A kind of inspection and repair process method for the outer windshield assembly of high-speed rail EMU

Abstract

The invention belongs to the technical field of overhaul technology, and proposes an overhaul process method for the outer windshield component of a high-speed rail EMU, including component inspection, component paint removal, component paint removal post-treatment, component painting treatment, and topcoat treatment, the key points of which are: When the component is the outer windshield frame, the paint removal of the component refers to sanding the frame, that is, sanding the frame with a sander; when the component is the outer windshield capsule, the paint removal of the component refers to the capsule grinding , that is, use a pneumatic grinding disc to polish the outer windshield capsule. The maintenance process method of the present invention not only improves the labor efficiency, reduces the production cost, but also reduces the pollution to the surrounding environment, and can meet the requirements of environmental protection.

Description

technical field [0001] The invention belongs to the technical field of overhaul technology, and relates to an overhaul process method for an outer windshield assembly of a high-speed rail train set. Background technique [0002] The outer windshield frame of the high-speed rail EMU is made of welded aluminum alloy profiles, and the surface is sprayed with RAL3012 primer + RAL1002 primer + Chinese white topcoat. The material of the outer windshield capsule of the high-speed EMU is EPDM series rubber, which is processed and produced by hot molding and vulcanization; the surface of the outer windshield capsule is sprayed with "modified acrylic polyurethane primer + acrylic polyurethane topcoat". The outer windshield frame, the outer windshield capsule and the bead are connected by bolts to form the outer windshield of the vehicle body. It is located at both ends of the vehicle and is directly exposed to the atmospheric ozone layer. It has been exposed to wind, sunlight, and ult...

AI Technical Summary

Problems solved by technology

[0004] The current five-level maintenance process for the outer windshield frame uses the chemical reagent soaking method for the frame to remove paint. The existing four-level maintenance process for the outer windshield capsule uses the chemical reagent soaking method for the paint removal of the capsule. The soaking time of this paint removal method is long. Partial paint removal is poor, requiring secondary treatment; waste chemical reagent treatment process is complicated and costly; and it pollutes the surrounding environment heavily, which cannot meet environmental protection requirements

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