Title:
LIME WIRE DRAWING PROCESS FOR STEEL WIRES
Document Type and Number:
WIPO Patent Application WO/2021/217951
Kind Code:
A1
Abstract:
A lime wire drawing process for steel wires, the production process being as follows: step 1, wire coiling; step 2, pickling; step 3, coating with lime; step 4, heat treatment; step 5, pickling; step 6, phosphorus saponification; and step 7, finished product wire drawing. According to the lime wire drawing process for steel wires, first, oxide layers on the surface layers of the wires are removed by means of pickling, so that the area of the wires entering a mold is increased. Then a mixed lime liquid is used for coating, so that the lubricating effect of the wires entering the drawing mold may be effectively improved, and the problem in which the wires are broken during primary drawing is solved. Meanwhile, a mixed lime solution may effectively prolong the service life of the mold, reduce the loss and improve the production efficiency for wire.
Inventors:
ZHANG DINGNAN (CN)
Application Number:
PCT/CN2020/108796
Publication Date:
November 04, 2021
Filing Date:
August 13, 2020
Export Citation:
Assignee:
SUZHOU NEW BEST WIRE TECH CO LTD (CN)
International Classes:
B21C37/04; B21C9/02; C23G3/02
Foreign References:
| CN111496005A | 2020-08-07 | |||
| CN102861782A | 2013-01-09 | |||
| CN106238495A | 2016-12-21 | |||
| CN109821922A | 2019-05-31 | |||
| CN105344724A | 2016-02-24 | |||
| CN104630633A | 2015-05-20 | |||
| GB1320133A | 1973-06-13 | |||
| US4553416A | 1985-11-19 |
Attorney, Agent or Firm:
SUZHOU COMPASS PATENT AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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