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A kind of preparation method of aluminum bronze-stainless steel bimetallic composite material

A composite material and stainless steel technology, which is applied in the field of preparation of aluminum bronze-stainless steel bimetallic composite materials, can solve the problems of low interface bonding strength of bimetallic composite materials, achieve high bonding strength and prevent secondary production.

Active Publication Date: 2016-10-05
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing an aluminum bronze-stainless steel bimetallic composite material, which solves the problem of low interfacial bonding strength of the bimetallic composite material prepared by the existing method

Method used

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  • A kind of preparation method of aluminum bronze-stainless steel bimetallic composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Prepare the aluminum bronze QAl9-4 / stainless steel 1Cr18Ni9Ti bimetallic composite material, machine the stainless steel 1Cr18Ni9Ti into a cylinder with a size of Φ30mm×50mm, and prepare the aluminum bronze QAl9-4 material with a size of Φ30mm×60mm;

[0027] Soak stainless steel 0Cr18Ni9Ti in 10% nitric acid alcohol for pickling, pickle for 1min, then wash with alcohol and store in kerosene for later use;

[0028] Wash the pickled stainless steel 1Cr18Ni9Ti with alcohol to wash the surface oil stains, and then put it into a physical vapor deposition furnace for vacuuming. When the vacuum degree reaches 6.67×10 -2 After Pa, deposit CuNi10 material on the surface of stainless steel 1Cr18Ni9Ti for 15 minutes;

[0029] Put the surface deposited stainless steel 1Cr18Ni9Ti in the corundum crucible, and then put the aluminum bronze QAl9-4 material on the stainless steel 1Cr18Ni9Ti, put the corundum crucible ZRS-18Q microcomputer program-controlled vacuum high-temperature sinte...

Embodiment 2

[0031] Prepare the aluminum bronze QAl10-3-1.5 / stainless steel 0Cr17Ni14Mo2 bimetallic composite material, machine the stainless steel 0Cr17Ni14Mo2 into a Φ30mm×50mm cylinder, and prepare the aluminum bronze QAl10-3-1.5 material with a size of Φ30mm×60mm;

[0032] Soak stainless steel 0Cr17Ni14Mo2 in 10% nitric acid alcohol for pickling, pickling for 2 minutes, then wash with alcohol and store in kerosene for later use;

[0033] Rinse the pickled stainless steel 0Cr17Ni14Mo2 with alcohol to wash the oil stains on the surface, and then put it into a physical vapor deposition furnace for vacuuming. When the vacuum reaches 6.67×10 -2 After Pa, deposit CuNi15 material on the surface of stainless steel 0Cr17Ni14Mo2 for 20min;

[0034] Put the surface deposited stainless steel 0Cr17Ni14Mo2 in the corundum crucible, then put the aluminum bronze QAl10-3-1.5 material on the stainless steel 0Cr17Ni14Mo2, put the corundum crucible ZRS-18Q microcomputer program-controlled vacuum high-temp...

Embodiment 3

[0036] Prepare the aluminum bronze QAl10-4-4 / stainless steel 0Cr25Ni20 bimetallic composite material, machine the stainless steel 0Cr25Ni20 into a Φ30mm×50mm cylinder, and prepare the aluminum bronze QAl10-4-4 material with a size of Φ30mm×60mm;

[0037]Soak stainless steel 0Cr25Ni20 in 10% nitric acid alcohol for pickling, pickle for 3 minutes, then wash with alcohol and store in kerosene for later use;

[0038] Rinse the pickled stainless steel 0Cr25Ni20 with alcohol to wash the oil stains on the surface, and then put it into a physical vapor deposition furnace for vacuuming. When the vacuum reaches 6.67×10 -2 After Pa, deposit CuNi20 material on the surface of stainless steel 0Cr25Ni20 for 25 minutes;

[0039] Place the surface-deposited stainless steel 0Cr25Ni20 in the corundum crucible, then put the aluminum bronze QAl10-4-4 material on the stainless steel 0Cr25Ni20, put the corundum crucible ZRS-18Q microcomputer program-controlled vacuum high-temperature sintering furna...

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Abstract

The invention discloses a method for preparing an aluminum bronze-stainless steel bimetal composite material. Firstly, the pickled stainless steel is subjected to surface deposition treatment, and then the surface deposition-treated stainless steel is placed in a corundum crucible, and then the aluminum bronze is placed in a corundum crucible. On top of the stainless steel, the corundum crucible is placed in a vacuum sintering furnace for immersion treatment to obtain an aluminum bronze-stainless steel bimetallic composite material. The preparation method of the aluminum bronze-stainless steel bimetallic composite material of the present invention utilizes the difference in melting point between aluminum bronze and stainless steel to ensure that the aluminum bronze melts under high temperature conditions, and the stainless steel remains solid, and through liquid-solid diffusion, the metallurgical combination of the two is realized, and the formed In addition to the superior properties of aluminum bronze and stainless steel, the bimetallic composite material also has high bonding strength, and its interface bonding strength can reach more than 600Mpa.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a method for preparing an aluminum bronze-stainless steel bimetallic composite material. Background technique [0002] Aluminum bronze is a copper alloy with good comprehensive properties, especially excellent wear resistance and corrosion resistance. It is widely used in the manufacture of various high-load wear-resistant parts, such as gears, bearings, discs, guide rocker bushings, flywheels, Fixing nuts, nozzles, etc. However, while improving the strength, hardness and wear resistance of aluminum bronze alloy, its elongation, plasticity and impact toughness will be relatively low. Therefore, it cannot be used alone as an engineering structural part in a high-strength, high-fatigue-resistant environment use. [0003] In addition to excellent corrosion resistance, stainless steel also has the advantages of relatively high strength, good tough...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D23/04
CPCB22D23/04
Inventor 邹军涛梁淑华杨晓红王献辉肖鹏杨鑫
Owner XIAN UNIV OF TECH
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