?In the process of industrial production and manufacturing, it is sometimes necessary to carry out certain cutting and grinding processing. At this time, it is very necessary for the use of the
thin flat cutting disc and the cutting piece, and with the continuous development, it also has the cutting piece. Different types, and metal cutting sheets belong to one of them, but it is very important for cleaning it. Here, Zhengzhou metal cutting sheet supplier analyzes the method of cutting sheet cleaning.
The grinding wheel is an important abrasive tool in the grinding process. A binder is added to the abrasive. The porous object produced by various processes will be cleaned once in a few days, and it is difficult to clean after high temperature. We must do it according to the requirements, otherwise, it will reduce the life of the grinding wheel. In the production process, we need to use the diamond grinding wheel to polish the belt. Generally, the grinding wheel will be unloaded and cleaned after 5-7 days of operation. Rubber crumb, after high-temperature friction, adheres tightly to the surface of the diamond, which is difficult to clean.) Cleaning requirements: 1, environmentally friendly, no ketone, not a halogenated hydrocarbon. 2, can not damage the grinding wheel. Why do you need hardening?
For the industrial production industry, it is necessary to use certain mechanical processing products, especially for products that need to be polished. At this time, we can use the corresponding cutting products, and the cutting piece is this. Abrasives that need to be used, but need to be hardened, and why do the grinding discs need to be hardened? Here we will introduce them in detail.
The shaped body is heat-treated and its shape is fixed to become a
12 inches cut off wheel with certain hardness, strength, and heat resistance. The heat treatment process is hardening. The hardening process of the embryo body is the polycondensation process of the resin binder, and the resin is composed of low molecular weight. The linear structure is polycondensed into a network or a three-dimensional high molecular weight resin. During the crosslinking between the resin molecules, the viscosity of the liquid phenolic resin decreases (the powdery phenolic resin melts first into a liquid state) and changes with temperature. It is an elastomer and finally becomes a hard solid. In the process of heat treatment, when the temperature reaches 80~100 °C, the strength of the embryo body is the lowest when the resin melts and the viscosity decreases, when the temperature reaches 110~130 °C. The polycondensation reaction of the resin is accelerated, and the volatile matter is discharged more. The viscosity of the resin increases sharply and changes from liquid to elastomer. The embryo body is softened and gradually hardened. The temperature continues to rise to 180-190 ° C and remains. For a period of time, the resin completely hardens into insoluble and infusible solids, and the embryo body becomes a solid.
