Recipe for manufacturing nylon grinding blocks and method for manufacturing nylon grinding blocks by adopting recipe

A grinding block and nylon technology, applied in the direction of abrasives, grinding devices, manufacturing tools, etc., can solve the problems of insufficient bonding force between epoxy resin and silicon carbide, affecting the service life of nylon grinding blocks, and non-wearing nylon grinding blocks. Achieve the effects of improving polishing efficiency, enhancing wear resistance, and enhancing strength

Active Publication Date: 2015-02-04
福建易达新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing nylon wheels are mainly used to polish wood and some metal products (such as some small hardware). When used to polish ceramics or stones and other hard building materials, due to the insufficient bonding force of epoxy resin and silicon carbide, after bonding The holding force of the abrasive is not enough, the abrasive is easy to fall off when the grinding block is working, the service life of the grinding block is short, and the grinding block needs to be replaced frequently, which affects the production efficiency
Moreover, the nylon grinding block is not wear-resistant and not resistant to high temperature. The high-speed friction between the nylon wheel and ceramics or stones will generate a lot of heat. When the nylon fiber sheets are easily stacked and pressed together, they will loosen, which will affect the service life of the nylon grinding block.

Method used

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  • Recipe for manufacturing nylon grinding blocks and method for manufacturing nylon grinding blocks by adopting recipe
  • Recipe for manufacturing nylon grinding blocks and method for manufacturing nylon grinding blocks by adopting recipe
  • Recipe for manufacturing nylon grinding blocks and method for manufacturing nylon grinding blocks by adopting recipe

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The following raw materials are configured by weight percentage: 30% of epoxy resin, 12% of diamond particles, 18% of silicon carbide, 8% of modified phenolic resin, 20% of imidazole, 5% of cerium oxide, and 7% of zinc oxide. Wherein the modified phenolic resin is composed of the following three substances in weight percentage: 13% of urotropine, 4% of polyimide and 83% of phenolic resin. The diamond particles can be diamond particles with a particle size ranging from 20 / 24 to 800 / 1000, which is not specifically limited here.

[0033] Specifically, configure as follows:

[0034] First, put block-like phenolic resin, block-like polyimide and crystal-like urotropine into the ball mill according to the above ratio, and ball-mill the three into a powder mixture; send the ball-milled mixture into the kneading machine for mixing, the mixing temperature is 80°C, and the mixing time is 30 minutes to form a modified phenolic resin.

[0035] Next, mix the diamond, silicon carbi...

Embodiment 2

[0039] The following raw materials are configured by weight percentage: 29% of epoxy resin, 12% of diamond particles, 19% of silicon carbide, 10% of modified phenolic resin, 19% of imidazole, 4% of cerium oxide, and 7% of zinc oxide. Wherein the modified phenolic resin is composed of the following three substances in weight percentage: 14% of urotropine, 3% of polyimide and 83% of phenolic resin.

[0040] Specifically, it can be configured in the following ways:

[0041] First, put block-like phenolic resin, block-like polyimide, and crystalline urotropine into the ball mill according to the above ratio, and ball-mill the three into a powder mixture; send the ball-milled mixture into the kneading machine for mixing, the mixing temperature is 100°C, and the time is 20 minutes to form a modified phenolic resin.

[0042] Next, mix the diamond, silicon carbide, imidazole, zinc oxide, cerium oxide and modified epoxy resin in the above ratio, add it into the liquid epoxy resin afte...

Embodiment 3

[0046] The following raw materials are configured by weight percentage: 26% epoxy resin, 12% diamond particles, 20% silicon carbide, 10% modified phenolic resin, 20% imidazole, 5% cerium oxide, and 7% zinc oxide. Wherein the modified phenolic resin is composed of the following three substances in weight percentage: 14% of urotropine, 3% of polyimide and 83% of phenolic resin.

[0047] The above proportioned raw materials are configured with the same configuration sequence and process conditions as in Example 2; after the formulation configuration is completed, the same process and sequence as in Example 2 are used to make nylon grinding blocks. That is, the difference between the third embodiment and the second embodiment is that the proportioning ratio of the formula for making the nylon grinding block is different, and the nylon grinding block made in the third embodiment can grind stones with a length of 160 meters.

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Abstract

The invention relates to a recipe for manufacturing nylon grinding blocks. The recipe consists of the following ingredients in percentage by weight: 25 percent to 30 percent of epoxy resin, 10 percent to 12 percent of diamond particles, 15 percent to 20 percent of silicon carbide, 8 percent to 10 percent of modified phenolic resin, 15 percent to 20 percent of imidazole, 3 percent to 5 percent of cerium oxide and 5 percent to 8 percent of filling materials, and the modified phenolic resin consists of 12 percent to 15 percent of methenamine, 3 percent to 5 percent of polyimide and 80 percent to 85 percent of phenolic resin. Through the combined action of the modified phenolic resin and the other ingredients, the integral wear-resistant performance and the heat resistance performance of the nylon grinding blocks are improved, and the holding force of grinding materials is improved. The invention also provides a method for manufacturing the nylon grinding blocks by adopting the recipe. The method comprises the steps of proportioning, material selection, soaking, piling lamination pressing, natural curing and drying curing. Through adopting the method, the holding force between the diamond particles and nylon fiber sheets can be well maintained, and the wear resistance of the nylon grinding blocks is enhanced.

Description

technical field [0001] The invention belongs to the technical field of abrasives and abrasive tools, and in particular relates to a formula for making nylon grinding blocks and a method for making nylon grinding blocks using the formula. Background technique [0002] Nylon wheel or nylon grinding block is an important branch product of abrasives, and it is a grinding product following strong cutting and grinding products such as abrasive belt grinding wheels. Nylon wheel products are mainly composed of nylon fiber mesh (or nylon fiber sheet), grinding media (mineral sand) , bonding resin and other main components. Nylon wheel products are mainly divided into two categories: laminated wheels and take-up wheels. The laminating wheel is coated by the method of roller rubber coating with industrial white cleaning cloth, stacked and pressed one by one, baked and solidified in the oven, and finally die-cut into shape; after the winding wheel is coated by the same method, it is I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/32B24D3/34B24D18/00C04B26/10
CPCB24D3/32B24D3/348B24D18/0045C04B26/10
Inventor 庄文峰
Owner 福建易达新材料股份有限公司
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