Gas-Assisted Injection Molding (Gaim) is an innovative molding technology where the compressed gas is introduced into the mould to create hollow sections

to pressurize plastics during cooling

to eliminate shrinkage and to complete mould filling. Compared with a conventional injection molding

Gaim process presents many advantages and benefits such as reducing the moulding weight

reducing the molding circle

avoiding the sink marks. This technology has been widely used in abroad in the field of TV sets and other appliances

cars

furniture

etc. However

gaim process concerns within the mould with a two - phase complex flow of molten polymer and pressurized gas. Computer aided flow analysis is very important in achieving successful applications with the complications in part

mould and process design.