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1957年初,我厂在电炉进行CB-08?A钢的试制工作。以前我厂生产CB-08A,虽与CB-08?A相近似,但也有根本不同之点,如锰的含量:CB-08A为0.35～0.60%,而CB-08 ?A为0.8～1.1%。由于这一点的不同,则使冶炼方法一时难以确定。进行多次的研究,认为如按CB-08A沸腾钢的冶炼方法进行,则将会因锰高给浇注造成很大困难;如以镇静钢的方法进行冶炼,则只能以铅粉进行脱氧(因为Si~0.03%),但是我厂电炉炉顶为矽砖,是否会由于矽砖顶下流造成矽超出规格。以后经苏联专家的指导试炼,决定以镇静钢冶炼方法进行。
Early 1957, I plant in the EA-CB-08? A trial of steel work. In the past, our factory produced CB-08A, although similar to CB-08? A, but there are also fundamental differences. For example, the content of manganese: CB-08A is 0.35-0.60% and CB- 08- A is 0.8-1.1% . Because of this difference, the smelting method is difficult to determine for a time. Conducted several studies, that if according to CB-08A boiling steel smelting method, it will be caused by high manganese casting great difficulties; such as the method of smelting steel smelting, you can only deoxidize the lead powder ( Because Si ~ 0.03%), but I plant the top of the furnace for the silicon brick, silicon will be caused by the top stream of silicon beyond the specifications. Later guided by the Soviet Union trial trial, decided to calm steel smelting methods.