Underwater manual rapid cutting material

A technology for fast cutting and cutting of materials, applied in welding/cutting media/materials, manufacturing tools, metal processing equipment, etc. It can solve the problems of insufficient support for cutting materials and inability to meet cutting requirements, achieving high cutting efficiency and a wide range of cutting objects. , the effect of low manufacturing cost

Active Publication Date: 2015-05-06
柳吉兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the powder core components and component content of the manual rapid cutting material are only suitable for cutting in air, and the heat released by the combustion of the exothermic alloy CuO and Fe in oxygen is far from enough to support the continuous burning of the cutting material in water , so that it cannot satisfy its underwater cutting

Method used

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  • Underwater manual rapid cutting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Wherein, the iron powder particle size is -80 to 200 mesh, the CuO powder particle size is -80 to 200 mesh, and the CuO powder particle size is -80 to 200 mesh. 2 The particle size of the O powder is -80-200 mesh, and the particle size of the rare earth cerium is -300 mesh.

[0050] Then, it is manufactured by multi-roller continuous rolling and multi-channel continuous wire drawing and diameter reduction through a multifunctional powder core wire forming machine. After strip cutting, strip rolling, powder filling, sealing, wire drawing, straightening and shearing processes, it can be obtained Cut the wire; the wire preparation speed is about 40m / min, and the straightening speed is about 5m / min.

[0051] The steel pipe prepared by the forging process is used as the external cut pipe, and the inside and outside of the steel pipe are plated with a 0.1mm thick copper layer by electroplating process; the polyethylene tape is used to wrap the outside of the cut pipe as an in...

Embodiment 2

[0058] This embodiment is different from Example 1 in that: Al powder, Fe powder, Cu 2 O powder, CuO powder and rare earth alloy powder are mixed evenly according to the content ratio shown in Table 2, and 5 cutting wires are assembled in the inner cavity of the cutting pipe, wherein, 4 are steel sheaths, and 1 is aluminum sheath, The wire preparation speed is about 120m / min, and the straightening speed is about 22m / min.

[0059] Table 2

[0060] Powder core composition

% by weight

Cu 2 O powder

20％

CuO powder

5％

[0061] Aluminum powder

5％

rare earth cerium

7％

iron powder

margin

[0062] The underwater manual rapid cutting material prepared by the above method was tested on a 45# steel plate with a thickness of 20 mm at a water depth of 1 meter, and the cutting speed was 1.4 mm / s.

[0063] Wherein, the cutting pipe can also use the above-mentioned copper-iron-copper three-layer co...

Embodiment 3

[0065] This embodiment is different from Example 1 in that: Al powder, Fe powder, Cu 2 O powder, CuO powder and rare earth alloy powder are mixed evenly according to the content ratio shown in Table 3. When there are 7 wires in the pipe, 1 to 3 wires can be covered with metal powder on aluminum skin, and the rest are iron wires. For metal powder wrapped in leather, the wire preparation speed is about 80m / min, and the straightening speed is about 18m / min.

[0066] Wherein, the cutting pipe can also use the above-mentioned copper-iron-copper three-layer composite pipe, and the cutting pipe wound by the composite metal strip can realize the flexible bending of the cutting pipe, and is coiled together like a soft rope.

[0067] table 3

[0068] Powder core composition

% by weight

Cu 2 O powder

10％

CuO powder

25％

Aluminum powder

2％

rare earth cerium

7％

iron powder

margin

[0069] The underwater m...

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Abstract

The invention relates to an underwater manual rapid cutting material, which is characterized by comprising a hollow tubular structure which is composed of external cutting tubing and a plurality of internal cutting wires; an insulation layer is arranged at the outer side of the cutting tubing; wherein the cutting tubing is a steel tube which is manufactured by using a fogging process; a copper plated layer 0.1mm thick is plated in and out of the steel tube by using an electroplating process; the cutting wire is composed of the outer skin and the powder core; the outer skin comprises two materials, one is steel strip, and the other is aluminum strip; the ratio of the two different outer skin materials of the cutting wire is (2:1)-(6:1); the powder core contains the following components in percent by weight: 3-20% of Cu2O powder, 5-25% of CuO powder, 2-10% of Al powder, 1-7% of rare earth cerium and the balance of Fe powder. The material is used for rapid cutting, assembling and disassembling of underwater steel structures and reinforced concrete; the gas and the power supply do not need to be cut; and the material is high in cutting efficiency, wide in cutting object range, convenient and safe to carry over, simple to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of metal material cutting for underwater manual rapid cutting, and relates to a manual underwater rapid cutting material. Background technique [0002] The 21st century is the century of the ocean. With the development of the ocean, a large number of offshore buildings have been built. At the same time, a large number of underwater buildings such as abandoned docks and abandoned drilling platforms will need to be demolished to remove obstacles for navigation. The difficulty of breaking the barriers of these underwater buildings is that the underwater part of the structure can only be dismantled underwater, and these underwater buildings have reinforced concrete structures, which also increases the difficulty of dismantling. [0003] At present, the underwater cutting technology is mainly used to dismantle underwater metal structures and reinforced concrete structures. The commonly used underwater cutting tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/00B23K35/22
Inventor 柳吉兰衣衍亮
Owner 柳吉兰
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