Opened type steel curtain strand of 1+5+10 structure
An open type, steel cord technology, applied in the field of steel cords, can solve the problems of cord corrosion and reduce the fatigue life of cords, etc.
Pending Publication Date: 2017-09-22
盛利维尔(常州)金属材料有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
There are many closed gaps inside the cord of this patent, and the rubber cannot penetrate into these gaps at all. In the tire, these gaps are filled with air and water vapor, which will corrode the cord and reduce the fatigue life of the cord.
Method used
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Embodiment approach 1
[0018] 1. Produce 0.20 semi-finished brass wire with a diameter of 1.40mm;
[0019] 2. Produce 0.22 semi-finished brass wire with a diameter of 1.60mm;
[0020] 3. Produce 0.24 semi-finished brass wire with a diameter of 1.80mm;
[0021] 4. Production core stock 0.20+5x0.22;
[0022] 5. Production cord 0.20+5x0.22+10x0.24 7.5 / 16SS.
[0023] In this embodiment, the gap L1 between adjacent wires in the middle layer 2 is 26.9 μm, and the gap L2 between adjacent wires in the outer layer 3 is 31.9 μm.
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The invention relates to the technical field of steel curtain strands, in particular to an opened type steel curtain strand of a 1+5+10 structure. The opened type steel curtain strand comprises a center layer, a middle layer and an outer layer, the center layer is a steel wire with the diameter being d1, five steel wires with the diameter being d2 in the middle layer are winded with the twisting distance being p1 around the center layer, and ten steel wires with the diameter being d3 in the outer layer are winded with the twisting distance being p2 around the middle layer; the gap between the adjacent steel wires on the same layer is not smaller than 25 micrometers. After the structure is adopted, the appropriate gap between the steel wires is guaranteed, the sealing gap is eliminated, the steel curtain strand is an opened curtain strand, the permeation of rubber is ensured, therefore the fatigue life of the curtain strand is prolonged, the adhesive force is increased, and the steel curtain strand is excellent in performance.
Description
technical field [0001] The invention relates to the technical field of steel cords, in particular to an open steel cord with a 1+5+10 structure. Background technique [0002] Steel cord is the most widely developed product among rubber skeleton materials, and it is also the most difficult product to produce among metal products. The definition of steel cord in the standard by the International Synthetic Fiber Standardization Bureau is: "A structure composed of two or more steel wires, or a combination of strands and strands or a combination of strands and wires." Traditional Bias tires use fibers (such as polyester cords and nylon cords) as the skeleton material, while new radial tires use steel cords as the skeleton material. According to their structure, they can be divided into all-steel radial tires and semi-steel radial tires. For tires, the belt layer and carcass of the former use steel cord as the skeleton material, while the belt layer of the latter uses steel cord ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): D07B1/06
CPCD07B1/0633D07B1/0693D07B2201/1036D07B2201/1052D07B2201/2025D07B2501/2046
Inventor 张年春盛荣生张明
Owner 盛利维尔(常州)金属材料有限公司