发明名称
摘要 PURPOSE:To produce a small-diameter wire rod having no surface flaws by passing the wire rod first at a low speed to a tandem rolling mill group disposed with plural caliber rolls around the pass line and coiling the front end part on a coiler, then rolling the wire rod at a high speed. CONSTITUTION:The tandem rolling mill group 5 disposed with the plural caliber rolls 11-14 around the pass line to form a circular caliber 17 is provided and the coiler 6 is disposed to the outlet side of the rolling mill group 5. The wire rod W guided from an un-coiler 1 to an inlet guide 2 is heated to a prescribed temp. in a high-frequency heating furnace 3. The heated wire rod W is passed through the rolling mill group 5 first at the low speed and the front end part thereof is coiled on the coiler 6. A motor 4 and the coiler 6 are then operated at the high speed to roll the wire rod W and to coil the same with the coiler 6. The good-quality small-diameter wire rod having no surface flaws is thereby produced with high production efficiency.
申请公布号 JPH0785801(B2) 申请公布日期 1995.09.20
申请号 JP19860309561 申请日期 1986.12.29
申请人 发明人
分类号 B21B1/16;B21B1/18;B21B13/12;B21B45/00;(IPC1-7):B21B1/16 主分类号 B21B1/16
代理机构 代理人
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