Process for obtaining high-wear-resistant friction-reducing composite function nano-coating

A nano-composite, high wear-resistant technology, applied in coatings, electrolytic coatings, etc., can solve the problem of unseen patents and research papers, coatings that cannot coordinate hardness and toughness, and composites of wear resistance, friction reduction and toughness that have not yet been seen. Problems such as the market of functional coating layers, to achieve the effect of easy promotion

Inactive Publication Date: 2003-08-13
重庆阿波罗机电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research and development of traditional composite electroplating only stays on the micron-scale particle size, and the obtained coating cannot coordinate the contradiction between hardness and toughness.
So far, there has not been a composite functional coating that integrates hardness, wear resistance, anti-friction and toughness on the market, and there have been no related patents and research papers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: The process of obtaining nickel-based nanocomposite functional electroplating layer on motorcycle engine block.

[0042]1. The main process flow: organic solvent degreasing→chemical degreasing→ultrasonic cleaning→pickling→nickel flash plating→electroplating semi-bright nickel→nickel-based nanocomposite electroplating→drying→oil immersion.

[0043] 2. Plating solution formula and process conditions for electroplating nano-composite nickel.

[0044] Nickel sulfate 370g / l

[0045] Boric acid 45g / l

[0046] Sodium chloride 15g / l

[0047] α-Al 2 o 3 Composite nano slurry 120g / l

[0048] Nano slurry additive 17g / l

[0049] Brightener 1ml / l

[0050] Wetting agent 0.5ml / l

[0051] D. k 4A / dm 2

[0052] t°C 55-65°C

[0053] pH 3.5-4

[0054] Because the cylinder body has very strict requirements on the thickness and uniformity of the coating, the present invention uses nickel-plated titanium tubes as the image-shaped posit...

Embodiment 2

[0064] Embodiment 2: The process of obtaining nickel-based nanocomposite functional electroplating layer on the chain.

[0065] 1. The main process flow: chemical degreasing → pickling → electroplating semi-bright nickel → nickel-based composite electroplating → drying → oil immersion.

[0066] 2. Plating solution formula and process conditions for electroplating nano-composite nickel:

[0067] With embodiment 1.

[0068] 3. Test results.

[0069] The electroplated chain of the present invention was tested in Chongqing Changjiang Chain Co., Ltd., and the company evaluated the plated chain of the present invention. The evaluation is now transcribed as follows:

[0070] 1) After the whole chain is nano-plated, the surface is bright and transparent, and the anti-rust process can be completely eliminated, and the anti-rust shelf life can reach more than 3 years.

[0071] 2) The coating of the nano-plated chain parts is in the range of 0.006-0.012mm, and its Vickers hardness ca...

Embodiment 3

[0074] Embodiment 3: The process of obtaining the nickel-based nanocomposite functional electroless coating on the gear.

[0075] 1. The main process flow: organic solvent degreasing → chemical degreasing → ultrasonic cleaning → pickling → nanocomposite electroless plating → drying → oil immersion.

[0076] 2. Process formula and process conditions of nano-composite functional electroless plating:

[0077] Nickel sulfate 25g / l

[0078] Sodium hypophosphite 30g / l

[0079] Sodium acetate 20g / l

[0080] Lactic acid 3g / l

[0081] α-Al 2 o 3 Composite nano slurry 120g / l

[0082] Sodium dodecyl sulfonate 1g / l

[0083] pH 3.7

[0084] t°C 86

[0085] time (h) 1

[0086] compressed air stirring

[0087] 3. Verify the result.

[0088] After the nanocomposite electroless plating is carried out to the gear with the present invention, the quality verification is carried out in Chongqing Qiutian Gear Co., Ltd., and the company's report on the electroplating quality verification...

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Abstract

An antiwear and friction-reducing nano-class plated layer is characterized by that its nickel plating liquid for electroplating or chemical plating contains the slurry prepared from nanoparticles of alpha-Al2O3 or SiC, which are uniformly dispersed in the plating liquid by stirring with compressed air. The resultant plated layer has features of high hardness and toughness, and high antiwear and friction-reducing function.

Description

technical field [0001] The discovery belongs to the technical field of surface treatment, and relates to a method of using α-Al on the surface of metal or non-metal 2 o 3 , SiC and other nanomaterials are obtained by composite electroplating or electroless plating to obtain nickel-based nanocomposite electroplating or electroless plating. The coating has high wear resistance and anti-friction properties, and can meet the surface treatment requirements of products used under friction conditions. technical background [0002] In order to seek high wear-resistant coatings, since the 1960s, people such as Tadao Hayashi in Japan have vigorously promoted the research and development of composite coatings. Since then, composite plating has become the most active research part in the development history of modern electroplating, with relatively rapid development and continuous expansion of application fields. In the late 1970s and early 1980s, Tianjin University, Xiamen Universit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25D15/00
Inventor 何洪胤陈敬全
Owner 重庆阿波罗机电技术有限公司
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