Manufacture method of high-temperature resistant glass reinforced plastics mould

Abstract

The invention belongs to the field of aviation material composites and in particular relates to a manufacture method of a high-temperature resistant glass reinforced plastics mould. Due to the adoption of a glass fiber reinforced polymer based composite technology, the manufacture of a large composite part forming tool can be realized; a glass reinforced plastic forming mould which meets the cost requirement and the usage requirement is manufactured. The invention discloses a low-cost glass reinforced plastic mould capable of being cured and demoulded at 100 DEG C and resisting a temperature of 160 DEG C, so that the rigidity and the temperature resistance of the mould can meet the use requirement; meanwhile, the mould is low in cost and light in weight, and can be used repeatedly; the technical problems of temperature resistance and high cost of a large aviation composite product forming mould can be solved.

Description

technical field [0001] The invention belongs to the field of aviation material composite materials, in particular to a method for manufacturing a high-temperature-resistant glass fiber reinforced plastic mold. Background technique [0002] Forming molds for composite parts usually need to select suitable materials for processing and manufacturing according to comprehensive factors such as forming temperature, number of uses, and cost. Commonly used materials include wood, gypsum, epoxy resin mortar, glass fiber reinforced plastic, steel and so on. The molding temperature of a large aviation composite part is up to 130°C. When ordinary epoxy resin plastic sand molds are used for molding, when the temperature exceeds 100°C, the mold will bulge, crack, and deform seriously, which cannot meet the requirements of high-temperature molding at all. The cost of using metal molds is quite high for large parts, and the large difference in thermal expansion coefficients of materials le...

AI Technical Summary

Problems solved by technology

The molding temperature of a large aviation composite part is up to 130°C. When ordinary epoxy resin plastic sand molds are used for molding, when the temperature exceeds 100°C, the mold will bulge, crack, and deform seriously, which cannot meet the requirements of high-temperature molding at all. ;The cost of using metal material molds is quite high for large parts, and due to the large difference in thermal expansion coefficients of materials, the size deviation of parts is large, which directly affects assembly; in addition, metal molds are not only expensive, but also heavy and difficult to handle

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