Title:
METHOD FOR ROLLING METAL WIRE OR ROD WITH ASSISTANCE OF COMBINED STATIC MAGNETIC FIELD
Document Type and Number:
WIPO Patent Application WO/2017/028552
Kind Code:
A1
Abstract:
A method for rolling a metal wire or rod with the assistance of a combined static magnetic field. A combined static magnetic field is applied before and during extrusion and pulling of a metal wire or rod. A specific method is: providing, in a moving direction of a metal wire or rod, a gradient static magnetic field generated by a combination of a permanent magnet (2, 3, 4, 8, 11) and a steady electromagnet (5, 9); and after a raw material (1) for rolling the metal wire or rod is processed by the gradient static magnetic field, performing rolling extrusion and pulling on the material. For multiple passes of rolling extrusion and pulling, the static magnetic field processing is performed before each pass of rolling. By means of the method, the deformation resistance of the material is significantly reduced, defects of rolling are decreased, the size accuracy and uniformity of finished products is high, and the mechanical properties, especially strength and toughness, of the material are enhanced, thereby realizing the reinforcement of both the strength and toughness of the material.
Inventors:
WANG HONGMING (CN)
LI GUIRONG (CN)
LI GUIRONG (CN)
Application Number:
PCT/CN2016/080088
Publication Date:
February 23, 2017
Filing Date:
April 23, 2016
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
B21B1/18; B21B9/00
Foreign References:
| CN105032926A | 2015-11-11 | |||
| JPS61130475A | 1986-06-18 | |||
| CN1135383A | 1996-11-13 | |||
| CN102179404A | 2011-09-14 | |||
| CN103643190A | 2014-03-19 | |||
| CN102211153A | 2011-10-12 | |||
| US4044584A | 1977-08-30 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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