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

Method for quickly processing surface oxidation layer of rolled-state molybdenum product

A surface oxidation and product technology is applied in the field of rapid treatment of the surface oxide layer of rolled molybdenum products, which can solve the problems of difficult cleaning methods, complicated operations and high cleaning costs, and achieve the effects of rich metallic luster, smooth surface and convenient operation.

Active Publication Date: 2016-01-27
JINDUICHENG MOLYBDENUM CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for quickly treating the oxide layer on the surface of rolled molybdenum products, which solves the problems of difficult, complicated operation and high cleaning cost in existing cleaning methods

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 1

[0020] Step 1, first preparing a sodium hydroxide solution with a concentration of 100g / L, then mixing 50mL of the sodium hydroxide solution with 50mL of hydrogen peroxide with a density of 1.10g / mL to form a mixed cleaning solution;

[0021] Step 2, under normal temperature and pressure, put the molybdenum product into the mixed cleaning solution and soak for 20 minutes;

[0022] Step 3: Rinse the molybdenum product cleaned in step 2 with running water, and finally wipe the surface with a clean cotton cloth, and then air dry naturally.

[0023] The weight loss rate of the molybdenum product after cleaning in Example 1 was 0.4%.

Embodiment 2

[0025] Step 1, first preparing a sodium hydroxide solution with a concentration of 300g / L, then mixing 30mL of the sodium hydroxide solution with 210mL of hydrogen peroxide with a density of 1.10g / mL to form a mixed cleaning solution;

[0026] Step 2, under normal temperature and pressure, put the molybdenum product into the mixed cleaning solution and soak for 10 minutes;

[0027] Step 3: Rinse the molybdenum product cleaned in step 2 with running water, and finally wipe the surface with a clean cotton cloth, and then air dry naturally.

[0028] The weight loss rate of the molybdenum product after cleaning in Example 2 was 0.6%.

Embodiment 3

[0030] Step 1, first preparing a sodium hydroxide solution with a concentration of 500g / L, then mixing 50mL of the sodium hydroxide solution with 200mL of hydrogen peroxide with a density of 1.10g / mL to form a mixed cleaning solution;

[0031] Step 2, under normal temperature and pressure, put the molybdenum product into the mixed cleaning solution and soak for 5 minutes;

[0032] Step 3: Rinse the molybdenum product cleaned in step 2 with running water, and finally wipe the surface with a clean cotton cloth, and then air dry naturally.

[0033] The weight loss rate of the molybdenum product after cleaning in Example 3 was 0.5%.

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 a method for quickly processing a surface oxidation layer of a rolled-state molybdenum product. The method comprises the following steps: at normal temperature and pressure, putting the molybdenum product in a mixed cleaning solution for soak cleaning, then rushing the molybdenum product with flowing water, and finally carrying out drying processing. At normal temperature and pressure, the method adopts a mixture of sodium hydroxide and hydrogen peroxide to clean the molybdenum product. Thus, the method has the advantages of being convenient to operate, quick, efficient and environmental-friendly, the surface of the processed molybdenum product is smooth, has no pit and is rich of metallic luster, and the weight loss ration of the product after being cleaned is smaller than 1 percent.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of metal materials, and in particular relates to a method for quickly treating the oxide layer on the surface of rolled molybdenum products. Background technique [0002] There is a dense black oxide layer on the surface of molybdenum products after sintering, which seriously affects the quality of the product. The surface must be treated to a metallic luster to meet the requirements. The traditional cleaning method requires annealing and sintering, alkali cleaning, pickling, water washing, etc. At the same time, a large amount of acid-base reagents and dangerous chemical reagents are used, such as hydrofluoric acid, sulfuric acid, etc., the cleaning is difficult, the operation is complicated, and the cleaning cost is high. Contents of the invention [0003] The purpose of the present invention is to provide a method for quickly treating the oxide layer on the surface of rolled molybde...

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 Applications(China)
IPC IPC(8): C23G1/20
Inventor 谢明明
Owner JINDUICHENG MOLYBDENUM CO LTD
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