Screen printing type casting diamond dry grinding sheet and manufacturing process thereof

Abstract

The invention provides a screen printing type casting diamond dry grinding sheet and a manufacturing process thereof. The manufacturing process comprises placing the following materials of, by volume, 30 to 50% of binding agent, 2 to 25% of diamond grinding materials, 1 to 10% of endothermic agent, 0 to 5% of foaming agent, 5 to 12% of cooling agent and 10 to 30% of grinding materials into a mixer to be mixed for 1 to 4 hours; brushing mixed paste on a textile base layer through a screen printing die; lifting up the die to be naturally solidified for 3 to 36 hours at the room temperature or placing the die into an oven to be solidified for 1 to 42 hours under the condition of 60 to 300 DEG C; adhering a layer of nylon buckle wool surface or nylon buckle hook surface onto the bottom surface of the textile base layer through a polymer adhesive; trimming the edge to obtain a dry grinding sheet finished product. According to the screen printing type casting diamond dry grinding sheet and the manufacturing process thereof, devices are simple, the process is advanced, the heat resistance of the dry grinding is improved, most of the heat generated in the grinding process can be absorbed, and the grinding temperature is directly reduced.

Description

technical field [0001] The invention relates to a diamond grinding disc for grinding and polishing of non-metallic materials, in particular to a screen-printing casting method diamond dry grinding disc and a manufacturing process thereof. Background technique [0002] Non-metallic materials are more and more widely used in production and life, such as from cement floor to granite, marble, ceramic floor, the wide application of glass in photovoltaic and mobile phone panels, and the emergence of sapphire mobile phone panels. In many fields, the requirements for processing quality are getting higher and higher. However, due to the limitation of materials and environment, it is not suitable to use coolant for cooling during processing. Dry grinding and dry polishing must be used to achieve the required surface processing quality. However, another problem arises. Grinding without cooling liquid will inevitably increase the temperature of the processed surface. Therefore, dry grin...

AI Technical Summary

Problems solved by technology

[0005] The invention patent with the notification number CN101722478A discloses a diamond dry grinding disc and its manufacturing method. The abrasive layer of the dry grinding disc is made of a mixture of high temperature resistant resin, diamond particles and wear-resistant and heat-dissipating additives. The additives of wear-resistant and heat-resistant materials can significantly improve the heat resistance of the resin in the abrasive layer, and the process has been improved. It can be molded by first closing the mold, hot pressing, and then curing, and can be made into a thicker dry abrasive sheet. The invention manufactures Although the advanced diamond dry grinding disc can not only resist high temperature, but also can perform continuous grinding work for a long time, it also only improves the heat resistance of the diamond dry grinding disc itself, and does not reduce the grinding temperature.

The molding method of mold closing and hot pressing has high requirements on equipment power and heat, which is not conducive to energy saving and environmental protection

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