Electric self-heating die and forming method of glassfiber reinforced plastics

Abstract

The invention relates to an electric self-heating die, and belongs to the technical field of production and manufacture of a composite material. The electric self-heating die comprises a die base and a controller, wherein a flexible electric heating line is arranged in the die base; a semiconductor chilling plate is arranged in the die base and at the position below the flexible electric heating line; a temperature sensor is further arranged in the die base; and the flexible electric heating line, the semiconductor chilling plate and the temperature sensor are connected with the controller. The electric self-heating die and the forming method of glassfiber reinforced plastics have the benefits that the electric self-heating die can improve the forming quality of the composite material during the injection molding process and further improve the surface thickness uniformity.

Description

Technical field: [0001] The invention belongs to the technical field of composite material production and manufacturing, and in particular relates to an electric heating self-heating mold and a method for forming glass fiber reinforced plastics by using the same. Background technique: [0002] Since the beginning of the 21st century, the global composite material market has grown rapidly. The composite material industry has gained an increasingly important position in the automotive industry, railway projects, and large aircraft projects. Low-cost, short-term cycle and other requirements and challenges. In the prior art, the intelligent temperature control of large-scale composite mold parts relies on large-scale curing furnaces. The demand for production equipment and energy consumption have disadvantages, and the application scenarios are not flexible. [0003] In addition, some composite materials may cause defects in the product due to uneven temperature of the self-hea...

AI Technical Summary

Problems solved by technology

In the existing technology, the temperature control of large-scale composite mold parts is intelligently completed by large-scale curing furnaces. The demand for production equipment and energy consumption have disadvantages, and the application scenarios are not flexible.

[0003] In addition, some composite materials may cause defects in the product due to uneven temperature of the self-heating mold and inconsistent cooling speed during the manufacturing process, such as inconsistent thickness, cracks on the surface of the material, or defects such as tiny cracks inside, which affect the quality of the product.

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