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Phosphorization bolt friction coefficient stabilizer and preparation method thereof

A friction coefficient and stabilizer technology, applied in metal surface treatment and application fields, can solve the problems of engine high-strength bolts failing to meet design requirements, imported products difficult to meet assembly requirements, etc., achieving good corrosion resistance, low cost, and simple operation. Effect

Active Publication Date: 2013-08-14
十堰达克罗涂覆工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the domestic production of the high-strength bolts of the above-mentioned engines cannot meet the design requirements, and at the same time, the imported products are difficult to meet the assembly requirements due to transportation restrictions, and propose a method that can control a small friction coefficient and have better anti-corrosion properties. High-performance engine high-strength phosphating bolt friction coefficient stabilizer and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Select 15% engine oil, 10% fatty acid, 10% triethanolamine, 1% 105 cleaning agent, 1% ethylene glycol fungicide, 4% silicone oil defoamer, and 59% pure water according to the ratio; Add fatty acid and silicone oil components into the container, add pure water to dissolve, then add triethanolamine, emulsifier, bactericide, defoamer in sequence according to the proportion, stir to dissolve and make to volume.

[0030] The 12.9-grade high-strength bolts of the DCi11 engine are phosphating, immersed in the stabilizer, and then taken out to dry. Through the treatment of the friction coefficient stabilizer in this embodiment, the friction coefficient (mean value) is reduced from the original 0.12 to 0.075, and the dispersion is reduced from 0.02 to 0.01, which is strictly controlled within the range of 0.075±0.015, achieving a good friction control Coefficient and anti-corrosion effect.

Embodiment 2

[0032] Select spindle oil 20%, fatty acid 12%, triethanolamine 10%, op-10 emulsifier 2%, fungicide 0.5%, silicone oil 3%, purified water 52.5% according to the ratio; Put the components into the container, add pure water to dissolve, then add triethanolamine, emulsifier, bactericide, and defoamer in sequence according to the proportion, stir to dissolve and constant volume.

[0033] The 12.9-grade high-strength bolts of the DCi11 engine are phosphating, immersed in the stabilizer, and then taken out to dry. Through the treatment of the friction coefficient stabilizer in this embodiment, the friction coefficient (mean value) is reduced from the original 0.12 to 0.075, and the dispersion is reduced from 0.02 to 0.01, which is strictly controlled within the range of 0.075±0.015, achieving a good friction control Coefficient and anti-corrosion effect.

Embodiment 3

[0035] According to the ratio, select engine oil 19.5%, fatty acid 6%, triethanolamine 9%, Tween emulsifier 1%, ethylene glycol fungicide 0.5%, silicone oil 5%, purified water 60%; Add the silicone oil component into the container, add pure water to dissolve, then add triethanolamine, emulsifier, bactericide, and defoamer in sequence according to the proportion, stir to dissolve and constant volume.

[0036] The 12.9-grade high-strength bolts of the DCi11 engine are phosphating, immersed in the stabilizer, and then taken out to dry. Through the treatment of the friction coefficient stabilizer in this embodiment, the friction coefficient (mean value) is reduced from the original 0.12 to 0.075, and the dispersion is reduced from 0.02 to 0.01, which is strictly controlled within the range of 0.075±0.015, achieving a good friction control Coefficient and anti-corrosion effect.

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Abstract

The invention relates to a phosphorization bolt friction coefficient stabilizer and a preparation method thereof. The stabilizer comprises the following components in percentage by mass: 10%-20% of base oil, 6%-15% of fatty acid, 8%-12% of triethanolamine, 1%-2% of emulsifying agent, 0.5%-1% of bactericide, 3%-5% of silicone oil and 48%-60% of purified water, wherein various machine oils and spindle oils are selected as the base oil. The preparation method of the stabilizer comprises the following steps of: firstly adding a design amount of base oil, fatty acid and silicon oil to a container, adding the purified water for dissolving, then sequentially adding the triethanolamine, the emulsifying agent, the bactericide and a defoaming agent according to proportioning, stirring, dissolving and filling a volumetric flask, thus the phosphorization bolt friction coefficient stabilizer can be used. The phosphorization bolt friction coefficient stabilizer has good capacity of resisting oxidation, acid gas, discoloration and dampness; a lubricating film formed on the surface of a phosphating film stabilizes the friction coefficient of a fastener to be in the range of 0.06-0.09; and the friction coefficient of phosphorization bolts is controlled in the range of 0.075+ / -0.015, thus the effects of controlling the friction coefficient very well and resisting corrosion are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment and application, and relates to the friction coefficient control of phosphating bolts, in particular to a high-strength engine bolt, that is, a phosphating bolt friction coefficient stabilizer and a preparation method thereof. Background technique [0002] With the improvement of the requirements for the corrosion resistance and assembly performance of automobiles, the standards for the corrosion resistance and assembly performance of automobile fasteners are also getting higher and higher. Corrosion resistance and assembly performance have made great efforts. Especially for automotive fasteners, it is required to meet both corrosion resistance and stable friction coefficient, and it is quite difficult to achieve these two conditions at the same time. [0003] After the pre-treatment of auto parts, the following processes are mainly completed: oil removal (acid or alkaline oil rem...

Claims

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Application Information

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IPC IPC(8): C10M173/02C10N30/10C10N30/06C10N80/00
Inventor 易鹏
Owner 十堰达克罗涂覆工贸有限公司
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