MANUFACTURE OF TAPER ROD

更新时间:2023-07-16 01:30:15 阅读: 评论:0

饭后运动减肥操专利名称:MANUFACTURE OF TAPER ROD
山水墨画
发明人:MARUKAWA NOBUAKI,KATSUBE KOZO 申请号:JP4730185
申请日:19850308
公开号:JPS61206518A
公开日:
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摘要:PURPOSE:To improve working accuracy and material yield by stretching a metallic stock, while increasing the speed of the stock in heating from a fixed speed, and decreasing further its speed from a specific part before the completion of its work in a pattern of straight or curved line. CONSTITUTION:A constant-speed roll device 2, for nding a metallic stock 1 to the arrow three direction at a fixed speed while holding the stock 1, a heating device 8 and a cooling device 11 are arranged in ries. A length meter 7A is arranged at the outlet side of the device 11, and a variable-speed tension roll device 18 is arranged at its downstream side. The heated stock 1 is stretched and tapered while increasing its speed from the constant-speed nding condition of roll-device 2 along a quadratic curve through the device 18. The deceleration condition of a pattern of straight or curved line, is provided to the tangential direction of a pattern of quadratic curve, from a part of 5-20% before the completion of this work. In this way, the working accuracy is improved, and the yield is also improved becau cutting work is eliminated.
申请人:KOBE STEEL LTD
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