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

Cleaning method of hard alloy basal bodies for ultrahard composite materials

A technology of cemented carbide matrix and composite materials, applied in the direction of metal material coating process, etc., can solve the problems of low activity, insufficient surface cleanliness, affecting the bonding strength of superhard materials and cemented carbide matrix, etc., to achieve cleanliness High, high cleanliness, high surface activity effect

Active Publication Date: 2019-12-10
ZHONGNAN DIAMOND CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cemented carbide substrate processed in the prior art is not clean enough and the activity is not strong, which affects the improvement of the bonding strength between the superhard material and the cemented carbide substrate.

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
  • Cleaning method of hard alloy basal bodies for ultrahard composite materials
  • Cleaning method of hard alloy basal bodies for ultrahard composite materials
  • Cleaning method of hard alloy basal bodies for ultrahard composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 YG12X cemented carbide substrate surface cleaning treatment

[0043] 1) Alkalinization treatment: immerse the cemented carbide substrate in a low-alkali solution and boil for 2 minutes, wash it with deionized water until it is neutral, then immerse it in a high-alkali solution for ultrasonic vibration cleaning for 15 minutes, then take out the cemented carbide substrate and wash it with ion Rinse with water to neutral;

[0044] In this embodiment, the weak base solution is formed by mixing deionized water and sodium hydroxide in a mass ratio of 1:0.1; the strong base solution is formed by KOH, K 3 Fe(CN) 6 and H 2 O is mixed with a mass ratio of 1:0.8:8, the sodium hydroxide, KOH and K 3 Fe(CN) 6 It is analytically pure grade; the cleaning power of the ultrasonic vibration is 40W;

[0045] 2) Acidizing treatment: immerse the cemented carbide substrate in dilute sulfuric acid solution for ultrasonic vibration cleaning for 2 minutes, wash with deionized...

Embodiment 2

[0059] Example 2 Surface cleaning treatment of YG12X cemented carbide substrate

[0060] 1) Alkalinization treatment: immerse the cemented carbide substrate in a low-alkali solution and boil for 3.5 minutes, wash it with deionized water until it is neutral, then immerse it in a high-alkali solution for ultrasonic vibration cleaning for 15-20 minutes, and then wash the cemented carbide substrate Take out and rinse with ionized water until neutral;

[0061] In this embodiment, the low-alkali solution is formed by mixing deionized water and sodium hydroxide at a mass ratio of 1:0.15;

[0062] The high alkali solution is composed of KOH, K 3 Fe(CN) 6 and H 2 O is mixed with a mass ratio of 1:1:10;

[0063] The sodium hydroxide, KOH and K 3 Fe(CN) 6 For analytically pure grade; the cleaning power of the ultrasonic vibration is 50W;

[0064] 2) Acidification treatment: immerse the cemented carbide substrate in a dilute sulfuric acid solution for 3.5 min with ultrasonic vibra...

Embodiment 3

[0081] Example 3 Surface cleaning treatment of YG13X cemented carbide substrate

[0082] 1) Alkalinization treatment: immerse the cemented carbide substrate in a low-alkali solution and boil for 5 minutes, wash it with deionized water until it is neutral, then immerse it in a high-alkaline solution for ultrasonic vibration cleaning for 20 minutes, then take out the cemented carbide substrate and wash it with ion Rinse with water to neutral;

[0083] The low alkali solution is formed by mixing deionized water and sodium hydroxide in a mass ratio of 1:0.2; the high alkali solution is composed of KOH, K 3 Fe(CN) 6 and H 2 O is mixed with a mass ratio of 1:1.2:12, the sodium hydroxide, KOH and K 3 Fe(CN) 6 It is analytically pure grade; the cleaning power of the ultrasonic vibration is 60W;

[0084] 2) Acidification treatment: immerse the cemented carbide substrate in dilute sulfuric acid solution for 5 minutes, wash with deionized water until neutral, then immerse in dilute...

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 cleaning method of hard alloy basal bodies for ultrahard composite materials. The cleaning process comprises 1) alkalization, 2) acidizing, 3) activation, 4) high-vacuum purification and 5) ion bombardment purification. The method can effectively remove impurities absorbed on the surfaces of the hard alloy basal bodies, so that high cleanness is achieved, the surface activity of the hard alloy basal bodies and the reaction cavity of outward combination are improved, the bonding strength between the ultrahard materials and the hard alloy basal bodies is improved, and the fall and damage phenomenon of the ultrahard composite materials is prevented.

Description

technical field [0001] The invention belongs to the field of superhard materials and cemented carbide composite materials, and in particular relates to a method for cleaning a cemented carbide matrix used in superhard composite materials. Background technique [0002] Superhard composite materials are sintered by superhard materials and cemented carbide substrates under high temperature and high pressure conditions. Because it has the characteristics of high hardness and good wear resistance of superhard materials, it also has the impact resistance of cemented carbide. Strong and good weldability, it is an excellent composite material, which is widely used in machining tools, drilling teeth for petroleum / geological drilling, wire drawing dies, etc. [0003] In ultra-high pressure and high temperature sintering of super-hard composite materials, the sintering quality of super-hard composite materials will be directly affected by the surface cleanliness of the cemented carbide...

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): C23G1/14C23G1/02C23C22/73C23G5/00C22F1/02
CPCC23G1/14C23G1/02C23C22/73C23G5/00C22F1/02
Inventor 卢灿华张涛包玉合宋子衡
Owner ZHONGNAN DIAMOND 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