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Cobalt-tungsten-iron-nickel alloy electroplating liquid

A technology for electroplating solution and nickel alloy, applied in the field of alloy electroplating solution, can solve the problems of slow electrodeposition, limited application scope, microcracks on the surface, etc., and achieves less environmental damage, stable process, good corrosion resistance and friction resistance. Effect

Inactive Publication Date: 2010-12-29
乔瀚文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above plating types have disadvantages such as high brittleness (iron-tungsten alloy), slow electrodeposition speed (iron-nickel-tungsten alloy), and microcracks on the surface, which limit their application range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First configure the complexation-stabilizing solution: weigh 24 grams of sodium citrate, 12 grams of sodium pyrophosphate, 10 milliliters of phytic acid, and 5 milliliters of ascorbic acid, add 500 milliliters of deionized water, stir until dissolved; measure 5 milliliters at room temperature Add oxalic acid with a concentration of 28% to the above solution, weigh 1 g of cobalt sulfate, 20 g of ferrous sulfate, and 20 g of nickel sulfate, and stir until dissolved at room temperature; then heat it to 65°C with a water bath, and weigh 20 g of sodium tungstate , 5 grams of ammonium sulfate and added to the solution, stirred until dissolved; add 2 milliliters of brightener prepared with 1,2-propanediol, formaldehyde and dimethylhexynol, and then add deionized water to make the solution to 1000 milliliters , use sodium hydroxide solution to adjust the pH value to 6; the temperature of the plating solution is heated to 65°C, the stainless steel is used as the anode, the workpi...

Embodiment 2

[0024] Prepare the complexation-stabilizing solution first: weigh 24 grams of sodium citrate, 12 grams of sodium pyrophosphate, 10 milliliters of phytic acid, and 5 milliliters of ascorbic acid, add 500 milliliters of deionized water, stir until dissolved; measure 15 milliliters at room temperature Add oxalic acid with a concentration of 28% to the above solution, weigh 5 grams of cobalt sulfate, 50 grams of ferrous sulfate, and 60 grams of nickel sulfate, and stir until dissolved at room temperature; then heat it to 65°C with a water bath, and weigh 60 grams of sodium tungstate , 15 grams of ammonium sulfate and added to the solution, stirred until dissolved; add 5 milliliters of brightener prepared with 1,2-propanediol, formaldehyde and dimethylhexynol, then add deionized water to make the solution to 1000 milliliters , use sodium hydroxide solution to adjust the pH value to 8; the temperature of the plating solution is heated to 75°C, the stainless steel is used as the anode...

Embodiment 3

[0026] Prepare the complexation-stabilizing solution first: weigh 24 grams of sodium citrate, 12 grams of sodium pyrophosphate, 10 milliliters of phytic acid, and 5 milliliters of ascorbic acid, add 500 milliliters of deionized water, stir until dissolved; measure 10 milliliters at room temperature Add oxalic acid with a concentration of 28% to the above solution, weigh 3 grams of cobalt sulfate, 30 grams of ferrous sulfate, and 40 grams of nickel sulfate, and stir until dissolved at room temperature; then heat it to 65°C with a water bath, and weigh 40 grams of sodium tungstate , 10 grams of ammonium sulfate and added to the solution, stirred until dissolved; add 3.5 milliliters of brightener prepared with 1,2-propanediol, formaldehyde and dimethylhexynol, then add deionized water to make the solution to 1000 milliliters , use sodium hydroxide solution to adjust the pH value to 7; the temperature of the plating solution is heated to 70°C, the stainless steel is used as the ano...

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Abstract

The invention discloses cobalt-tungsten-iron-nickel alloy electroplating liquid and belongs to the field of material surface treatment. A formula of the electroplating liquid comprises: 1 to 5 grams / litre of cobalt sulfate, 20 to 60 grams / litre of sodium tungstate, 10 to 50 grams / litre of ferrous sulfate, 20 to 60 grams / litre of nickel sulfate, 10 milliliters / litre of 28 percent oxalic acid, 5 to15 grams / litre of ammonia sulfate, 20 to 40 grams / litre of a complexing agent, 1 to 8 grams / litre of a stabilizing agent, 2 to 5 milliliters / litre of a brightness additive and 1,000 milliliters of deionized water. The surface of an electroplating layer obtained by using the cobalt-tungsten-iron-nickel alloy electroplating liquid has no microcrack and has good corrosion and friction resistance; each chemical reagent of the electroplating liquid has small harm to the environment; the process is stable; the electroplating liquid has simple components, is convenient to operate and can be stored for a long time after being prepared; and in addition, the electroplating liquid emits no acid mist in the working process and has high current efficiency.

Description

technical field [0001] The invention relates to an alloy electroplating solution in the field of material surface treatment, in particular to a cobalt-tungsten-iron-nickel alloy electroplating solution. Background technique [0002] At present, partial wear and corrosion in the field of petroleum machinery are serious, and there is no satisfactory surface treatment technology that can be used for surface treatment of petroleum machinery, which can be anti-corrosion, wear-resistant and low-cost at the same time. With the continuous consumption of petroleum resources, mining The petroleum environment is getting worse and worse, and the requirements for corrosion resistance and friction resistance of petroleum equipment are getting higher and higher. Therefore, the study of anti-corrosion and wear-resistant technology of petroleum machinery has always been a topic of people's concentration. [0003] A possible solution is to electroplate tungsten alloys. Tungsten cannot be ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/56
Inventor 乔瀚文赵汝山王晓强
Owner 乔瀚文
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