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

High-speed tool steel for sintering procedure of metal injection molding

A high-speed tool steel and injection molding technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of poor mechanical properties, reduced mechanical properties of materials, and limited improvement effects, etc., to improve mechanical properties and increase mechanical properties , increase the effect of bridging

Inactive Publication Date: 2017-05-24
深圳市卡德姆科技有限公司
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although low-temperature sintering can reduce product deformation, grain coarsening, and the formation of grain boundary network carbides, the product has low density and poor mechanical properties and cannot exert material properties.
Although the density of high-temperature sintered products can be increased, if the sintering temperature is too high, the product will be accompanied by deformation, grain coarsening and the formation of grain boundary network carbides, which will also reduce the mechanical properties of such materials.
[0003] The current known improvement method is to use super solidus and liquidus sintering technology and use a sintering furnace with high temperature uniformity, but the improvement effect is still limited

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
  • High-speed tool steel for sintering procedure of metal injection molding
  • High-speed tool steel for sintering procedure of metal injection molding
  • High-speed tool steel for sintering procedure of metal injection molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The ratio of the weight percentage of the iron element in the master alloy phase metal powder to the weight of the iron element in the ultrafine metal iron powder or nano-metal iron powder in the high-speed tool steel is 81.34%, and the master alloy phase metal powder The ratio of the weight of the iron element in the body in the high-speed tool steel to the weight of the ultra-fine metal iron powder or nano-metal iron powder in the high-speed tool steel is 1:1. The weight percentages within tool steel are as follows:

[0032] Fe Cr Mo C W V mn Si 40.67 4.125 5 0.83 6.125 1.975 0.275 0.325

[0033] The generated high-speed tool steel is a complete SKH51 tool steel material phase, the sintering temperature can be reduced, the mechanical properties can be improved, and the shortcomings of traditional high-temperature sintering can be avoided.

Embodiment 2

[0035]The ratio of the weight percentage of the iron element in the master alloy phase metal powder to the weight of the iron element in the ultrafine metal iron powder or nano-metal iron powder in the high-speed tool steel is 81.34%, and the master alloy phase metal powder The ratio of the weight of the iron element in the body in the high-speed tool steel to the weight of the ultra-fine metal iron powder or nano-metal iron powder in the high-speed tool steel is 1:2, and the chemical components of the master alloy phase metal powder are in the The weight percentages in high speed tool steel are as follows:

[0036] Fe Cr Mo C W V mn Si 27.15 4.125 5 0.83 6.125 1.975 0.275 0.325

[0037] The high-speed tool steel produced by the iron element in the master alloy phase metal powder and ultra-fine metal iron powder or nano-metal iron powder is a complete SKH51 tool steel material phase, the sintering temperature can be reduced, the mechanical pr...

Embodiment 3

[0039] The ratio of the weight percentage of the iron element in the master alloy phase metal powder to the weight of the iron element in the ultrafine metal iron powder or nano-metal iron powder in the high-speed tool steel is 81.34%, and the master alloy phase metal powder The ratio of the weight of the iron element in the body in the high-speed tool steel to the weight of the ultra-fine metal iron powder or nano-metal iron powder in the high-speed tool steel is 1:3, and the chemical components of the master alloy phase metal powder are in the The weight percentages in high speed tool steel are as follows:

[0040] Fe Cr Mo C W V mn Si 20.34 4.125 5 0.83 6.125 1.975 0.275 0.325

[0041] The high-speed tool steel produced by the iron element in the master alloy phase metal powder and ultra-fine metal iron powder or nano-metal iron powder is a complete SKH51 tool steel material phase, the sintering temperature can be reduced, the mechanical p...

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 high-speed tool steel for the sintering procedure of metal injection molding. The high-speed tool steel comprises a first powder body and a second powder body. The first powder body is the mother alloy phase metal powder body, and the second powder body is the ultrafine metal powder body or the nanometer metal powder body. According to the high-speed tool steel for the sintering procedure of metal injection molding, by adding the ultrafine metal powder body or the nanometer metal powder body of the proper proportion, the sintering temperature of the high-speed tool steel material is lowered, the problem of the narrow sintering window of the high-speed tool steel is solved, the product density is increased, and mechanical performance is improved; and the irregular metal powder bodies of the proper proportions play a bridging role among the components, so that deformation in the sintering process is avoided.

Description

technical field [0001] The invention relates to the technical field of high-speed tool steel, more specifically, the invention relates to a high-speed tool steel for metal injection molding sintering process. Background technique [0002] Because of its high hardness, tool steel is widely used in molds, fixtures, knives and metal materials that require high-speed cutting, such as: SKH51(M2), SKH10(T15), SKD61(H13), SKD11(D2)...etc. The traditional manufacturing method is to make ingots by smelting first, and then plastic processing such as forging and extrusion to make finished products. However, due to the smelting process, carbide segregation and grain coarsening are easy to occur. Or impurities or intermediate phases often have directionality, so their mechanical properties are not ideal. Another process is that the product obtained by traditional powder metallurgy dry pressing sintering or metal injection molding process has no melting process, so the product will not p...

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): C22C38/22C22C38/24C22C38/04C22C38/02C22C38/30B22F1/00
CPCC22C38/02C22C38/04C22C38/22C22C38/24C22C38/30B22F1/052
Inventor 侯春树张松曾虹高建芳
Owner 深圳市卡德姆科技有限公司
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