成批生产的石油、天然气井及爆破孔钻井用牙轮钻头的零件,每日在霍克罗夫特(Holcroft)公司设计制造的两条连续炉生产线上进行渗炭处理。对成批生产的钻头高质量的要求,是促使我们建立新的生产设备的主要因素。该工厂装备有霍克罗夫特公司设计制造的连续渗碳设备。它由具有可变周期控制的两台三排连续推进式气体加热渗炭炉组成。每个炉子都可以同时进行三种不同的渗碳工序,广泛地适用于史 Batch production of parts for oil and gas wells and roller cone bits for blasthole drilling is percolated on two continuous furnace lines designed and manufactured by Holcroft. The high quality of drill bits for mass production is a major factor driving us to build new production facilities. The facility is equipped with continuous carburizing equipment designed and manufactured by HocRout. It consists of two three-row continuously-propelled gas-heated charcoal furnace with variable cycle control. Each furnace can be carried out simultaneously with three different carburizing processes, widely used in history