发明名称 |
ARTICLE THERMIQUEMENT TRAITE, ET PROCEDE ET MACHINE DESTINES A SA PRODUCTION |
摘要 |
<p>An article is hardened or tempered in a localized zone. Where the article is a thread-forming device the zone is that part of its thread that does the thread-forming in the workpiece. The hardness of the remainder of the body of the article is left unchanged. The localized hardening is carried out by a method that includes high frequency induction heating only of the zone followed by quenching of the zone whereby the hardened zone is a skin of predetermined depth. A machine for making articles in accordance with the method comprises means for delivering the articles in succession to an induction heating element, a mechanism for advancing the articles through the heating element for progressive heating of the surface of the article in the localized zone to a predetermined depth, a quenching manifold for applying a spray of quenching liquid to the heated article, and means for removing the heated articles from the heating element and conveying them to the quenching manifold.</p> |
申请公布号 |
BE780527(A1) |
申请公布日期 |
1972.07.03 |
申请号 |
BE19720780527 |
申请日期 |
1972.03.10 |
申请人 |
RESEARCH ENGINEERING + MANUFACTURING INC., 459, MOUNT PLEASANTSTREET, NEW BEDFORD, MASSACHUSETTS 02742 (E.U.A.), |
发明人 |
C.H. WARDWELL;N.L. HOLCOMB. |
分类号 |
C21D1/42;C21D9/00;(IPC1-7):21D/;23G/ |
主分类号 |
C21D1/42 |
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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