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在切利亚宾斯克锻压厂的锻造车间对加热时坯料的烧损和脱碳进行了对比研究。试验方法如下:从同一炉号的钢材上取下坯料,打上记号,清理毛刺并称出重量。其中一些坯料要确定它们在供货状态下的冶金氧化皮重量和脱碳层深度。其余的坯料则分三种情况进行加热:(1)按正常规范(按工艺,尽可能使模锻设备不间断地工作);(2)短时间的停顿(30～50分钟);(3)重复加热。在机械化少氧化加热炉中,重复加热是按下述方式进行的:按正常规范加热坯料,用机械化装置取出
In the forging shop at Chelyabinsk Forging Plant, the burning and decarburization of the billet during heating were compared. Test methods are as follows: Remove the blanks from the same heat of the steel, mark, clean the burr and weigh. Some of these blanks are required to determine their metallurgical scale weight and decarburized depth at the time of delivery. The rest of the billets are heated in three cases: (1) according to normal specifications (according to the process, as far as possible to die forging equipment work continuously); (2) a short pause (30 to 50 minutes); (3) Repeat heating. In the mechanization of less oxidation furnace, repeated heating is carried out as follows: According to the normal heating of the billet, the mechanized device removed