发明名称 |
PIN FOR RAILWAY VEHICLES AND METHOD FOR MANUFACTURING THE SAME |
摘要 |
PURPOSE: A method for manufacturing a pin for railway vehicles is provided which has superior durability, external abrasion, maintenance and repairing properties by passing through cutting process using a material of carbon steel rolled round bar for machine structural use as a pin for railway vehicles that is assembled and mounted for using in fixing and rotational movement for driving and breaking of all railway vehicles. CONSTITUTION: In manufacturing a pin using carbon steel rolled round bar for machine structural use, the pin for railway vehicles and a method for manufacturing the same comprise the steps of cutting a rolled bar (1); quenching and tempering the cut rolled bar (2); high frequency heat treating the body part of the rolled bar (3); heating the head part of the rolled bar (4); forging the heated head part using a press (5); removing slag from the forged head part (6); finishing the body part of the rolled bar (7); drilling the body part of the rolled bar (8); and tempering the body part of the rolled bar (9).
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申请公布号 |
KR20010069588(A) |
申请公布日期 |
2001.07.25 |
申请号 |
KR20010020983 |
申请日期 |
2001.04.19 |
申请人 |
SAMHO HIGH PRECISION CO., LTD. |
发明人 |
SEO, GWANG SIK |
分类号 |
B21K7/12;(IPC1-7):B21K7/12 |
主分类号 |
B21K7/12 |
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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