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Method for applying kraft paper instead of spot welding flash to metal explosion composite plate

A technology of explosive composite board and kraft paper, which is applied in metal processing, metal processing equipment, welding equipment, etc., can solve the problems of affecting the quality of explosive welding, increasing weld seams, and wasting materials, so as to save rare and precious metal cladding materials and save wood The cost, the effect of increasing the width of the drug distribution

Active Publication Date: 2014-10-01
HUBEI JINLAN SPECIAL METAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For titanium, high-grade stainless steel and other expensive doubler boards or rare metal doubler boards, it is uneconomical and wasteful to adopt the first method; in actual production, the materials purchased on the market are restricted by specifications and sizes, and the boards according to customer needs Sometimes the doubler board needs tailor welding, which will waste materials or increase the weld seam. In order to save doubler board materials and reduce costs, the second method can be adopted
[0005] The second method is to extend the charge length by pasting, welding galvanized steel sheets, and butt-joining flat steel bars around the cladding plate to eliminate the impact of the charge boundary effect on the welding quality of the cladding plate. The width of the welded plate is generally 20 —40mm, using the welding flash method to eliminate the effect of charge boundary effect is good, but the operation is relatively complicated, and the double plate will have a certain amount of deformation after welding flash, which will affect the quality of explosive welding
[0008] According to the search, there is no patent application identical to the present invention in China

Method used

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  • Method for applying kraft paper instead of spot welding flash to metal explosion composite plate

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Example 1 , Explosive welding production (316L+Q345R) 3 / 16×1800×4500mm metal composite board:

[0023] 316L stainless steel plate for compound board 3×1800×4500mm,

[0024] Q345R carbon steel plate for base plate 16×1800×4500mm;

[0025] Since the width of the most common 316L stainless steel plate on the market is 1800 mm, it is necessary to tailor and weld the 316L plate and increase the explosion flash, which is very wasteful. Therefore, the production process layout is based on the whole plate without tailor welding, that is, it needs to use 200g / ㎡Kraft paper instead of spot welding flash to increase the width of the drug distribution, the operation steps are as follows:

[0026] ① Cutting kraft paper strips: because the height H of the drug frame designed by this explosive welding process is 50 mm, the width of the drug distribution is increased B for 30 mm, the maximum length of 200g / ㎡ kraft paper is 1100 mm, so the kraft paper strip is cut so that the lengt...

Embodiment 2

[0030] Example 2 , Explosive welding production (TA2+Q235B) 2 / 14×1500×4200mm metal composite board:

[0031] TA2 pure titanium plate for complex board 2×1500×4200 mm;

[0032] Q235B carbon steel plate for base plate 14×1500×4200 mm;

[0033] The maximum plate width of the TA2 pure titanium plate available in the market is 1500mm. If the double plate needs to leave an explosion flash margin, it needs to cut the whole plate for typesetting and welding, which will cause a great waste of precious metal TA2 plate, so it is necessary to Use 200g / ㎡ kraft paper instead of spot welding flash to increase the cloth width, the operation steps are as follows:

[0034] ① Cutting kraft paper strips: because the height H of the drug frame designed by this explosive welding process is 45 mm, the width of the drug distribution is increased B for 25 mm, the maximum length of 200g / ㎡ kraft paper is 1100mm, the length of the cut kraft paper strip = 1100mm, so that the width of the kraft paper ...

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Abstract

The invention discloses a method for applying kraft paper instead of spot welding flash to a metal explosion composite plate, and relates to the field of metal explosion welding. The method comprises replacement of the selection of a spot welding flash material and application of kraft paper instead of spot welding flash to the metal explosion composite plate. The method comprises the steps of kraft paper cutting, drawing and folding, and explosive distribution. By replacing the spot welding flash with the kraft paper, increase of the peripheral width of the composite plate, spot welding and sticking of the flash are not required, the explosive distribution widths on both sides of the composite plate can be increased, the influence of the charging boundary effect on the welding quality of the composite plate is eliminated, the explosive welding quality is ensured, and a large quantity of rare and expensive metal composite materials are saved; the kraft paper can also be taken as an explosive frame for replacing a wooden explosive frame, thereby saving the wood cost, replacing a plastic explosive frame and prevention environmental pollution. The method is easy and convenient to operate, is safe and environmental friendly, and has a remarkable comprehensive economic benefit. The method can be widely popularized and applied to metal explosion welding composite plate production enterprises.

Description

technical field [0001] The invention relates to metal explosion welding, in particular to a method for using kraft paper instead of spot welding burrs in a metal explosion composite plate. Background technique [0002] Boundary effect is a common problem in metal explosion welding. The existence of boundary effect greatly reduces the bonding strength and recombination rate of the joint surface of metal explosive clad plate. According to the analysis of the boundary effect of the metal explosion composite plate and its influencing factors, in order to reduce the scope and area of ​​the boundary effect area of ​​the metal explosion composite plate and the amount of area cut, and save materials, two methods can be adopted: [0003] The first way is to make the doubler plate wider than the base plate by a few millimeters to several tens of millimeters. The purpose of this is to increase the width of the explosives, thereby reducing the impact of the sparse wave at the boundary o...

Claims

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Application Information

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IPC IPC(8): B23K20/08B23K20/26
CPCB23K20/08B23K20/24B23K2101/18
Inventor 阚立贵王雄铀铀
Owner HUBEI JINLAN SPECIAL METAL MATERIAL
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