PEI (Polyetherimide) thick plate plastic suction molding method

Abstract

The invention discloses a PEI (Polyetherimide) thick plate plastic suction molding method. The PEI thick plate plastic suction molding method comprises the steps of designing a plastic suction mold, sampling and molding the plastic suction mold, manufacturing a PEI thick plate through plastic suction, processing through a punching machine, and inspecting and checking; carries out plastic suction molding treatment on the PEI thick plate according to the above five steps; and comprises the following concrete steps of (1) designing the plastic suction mold, (2) sampling and molding the plastic suction mold, (3) manufacturing the PEI thick plate through plastic suction, (4) processing through the punching machine, and (5) inspecting and checking. During the sampling and molding process of theplastic suction mold, copper plating treatment is carried out on an inner wall of a molded high-temperature alloy mold, a copper liquid is casted on the inner wall of the high-temperature alloy mold through a heating manner, and then cooling and polishing treatment is carried out to enable the inner wall to be smooth, so that by utilizing the processing manner, on one hand, the mold manufacturingcost can be reduced, and on the other hand, the smoothness of a finished product can be improved.

Description

technical field [0001] The invention relates to the technical field of PEI thick plate blister forming, in particular to a PEI thick plate blister forming method. Background technique [0002] PEI sheet is an amorphous plastic, which is an amorphous high-performance polymer. It is made of engineering plastics made of amorphous PEI (polyetherimide) and extruded by an extruder at high temperature. Also known as vacuum forming, it is one of the thermoforming methods of thermoplastics, that is, the sheet or plate material is clamped on the frame of the vacuum forming machine, heated and softened, and then adsorbed to the mold by vacuum through the air channel on the edge of the mold , after a short period of cooling, a molded plastic product is obtained. [0003] Traditionally, the molds used in the plastic forming process of PEI thick plates are mainly copper tools and plaster tools. Copper tools can effectively ensure the smoothness of the finished product surface, but the co...

AI Technical Summary

Problems solved by technology

[0003] Traditionally, the molds used in the plastic forming process of PEI thick plates are mainly copper tools and plaster tools. Copper tools can effectively ensure the smoothness of the finished product surface, but the cost is high, while the cost of superalloy molds is low, but The surface smoothness of the finished product is not enough, and the traditional inspection method for the finished product in the processing of PEI thick plate is relatively backward, the detection effect is not good, and the processing steps of PEI thick plate blister forming are not systematic enough