Unlock instant, AI-driven research and patent intelligence for your innovation.

Room temperature curing silicone rubber-based flexible linear composite liner and preparation method thereof

A room temperature curing, silicone rubber 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 explosive cutting ability, strong cutting ability and good flexibility

Active Publication Date: 2020-01-24
ZHONGBEI UNIV +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The process of making cutting wires with pure aluminum is cumbersome and the cutting ability is weak, which contradicts the wide application range of cutting wires
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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Room temperature curing silicone rubber-based flexible linear composite liner and preparation method thereof
  • Room temperature curing silicone rubber-based flexible linear composite liner and preparation method thereof
  • Room temperature curing silicone rubber-based flexible linear composite liner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 30g of copper powder with a particle size of 48-50μm and 1.42g of RTV-2, add them together to the mixer, and stir at a speed of 180r / min for 5min to make them evenly mixed.

[0027] Add 0.095g ethyl orthosilicate and 0.051g acetyl tributyl citrate dropwise to the mixer, continue stirring for 5 minutes, then add dropwise 0.012g dibutyltin dilaurate, continue stirring for 10 minutes to make it evenly mixed to form a viscous hybrid.

[0028] Pour the formed mixture into a special mold for a linear drug-form cover with a cone angle of 60°, and cure for 3 hours. After the curing is complete, disassemble the template and take out the flexible linear composite drug-form cover.

[0029] The flexible line-shaped composite liner was used to carry out the explosion cutting steel plate test in the special explosion hole laboratory. When the explosion height is zero gap, it can penetrate through the A3 steel plate with a thickness of 5.0mm.

Embodiment 2

[0031] Weigh 50g of tungsten powder with a particle size of 60-75μm, and 2.37g of RTV-2, and add them together to the stirrer, and stir at a speed of 200r / min for 5min to make them evenly mixed.

[0032] Add 1.075g ethyl orthosilicate and 0.5376g acetyl tributyl citrate dropwise to the mixer, continue stirring for 5 minutes, then add dropwise 0.015g dibutyltin dilaurate, continue stirring for 15 minutes to make it evenly mixed to form a viscous hybrid.

[0033] Pour the formed mixture into a special mold for a linear drug-form mask with a cone angle of 60°, cure for 4 hours, disassemble the template after curing is complete, and take out the flexible linear composite drug-form mask.

[0034] The flexible line-shaped composite liner was used to carry out the explosion cutting steel plate test in the special explosion hole laboratory. When the explosion height is zero gap, it can penetrate through the A3 steel plate with a thickness of 4.0mm.

Embodiment 3

[0036] Weigh 30g each of copper powder and nickel powder with a particle size of 45-70μm, and 2.83g of RTV-2, add them to the stirrer, and stir at a speed of 250r / min for 5min to make them evenly mixed.

[0037] Add 0.29g ethyl orthosilicate and 0.64g acetyl tributyl citrate dropwise to the stirrer, continue stirring for 5 minutes, then add dropwise 0.022g dibutyltin dilaurate, continue stirring for 15 minutes to make it evenly mixed to form a viscous hybrid.

[0038] Pour the formed mixture into a special mold for a linear drug-shaped mask with a cone angle of 60°, and cure for 4.5 hours. After the curing is complete, disassemble the template and take out the flexible linear composite drug-shaped mask.

[0039] The flexible line-shaped composite liner was used to carry out the explosion cutting steel plate test in the special explosion hole laboratory. When the explosion height is zero gap, it can penetrate through the A3 steel plate with a thickness of 4.5mm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
fatigue bending timesaaaaaaaaaa
Login to View More

Abstract

The invention discloses a room temperature curing silicone rubber-based flexible linear composite liner and a preparation method thereof. The liner is prepared from the following raw materials in percentage by weight: 75-97wt% of metal powder, 2.7-22.5wt% of double-component room temperature vulcanized silicone rubber, 0.18-1.5wt% of vulcanizing agent tetraethoxysilane, 0.1-0.8wt% of plasticizer and 0.02-0.2wt% of organic tin catalyst. The preparation method comprises the following steps: mixing the raw materials, pouring the mixture into a liner mold, and curing to obtain the flexible linearcomposite liner. When the room temperature curing silicone rubber-based flexible linear composite liner is used for filling explosives to prepare a flexible cutting cable, the cutting capacity is higher than that of a conventional lead material liner, and the liner is high in flexibility and toughness and can be quickly bent into a required cutting shape.

Description

technical field [0001] The invention belongs to the technical field of explosive cutting, and relates to a medicine-shaped cover for energy-gathering cutting wires, in particular to a compound medicine-shaped cover suitable for flexible energy-gathering cutting wires. Background technique [0002] Explosive energy-concentrated cutting is a special explosive cutting technology developed in the middle of the 20th century. It adopts energy-shaping charge technology, and uses the pressure formed by explosive explosion to crush the powder cover to form a high-speed linear jet, which can cut metal and non-metal materials in a short time. [0003] The medicine type cover is a key factor affecting the cutting ability. 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 and not easy to gasify. Therefore, most of the existing conventional...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B22F3/22B22F1/00C22C9/00C22C27/04C22C30/02F42D3/00
CPCB22F5/00B22F3/22C22C9/00C22C27/04C22C19/03C22C30/02F42D3/00B22F1/107
Inventor 袁俊明于雁武陈卓林长江李福华刘玉存荆苏明罗凯赵伟夏韬
Owner ZHONGBEI UNIV