发明公开
EP2987873A2 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）：METHOD FOR环形元件，METHOD用于产生环形元件，环形元件LAGERRING，球轴承及制造方法轴承环热处理
- 申请号：EP15176055.0 申请日：2010-07-21
- 公开(公告)号：EP2987873A2 公开(公告)日：2016-02-24
- 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）：
公开了一种用于热处理方法的环状构件，这使得能够形成具有在圆周方向上均匀的环形设计形状的淬火硬化区域，而在淬火装置方面的生产成本保持下来。 该方法包括以下步骤：在其中，被在寻求一种方法，以面对由钢制成的环形形成体（10）的滚动接触表面（11），其设置和有线圈（21）的所有执行感应步骤 所形成的主体（10）的加热是相对于所形成的主体（10）在周向旋转体，从而在环形设计加热区域的所有被加热到的温度等于或高于在A 1点上所形成的体而形成（10 ）; 和一个步骤，其中在整个加热区域的同时在等于或低于在米每秒点冷却到的温度。
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 |