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Method for preparing flexible linear cutting cable

A cutting cable and line type technology, applied in the field of explosive cutting, can solve the problems of weak cutting ability, easy gasification, affecting cutting ability, etc., and achieve the effect of strong cutting ability and good flexibility

Active Publication Date: 2020-02-14
ZHONGBEI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The process of making cutting cables with pure aluminum is cumbersome and the cutting ability is weak, which cannot meet the wide application space of cutting cables
Although lead material has good bending performance and high density, it is prone to gasification during explosive cutting, which affects its cutting ability
Also, flexible cutting cables made from such soft metals cannot be bent multiple times without breaking

Method used

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  • Method for preparing flexible linear cutting cable
  • Method for preparing flexible linear cutting cable
  • Method for preparing flexible linear cutting cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 9g RTV-2, add dropwise 0.60g tetraethyl orthosilicate, 0.326g acetyl tributyl citrate, stir evenly, continue to dropwise add 0.074g dibutyltin dilaurate, stir and mix evenly to form a viscous mixture .

[0029] Pour the formed viscous mixture into a steel mold with a length of 100 mm, a width of 10 mm, and a depth of 13 mm, press it into an "凵" shape, and cure it at room temperature for 1 hour to obtain a cutting cable shell with a "凵" structure.

[0030] Weigh 15g of dynamite RDX, 3.375g of RTV-2, mix well, add dropwise 0.225g ethyl orthosilicate, 0.117g acetyl tributyl citrate, stir well, continue to add dropwise 0.027g dibutyltin dilaurate, stir and mix Uniformly form a viscous mixture.

[0031] Pour the formed viscous mixture into the solidified cutting cable shell, and press it with a pressing plate with a V-shaped protrusion at a cone angle of 60°, so that the surface of the viscous mixture forms a V-shaped energy-gathering The grooves are cured at room te...

Embodiment 2

[0036] Weigh 12g RTV-2, add dropwise 0.65g ethyl orthosilicate, 0.387g acetyl tributyl citrate, stir evenly, continue to dropwise add 0.086g dibutyltin dilaurate, stir and mix evenly to form a viscous mixture .

[0037] Pour the formed viscous mixture into a steel mold with a length of 100 mm, a width of 10 mm, and a depth of 13 mm, press it into an "凵" shape, and cure it at room temperature for 1 hour to obtain a cutting cable shell with a "凵" structure.

[0038] Weigh 17g of dynamite RDX, 3.385g of RTV-2, mix well, add dropwise 0.233g ethyl orthosilicate, 0.132g acetyl tributyl citrate, stir well, continue to add dropwise 0.032g dibutyltin dilaurate, stir and mix Uniformly form a viscous mixture.

[0039] Pour the formed viscous mixture into the solidified cutting cable shell, and press it with a pressing plate with a V-shaped protrusion at a cone angle of 60°, so that the surface of the viscous mixture forms a V-shaped energy-gathering The grooves are cured at room temper...

Embodiment 3

[0044]Weigh 49.50g RTV-2, add dropwise 3.264g ethyl orthosilicate, 1.637g acetyl tributyl citrate, stir evenly, continue to add dropwise 0.374g dibutyltin dilaurate, stir and mix evenly to form a viscous mixture body.

[0045] Pour the formed viscous mixture into a steel mold with a length of 500 mm, a width of 15 mm, and a depth of 23 mm, press it into an "凵" shape, and solidify it at room temperature for 1 hour to obtain a cutting cable shell with a "凵" structure.

[0046] Weigh 160g of dynamite RDX, 49.568g of RTV-2, mix well, add dropwise 2.254g ethyl orthosilicate, 1.873g acetyl tributyl citrate, stir well, continue to add dropwise 0.427g dibutyltin dilaurate, stir and mix Uniformly form a viscous mixture.

[0047] Pour the formed viscous mixture into the solidified cutting cable shell, and press it with a pressing plate with a V-shaped protrusion at a cone angle of 60°, so that the surface of the viscous mixture forms a V-shaped energy-gathering The grooves are cured a...

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Abstract

The invention discloses a method for preparing a flexible linear cutting cable. The method comprises the following steps: vulcanizing and curing double-component room-temperature vulcanized silicone rubber by using a vulcanizing agent so as to prepare a cutting cable sheath; filling the sheath with an explosive and the double-component room-temperature vulcanized silicone rubber, and pressing an energy gathering groove; performing vulcanizing and curing by using the vulcanizing agent so as to prepare a cutting cable chemical bar with the energy gathering groove; and further mixing and fillingmetal powder and the double-component room-temperature vulcanized silicone rubber into the energy gathering groove of the cutting cable chemical bar, and performing pressing under the action of vulcanizing and curing of the vulcanizing agent, so as to form an energy gathering cover. The energy gathering cover of the flexible linear cutting cable prepared by using the method not only has very goodflexibility, but also is tightly combined with the cutting cable chemical bar, so that the cutting cable has very good flexibility and bending performance, and the explosion cutting capability can beimproved.

Description

technical field [0001] The invention belongs to the technical field of explosive cutting, and relates to a linear energy-gathering cutting wire, in particular to a preparation method of a flexible linear cutting wire with good flexibility and explosive cutting ability. Background technique [0002] Explosive energy-concentrated cutting is a special explosive cutting technology developed in the middle of the 20th century. It adopts shaped shaped charge technology, and uses the pressure formed by explosive explosion to crush the shaped cover to form a high-speed linear jet, which can cut various metal and non-metal materials in a very short time. [0003] In order to make the cutting wire form a stable metal jet during the explosive cutting process, the energy-gathering cover of the cutting wire is required to have the characteristics of high density, fast sound velocity and not easy to gasify. Therefore, most of the existing conventional energy-gathering cutting cables use r...

Claims

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Application Information

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IPC IPC(8): C06B25/34C06B23/00C06B21/00C06D5/00C08L83/04C08K5/5419C08K5/12C08K5/11
CPCC06B21/0041C06B23/001C06B25/34C06D5/00C08K5/11C08K5/12C08K5/5419C08L83/04
Inventor 袁俊明陈卓于雁武李福华林长江刘玉存荆苏明罗凯田秀琦张峰峰
Owner ZHONGBEI UNIV
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