Method for painting external windshield rubber
A rubber and paint technology, applied in the device, coating, grinder and other directions of coating liquid on the surface, can solve the problem of rubber paint without external windshield, and achieve the effect of good weather resistance, good elasticity and improved activity
Active Publication Date: 2013-03-20
CRRC TANGSHAN CO LTD
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Problems solved by technology
[0003] The outer windshield of high-speed EMUs is generally made of high-elastic and wear-resistant rubber material, and it is required to paint the high-elastic and wear-resistant rubber material, but there is currently no suitable method for painting the outer windshield rubber
Method used
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0027] First, the method for painting the rubber of the exterior windshield of the present invention is generally introduced.
[0028] Such as figure 1 As shown, this method includes:
[0029] S101: placing the rubber to be painted on the hanger;
[0030] S102: Drying the rubber for the first time;
[0031] S103: grinding the rubber;
[0032] S104: Spray coating material on the rubber.
[0033] The outer windshield rubber generally uses EPDM. When EPDM rubber...
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The invention provides a method for painting an external windshield rubber, comprising the following steps of: placing the rubber to be painted on a hanging tool; drying the rubber for the first time; polishing the rubber; and spraying a coating material on the rubber. In the method, the rubber is fixed to an arc-shaped polishing tire to be polished, so that incomplete polishing owing to the polishing of rubber can be prevented. In the method, after polishing the rubber, a surface of the rubber is passivated so as to perfect activity of the rubber surface and improve bonding force between the rubber and the coating layer. In the invention, modified acrylic acid polyurethane primer and modified acrylic acid polyurethane finishing paint are used as the primer and the finishing paint of the rubber, the primer and the finishing paint are high-temperature resistant and low-temperature resistant, and have good elasticity, a paint film cannot be in brittle fracture at -40 DEG C and cannot be adhesive at +80 DEG C, and has good weather fastness.
Description
technical field [0001] The invention relates to rail vehicle manufacturing technology, in particular to a method for painting exterior windshield rubber. Background technique [0002] The windshield is the soft connection part between rail vehicles, which is divided into inner windshield and outer windshield. Its function is to relieve mutual extrusion and relative movement between vehicles when the train is braking; to provide safety for passengers when the train is running normally. aisle. At present, the windshield of medium and low-speed rail vehicles is made of vulcanized rubber, and its surface is not coated. The inner windshield of the high-speed EMU can be a safe passage for passengers, and the outer windshield can reduce and isolate the noise outside the car. At the same time, it can also make the arc connection between the two vehicles smooth and consistent, so as to reduce the air resistance when the high-speed EMU is running. [0003] The outer windshield of hi...
Claims
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IPC IPC(8): B05D7/02B05D3/00B05D3/02B24B19/22
Inventor 张宝祥孙玉英袁彩霞
Owner CRRC TANGSHAN CO LTD