Gas assisted molding|Gas assisted plastic injection molding technology-Sino
G as assisted molding has widely used in plastic injection molding line, compared with traditional injection molding, gas assisting injection molding have many advantages. 1. S maller of delete sink mark, 2. L ower injection pressure makes product internal stress smaller, 3. S maller internal stress and bucking develops product size stability, 4. W ill save up to 50% raw material, 5. S hort cooling time leads production cycle time shorter, 6. A dopt short inject technology will make lower injection pressure and reduce the clamping force. S tandard air injection pressure is 7-25 MPa. Gas-assist molding technology procedure: F irst stage: Polymer Filling P olymer filling, form frozen layer in mold wall. S econd stage: Gas injection Nitrogen was injected into polymer melt, push it go ahead to fill the cavity. T hird stage: End of has injection T ill filling the whole cavity and form gas channel ...