{"id":7199,"date":"2025-01-03T03:07:19","date_gmt":"2025-01-03T03:07:19","guid":{"rendered":"https:\/\/jinsuncarbon.com\/?post_type=product&p=7199"},"modified":"2025-01-16T00:43:23","modified_gmt":"2025-01-16T00:43:23","slug":"poudre-de-graphite-de-haute-purete","status":"publish","type":"product","link":"https:\/\/jinsuncarbon.com\/fr\/produit-2\/poudre-de-graphite-de-haute-purete\/","title":{"rendered":"Poudre de graphite de haute puret\u00e9"},"content":{"rendered":"

Propri\u00e9t\u00e9s de la poudre de graphite de haute puret\u00e9<\/h2>\n

R\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es et conductivit\u00e9 thermique<\/strong><\/p>\n

Le point de fusion du graphite est de 3850\u00b150\u00b0C et son point d'\u00e9bullition de 4250\u00b0C. Le coefficient de dilatation thermique est tr\u00e8s faible, \u00e0 savoir 1,4\u00d710^-6\/K. Il permet donc de r\u00e9duire la perte de mati\u00e8re \u00e0 haute temp\u00e9rature. En outre, la conductivit\u00e9 thermique de la poudre de graphite de haute puret\u00e9 \u00e0 temp\u00e9rature ambiante peut atteindre 2,17\u00d710^6 W\/(cm-K), cette valeur pouvant varier en fonction de la m\u00e9thode de mesure et de la conversion des unit\u00e9s. Cette valeur peut varier en fonction de la m\u00e9thode de mesure et de la conversion des unit\u00e9s, mais elle peut n\u00e9anmoins montrer la conductivit\u00e9 thermique g\u00e9n\u00e9ralement sup\u00e9rieure de la poudre de graphite \u00e0 temp\u00e9rature ambiante. La conductivit\u00e9 thermique \u00e9lev\u00e9e et la r\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es de la poudre de graphite lui permettent de transf\u00e9rer rapidement la chaleur et de r\u00e9duire l'accumulation de chaleur. Elle peut \u00e9galement rester stable \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es.<\/p>\n

\u00c9lectrique :<\/strong> En raison de sa structure cristalline particuli\u00e8re, le graphite poss\u00e8de une bonne conductivit\u00e9 \u00e9lectrique. Plus la puret\u00e9 du graphite est \u00e9lev\u00e9e, plus la taille des particules est petite, plus la conductivit\u00e9 est forte. Ainsi, notre poudre de graphite de haute puret\u00e9 est capable de fournir une excellente conductivit\u00e9 \u00e9lectrique.<\/p>\n

Lubrification :<\/strong> La poudre de graphite de haute puret\u00e9 contient moins d'impuret\u00e9s, ce qui permet une meilleure lubrification et r\u00e9duit la friction et l'usure. Les particules de graphite de haute puret\u00e9 sont plus susceptibles de former un film lubrifiant uniforme, r\u00e9duisant ainsi le contact entre les surfaces m\u00e9caniques. Plus les flocons sont gros, plus le coefficient de frottement est faible et meilleures sont les performances de lubrification.<\/p>\n

Stabilit\u00e9 chimique :<\/strong> graphite<\/a> poss\u00e8de une bonne stabilit\u00e9 chimique \u00e0 temp\u00e9rature ambiante. Il peut r\u00e9sister \u00e0 la corrosion par les acides, les alcalis et les solvants organiques.<\/p>\n

 <\/p>\n

Applications de la poudre de graphite de haute puret\u00e9<\/h2>\n

Lubrifiant :<\/strong> En raison de son faible coefficient de frottement et de sa structure en feuillets, la poudre de graphite est souvent utilis\u00e9e comme lubrifiant sec, en particulier dans les environnements \u00e0 haute temp\u00e9rature ou \u00e0 vide pouss\u00e9. Elle est largement utilis\u00e9e pour la lubrification des pi\u00e8ces m\u00e9caniques, telles que les roulements et les engrenages.<\/p>\n

Industrie m\u00e9tallurgique :<\/strong> Poudre de graphite<\/a> est \u00e9galement un agent r\u00e9ducteur courant dans l'industrie m\u00e9tallurgique. Il aide \u00e0 \u00e9liminer les impuret\u00e9s dans les m\u00e9taux et \u00e0 am\u00e9liorer la puret\u00e9, la duret\u00e9 et la r\u00e9sistance des m\u00e9taux. En outre, il s'agit \u00e9galement d'un additif d'alliage pour l'industrie m\u00e9tallurgique. sid\u00e9rurgie<\/a> et les m\u00e9taux non ferreux.<\/p>\n

