{"id":5854,"date":"2024-10-07T11:55:40","date_gmt":"2024-10-07T11:55:40","guid":{"rendered":"https:\/\/jinsuncarbon.com\/?p=5854"},"modified":"2024-12-29T04:37:48","modified_gmt":"2024-12-29T04:37:48","slug":"cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite","status":"publish","type":"post","link":"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/","title":{"rendered":"Cadinho de carbeto de sil\u00edcio versus cadinho de grafite - Qual \u00e9 a diferen\u00e7a?"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span><strong><b>Introdu\u00e7\u00e3o <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As propriedades, incluindo densidade e resist\u00eancia ao calor, s\u00e3o comparadas entre <a href=\"https:\/\/jinsuncarbon.com\/pt\/graphite-crucible-vs-silicon-carbide-crucible\/\"><strong><b>\u00a0Cadinho de carbeto de sil\u00edcio vs. cadinho de grafite<\/b><\/strong><\/a>. A densidade do grafite \u00e9 de cerca de 1,8-2,1 g\/cm\u00b3 e n\u00e3o ser\u00e1 destru\u00edda em temperaturas de at\u00e9 3.000 \u00b0C. Portanto, os cadinhos de SiC t\u00eam uma densidade pr\u00f3xima a 3,1 g\/cm\u00b3 e resistem bem a cerca de 1600 \u00b0C. Ambos s\u00e3o utilizados em fornos quentes. Saiba qual \u00e9 a fun\u00e7\u00e3o de cada um deles na fus\u00e3o de metais.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Introduction\" >Introdu\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#What_Is_Graphite_Crucible\" >O que \u00e9 cadinho de grafite?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#What_Is_Silicon_Carbide_Crucible\" >O que \u00e9 um cadinho de carbeto de sil\u00edcio?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Graphite_Crucible_vs_Silicon_Carbide_Crucible_%E2%80%93_Key_Differences\" >Cadinho de grafite x Cadinho de carbeto de sil\u00edcio - Principais diferen\u00e7as!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Melting_Point\" >- Ponto de fus\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Chemical_Resistance\" >- Resist\u00eancia qu\u00edmica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Material_Porosity\" >- Porosidade do material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Electrical_Conductivity\" >- Condutividade el\u00e9trica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Thermal_Stability\" >- Estabilidade t\u00e9rmica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Oxidation_Resistance\" >- Resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Heat_Absorption\" >- Absor\u00e7\u00e3o de calor<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Thermal_Conductivity_and_Heat_Resistance_of_Graphite_Crucible_vs_Silicon_Carbide_Crucible\" >Condutividade t\u00e9rmica e resist\u00eancia ao calor do cadinho de grafite versus cadinho de carbeto de sil\u00edcio!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Heat_Transfer_Efficiency\" >- Efici\u00eancia de transfer\u00eancia de calor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Maximum_Operating_Temperature\" >- Temperatura m\u00e1xima de opera\u00e7\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Heat_Retention\" >- Reten\u00e7\u00e3o de calor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Thermal_Degradation\" >- Degrada\u00e7\u00e3o t\u00e9rmica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Temperature_Range\" >- Faixa de temperatura<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Durability_and_Mechanical_Strength_in_Graphite_and_Silicon_Carbide_Crucibles\" >Durabilidade e resist\u00eancia mec\u00e2nica em cadinhos de grafite e carbeto de sil\u00edcio!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Fracture_Toughness\" >- Resist\u00eancia \u00e0 fratura<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Compressive_Strength\" >- Resist\u00eancia \u00e0 compress\u00e3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Wear_Resistance\" >- Resist\u00eancia ao desgaste<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Crack_Propagation\" >- Propaga\u00e7\u00e3o de rachaduras<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Impact_Resistance\" >- Resist\u00eancia ao impacto<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Material_Composition_and_Structure\" >Composi\u00e7\u00e3o e estrutura do material!