A kind of roof bonding composite process for rail vehicles
A rail vehicle and composite process technology, which is applied in the field of rail vehicle roof bonding composite technology, can solve the problems that cannot meet the aesthetic requirements, the appearance of the porous plate bonded composite workpiece is not beautiful, and the sprayed surface is uneven.
Active Publication Date: 2020-10-23
QINGDAO VICTALL RAILWAY CO LTD
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Problems solved by technology
During the bonding process of the porous plate and the aluminum plate, if the above-mentioned bonding composite process is adopted, due to the influence of uneven coating and spraying of the adhesive layer or the flow of the glue at high temperature after hot-press bonding and compounding, residues will remain in the pores of the porous plate. Glue, the residual glue in the hole is uneven, after the workpiece is painted, the surface of the paint sprayed in the hole is not smooth, resulting in the appearance of the composite workpiece bonded by the porous plate is not beautiful, and cannot meet the aesthetic requirements of the product as an interior appearance part of a rail vehicle
Method used
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[0016] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0017] A roof bonding composite process for rail vehicles, comprising the following steps:
[0018] a. Material preparation inspection: According to the operation plan and operation instructions, check the aluminum plate 2 on the back of the workpiece, the perforated plate 4, and the low-viscosity aluminum plate received. Weld LV 1510 epoxy resin adhesive 3, check the surface quality and key dimensions of the workpiece;
[0019] b. Work piece cleaning: first use a blower to blow off the dust, aluminum chips, impurities and other dirt on the back aluminum plate 2 and po...
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Abstract
The invention discloses a top plate adhering and compositing process for a railway vehicle, belonging to the technical field of an adhesion method for porous plates and aluminum plates of the railwayvehicle. The process comprises the following steps: stock detection, workpiece cleaning, adhesive preparation, non-woven fabric gluing, porous plate transfer, adhesion, compositing and pressure reliefdetection. According to the top plate adhering and compositing process, the vacuum adsorption adhesion is carried out by virtue of a workpiece compositing adhesion tool and a non-woven fabric glue transfer, so that no residue is remained in the porous plates after the porous plates are adhered and composited, the adhesion strength is completely accordant with design requirements, and the processis safe and reliable; and the attractive appearance of a composite plate after painting is further guaranteed, the operation is convenient, and the cost is low.
Description
technical field [0001] The invention belongs to the technical field of a bonding method between a perforated plate and an aluminum plate for a rail vehicle, and in particular relates to a bonding composite process for a top plate for a rail vehicle. Background technique [0002] The bonding and compounding process involved in the existing rail vehicles can be roughly divided into two categories. First, liquid or solid adhesives are used to directly smear or spray on the workpiece, and use a squeegee or brush to spread evenly, and then apply cold on the press. Bonding and compounding is carried out by pressing or hot pressing, and the second is to spread a solid adhesive film between the workpieces that need to be bonded and compounded, and use a press to bond and compound by hot pressing. During the bonding process of the porous plate and the aluminum plate, if the above-mentioned bonding composite process is adopted, due to the influence of uneven coating and spraying of th...
Claims
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IPC IPC(8): B32B37/06B32B37/10B32B37/12B32B38/00B32B38/16
Inventor 孙建文刘皓锋昌许刘忠秋
Owner QINGDAO VICTALL RAILWAY CO LTD