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Ternary boride composite cermet with nickel-iron alloy as raw material, preparation method and application thereof

A technology of ternary boride and nickel-iron alloy, which is applied in the field of preparation of ternary boride composite cermets, can solve the problems of product shape and size limitation, low production efficiency and high cost, and achieve low production cost, high production efficiency and high strength. and good toughness

Active Publication Date: 2021-01-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The inventor 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 as follows: 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: 10 parts of ferroboron and 3 parts of monomeric boron in parts by mass. 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 selected, and the mater...

Embodiment 2

[0071]The raw materials for preparing ternary boride composite ceramics are as follows: 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 800mm.

[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 the material of the...

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Abstract

The invention relates to a ternary boride composite cermet with nickel-iron alloy as raw material and its preparation method and application. It is made of the following raw materials by arc melting: 100 parts of nickel-iron alloy, 36-60 parts of metal molybdenum, and aluminum core Tube 12‑15 parts, steel core tube 3‑5 parts. The present invention takes ferronickel alloy as main raw material, adopts electric arc smelting process to produce Mo 2 NiB 2 、Mo 2 FeB 2 The composite ternary boride cermet has high production efficiency and low production cost compared with the vacuum reaction sintering process widely used at present.

Description

technical field [0001] The invention belongs to the field of composite cermet preparation, and in particular relates to the preparation of ternary boride composite cermet by using nickel-iron alloy as raw material. 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 taken 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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Patent Type & Authority Patents(China)
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