发明名称 |
Method of heat-treating a rack bar and the same |
摘要 |
A method of heat-treating a rack bar includes a step of continuously conveying a rack bar provided with a rack teeth portion and a ball screw portion by a quenching means, and a step of sequentially applying a quenching treatment to each circumferential surface of the rack teeth portion and the ball screw portion. The quenching treatment is preferably and sequentially applied to each entire circumferential surface of the rack teeth portion and the ball screw portion.
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申请公布号 |
US2004007801(A1) |
申请公布日期 |
2004.01.15 |
申请号 |
US20030455430 |
申请日期 |
2003.06.06 |
申请人 |
TOYODA KOKI KABUSHIKI KAISHA |
发明人 |
FUKUMURA KENICHI |
分类号 |
B62D3/12;C21D1/10;C21D9/32;(IPC1-7):C21D9/32;F16H1/04 |
主分类号 |
B62D3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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