Mat\u00e9riaux ignifuges :<\/strong> Certains types de poudre de graphite peuvent \u00eatre ajout\u00e9s aux mat\u00e9riaux ignifuges pour am\u00e9liorer leur r\u00e9sistance au feu.<\/p>\n

Agent de moulage et de d\u00e9moulage :<\/strong> Au cours de la coul\u00e9e<\/a> Dans le processus de moulage, la poudre de graphite agit comme une couche isolante. Elle emp\u00eache le m\u00e9tal de coller au moule et assure un d\u00e9moulage en douceur. Dans la fabrication des moules, elle sert \u00e9galement d'agent de d\u00e9moulage.<\/p>\n

Mat\u00e9riau r\u00e9sistant \u00e0 la corrosion et \u00e9tanche :<\/strong> La poudre de graphite est \u00e9galement courante dans les mat\u00e9riaux d'\u00e9tanch\u00e9it\u00e9. Il s'agit par exemple de la poudre de granul\u00e9s (graisse antiadh\u00e9sive d'\u00e9tanch\u00e9it\u00e9). Elle est largement utilis\u00e9e dans les navires, les avions, les locomotives et d'autres machines de grande taille pour la surface de collage des m\u00e9taux, les pi\u00e8ces de raccordement des brides d'\u00e9tanch\u00e9it\u00e9 et l'anti-adh\u00e9rence. L'excellente r\u00e9sistance \u00e0 la corrosion permet au graphite de maintenir pendant longtemps des performances d'\u00e9tanch\u00e9it\u00e9 efficaces dans des environnements difficiles. Ils sont donc \u00e9galement utilis\u00e9s dans les industries chimiques et p\u00e9troli\u00e8res.<\/p>\n

Industrie l\u00e9g\u00e8re :<\/strong> La poudre de graphite est un agent de polissage et un agent antirouille pour la fabrication du verre et du papier dans l'industrie l\u00e9g\u00e8re. C'est \u00e9galement une mati\u00e8re premi\u00e8re indispensable pour la fabrication de crayons, d'encre, de peinture noire, d'encre et de diamants synth\u00e9tiques, etc.<\/p>\n

Industrie chimique :<\/strong> La poudre de graphite est utilis\u00e9e pour fabriquer des \u00e9quipements chimiques tels que des \u00e9changeurs de chaleur et des r\u00e9servoirs de r\u00e9action. Elle peut \u00e9galement servir de lubrifiant pour la production de catalyseurs dans l'industrie des engrais.<\/p>\n

 <\/p>\n

En outre, la poudre de graphite peut \u00e9galement \u00eatre utilis\u00e9e comme pigment et mat\u00e9riau de rev\u00eatement, comme lubrifiant dans la production de c\u00e2bles et pour la production d'un film de carbone r\u00e9sistant, d'une fili\u00e8re s\u00e8che conductrice. En g\u00e9n\u00e9ral, l'utilisation de la poudre de graphite est tr\u00e8s large et couvre presque tous les domaines de la production industrielle.<\/p>","protected":false},"excerpt":{"rendered":"

La poudre de graphite de haute puret\u00e9 est une poudre de graphite dont la puret\u00e9 (teneur en carbone) est sup\u00e9rieure \u00e0 99,9%. En l'absence d'oxyg\u00e8ne, le point de fusion de la poudre de graphite est sup\u00e9rieur \u00e0 3 000 \u00b0C, ce qui en fait l'un des min\u00e9raux les plus r\u00e9sistants \u00e0 la temp\u00e9rature. En outre, la poudre de graphite poss\u00e8de des propri\u00e9t\u00e9s chimiques relativement stables \u00e0 temp\u00e9rature ambiante.<\/p>\n

La poudre de graphite de haute puret\u00e9 peut \u00eatre utilis\u00e9e comme lubrifiants, \u00e9lectrodes, mat\u00e9riaux r\u00e9fractaires et mat\u00e9riaux composites.<\/p>","protected":false},"featured_media":7200,"template":"","meta":[],"product_brand":[],"product_cat":[67],"product_tag":[],"class_list":{"0":"post-7199","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-graphite-material","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"\nHigh Purity Graphite Powder | Jinsun Carbon<\/title>\n<meta name=\"description\" content=\"High purity graphite powder manufacturer in China, with a purity (carbon content) of more than 99.9%, widely used for lubricants, electrodes, refractory materials.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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