我厂热处理用的炉子有H—75,H—30和KO—30,炉底板的耗用量较大。有条件最好用耐热钢,但我厂没有炼钢炉,只好采用耐热铸铁作炉底板。在H—75和H—30这两种炉子上用的结果表明:工作温度在850~900℃的情况下,两班生产一付这种炉底板可以用四个月到半年,这比用耐热钢的炉底板寿命是短一些,但对中小工厂,特别是没有炼钢炉的工厂是很适用的。现在把我们生产这种炉底板的情况介绍如下: I plant heat treatment furnace with H-75, H-30 and KO-30, furnace floor consumption of larger. The best conditions with heat-resistant steel, but I did not plant steel furnace, had to use heat-resistant cast iron furnace floor. The results for the two furnaces, H-75 and H-30, show that with two operating temperatures of 850-900 ° C, the production of one pair of such furnace floor plates can take four months to six months, Hot steel furnace floor life is shorter, but small and medium-sized factories, especially in the absence of steel furnace factory is very applicable. Now we introduce the production of this furnace floor as follows: