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Iron base nonmagnetic hard alloy material and preparation method and application thereof

A cemented carbide, iron-based technology, applied in metal material coating process, superimposed layer plating, coating and other directions, can solve the problems of high price, reduced resource reserves, high mold production cost, and reduce specific gravity and density. Low, material saving effect

Active Publication Date: 2019-08-20
ZHUZHOU JINGGONG CEMENTED CARBIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current non-magnetic hard alloy materials are basically made of WC and Ni as the main raw materials, and W is used as a strategic reserve resource. On the one hand, with the continuous growth of recoverable quantities, resource consumption is accelerating, and resource reserves are gradually decreasing. On the other hand, In terms of W, the price is expensive, and the mold production cost is high

Method used

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  • Iron base nonmagnetic hard alloy material and preparation method and application thereof
  • Iron base nonmagnetic hard alloy material and preparation method and application thereof
  • Iron base nonmagnetic hard alloy material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An iron-based non-magnetic hard alloy material, by mass percentage, includes the following components:

[0036]

[0037] The preparation method of the above-mentioned iron-based non-magnetic hard alloy material comprises the following steps:

[0038] (1) After mixing the raw materials in proportion, carry out high-energy planetary ball milling, then spray drying and compression molding to obtain compacted bodies; during high-energy planetary ball milling, the mixture of alcohol and polyethylene glycol is used as the ball milling medium, and the mixture of alcohol and polyethylene glycol The volume ratio is 10:1, the ball-milling ratio is 7:1, and the ball-milling time is 12 hours; for spray drying, the drying time is 2 hours, the drying temperature is 70°C, and the medium gas is argon or nitrogen; the control pressure is 120T during compression molding;

[0039] (2) Remove the molding agent from the compact body obtained in step (1), and then vacuum sinter to obtain ...

Embodiment 2

[0053] An iron-based non-magnetic hard alloy material, by mass percentage, includes the following components:

[0054]

[0055]

[0056] The preparation method of the above-mentioned iron-based non-magnetic hard alloy material comprises the following steps:

[0057] (1) After mixing the raw materials in proportion, carry out high-energy planetary ball milling, then spray drying and compression molding to obtain compacted bodies; during high-energy planetary ball milling, the mixture of alcohol and polyethylene glycol is used as the ball milling medium, and the mixture of alcohol and polyethylene glycol The volume ratio is 6:1, the ball milling ratio is 8:1, and the ball milling time is 10h; when spray drying, the drying time is 0.5h, the drying temperature is 80°C, and the medium gas is argon or nitrogen; the control pressure is 100T during compression molding ;

[0058] (2) Remove the molding agent from the compact body obtained in step (1), and then vacuum sinter to o...

Embodiment 3

[0067] An iron-based non-magnetic hard alloy material, by mass percentage, includes the following components:

[0068]

[0069] The preparation method of the above-mentioned iron-based non-magnetic hard alloy material is the same as that in Example 2.

[0070] The SEM image of the iron-based non-magnetic cemented carbide prepared in this example is as follows image 3 shown.

[0071] After testing, the properties of the iron-based non-magnetic hard alloy material in this embodiment are as follows:

[0072] Density: 5.55g / cm 3 ;

[0073] Strength: 2460N / mm 2 ;

[0074] Hardness: 84.0HRA;

[0075] Porosity: A02B00C00E00;

[0076] Toughness: 17.2MPam 1 / 2 .

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Abstract

The invention discloses an iron base nonmagnetic hard alloy material. The iron base nonmagnetic hard alloy material comprises the following components in parts by weight: 80-95 parts of TiCN, 5-30 parts of Fe, 2-20 parts of Ni, 0.2-20 parts of Si, 0.2-20 parts of Al2O3, 0.2-20 parts of laB, 0.5-5 parts of Cr, and 0.5-5 parts of Mo. The invention correspondingly provides a preparation method and application of the iron base nonmagnetic hard alloy material. Hard alloys can use no W but Ti; and Ti is metal with rich storage and lower cost for replacing rare strategic reserve metal of W, so that the important economic and social significance is achieved, and meanwhile, the cost of the hard alloy material can be greatly reduced.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a non-magnetic hard alloy material and a preparation method and application thereof. Background technique [0002] As the teeth of industry, cemented carbide is widely used in various fields of the national economy such as cutting tools, mining tools and wear-resistant parts, and is a basic high-tech material for industry. Especially in the mold industry, the service life of cemented carbide molds can be extended by ten times or even dozens of times compared with steel. In the field of forming of some special materials, such as the compression molding of magnetic materials, non-magnetic hard alloys must be required to make corresponding molds. [0003] The current non-magnetic hard alloy materials are basically made of WC and Ni as the main raw materials, and W is used as a strategic reserve resource. On the one hand, with the continuous growth of recoverable quantitie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/04C23C28/00C25F1/04B22F3/10C22C1/05
CPCB22F3/1007B22F2999/00C22C1/051C22C29/005C22C29/04C23C28/00C25F1/04B22F2201/20
Inventor 陈明
Owner ZHUZHOU JINGGONG CEMENTED CARBIDE