Title:
STEEL CORD AND PRODUCTION METHOD THEREFOR, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2024/045308
Kind Code:
A1
Abstract:
A steel cord and a production method therefor, and a tire. The steel cord is formed by twisting a plurality of steel wires, and at least one of the steel wires is deformed to make the cord have an uneven surface appearance, which is positioned at the same position of the cord in an axial direction, wherein the same position refers to one position or two symmetrical positions, so that the cord has a long diameter (D1) and a short diameter (D2) with unequal values on a cross section. The uneven surface appearance of the cord is positioned at the same position of the cord in the axial direction, and breaks the uniform supporting state of the steel wires of the cord in a circumferential direction, and thus it is difficult for the cord to maintain an original circular cross section shape in a subsequent stress-relieving process of the cord, such that a cord having a flat structure can be produced. The flat cord is produced by means of the uneven surface appearance, and therefore the production process is controllable and convenient; and the rubber penetration rate of the cord is also increased by always arranging the uneven surface appearance on one or both sides of the cord.
Inventors:
ZHOU ZHISONG (CN)
KOU SHOUPENG (CN)
YAO LILI (CN)
YAO HAIDONG (CN)
KE ZENGGUANG (CN)
KOU SHOUPENG (CN)
YAO LILI (CN)
YAO HAIDONG (CN)
KE ZENGGUANG (CN)
Application Number:
PCT/CN2022/128486
Publication Date:
March 07, 2024
Filing Date:
October 31, 2022
Export Citation:
Assignee:
JIANGSU XINGDA STEEL TYRE CORD (CN)
International Classes:
D07B1/06; D07B7/02
Foreign References:
| CN206090153U | 2017-04-12 | |||
| JP2007092261A | 2007-04-12 | |||
| JP2006283198A | 2006-10-19 | |||
| JP2000017587A | 2000-01-18 | |||
| EP0264071A2 | 1988-04-20 | |||
| US5661966A | 1997-09-02 | |||
| JPH05186976A | 1993-07-27 | |||
| JP2007092259A | 2007-04-12 | |||
| CN205171069U | 2016-04-20 | |||
| JPH0291291A | 1990-03-30 |
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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