What are the factors that affect the service life of die casting machine punches? First look at the general classification of die-casting machine punches currently on the market: cast iron punches, ductile iron punches, 45# steel high-frequency punches, H13 punches, nano-ceramic laser punches, beryllium copper punches, etc.

At present, the most practical and efficient punches on the market are not expensive: H13 punches and nano-ceramic laser punches have a normal service life of 15000-20000 molds. Among them, nano-ceramic laser punches are much cheaper than H13 punches. , The service life is similar to the H13 punch. Dongguan Chengda Machinery Parts Co., Ltd. has only focused on production for more than ten years: zinc, aluminum, magnesium, copper alloy die-casting machine parts, processing, inner and outer circle, heat treatment, nitriding as a new generation Technology companies are professional because of their focus.

I won’t go into the topic without much talk. The use conditions of the die-casting machine's injection punch are more complicated than the school, and there are many factors that affect its service life. In addition to the material of the punch itself, its processing accuracy and the fit gap of the pressure barrel, the smooth surface of the injection barrel, the lubrication effect, the dimensional accuracy of the injection barrel and the dimensional accuracy of the sprue sleeve and the installation of the punch Concentricity, cold water cooling conditions of the punch, die-casting temperature, die-casting speed, etc. will all have an impact on the service life of the punch.

Secondly, the requirements for the material performance of the injection punch are as follows:

1. The coefficient of thermal expansion is small to prevent the punch from being stuck in the injection chamber due to expansion.

2. It has high strength to avoid throwing the punch during the injection process.

3. It must have good wear resistance to overcome the friction between the punch and the injection chamber under high temperature and high pressure.

4. A reasonable friction pair must be formed between the punch, the injection chamber and the gate sleeve, so that there will be no rapid wear.

5. The price is cheap.

6. Good processing performance.

Combined with the current usage of the factory and probably the above situations, please don’t spray if the analysis is wrong!!!