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Carbon_Content\" >- Conte\u00fado de carbono<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Grain_Alignment\" >- Alinhamento de gr\u00e3os<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Crystal_Lattice\" >- Malha de cristal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Molecular_Bonds\" >- Liga\u00e7\u00f5es moleculares<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Material_Density\" >- Densidade do material<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Differences_in_Performance_in_Specific_Industrial_Applications\" >Diferen\u00e7as de desempenho em aplica\u00e7\u00f5es industriais espec\u00edficas!<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Steel_Foundries\" >- Fundi\u00e7\u00f5es de a\u00e7o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Jewelry_Casting\" >- Fundi\u00e7\u00e3o de joias<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Aluminum_Smelting\" >- Fundi\u00e7\u00e3o de alum\u00ednio<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Ceramic_Manufacturing\" >- Fabrica\u00e7\u00e3o de cer\u00e2mica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Chemical_Processing\" >- Processamento qu\u00edmico<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Which_Crucible_is_Right_for_Your_Process\" >Qual cadinho \u00e9 o ideal para o seu processo?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Operating_Temperature\" >- Temperatura operacional<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Material_Reactivity\" >- Reatividade do material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Process_Duration\" >- Dura\u00e7\u00e3o do processo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Metal_Compatibility\" >- Compatibilidade com metais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#%C2%B7_Budget_Constraints\" >- Restri\u00e7\u00f5es or\u00e7ament\u00e1rias<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/jinsuncarbon.com\/pt\/cadinho-de-carbeto-de-silicio-vs-cadinho-de-grafite\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Graphite_Crucible\"><\/span><strong><b>O que \u00e9 cadinho de grafite? <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/jinsuncarbon.com\/pt\/preco-do-cadinho-de-grafite\/\">Cadinhos de grafite<\/a>\u00a0atingir 3000\u00b0C. Isso \u00e9 quente! Ele derrete o Al e o Cu. \u00c9 leve, devido a uma densidade de 1,8 g\/cm\u00b3. \u00c9 forte porque usa <a href=\"https:\/\/en.wikipedia.org\/wiki\/Silicon_dioxide\">SiO\u2082<\/a>\u00a0revestimento. Esse material tem um fluxo de calor de 200 W\/m- K e excelente capacidade de fus\u00e3o.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-5856 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles.png\" alt=\"Cadinhos de grafite\" width=\"538\" height=\"401\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles.png 1067w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-600x447.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-300x224.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-1024x763.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-768x572.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-16x12.png 16w\" sizes=\"(max-width: 538px) 100vw, 538px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Silicon_Carbide_Crucible\"><\/span><strong><b>O que \u00e9 um cadinho de carbeto de sil\u00edcio?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p>Os cadinhos de carbeto de sil\u00edcio atingem 1600\u00b0C. Mas eles s\u00e3o mais duros, com classifica\u00e7\u00e3o 9 na escala Mohs. A compara\u00e7\u00e3o do meio, \"Cadinho de grafite vs Cadinho de carbeto de sil\u00edcio\", mostra que esse cadinho \u00e9 pesado, com 3,1 g\/cm\u00b3. Ele funciona em fundi\u00e7\u00f5es de Fe e Pb. Sua resist\u00eancia \u00e9 de 300 MPa.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-5857 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles.png\" alt=\"Cadinhos de carbeto de sil\u00edcio\" width=\"530\" height=\"350\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles.png 974w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-600x397.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-300x198.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-768x508.