Method for manufacturing underwater manual quick cutting material

A rapid cutting and manual technology, applied in the direction of welding/cutting media/materials, metal processing equipment, manufacturing tools, etc., can solve the problems of insufficient support for cutting materials and unsatisfactory cutting, and achieve high cutting efficiency, wide range of cutting objects, High safety effect

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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  • Method for manufacturing underwater manual quick cutting material
  • Method for manufacturing underwater manual quick cutting material
  • Method for manufacturing underwater manual quick cutting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Step 1, the mixing mixer will Al powder, Fe powder, Cu 2 O powder, CuO powder and rare earth cerium are composed of Cu 2 O powder 3-20%, CuO powder 5-25%, Al powder 2-10%, rare earth cerium 1-7%, and the balance is Fe powder and mix evenly; prepare steel strip and aluminum strip, the steel The strip is SPCC-SD type cold-rolled steel strip, and its chemical composition is: by weight percentage, C≤0.15%, Mn≤0.60%, P≤0.1%, S≤0.025%, and the rest is iron and unavoidable impurities;

[0045] Step 2. Using a multi-functional powder core wire forming machine, using steel strips and aluminum strips, it is manufactured by multi-roll continuous rolling and multi-channel continuous wire drawing and diameter reduction. After strip cutting, strip rolling, powder filling, sealing, wire drawing, Straightening and shearing processes to produce cutting wires coated with steel strips and aluminum strips respectively;

[0046] Step 3. The steel pipe prepared by the forging process is us...

Embodiment 2

[0055] This embodiment is different from Example 1 in that: Al powder, Fe powder, Cu 2 O powder, CuO powder and rare earth cerium 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, of which 4 are steel sheaths and 1 is aluminum sheaths. The wire speed is about 120m / min and the straightening speed is about 22m / min.

[0056] Table 2

[0057] Powder core composition

[0058] 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.

Embodiment 3

[0060] This embodiment is different from Example 1 in that: Al powder, Fe powder, Cu 2 O powder, CuO powder and rare earth cerium 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 aluminum sheath and metal powder, and the rest are iron sheathed wires. For leather-wrapped metal powder, the wire preparation speed is about 80m / min, and the straightening speed is about 18m / min.

[0061] table 3

[0062] Powder core composition

% by weight

Cu 2 O powder

10％

CuO powder

25％

Aluminum powder

2％

rare earth cerium

7％

iron powder

margin

[0063] 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 2.5 mm / s.

[0064] The material of the present invention can be applied to the cutting of underwater...

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Abstract

The invention discloses a method for manufacturing an underwater manual quick cutting material. The method includes a step one, uniformly mixing by weight, from 3 to 20% of Cu2O powder, from 5 to 25% of CuO powder, from 2 to 10% of Al powder, from 1 to 7% of rare-earth cerium and the balanced Fe powder by a mixing stirrer; a step two, manufacturing to obtain cutting wires by a multi-roll continuous rolling and multi-pass continuous wire drawing and reducing method via working procedures of strap cutting, strap rolling, powder filling, sealing, wire drawing, straightening and shearing; a step three, using a steel pipe manufactured by forging technology as an external cutting pipe; and a step four, assembling the cutting wires in an inner cavity of the cutting pipe to form the underwater manual quick cutting material. The material is used for quickly cutting and detaching steel structures and reinforced concrete in underwater environments, does not need cutting gas or a cutting power source, and is high in cutting efficiency, wide in cut object range, convenient and safe to carry, simple in operation 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 and a preparation method thereof. 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 for the demolition of underwater metal structures and reinforced concrete structures...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/22B23P15/00
Inventor 柳吉兰衣衍亮
Owner 柳吉兰
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