Improvement of Tube-end Pointing Process of CPE Pipe Plant and Operation Effectiveness

Although the CPE pipe-rolling process is in fact a well-modified push bench process,it has disadvantages as rather limited length range of finished tubes,low metal yield and small production capacity,etc. Based on analysis of characteristics of the CPE plant's tube-end pointing process,some proposals are put forward by the Hanyang Steel Works,Wuhan Iron and Steel (Group) Corporation to reduce the metal loss of the plant,including improvement of the tube-end pointing process and taking non-"cup bottom"-cutting tech-nique. The innovative technology has been applied to the Φ114 mm CPE plant of the company,resulting in satisfactory effectiveness.