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-18x12.png 18w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Graphite_Crucible_vs_Silicon_Carbide_Crucible_%E2%80%93_Key_Differences\"><\/span><strong><b>Cadinho de grafite x Cadinho de carbeto de sil\u00edcio - Principais diferen\u00e7as!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Melting_Point\"><\/span><b>-\u00a0<\/b><strong><b>Ponto de fus\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os cadinhos de grafite derretem a 3.650\u00b0C, mas o SiC para a 2.700\u00b0C. Isso exige mudan\u00e7as no forno. O cadinho de grafite versus o cadinho de carbeto de sil\u00edcio mostra que o SiC aquece mais rapidamente. Ambos derretem metais de forma diferente.<\/p>\n<p>Tarefas de alto calor, mas em diferentes temperaturas, podem ser executadas adequadamente para diferentes fornos e ligas.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Chemical_Resistance\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia qu\u00edmica<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os \u00e1cidos fortes s\u00e3o facilmente manipulados pelo SiC. O fl\u00faor n\u00e3o o prejudica. Aqui, o grafite n\u00e3o funciona t\u00e3o bem. A compara\u00e7\u00e3o entre o cadinho de grafite e o cadinho de carbeto de sil\u00edcio mostra que o SiC resiste melhor aos produtos qu\u00edmicos.<\/p>\n<p>Quando se trata de sal fundido, isso \u00e9 \u00fatil. Todos eles podem se adequar a diferentes metais ou produtos qu\u00edmicos, dependendo do que fazem nos fornos.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Porosity\"><\/span><b>-\u00a0<\/b><strong><b>Porosidade do material<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os gases passam mais facilmente, pois o grafite tem 10% a mais de porosidade. Os gases n\u00e3o podem entrar no SiC durante a fus\u00e3o do metal. Isso ajuda os metais a permanecerem puros. A compara\u00e7\u00e3o entre o cadinho de grafite e o cadinho de carbeto de sil\u00edcio mostra que a porosidade do SiC o torna melhor para a pureza. Se o grafite for usado em tais configura\u00e7\u00f5es, os gases podem enfraquecer o processo.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Electrical_Conductivity\"><\/span><b>-\u00a0<\/b><strong><b>Condutividade el\u00e9trica<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O SiC \u00e9 resistente \u00e0 eletricidade e o grafite \u00e9 condutor de eletricidade. O SiC tem 1,0e+06 \u03a9-cm, o grafite 10\u2076 \u03a9-cm e 105 S\/m. Em <a href=\"https:\/\/jinsuncarbon.com\/pt\/graphite-electrode-for-electric-arc-furnace\/\">fornos el\u00e9tricos<\/a>\u00a0isso \u00e9 um problema. A fus\u00e3o do arco el\u00e9trico depende da condutividade.<\/p>\n<p>O aquecimento el\u00e9trico \u00e9 melhor com grafite. Ele n\u00e3o \u00e9 adequado para fus\u00e3o el\u00e9trica, mas \u00e9 mais do que adequado para isolamento. Os eletrodos de grafite da Jinsun Carbon conduzem melhor a eletricidade para uma opera\u00e7\u00e3o eficiente do forno a arco.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Thermal_Stability\"><\/span><b>-\u00a0<\/b><strong><b>Estabilidade t\u00e9rmica<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Alcan\u00e7ando mudan\u00e7as r\u00e1pidas de calor de at\u00e9 1.500\u00b0C, o SiC \u00e9 capaz de absorver e liberar mudan\u00e7as extremas de calor em compara\u00e7\u00e3o com os materiais convencionais. Quando as temperaturas mudam, o grafite pode rachar mais facilmente.<\/p>\n<p>Por esse motivo, o SiC pode operar de forma est\u00e1vel sob r\u00e1pidas mudan\u00e7as de calor. Entretanto, cada material \u00e9 adequado para outros usos, dependendo das temperaturas no forno, sendo que o SiC oferece o melhor desempenho quando h\u00e1 mudan\u00e7as r\u00e1pidas nas temperaturas do forno.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Oxidation_Resistance\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite se oxida a 450\u00b0C, mas o SiC se mant\u00e9m mais forte, suportando at\u00e9 1.000\u00b0C. O SiC permanece forte no oxig\u00eanio. Ele tem uma vantagem por estar em ambientes com muito oxig\u00eanio. O grafite precisa ser protegido de si mesmo, caso contr\u00e1rio, ele se desgasta mais rapidamente. Na resist\u00eancia \u00e0 oxida\u00e7\u00e3o, o SiC vence novamente, permanecendo intacto durante processos quentes e cheios de oxig\u00eanio.