Production process of upper body of oil pan in new type engine was analyzed

and mould structure design was optimized with the help of CAE. The melting processing parameters are as follows: density of liquid aluminum alloy more than 2.65 g/cm3

pouring temperature keeping （760±20） ℃

refining for 4

6

min at 0.2

0

.3MPa with N2. Hot working tool steel W302 from the Sweden is selected as the die casting die materials

and stress-removal is performed to the mould at 3 000 times and 20 000 times. Vacuum system is assembled at the end of mold filling to ensure the compact structure. Based on project area

injection specific pressure and batches requirements

the 12 000 kN die casting machine with manipulator

automatic spraying-coating system and quantitative system is adopted. The product with excellent quality can be produced through strictly controlling melting process

die casting die and selecting die casting machine.