耐火材料作為工業(yè)窯爐最重要的爐襯材料，對窯爐的使用壽命、使用效果起著決定性的作用。發(fā)展至今天，耐火材料已經(jīng)由最初的冶金輔助材料變成冶金主體材料。 許許多多冶金新產(chǎn)品、新材料的開發(fā)都離陶瓷風(fēng)閥不開優(yōu)質(zhì)高檔耐火材料的配合。但是，當(dāng)今耐火材料在應(yīng)用時由于受傳統(tǒng)觀念的影響，考慮最多的還是其一般固有性質(zhì)。對 其使用中表現(xiàn)出的使用性質(zhì)還存在著認(rèn)識不夠的問題，正是存在認(rèn)識不夠的問題，才給實(shí)際使用的耐火材料帶來了一系列的問題，諸如，應(yīng)用設(shè)計不分輕重指標(biāo)一律 照搬；理化
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異型耐火磚作為一種常用的耐火材料，異型耐火磚的種類較多，按其異型磚材質(zhì)不同可分為粘土質(zhì)及高鋁質(zhì)異型耐火磚、硅質(zhì)異型耐火磚和鎂質(zhì)及鎂鋁質(zhì)異型耐火磚。1、異型粘土質(zhì)及高鋁質(zhì)耐火磚凡外形尺寸的比例在1:6以內(nèi)，具有不多于2個凹角（包括圓弧狀凹角在內(nèi)），或具有50o~70o的銳角，或帶有不多于4個溝槽（按總數(shù)計）的重量為2~15Kg的粘土質(zhì)耐火磚和重量為2~18Kg的高鋁質(zhì)耐火磚，命名為粘土質(zhì)及高鋁質(zhì)異型耐火磚。2、異型硅質(zhì)耐火磚凡外形尺寸的比例在1:5范圍以內(nèi)，具有不多于1個凹角，或具有50o~75o的銳角，或
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