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A kind of civilian tire nail and its application

A civilian, nail technology, used in tire parts, tire tread/tread pattern, nails, etc., can solve the problems of unfavorable wear performance, low hardness, etc., achieve medium plasticity, improve alloy strength, and good spot welding. Effect

Active Publication Date: 2018-08-14
CHENG SHIN RUBBER CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the nail body of the existing nail is low, which is not conducive to the wear performance of the actual vehicle

Method used

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  • A kind of civilian tire nail and its application
  • A kind of civilian tire nail and its application
  • A kind of civilian tire nail and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The nail body mold is used to cast according to the conventional process to obtain the nail body aluminum alloy casting, which is conventionally quenched and then subjected to conventional aging treatment such as natural placement to obtain the nail body semi-finished product;

[0062] According to the analysis of scanning electron microscope SEM, etc., the results show that, in terms of mass fraction, the alloy elements of the nail body include: 78.04% aluminum; 0.67% magnesium; 12.3% carbon; 3.18% oxygen; 0.83% silicon; 4.98% of copper. The upper part of the nail body is plum-shaped, with a cylindrical space for the nail core in the center.

[0063] The lower part of the semi-finished nail body is passed through a cold heading machine using a local upsetting process to enlarge the original part of the cross section to obtain a disc-shaped base.

[0064] The material of the nail core is a cemented carbide composed of C, O, Si, Ti, Co, and Er in a certain mass ratio, a...

Embodiment 2

[0072] According to the method of Example 1, the nail used for civilian tires was obtained, and the alloy composition of the nail body was the same as that of Example 1.

[0073] Figure 9 A schematic diagram of the front dimension of the nail provided by Example 2 of the present invention, Figure 9 Among them, the name of each label size and Figure 7 Identical; The total height of the present embodiment nail is 11mm (referring to Figure 9 ② in), the height of the nail body is 9.7mm (see Figure 9 middle ), and the rest of the dimensions are the same as in Example 1.

[0074] The nail hardness (Gap) of the present invention: the hardness of the nail core is 20.8, and the hardness of the nail body is 2.39. The invention is beneficial to the wear and tear of the real vehicle, reduces the damage to the road surface, and meets the requirements of Over-Run regulations.

Embodiment 3

[0076] 1. The Finnish testing agency & tire magazine Test World Ltd tested the studded tire 175 / 65R14 in accordance with the Nordic Over-Run regulations

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Abstract

The invention provides a tire nail for civil use and an application of the tire nail. The tire nail for civil use comprises a nail body, wherein the nail body comprises the following ally elements by mass fractions: 70%-85% of aluminum, 0.5%-2.5% of magnesium, 10%-20% of carbon, 2%-6% of oxygen, 0.3%-1.5% of silicon and 2%-7% of copper. In the elements of the nail body, Cu is a main alloy element and plays a solution strengthening role, the alloy strength is improved, the hardness is determined by the strength, and the hardness and the abrasive resistance have a direction relationship; and through addition of Si, silicon aluminum has excellent castability and corrosion resistance to counteract the adverse effects on the corrosion resistance of Cu. The alloy-based high-strength duralumin can be subjected to thermal treatment strengthening, and is medium in plasticity under quenched and as-quenched conditions and good in spot welding. An experiment result shows that the hardness of the nail body of the nail is 2.3-2.6Gap, the wear-resisting property is improved, and the actual vehicle abrasion is facilitated.

Description

technical field [0001] The invention relates to the technical field of studded tires, in particular to a civilian tire nail and its application. Background technique [0002] Anti-skid tires refer to tires with anti-skid measures, usually with special features in tread pattern design, such as adding anti-skid grooves, studs on the tread and installing anti-skid chains on the tires. The studded tires on the tread can be called studded tires, which have excellent grip on ice and snow, can ensure driving safety in winter weather conditions, and thus play the best performance of the car. [0003] Existing ice and snow tires use nails such as figure 1 as shown, figure 1 It is a structural schematic diagram of a nail for an existing ice and snow tire. figure 1 Among them, 1 is the nail core, and 2 is the nail body. The civilian tire nail has a solid structure, including the main body, that is, the nail body, and a single slender auxiliary part, that is, the cylindrical nail co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/14F16B15/00C22C21/00
CPCB60C11/14C22C21/00F16B15/00
Inventor 罗才仁
Owner CHENG SHIN RUBBER CHINA