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

A kind of preparation method of tic high manganese steel base steel-bonded hard alloy

A technology of steel-bonded hard alloy and high-manganese steel, which is applied in the field of preparation of TiC high-manganese steel-based steel-bonded hard alloy, can solve the problems of adverse effects on material structure and performance, unsuitability for large-scale production, and high preparation costs, and achieve Improve the performance, small size, uniform distribution effect

Inactive Publication Date: 2016-03-23
JIANGSU HUICHENG MACHINERY MFG
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But the in-situ synthesis method also has many deficiencies: the reinforcing particles are limited to the thermodynamically stable particles in a specific matrix; The shape is controlled by the kinetics of the nucleation and growth process, and after the in-situ particles are formed, they often segregate in the dendrite gap or grain boundary during the casting process, which has a negative impact on the structure and properties of the material, and the processability is poor. The cost is higher than the existing technology, not suitable for large-scale production

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

[0028] A preparation method of TiC high manganese steel-based steel-bonded hard alloy, which adopts the following technical scheme:

[0029](1) Raw materials:

[0030] The raw materials used are titanium powder, ferromolybdenum powder, ferrovanadium powder, ferromanganese powder, ferrosilicon powder, iron powder, nickel powder, colloidal graphite, CeO 2 , PVA, the powder particle size is below 10-50μm;

[0031] (2) Material preparation:

[0032] 1) Preparation of in-situ synthesized TiC mixed powder: Titanium (Ti) powder and graphite powder were prepared at a C / Ti atomic ratio of 0.85 to prepare in-situ synthesized TiC mixed powder;

[0033] 2) Preparation of binder phase matrix alloy powder: The chemical composition of the binder phase metal material is: C0.9%, Mo1.5%, V0.1%, Si0.4%, Mn10%, Ni1.5%, S ≤0.02, P≤0.02, CeO 2 ≤0.8%, balance Fe, and unavoidable impurity elements;

[0034] 3) Preparation of TiC high-manganese steel-based steel-bonded hard alloy material: the ma...

Embodiment 2

[0041] A preparation method of TiC high manganese steel-based steel-bonded hard alloy, which adopts the following technical scheme:

[0042] (1) Raw materials:

[0043] The raw materials used are titanium powder, ferromolybdenum powder, ferrovanadium powder, ferromanganese powder, ferrosilicon powder, iron powder, nickel powder, colloidal graphite, CeO 2 , Y 3 o 2 Two kinds, PVA, the powder particle size is below 10-50μm;

[0044] (2) Material preparation:

[0045] 1) Preparation of in-situ synthesized TiC mixed powder: Titanium (Ti) powder and graphite powder were prepared with a C / Ti atomic ratio of 0.9 to prepare in-situ synthesized TiC mixed powder;

[0046] 2) Preparation of binder phase matrix alloy powder: The chemical composition of the binder phase metal material is: C1.2%, Mo1.8%, V0.2%, Si0.5%, Mn12%, Ni1.8%, S ≤0.02, P≤0.02, CeO 2 0.5%, Y 3 o 2 0.3%, balance Fe, and unavoidable impurity elements;

[0047] 3) Preparation of TiC high-manganese steel-based st...

Embodiment 3

[0054] A preparation method of TiC high manganese steel-based steel-bonded hard alloy, which adopts the following technical scheme:

[0055] (1) Raw materials:

[0056] The raw materials used are titanium powder, ferromolybdenum powder, ferrovanadium powder, ferromanganese powder, ferrosilicon powder, iron powder, nickel powder, colloidal graphite, CeO 2 , Y 3 o 2 , La 2 o 3 , PVA, the powder particle size is below 10-50μm;

[0057] (2) Material preparation:

[0058] 1) Preparation of in-situ synthesized TiC mixed powder: Titanium (Ti) powder and graphite powder were prepared with a C / Ti atomic ratio of 1.0 to prepare in-situ synthesized TiC mixed powder;

[0059] 2) Preparation of matrix alloy powder for the bonding phase: the chemical composition of the bonding phase metal material is: C1.5%, Mo2.0%, V0.3%, Si0.6%, Mn13%, Ni2.0%, S ≤0.02, P≤0.02, CeO 2 0.3%, Y 3 o 2 0.3%, La 2 o 3 0.2%, balance Fe, and unavoidable impurity elements;

[0060] 3) Preparation of Ti...

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
particle sizeaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of TiC high-manganese steel-based steel-bonded hard alloy, which is characterized in that titanium powder and graphite powder are prepared according to the C / Ti atomic ratio of 0.8 to 1.0 to form in-situ synthesized TiC powder in a required ratio; Prepare ferromolybdenum powder, ferrovanadium powder, ferromanganese powder, ferrosilicon powder, iron powder, nickel powder, colloidal graphite and rare earth raw materials according to the required proportion of the chemical composition of the bonding phase metal, put them into a steel ball mill, and add Anhydrous ethanol is used as a medium and PVA, and after ball milling, the slurry is dried, pressed into shape, and sintered to obtain a steel-bonded alloy. The invention combines in-situ reaction synthesis technology and liquid phase sintering technology to prepare TiC / high manganese steel-based steel-bonded hard alloy. because TiC is synthesized in situ inside the matrix through the reaction in the sintering process, the reinforced particle size is small, the surface has no sharp corners, the matrix interface is well bonded and the interface is clean. The prepared steel-bonded alloy method can improve the comprehensive mechanical properties of the alloy, and has low price and simple process.

Description

technical field [0001] The invention relates to a preparation method of a TiC high manganese steel-based steel-bonded hard alloy, in particular to the technical field of preparing a TiC high-manganese steel-based steel-bonded hard alloy by a reaction sintering method. Background technique [0002] Steel-bonded cemented carbide (hereinafter referred to as steel-bonded alloy) is produced between cemented carbide and alloy tool steel, die steel and high-speed steel with steel as the matrix, tungsten carbide, titanium carbide, etc. Between high-life mold materials and engineering materials. The proportion range of steel bonded alloy steel matrix binder phase and hard phase is quite wide, which determines that it has the following excellent properties: 1) Wide range of process properties, mainly forgeability, machinability and heat treatability and solderability. 2) Good physical and mechanical properties, mainly in wear resistance equivalent to high cobalt cemented carbide; hi...

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): C22C33/02C22C38/14C22C29/02C22C1/05
Inventor 邵慧萍丁刚丁家伟印杰施孟达朱坚王红仁
Owner JIANGSU HUICHENG MACHINERY MFG
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