METHOD FOR PREPARING STAINLESS STEEL COATED STEEL WIRE COMPOSITE WIRE

WIPO Patent Application WO/2021/004082

A1

A stainless steel coated steel wire composite wire, comprising: (1) according to the requirements of a wire rod to be produced, selecting core material carbon steel and a stainless steel pipe that have an appropriate size, wherein the ratio of the radius of the carbon steel to the wall thickness of the stainless steel pipe is equal to 0.1-100; derusting and cleaning the surface of the carbon steel and the inner side of the stainless steel pipe; embedding the carbon steel into the stainless steel pipe, and welding and sealing both ends of the stainless steel pipe by means of vacuum welding technology; (2) heating the prepared blank to 900-1,300°C, and maintaining the temperature for 15 minutes or more; then, immediately rolling the blank into a wire rod having a diameter of 3-15 mm; and (3) performing austenization, brazing bath quenching heat treatment, and multi-pass drawing on the wire rod to prepare a stainless steel coated steel wire. The composite wire prepared by the method has better uniformity along a length direction, and the interface bonding between the core material and a stainless steel outer layer is more effective.

LIU LIHUA (CN)
ZHENG RUI (CN)
ZHU WEIJUN (CN)
ZHANG CHUNLEI (CN)
ZHU QIFENG (CN)
WU JIANFENG (CN)
HOU WENDA (CN)
XU SONGHUA (CN)

PCT/CN2020/079186

January 14, 2021

March 13, 2020

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FASTEN HONGSHENG GROUP CO LTD (CN)

B21C37/04

CN110449483A	2019-11-15
CN107933013A	2018-04-20
CN105710154A	2016-06-29
CN103817167A	2014-05-28
CN102441222A	2012-05-09
CN106448932A	2017-02-22
JP2016153140A	2016-08-25
KR101417999B1	2014-08-06
JPS62259612A	1987-11-12

JIANGYIN QING ZHOU PATENT AGENCY (GENERAL PARTNERSHIP) (CN)

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