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Titanium-nickel alloy electrochemical polish liquid

A titanium-nickel alloy and electrochemical technology, applied in the field of electrochemical polishing liquid, can solve the problems of difficulty in machining titanium-nickel workpieces, poor machining performance, and unsatisfactory gloss, and achieve improved smoothness, surface quality, and hydrogen embrittlement. Dangerous little effect

Inactive Publication Date: 2006-04-05
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG +1
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

The machining performance of titanium-nickel alloy is poor, and it is difficult to process titanium-nickel workpieces by machining
At the same time, this method is also limited by the shape of the workpiece. For complex-shaped workpieces, wires, thin plates and small workpieces, it is difficult to achieve by machining, and a layer of cold hardened deformation layer will be formed on the surface of the workpiece after machining. , when grinding, some polishing abrasives will be mixed in the surface layer; and there is a danger of hydrogen embrittlement with chemical pickling, and the surface roughness, especially the glossiness, of the titanium-nickel alloy components after pickling is not ideal

Method used

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Embodiment Construction

[0022] With the titanium-nickel alloy to be treated as the anode, materials such as stainless steel and lead as the cathode, the electrochemical polishing solution provided by the present invention is used as the electrolyte, and under a certain applied voltage (12-40V), direct current is passed through the electrolytic cell, Oxidation reaction and reduction reaction occur at the cathode and anode respectively, so the anode metal is continuously dissolved to effectively remove the thick oxide layer, lubricant (such as graphite) layer and inclusions generated during the cold and hot processing of titanium-nickel alloy, and level the titanium-nickel alloy component surface and make it shiny.

[0023] Application example 1:

[0024] Polishing object: a sheet of titanium-nickel alloy with a diameter of 10mm

[0025] Taking titanium-nickel alloy as anode, lead as cathode, the electrochemical polishing liquid provided by the present invention is electrolyte (perchloric acid 15%, n-...

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Abstract

The invention relates to electrochemical polishing solution formula for Ti-Ni alloy, which has no water, and comprises a plurality of alcohols, perchloric acid and additive. It not only can remove thick oxide layer, lubricant (such as graphite) layer and inclusion benefit to obtain well polish surface, but also has high process efficiency, strong practice and long service time fit to all Ti-Ni alloys. This invention has wide application arrange.

Description

technical field [0001] The invention relates to an electrochemical polishing liquid for titanium-nickel alloy, which belongs to a chemical formula. Background technique [0002] At present, the traditional surface treatment methods used to remove the surface oxide layer, lubricant layer and oil stains formed during the cold and hot processing of titanium-nickel alloys, and to improve the surface roughness include mechanical processing, chemical pickling, etc. . The machinability of titanium-nickel alloy is poor, and it is difficult to process titanium-nickel workpieces by machining. At the same time, this method is also limited by the shape of the workpiece. For complex-shaped workpieces, wires, thin plates and small workpieces, it is difficult to achieve by machining, and a layer of cold hardened deformation layer will be formed on the surface of the workpiece after machining. When grinding, some polishing abrasives will be mixed on the surface; and there is a danger of h...

Claims

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Application Information

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IPC IPC(8): C25F3/26
Inventor 缪卫东米绪军栗华矗
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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