Electrolytic polishing liquid, polishing device and polishing method

The technology of electrolytic polishing and polishing device is applied in the field of electrolytic polishing technology, which can solve the problems of operator safety threat, difficult treatment of waste water, eutrophication of water body, etc., and achieves the effect of good polishing effect and improved reaction and electrolysis speed.

Pending Publication Date: 2019-05-21
CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are two deficiencies in the following two aspects: 1. The electrolyte used contains phosphoric acid of traditional formula, which is not environmentally friendly, and the waste water produced is difficult to treat. Direct discharge will eas

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
  • Electrolytic polishing liquid, polishing device and polishing method
  • Electrolytic polishing liquid, polishing device and polishing method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] (Example 1)

[0037] The electrolytic polishing solution of this embodiment, calculated in parts by weight, includes sulfuric acid 18-28wt%, citric acid 20-32wt%, tartaric acid 5-15wt%, surfactant 1-5wt%, and the balance is deionized water. The concentration of sulfuric acid is 98%. The surfactant is an anionic surfactant. The concentrations of citric acid, tartaric acid and surfactants are all analytically pure. The surfactant is one or more of sodium stearate, sodium dodecylbenzene sulfonate, and sodium dodecyl sulfate.

[0038] see figure 1 with figure 2 , A polishing device of this embodiment includes a reaction vessel 1, an ultrasonic generator, an electrolyte storage tank 2 and a power source.

[0039] The electrolyte storage tank 2 contains the above-mentioned electrolytic polishing solution. A conductive plate 3 is provided in the reaction vessel 1. The top surfaces of the left and right side walls of the reaction vessel are evenly distributed with installation...

Example Embodiment

[0050] (Example 2)

[0051] The workpiece processed in this embodiment is a hardened hollow drill with a complicated inner surface structure, and the material grade is 420. The electrolyte composition of this embodiment: sulfuric acid 28 wt%, citric acid 30 wt%, tartaric acid 8 wt%, sodium dodecylbenzene sulfonate 3 wt%, sodium lauryl sulfate 1 wt%, and water 30 wt%. The electrolyte temperature is 55℃, the voltage is 7V, the current density is 50A / dm2, and the electrolysis time is 30S. The ultrasonic power is 1.2KW and the frequency is 25KHZ.

[0052] Electrolysis effect: small holes, the oxide scale on the inner surface of the cutting edge is cleaned, and the inner surface roughness is significantly reduced.

Example Embodiment

[0053] (Example 3)

[0054] The workpiece processed in this embodiment is a guide frame with threaded holes that has been quenched, and the material designation is 17-4. Electrolyte composition: sulfuric acid 25wt%, citric acid 30wt%, tartaric acid 10wt%, sodium stearate 3wt%, sodium lauryl sulfate 2wt%, water 30wt%. The electrolyte temperature is 50℃, the voltage is 8V, the current density is 30A / dm2, and the electrolysis time is 100S. The ultrasonic power is 1.2KW and the frequency is 28KHZ.

[0055] Electrolysis effect: burrs in threaded holes and oxide scale are removed cleanly.

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

No PUM Login to view more

Abstract

The invention discloses an electrolytic polishing liquid, a polishing device and a polishing method. The electrolytic polishing liquid comprises, by weight, 18%-28% of sulfuric acid, 20%-32% of citricacid, 5%-15% of tartaric acid, 1%-5% of a surface active agent and the balance deionized water; the concentration of the sulfuric acid is 98%; and the surface active agent is an anionic surfactant. The method for adopting electrolytic polishing to remove oxide skin inside a heat treatment part small hole and burrs in a threaded hole is adopted, and the technical problem that the inner surface ofthe martensitic stainless steel small hole is difficult to polish is solved.

Description

technical field [0001] The invention relates to an electrolytic polishing process, in particular to an electrolytic polishing liquid, a polishing device and a polishing method. Background technique [0002] As we all know, after heat treatment, the surface hardness, strength and wear resistance of martensitic stainless steel are significantly enhanced, and the price is relatively cheap, so it is often used as one of the main raw materials for medical devices. On the other hand, in order to meet the convenience of clinicians, medical devices are always designed as parts with hole structure, some are blind holes, some are elongated holes, some are threaded holes and so on. As a basic requirement for medical devices, the inner surface of parts must be smooth, free from impurities such as burrs, sharp edges, and scale produced by heat treatment. Therefore, the inner surface of the small hole of this medical device must be polished to meet the quality requirements. For the inne...

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): C25F3/24C25F7/00
Inventor 胡晓文刘忙仔杨俊峰赵洪军刘美红
Owner CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap