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Selection of adhesive repair products for conveyor belt (I) -- joint lap (cold stick)

2021-06-23 18:32 source:公司 editor:admin Browse the number:141次

Rubber conveyor belt is made of several layers of fiber fabric and rubber bonded into a tape, used for transporting lumpy, granular, powdery or pieces of goods. Widely used in mining, building materials, chemical, coal, electric power, metallurgy and other industries.

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1. Common damage forms of rubber conveyor belt
Common damage forms of conveyor belt include: 1. Longitudinal tearing of conveyor belt; 2. Transverse tearing of the conveyor belt; 3, conveyor belt vulcanization joint tear; 4. Conveyor belt cracking; 5. The upper and lower adhesive layers of the conveyor belt are worn.

Two, the harm of conveyor belt damage

1. If the rubber conveyor belt is partially damaged and the core layer is not repaired in time, rain and foreign pollutants will soak into the deep layer of the belt, which will expand the damaged part of the conveyor belt and shorten the service life. 2. For the steel wire rope conveyor belt, if the steel wire rope is exposed, it will not be able to operate normally without repair, and it may also cause the conveyor belt to be scrapped, causing great impact on the production of users and economic losses.

Three, conveyor belt joint bonding

The bonding of conveyor belt joints mainly includes three forms: cold bonding, hot curing bonding and mechanical bonding. 1, cold bonding compared to hot vulcanization bonding, cold bonding cost is lower, the process is simple, suitable for short and medium distance belt conveyor joint bonding. Cold bonding adopts layered bonding method, the main steps are as follows :(1) the joint production according to the size length of greater than 1/2 of the bandwidth, with cutting knives and other tools will be layered cutting belt at the joint, peeling into a stepped lap surface (the number of steps is generally not less than 3). When cutting each layer, do not hurt the canvas and other tissues, and the edge of the belt should be cut flat with the knitting layer. Note: the lap length is generally 0.6~0.8 of the width of the conveyor belt. The general principle is that the longer the conveyor belt, the longer the lap length.

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(2) surface treatment with a steel wire brush carefully grind the surface to be bonded, remove the residual layer, coarsening the exposed knitted fabric body, but do not damage the canvas and other knitted fabric body. Brush the dander, clean and decontaminate it with cleaning agent, and dry it fully. (Note: can not be cleaned with water, the belt used in the wet environment must be drying or drying in the sun) (3) mixing adhesive will be the power of 2000 rubber toughening cold adhesive two components according to the ratio of 10:1 to mix, and stir evenly. (Note: the mixed glue must be ready to use, from mixing to use up should be controlled within 45 minutes, otherwise easy to solidify failure) (4) glue with a short and hard brush on the dry glued surface three times in one direction evenly coated glue, glue layer is not too thick or too thin. After each brush coating, such as the film surface dry (that is, after the solvent volatilization, to do not adhere to the back of the finger and a sense of adhesive force) again when the glue. (5) After bonding the coated surface, the two ends of the tape should be firmly bonded according to the direction of belt operation. With the hand hammer from the middle to beat around 2~3 times, exhaust the air between the two lap surfaces.

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(6) after the curing belt joint is bonded, it should be cured to the continent for 120 minutes at room temperature, then the scene can be cleaned. If conditions permit, prolonging the curing time will make the bonding effect better. The belt is bonded in a low temperature or wet environment, and the curing time is extended to long enough, generally 24 hours, except for the baking place.

IV. Product introduction

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Rubber toughening cold viscose for brown, two component, flame retardant cold viscose, normal temperature can be quickly cured. It is mainly used for lap joint of conveyor belt, adhesive adhesive of conveyor belt repair strip and adhesive of rubber plate wrapped in roller. The company's PowerOx brand products are only sold through distributors throughout the country, if necessary, please contact us. We will transfer you to the dealer in your area, to provide you with faster, more accurate, more systematic service. Thank you for your attention and support!

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Power energy ®( POWEROX ®) We have obtained iso9001:2015 quality management system certification, and strictly implement quality management process control in product production; Product line portfolio is rich, mainly including high temperature sealing, structural bonding, rubber bonding repair, industrial cleaning, anti card lubrication, hypoxia locking, sizing tools and other products.

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