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In recent years, with the development of mold industry, the graphite mold continue to impact the traditional mold market, the graphite itself has the characteristics which can not be replaced by other metal materials, the graphite has been used as the preferred material of mold manufacturing. In the practical application of graphite mold, the oxidation resistance of graphite mold is the focus of the industry. In fact, to do a good job of graphite mold impregnation is the main means to solve the general oxidation resistance, then how to impregnate the graphite mold in the actual operation ? First, paying attention to the material of graphite mold impregnation vessel. The impregnation vessel can select suitable materials for production according to…
The graphite crucible for melting silver has strong resistance to high temperature, small thermal expansion coefficient and small resistance performance, especially for acid and alkali corrosion resistance, it has a good chemical resistance to corrosion. The graphite crucible for melting gold is dipped and coated with anti oxidation coating, the high temperature graphite will penetrate into the pores of the graphite crucible, and empty the space to form a protective film.This layer of protective film which can effectively cut off the oxidizing reaction after the contact of the air with the crucible, it won’t crack and shed in the high temperature can make graphite crucible in the construction of the delay and the oxidation, which prolongs the service life of…
As is known to all, the graphite has a sheet crystal structure and good lubrication performance like a molybdenum sulfide MOS2. It also has good electrical conductivity, thermal conductivity, wear resistance, pressure resistance, temperature resistance, (the temperature can be up to 450 degrees C) and chemical stability characteristics, so the graphite are widely used to manufacture various lubricants in the machinery industry. The graphite used as a lubricant, we mainly make fine graphite particles distributed uniformly in the form stable colloidal matter in water, oil or other medium,we can directly adopt inunction, dip coating or spraying way to add the graphite lubrication to the parts which need be lubricated , it can also be added to a variety of lubricants…
