Based on blanking drawing of piston and design of mould
squeezing casting 190 type Al-Si piston was conducted.The rational processing parameters for squeezing casting 190 type Al-Si alloy piston are as follows:pressure of 71.3
7
9.2 MPa
pressure time less than 60 s
pressure velocity of 0.004
0
.006 m/s
and holding pressure time of 110
1
30 s.In addition
the pre-heating of mould
coating and pouring as well as slag removal were described.