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Ternary boride composite cermet with ferro-nickel as raw material and preparing method and application thereof

A ternary boride, nickel-iron alloy technology, applied in the field of preparing ternary boride composite cermet, can solve the problems of low production efficiency, high cost, product shape and size restrictions, etc., achieve high production efficiency, low production cost, Good strength and toughness

Active Publication Date: 2020-05-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The inventors found that currently ternary boride cermets are mostly prepared by reaction vacuum sintering process, the shape and size of the product are limited, the production efficiency is low, and the cost is high

Method used

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preparation example Construction

[0040] The preparation method of ternary boride compound ceramics of the present invention comprises the following steps:

[0041] The raw materials for preparing ternary boride composite ceramics are as follows: 100 parts of nickel-iron alloy, 36-60 parts of metal molybdenum, 12-15 parts of aluminum cored tube, and 3-5 parts of steel cored tube.

[0042] (1) Preparation of aluminum cored tube

[0043] Select the pure aluminum thin-walled tube with outer diameter Φ15mm, wall thickness 1mm, model 1060, fill the mixed powder of ferroboron and monomer boron in the above-mentioned pure aluminum thin-walled tube, and the filling rate is 65% (mixed powder quality and mixed powder and The ratio of the sum of the mass of the thin-walled aluminum tube). The composition of the mixed powder of ferroboron and monomeric boron is calculated in parts by mass: 7-10 parts of ferroboron and 3-5 parts of monomeric boron. The length of the aluminum cored pipe is determined as required, preferab...

Embodiment 1

[0057] The raw materials for preparing ternary boride composite ceramics are, in parts by mass: 100 parts of FeNi20 nickel-iron alloy, 36 parts of metal molybdenum, 12 parts of aluminum cored tube, and 3 parts of steel cored tube.

[0058] (1) Preparation of aluminum cored tube

[0059] Select the pure aluminum thin-walled tube with outer diameter Φ15mm, wall thickness 1mm, model 1060, fill the mixed powder of ferroboron and monomer boron in the above-mentioned pure aluminum thin-walled tube, and the filling rate is 65% (mixed powder quality and mixed powder and The ratio of the sum of the mass of the thin-walled aluminum tube). The composition of the mixed powder of ferroboron and monomeric boron is as follows in parts by mass: 10 parts of ferroboron and 3 parts of monomeric boron. The length of the aluminum cored tube is 1000 mm.

[0060] (2) Preparation of steel-clad core tube

[0061] A thin-walled steel pipe with a diameter of Φ15mm and a wall thickness of 1mm is selec...

Embodiment 2

[0071] The raw materials for preparing ternary boride composite ceramics are as follows in parts by mass: 100 parts of nickel-iron alloy, 60 parts of metal molybdenum, 15 parts of aluminum cored tube, and 5 parts of steel cored tube.

[0072] (1) Preparation of aluminum cored tube

[0073] Select the pure aluminum thin-walled tube with outer diameter Φ15mm, wall thickness 1mm, model 1060, fill the mixed powder of ferroboron and monomer boron in the above-mentioned pure aluminum thin-walled tube, and the filling rate is 65% (mixed powder quality and mixed powder and The ratio of the sum of the mass of the thin-walled aluminum tube). The composition of the mixed powder of ferroboron and monomeric boron is: 10 parts of ferroboron and 5 parts of monomeric boron in parts by mass. The length of the aluminum cored tube is 800 mm.

[0074] (2) Preparation of steel-clad core tube

[0075] A thin-walled steel pipe with a diameter of Φ15mm and a wall thickness of 1mm is selected, and th...

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Abstract

The invention relates to ternary boride composite cermet with ferro-nickel as a raw material and a preparing method and application thereof. The ternary boride composite cermet is prepared from, by mass, 100 parts of ferro-nickel, 36-60 parts of molybdenum, 12-15 parts of an aluminum core tube and 3-5 parts of a steel core tube through electric arm melting. With the ferro-nickel as the raw material, the Mo2NiB2 and Mo2FeB2 composite ternary boride cermet is produced through the electric arm melting process, and compared with the vacuum reaction sintering process adopted widely at present, theproduction efficiency is high and the production cost is low.

Description

technical field [0001] The invention belongs to the field of preparation of composite cermets, in particular to the preparation of ternary boride composite cermets with nickel-iron alloys as raw materials. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily to be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. It has a series of properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. Excellent properties, especially its high hardness and wear resistance, remain basically unchanged even at a temperature of 500°C, and still have h...

Claims

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Application Information

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IPC IPC(8): C22C32/00C22C1/03C22C1/10
CPCC22C32/0073C22C1/1042C22C1/1052
Inventor 孙俊生高进强徐虎翟勋靳军杨帆
Owner SHANDONG UNIV
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