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Stainless steel electrolytic polishing solution and electrolytic polishing method

An electrolytic polishing, stainless steel technology, applied in the electrolytic process, electrolytic components, etc., can solve problems such as unfavorable application, pollution, toxicity, etc., and achieve the effects of cost control, improved electrical conductivity, and reduced failure rate.

Inactive Publication Date: 2021-10-08
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional stainless steel electrolytic polishing liquid usually uses chromic anhydride, although it improves the polishing effect, it is polluting and toxic, which is not conducive to the application in industrial production, and the traditional electrolytic polishing liquid cannot achieve a roughness value less than 0.1 μm in a short time. Effect

Method used

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  • Stainless steel electrolytic polishing solution and electrolytic polishing method
  • Stainless steel electrolytic polishing solution and electrolytic polishing method
  • Stainless steel electrolytic polishing solution and electrolytic polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The raw materials used and their contents by weight are as follows: 35 parts of sulfuric acid, 57 parts of phosphoric acid, 2.5 parts of brightener gelatin, 5.5 parts of auxiliary brightener op emulsifier, and 2.5 parts of conductive agent ammonium sulfate.

[0035] The electrolytic polishing method is carried out according to the following steps:

[0036] (1) Stainless steel pretreatment: Ultrasonic cleaning with degreasing agent and deionized water for 30 seconds.

[0037] (2) Electropolishing: Put the pretreated stainless steel into the stainless steel electrolytic polishing solution for electropolishing; wherein the pretreated stainless steel is the anode, and the copper plate is the cathode;

[0038] (3) Cleaning and drying: Ultrasonic cleaning with deionized water followed by ultrasonic cleaning with ethanol solution for 30 seconds. Dry the liquid components on the surface with a hair dryer or an oven, and dry the residual liquid components on the surface.

[003...

Embodiment 2

[0044] The raw materials used and their contents by weight are as follows: 35 parts of sulfuric acid, 57 parts of phosphoric acid, 3 parts of brightener gelatin, 5.5 parts of auxiliary brightener op emulsifier, and 2.5 parts of conductive agent ammonium sulfate.

[0045] The electrolytic polishing method is carried out according to the following steps:

[0046] (1) Stainless steel pretreatment: Ultrasonic cleaning with degreasing agent and ultrasonic cleaning with deionized water for 30 seconds.

[0047] (2) Electropolishing: Put the pretreated stainless steel into the stainless steel electrolytic polishing solution for electropolishing; wherein the pretreated stainless steel is the anode, and the lead plate is the cathode;

[0048] (3) Cleaning and drying: Ultrasonic cleaning with deionized water followed by ultrasonic cleaning with ethanol solution for 30 seconds. Dry the liquid components on the surface with a hair dryer or an oven, and dry the residual liquid components on...

Embodiment 3

[0053] The raw materials used and their parts by weight are as follows: 35 parts of sulfuric acid, 57 parts of phosphoric acid, 4 parts of brightener glycerin, 5.5 parts of auxiliary brightener sodium lauryl sulfate, and 2.5 parts of conductive agent ammonium phosphate.

[0054] The electrolytic polishing method is carried out according to the following steps:

[0055] (1) Stainless steel pretreatment: Ultrasonic cleaning with degreasing agent and ultrasonic cleaning with deionized water for 30 seconds.

[0056](2) Electropolishing: Put the pretreated stainless steel into the stainless steel electrolytic polishing solution for electropolishing; wherein the pretreated stainless steel is the anode, and the copper plate is the cathode;

[0057] (3) Cleaning and drying: Ultrasonic cleaning with deionized water followed by ultrasonic cleaning with ethanol solution for 30 seconds. Dry the liquid components on the surface with a hair dryer or an oven, and dry the residual liquid comp...

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Abstract

The invention relates to a stainless steel electrolytic polishing solution and an electrolytic polishing method. The stainless steel electrolytic polishing solution comprises the following components in parts by weight: 20-50 parts of sulfuric acid, 50-80 parts of phosphoric acid, 2-6 parts of a brightener, 3-7 parts of an auxiliary brightener and 2-3 parts of a conductive agent. The stainless steel electrolytic polishing method comprises the steps that stainless steel is pretreated, the stainless steel is put into the stainless steel electrolytic polishing solution to be subjected to electrolytic polishing, the pretreated stainless steel serves as an anode, a copper plate or a lead plate serves as a cathode, meanwhile, a magnetic stirring device is started to achieve dispersion of the electrolyte, the electrolytic polishing time is 1-5 minutes, and cleaning and drying are conducted. Compared with the prior art, according to the technical scheme, the cost is controllable, the electrolytic polishing time is short, the method can be carried out under the medium-low temperature condition, compared with a traditional electrolytic polishing solution, the efficiency is greatly improved, the production difficulty is reduced, and the method is widely applied to the field of stainless steel electrolytic polishing.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a stainless steel electrolytic polishing solution and an electrolytic polishing method. Background technique [0002] Due to its excellent corrosion resistance, ductility, toughness and easy cleaning, stainless steel is widely used in six major fields such as automobile industry, water industry, home appliance industry, environmental protection industry, construction industry, and industrial facilities. Since 2008, the consumption of stainless steel products in my country has exceeded 1.26 million tons, and it continues to grow at a rate of 10% every year. With the large-scale increase in the demand for stainless steel products and the improvement of people's living standards and aesthetic standards, the requirements for the appearance and flatness of stainless steel are also getting higher and higher, not only requiring a longer service life but also requiring a bright...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/24C25F7/00
CPCC25F3/24C25F7/00
Inventor 宣宇娜唐佳斌蒋继波王振卫
Owner SHANGHAI INST OF TECH
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