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Absorption\"><\/span><b>-\u00a0<\/b><strong><b>Absor\u00e7\u00e3o de calor<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O SiC absorve menos calor (1,23 J\/g-K) do que o grafite (1,75 J\/g-K), mas o libera mais rapidamente. Isso altera as taxas de fus\u00e3o. Por exemplo, a energia do forno \u00e9 afetada pela absor\u00e7\u00e3o do calor do cadinho nos metais de fus\u00e3o.<\/p>\n<p>A maneira como cada material lida com o calor \u00e9 diferente. \u00c9 vantajoso saber qual cadinho usar para um determinado trabalho com metal. Para a fundi\u00e7\u00e3o de metais de alto desempenho, nosso cadinho <a href=\"https:\/\/jinsuncarbon.com\/pt\/graphite-electrodes-raw-material\/\">eletrodos de grafite<\/a>\u00a0s\u00e3o exportados para mais de 30 pa\u00edses.<\/p>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong><b>Par\u00e2metro<\/b><\/strong><\/td>\n<td><strong><b>Cadinho de grafite<\/b><\/strong><\/td>\n<td><strong><b>Cadinho de carbeto de sil\u00edcio<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong><b>Ponto de fus\u00e3o<\/b><\/strong><\/td>\n<td>3,600\u00b0C<\/td>\n<td>2,800\u00b0C<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Resist\u00eancia qu\u00edmica<\/b><\/strong><\/td>\n<td>Moderado (\u00e1cidos\/\u00e1lcalis)<\/td>\n<td>Alta (\u00e1cidos\/\u00e1lcalis)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Porosidade do material<\/b><\/strong><\/td>\n<td>Baixa<\/td>\n<td>Menor que o grafite<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Condutividade el\u00e9trica<\/b><\/strong><\/td>\n<td>Alta (condutiva)<\/td>\n<td>Moderado (Semi-condutor)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Estabilidade t\u00e9rmica<\/b><\/strong><\/td>\n<td>Excelente (at\u00e9 2.500\u00b0C)<\/td>\n<td>Muito alta (at\u00e9 2.200\u00b0C)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Resist\u00eancia \u00e0 oxida\u00e7\u00e3o<\/b><\/strong><\/td>\n<td>Baixa<\/td>\n<td>Mais alto (melhor contra o ar)<\/td>\n<\/tr>\n<tr>\n<td><strong><b>Absor\u00e7\u00e3o de calor<\/b><\/strong><\/td>\n<td>Alta<\/td>\n<td>Moderado<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><em><b><i>Tabela sobre Cadinho de Grafite vs Cadinho de Carbeto de Sil\u00edcio - Principais diferen\u00e7as!<\/i><\/b><\/em><\/strong><\/p>\n<p><strong><em><b><i>\u00a0<\/i><\/b><\/em><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Thermal_Conductivity_and_Heat_Resistance_of_Graphite_Crucible_vs_Silicon_Carbide_Crucible\"><\/span><strong><b>Condutividade t\u00e9rmica e resist\u00eancia ao calor do cadinho de grafite versus cadinho de carbeto de sil\u00edcio!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"wp-image-5859 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting.png\" alt=\"Cadinhos de grafite para fundi\u00e7\u00e3o\" width=\"591\" height=\"301\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting.png 1589w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-600x305.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-300x153.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-1024x521.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-768x391.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-1536x781.png 1536w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Graphite-crucibles-for-smelting-18x9.png 18w\" sizes=\"(max-width: 591px) 100vw, 591px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Transfer_Efficiency\"><\/span><b>-\u00a0<\/b><strong><b>Efici\u00eancia de transfer\u00eancia de calor<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite transfere o calor mais rapidamente a 700 W\/m-K. O SiC transfere calor a 360 W\/m-K <a href=\"https:\/\/jinsuncarbon.com\/pt\/diferencas-entre-eletrodos-de-grafite-e-eletrodos-de-carbono\/\">\u00a0Cadinho de carbeto de sil\u00edcio vs. cadinho de grafite<\/a>\u00a0mostra que o SiC derrete o ferro (Fe) de maneira uniforme. Para mudan\u00e7as de calor mais r\u00e1pidas, o grafite \u00e9 melhor. Os diferentes trajes funcionam em diferentes tipos de metal, como o alum\u00ednio (Al).