摘要
穿孔-减径法生产40Cr钢钎具套管料生产工艺与原穿孔直接生产套管料工艺相比。穿孔-减径法生产成本低,产品质量好,成材率高。
The piercing-reducing process of 40Cr steer pipes for drill rod casing has such advantages as lower cost, higher quality and higher yield as compared with the original process having Piercing without reducing.
出处
《钢管》
CAS
1991年第3期21-23,共3页
Steel Pipe
关键词
钢钎具套管科
穿孔-减径法
工艺
steel pipe for drill rod casing piercing-reducing process process improvement
