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Digging machine structural element coating method

A coating method and technology for structural parts, which are applied to devices for coating liquid on surfaces, coatings, pre-treatment surfaces, etc., can solve the problems of lack of elasticity of the putty layer, low efficiency of scratching and fine grinding, and easy cracking. Improve scratches and scale, save working time, and solve roughness

Inactive Publication Date: 2010-06-30
龙工(上海)机械制造有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although greasy scraping can improve the decorative appearance of the coating film on the surface of the object to be coated, it cannot improve the protective performance of the coating film, and the putty layer lacks elasticity and is easy to crack, which makes the entire coating film easy to be damaged
At the same time, the low efficiency of greasy scraping and fine grinding is a major bottleneck for the smooth operation of the assembly line

Method used

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  • Digging machine structural element coating method
  • Digging machine structural element coating method
  • Digging machine structural element coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Such as figure 1 As shown, it is a flow chart of a coating method for excavator structural parts provided by the present invention, and its steps are:

[0016] Step 1. Hang up the structural parts of the excavator and perform shot blasting on them;

[0017] Step 2. Carry out respray treatment on the surface of the excavator structural parts after shot blasting;

[0018] Step 3, roughly grinding the surface of the excavator structural parts that have undergone respraying treatment;

[0019] Step 4, apply the primer, then scrape and bake the primer, and grind it finely after completion;

[0020] Step 5. Apply the topcoat, level off the topcoat and bake it, then force cool it, and finally remove the structural parts of the excavator from the shelf.

[0021] The parameter contrast before and after implementing a kind of excavator structural part coating method provided by the present invention is shown in the table below:

[0022]

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PUM

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Abstract

The invention relates to a digging machine structural element coating method, which comprises the following steps: firstly, hanging a digging machine structural element for carrying out ball blasting treatment on the digging machine structural element; carrying out spraying supplementing treatment on the surface of the digging machine structural element after the ball blasting treatment; carrying out primer coating; subsequently, carrying out putty scrapping and baking the primer; carrying out fine grinding after the completion of the putty scrapping and the primer baking; coating finish paint; intensively cooling the finish paint after the casting baking; and finally, taking the digging machine structural element down from a frame. The invention is characterized in that the surface of the digging machine structural element after the spraying supplementing treatment carries out coarse grinding. The invention has the advantages that the phenomena of roughness, collision, scratch, oxide coating and the like can be solved, and the operating efficiency of the production line is improved.

Description

technical field [0001] The invention relates to a coating method for structural parts of an excavator, belonging to the technical field of excavator coating pretreatment. Background technique [0002] The surface of the structural parts of the excavator will inevitably have roughness, bumps, scratches and scales during the process of manufacture and operation. Before the primer is applied, shot blasting and sandblasting are generally used to deal with the above defects. However, shot blasting cannot completely solve problems such as roughness, scale, bumps, and bumps. In order to solve the above problems and increase the appearance of the structural parts, the structural parts of the excavator are usually scraped and finely ground in a large area after the primer is applied. Although greasy scraping can improve the decorative appearance of the coating film on the surface of the object to be coated, it cannot improve the protective performance of the coating film, and the pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/38B05D3/12
Inventor 郑可文李强高柏元
Owner 龙工(上海)机械制造有限公司
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