There are a large amount of factors that affect the die-casting mould High pressure die casting. From the perspective of the operational performance, the failure of the mould is mainly shown by the following situations. What comes first is that the mould becomes old and brings concerning the cracking.
Next, as the mould cracks, it can’t be used. Thirdly, as the mould often has various problems, it can not be used. Are you aware that main factors that end in the breakage of the die casting mould, they could be discussed as follow: during the operation, the mould is attacked by the aluminium liquid with temperature and high pressure.
Besides, as the aluminium liquid has temperature, the mould expands when heated and contracts when cooled all the time. Therefore, the damage of the mould is principally due to the attack, press, compression and expansion. In line with the reasons, the service life of a die-casting mould may be prolonged through reducing the attacking speed, pressure, temperature and so on.
There are a lot of methods that can prolong the operation time of the die casting mould. In this information, the writer will discuss the techniques from three aspects. Firstly, the mould material and the heat treatment of the material have a great impact on the service life of a mould. Based on different requirements for the castings and various die casting conditions, people should choose the correct mould steel and optimal heat treatment, because it is just a very significant solution to prolong the operation time.
Secondly, the design of the mould is another important factor. Therefore, when designing the mould, people should fully consider different factors on the cornerstone of the options that come with the castings. They are able to look closely at the following questions: whether the potency of the mould is enough; if the pouring head would work; perhaps the cooling device or the warming device is reasonable. Last however not least, to be able to prolong the operation time, new manufacturing technology should be explored positively, such as for example new nitriding method or titanizing method.