A kind of manufacturing method of high temperature resistant glass fiber reinforced plastic mold

Abstract

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. Using glass fiber reinforced polymer-based composite material technology, the manufacturing problem of large-scale composite material parts forming tooling is solved, and a glass fiber reinforced plastic forming mold that meets the cost and use requirements is manufactured. The invention proposes a 160°C low-cost FRP mold that can be solidified and demolded at 100°C, so that the rigidity and temperature resistance of the mold can meet the requirements of use, and the cost is low, the weight is light, and it can be used repeatedly. It solves the technical problems of high temperature resistance and high cost of forming molds for large-scale aviation composite materials.

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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