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Aluminium and aluminium alloy workpiece chemical plating nickel-phosphor-polytetrafluoroethylene ternary treating agent, and production method thereof

A polytetrafluoroethylene, electroless nickel-phosphorous plating technology, applied to aluminum and aluminum alloy workpiece electroless nickel-plated phosphorus polytetrafluoroethylene ternary treatment agent and production field, can solve difficult management and operation, high cost, and large usage And other problems, to achieve the effect of reducing coating cost, fast film forming speed and high hardness

Inactive Publication Date: 2015-06-17
DALIAN SANDAAOKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing nickel-phosphorus PTFE electroless plating solution needs to prepare the working solution and the adjustment solution in use, and needs to purchase three plating solutions such as A, B, and C, which is difficult to manage and operate, and there is still a large amount of use , the problem of high cost
In particular, there is no electroless nickel-plating phosphorus-PTFE ternary treatment agent for aluminum and aluminum alloy workpieces at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Raw materials and mass percentages used are as follows:

[0018] Nickel sulfate 9~12%

[0019] Sodium hypophosphite 9~12%

[0020] Lactic acid 9~12%

[0021] Sodium citrate 4~8%

[0022] Boric acid 3~6%

[0023] Tartaric acid 3~6%

[0024] Comprehensive phosphating treatment agent 1~2%

[0025] Particle size 0.1~0.3μm PTFE 6~9%

[0026] water balance.

[0027] Each raw material can be selected within the quality range, so that the sum of the quality is 100%.

[0028] The comprehensive phosphating treatment agent in the above raw materials is the product of Dalian Sanda Oak Chemical Co., Ltd., and the product model is SP-16.

[0029] The production method is carried out according to the following steps: add the calculated and weighed water into the reaction kettle, start the agitator, control...

Embodiment 2

[0031] Raw material and production method are all with embodiment 1, just raw material and mass percentage are as follows:

[0032] Nickel Sulfate 10%

[0033] Sodium hypophosphite 10%

[0034] Lactic Acid 10%

[0035] Sodium Citrate 6%

[0036] Boric acid 5%

[0037] Tartaric acid 5%

[0038] Comprehensive phosphating treatment agent 1%

[0039] Particle size 0.1~0.3μm PTFE 5%

[0040] water balance.

[0041] Add water according to 30% of the present invention to prepare working fluid, adjust pH value to 4.5~5.5, temperature 85~90°C, time 60~120min. The obtained coating is fine-grained and fine-grained, has high hardness and wear resistance, and the plating solution process is stable.

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Abstract

The invention discloses an aluminium and aluminium alloy workpiece chemical plating nickel-phosphor-polytetrafluoroethylene ternary treating agent. The aluminium and aluminium alloy workpiece chemical plating nickel-phosphor-polytetrafluoroethylene ternary treating agent comprises following raw materials, by mass, 9 to 12% of nickel sulfate, 9 to 12% of sodium hypophosphite, 9 to 12% of lactic acid, 4 to 8% of sodium citrate, 3 to 6% of boric acid, 3 to 6% of tartaric acid, 1 to 2% of a composite phosphorization treating agent, 6 to 9% of polytetrafluoroethylene with a particle size of 0.1 to 0.3<mu>m, and the balance water. A production method comprises following steps: weighed water is delivered into a reaction kettle; a stirrer is turned on, and rotating speed is controlled to be 120r / min; weighed nickel sulfate, sodium hypophosphite, lactic acid, sodium citrate, boric acid, tartaric acid, the composite phosphorization treating agent, and polytetrafluoroethylene with a particle size of 0.1 to 0.3<mu>m are delivered into the reaction kettle successively and slowly with stirring until a transparent solution is obtained; and the transparent solution is collected and packaged.

Description

technical field [0001] The invention relates to an electroless plating solution and a production method, in particular to a chemical plating solution with stable process, less usage, low cost, fast film forming speed, fine coating, high hardness, strong wear resistance and corrosion resistance, and easy operation and management. The invention relates to a ternary treatment agent for electroless nickel-plating phosphorus polytetrafluoroethylene on aluminum and aluminum alloy workpieces and a production method thereof. Background technique [0002] Electroless plating relies on the chemical reaction in the electroless plating solution to provide the electrons required for the reduction of metal ions. When the metal ions absorb the electrons, they are evenly deposited on the surface of the workpiece to form a coating. Since the dispersion force of the electroless plating solution is close to 100%, there is no obvious edge effect and the thickness of the coating is very uniform,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36
Inventor 潘德顺吕栓锁卢建明
Owner DALIAN SANDAAOKE CHEM