a common problem of degreasing

Skim the carbon content is a common problem in the control, skim the existence of residual carbon is likely to cemented carbide and silicon carbide, steel and other materials is good, but for other materials such as stainless steel, aluminum oxide is extremely harmful, magnetic materials, control of carbon is an important aspect in defatted practice, for some lack of stable carbide material system control carbon is a particular problem, carbon content is through the control of degreasing atmosphere and the choice of heating rate, if the temperature reached 450 degrees about polymer binder still not removal, so residual binder can cause carbon residue problems, to get a lower carbon content, note the following: the thermal degreasing late heating rate must be low, under the low temperature heat preservation, high gas dew point and the atmosphere of high flow rate.

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