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Machining process of air leakage free self-repairing vacuum tyre

A processing technology and air leakage prevention technology, applied in tire parts, transportation and packaging, vehicle parts, etc., can solve problems such as easy falling off, large temperature difference, loss of function, etc., to maintain flexibility, uniform thickness, and prevent air leakage. Effect

Inactive Publication Date: 2008-08-13
王明慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tires mentioned in the above patents have solved the leak-proof problem of the tires to varying degrees, but there are also shortcomings. First of all, the above-mentioned patents simply add a leak-proof layer or a liquid-proof layer on the tire, and do not provide specific leak-proof The composition of the layer is only an idea, which cannot be realized through the patent specification; secondly, the tire needs to withstand a large temperature difference, such as a low temperature of about minus 40°C and a high temperature of about 100°C during high-speed operation. The leak-proof layer mentioned in the above patent It is easy to age or lose its effect; finally, there is the disadvantage that the leak-proof layer is not firmly combined with the tire body and is easy to fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 The inner wall of the anti-air leak self-refilling vacuum tire is spray-coated with a styrene-isoprene copolymer elastic colloid layer with a thickness of about 4 mm. Its preparation process is as follows:

[0027] First, mix styrene and isoprene monomers in a reaction vessel at a weight ratio of styrene:isoprene=1:0.5, heat to about 140°C and stir to carry out polymerization reaction to obtain viscous styrene-isoprene Pentadiene copolymer elastic colloid; use a grinding wheel to grind the inner wall of the vacuum tire, the grinding depth is 0.01-0.05mm, wash the polished surface with clean water, then dry it, and process the inner wall into a clean and uniform rough surface; Clamp the outer circle of the tire with a tooling fixture, and rotate the tire at a speed of 2000 rpm, heat the prepared styrene-isoprene copolymer elastic colloid to 110°C and spray it on the inner wall of the vacuum tire The thickness of the sprayed layer is 4mm. While spraying, the co...

Embodiment 2

[0029] Example 2 The inner wall of the anti-leakage self-sealing vacuum tire is spray-coated with a styrene-isoprene copolymer elastic colloid layer with a thickness of about 6 mm. Its preparation process is as follows:

[0030] First, mix styrene and isoprene monomers in a reaction vessel according to the weight ratio of styrene: isoprene = 1:0.7, heat to about 180°C and stir to carry out polymerization reaction to obtain viscous styrene-isoprene Pentadiene copolymer elastic colloid; use a guide wheel to cut and polish the inner wall of the vacuum tire, the grinding depth is 0.01-0.05mm, wash the cut surface with clean water, and then dry it, and process the inner wall into a clean and uniform roughness surface; the outer circle of the tire is clamped with a tooling fixture, and the tire is rotated at a speed of 1000 rpm, and the prepared styrene-isoprene copolymer elastic colloid is heated to 180 ° C and sprayed on the vacuum tire On the inner wall, the thickness of the spr...

Embodiment 3

[0032] Example 3 The inner wall of the anti-air leak self-refilling vacuum tire is spray-coated with a styrene-isoprene copolymer elastic colloid layer with a thickness of about 6 mm. Its preparation process is as follows:

[0033] First, mix styrene and isoprene monomers in a reaction vessel according to the weight ratio of styrene: isoprene = 1:0.3, heat to about 200°C and stir to carry out polymerization reaction to obtain viscous styrene-isoprene Pentadiene copolymer elastic colloid; use a grinding wheel to grind the inner wall of the vacuum tire, the grinding depth is 0.01-0.05mm, wash the polished surface with clean water, then dry it, and process the inner wall into a clean and uniform rough surface; Clamp the outer circle of the tire with a tooling fixture, and rotate the tire at a speed of 200 rpm, heat the prepared styrene-isoprene copolymer elastic colloid to 260°C and spray it on the inner wall of the vacuum tire , the thickness of the sprayed layer is 1mm. While ...

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PUM

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Abstract

The invention discloses an air leaking-proof self-supplementing vacuum tyre and manufacturing craft, which is characterized by the following: 1-6 mm styrene-isoprene copolymer elastic colloid is coated on the inner wall of tyre, which adapts the weight ratio of styrene and isoprene at 1:0.3-0.7; the inner wall of vacuum tyre is polished and cleaned; the copolymer elastic colloid is heat at 110-280 deg C to coat on the inner wall, which makes the coating thickness possess self-supplementing function after piercing. The invention can prevent tyre from air leakage, which contains good self-supplementing function between -40 and 100 deg C.

Description

technical field [0001] The invention belongs to the technical field of anti-leakage self-repairing tires, in particular to a vacuum tire with a thermoplastic elastomer anti-leakage layer and the function of anti-leakage self-repairing. Background technique [0002] Vacuum tires are tubeless tires commonly used in cars at present. It has the advantages of good sealing effect and long inflation time interval. But when the vacuum tire is pierced by a sharp object, if the sharp object stays on the tire body, the high-pressure gas in the tire will slowly leak from the punctured part. The high-pressure gas will quickly leak or blow out. [0003] The most commonly used method to prevent air leakage after tire puncture is to increase a puncture-resistant layer or an anti-leakage layer between the carcass or the inwall of the carcass. For example, the Chinese patent ZL00213646.5 announced on January 24, 2001 discloses a tire, which includes a carcass and a pattern on the carcass, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C19/12
Inventor 王明慧
Owner 王明慧
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