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Zhuochang Precision

Focus on mold parts processing and production

14 years experience
  • Contact Mr. Deng:

    86-136 8608 3098

  • Contact Ms. Zhong:

    86-189 255 60222

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    1. Wire drawing and cutting

    The raw materials that have passed the laboratory test are drawn into the required diameter size through a wire drawing machine, and then cut into a rod-shaped blank with a fixed length.

    2. Heat treatment

    Before the heat treatment, the blank of the punching needle is adjusted and straightened on the straightening platform with a dial indicator, and then it is heated to 800-1300 degrees Celsius in a high-frequency electric furnace or a salt bath furnace, and stays for 2-5 minutes After oil-cooling hardening, the needle tip hardness can reach Hv590-800 after fine quenching heat treatment. Then, it is subjected to low temperature tempering treatment.

    3. Grinding

    Clamp the punching needle on the spring chuck of the machine tool, and perform grinding and forming according to the size requirements of the various tip base angles of the punching needle.

    4. Polishing

    Polishing is to clean up the oil stains and rust on the surface to clean the surface.

    5. Inspection and storage

    Inspection is carried out according to the required index, and qualified ones can be packed into storage.

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  • Contact US

    Contact: Mr. Deng 86-13686083098
    Tel: 86-0769-89269020 / 88034678
    Email: yongchangmp_168@163.com
    Address: No.11, chuangjian Road,Shangsha second
    industrial zone, Chang'an Town, Dongguan City
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