日本东海工业株式会社可对碳素生产过程中二次焙烧炉所用钢制匣钵进行热浸镀铝加工。加工后的匣钵,其耐热性、耐冲击性得到了大大提高。二次焙烧炉所用匣钵一般采用的是耐热钢离心铸造材料、不锈钢材料,但由于这两种材料造价甚高,一般碳素厂难以承受。而普通钢虽造价低,但制成匣钵后的使用寿命极短,有的甚至用不到半年时间就会出现变 Tokai Kogyo Co., Ltd., Japan, can hot-dip aluminum the sagger used in the secondary roaster in the carbon production process. After processing sagger, its heat resistance, impact resistance has been greatly improved. The second roaster used sagger is generally heat-resistant steel centrifugal casting material, stainless steel, but due to the high cost of these two materials, the general carbon plant unbearable. Although the cost of ordinary steel is low, the service life of a sagger is extremely short, and some even change in less than half a year