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Method for inspecting explosive for explosive welding

An inspection method, explosive welding technology, applied in the direction of material inspection products, fuel oil testing, etc., can solve problems such as inconvenient operation, waste of metal plates, unfavorable environmental protection, etc., to achieve simple and practical environmental protection operation, reduce possible waste, and reduce test doses Effect

Inactive Publication Date: 2012-07-11
ANHUI JIANGNAN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are the following problems in testing the composite property of explosives by adopting the method of actual trial on site: 1) the operation is inconvenient; 2) the amount of explosives used in a single test is large, which will bring noise, vibration and dust, which is not conducive to environmental protection; 3 ) Due to the actual use of metal materials in the field trial, if the explosive composite is unqualified, it will cause waste of metal plates

Method used

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  • Method for inspecting explosive for explosive welding
  • Method for inspecting explosive for explosive welding
  • Method for inspecting explosive for explosive welding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take the powdery emulsion explosive for explosive welding as an example. This powdery explosive can be used for explosive welding. The sample temperature should be controlled within normal temperature when testing its bulk density, intensity and detonation velocity:

[0037] Bulk density and moisture are detected according to the determination method of bulk density and moisture, respectively 0.52g / cm 3 , 1.8%;

[0038] Violence measurement: Take 50.0g of explosives, inject them into the paper tube slowly and evenly, gently level the surface of the explosives, put a round cardboard with holes on the explosives, insert the detonator shell into the center hole of the explosive charge, and insert the Depth 15mm. Other steps shall be carried out according to GB / T 12440-1990. The average value of the measured jerk is 9.56mm.

[0039] Detonation velocity measurement: Choose five empty paper tubes with a diameter of 32mm, no obvious deformation in specifications, similar le...

Embodiment 2

[0042] Take the modified ammonium oil explosive for explosive welding as an example. This powdery explosive can be used for explosive welding. The sample temperature should be controlled within normal temperature when testing its bulk density, intensity and detonation velocity:

[0043] Bulk density and moisture are detected according to the determination method of bulk density and moisture, respectively 0.69g / cm 3 , 0.5%;

[0044] Violence measurement: Take 50.0g of explosives, inject them into the paper tube slowly and evenly, gently level the surface of the explosives, put a round cardboard with holes on the explosives, insert the detonator shell into the center hole of the explosive charge, and insert the Depth 15mm. Other steps shall be carried out according to GB / T 12440-1990. The average value of the measured jerk is 9.86mm.

[0045] Detonation velocity measurement: Select five empty paper tubes with a diameter of 32mm, no obvious deformation in specifications, simil...

Embodiment 3

[0048] Take the expanded ammonium nitrate explosive for explosive welding as an example. This powdery explosive can be used for explosive welding. The sample temperature should be controlled within normal temperature when testing its bulk density, intensity and detonation velocity:

[0049] Bulk density and moisture are detected according to the determination method of bulk density and moisture, respectively 0.72g / cm 3 , 0.3%;

[0050] Violence measurement: Take 50.0g of explosives, inject them into the paper tube slowly and evenly, gently level the surface of the explosives, put a round cardboard with holes on the explosives, insert the detonator shell into the center hole of the explosive charge, and insert the Depth 15mm. Other steps shall be carried out according to GB / T 12440-1990. The average value of the measured jerk is 9.89mm.

[0051] Detonation velocity measurement: Select five empty paper tubes with a diameter of 32mm, no obvious deformation in specifications, s...

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Abstract

The invention relates to a method for inspecting an explosive for explosive welding. Whether the explosive is qualified is judged by measuring the bulk density, moisture, detonation velocity and brisance of the explosive and comparing measured data of the bulk density, moisture, detonation velocity and brisance of the explosive with corresponding standard values. By the method for inspecting the explosive for the explosive welding, the explosive consumption for tests and the waste of metal plates can be reduced; and the method achieves the effects of energy conservation and environment friendliness, is easy to operate, and has a practical effect.

Description

technical field [0001] The invention relates to a method for testing explosives, in particular to a method for testing explosives for explosive welding. Background technique [0002] Explosion welding is to use the energy generated by the explosion of explosives to achieve high-speed collision welding of two (or more) composite materials under the action of detonation waves. Explosion welding is a solid phase welding method, usually used for welding between dissimilar metals. Such as welding between metals such as titanium, copper, aluminum, steel, etc., can obtain welded joints with high strength. The welding of these metal materials with different chemical compositions and physical properties is difficult to achieve with other welding methods. Modern industry needs a variety of metal composite materials, and the explosive welding process has emerged as the times require. [0003] Industrial explosives for explosive welding must be reprocessed with industrial explosives ...

Claims

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Application Information

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IPC IPC(8): G01N33/22
Inventor 欧飞能方志梅鲍传齐刘小清
Owner ANHUI JIANGNAN CHEM IND CO LTD
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