{"id":85134,"date":"2025-04-25T15:25:42","date_gmt":"2025-04-25T07:25:42","guid":{"rendered":"https:\/\/keruiref.com\/?p=85134"},"modified":"2025-05-29T11:32:47","modified_gmt":"2025-05-29T03:32:47","slug":"porta-de-correr-refractaria","status":"publish","type":"post","link":"https:\/\/keruiref.com\/pt\/porta-de-correr-refractaria\/","title":{"rendered":"Refrat\u00e1rio de porta de correr"},"content":{"rendered":"

Tipo comum de refrat\u00e1rio de porta de correr<\/strong><\/p>\n

Porta de correr em alum\u00ednio de alta qualidade:<\/strong> A alumina \u00e9 fabricada principalmente a partir de mat\u00e9rias-primas com elevado teor de alum\u00ednio, com elevada refractariedade, resist\u00eancia mec\u00e2nica e resist\u00eancia \u00e0 corros\u00e3o. O seu elevado teor de alumina pode suportar temperaturas elevadas e a eros\u00e3o do a\u00e7o fundido, sendo adequado para algumas ocasi\u00f5es com elevados requisitos de desempenho refrat\u00e1rio, mas a estabilidade ao choque t\u00e9rmico \u00e9 relativamente fraca.<\/p>\n

Alum\u00ednio-carbono Porta de correr:<\/strong> incluindo corredi\u00e7a de alum\u00ednio-carbono n\u00e3o queimada e corredi\u00e7a de alum\u00ednio-carbono queimada. Para melhorar a resist\u00eancia \u00e0 corros\u00e3o e a estabilidade ao choque t\u00e9rmico do deslizamento de alum\u00ednio-carbono n\u00e3o queimado, s\u00e3o adicionados materiais sint\u00e9ticos de mulita, andaluzita e carboneto de sil\u00edcio ao material granular, e corindo e carboneto de sil\u00edcio s\u00e3o adicionados \u00e0 matriz, mas existem problemas como baixa resist\u00eancia a quente, desgaste severo da superf\u00edcie deslizante e fraca resist\u00eancia \u00e0 fissura\u00e7\u00e3o. Os tijolos de alum\u00ednio-carbono queimados t\u00eam baixa resist\u00eancia ao choque t\u00e9rmico e n\u00e3o podem ser utilizados continuamente durante muitas vezes. Para al\u00e9m disso, o carbono \u00e9 facilmente oxidado durante a utiliza\u00e7\u00e3o, e a resist\u00eancia \u00e0 corros\u00e3o \u00e9 reduzida.<\/p>\n

\"\"<\/p>\n

Alum\u00ednio-zirc\u00f3nio-carbono Porta de correr:<\/strong> desenvolvido com base no skate de alum\u00ednio-carbono cozido, utilizando mat\u00e9rias-primas de baixa taxa de expans\u00e3o Al2O3-SiO2-ZrO2 para produzir materiais refract\u00e1rios com baddeleyite, mullite, corindo, etc. como fase cristalina principal e liga\u00e7\u00e3o de carbono como carater\u00edstica. Tem um desempenho e aplicabilidade bastante bons, mas a fissura\u00e7\u00e3o e o desgaste da superf\u00edcie de deslizamento durante a utiliza\u00e7\u00e3o repetida s\u00e3o a chave para restringir a melhoria da sua vida \u00fatil, e a sua resist\u00eancia \u00e0 eros\u00e3o por c\u00e1lcio \u00e9 fraca quando se funde a\u00e7o tratado com c\u00e1lcio.<\/p>\n

Magn\u00e9sio-carbono Porta de correr:<\/strong> Utilizado pela primeira vez na Europa, o \u00f3xido de magn\u00e9sio tem uma boa resist\u00eancia \u00e0s tens\u00f5es mec\u00e2nicas e \u00e0 eros\u00e3o qu\u00edmica, o que pode satisfazer, em certa medida, os requisitos da fundi\u00e7\u00e3o de a\u00e7o tratado com c\u00e1lcio e de a\u00e7o com elevado teor de oxig\u00e9nio. No entanto, o coeficiente de expans\u00e3o t\u00e9rmica do skate de \u00f3xido de magn\u00e9sio \u00e9 grande, e a fragmenta\u00e7\u00e3o t\u00e9rmica \u00e9 propensa a ocorrer ao fundir a\u00e7o, e a resist\u00eancia ao choque t\u00e9rmico precisa de ser melhorada.<\/p>\n

