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Composite 3Cr13-Cu (Al)-1Cr18Ni9Ti for energy-saving lampblack free boiler

A technology of 3cr13-cu and composite materials, applied in the field of metal composite materials, can solve the problems of increasing processing costs, double board perforation, ablation, etc.

Inactive Publication Date: 2009-09-23
ENG COLLEGE OF ENG CORPS PLA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. It is very difficult to form a three-layer composite material by explosive welding
If two explosive welding is used, the processing cost will be greatly increased
[0006] 3. Since the thickness of the cladding layers on both sides is less than 1mm, surface defects such as perforation, ablation and wrinkling are easy to occur in the cladding plate during the explosive welding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The production specification is 500×500×(0.5+5+0.5), and the material is 3Cr13-Cu-1Cr18Ni9Ti composite material for oil-free pan. Its production method is:

[0015] 1. Pretreatment process before explosion: Grinding and polishing the interface to be bonded with a grinding wheel and a cloth wheel to remove the oxide layer on the surface to achieve the purpose of flatness, lightness and cleanliness; The length of the four sides is 20mm, and the size of the cloth is the same as that of the double board; before the base and the double board are installed, wash the two joint surfaces with acetone to remove dust and oil stains on the surface.

[0016] 2. Explosive formula with low detonation velocity, low intensity and low detonation heat: choose powdered ammonium oil emulsion explosive, and add powdered industrial salt accounting for 28% of the total mass, 3-4% perlite and 2% saw powder in proportion, The detonation velocity of the explosive is about 1800m / s, and the intens...

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Abstract

The invention realizes the welding of composite 3Cr13-Cu (Al)-1Cr18Ni9Ti for a lampblack free boiler through three key technologies of wadding formulation optimization, welding base design and double cladding surface protection by adopting a once-explosion welding method, thereby greatly lowering the cost, improving the bonding strength of the interface of the composite, and being capable of replacing the material imported from foreign countries.

Description

technical field [0001] The invention relates to a metal composite material which utilizes the energy produced by the explosion of explosives as an energy source to make two metal surfaces to be welded form a solid phase combination. The invention belongs to the comprehensive technical field of metal composite materials and explosive welding. Background technique [0002] Explosive welding technology and explosive composite materials have been widely used in various fields such as petroleum, chemical industry, shipbuilding, electric power, aviation, aerospace, salt production, alkali production, metallurgy, atomic energy, mining, transportation, and machinery manufacturing. [0003] Metal materials such as stainless steel and iron have low thermal conductivity and uneven heat transfer. Using such metal materials to make pots will waste energy due to low thermal conductivity. Due to uneven heat transfer, not only will a large amount of oily smoke be generated, but also food wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J27/00B23K20/08B23K20/24B23K20/26C06B31/28B32B15/01
CPCY02P20/10
Inventor 史长根
Owner ENG COLLEGE OF ENG CORPS PLA UNIV OF SCI & TECH
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