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Two curing resin methods for ultra-thin cutting sheets

The cutting piece is made of abrasive and binder resin for cutting ordinary steel, stainless steel and non-metal sheets, thin flat cutting disc is a category that is divided according to the thickness of the cutting piece. Ultra-thin dicing sheets generally have two curing methods: thermal curing resin and photo-curing resin, and two curing resin methods for ultra-thin dicing sheets are the most commonly used curing methods for cutting sheets.

1. The thermosetting resin method generally uses a thermosetting phenolic resin as a bonding agent, and the diamond abrasive grains are mixed with a resin, and then sintered by hot pressing, and then thermally solidified and then subjected to grinding processing. This process takes several hours, so the production cost is compared.

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2. The photocurable resin is composed of a photocrosslinkable polymer, an initiator and an additive. It differs from the thermosetting resin in its essential nature in that the curing process is a chemical reaction caused by absorption of light radiation of a corresponding wavelength to convert the photocurable resin from a liquid to a solid. The conversion from liquid to solid is the result of an increase in molecular weight, rather than the evaporation of solvent, so it has the advantages of rapid solidification, no pollution, and energy saving, but the constraint factor is the high price of raw materials.

Using photocurable resin as a bonding agent in the manufacture of thin flat cutting disc by photocurable resin method The ultra-thin diamond cutting wheel with a thickness of 0.15mm was successfully completed, and the cutting test of the single crystal silicon wafer was successfully completed.

At present, with the advancement of technology, photocuring has gradually begun to replace thermal curing. It can also be seen from the above that the photocurable resin method has many advantages over the thermosetting resin method, which is why it gradually replaces the thermosetting resin method.

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