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Fully-constrained weak-sparse metal powder explosive compaction and powder plate explosion cladding method

A metal plate and metal powder technology, which is applied in the field of explosive composites, can solve the problems of inability to prepare composite materials by plate-to-board, the difficulty of combining metal powder and plates, and the high equipment requirements. Effect

Pending Publication Date: 2018-07-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is based on the respective advantages of the traditional coating preparation technology and the explosive composite technology, combined with the powder explosive compaction technology, the complex equipment requirements for the coating preparation technology are high, a single coating can only reach the micron level, and the physical properties Metal powders and plates with large differences are difficult to combine or have low bonding strength, and some materials cannot be prepared through plate-plate composites due to their physical properties. A full-constraint weak sparse metal powder explosive compaction and powder-plate explosive composite method is proposed.

Method used

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  • Fully-constrained weak-sparse metal powder explosive compaction and powder plate explosion cladding method
  • Fully-constrained weak-sparse metal powder explosive compaction and powder plate explosion cladding method
  • Fully-constrained weak-sparse metal powder explosive compaction and powder plate explosion cladding method

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example 1

[0028] Explosive 2 adopts industrial emulsion explosive with a density of 1.1g / cm 3 , dosage is 150g. Metal plate 3 is made of T2 red copper, with a size of 80×100×12mm 3 , the shape of opening 4 is figure 1 As shown, the specific size is the middle rectangle 10×4mm 2 , both ends are a semicircle of φ4mm, the distance between the centers of the two openings is 16mm, the upper end of the opening is 2mm from the upper surface of the metal plate, and the lower end of the opening is 6mm from the lower surface of the metal plate. The metal powder 5 is tungsten powder with a particle size of 1-3 μm, and the packing density is 5 g / cm 3 . Clean and polish the inner wall of the opening before filling the powder. After filling the metal powder 5 and sealing it, if figure 1 Place all the components, place the backing plate 6, the metal plate 3, and the explosive 2 horizontally from bottom to top in order, and use edge detonation, and the detonator 1 is located at the midpoint of th...

example 2

[0030] Explosive 2 adopts industrial emulsion explosive with a density of 1.1g / cm 3 , dosage is 150g. Metal plate 3 is made of T2 red copper, with a size of 80×100×12mm 3 , the shape of opening 4 is figure 1 As shown, the specific size is the middle rectangle 10×4mm 2 , both ends are a semicircle of φ4mm, the distance between the centers of the two openings is 16mm, the upper end of the opening is 2mm from the upper surface of the metal plate, and the lower end of the opening is 6mm from the lower surface of the metal plate. Metal powder 5 is tungsten powder with a particle size of 45 μm and a packing density of 4.5 g / cm 3 . Clean and polish the inner wall of the opening before filling the powder. After filling the metal powder 5 and sealing it, if figure 1 Place all the components, place the backing plate 6, the metal plate 3, and the explosive 2 horizontally from bottom to top in order, and use edge detonation, and the detonator 1 is located at the midpoint of the side...

example 3

[0032] Explosive 2 adopts industrial emulsion explosive with a density of 1.1g / cm 3 , dosage is 150g. Metal plate 3 is made of T2 red copper, with a size of 80×100×12mm 3 , the shape of opening 4 is figure 2As shown, it is a round hole of φ5mm, the distance between the centers of the two openings is 12mm, the upper end of the opening is 2mm from the upper surface of the metal plate, and the lower end of the opening is 5mm from the lower surface of the metal plate. Metal powder 5 is tungsten powder with a particle size of 45 μm and a packing density of 4.6 g / cm 3 . Clean and polish the inner wall of the opening before filling the powder. After filling the metal powder 5 and sealing it, if figure 1 Place all the components, place the backing plate 6, the metal plate 3, and the explosive 2 horizontally from bottom to top in order, and use edge detonation, and the detonator 1 is located at the midpoint of the side of the explosive 2 perpendicular to the opening direction. D...

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Abstract

The invention discloses a fully-constrained weak-sparse metal powder explosive compaction and powder plate explosion cladding method. The method comprises the following steps: (1) processing a metal plate: forming openings in the side surface of the metal plate, and cleaning the inner walls of the openings, wherein the shapes and sizes of the openings can be designed and adjusted according to therequirements; (2) filling metal powder: sealing one opened side of the metal plate, pouring the metal powder into the openings step by step, compacting the metal powder to the greatest extent, after all the openings are compactly filled, sealing the other side, wherein the filling density is relevant with the materials of the metal powder; and (3) putting the metal plate filled with the metal powder on a cushion plate, putting an explosive on the metal plate, firing the explosive through a detonator so as to drive the upper part of the metal plate to downwards compact the metal powder to enable the metal powder to be closely combined with the metal plate, so as to finish the cladding between the metal powder and the plate. Compared with traditional explosion cladding techniques, the methodhas the advantages that by fully constraining the metal powder, sparse waves are weakened, and the compaction of the metal powder and the cladding of the powder plate material can both be realized.

Description

technical field [0001] The invention belongs to the technical field of explosive compounding, and in particular relates to a method for explosive compaction of fully constrained weakly sparse metal powder and explosive compounding of powder plates (especially the combination of metal powder and plates with relatively different material physical properties). Background technique [0002] Explosive composite technology uses the strong impact force generated by the explosion of explosives to make metal and metal collide at high speed. The surface of the impact part is in an instant high temperature and high pressure state. The oxide and gas adsorption layer on the metal surface hinder the extremely thin surface layer (about hundreds Micron) is discharged in the form of metal spray, so the impact part of the base material and the cladding material exposes a clean surface, so that the two metal surfaces are crimped under extremely high pressure, which theoretically achieves a bond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/08B22F7/02
CPCB22F3/08B22F7/02B22F2007/042
Inventor 马宏昊陈艳沈兆武杨明
Owner UNIV OF SCI & TECH OF CHINA
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