基本信息:
- 专利标题： MANUFACTURE OF ROTOR SHAFT
- 申请号：JP7016680 申请日：1980-05-28
- 公开(公告)号：JPS56166327A 公开(公告)日：1981-12-21
- 发明人： KURIYAMA MITSUO , SHIGA MASAO , KIRIHARA SEISHIN , HATAYA FUMIO , SASAKI RIYOUICHI , HIRAGA MAKOTO , TAN TOSHIMI , MIZOI TAKAO , KUNO KATSUKUNI , NINOMIYA SATOSHI
- 申请人： HITACHI LTD
- 专利权人： HITACHI LTD
- 当前专利权人： HITACHI LTD
- 优先权： JP7016680 1980-05-28
- 主分类号： B21K3/00
- IPC分类号： B21K3/00 ; C21D9/28
摘要：
PURPOSE:To remarkably reduce the bending of a rotor shaft due to aging by rotating the shaft during keeping with heating and rapid cooling in a process of hardening the shaft. CONSTITUTION:In a process of hardening rotor shaft, the shaft is rotated continuously or intermittently during keeping with heating for hardening to make the heating temp. on the same circumference uniform, thereby eliminating the difference in the creep characteristics at least on the same circumference. During rapid cooling, the shaft is rotated similarly. The cooling is accomplished by forced air cooling, spray cooling, spray quenching or oil quenching. The preferred number of rotations is about 0.5-5rpm. The rotor shaft is rotated similarly during keeping with heating in a tempering process after the hardening.
公开/授权文献:
- JPS6331222Y2 公开/授权日：1988-08-22
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21K | 锻件或压制件的制造，如马蹄铁、铆钉、螺栓、轮子 |
| ------B21K3/00 | 发动机或不包含在B21K1/00组内的类似机器零件的制造；螺旋桨或类似机件的制造 |