Briefly describe the carburizing process of heat-treated parts

The carburizing process of the heat-treated parts needs to be done according to the process to ensure the correctness and standardization of the part carburizing process.
Introduction of carburizing process of heat-treated parts:
1. Acceptance parts: The surface of the parts to be carburized should be clean, free of oil, impurities, etc.; otherwise it will affect the carburizing quality of the surface of the parts.
2. Preparation before seepage: Heat the equipment to the temperature to prepare the infiltration agent, check whether the sealing of the industrial furnace equipment is intact, etc., and protect the parts that are partially carburized, such as anti-seepage paste or copper plating.
3. Carburizing: the number and speed of adding the infiltration agent should be appropriate, and pay attention to the three stages of carburizing: decomposition of carburizing medium; absorption of carbon atoms; diffusion of carbon atoms; different amounts of addition in each stage.
4. Cooling: Cool to room temperature with water or oil to achieve the desired tissue morphology.
5. Infiltration inspection: For the inspection of the infiltration layer, the specimen is mainly inspected.
6. Post-infiltration heat treatment: re-quenching and tempering, generally the final heat treatment.
7. Inspection: It is mainly based on the hardness test of parts after quenching, and can also be observed by metallographic method.
8. Open the certificate.

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