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Stainless steel surface repairing technology and repairing paint

A surface repair and stainless steel technology, applied to special surfaces, devices for coating liquid on the surface, coatings, etc., can solve the problems of large color difference, serious pollution, and serious injury to the staff during the repair process, and achieve excellent anti-corrosion performance and surface protection. Neat and bright, prevent the effect of silver powder precipitation

Inactive Publication Date: 2017-05-10
石家庄国祥运输设备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of large color difference, serious pollution, and great harm to workers in the repair process of scratches, scratches, and oxidative discoloration of weld seams on the surface of rail vehicle air conditioner casings, the invention provides a stainless steel surface repair process and paint for repair. A technical solution for further coating the paint on the parts to be repaired by optimizing the combination of electroplating silver resin, aluminum silver paste, silver powder alignment agent, anti-scratch agent and leveling agent to obtain a paint that is basically consistent with the color and hue of the rail vehicle air conditioner casing. The surface of the repaired rail vehicle air conditioner casing is smooth and clean as before, the overall color and hue are consistent, and the process is simple and the construction operation is flexible

Method used

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  • Stainless steel surface repairing technology and repairing paint
  • Stainless steel surface repairing technology and repairing paint
  • Stainless steel surface repairing technology and repairing paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The paint for surface repair provided by the present invention is suitable for repairing the surface of stainless steel, especially for the repair of the surface of the SUS304 stainless steel casing of the rail vehicle air conditioner. Components: 31.0-42.0 parts of electroplating silver resin, 2.0-4.0 parts of aluminum silver paste, 0.28-0.5 parts of silver powder alignment agent, 1.0-3.0 parts of adhesion promoter, 1.2-2.5 parts of anti-scratch agent, 0.1-0 parts of leveling agent 0.8 parts and 53.0-59.0 parts of solvent;

[0036]Wherein, the silver plating resin can be widely selected from commercially available KMH-289 advanced silver plating resin, KMH-288 advanced halogen-free silver plating resin, KMH-2658 environment-friendly halogen-free silver plating resin, Y-092 silver plating effect resin and / or Or one or two or more of WRS-W-9901 electroplating silver resins are used for proportioning, preferably a mixture of cellulose acetate modified resin and acrylic mo...

Embodiment 2

[0060] Scratch and scratch repair process on the outer surface of rail train air conditioner SUS304 stainless steel casing

[0061] a. Visually find two scratches 4cm long, 2cm wide, and 0.2mm deep on the outer surface of the air conditioner casing, cut them into 2-3mm strips with 400-grit sandpaper, and polish along the extended direction of the scratch length. If there are no obvious scratch marks, it is considered to be flat. If it is scratched, use 400-grit sandpaper to cut the sandpaper into a suitable size according to the scratched area, and polish the scratched area until there is no obvious scratch mark, and then use a clean towel dipped in cleaning agent Wipe the area around the scratches and scratches until it is clean and free of granular attachments, and let it dry naturally.

[0062] b. Prepare paint

[0063] Measure according to the raw material components shown in Table 1 Proportion 1 in Example 1, and prepare the spray paint with reference to the production m...

Embodiment 3

[0065] Example 3 Repair process of oxidative discoloration of welding seam of rail train air conditioner 304 stainless steel casing mounting seat

[0066] a. After the large iron B-type mounting seat is welded to the side plate, the welding seam and the contact point of the side plate are seriously oxidized and discolored. The area of ​​discoloration and corrosion accounts for 15-20% of the area of ​​the mounting seat. Use a stainless steel wire brush to polish the discolored place. It is preferable to grind clockwise along the welding seam to remove the scale. The narrow area can be removed with copper tube emery cloth or a pen-type stainless steel wire brush. Wipe the treated part and surrounding parts clean and let it dry naturally;

[0067] b. Prepare paint

[0068] Measure according to the principle components shown in Table 1 Proportion 2 in Example 1, and prepare the spray paint with reference to the production method of the surface repair paint in Example 1, wherein, ...

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Abstract

The invention discloses a stainless steel surface repairing technology and repairing paint and relates to the field of coatings and metal surface repairing. According to the technical scheme, the stainless steel surface repairing technology includes the following steps that firstly, a to-be-repaired part is ground till the surface is flat according to a conventional process specification, and conventional cleaning is conducted; secondly, paint is prepared, and the raw materials of the paint include, by mass, 31.0-42.0 parts of plated silver resin, 2.0-4.0 parts of aluminum silver paste, 0.28-0.5 part of a silver powder arranging agent, 1.0-3.0 parts of an adhesive force accelerator, 1.2-2.5 parts of an anti-scratching agent, 0.1-0.8 part of a leveling agent and 53.0-59.0 parts of a solvent; and thirdly, the paint obtained in the second step is evenly sprayed to the to-be-repaired part treated in the first step. The stainless steel surface repairing technology and the repairing paint has the beneficial effects that the technology is simple, operation is flexible, the hardness of a paint film is high, the scratching resisting performance is high, the adhesion force is good, the color of the paint is highly similar to that of a stainless steel machine shell, and environment-friendly safety is high.

Description

technical field [0001] The invention relates to the fields of painting and metal surface repair, in particular to a stainless steel surface repair process and a paint for repair, and is especially suitable for surface repair of SUS304 stainless steel. Background technique [0002] With the improvement of people's requirements for comfort in the operation of rail vehicles, the installation of air conditioners has gradually become popular. Due to the huge amount of people and goods transported, the air fluidity in the compartment is poor, and scratches and scratches on the outer surface of the casing are inevitable. Rust on scratches and scratches, and oxidation and discoloration of the welding seam of the mount frequently occur. Currently, pickling and passivation treatment is usually used to deal with the rusting of scratches and scratches and the oxidation and discoloration of the welding seam of the mount. However, the above-mentioned process has many disadvantages, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/14B05D7/24C09D133/00C09D101/12C09D5/08C09D7/12
CPCB05D5/005B05D7/14B05D7/24B05D2202/15B05D2502/005B05D2518/00B05D2601/02B05D2601/10B05D2602/00C08K2201/011C09D5/08C09D7/61C09D7/62C09D7/63C09D133/00C08L1/12C08K13/06C08K9/00C08K2003/0806C08K2003/0812C08K2003/2227
Inventor 马爱民陈炳耀
Owner 石家庄国祥运输设备有限公司
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