How to extend the life of die casting mold
Date：
2022-05-05
After the early introduction, you should have a certain understanding of the die casting mold. Then what factors will affect the life of the precision die casting mold? Today, a variety of methods that can extend the service life of die casting products are summarized, such as: reasonable surface treatment and stress elimination. Let's have a look at it in detail.
After the previous introduction, you should have a certain understanding of the die casting mold. What factors will affect the life of the precision die casting mold? Today, we have summarized a variety of ways to prolong the service life of die-casting products, such as reasonable surface treatment and stress relief. Now let's have a detailed look
When using the precision die casting die factory, there will be a temperature difference on the die surface. Thermal strain may sometimes occur due to temperature differences. If the thermal strain is repeated for many times, residual stress will be generated on the surface of zinc aluminum alloy die castings. In most cases, this residual stress is tensile stress, which will lead to hot cracks in die-casting die products. If the stress can be relieved, the residual tensile stress can be reduced, and the effect of increasing the service life of such products can be obtained from the surface
After learning that the hot cracks of zinc aluminum alloy die castings are caused by stress, the precision die casting mold factory found the corresponding solution through research, that is, after a period of mold testing, for example, after 1000~2000 mold times and 5000~10000 mold times of die casting, stress relief treatment was carried out respectively. This treatment can be repeated every 10000~20000 mold times in the future, so that the precision die casting mold factory can minimize the occurrence of hot cracks
In addition, we also need to note that during the stress treatment in the precision die casting mold factory, the temperature is recommended to be about 25 ℃ below the tempering temperature with high heat treatment. Normally, the temperature is kept for 2 hours
The above is the relevant knowledge shared today. I hope you will get some help
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