Electrochemical polishing electrolyte and polishing method for titanium and titanium alloy

An electrochemical and titanium alloy technology, applied in the field of electrochemical polishing electrolyte and polishing, can solve the problems of difficult large-scale application under low temperature conditions, easy corrosion on the surface of the sample, difficulty in obtaining polishing effect, etc. Good specular effect, avoid low temperature and relatively high voltage or high current effect
CN106567122AActive Publication Date: 2017-04-19DABO MEDICAL TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DABO MEDICAL TECH CO LTD
Publication Date
2017-04-19

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Abstract

The invention discloses an electrochemical polishing electrolyte and polishing method for titanium and a titanium alloy. The electrolyte comprises, by mass percentage, 10%-90% of corrodent, 1%-5% of an additive, 1%-5% of a polynitrogen compound and the balance water. The electrochemical polishing method comprises the following steps of pretreatment, surface oil removal and acid pickling treatment, electrolyte compounding, electrochemical polishing treatment and aftertreatment. The electrochemical polishing electrolyte is simple in formula, stable in performance, long in service life, low in price and capable of being used cyclically for multiple times; reaction conditions such as the low temperature or the relatively high voltage or the large current are not needed; and the electrochemical polishing electrolyte is more suitable for large-scale industrialized production. The surface reflectivity of a finished workpiece obtained through the electrochemical polishing method ranges from 70% to 95%, and surface roughness Ra is smaller than 0.05 micron.
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Description

technical field

[0001] The invention relates to an electrochemical polishing electrolyte and a polishing method thereof, in particular to an electrochemical polishing electrolyte of titanium and titanium alloys and a polishing method thereof. Background technique

[0002] Due to their good physical, chemical and biological properties, titanium and titanium alloys are more and more widely used in the fields of medical equipment, chemical machinery, aerospace and even daily necessities. Surface polishing can improve the decorative and Corrosion resistance, wear resistance, etc. are of great significance.

[0003] In order to achieve a smooth and bright titanium surface, the commonly used polishing methods include mechanical polishing and chemical polishing. However, these methods have some defects and deficiencies. For example, mechanical polishing requires multi-station mechanical polishing devices and power, and material friction loss Large, manual or automatic operation re...

Claims

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