Polishing process for stainless steel base tape for coated conductor

A stainless steel and process technology, applied in the field of electrolytic polishing, can solve the problems of long time consumption, corrosion of equipment, change of proportion, etc., and achieve the effect of long service life, smooth surface and simple configuration

Inactive Publication Date: 2012-10-03
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In comparison, the cost of mechanical polishing is high, and the auxiliary materials and power consumption required are relatively expensive, and it has gradually become an auxiliary means in surface polishing.
Although the cost of chemical polishing is lower, the polishing rate is lower than that of electrochemical polishing, and it takes a long time. The surface finish after polishing is not as good as electrochemical polishing, so it is usually used in combination with electrochemical polishing.
[0005] The solution formula of the traditional stainless steel polishing process often contains harmful substances such as chromic acid and hydrofluoric acid, and the long time of high-temperature pickling increases the production cost
In addition, most of the traditional pickling solutions contain hydrochloric acid solution, and the hydrochloric acid solution is very volatile to form acid mist, which will not only pollute the environment, corrode equipment, but also change the initial solution ratio and affect the polishing quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Cut the Cr18Ni9 stainless steel material with a thickness of 280 μm into 10mm×30mm size, and immerse it in the pickling solution prepared by phosphoric acid, sulfuric acid and dimethylglyoxime. The amount of phosphoric acid added is 300mL / L, and the amount of sulfuric acid added is 200mL / L, the addition amount of dimethylglyoxime is 10g / L, the pickling temperature is room temperature, and the pickling time is 8min. The acid-washed samples were ultrasonically cleaned with acetone or alcohol for 5 minutes, then washed with water and dried. Immerse the pickled stainless steel material into the chemical polishing solution, the composition of the chemical polishing solution is mainly composed of phosphoric acid, sulfuric acid, hydrogen peroxide, and ZP-1 corrosion inhibitor. The addition amount of phosphoric acid is 280mL / L, the addition amount of sulfuric acid is 200mL / L, the addition amount of hydrogen peroxide is 80mL / L, the addition amount of ZP-1 corrosion inhibitor is...

example 2

[0024] Cut the 304 stainless steel material with a thickness of 320μm into 10mm×30mm size, and immerse it in the pickling solution prepared by phosphoric acid, sulfuric acid and dimethylglyoxime. The amount of phosphoric acid added is 320mL / L, and the amount of sulfuric acid added is 220mL / L, the addition amount of dimethylglyoxime is 12g / L, the pickling temperature is room temperature, and the pickling time is 6min. The acid-washed samples were ultrasonically cleaned with acetone or alcohol for 5 minutes, then washed with water and dried. Immerse the pickled stainless steel material into the chemical polishing solution, the composition of the chemical polishing solution is mainly composed of phosphoric acid, sulfuric acid, hydrogen peroxide, and ZP-1 corrosion inhibitor. The addition amount of phosphoric acid is 260mL / L, the addition amount of sulfuric acid is 200mL / L, the addition amount of hydrogen peroxide is 60mL / L, the addition amount of ZP-1 corrosion inhibitor is 15mL...

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Abstract

The invention relates to a polishing process for a stainless steel base tape for a coated conductor, which belongs to the technical field of surface polishing for base tapes of high-temperature coated superconductors and mainly provides a stainless steel polishing process integrating acid cleaning, chemical polishing and electrochemical polishing. According to the invention, toxic chromic acid and hydroflouric acid and volatile hydrochloric acid solution in the traditional polishing solution are removed, pollution to environmental, harm to human body and corrosion to equipment of the used materials are reduced, the raw materials of the polishing solution, including common phosphoric acid and sulfuric acid solutions, hydrogen peroxide used as an oxidant, dimethylglyoxime used as a complexing agent and ZP-1 corrosion inhibitor, are easily obtained, the cost is low, the operability of the preparation process is strong, the prepared solution can be used at normal temperature, the energy consumption of equipment is reduced, the electricity is saved, the production cost is saved by the optimized polishing process, and the polishing finish is enhanced.

Description

technical field [0001] The invention relates to a composition and a polishing process of a polishing liquid for a stainless steel base band for a coated conductor, relates to a research on the surface modification of an alloy base band for a high-temperature superconducting coated conductor, and belongs to the technical field of electrolytic polishing. Background technique [0002] Based on the inherent superior physical properties of high-temperature superconductors, high-temperature superconductors have potential application prospects in many aspects such as electricity, transportation, transportation, magnet technology, and military affairs, and there is also a huge commercial market. However, the application of superconducting materials is based on the preparation of high-performance, long-wire strips (on the order of kilometers), which is also a huge problem in the practical application of superconducting material wires and strips. The second-generation high-temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/24C23F3/04
Inventor 索红莉王营霞马麟王金华李孟晓孟易辰
Owner BEIJING UNIV OF TECH
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