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Maximum_Operating_Temperature\"><\/span><b>-\u00a0<\/b><strong><b>Temperatura m\u00e1xima de opera\u00e7\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O SiC pode atingir 1600\u00b0C, enquanto o grafite atinge 3000\u00b0C. Como resultado, o grafite \u00e9 perfeito para tarefas muito quentes. Eventualmente, eles derretem essas coisas como a\u00e7o. O SiC lida com trabalhos comuns. A diferen\u00e7a de temperaturas \u00e9 fundamental no debate entre o cadinho de grafite e o cadinho de carbeto de sil\u00edcio.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Heat_Retention\"><\/span><b>-\u00a0<\/b><strong><b>Reten\u00e7\u00e3o de calor<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite ret\u00e9m o calor por mais tempo. O SiC tem 0,75 J\/g-K, enquanto o SiC tem 0,7 J\/g-K. Isso significa que o SiC esfria mais r\u00e1pido. O comportamento deles em rela\u00e7\u00e3o a metais como o cobre (Cu) \u00e9 diferente. Se o aquecimento for mais demorado, o grafite \u00e9 uma excelente ajuda, por isso \u00e9 usado em um grande n\u00famero de processos.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Thermal_Degradation\"><\/span><b>-\u00a0<\/b><strong><b>Degrada\u00e7\u00e3o t\u00e9rmica<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite resiste a altas temperaturas. A 1600\u00b0C, o SiC come\u00e7a a se decompor. Ele resiste a at\u00e9 2000\u00b0C. Essa diferen\u00e7a faz com que o grafite dure mais. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Sic\" target=\"_blank\" rel=\"noopener\">SiC<\/a> rachaduras no calor intenso. E sua vida \u00fatil depende do calor.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Temperature_Range\"><\/span><b>-\u00a0<\/b><strong><b>Faixa de temperatura<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite \u00e9 est\u00e1vel desde a temperatura ambiente at\u00e9 3000\u00b0C e as temperaturas de trabalho v\u00e3o de -50\u00b0C a 2500\u00b0C. A faixa de temperatura do SiC \u00e9 de -20\u00b0C a 1600\u00b0C. Eles fazem trabalhos diferentes.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Durability_and_Mechanical_Strength_in_Graphite_and_Silicon_Carbide_Crucibles\"><\/span><strong><b>Durabilidade e resist\u00eancia mec\u00e2nica em cadinhos de grafite e carbeto de sil\u00edcio!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5858 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting.png\" alt=\"Cadinhos de carbeto de sil\u00edcio para fundi\u00e7\u00e3o\" width=\"578\" height=\"422\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting.png 1090w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-600x438.png 600w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-300x219.png 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-1024x747.png 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-768x560.png 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/10\/Silicon-carbide-crucibles-for-smelting-16x12.png 16w\" sizes=\"(max-width: 578px) 100vw, 578px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Fracture_Toughness\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia \u00e0 fratura<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/jinsuncarbon.com\/pt\/\/cadinho-de-grafite\/\">Cadinho de grafite<\/a>\u00a0\u00e9 forte em 4 <a href=\"#:~:text=MPa-Sqrt(meter)%20(,length%2C%20and%20T%20is%20time.\">MPa\u221am<\/a>. \u00c9 mais resistente a 9 MPa\u221am com cadinho de carbeto de sil\u00edcio (SiC). Ele pode suportar fus\u00f5es mais quentes de at\u00e9 1800\u00b0C. As paredes mais espessas impedem as rachaduras. Al\u00e9m disso, isso \u00e9 bom se a press\u00e3o for de 3000 psi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Compressive_Strength\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia \u00e0 compress\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cargas pesadas podem ser transportadas. <a href=\"https:\/\/jinsuncarbon.com\/pt\/os-usos-do-grafite\/\">Grafite<\/a>\u00a0esmaga a 40 MPa. O SiC tem 300 MPa. O metal fundido a mais de 1600\u00b0C \u00e9 protegido por isso. Os cadinhos de SiC s\u00e3o mais espessos. Eles duram at\u00e9 a fus\u00e3o. Com press\u00e3o de 1000 kg\/cm\u00b2, ele funciona.