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Strong grinding coated abrasive tool preparation method and strong grinding coated abrasive tool prepared through strong grinding coated abrasive tool preparation method

A grinding-coated, strong technology, applied in abrasives, manufacturing tools, metal processing equipment, etc., can solve the problems of easy falling off of abrasives and easy deformation of abrasives with strong grinding and coating

Active Publication Date: 2020-02-11
江苏华东砂轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems that the abrasives are easy to fall off during grinding and the powerful coated abrasives are easily deformed during the high-strength grinding process of the strong grinding coated abrasives prepared by the traditional strong grinding coated abrasives production process, and provides a Preparation method of strong grinding coated abrasive and the prepared strong grinding coated abrasive

Method used

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  • Strong grinding coated abrasive tool preparation method and strong grinding coated abrasive tool prepared through strong grinding coated abrasive tool preparation method
  • Strong grinding coated abrasive tool preparation method and strong grinding coated abrasive tool prepared through strong grinding coated abrasive tool preparation method
  • Strong grinding coated abrasive tool preparation method and strong grinding coated abrasive tool prepared through strong grinding coated abrasive tool preparation method

Examples

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preparation example Construction

[0022] The preparation method of a strong grinding coated abrasive provided by the present invention includes raw cloth treatment, large roll manufacturing and large roll post-processing. The raw fabric treatment includes a shaving and singeing step, a desizing and degreasing step, a dyeing and dipping step, a stretching step, a reinforcing coating step and a calendering step. The production of large rolls includes the steps of printing trademarks, applying primer, sanding, pre-drying, gluing and main drying. Optionally, jumbo post-processing includes a post-curing step, a storage step, a humidification step, a flexing step, and a converting step.

[0023] Wherein, the strengthening coating step is to coat the reinforcing agent on the surface of the original cloth after the stretching step. The impregnating solution in the dyeing and impregnating step contains water-soluble epoxy resin. The reinforcing agent comprises the following raw materials in parts by weight:

[0024]...

Embodiment 1

[0042] Put 2kg of graphene oxide and 2kg of surfactant into 25kg of water for ultrasonic dispersion, then add 30kg of water-soluble epoxy resin and 8kg of polyacrylamide and stir at 1400r / min for 2 to 4 hours to prepare the reinforcing agent.

[0043] Take 50kg of water-soluble epoxy resin, add 1.5kg of coupling agent, 3kg of accelerator, 3kg of curing agent, and 2kg of filler in several times under the stirring condition of 1500r / min and stir evenly, then add 6.5kg of polyurethane and 35kg of modified phenolic resin Stir at 1500r / min for 1-2h to prepare the adhesive.

[0044] Raw fabric treatment: take the raw polyester cloth and go through shaving, singeing, desizing and degreasing, dyeing and dipping, and stretching in sequence, and then coat the above-mentioned strengthening agent with a thickness of 3 μm on both sides of the raw fabric, and then perform calendering treatment.

[0045] Manufacturing in large rolls, printing the trademark on one side of the original fabric,...

Embodiment 2

[0047] Put 1kg of graphene oxide and 1kg of surfactant into 20kg of water for ultrasonic dispersion, then add 20kg of water-soluble epoxy resin and 6kg of polyacrylamide and stir at 1500r / min for 2-4 hours to prepare the reinforcing agent.

[0048] Take 40kg of water-soluble epoxy resin, add 1kg of coupling agent, 2kg of accelerator, 2kg of curing agent, and 1kg of filler in several times under the stirring condition of 1500r / min and stir evenly, then add 5kg of polyurethane and 20kg of modified phenolic resin at 1500r / min / min and stir for 1-2 hours to prepare the adhesive.

[0049] Raw fabric treatment: Take the raw polyester cloth and go through shaving and singeing, desizing and degreasing, dyeing and dipping, and stretching in sequence, and then coat the above-mentioned strengthening agent with a thickness of 2 μm on one side of the raw fabric, and then perform calendering treatment.

[0050] Manufacturing in large rolls, printing the trademark on one side of the original...

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Abstract

The invention discloses a strong grinding coated abrasive tool preparation method. The raw cloth treatment comprises a dehairing and singeing step, a desizing and degreasing step, a dyeing and impregnation step, a stretching step, a reinforcing coating step and a press polish step, wherein in the reinforcing coating step, a reinforcing agent is coated on the surface of a raw cloth after the stretching step, impregnating solution in the dyeing and impregnation step contains water-soluble epoxy resin, and the reinforcing agent comprises the following raw materials, in parts by weight, of 20-40 parts of the water-soluble epoxy resin, 6-10 parts of polyacrylic acid amide, 1-3 parts of graphene oxide, 1-3 parts of a surfactant and 20-30 parts of water. Compared with a traditional preparation method, the reinforcing coating step is newly added after the stretching step of the raw cloth treatment, through reinforcing coating, the water-soluble epoxy resin in the reinforcing agent can be crosslinked with epoxy resin impregnated on raw cloth fibers, and the bonding strength of the epoxy resin and the raw cloth fibers is enhanced, so that adhesive force of grinding material on the raw clothis improved, and the grinding material is prevented from falling off during grinding.

Description

technical field [0001] The invention belongs to the technical field of coated abrasives, and in particular relates to a preparation method of a powerful abrasive coated abrasive and the prepared powerful coated abrasive. Background technique [0002] Due to the continuous improvement of people's living standards, people's requirements for the accuracy and smoothness of various products are also getting higher and higher, and a large number of high-precision cutting, grinding, and polishing materials are required. Coated abrasives for powerful grinding are widely used in high-precision cutting, grinding and polishing as a commonly used coated abrasive. The substrate used in the powerful grinding coated abrasive tool is mainly the base cloth. The base cloth needs to be shaved, singeed, and Desizing and degreasing, dyeing and dipping, squeegeeing, stretching, calendering and other processes, and then go through the processes of primer coating, sand planting, regluing, drying a...

Claims

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Application Information

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IPC IPC(8): B24D11/00B24D11/02
CPCB24D11/001B24D11/02
Inventor 陈瑞和陶海征高朋召郭文明陈沈萍王友堂
Owner 江苏华东砂轮有限公司
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