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The die casting die is the three main factor of the die casting production, which is indispensable.
The so-called die casting process is to integrate these three elements organically, so as to produce
stably and efficiently produced qualified and even high-quality castings with good appearance and
good internal quality, which conform to the requirements of drawings or agreements.
In recent years, the new technology of die casting die surface treatment has been emerging, but
in general, it can be divided into the following three major categories:
(1) the improved technology of traditional heat treatment process;
(2) surface modification technology, including surface heat diffusion, surface phase transformation
strengthening, EDM technology and so on.
(3) coating technology, including chemical plating etc..
Die casting die is a big class in the mold. With the rapid development of China's automobile and
motorcycle industry, the die casting industry has entered a new era of development. At the same
time, higher requirements for the comprehensive mechanical properties and life span of die casting
die are put forward. International Mould Association Secretary General Luo Baihui believes that the
application should meet performance requirements continuously improve to rely solely on the new
mold material is still difficult to meet, must be all kinds of surface treatment technology is applied
to the surface treatment of casting molds for die-casting die to achieve high efficiency and high
precision and high life requirements. In all kinds of moulds, the working conditions of die casting
die are more stringent. Pressure casting is the molten metal under high pressure and high speed full
mold and die-casting molding, in the process of repeated contact with hot metal, so the casting
mold has higher heat resistance, thermal fatigue wear resistance, corrosion resistance, impact
toughness, red hardness, good releasability etc.. Therefore, the requirements for the surface
treatment technology of die casting die are higher.