论文部分内容阅读
本溪钢铁公司南芬露天铁矿从国外进口三台60 RⅡ型牙轮钻机,在半年多的时间里把随钻机带来的钻头用完了。要想继续生产就得向国外买钻头。我们遵照毛主席关于“独立自主、自力更生”的教导,在校党委的领导下,组成工人、干部、工程技术人员和教师三结合的攻关组。经反复研究,提出了三种方案:以铸代锻;铸锻结合;锻造。分析结果,认为铸锻结合工艺复杂。锻造缺乏设备,又无制模能力。根据我厂现有条件,只有采取以铸代锻的方案,并选用压力结晶铸造法。
Benxi Iron and Steel Company Nanfen open-pit iron ore imported from abroad, three sets of 60 R Ⅱ-type roller rig, in more than six months with the drilling machine brought drill run out. In order to continue production you have to buy a drill bit from abroad. In accordance with Chairman Mao’s teachings on “independence and self-reliance,” we formed a tripartite task force under the leadership of the school party committee, which consisted of workers, cadres, engineering technicians and teachers. After repeated studies, put forward three options: forging instead of forging; combination of casting and forging; forging. Analysis results, that combination of casting and forging complex process. Forging a lack of equipment, but also no moldability. According to the existing conditions of our factory, only to take forging forging program, and the choice of pressure crystallization casting method.