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Wear_Resistance\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia ao desgaste<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A resist\u00eancia ao desgaste dos cadinhos \u00e9 de at\u00e9 1650\u00b0C. O carbeto de sil\u00edcio dura mais. Isso o torna mais forte do que os cadinhos de grafite. Em 200 derretimentos, o SiC resiste ao atrito. O cadinho de grafite versus o cadinho de carbeto de sil\u00edcio mostra que o SiC se desgasta menos. Ele atinge uma dureza de superf\u00edcie de 25 GPa, alta em compara\u00e7\u00e3o com o grafite de 15 GPa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Crack_Propagation\"><\/span><b>-\u00a0<\/b><strong><b>Propaga\u00e7\u00e3o de rachaduras<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os cadinhos de SiC tamb\u00e9m apresentam rachaduras de crescimento mais lento. Sua expans\u00e3o t\u00e9rmica tem um valor de 4,6 \u03bcm\/m\u00b0C. A 7,4 \u03bcm\/m\u00b0C, o grafite se expande. Sob calor, o cadinho \u00e9 forte. Os testes de cadinho de grafite versus cadinho de carbeto de sil\u00edcio mostram menos rachaduras. Isso \u00e9 bom para a seguran\u00e7a do metal fundido, especialmente a 1600\u00b0C.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Impact_Resistance\"><\/span><b>-\u00a0<\/b><strong><b>Resist\u00eancia ao impacto<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os cadinhos resistem bem ao impacto. O grafite absorve 80 J de energia. Ele absorve 200 J. Os cadinhos de SiC s\u00e3o mais resistentes devido a isso. Quando caem, eles n\u00e3o se quebram facilmente. Al\u00e9m disso, eles permanecem fortes quando a temperatura muda. Com 2,1 g\/cm\u00b3 de peso, o SiC \u00e9 mais eficaz.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Material_Composition_and_Structure\"><\/span><strong><b>Composi\u00e7\u00e3o e estrutura do material!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Carbon_Content\"><\/span><b>-\u00a0<\/b><strong><b>Conte\u00fado de carbono<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite tem 95% de carbono. Seu 70% \u00e9 o carbeto de sil\u00edcio (SiC). Seus \u00e1tomos se aderem firmemente. O grafite tem liga\u00e7\u00f5es C-C mais leves. O SiC adiciona \u00e1tomos de sil\u00edcio. Isso o torna forte a 2500\u00b0C. A +3000\u00b0C, o grafite derrete melhor. Ambos funcionam de forma diferente! O cadinho de grafite versus o cadinho de carbeto de sil\u00edcio mostra como os n\u00edveis de carbono alteram a velocidade de aquecimento do metal.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Grain_Alignment\"><\/span><b>-\u00a0<\/b><strong><b>Alinhamento de gr\u00e3os<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os gr\u00e3os de SiC medem 12 m\u00edcrons. Os gr\u00e3os de grafite s\u00e3o maiores, com 16 m\u00edcrons. Isso torna as superf\u00edcies mais lisas porque os gr\u00e3os s\u00e3o menores. Isso ajuda o metal a n\u00e3o grudar! Em termos fortes, a resist\u00eancia \u00e0 fratura do SiC \u00e9 de 50 MPa, em contraste com os 30 MPa do grafite. As rachaduras s\u00e3o controladas pela dire\u00e7\u00e3o dos gr\u00e3os. Isso ajuda a manter os cadinhos trabalhando duro!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Crystal_Lattice\"><\/span><b>-\u00a0<\/b><strong><b>Malha de cristal<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Espa\u00e7amento de treli\u00e7a de 3,35 \u00c5 do grafite. Sua largura \u00e9 de 7,48 \u00c5 e, portanto, mais resistente. A 2000\u00b0C, o SiC mant\u00e9m sua forma melhor. Os \u00e1tomos de sil\u00edcio em suas liga\u00e7\u00f5es o tornam assim. O calor flui de forma diferente em uma estrutura de treli\u00e7a. O design do cadinho de grafite versus o cadinho de carbeto de sil\u00edcio mostra claramente essa diferen\u00e7a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Molecular_Bonds\"><\/span><b>-\u00a0<\/b><strong><b>Liga\u00e7\u00f5es moleculares<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Isso significa que as liga\u00e7\u00f5es de SiC t\u00eam energia de 452 kJ\/mol. O grafite tem 348 kJ\/mol de liga\u00e7\u00e3o de carbono. No entanto, as liga\u00e7\u00f5es Si-C s\u00e3o bastante resistentes a rachaduras causadas pelo calor! De acordo com os delegados, o grafite \u00e9 bom para suportar mudan\u00e7as bruscas de calor. Eles s\u00e3o resistentes pela maneira como reagem, mas s\u00e3o flex\u00edveis. Ou seja, ambos os tipos s\u00e3o bons para diferentes trabalhos de aquecimento em altas temperaturas!