耐火材料

Care must be taken to completely seal entrance plugs(eg. at a manway)in refractory linings.

必须小心地完全封闭耐火里的进口门。

The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro-duced.

提供了廉价磷酸二氢铝的制备方法，介绍了它在耐火中的应用。

The medium and small - sized furnace stack gunning with unshaped refractory materials is a new repatching technology.

中小型高炉炉身补是采用定型耐火射法修复炉身的一项新技术。

The coatings composed by the chosen refractory is crackfree in high temperature.The castings using the coatings is free of surface defect and the surface roughness can reach 18 - S.

根据此法选出的耐火所组成的涂在高温急热时开裂，浇注出的铸件表面无缺陷，表面粗糙度达18-S。