A kind of composite material subway operating platform panel and its manufacturing process

Abstract

The invention relates to a composite subway operation panel and a manufacturing process. The panel comprises an innermost flame retardant unidirectional carbon fiber layer, flame retardant 3K carbon fiber layers and outermost flame retardant glass fiber layers in sequence from inside to outside, wherein the flame retardant 3K carbon fiber layers are arranged on both sides of the flame retardant unidirectional carbon fiber layer, and the outermost flame retardant glass fiber layers wrap the flame retardant 3K carbon fiber layers; a reinforcing metal part is bonded to the surface of the lower flame retardant glass fiber layer during installation; a key hole, a button hole and a push-pull rod hole are formed in the composite subway operation panel; and both the button hole and the push-pull rod hole pass through the flame retardant glass fiber layers, the flame retardant unidirectional carbon fiber layer, the flame retardant 3K carbon fiber layers and the reinforcing metal part, and the key hole is a blind hole. The manufacturing process of the panel comprises the following steps of (1) forming a rough blank; (2) performing numerical control machining; and (3) bonding. The composite subway operation panel has the advantages of good insulation, good machinability, good flame retardance, good mechanical properties and good rigidity.

Description

technical field [0001] The invention relates to a composite material subway operating table panel and a manufacturing process, belonging to the rail transit industry. Background technique [0002] With the rapid development of the rail transit industry, composite materials have been widely used in the rail transit industry because of their excellent mechanical properties and light weight. [0003] The current subway console panels include the following: [0004] Aluminum alloy material: In order to achieve a certain strength, the general aluminum alloy console panel needs to be processed to a thickness of 5-10mm. As the thickness increases, the weight of the console rises linearly. In addition, in order to ensure the overall insulation, the general aluminum alloy operating table must be sprayed with insulating varnish. When the varnish falls off during subsequent use, there is a risk of electric leakage, and the fatigue performance of aluminum alloy is poor, and the joints ...

AI Technical Summary

Problems solved by technology

In addition, in order to ensure the overall insulation, the general aluminum alloy operating table must be sprayed with insulating paint. After the paint falls off during subsequent use, there is a danger of leakage, and the fatigue performance of aluminum alloy is poor, and the joints are easy to crack and damage

[0005] FRP material: the general FRP material operating table panel is formed by glass fiber and unsaturated polyester wet method, the mechanical properties of the product after molding cannot be guaranteed, the molding process lacks stability, the flame retardancy of general unsaturated resin cannot be guaranteed, and the rigidity of FRP is relatively high. Poor, if it is necessary to ensure rigidity, it is necessary to thicken the panel, so that the weight of the panel will increase geometrically, and it is difficult to engrave on the subsequent panel of the FRP panel, and the process is difficult to choose. It is easy to crack if it is mechanically engraved, and it is easy to use laser engraving. burnt

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