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Density\"><\/span><b>-\u00a0<\/b><strong><b>Densidade do material<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Entretanto, o SiC tamb\u00e9m \u00e9 mais denso (3,1 g\/cm\u00b3). O grafite tem apenas 1,9 g\/cm\u00b3, portanto, obviamente, n\u00e3o \u00e9 muito denso. Isso diminui o calor e suporta mais press\u00e3o. Eles s\u00e3o diferentes de como reagem ao peso. A temperatura de 2500\u00b0C pode ser controlada pelo SiC denso. O grafite \u00e9 mais leve, portanto, aquece mais rapidamente. Ambos os materiais trabalham muito duro para derreter o metal!<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Differences_in_Performance_in_Specific_Industrial_Applications\"><\/span><strong><b>Diferen\u00e7as de desempenho em aplica\u00e7\u00f5es industriais espec\u00edficas!<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Steel_Foundries\"><\/span><b>-\u00a0<\/b><strong><b>Fundi\u00e7\u00f5es de a\u00e7o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O a\u00e7o quente derrete a 1.500\u00b0C. Os cadinhos de SiC oferecem resist\u00eancia a choques causados pela mudan\u00e7a de calor. Mas eles ret\u00eam o calor rapidamente, 130 W\/m-K. Ambos lidam com 15 toneladas de a\u00e7o por dia. Ele pode sobreviver a 3.000 ciclos de aquecimento. Os fornos de 200 kW funcionam melhor por causa do cadinho.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Jewelry_Casting\"><\/span><b>-\u00a0<\/b><strong><b>Fundi\u00e7\u00e3o de joias<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O ouro derrete a 1.064\u00b0C. A fundi\u00e7\u00e3o em cadinhos de SiC dura 200 ciclos. A contamina\u00e7\u00e3o em menos de 0,01% \u00e9 evitada pelo grafite, e a mistura de ouro n\u00e3o afetou a absor\u00e7\u00e3o do ouro. As m\u00e1quinas de 2 kw aquecem rapidamente.<\/p>\n<p>O cadinho de grafite versus o cadinho de carbeto de sil\u00edcio apresenta melhor desempenho na fundi\u00e7\u00e3o a v\u00e1cuo a 2 bar de press\u00e3o. Eles tamb\u00e9m produzem an\u00e9is brilhantes e bonitos.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Aluminum_Smelting\"><\/span><b>-\u00a0<\/b><strong><b>Fundi\u00e7\u00e3o de alum\u00ednio<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O alum\u00ednio derrete a 660\u00b0C. <a href=\"https:\/\/jinsuncarbon.com\/pt\/qual-e-a-aplicacao-dos-eletrodos-de-grafite\/\">Cadinho de carbeto de sil\u00edcio vs. cadinho de grafite<\/a> ajuda a acelerar o aquecimento, at\u00e9 2\u00b0C\/min. 1.200 ciclos mostram que o tipo SiC \u00e9 mais resistente a rachaduras. Ele \u00e9 usado em fornos de 5 kW. O 10% de maior produ\u00e7\u00e3o tamb\u00e9m derrete alum\u00ednio um pouco mais r\u00e1pido. Os cadinhos t\u00eam capacidade para 50 kg.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Ceramic_Manufacturing\"><\/span><b>-\u00a0<\/b><strong><b>Fabrica\u00e7\u00e3o de cer\u00e2mica<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Para produzir cer\u00e2mica, eles atingem 1.400\u00b0C. O aquecimento r\u00e1pido, medido a 3\u00b0C\/s, \u00e9 realizado por cadinhos de SiC. Ele se mant\u00e9m limpo e n\u00e3o h\u00e1 contamina\u00e7\u00e3o por metais, pois \u00e9 do tipo grafite. Cada um deles trabalha em fornos de at\u00e9 50 litros. Ele sobrevive a 800 ciclos a 1.200\u00b0C. Isso ajuda a produzir cer\u00e2mica lisa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Chemical_Processing\"><\/span><b>-\u00a0<\/b><strong><b>Processamento qu\u00edmico<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os reatores v\u00e3o at\u00e9 1.200\u00b0C. Os cadinhos de grafite resistem aos \u00e1cidos, durando mais tempo. O SiC tamb\u00e9m pode suportar alta press\u00e3o - at\u00e9 2.500 PSI. Isso torna as rea\u00e7\u00f5es mais r\u00e1pidas. Em reatores de 100 litros, ele aquece o fluxo t\u00e9rmico em 90 W\/m-K. Em reatores de 100 kW, eles tamb\u00e9m s\u00e3o bastante s\u00f3lidos no manuseio do calor.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Which_Crucible_is_Right_for_Your_Process\"><\/span><strong><b>Qual cadinho \u00e9 o ideal para o seu processo?