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Compound plate and base blank explosive welding installation structure and method thereof

A technology of explosive welding and installation structure, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., to achieve the effects of avoiding explosive welding failure, reducing consumption and improving production efficiency

Active Publication Date: 2016-08-17
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an installation structure and method for the explosive welding of doubler plates and base blanks to avoid the reflection of compressive stress waves into tensile stress at the free surface in view of the shortcomings of the existing explosive welding technology. It can reduce or eliminate the boundary effect of explosion welding, improve the quality of explosion welding, and reduce the material consumption in the explosion process.

Method used

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  • Compound plate and base blank explosive welding installation structure and method thereof
  • Compound plate and base blank explosive welding installation structure and method thereof

Examples

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Embodiment 1

[0017] This embodiment provides an installation structure for the explosive welding of the doubler plate and the base blank, the structure is as follows figure 1 and figure 2 As shown, it includes the base blank 3 arranged above the bunker 4, the doubler plate 8 arranged in parallel above the base blank 3, and the explosive frame 7 attached to the doubler plate 8 and filled with explosives 5. The explosive frame 5 The detonating end of the double plate 8 is provided with a detonating charge package 1; a front guide plate 2 extending outward in the length direction of the double plate is welded at the initiating end of the double plate 8, and a rear guide plate 2 extending outward in the length direction of the double plate is welded at the end of the double plate 8. The guide plate 6 is welded on both sides of the doubler plate 8 in the width direction, and a wing plate 9 extending outwards in the width direction of the doubler plate is welded; it is provided on the end corre...

Embodiment 2

[0019] This example is a method for explosive welding of doubler panels and base blanks. An industrial test of explosive welding of large-area doubler panels and slabs was carried out in an abandoned roadway of -186m in an underground mine. The explosion site has spacious space, stable rocks, and good ventilation. , Excavate an explosion crater in the roadway of the working area in advance and backfill yellow sand. The specification of the explosion crater is: length × width × depth = 6000 × 2000 × 1000. The intermediate slab scrapped in the hot rolling process is used as the base blank, and the matching 0Cr18Ni9Ti stainless steel plate is processed as the double plate. The specification of the slab is: length×width×thickness=4571×1151×180, and the specification of the double plate is: length×width ×thickness=4575×1155×16, weld a common carbon steel front guide plate with a length of 350mm at the initiation end of the doubler plate, weld a rear guide plate with a length of 300m...

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Abstract

The invention discloses a compound plate and base blank explosive welding installation structure which comprises a base blank arranged above an explosive hole, a compound plate arranged above the base blank in parallel and an explosive frame which is arranged at the upper portion of the compound plate and attached to the compound plate and contains explosives. An igniting primer is arranged at the ignition end of the explosive frame. A front guide plate extending outwards in the length direction of the compound plate is welded to the ignition end of the compound plate. A rear guide plate extending outwards in the length direction of the compound plate is welded to the tail end of the compound plate. The two sides of the width direction of the compound plate are each provided with a wing plate in a welded mode, wherein the wing plates extend outwards in the width direction of the compound plate. The end, corresponding to the tail end of the compound plate, of the base blank and the two sides of the width direction of the base blank are each provided with a blank material attached to the base blank. The phenomena of peeling, breakage and the like caused compression stress waves are reflected into stretching stress waves on a free face can be avoided so as to reduce or eliminate boundary effects possibly generated during explosive welding.

Description

technical field [0001] The invention belongs to the field of explosive processing of metal materials, in particular to an installation structure and method for explosive welding of doubler plates and base blanks, which are suitable for explosive processing of different metal materials. Background technique [0002] Explosive welding (also known as "explosive composite") is a method of welding between metals with explosive explosion as energy. It uses the detonation of explosives to cause high-speed oblique collisions on the metal surfaces placed up and down, and produces plastic deformation of the metal on the joint surface. Thereby welding them together to form a variety of explosive welding materials. On the premise of satisfying specific conditions, the doubler plate and the base plate or the base blank can be effectively welded together. This specific condition mainly includes the type of explosive, the way of detonation, the position of the detonation point, the distanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08
CPCB23K20/08
Inventor 范庆霞李龙黄佳伟章书谦范思远胡海洋
Owner NANJING IRON & STEEL CO LTD