{"id":6775,"date":"2021-04-04T17:38:37","date_gmt":"2021-04-04T17:38:37","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6775"},"modified":"2021-04-15T07:47:28","modified_gmt":"2021-04-15T07:47:28","slug":"comment-ameliorer-la-resistance-a-lusure-des-boulets-de-broyage-en-alumine","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/fr\/comment-ameliorer-la-resistance-a-lusure-des-boulets-de-broyage-en-alumine\/","title":{"rendered":"Comment am\u00e9liorer la r\u00e9sistance \u00e0 l'usure des boulets de broyage en alumine ?"},"content":{"rendered":"

Les billes de broyage en alumine constituent un moyen de broyage important sur le march\u00e9 actuel de l'industrie du broyage. Il s'agit \u00e9galement d'un bille en c\u00e9ramique<\/a> qui est tr\u00e8s demand\u00e9e dans les mat\u00e9riaux de broyage des broyeurs \u00e0 boulets. Boules de broyage en alumine<\/a> sont indubitablement bonnes pour le broyage et la r\u00e9sistance \u00e0 l'usure. Comment am\u00e9liorer les boulets de broyage en alumine ? Qu'en est-il de la r\u00e9sistance \u00e0 l'usure ?<\/p>\n

Tout d'abord, le choix de l'Al2O3 comme mati\u00e8re premi\u00e8re pour les boulets de broyage en alumine est tr\u00e8s important.<\/h2>\n

Le choix de l'Al2O3 affecte directement la qualit\u00e9 finale et la performance de broyage du produit. billes d'alumine<\/a>. La taille des particules de la mati\u00e8re premi\u00e8re Al2O3 affecte aussi directement la r\u00e9sistance des billes de broyage en alumine. Lorsque les particules de mati\u00e8re premi\u00e8re Al2O3 sont plus petites, le principe d'usure subit une d\u00e9formation plastique et une fracture transgranulaire partielle, puis une l\u00e9g\u00e8re usure. Lorsque les particules de mati\u00e8re premi\u00e8re Al2O3 sont plus grosses, une fracture transgranulaire se produit. Elle sera consid\u00e9rablement am\u00e9lior\u00e9e et une usure importante se produira. Par cons\u00e9quent, d'apr\u00e8s l'analyse des deux points ci-dessus, plus la taille des grains de la mati\u00e8re premi\u00e8re Al2O3 est petite, meilleure est la r\u00e9sistance \u00e0 l'usure de la bille de broyage en alumine. Il est recommand\u00e9 d'acheter des mati\u00e8res premi\u00e8res d'Al2O3 \u00e0 l'avenir. Pour l'instant, il est pr\u00e9f\u00e9rable d'utiliser des mati\u00e8res premi\u00e8res d'Al2O3 dont la taille des grains est plus petite.<\/p>\n

Deuxi\u00e8mement, il est n\u00e9cessaire de s\u00e9lectionner un adjuvant de frittage appropri\u00e9<\/h2>\n

et r\u00e9duire la temp\u00e9rature de frittage de la bille de broyage en alumine gr\u00e2ce \u00e0 l'adjuvant de frittage, am\u00e9liorant ainsi la microstructure de la c\u00e9ramique et les propri\u00e9t\u00e9s m\u00e9caniques de la bille de broyage en alumine, et enfin am\u00e9liorant la r\u00e9sistance \u00e0 l'usure de la bille de broyage en alumine.<\/p>\n

L'autre est le processus de formation des boulets de broyage en alumine.<\/h2>\n

Les billes d'alumine de grand diam\u00e8tre adoptent g\u00e9n\u00e9ralement deux m\u00e9thodes de formage : le formage par laminage et le pressage isostatique. Les technologies de formage par roulage et de pressage isostatique ont modifi\u00e9 les autres m\u00e9thodes de formage. Les inconv\u00e9nients de la non-uniformit\u00e9, tels que les creux, les couches, etc., la taille et la forme des mati\u00e8res premi\u00e8res mentionn\u00e9es ci-dessus affecteront \u00e9galement le profilage et le pressage isostatique. Par cons\u00e9quent, l'utilisation de mati\u00e8res premi\u00e8res appropri\u00e9es aura \u00e9galement une incidence sur la compacit\u00e9 du corps en forme de boule.<\/p>\n

Apr\u00e8s s\u00e9chage, le boule d'alumine<\/a>Le processus de cuisson de la bille de broyage d'alumine vient ensuite. L'\u00e9tape de cuisson de la bille de broyage d'alumine est \u00e9galement tr\u00e8s importante. Lorsque la temp\u00e9rature de frittage appropri\u00e9e n'est pas saisie, par exemple, la temp\u00e9rature de frittage est trop \u00e9lev\u00e9e. Un temps de maintien plus \u00e9lev\u00e9 ou plus long favorisera la croissance des cristaux d'Al2O3 et augmentera la quantit\u00e9 de phase liquide, ce qui non seulement r\u00e9duira la r\u00e9sistance de la meule d'alumine, mais causera \u00e9galement la r\u00e9sistance \u00e0 l'usure la plus importante des billes d'alumine ; lorsque la temp\u00e9rature de frittage est trop \u00e9lev\u00e9e Lorsqu'elle est basse, la densit\u00e9 fritt\u00e9e sera consid\u00e9rablement r\u00e9duite, ce qui entra\u00eenera \u00e9galement une diminution de la r\u00e9sistance \u00e0 l'usure de la bille d'alumine. Lorsque la temp\u00e9rature de frittage n'est pas appropri\u00e9e, m\u00eame si la teneur en Al2O3 est \u00e9lev\u00e9e, la r\u00e9sistance \u00e0 l'usure de la bille de broyage en alumine n'est pas n\u00e9cessairement bonne. L'utilisation d'une m\u00e9thode de frittage appropri\u00e9e, telle que la cuisson rapide \u00e0 basse temp\u00e9rature, am\u00e9liore consid\u00e9rablement les avantages en termes d'\u00e9conomie d'\u00e9nergie. Dans le m\u00eame temps, cette m\u00e9thode permet \u00e9galement de contr\u00f4ler la croissance des grains des billes de broyage en alumine, am\u00e9liorant ainsi la r\u00e9sistance et la t\u00e9nacit\u00e9 des billes de broyage en alumine. Enfin, il am\u00e9liore consid\u00e9rablement la r\u00e9sistance \u00e0 l'usure des billes de broyage en alumine. Obtenir l'effet le plus id\u00e9al et am\u00e9liorer consid\u00e9rablement l'efficacit\u00e9 du travail<\/p>","protected":false},"excerpt":{"rendered":"

Alumina grinding balls are an important grinding medium in the current grinding industry market. It is also a ceramic ball that is in large demand in the grinding materials of ball mills. Alumina grinding balls are undoubtedly good in grinding and wear resistance. How to improve alumina grinding balls What about the wear resistance? First […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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