Cutting film products Because of raw materials, process and other objective factors, we can not rely solely on theoretical data to complete quality stability and new product development, more practical experience and continuous experimentation, in order to ensure product quality, and continue to develop new products.
The use of phenolic resins as binders for resin dicing sheets is almost universally consistent. Except for the benzene ring resin (an epoxy-modified phenolic resin) which is the heaviest load on the slab, the phenolic resin is basically used, and the formulation and process of the basic resin have been finalized. The binders mentioned here are broadly defined, and in addition to the binder itself (phenolic resin), fillers and additives are included, and the additives are highly varied. The composition of the additive ingredients actually represents what is only mastered by the
customized metal cutting disc, but the basic bonding agent has not changed much.
The fillers used to initially cut the sheets are inert materials such as clay, vermiculite, etc., with the aim of reducing costs. The cryolite, which was later discovered, an aluminum fluoride ore, whose main component was added, greatly improved the grinding efficiency and was quickly promoted in the resin cutting sheet. Today cryolite remains one of the main active fillers. At the temperature of the grinding interface, especially in the presence of carbon and water vapor due to decomposition of the resin, the cryolite may thermally decompose to produce hydrofluoric acid, and the filler participates in the reaction at the grinding interface temperature. These reactions can occur between two or more fillers, between the filler and the binder, or between the filler and the surface of the metal being ground. These reactions can occur when the filler is in a solid, molten or decomposed state. Mixtures of a plurality of fillers, one of which acts as a fusible agent for other fillers or forms a low melting point co-melt with other fillers. Decomposing the filler may weaken the binder and cause the abrasive particles to fall off, minimizing sluggishness and slippage of the cutting blade. This filler can be used to organize tightly cut pieces to increase metal removal rates while maintaining proper life. The decomposed filler provides a more efficient acid grinding atmosphere. Tests have shown that the grinding efficiency is low under an inert atmosphere such as ammonia. It is well known that the use of fillers that produce sulfur, chlorine or fluorine at the grinding interface can increase the efficiency of grinding stainless steel. It can be seen that the role of the active filler in grinding is very complicated and remains to be explored in many aspects, but its effect is unquestionable. The components of various patented fillers were analyzed and found to contain most of the fluorine, chlorine, bromine, sulfonium, antimony or phosphorus elements.