CONTINUOUS SPHEROIDIZING TREATMENT OF STEEL WIRE
- 申请公布号：
- JPS59113125(A)
- 申请号：
- JP19820223607
- 申请日期：
- 1982.12.20
- 申请公布日期：
- 1984.06.29
- 申请人：
- SUMITOMO KINZOKU KOGYO KK
- 发明人：
- AIHARA KENJI;SUDOU CHIYUUZOU;ASAKAWA MOTOO;NAGAI HIROSHI;HAGITA HEIJI
- 分类号：
- C21D1/26;C21D9/52
- 主分类号：
- C21D1/26
- 摘要：
- PURPOSE:To perform a spheroidizing treatment of a hot rolled wire rod at a low cost with excellent productivity by subjecting on line the wire rod to cold drawing to a prescribed wire diameter then repeatedly to heating and cooling at a specific temp. in plural cycles and to allowing the same to cool. CONSTITUTION:A hot rolled steel rod 10 drawn from a payoff stand 1-1 passes a straightener 1-2 and a descaler 1-3 and is lubricated by passing the dies D1, D2 for press sticking lubricant in a powder lubricant tank 1-4, whereafter the wire rod passes drawing die D3 by which it is finished to a prescribed wire diameter. The wire enters an annealing stage through a surface flaw detector 1-5, a surface flaw remover 1-6 and a capstan 1-7 for drawing. The process of heating a steel wire 10 to Ae1-(Ae1+150 deg.C) by heating 2-1-2-3 and controlled coolers 2-4-2-6 then cooling the same to Ae1-(Ae1-150 deg.C) is repeated in said stage. The carbide in the texture of the wire rod is spheroidized and the wire is coiled in a heat holding furnace 2-7.
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