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Long-service-life multi-face self-lubricating antifriction plate and manufacture method thereof

A manufacturing method and technology of anti-friction plate, which are applied in the field of long-life multi-faceted self-lubricating anti-friction plate and its manufacturing field, can solve the problem of insufficiently improving the bonding performance of anti-friction material and steel substrate, and the metallographic structure of manganese steel plate Roughness, reduced service life of anti-friction plates, etc., to achieve the effect of scientific and innovative conception, high wear resistance and reduced force

Inactive Publication Date: 2013-08-07
沈阳思莱德模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-friction plates are usually made of manganese steel plates. The metallographic structure of manganese steel plates is rough, and the lubricity and wear resistance are not good, which increases the force of the mold during the opening and closing process, making the use of anti-friction plates The service life is greatly reduced, so it is necessary to use engine oil frequently for lubrication, and the use of oil products is the most taboo in the production of rubber tires
After adopting the process of Q235 steel plus electroplated copper film, its performance and life have been improved, but due to the limited thickness of the electroplated copper film (usually less than 10 microns), it is not enough to greatly improve the friction between the antifriction material and the steel substrate. Combination performance; unilaterally increase the thickness of the copper plating film, and it is easy to cause problems such as hydrogen accumulation to cause bubbling of the copper plating film

Method used

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  • Long-service-life multi-face self-lubricating antifriction plate and manufacture method thereof
  • Long-service-life multi-face self-lubricating antifriction plate and manufacture method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0018] (2) Preparation of anti-friction layer dressing

[0019] The mixture composed of copper powder, tin powder, lead powder, zinc powder, and natural flake graphite is fed into the mixing machine for full mixing. The percentages of each component to the total weight of the material are: copper powder 72% to 77%, tin powder 11%~12%, lead powder 4%~5%, zinc powder 1%~2%, natural flake graphite 7%~9%.

[0020] (3) Manufacturing method of anti-friction plate

[0021] 1) Apply anti-friction layer dressing (2) on the outer surface of the substrate (1), put it in the sintering furnace for high-temperature sintering for 20-30 minutes, at a sintering temperature of 800-900℃, use decomposed ammonia as a protective gas, and sinter it into a loose state Anti-friction plate;

[0022] 2) Roll the loose anti-friction plate into a dense plate shape by a double-roll blooming mill;

[0023] 3) Annealing treatment, the annealing temperature is 800~850℃;

[0024] 4) Send the annealed anti-friction plat...

Embodiment 1

[0027] The present invention is implemented according to the manufacturing method of the multi-faceted self-lubricating anti-friction plate.

[0028] Among them, in the manufacturing method (1) of the substrate 1, the steel plate 11 is preferably Q235 steel, and the dense thickness of the copper alloy coating sprayed on the outer surface of the steel plate 11 is 0.1 mm.

[0029] According to the above-mentioned preparation method of anti-friction layer dressing, 75 kg of copper powder, 11 kg of tin powder, 5 kg of lead powder, 2 kg of zinc powder, and 7 kg of natural flake graphite are fed into the three-dimensional mixer, and mixed at room temperature for 3-6 Hours, prepare 100 kg of antifriction layer dressing.

[0030] During the processing of the anti-friction plate, the sintering temperature is set to 850°C, the sintering time is 30 minutes, the annealing temperature is 820°C, and the annealing time is 40 minutes.

Embodiment 2

[0032] The content of Example 2 is basically the same as that of Example 1, and the difference is that the dense thickness of the copper alloy coating sprayed on the outer surface of the steel plate 11 is 0.15 mm.

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Abstract

The invention relates to a long-service-life multi-face self-lubricating antifriction plate in rubber tire mould manufacture industries and a manufacture method thereof. The antifriction plate comprises a steel base plate and an antifriction layer dressing. The manufacture method comprises applying the antifriction layer coating on the surface of the base plate, placing the base plate in a sintering furnace protected by decomposition ammonia for sintering at the temperature in a range of 800 DEG C to 900 DEG C for 20 minutes to 30 minutes, performing cold rolling and annealing treatment, and sending the base plate into a finishing roller for rolling. A copper alloy coating with the thickness larger than or equal to 0.1mm is coated after the base plate is subjected to planning processing and sand blasting, and the antifriction dressing layer is formed by mixing and preparing, by weight, 72% to 77% of copper powder, 11% to 12% of tin powder, 4% to 5% of lead powder, 1% to 2% of zinc powder and 7% to 9% of natural flaky graphite. The multi-face self-lubricating antifriction plate manufactured through the method has the advantages of being low in frictional coefficient, high in antifriction performance, few in maintenance time, long in service life and the like.

Description

Technical field: [0001] The invention relates to a high-life multi-faceted self-lubricating anti-friction plate and a manufacturing method thereof, in particular to a multi-faceted self-lubricating anti-friction plate and a production process thereof for producing radial tire inclined plane guiding active molds in the rubber tire mold manufacturing industry. Background technique: [0002] In the rubber tire mold manufacturing industry, single-sided and multi-sided self-lubricating anti-friction plates are the main components for the production of radial tire inclined plane guide active molds. It not only has to withstand greater external force during work, but also has good self-lubricating performance and a small friction coefficient to ensure its long service life. Traditional anti-friction plates are usually made of manganese steel plates. The metallographic structure of manganese steel plates is rough, and the lubricity and wear resistance are poor. This increases the force o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/04B22F1/00
Inventor 黄科赵航炜郑长虹于宝海
Owner 沈阳思莱德模具有限公司
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