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

A high toughness and high wear resistance wire for additive manufacturing of hot work molds and preparation method thereof

A high wear-resistance, hot-work mold technology, applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of complex process and long time-consuming, achieve simple process, reduce non-metallic inclusions, and dense matrix structure. Effect

Active Publication Date: 2022-02-22
CHINA-UKRAINE INST OF WELDING GUANGDONG ACAD OF SCI
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ultrasonic vibration dispersive mixing method combines the advantages of ultrasonic vibration and mechanical mixing, which can effectively improve the problem of powder agglomeration, but it also has the disadvantages of long preparation process and complicated process

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 high toughness and high wear resistance wire for additive manufacturing of hot work molds and preparation method thereof
  • A high toughness and high wear resistance wire for additive manufacturing of hot work molds and preparation method thereof
  • A high toughness and high wear resistance wire for additive manufacturing of hot work molds and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]A wire suitable for additive manufacturing of hot work molds, using H08A steel strip as the sheath, the size of the steel strip is 0.7×14mm, the powder filling rate is 28.0%, and the diameter of the wire is 1.2mm. The composition and mass percentage of the drug core powder are as follows: alloy powder: Cr: 4.0%, Mo: 1.5%, V: 0.5%, Nb: 4.0%; Co: 2.0%; combined deoxidizer: Zr: 0.5%, Si : 0.5%; Sc: 0.5%; Nano WC: 1.5%, the balance is iron powder. The particle size range of the alloy powder is 100-150 μm, the particle size range of the nanometer WC is 80-100 nm, and the purity is 99.9%.

[0025] The specific steps of the wire preparation method are as follows:

[0026] S1: First, add 500g of atomized iron powder with a particle size of 450-500μm into 10L of ethanol solution, stir for 30min, then add 50ml of 3-aminopropyltriethoxysilane, continue stirring for 1h, then vacuum filter Atomized iron powder with positive charge on the surface is obtained. Under the condition of...

Embodiment 2

[0030] A wire suitable for additive manufacturing of hot work molds, using H08A steel strip as the outer skin, the size of the steel strip is 0.7×14mm, the powder filling rate is 30.0%, and the diameter of the wire is 1.6mm. The composition and mass percentage of the drug core powder are as follows: alloy powder: Cr: 4.0%, Mo: 1.5%, V: 0.5%, Nb: 4.5%; Co: 3.0%; combined deoxidizer: Zr: 0.5%, Si : 0.5%; Sc: 0.5%; Nano WC: 3.0%, the balance is iron powder. The particle size range of the alloy powder is 100-150 μm, the particle size range of the nanometer WC is 80-100 nm, and the purity is 99.9%.

[0031] The specific steps of the wire preparation method are as follows:

[0032] S1: First, add 500g of atomized iron powder with a particle size of 450-500μm into 10L of ethanol solution, stir for 30min, then add 50ml of 3-aminopropyltriethoxysilane, continue stirring for 1h, then vacuum filter Atomized iron powder with positive charge on the surface is obtained. Under the conditi...

Embodiment 3

[0036] A wire suitable for additive manufacturing of hot work molds, using H08A steel strip as the outer skin, the size of the steel strip is 0.7×14mm, the powder filling rate is 30.0%, and the diameter of the wire is 1.6mm. The composition and mass percentage of the drug core powder are as follows: alloy powder: Cr: 4.0%, Mo: 1.5%, V: 0.5%, Nb: 5.0%; Co: 4.0%; combined deoxidizer: Zr: 0.5%, Si : 0.5%; Sc: 0.5%; Nano WC: 4.0%, the balance is iron powder. The particle size range of the alloy powder is 100-150 μm, the particle size range of the nanometer WC is 80-100 nm, and the purity is 99.9%.

[0037] The specific steps of the wire preparation method are as follows:

[0038] S1: First, add 500g of atomized iron powder with a particle size of 450-500μm into 10L of ethanol solution, stir for 30min, then add 50ml of 3-aminopropyltriethoxysilane, continue stirring for 1h, then vacuum filter Atomized iron powder with positive charge on the surface is obtained. Under the conditi...

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
diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-toughness and high-abrasion resistance wire material for additive manufacturing of hot work molds and a preparation method thereof. Add Co and Nb, add atomized iron powder uniformly loaded with nano-ceramic particles prepared by electrostatic self-assembly process, prepare nano-WC uniformly dispersed wire for hot work die steel additive manufacturing, and solve the problem of the difficulty in the preparation process of nano-ceramic particles The problem of agglomeration and growth, in the additive manufacturing process, the dispersed WC particles not only enhance the wear resistance of the hot work die steel matrix, but also improve the toughness of the hot work die steel matrix, especially, in the additive manufacturing process, It can also inhibit the formation of columnar crystals and induce the formation of equiaxed crystals, further enhancing the comprehensive performance of the additive manufacturing structure, so that the arc fuse additive manufacturing hot work die steel structure has both high toughness and high wear resistance .

Description

Technical field: [0001] The invention relates to a wire material for repairing a hot work mold, in particular to a high toughness and high wear resistance wire material for additive manufacturing of a hot work mold and a preparation method thereof. Background technique: [0002] With the rapid development of the advanced manufacturing technology industry, the service environment and performance requirements of the materials used are becoming more and more stringent. The performance of traditional metal materials can no longer meet the multiple functional requirements of the development of high-tech industries, making wear, corrosion, and fatigue often occur during service. There is an urgent need to develop special functional materials with multiple properties. For a long time, scholars at home and abroad have used various technologies to improve the comprehensive performance of the surface of traditional metal mold materials, such as nitriding, carburizing, vapor deposition...

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): B23K35/02B23K35/30B23K35/40
CPCB23K35/0266B23K35/308B23K35/40
Inventor 易江龙邹晓东张雪莹潘琳琳牛犇范振华
Owner CHINA-UKRAINE INST OF WELDING GUANGDONG ACAD OF SCI
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