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Method for treating surface of high-strength fastener

A processing method and technology for fasteners, which are applied to devices, chemical instruments and methods, cleaning methods and utensils for coating liquids on surfaces, etc. Ease of use, no loss of metal, no cracking or damage effect

Inactive Publication Date: 2020-12-25
苏州汇铭源工业零部件有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment method for the surface of high-strength fasteners, so as to solve the problem that the existing treatment methods proposed in the above-mentioned background technology are prone to hydrogen embrittlement during the treatment process, thereby causing cracks or damage to the fasteners the phenomenon of the problem

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  • Method for treating surface of high-strength fastener

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Embodiment Construction

[0028] 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.

[0029] see figure 1 , an embodiment provided by the present invention: a method for treating the surface of a high-strength fastener, comprising the following steps:

[0030] Step 1: Degreasing;

[0031] Step 2: Laser removal of scale;

[0032] Step 3: electroplating treatment;

[0033] Step 4: Reduce hydrogen embrittlement processing;

[0034] Step five: chromate passivation treatment;

[0035] Step six: drying process;

[0036] Step 7: apply grease;

[0037] Step 8: Remove and drain.

[0038] Further, in step 1, place high-strength fasteners in organic solvents, such as kerosene, light diesel oil, gasoline, acetone, alcohol, and trichloroethylene, and then u...

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Abstract

The invention discloses a method for treating the surface of a high-strength fastener, relates to the field of methods for treating the surfaces of fasteners in the field of fasteners, and aims to solve the problem that a fastener is cracked or damaged due to the fact that hydrogen embrittlement is easily generated in the treatment process of an existing treatment method. The method comprises thefollowing steps: step 1. degreasing; step 2. removing oxide skin by laser; step 3. performing electroplating treatment; step 4. performing hydrogen embrittlement reduction processing; step 5. performing chromate passivation treatment; step 6. performing drying treatment; step 7. coating grease; and step 8. taking out and draining.

Description

technical field [0001] The invention relates to the field of treatment methods for fastener surfaces in the field of fasteners, in particular to a treatment method for surfaces of high-strength fasteners. Background technique [0002] Surface treatment is a method of artificially forming a surface layer on the surface of a base material with mechanical, physical and chemical properties different from that of the base. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. As a kind of hardware, fasteners form a covering layer on the surface. After a series of surface treatments, they can be It presents a more beautiful appearance, including the anti-corrosion performance of the fastener itself will be greatly improved. In fact, the surface treatment of the fastener is secondary to the appearance. The most important purpose is to make the fastener itself stronger. Corrosion re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/00C25D3/00C25D5/48C25D5/34C23G5/02B08B7/00C23C22/00B05D7/14B05D7/24
CPCC25D7/00C25D3/00C25D5/48C25D5/34C23G5/02B08B7/0042C23C22/00B05D7/14B05D7/24
Inventor 熊八一
Owner 苏州汇铭源工业零部件有限公司
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