{"id":6723,"date":"2021-04-04T16:02:22","date_gmt":"2021-04-04T16:02:22","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6723"},"modified":"2021-04-15T07:24:04","modified_gmt":"2021-04-15T07:24:04","slug":"dois-factores-que-afectam-a-resistencia-ao-desgaste-dos-revestimentos-ceramicos-resistentes-ao-desgaste","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/pt\/dois-factores-que-afectam-a-resistencia-ao-desgaste-dos-revestimentos-ceramicos-resistentes-ao-desgaste\/","title":{"rendered":"Dois factores que afectam a resist\u00eancia ao desgaste dos revestimentos cer\u00e2micos resistentes ao desgaste"},"content":{"rendered":"

Cer\u00e2mica resistente ao desgaste<\/a> (revestimento adesivo de resina ep\u00f3xi) tem uma excelente resist\u00eancia ao desgaste e \u00e9 amplamente utilizado na prote\u00e7\u00e3o de materiais e na repara\u00e7\u00e3o de pe\u00e7as, tais como riscos nas pe\u00e7as, defeitos de fundi\u00e7\u00e3o, fissuras externas, desgaste de pe\u00e7as e fugas de pe\u00e7as. Como o trabalho de repara\u00e7\u00e3o \u00e9 simples, eficiente e economicamente vi\u00e1vel, este m\u00e9todo de processo tem recebido cada vez mais aten\u00e7\u00e3o.<\/p>\n

Quais s\u00e3o os factores que afectam a resist\u00eancia ao desgaste dos revestimentos cer\u00e2micos resistentes ao desgaste?<\/strong><\/span><\/p>\n

1. A quantidade de p\u00f3 adicionada:<\/h2>\n

A resist\u00eancia \u00e0 abras\u00e3o do revestimento \u00e9 principalmente p\u00f3 cer\u00e2mico de alumina<\/a>. Quando o p\u00f3 \u00e9 adicionado numa pequena quantidade, h\u00e1 menos pontos de apoio para suportar a abras\u00e3o e o revestimento n\u00e3o pode ser protegido eficazmente. Com o aumento da quantidade de p\u00f3 adicionado, a \u00e1rea de cer\u00e2mica sujeita a desgaste aumenta, o revestimento \u00e9 protegido e a perda de peso devido ao desgaste \u00e9 reduzida. Quando o teor de p\u00f3 aumenta at\u00e9 uma determinada quantidade, a quantidade de desgaste atinge um n\u00edvel bastante reduzido. Quando o p\u00f3 excede uma certa quantidade, a ades\u00e3o do adesivo ao p\u00f3 cer\u00e2mico n\u00e3o \u00e9 suficiente. Quando sujeitos \u00e0 for\u00e7a de fric\u00e7\u00e3o, devido \u00e0 insuficiente resist\u00eancia ao cisalhamento, alguns p\u00f3s cer\u00e2micos caem do gr\u00e3o inteiro, pelo que n\u00e3o podem desempenhar o papel de anti-desgaste, e a perda de peso \u00e9 grave. Aumentada, a resist\u00eancia ao desgaste do revestimento diminui.<\/p>\n

2. A influ\u00eancia da dimens\u00e3o das part\u00edculas de p\u00f3 na resist\u00eancia ao desgaste<\/h2>\n

Quando as part\u00edculas de p\u00f3 s\u00e3o pequenas, a \u00e1rea de contacto entre as part\u00edculas e o adesivo \u00e9 pequena, e a for\u00e7a de liga\u00e7\u00e3o n\u00e3o \u00e9 suficientemente grande. As part\u00edculas s\u00e3o f\u00e1ceis de cair durante o processo de abras\u00e3o. \u00c0 medida que as part\u00edculas de p\u00f3 aumentam, a \u00e1rea de liga\u00e7\u00e3o aumenta, a superf\u00edcie de liga\u00e7\u00e3o separa-se e o adesivo deforma-se e racha. A tend\u00eancia \u00e9 pequena. Quando o tamanho das part\u00edculas do p\u00f3 atinge uma determinada quantidade, a quantidade de abras\u00e3o diminui gradualmente. Acima de um determinado tamanho, os defeitos de liga\u00e7\u00e3o, como o aumento dos poros, diminuir\u00e3o a for\u00e7a de liga\u00e7\u00e3o. Durante o processo de desgaste, as part\u00edculas grandes de cer\u00e2mica caem e a quantidade de desgaste aumenta drasticamente. A camada adesiva exposta n\u00e3o ser\u00e1 protegida e desgastar-se-\u00e1. Por isso, as part\u00edculas de cer\u00e2mica tamb\u00e9m ter\u00e3o um grande impacto na resist\u00eancia ao desgaste, demasiado grandes ou pequenas n\u00e3o s\u00e3o adequadas.<\/p>","protected":false},"excerpt":{"rendered":"

Wear-resistant ceramic coating (epoxy resin adhesive coating) has excellent wear resistance and is widely used in material protection and parts repair, such as parts scratches, casting defects, external cracks, part wear, and part leakage. Because the repair work is simple, efficient, and economically feasible, this process method has received increasing attention. What are the factors 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