A treatment method for surface brightening of copper-nickel alloy pipe material

A treatment method, copper-nickel alloy technology, applied in the field of metal surface treatment, to achieve the effect of improving surface quality, reducing energy consumption, and reducing environmental pollution

Inactive Publication Date: 2017-07-25
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with chemical polishing, electrochemical polishing can achieve higher surface finish, but in electrochemical polishing, too high or too low voltage will have adverse effects, sometimes even without any polishing phenomenon
[0004] There is no relevant report on the treatment method of improving the surface brightness of B10 by chemical polishing

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The invention relates to a treatment method for brightening the surface of a copper-nickel alloy pipe material. The grade of the copper-nickel alloy pipe material is BFe10-1-1 and is abbreviated as B10.

[0025] The processing method of the present invention undergoes eight processes of grinding → degreasing → rinsing with clean water at normal temperature after degreasing → pre-pickling → rinsing with clean water at normal temperature after pickling → chemical polishing → cleaning → dehydration. In order to further illustrate the present invention, the present invention is described in detail as follows:

[0026] In the grinding process, use fine sandpaper to polish the surface of B10 to remove impurities on the surface of B10. The blending ratio of the degreasing solution used in the degreasing process is not strictly regulated. The degreasing solution is based on strong alkali and weak acidity, and can also be implemented by referring to the relevant degreasing proce...

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

A treatment method for brightening surfaces of copper nickel alloy tubes is provided. The method comprises following eight steps in order: polishing, removing oil, washing with clear water at room temperature after oil removing, pre-pickling, washing with clear water at room temperature after pickling, performing chemical polishing, cleaning and dehydrating. The step of performing chemical polishing includes following three subsidiary steps: preparing a polishing solution, ageing and polishing. The polishing solution comprises 350-430 mL / L of H2O2, 30-50 mL / L of concentrated H2SO4, 10 mL / L of concentrated H3PO4, 17-20 mL / L of C2H2OH, 1-1.5 mL / L of OP-10, and 1 g / L of BTA, with the balance being H2O. The polishing solution is simple in preparation, low in toxicity and harm, high in production efficiency and low in cost. The surfaces of polished copper nickel alloy tubes are bright, beautiful and flat. The method saves treatment time, increases the production efficiency, reduces energy consumption, and improves surface quality of the copper nickel alloy tubes to a certain degree.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a treatment method for brightening the surface of a copper-nickel alloy pipe material. Background technique [0002] The grade of the copper-nickel alloy pipe is BFe10-1-1 and is referred to as B10 for short. B10 has excellent electrical conductivity and strong corrosion resistance and is widely used in finished products, mechanical parts and tool products. However, if B10 products are exposed to the atmosphere and humid environment for a long time, they will often be corroded and lose their luster, which will affect their use value. In order to prevent tarnishing, B10 needs to be surface treated, polished and passivated. [0003] Mechanical polishing refers to the use of mechanical polishing to polish the metal surface. Chemical polishing and electrochemical polishing are finishing treatments, which can be used after mechanical polishing or directly....

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
Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/06
Inventor 马艳霞韩茂盛
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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