Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electrochemical polishing solution for zinc alloy devices and polishing method thereof

A zinc alloy, electrochemical technology, applied in the formulation of electrochemical polishing liquid and its polishing, and in the field of polishing of medical zinc alloy equipment, it can solve the problems of unstable polishing liquid composition, dullness, loss of polishing effect, etc., and achieve improved polishing Quality, reduction of replacement cycle effect

Active Publication Date: 2016-04-20
XIAN ADVANCED MEDICAL TECH
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent No. 1891777A uses phosphoric acid, sulfuric acid, organic acid, and polyols to chemically polish aluminum alloys, but when using this formula to electrochemically polish zinc alloys, the addition of sulfuric acid will cause the complete dissolution of the passivation film, As a result, the polishing effect is lost, and the surface of the polished zinc alloy is black and dull, and the addition of polyols makes the viscosity of the polishing liquid too high, and the gas and ions have no time to diffuse, so this polishing liquid cannot be used for polishing zinc alloys.
[0005] People such as Li Yi published a zinc alloy electrochemical polishing solution of phosphoethanol in "Metal Surface Polishing Technology" published in 2006. The polishing quality is better, but the ethanol in it is too volatile, which causes the composition of the polishing solution to be unstable. , need to add ethanol frequently

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrochemical polishing solution for zinc alloy devices and polishing method thereof
  • Electrochemical polishing solution for zinc alloy devices and polishing method thereof
  • Electrochemical polishing solution for zinc alloy devices and polishing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment uses this electrochemical polishing electrolyte and surface polishing technology to polish the surface of the Zn99Mg1 (atomic ratio) vascular stent so that it presents a specular luster. The specific steps are as follows:

[0040] Step 1: Clean the Zn99Mg1 vascular stent with a diameter of 2mm in sequence with acetone, purified water and absolute ethanol for 10 minutes respectively;

[0041] Step 2: Measure 150ml phosphoric acid, 700ml ethylene glycol dibutyl ether, and 150ml acetic acid in a fume hood, add phosphoric acid and acetic acid to ethylene glycol dibutyl ether in turn, stir for 10 minutes and mix to form a solution;

[0042] Step 3: Use the vascular stent as the anode and the lead plate as the cathode, and immerse it in the electrochemical polishing solution obtained in step 2. Turn on the power, take it out after electrolysis for 200s;

[0043] Step 4: After taking out the stent, immediately wash the surface with a large amount of flowing pu...

Embodiment 2

[0046] This embodiment uses this electrochemical polishing electrolyte and surface polishing technology to polish the surface of the Zn99Mg1 (atomic ratio) vascular stent so that it presents a specular luster. The specific steps are as follows:

[0047] Step 1: Clean the vascular stent with a diameter of 2mm in sequence with acetone, purified water and absolute ethanol for 10 minutes respectively;

[0048] Step 2: Measure 250ml of phosphoric acid, 500ml of ethylene glycol dibutyl ether, and 250ml of acetic acid in a fume hood, add phosphoric acid and acetic acid to ethylene glycol dibutyl ether in turn, stir for 10 minutes and mix to form a solution;

[0049] Step 3: The vascular stent is used as the anode, and the lead plate is used as the cathode, immersed in the electrochemical polishing solution obtained in step 2, the temperature is set to room temperature, and the distance between the cathode and anode is set to 15cm. Set the electrochemical polishing current to 0.5A, tu...

Embodiment 3

[0053] This embodiment uses this electrochemical polishing electrolyte and surface polishing technology to polish the surface of the Zn99Mg1 (atomic ratio) vascular stent so that it presents a specular luster. The specific steps are as follows:

[0054] Step 1: Clean the Zn99Mg1 vascular stent with a diameter of 2mm in sequence with acetone, purified water and absolute ethanol for 10 minutes respectively;

[0055] Step 2: Measure 350ml of phosphoric acid, 600ml of ethylene glycol dibutyl ether, and 50ml of acetic acid in a fume hood, add phosphoric acid and acetic acid to ethylene glycol dibutyl ether in turn, stir for 10 minutes and mix to form a solution;

[0056] Step 3: The vascular stent is used as the anode, and the lead plate is used as the cathode, immersed in the electrochemical polishing solution obtained in step 2, the temperature is room temperature, and the distance between the cathode and the anode is set to 15cm. Set the electrochemical polishing current to 0.5A...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an electrochemical polishing solution for zinc alloy devices and a polishing method thereof, particularly an electrochemical polishing solution for zinc alloy products and a polishing method thereof, belonging to the field of zinc alloy material surface treatment. The electrochemical polishing solution for zinc alloy devices is composed of the following substances in percentage by volume: 10-40% of phosphoric acid, 20-85% of ethylene glycol butyl ether and 5-50% of acetic acid. The polishing solution has the characteristics of low toxicity, high component stability and the like, and can be used for electrochemical polishing of zinc alloy products. The polished zinc alloy product has the advantages of high brightness and smooth surface. The electrochemical polishing solution is free of environmentally harmful components and biologically toxic components, can not introduce toxic substances onto the zinc alloy surface, and is especially suitable for electrochemical polishing of medical zinc alloy instruments. The electrochemical polishing solution has low component volatilization rate, and thus, is beneficial to shortening the polishing solution replacement period.

Description

technical field [0001] The invention belongs to the field of surface treatment of zinc alloy materials, and in particular relates to a formula of an electrochemical polishing liquid for zinc alloy products and a polishing method thereof. The formula and method are particularly suitable for polishing medical zinc alloy instruments, and also belong to the field of medical instrument production . Background technique [0002] Zinc alloy has good processing plasticity, corrosion resistance, good mechanical properties and wear resistance, and is widely used in national defense and electronic devices. In recent years, zinc alloys are considered to be degradable in vivo and have good biocompatibility, and are promising as a degradable metal material for implantation of medical devices. Whether it is used in general industries such as daily necessities, mechanical parts, or in the field of medical device manufacturing, in order to meet the application requirements, zinc alloy devic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25F3/22
CPCC25F3/22
Inventor 郭高阳王昂蒲向龙张勇严心浩宫海波屈功奇周功耀
Owner XIAN ADVANCED MEDICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com