Effects of die casting machine

die casting die structure and processing parameters on quality of die castings were described

and countermeasures were presented. It is pointed out that un-qualified hydraulic unite can affect the performance of die casting machine due to resulting in the oil-leakage of the machine and inside-leakage of hydraulic system. The conventional mould with divided mould frame and clamping plate is feasible for the mechanism with slide free. Howeser for the mechanism with slide

especially larger slide

amould frame should be designed to the whole structure. The acceptable preheating temperature for the die and melting temperature as well as pouring temperature are in range of 150

1

80℃

700

7

20℃

650

6

80℃

respectively. The die casting aluminum alloy parts with thick wall should select a lower melting temperature

a higher pressure-increment and a more near fast injection stroke

while thin-walled parts should select a higher melting temperature and a lower pressure-increment and a longer fast injection stroke.