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Preparation method of conveyor belt disrepair patch

A technology for repairing sheets and conveyor belts, applied in belts, applications, household appliances, etc., can solve problems such as affecting user production efficiency, increasing user maintenance costs, and short service life of conveyor belts, achieving easy operation, saving maintenance costs, extending The effect of service life

Inactive Publication Date: 2010-12-08
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as high vulcanization temperature, long bonding time, complicated process and high cost in thermal adhesive repair.
The method of cold bonding repair is mainly to use rubber adhesive to paint the damaged part several times as a primer, and then put the rubber skin (painted with rubber adhesive) or high-strength rubber repair adhesive on the cover material of the conveyor belt. The damaged part can be repaired by curing for a few hours according to the requirements of use, but because the bonding strength of the repair is lower than that of the vulcanized hot-bonding method, the service life of the repaired conveyor belt is shorter than that of the hot-bonding method, 3 months or more The rubber sheet or rubber repair agent that repairs the damaged part in a short period of time will fall off, and the damaged part still needs to be repaired, which affects the user's production efficiency and increases the user's maintenance cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In the first step, 100 parts of nitrile rubber, 3 parts of sulfur, 2 parts of magnesium oxide, 2 parts of zinc oxide, 1 part of anti-aging agent RD, 70 parts of semi-reinforced furnace black, 10 parts of softener, and 10 parts of terpene phenolic resin , 0.2 parts of accelerator CZ, and 0.4 parts of accelerator TT were added to the rubber mixer with the roller temperature set at 40-50°C and mixed evenly for 25 minutes to form the wear-resistant rubber sheet.

[0015] In the second step, 60 parts of chloroprene rubber, 40 parts of nitrile rubber, 3 parts of magnesium oxide, 3 parts of antioxidant A, 0.6 parts of pigment, 20 parts of white carbon black, 10 parts of softener, 70 parts of light calcium, terpene 20 parts of phenolic resin, 0.4 parts of accelerator NA22, and 6 parts of zinc oxide were added to the roller and the temperature was set at 40-45°C in the rubber mixing machine for uniform mixing for 15 minutes to form the rubber sheet on the bonding surface.

[001...

Embodiment 2

[0018] In the first step, 80 parts of nitrile rubber, 2 parts of sulfur, 6 parts of magnesium oxide, 6 parts of zinc oxide, 2 parts of anti-aging agent RD, 90 parts of semi-reinforced furnace black, 15 parts of softener, and 20 parts of terpene phenolic resin , 0.3 parts of accelerator CZ, and 0.4 parts of accelerator TT were added to the rubber mixer with the roller temperature set at 40-50°C and mixed evenly for 20 minutes to form the wear-resistant surface rubber sheet.

[0019] In the second step, 80 parts of neoprene rubber, 20 parts of nitrile rubber, 3 parts of magnesium oxide, 1 part of antioxidant A, 0.2 parts of pigment, 12 parts of white carbon black, 8 parts of softener, 30 parts of light calcium, terpene 10 parts of phenolic resin, 0.5 parts of accelerator NA22, and 2 parts of zinc oxide were added to the roller and the temperature was set at 40-45°C in the rubber mixer to uniformly knead for 20 minutes to form the adhesive surface rubber sheet.

[0020] The 3rd s...

Embodiment 3

[0022] In the first step, 90 parts of nitrile rubber, 2 parts of sulfur, 4 parts of magnesium oxide, 4 parts of zinc oxide, 1.5 parts of antioxidant RD, 85 parts of semi-reinforced furnace black, 15 parts of softener, terpene phenolic resin 15 parts, 0.5 parts of accelerator CZ, and 0.3 parts of accelerator TT were added to the rubber mixer with the roller temperature set at 40-50°C and mixed uniformly for 23 minutes to form the wear-resistant rubber sheet.

[0023] In the second step, 70 parts of chloroprene rubber, 30 parts of nitrile rubber, 4 parts of magnesium oxide, 3 parts of antioxidant A, 0.4 parts of pigment, 15 parts of white carbon black, 8 parts of softener, 55 parts of light calcium, terpene 15 parts of phenolic resin, 0.3 parts of accelerator NA22, and 4 parts of zinc oxide were added to the roller and the temperature was set at 40-45°C in the rubber mixer to uniformly mix for 17 minutes to form the rubber sheet on the bonding surface.

[0024] The third step is...

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PUM

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Abstract

The invention provides a preparation method of a conveyor belt disrepair patch. Vulcanization is employed to prepare sheet rubber with wear-resistant surface and sheet rubber with adhesive surface; the sheet rubber with wear-resistant surface is placed in a die of a vulcanizing machine and the temperature of the vulcanizing machine is set at 150 DEG C while the pressure of the vulcanizing machineis adjusted at 5MPa; the sheet rubber with wear-resistant surface in the die is vulcanized for 5 minutes; the sheet rubber with adhesive surface is then placed under the sheet rubber with wear-resistant surface and the temperature of the vulcanizing machine is set at 150 DEG C while the pressure of the vulcanizing machine is set at 5MPa, and the sheet rubber with adhesive surface is vulcanized for 5 minutes; the pressure of the vulcanizing machine is then set at 15MPa and the vulcanizing temperature is kept at 150 DEG C for vulcanizing continuously for 5 minutes. The reaction between a semi-cure layer and a rubber cementing compound is used for improving the adherence intensity of cold sticking repair while obtaining the repair effect as excellent as hot sticking.

Description

technical field [0001] The invention relates to a preparation method of a damaged repair sheet for a conveyor belt. Background technique [0002] At present, the methods of repairing the damage of the conveyor belt on the market mainly include: vulcanization hot bonding method and cold bonding repair method. Among them, the method of vulcanization thermal bonding repair is to use the pre-mixed raw rubber sheet on the damaged part of the conveyor belt, and use a vulcanizer to heat and vulcanize, so as to achieve the purpose of repair. However, there are disadvantages such as high vulcanization temperature, long bonding time, complicated process and high cost in thermal bonding repair. The method of cold bonding repair is mainly to use rubber adhesive to paint the damaged part several times as a primer, and then put the rubber skin (painted with rubber adhesive) or high-strength rubber repair adhesive on the cover material of the conveyor belt. The damaged part can be repair...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/02C08L9/02B29C73/10B29C35/02C08L11/00B29L29/00
Inventor 刘洁王兵李印柏林新松翟海潮
Owner TONSAN ADHESIVES INC