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 size, 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.

(3) physical and mechanical properties at HG/T3086-1999 testing.

Asker C hardness at HG/T2489-1993, dense layer without removing the surface of the sample tested; compressive deformation at HG/T2876-1997 test; apparent density by HG/T2872-1997 tested.

(4) the appearance of quality determination: visual to the naked eye, the surface no bubbles, no porosity profile as normal.