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

A kind of cermet nanocomposite structure feeding material for thermal spraying and its preparation method

A cermet and nano-composite technology, applied in metal processing equipment, metal material coating technology, coating and other directions, can solve the problems of large specific surface area of ​​nano powder, easy adsorption on the wall of the powder feeding tube, and difficulty in feeding powder. The effect of improving mechanical properties and wear and corrosion resistance, improving comprehensive performance and use value, and improving high temperature oxidation resistance

Active Publication Date: 2020-08-18
GUANGDONG ZHENGDE MATERIAL SURFACE TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-powders cannot be directly used for thermal spraying, mainly because: 1) The particle size of nano-powders is too small, and it is easy to be burned during thermal spraying; 2) Nano-powders have large specific surface area, high chemical activity, and are easy to adsorb on the powder feeding tube wall, causing difficulty in feeding powder or even blocking the gun

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
  • A kind of cermet nanocomposite structure feeding material for thermal spraying and its preparation method
  • A kind of cermet nanocomposite structure feeding material for thermal spraying and its preparation method
  • A kind of cermet nanocomposite structure feeding material for thermal spraying and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a kind of cermet nano-composite structure feeding material TiB for thermal spraying 2 -NiCrCoAlY, the cermet nanocomposite structure feedstock is made of TiB 2 It is prepared with NiCrCoAlY and NiCrCoAlY according to the mass ratio of 2:3, combined with ball milling and spray drying technology.

[0046] A method for preparing a metal-ceramic nanocomposite structure feeding material, comprising the following steps:

[0047] (1) 40wt.%TiB 2 Powder and 60wt.% NiCrCoAlY powder are added to the 1-s type wet vertical stirring mill at the same time, and then add absolute ethanol with a volume of 2 / 3 of the grinding tank as a process control agent, and the grinding medium is 3mm zirconia balls, the total mass was 12kg, wet milled for 4 hours with a rotating speed of 350RPM in an argon protective atmosphere to obtain the slurry of composite powder A;

[0048] (2) Add TiB and TiB to the slurry of composite powder A 2 The mass ratio of NiCrCoAlY powder...

Embodiment 2

[0054] This embodiment provides a kind of cermet nano-composite structure feeding material TiB for thermal spraying 2 -NiCrCoAlY, the cermet nanocomposite structure feedstock is made of TiB 2 It is prepared with NiCrCoAlY and NiCrCoAlY according to the mass ratio of 2:3, combined with ball milling and spray drying technology.

[0055] A method for preparing a metal-ceramic nanocomposite structure feeding material, comprising the following steps:

[0056] (1) 40wt.%TiB 2 Powder and 60wt.% NiCrCoAlY powder are added to the 1-s type wet vertical stirring mill at the same time, and then add absolute ethanol with a volume of 2 / 3 of the grinding tank as a process control agent, and the grinding medium is 3mm zirconia balls, the total mass was 12kg, wet milled for 2 hours with a rotating speed of 400RPM in an argon protective atmosphere to obtain the slurry of composite powder A;

[0057] (2) Add TiB and TiB to the slurry of composite powder A 2 The mass ratio of NiCrCoAlY powder...

Embodiment 3

[0064] This embodiment provides a kind of cermet nano-composite structure feeding material TiB for thermal spraying 2 -NiCrCoAlY, the cermet nanocomposite structure feedstock is made of TiB 2 It is prepared with NiCrCoAlY and NiCrCoAlY according to the mass ratio of 2:3, combined with ball milling and spray drying technology.

[0065] A method for preparing a metal-ceramic nanocomposite structure feeding material, comprising the following steps:

[0066] (1) 40wt.%TiB 2Powder and 60wt.% NiCrCoAlY powder are added to the 1-s type wet vertical stirring mill at the same time, and then add absolute ethanol with a volume of 2 / 3 of the grinding tank as a process control agent, and the grinding medium is 3mm zirconia balls, the total mass was 12kg, wet milled for 4 hours with a rotating speed of 350RPM in an argon protective atmosphere to obtain the slurry of composite powder A;

[0067] (2) Add TiB and TiB to the slurry of composite powder A 2 The mass ratio with NiCrCoAlY powde...

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
melting pointaaaaaaaaaa
microhardnessaaaaaaaaaa
anti-oxidation temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a cermet nanocomposite structure feeding material for thermal spraying, comprising the following steps: (1) adding TiB 2 powder and NiCrCoAlY powder into the ball mill, then add process control agent and grinding media, and wet mill for 2 to 5 hours in a protective atmosphere to obtain the slurry of composite powder A; (2) add viscose to the slurry of composite powder A (3) The slurry of composite powder B is sprayed and granulated in a spray drying system to obtain nanoparticle composite powder, which is passed through sieving Obtaining a nanoparticle composite powder C of 15-45um; (4) keeping the nano-structure composite powder C in a vacuum furnace at a temperature of 80-100° C. for 2-5 hours to obtain a product. The powder prepared by the method of the invention has good fluidity and excellent performance, can meet the requirements of thermal spraying equipment on powder fluidity, solves the difficulty of spraying nano-cermet powder, and promotes the improvement of coating surface properties.

Description

technical field [0001] The patent of the invention belongs to the field of nanocomposite materials, and specifically relates to a cermet nanocomposite structure feeding material for thermal spraying and its preparation method Background technique [0002] Titanium diboride (TiB 2 ) is a ceramic material with special physical and chemical properties. Its melting point is as high as 2980°C, and its microhardness can reach 34GPa. TiB 2 The anti-oxidation temperature in air can reach 1000°C. In addition, TiB 2 It also has good chemical stability, electrical and thermal conductivity, etc., making it the best reinforcement candidate material in metal matrix ceramic composites, and is expected to replace WC and Cr in many industrial fields. 3 C 2 And other wear-resistant materials, has a wide range of application prospects. Existing research results show that M-TiB 2 Coatings such as Fe(Cr)-TiB 2 Coatings, etc. have more coarse-grained Cr than conventional 3 C 2 -NiCr and ...

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): B22F1/00B22F9/04C23C4/06
CPCC23C4/06B22F9/04B22F2009/043B22F1/10
Inventor 曾德长邹永鸣吴姚莎邱兆国邱金勇
Owner GUANGDONG ZHENGDE MATERIAL SURFACE 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