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A treatment method for guardrails, columns and fasteners using Dacromet coating solution

A processing method and fastener technology, which can be applied to devices, coatings, special surfaces and other directions for applying liquid to the surface, which can solve the problems of low acid and alkali resistance of the coating, and achieve strong resistance to salt spray corrosion without easy The effect of peeling off and improving anti-corrosion performance

Active Publication Date: 2017-05-31
WEIFANG YUANDA METAL SURFACE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But present dacromet coating surface hardness and the defective of coating acid and alkali resistance are low, and there are many deficiencies in present treatment technology, the purpose of the present invention is to use a kind of utilizing dacromet coating to protect guardrail, column and How to handle fasteners

Method used

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  • A treatment method for guardrails, columns and fasteners using Dacromet coating solution

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with specific embodiments, and the advantages and characteristics of the present invention will become clearer along with the description. However, the examples are merely exemplary and do not limit the scope of the present invention in any way. Those skilled in the art should understand that the details and forms of the technical solutions of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention.

[0041] A method for treating guardrails, columns and fasteners by using dacromet coating solution, the steps are as follows:

[0042] Shaping → grinding → welding repair → shot blasting treatment → Dacromet treatment → sintering and curing → tempering and sealing → bundling and protective packaging; wherein, the above-mentioned shaping, grin...

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Abstract

The invention relates to a method for treating guard bars, stand columns and fasteners through Dacromet coating liquid and belongs to the field of guard bar protection. A coating formed through the method is high in salt fog resistance, not likely to be stripped and resistant to damp and heat, the surface hardness and acid and alkali resistance of the Dacromet coating are increased, and the corrosion resistance of the whole coating is improved.

Description

technical field [0001] The invention relates to a method for treating guardrails, columns and fasteners by using dacromet paint, which belongs to the field of guardrail protection. Background technique [0002] At present, the anti-corrosion treatment of domestic highway guardrails, columns and fasteners all adopts hot-dip galvanizing method. During the treatment process, the temperature of the zinc liquid reaches about 500°C, resulting in a large amount of energy consumption. The pickling in the treatment process uses 15-20% industrial hydrochloric acid. The anti-corrosion treatment process produces a large amount of acid mist. The water washing process will invade the remaining hydrochloric acid into the ground, and it will also be accompanied by the discharge of heavy metals such as lead and chromium. The surrounding environment will have an immeasurable impact. Therefore, there is an urgent need for a surface treatment method that replaces hot-dip galvanizing from the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/06B05D7/14
CPCB05D5/067B05D7/14B05D2401/21B05D2601/10
Inventor 耿雷张景平杨秀生魏震
Owner WEIFANG YUANDA METAL SURFACE TECH CO LTD
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