( 3 ) curing : the film according to the provisions weighing, laminated Die curing, curing conditions , steam gauge pressure 0.6MPa, 7min.

(4) EVA foam manufacturer Methods: The model expansion method, that is after the curing time , curing machine open mold instant relief , the sample because of the role of the internal gas pressure expansion EVA foam manufacturer, hop pop mold cavity , then quickly test specimen dimensions , cooling at room temperature, parked 3d , test the same specimen size.

1.5 Performance Test

(1) EVA foam manufacturer ratio is calculated as follows :

EL = L2/L1 × 100%

Where , EL-EVA foam manufacturer ratio ,%; L1- mold cavity length , mm; L2- vulcanized test piece length , mm.

( 2 ) shrinkage ratio is calculated as follows :

RL = (LA-LB) / LA × 100%

Where , RL- shrinkage ,%; LA- curing specimens EVA foam manufacturer of mold dimensions Length , mm; LB- vulcanized specimen dimensions after cooling parked 3d length , mm.