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Operating_Temperature\"><\/span><b>-\u00a0<\/b><strong><b>Temperatura operacional<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>At\u00e9 3.000\u00b0C, o grafite pode ficar quente. O SiC em si permanece em uma temperatura fria de 1.600\u00b0C. Isso afeta o fluxo de calor. Gerenciando a temperatura de forma diferente. O SiC tem condutividade t\u00e9rmica de 120 W\/m-K, o que ajuda no resfriamento ou aquecimento r\u00e1pido. A velocidade de seu processo depende da escolha certa. \u00c9 assim que o \"Cadinho de Grafite vs Cadinho de Carbeto de Sil\u00edcio\" se comporta sob calor. Cada um atende a necessidades diferentes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Material_Reactivity\"><\/span><b>-\u00a0<\/b><strong><b>Reatividade do material<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite reage acima de 450\u00b0C. O SiC permanece seguro at\u00e9 1.600\u00b0C. Menos rea\u00e7\u00f5es ocorrem em seu interior. A taxa de extra\u00e7\u00e3o do SiC \u00e9 de 0,1 \u00b5m\/ano. Ele mant\u00e9m as coisas limpas. Evita problemas no forno. A reatividade muda a forma como o \"Cadinho de grafite vs Cadinho de carbeto de sil\u00edcio\" se comporta com gases ou produtos qu\u00edmicos. Manter a pureza significa escolher com sabedoria.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Process_Duration\"><\/span><b>-\u00a0<\/b><strong><b>Dura\u00e7\u00e3o do processo<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite dura 1.200 ciclos. O SiC pode durar 2.500 ciclos. Para o SiC, a taxa de desgaste \u00e9 de 0,5 mm\/ano. Eles permanecem fortes por mais tempo. Seu tempo de processo \u00e9 afetado por cada ciclo. O SiC tem dureza 9 na escala de Mohs. Maior durabilidade significa que um processo mais longo precisa de maior durabilidade. Isso torna o seu processo suave e econ\u00f4mico.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Metal_Compatibility\"><\/span><b>-\u00a0<\/b><strong><b>Compatibilidade com metais<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O grafite funde o a\u00e7o. O SiC funde cobre, lat\u00e3o e alum\u00ednio. A porosidade do SiC \u00e9 8%. Diferentes metais funcionam com eles. A fus\u00e3o limpa tem a ver com compatibilidade. Ela mant\u00e9m os metais puros. A expans\u00e3o t\u00e9rmica do SiC \u00e9 de 4,3 \u00b5m\/m\u00b0C. N\u00e3o contamine com metal.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%C2%B7_Budget_Constraints\"><\/span><b>-\u00a0<\/b><strong><b>Restri\u00e7\u00f5es or\u00e7ament\u00e1rias<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O SiC custa $100, embora <a href=\"https:\/\/jinsuncarbon.com\/pt\/como-fazer-um-cadinho-de-grafite\/\">grafite<\/a>\u00a0\u00e9 apenas $50. Isso afeta seu plano financeiro. Eles se desgastam de forma diferente. O SiC dura mais e, no final, economiza seu dinheiro. O pre\u00e7o de cada cadinho, entretanto, determina como ele funciona. Economize dinheiro pagando por substitui\u00e7\u00f5es. Escolha com sabedoria. Quanto mais voc\u00ea pagar por algo e quanto mais tempo levar para chegar, mais voc\u00ea gastar\u00e1.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong><b>Conclus\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong><b>Cadinho de grafite vs Cadinho de carbeto de sil\u00edcio<\/b><\/strong>\u00a0compara calor, resist\u00eancia e muito mais. A oxida\u00e7\u00e3o de 1.000\u00b0C resiste ao SiC, mas o grafite pode suportar apenas 450\u00b0C. O grafite aquece rapidamente com um fluxo t\u00e9rmico de 700 W\/m-K. D\u00ea uma olhada em <a href=\"https:\/\/jinsuncarbon.com\/pt\/\">JINSUNCARBON<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Properties including density and heat resistance are compared between \u00a0Silicon Carbide vs Graphite Crucible. The density of graphite is about 1.8\u20132.1 g\/cm\u00b3 and won\u2019t be destroyed at temperatures of up to 3000 \u00b0C. Therefore, SiC crucibles have a density close to 3.1 g\/cm\u00b3, and stand well at around 1600\u00b0C. Both serve in hot furnaces. [&hellip;]<\/p>","protected":false},"author":3,"featured_media":5856,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-carbon-graphite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.2.1 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Silicon Carbide Vs Graphite Crucible<\/title>\n<meta name=\"description\" content=\"Compare Silicon Carbide Vs Graphite Crucible\u00a0for melting metals. 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