{"id":1800,"date":"2020-05-08T06:10:32","date_gmt":"2020-05-08T06:10:32","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=1800"},"modified":"2020-08-28T06:01:44","modified_gmt":"2020-08-28T06:01:44","slug":"refractory-products","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/refractory-products\/","title":{"rendered":"Produtos refrat\u00e1rios"},"content":{"rendered":"

Os materiais refrat\u00e1rios s\u00e3o os materiais b\u00e1sicos para as ind\u00fastrias que operam em altas temperaturas. Os campos de aplica\u00e7\u00e3o dos produtos refrat\u00e1rios incluem a ind\u00fastria sider\u00fargica, a ind\u00fastria de cimento, o processo de fundi\u00e7\u00e3o de metais n\u00e3o ferrosos e a ind\u00fastria do vidro.<\/p>\n

O que s\u00e3o produtos refrat\u00e1rios?<\/h2>\n

Os refrat\u00e1rios, de acordo com as normas internacionais, referem-se a materiais n\u00e3o met\u00e1licos cujas propriedades qu\u00edmicas e f\u00edsicas s\u00e3o est\u00e1veis e que s\u00e3o utilizados em ambientes de alta temperatura. A defini\u00e7\u00e3o padr\u00e3o dos Estados Unidos para materiais refrat\u00e1rios: de acordo com suas propriedades qu\u00edmicas e f\u00edsicas, podem ser utilizados como materiais n\u00e3o met\u00e1licos para estruturas e dispositivos em temperaturas superiores a 1.000 \u00b0F. De acordo com as normas japonesas, os materiais refrat\u00e1rios s\u00e3o definidos como materiais refrat\u00e1rios moldados, utilizados em temperaturas acima de 1.500 \u00b0C, bem como materiais refrat\u00e1rios n\u00e3o moldados com temperatura m\u00e1xima de servi\u00e7o de 800 \u00b0C ou superior.<\/p>\n

A AdTech oferece filtro de espuma cer\u00e2mica refrat\u00e1ria<\/a>, pe\u00e7as refrat\u00e1rias moldadas a v\u00e1cuo<\/a>, e outros produtos refrat\u00e1rios.<\/p>\n

\"Cone
Cone de fibra refrat\u00e1ria<\/figcaption><\/figure>\n
<\/div>\n

Tipos de materiais refrat\u00e1rios<\/h2>\n

Existem v\u00e1rios m\u00e9todos de classifica\u00e7\u00e3o para produtos refrat\u00e1rios. De acordo com suas propriedades qu\u00edmicas, eles se dividem em tr\u00eas categorias: materiais refrat\u00e1rios \u00e1cidos, materiais refrat\u00e1rios alcalinos e materiais refrat\u00e1rios neutros.<\/p>\n

De acordo com a composi\u00e7\u00e3o qu\u00edmica mineral principal dos materiais refrat\u00e1rios, estes incluem materiais refrat\u00e1rios \u00e0 base de sil\u00edcio, materiais refrat\u00e1rios \u00e0 base de aluminosilicato, materiais refrat\u00e1rios compostos de carbono, materiais refrat\u00e1rios com alto teor de alum\u00ednio, materiais refrat\u00e1rios \u00e0 base de cromo, materiais refrat\u00e1rios \u00e0 base de zirc\u00f4nio, etc.<\/p>\n

De acordo com a forma de fornecimento, os materiais refrat\u00e1rios podem ser divididos em dois tipos: moldados e n\u00e3o moldados.<\/p>\n

\"Manta
Manta de fibra cer\u00e2mica<\/figcaption><\/figure>\n

De acordo com os diferentes tipos de refrat\u00e1rios, eles incluem materiais refrat\u00e1rios comuns, avan\u00e7ados, de grau superior e super-refrat\u00e1rios. Os materiais refrat\u00e1rios comuns apresentam resist\u00eancia \u00e0 temperatura de 1.580 a 1.770 \u2103; os materiais refrat\u00e1rios avan\u00e7ados podem suportar altas temperaturas de 1.770 a 2.000 \u2103, e a resist\u00eancia \u00e0 temperatura de 2.000 a 3.000 \u2103 corresponde aos refrat\u00e1rios de grau superior; aqueles com resist\u00eancia acima de 3.000 \u2103 s\u00e3o considerados super-refrat\u00e1rios.<\/p>\n

De acordo com a classifica\u00e7\u00e3o por densidade volum\u00e9trica, tamb\u00e9m \u00e9 poss\u00edvel dividi-los em refrat\u00e1rios leves e pesados.<\/p>\n

De acordo com as diferentes classifica\u00e7\u00f5es quanto \u00e0 natureza e ao tamanho, os refrat\u00e1rios podem ser divididos em tipo padr\u00e3o, tipo geral, tipo especial e tipo especial.<\/p>","protected":false},"excerpt":{"rendered":"

Refractory materials are the basic materials for high-temperature industries. 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