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In our surrounding, thick slices blister is more common in the application of the passenger car with thick plates special semi-automatic blister forming machine processing production, thick blister products generally has a large area, the height is big, the characteristics of the material thickness, special blister thickness of 0.14 to 10 mm thick, can substitute for plastic injection products, has low mould cost, short production cycle, mould development time is short, etc.

Car gear tray, car travel case, etc. Is made of HDPE thick plastic sheet, PE is a high degree of crystallisation, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, in the thin section of a certain degree of translucent. PE has excellent resistance to most domestic and industrial chemicals.

The production of large thick plate blister first to produce and process the blister mold, need to make good blister mold according to the customer's requirements and specifications. Under normal circumstances, the material of blister mould uses gesso, also useful woodcarving and the product of metal carving make mould.

After making the gesso mould that should be used in the process of large thick plate blister, let its natural dry completely first or be dry, according to the specific situation of convex and concave of product surface next, drill with 1-2 mm spends the low concave place that does not affect the appearance of product packaging to drill a lot of small holes. In order to blister production, the air can be drawn out, after the mold is drilled well, the gypsum mold should be hardened by soaking in the saturated liquid of concentrated alum.

After the thick plate blister mould is completely dried, the mould is loaded into the iron plate on the upper layer of the vacuum chamber. Then according to the mold size, the plastic sheet is loaded into the applicable specifications; Put the sheet into the heating wooden cabinet, make it completely fixed, and then put the wooden cabinet and plastic sheet on the constant temperature furnace for softening treatment.

When the thick plate is vacuuming, the softened plastic sheet shall be placed in the vacuum chamber together with the wooden cabinet, and the suction switch shall be switched on to make the vacuum indoor air be sucked out clean; After the plastic sheet is cooled, the same concave packaging or process mold as the mold can be obtained.