发明公开
EP2987873A3 METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING A RING-SHAPED MEMBER, RING-SHAPED MEMBER, BEARING RING, ROLLING BEARING, AND METHOD FOR PRODUCING A BEARING RING
审中-公开
基本信息:
- 专利标题： METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING A RING-SHAPED MEMBER, RING-SHAPED MEMBER, BEARING RING, ROLLING BEARING, AND METHOD FOR PRODUCING A BEARING RING
- 专利标题（中）：热处理环形构件的方法，制造环形构件的方法，环形构件，轴承环，滚动轴承以及制造轴承环的方法
- 申请号：EP15176055.0 申请日：2010-07-21
- 公开(公告)号：EP2987873A3 公开(公告)日：2016-04-13
- 发明人： Yuki, Hiroshi , Ohki, Chikara , Yagita, Kazuhiro
- 申请人： NTN Corporation
- 申请人地址： 3-17, Kyomachibori 1-chome, Nishi-ku, Osaka-shi, Osaka 550-0003 JP
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： 3-17, Kyomachibori 1-chome, Nishi-ku, Osaka-shi, Osaka 550-0003 JP
- 代理机构： Bockhorni & Kollegen
- 优先权： JP2009170705 20090722; JP2009273385 20091201; JP2009273386 20091201; JP2009273387 20091201; JP2009273388 20091201
- 主分类号： C21D9/40
- IPC分类号： C21D9/40 ; C21D1/10 ; C22C38/00 ; C22C38/22 ; C22C38/44 ; F03D13/00 ; F16C19/38 ; F16C33/62 ; F16C33/64 ; C21D1/28 ; C21D7/06 ; C21D1/42 ; C22C38/02 ; C22C38/04
摘要：
Disclosed is a method for heat-treating a ring-shaped member, which makes it possible to form a quench-hardened region having a uniform annular shape in the circumferential direction, while the production costs in terms of the quenching apparatus are kept down. The method includes the following steps: a step in which a coil (21) which is disposed in such a way as to face a rolling contact surface (11) of a ring-shaped formed body (10) made of steel and which performs induction heating of the formed body (10) is rotated relative to the formed body (10) in the circumferential direction thereof, whereby an annular heating region which is heated to a temperature at or above an A 1 point is formed on the formed body (10); and a step in which the whole of the heating region is simultaneously cooled to a temperature at or below an M S point.
摘要（中）：
本发明公开了一种用于热处理环形构件的方法，其能够在淬火装置的生产成本被降低的同时在圆周方向上形成具有均匀环形形状的淬火硬化区域。 该方法包括以下步骤：将线圈（21）布置成面对由钢制成的环形成形体（10）的滚动接触表面（11）并且进行感应 通过对成形体10进行加热使其相对于成形体10的圆周方向旋转，由此在成形体10上形成被加热至A1点以上的环状的加热区域， ; 以及将整个加热区域同时冷却至MS点或其以下的温度的步骤。
公开/授权文献:
IPC结构图谱:
| C | 化学；冶金 |
| --C21 | 铁的冶金 |
| ----C21D | 改变黑色金属的物理结构；黑色或有色金属或合金热处理用的一般设备；通过脱碳、回火或其他处理使金属具有韧性 |
| ------C21D9/00 | 热处理，例如适合于特殊产品的退火、硬化、淬火、回火；所用的炉子 |
| --------C21D9/40 | .用于环；轴承座圈 |