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Alloy porous material and preparation method thereof

A technology of porous materials and alloys, which is applied in the field of metal powder injection molding, can solve the problems that the efficiency and performance requirements of the production process of porous materials cannot meet the market demand, and achieve competitive advantages, saving manpower and material resources and costs, fast and convenient Forming effect

Pending Publication Date: 2021-09-03
宁波市富瑞鸿金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current market development trend of porous material products is developing in the direction of high-performance materials, high-complexity structuring, and diversification of alloy materials. Traditional porous material production processes have been unable to meet market demand in terms of efficiency and performance requirements in some new application fields. It needs to be expanded and combined with other new production processes to meet the needs of the porous material market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing an alloy porous material, comprising the steps of:

[0032] (1) Feeding and mixing:

[0033] The feed includes an alloy powder and a binder combination; in terms of mass percentage, the alloy powder accounts for 90% of the feed mass, and the binder combination accounts for 10% of the feed mass;

[0034] The particle size of the powder is 40 microns with a total content of 1.8wt%, 100 microns with 14wt%, and 316L powder with a total content of 40-100 microns in 84.2wt%, and the tap density is 4.63g / cm 3 , bulk density 4.08g / cm 3 , 316L alloy powder atomized by water and air with an oxygen content of 520ppm; the element content of the alloy powder is: oxygen content-0.29%, chromium content-18%, manganese content-0.79%, carbon content-0.023%, sulfur content- 0.004%, phosphorus content-0.018%, silicon content-0.62%, nickel content-11%, molybdenum content-2.2%, balance-iron;

[0035] The injection-feeding binder system used adopts a catalytic system...

Embodiment 2

[0046] A method for preparing an alloy porous material, comprising the steps of:

[0047] (1) Feeding and mixing:

[0048] The feed includes an alloy powder and a binder combination; in terms of mass percentage, the alloy powder accounts for 90% of the feed mass, and the binder combination accounts for 10% of the feed mass;

[0049] The powder particle size is 40 microns with a total content of 1.8wt%, 100 microns with 14wt%, and 316L powder with 84.2wt% 40-100 microns, and the tap density is 4.58g / cm 3 , bulk density 4.08g / cm 3 , 316L alloy powder atomized by water and air with an oxygen content of 520ppm; the element content of the alloy powder is: oxygen content-0.29%, chromium content-18%, manganese content-0.79%, carbon content-0.023%, sulfur content- 0.004%, phosphorus content-0.018%, silicon content-0.62%, nickel content-11%, molybdenum content-2.2%, balance-iron;

[0050] The used injection feeding binder system adopts a catalytic system, and the binder combination ...

Embodiment 3

[0061] A method for preparing an alloy porous material, comprising the steps of:

[0062] (1) Feeding and mixing:

[0063] The feed includes an alloy powder and a binder combination; in terms of mass percentage, the alloy powder accounts for 90% of the feed mass, and the binder combination accounts for 10% of the feed mass;

[0064] The powder particle size is 40 microns with a total content of 1.8wt%, 100 microns with 14wt%, and 316L powder with 84.2wt% 40-100 microns, and the tap density is 4.59g / cm 3 , bulk density 4.08g / cm 3 , 316L alloy powder atomized by water and air with an oxygen content of 520ppm; the element content of the alloy powder is: oxygen content-0.29%, chromium content-18%, manganese content-0.79%, carbon content-0.023%, sulfur content- 0.004%, phosphorus content-0.018%, silicon content-0.62%, nickel content-11%, molybdenum content-2.2%, balance-iron;

[0065] The injection-feeding binder system used adopts a catalytic system, and the binder combination ...

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Abstract

The invention discloses an alloy porous material and a preparation method thereof. The preparation method comprises the following steps of: (1) feeding and mixing; (2) injection molding of a product; (3) catalytic degreasing; (4) vacuum degreasing and sintering; and (5) surface passivation treatment. The advantages of an injection molding process can be fully exerted in the aspect of structural molding, and particularly in the aspect of special-shaped difficult structures such as a high complex structure and an ultrathin wall structure, the alloy porous material can be perfectly molded, and compared with manufacturing processes in other industries, the alloy porous material has more competitive advantages.

Description

technical field [0001] The invention relates to the technical field of metal powder injection molding, in particular to an alloy porous material and a preparation method thereof. Background technique [0002] Porous material product is a kind of alloy material product with porosity, low specific gravity, large specific surface and excellent permeability. It is mainly used in the fields of filtration, energy absorption, noise reduction and conduction. Casting, 3D printing, etc. [0003] The current market development trend of porous material products is developing in the direction of high-performance materials, high-complexity structuring, and diversification of alloy materials. Traditional porous material production processes have been unable to meet market demand in terms of efficiency and performance requirements in some new application fields. It needs to be expanded and combined with other new production processes to meet the needs of the porous material market. Conte...

Claims

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Application Information

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IPC IPC(8): C22C1/08B22F3/22B22F3/11B22F3/24C22C38/02C22C38/04C22C38/44
CPCC22C1/08B22F3/225B22F3/1025B22F3/1007B22F3/24B22F3/11B22F3/227C22C38/04C22C38/02C22C38/44
Inventor 姜洪亮苏来军王茂堂
Owner 宁波市富瑞鸿金属材料有限公司
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