There are a lot of factors that affect the die-casting mould. From the perspective of the operational performance, the failure of the mould is especially shown by the following situations. What comes first is that the mould becomes old and brings concerning the cracking.
Next, since the mould cracks, it can’t be used. Thirdly, because the mould often has various problems, it can’t be used. Are you conscious that main factors that end in the breakage of the die casting mould, they are often discussed as follow: throughout the operation, the mould is attacked by the aluminium liquid with temperature and high pressure.
Besides, whilst the aluminium liquid has temperature, the mould expands when heated and contracts when cooled most of the time. Therefore, the damage of the mould is particularly due to the attack, press, compression and expansion. On the basis of the reasons, the service life of a die-casting mould could possibly be prolonged through reducing the attacking speed, pressure, temperature and so on.
There are always a lot of methods that can prolong the operation time of the die casting mould. In these records, the writer will discuss the strategy from three aspects. Firstly, the mould material and heat treatment of the material have a great effect on the service life of a mould. In respect with different requirements for the castings and various die casting conditions, people should choose the correct mould steel and optimal heat treatment, since it is really a very significant method to prolong the operation time.
Secondly, the look of the mould is another important factor. Therefore, when designing the mould, people should fully consider different factors on the building blocks of the options that come with the castings. They can give attention to these questions: whether the potency of the mould is sufficient; probably the pouring head works; possibly the cooling device or the warming device is reasonable. Last however, not least, to have the ability to prolong the operation time, new manufacturing technology must certanly be explored positively, such as for instance for example new nitriding method or titanizing method.