Correct use of aluminum alloy die-casting molds
The aluminum alloy die-casting mold works in a high temperature and high pressure working environment, and the working process is a cycle process of alternating cold and heat. Because the die-casting aluminum alloy liquid fills the cavity in a short time and solidifies under the action of pressure. Aluminum alloy die-casting molds are subject to mechanical stress under the action of metal flow stress, thermal alternating stress that rapidly changes in temperature in a short period of time, and corrosion of alloy liquid. It can protect the mold and prolong the service life of the mold.
In order to protect the aluminum alloy die-casting mold and improve the efficiency of the mold, it is very necessary to keep the working state of the mold within a certain temperature range as much as possible. If the mold is not preheated, on the one hand, due to the low temperature of the aluminum alloy die-casting mold, it will cause defects such as difficulty in forming, mucous membranes, and cracks in the casting; , in severe cases, it may cause the mold to burst. Therefore, it is very important to preheat the mold before use.