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Method for manufacturing composite material of metal/ceramic layer structure

A composite material and manufacturing method technology, applied in the direction of metal layered products, ceramic layered products, chemical instruments and methods, etc., can solve the problems of large difference in thermal expansion coefficient, inability to integrally form layered composite materials, and application of structural materials, etc. Achieve huge economic significance and social benefits, excellent comprehensive performance, and wide application fields

Active Publication Date: 2012-08-08
TIANJIN GONGDA GALVANIZING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current problem of ceramic and metal brazing is that the thermal expansion coefficients of the two are very different, which will cause residual stress at the interface, which may lead to cracking of the joint during use; it cannot be effectively used for large-area bonding; the price of solder is high
[0004] Although the layered structure composite materials connecting ceramics and metals have made significant progress, there are still many problems that need to be solved urgently: one is the wettability of ceramics and metals; the other is the relaxation or elimination of stress; the third is industrial implementation. And application problems: because the current connection method is only suitable for local or microcompositing of materials, the integral molding of layered composite materials cannot be used as a structural material, and it is not suitable for industrial implementation and application

Method used

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  • Method for manufacturing composite material of metal/ceramic layer structure
  • Method for manufacturing composite material of metal/ceramic layer structure
  • Method for manufacturing composite material of metal/ceramic layer structure

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The method of the invention is used to manufacture composite material plates.

[0033] 1. Preparation of bonding alloy: 3 components of bonding alloy are designed as: Fe, 5%; Ti, 3%; Zn, 10%; Al,

[0034] The balance; the melting point of the high melting point phase is 860°C; the melting point of the low melting point phase is 420°C, and the ratio of solid and liquid phases is 7:3; the preparation method is: put 82% of the total mass of the alloy (the same below) into aluminum Heat to 840°C in a dry pot, add 10% Zn by the total mass of the alloy after the aluminum is melted, and stir to dissolve as a whole; then add 5% Fe and 3% Ti by the total mass of the alloy in turn, dissolve while stirring, and cool down after the dissolution is complete Instantly.

[0035] 2. Prepare the composite material: prepare by tooling method: use tooling mold 4 to realize the reaction of bonding alloy 3 and ceramic plate 1 (see Picture 1-1 ). The specific parameters are: ceramic plate ...

Embodiment 2

[0038] The method of the invention is used to manufacture composite material plates.

[0039] 1. Preparation of bonding alloy: The 3 components of the bonding alloy are designed as follows: Fe, 5.5%; Ti, 3%; Zn, 9.5%; Al, the balance; the melting point of the high melting point phase is designed to be 880°C; ℃, the proportion fraction of solid-liquid two-phase is 8:2, all the other are the same as embodiment 1;

[0040] 2. Composite material preparation: use the shape characteristics of the composite material to prepare, that is, use the shape of the metal plate 2 to process it into a "tooling mold" 4, and apply a thin layer of high-temperature-resistant inorganic coating 5, and then make the bonding Alloy 3 is reacted with metal plate 2, and bonding alloy 3 is reacted with ceramic plate 1 (see Figure 1-2 ). The bonding alloy 3 is 2.5mm thick.

[0041] The composite molding process is as follows: the inner and outer walls of the metal plate 2 are coated with high-temperatu...

Embodiment 3

[0043] Adopt the inventive method to manufacture composite casing (referring to figure 2 ).

[0044] 1. Preparation of bonding alloy: The 3 components of the bonding alloy are designed as follows: Ti, 2%; Zn, 13%; Al, the balance; the melting point of the high melting point phase is 730°C, the melting point of the low melting point phase is 420°C, and the ratio of solid and liquid phases The score is preferably 6:4. The preparation method is as follows: put 88% aluminum of the total mass of the alloy into a dry pot and heat it to 800°C, add 10% Zn after the aluminum is melted, stir and dissolve as one; then add 2% Ti, dissolve while stirring, wait for the dissolution When complete, let it cool down.

[0045] 2. Preparation of composite casing: the specific parameters are: ceramic tube 1 size: Φ130*7*1500mm; steel pipe 2 size: Φ112*2*1500mm; bonding alloy 3 composition: Ti, 2%; Zn, 13% ; Al, the balance, the thickness of the bonding alloy layer is 2.2mm.

[0046] The c...

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Abstract

The invention discloses a method for manufacturing a composite material of a metal / ceramic layer structure. The method for manufacturing the composite material of the metal / ceramic layer structure adopts the following technologies: 1, bonding alloy preparation: the bonding alloy is Al-Zn-Fe-Ti alloy and comprises the following components in percentage by mass: 5%-40% of Zn, 0.5%-10% of Fe, 2%-20% of Ti, and the balance is Al; the bonding alloy is composed of a high melting point phase and a low melting point phase, is in solid phase under the normal temperature and is in solid-liquid phases with solid phase being 60%-80% and liquid phase being 40%-20%; and the melting point of the bonding alloy, the interface reaction phase and the phase composition can be adjusted by utilizing the contents of added composition elements of Zn, Ti and Fe; and 2, composite material preparation: heating ceramic and metal to a processing temperature simultaneously, then making the bonding alloy carry out a recombination reaction with the ceramic and the metal, making the ceramic and the metal be in composite molding together under the condition that the temperature is 80-120 DEG C higher than the melting point of the high melting point phase of the bonding alloy, and the composite material of the metal / ceramic structure can be formed by demoulding.

Description

technical field [0001] The invention relates to composite material technology, in particular to a method for manufacturing a metal-ceramic layered structure composite material, which is suitable for high corrosion-resistant environments and fields requiring relatively high mechanical properties. Background technique [0002] Ceramic materials have the advantages of low density, high specific strength, high temperature resistance, and stable chemical properties at high temperatures, so they are widely used in aviation, aerospace, metallurgy, petrochemical and other fields. However, as a structural material, ceramics are brittle and are very sensitive to defects. The inherent hardness and brittleness of ceramics make it difficult to process and manufacture. Metal materials have high toughness, ductility and machinability. If the ceramic material is combined with the metal material, it can become an ideal structural material. The connection technology of ceramics and metals i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04B32B18/00B32B37/00
Inventor 曹晓明温鸣赵树鹏
Owner TIANJIN GONGDA GALVANIZING EQUIP CO LTD
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