The squeeze casting mould design of the air conditioning compressor cover and its simulation analysis were carried out.The parameters were calculated including extrusion pressure

demoulding force

ejecting force

clamping force and runner size.The main parting surface was determined based on center part of the side-core holes and the workpiece maximum cross section.The overflow slot with ladder structure was adopted.To accelerate exhaustion

exhausted channel was connected at the overflow slot

and the exhausted block was set.The angle pin and plate type core pulling mechanism was considered.The distance of cooling channel center line and the cavity surface is 1

2

times of the cooling channel diameter.The center distance between the cooling channels is 3

5

times of the cooling channel diameter.Gating system meet the requirement of the sequential solidification principle

and the parts can be feed smoothly during solidification

avoiding the shrinkage porosity（holes）.