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Method for hot-rolling and preparing composite plates by means of hot spraying preset brazing filler materials

A technology of thermal spraying and clad plate, which is applied in the direction of metal rolling, coating, manufacturing tools, etc., can solve the problems of poor bonding, large deformation, unstable quality, etc., and meet the requirements of reducing rolling deformation, deformation The effect of low rate and high bonding strength

Inactive Publication Date: 2012-07-18
SHENYANG HANGXIN METAL COMPOSITE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a method for preparing a composite plate by thermal spraying and hot rolling with pre-set solder, the purpose of which is to solve the large deformation of the composite plate that needs to be rolled, and the gap between the substrate and the cladding plate on the interface that occurs when the composite plate is processed in an atmospheric environment. Oxidation problems lead to poor bonding and unstable quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Use 300X 200mm, 0.3mm thick pure titanium plate as the cladding plate. The surface of the titanium plate is first degreased with acetone, and then pickled to remove the surface oxide film. Preparation of pickling solution: 10-20% (150-300g / L) nitric acid (70%) + 1-2% (12-24g / L) hydrofluoric acid (60%) + water, use temperature 48-52°C, Then rinse with water and blow dry.

[0038] 2. Use 300X 200mm pure aluminum plate with a thickness of 3mm as the substrate. The pretreatment method of the pure aluminum plate is as follows: first, polish it with a wire brush, and then use 50 parts of sodium carbonate, 15 parts of potassium chromate, 25 parts of sodium hydroxide, and 1000 parts of water to prepare a cleaning solution. Treat at 80°C for 25-30 minutes, take it out, rinse with hot water, and blow dry.

[0039] 3. Immediately after the pretreatment of the aluminum plate, the zinc-copper-aluminum solder layer with a diameter of 3mm is sprayed by arc spraying. The chemica...

Embodiment 2

[0047] 1. Use 300X 200mm, AZ91 magnesium alloy plate with a thickness of 4mm as the substrate. The surface of the magnesium alloy plate is first degreased with acetone, then rinsed with water, dried, and then polished with a steel wire brush to remove the surface oxide film and roughen it.

[0048] 2. Use 300X 200mm pure aluminum plate with a thickness of 1mm as the cladding plate. The pre-treatment method of pure aluminum plate is: degreasing treatment first, and then polishing with wire brush to remove surface oxide film and roughening treatment.

[0049] 3. Immediately arc spray the zinc-copper-aluminum solder layer on the composite surface of the pretreated magnesium alloy plate and aluminum plate. The chemical composition of the solder is: 6% Al, 3.5% Cu, the balance of Zn, and the melting point of the solder is about 400°C. The solder was in the form of a wire with a diameter of 3 mm.

[0050] 4. The process parameters of arc spraying aluminum-copper-zinc ternary allo...

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Abstract

The invention belongs to the field of machining of metal materials, and particularly relates to a method for manufacturing metal composite plates. The method includes cleaning and roughening to-be-compounded surfaces of two metal plates at first; then uniformly spraying a thin brazing filler material layer on the surface of a joint of a surface plate or a base plate; then overlaying the surface plate and the base plate; rolling the surface plate and the base plate within the range of 10% and 30%; and obtaining a rolled composite plate. The method aims to solve problems that deformation of composite plates required to be rolled is high, and poor combination and unstable quality are caused by oxidation of base plates and surface plates on boundaries when the composite plates are machined in an atmospheric atmosphere.

Description

Technical field: [0001] The invention belongs to the field of metal material processing, in particular to a method for manufacturing a metal composite plate. Background technique: [0002] With the development of science and technology, many fields have put forward higher requirements for the variety and performance of materials, and there is an urgent need for materials with excellent comprehensive properties. For example, people hope that these materials have long service life, safety and reliability, high strength and toughness. And smaller specific gravity, and sometimes composite materials are required to have excellent heat resistance and corrosion resistance, and the price is low, which can save rare and precious metals. However, it is impossible to achieve the above performance requirements on a single metal material at the same time; however, these functions can be realized through the mutual compounding of several materials with different physical properties. Meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21B1/38B23K1/19B23K35/28B23K35/30C23C4/08C23C4/129C23C4/131
Inventor 张忠礼李子健谢强
Owner SHENYANG HANGXIN METAL COMPOSITE TECH
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