New workpiece surface low-temperature carbonitriding method
A technology of carbonitriding and workpiece surface, which is applied in the direction of metal material coating process, coating, solid diffusion coating, etc., can solve the problems of long time-consuming and energy-consuming low-temperature nitriding, and achieve short processing time and energy saving , the effect of reducing consumption
Inactive Publication Date: 2014-06-04
DALIAN SHENGJIE VACUUM TECH DEV
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Problems solved by technology
It is used to solve the problems existing in the prior art: low-temperature nitriding takes a long time, high-temperature nitriding consumes energy, etc.
Method used
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Embodiment Construction
[0016] Concrete embodiment of the present invention, its processing step is:
[0017] a. Cleaning: Clean the workpiece and use the method of gas degreasing;
[0018] b. Loading: put the workpiece in the nitriding furnace;
[0019] c. Heating: Preheat the nitriding furnace to 520 degrees;
[0020] d: Nitriding carbon: Infiltrating nitrogen into the furnace while infiltrating carbon, forming fine carbides after carbon infiltration can promote the diffusion of nitrogen and accelerate the formation of loan compounds;
[0021] e: heating and heat preservation: nitriding carbon treatment temperature is 530-570 degrees; heat preservation time is 2-4 hours;
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The invention relates to a new workpiece surface low-temperature carbonitriding method and relates to a workpiece surface carbonitriding method. The new workpiece surface low-temperature carbonitriding method comprises the following process steps of: a, washing: washing a workpiece by adopting a gas oil dirt removing method; b, workpiece loading: loading the workpiece into a nitriding furnace; c, heating: preheating the nitriding furnace to 520 DEG C; d, carbonitriding: infiltrating nitrogen and carbon into the nitriding furnace at the same time, wherein a fine carbide formed after carbon is infiltrated can promote the dispersion of nitrogen and accelerate the formation of a high-nitrogen compound; e, heating and heat preservation: carrying out carbonitriding treatment at the temperature of 530-570 DEG C, and preserving heat for 2-4 hours; f, cooling: reducing the temperature, and cooling at a low temperature. The new workpiece surface low-temperature carbonitriding method disclosed by the invention has the characteristics of simple process, convenient operation, short processing time, energy saving and the like, thereby belonging to the new workpiece surface low-temperature carbonitriding method which integrates economical performance and practicability into a whole.
Description
technical field [0001] The new method for low-temperature carbonitriding of workpiece surface according to the invention relates to a method for carbonitriding of workpiece surface. Background technique [0002] The current nitriding process is divided into two types: high temperature and low temperature. Low temperature nitriding requires a long holding time. Although high temperature nitriding has a short holding time, the energy consumed at high temperature increases. In view of the above-mentioned problems in the prior art, it is very necessary to research and design a new method for low-temperature carbonitriding of workpiece surface, so as to overcome the problems in the prior art. Contents of the invention [0003] In view of the problems existing in the above-mentioned prior art, the purpose of the invention is to research and design a new method for low-temperature carbonitriding of workpiece surface. It is used to solve the problems existing in the prior art: lo...
Claims
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Inventor 田绍洁
Owner DALIAN SHENGJIE VACUUM TECH DEV
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