Carbono espin\u00e9lio Slide Gate:<\/strong> O espin\u00e9lio de alum\u00ednio e magn\u00e9sio \u00e9 utilizado como fase cristalina principal e \u00e9 caracterizado por uma combina\u00e7\u00e3o composta de cer\u00e2mica e carbono. O coeficiente de expans\u00e3o t\u00e9rmica e o m\u00f3dulo de elasticidade do material de espin\u00e9lio de alum\u00ednio e magn\u00e9sio s\u00e3o menores do que os do \u00f3xido de magn\u00e9sio, e a sua resist\u00eancia ao choque t\u00e9rmico \u00e9 mais forte do que a do \u00f3xido de magn\u00e9sio. No entanto, os materiais de espin\u00e9lio reagem lentamente com o c\u00e1lcio no a\u00e7o para produzir produtos de baixa fus\u00e3o que afectam a sua vida \u00fatil.<\/p>\n

Porta de correr em zirc\u00f3nio:<\/strong> Os skates de zirc\u00f3nio formados por prensagem a quente t\u00eam as carater\u00edsticas de elevada resist\u00eancia a altas temperaturas, baixa porosidade aparente e pequeno di\u00e2metro dos poros. T\u00eam boa resist\u00eancia \u00e0 corros\u00e3o do a\u00e7o fundido quando utilizados em tundishes. No entanto, devido ao custo e a outras raz\u00f5es, a ind\u00fastria utiliza geralmente an\u00e9is de zirc\u00f3nio incorporados em torno dos orif\u00edcios de fundi\u00e7\u00e3o dos skates de alum\u00ednio-carbono para fazer skates compostos.<\/p>\n

KERUI Refract\u00e1rios<\/strong><\/a> fornece diferentes tipos de port\u00f5es de correr, bocais e blocos de po\u00e7os. Se tiver quaisquer necessidades ou quest\u00f5es, contacte-nos.<\/p>","protected":false},"excerpt":{"rendered":"Common Type of Slide Gate Refractory High-aluminum Slide Gate: mainly made of high-aluminum raw materials, with high refractoriness, mechanical strength and corrosion resistance. Its high alumina content can withstand high temperatures and erosion of molten steel, and is suitable for some occasions with high requirements … Ler mais<\/a>","protected":false},"author":1,"featured_media":85135,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-85134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","no-featured-image-padding","resize-featured-image"],"yoast_head":"\nSlide Gate Refractory - Your Refractory Bricks, Castables Manufacturer For Kiln | Kerui Refractory\u00ae Official Website<\/title>\n<meta name=\"description\" content=\"Slide Gate Refractory is applied in steel industry for controlling molten steel flow in continuous casting.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/keruiref.com\/pt\/porta-de-correr-refractaria\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/keruiref.com\/slide-gate-refractory\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/keruiref.com\/slide-gate-refractory\/\"},\"author\":{\"name\":\"kerui2023\",\"@id\":\"https:\/\/keruiref.com\/el\/#\/schema\/person\/b7f0913f3cbfd2d5bc35d96d885a2525\"},\"headline\":\"Slide Gate Refractory\",\"datePublished\":\"2025-04-25T07:25:42+00:00\",\"dateModified\":\"2025-05-29T03:32:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/keruiref.com\/slide-gate-refractory\/\"},\"wordCount\":458,\"publisher\":{\"@id\":\"https:\/\/keruiref.com\/el\/#organization\"},\"image\":{\"@id\":\"https:\/\/keruiref.com\/slide-gate-refractory\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/keruiref.com\/wp-content\/uploads\/2025\/04\/slide-gate-refractory-kerui.webp\",\"articleSection\":[\"Industry News\"],\"inLanguage\":\"pt-PT\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/keruiref.com\/slide-gate-refractory\/\",\"url\":\"https:\/\/keruiref.com\/slide-gate-refractory\/\",\"name\":\"Slide Gate Refractory - 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