Research on Evolution of Void Defects in Heavy Forgings during Upsetting Process 大锻件镦粗成形中内部空洞型缺陷的演化规律研究
STUDY ON PRINCIPLE AND TECHNOLOGY OF UPSET-EXTRUSION FORMING SPUR GEAR BY KINETIC FORMING DIE; Research on Evolution of Void Defects in Heavy Forgings during Upsetting Process 浮动凹模镦挤直齿圆柱齿轮成形原理及工艺研究大锻件镦粗成形中内部空洞型缺陷的演化规律研究
Based on analysis on the reasons for the defects in large sized forgings during steel making, heat treatment and, the preventive measures were formulated. 分析了锻件生产过程中,在锻造、热处理以及炼钢中经常产生缺陷的原因,并提出了预防措施。
Scanning Electron Microscope Analysis for Continuity defects in Rotor Forgings 转子锻件中连续性缺陷的扫描电镜分析
Ultrasonic testing shows on flake defects in theheavy forgings of ESR steel without any diffusion annealing. 未经扩氢退火的电渣钢大锻件经超声波检验,未发现白点缺陷。
It has been proved that the process could effectively control the forging defects in the heavy tube plate forgings such as the inclusion cracks, etc, meanwhile the rate of the finished products has been greatly improved. 该工艺可有效控制大型管板锻件中夹杂性裂纹等锻造缺陷,大大提高饼类锻件的成品率。
Because of huge deformation of turbine blade in the process of forging, the defects, such as folds and cracks, appear in blade forgings. 在叶片锻造过程中,由于变形量大,锻出的叶片会出现如褶皱、裂纹这样的缺陷。
Study on Mechanism of Defects Originated from Inclusions in Processes of Heavy Forgings 大型锻件内部夹杂性缺陷产生机理研究