CN102699552B - Underwater manual rapid cutting material - Google Patents
Underwater manual rapid cutting material Download PDFInfo
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- CN102699552B CN102699552B CN201210008269.5A CN201210008269A CN102699552B CN 102699552 B CN102699552 B CN 102699552B CN 201210008269 A CN201210008269 A CN 201210008269A CN 102699552 B CN102699552 B CN 102699552B
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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
The invention belongs to the metal material cutting technique field for manual fly-cutting under water, relate to a kind of manual fast cutting material under water.
Background technology
21 century is century of ocean, and along with the exploitation of ocean, a large amount of off-shore structures is built, and meanwhile, the submerged structures such as a large amount of waste and old harbours, Discarded Drilling Materials platform also will be caused to need to be removed, and are navigation removing obstacles.And the difficult point of these submerged structure barrier-breakings is that underwater portion structure can only be removed under water, and these submerged structures have reinforced concrete structure, too increase the difficulty of dismounting.
Now, remove metal structure and reinforced concrete structure under water and mainly adopt subsea cutting technology, subsea cutting technology aerobic conventional at present-combustible gas cutting, under water oxygen-arc cutting, metal-electric arc cutting, submarine mechanical cutting, water jet cutting, underwater plasma cutting, blast cutting etc.Oxygen-combustible gas cutting is unwell to cutting corrosion resisting steel, stainless steel, cast iron and non-ferrous metal than titanium, oxygen under water-arc cutting, metal-electric arc cutting, submarine mechanical cutting, water jet cutting, underwater plasma cutting all need livewire work, there is potential safety hazard, and water jet cutting, equipment required for underwater plasma cutting are comparatively complicated, equipment manufacturing cost is expensive, huge not easily portable, and blast cutting danger is larger.
Patent application CN201010536018.5 discloses a kind of material for fast hand cutting, a kind of material for fast hand cutting, it is characterized in that: the hollow tubular structure be made up of incising pipes and the many inner cutting wire materials of outside, wherein said incising pipes is the steel pipe adopting Forging Technology to be prepared from, and the inside and outside electroplating technology that adopts of steel pipe is respectively coated with the thick copper plate of 0.1mm; Described cutting wire material length is identical with incising pipes, be made up of crust and powder core, described crust is mild steel 08F steel band, and its chemical composition is: by weight percentage, C 0.05% ~ 0.11%, Si≤0.03%, Mn 0.25% ~ 0.50%, P≤0.035%, S≤0.035%, Ni≤0.25%, Cr≤0.10%, all the other are iron and inevitable impurity; Described powder core by weight percentage, consists of CuO powder 2 ~ 8%, cerium 0.4 ~ 2%, and surplus is iron powder.But, the powder core component of this material for fast hand cutting and constituent content are only suitable for cutting in atmosphere, its heat release alloy CuO and Fe liberated heat that burns in oxygen is nowhere near and supports cutting material continual burning in water, thus cannot meet it and cut under water.
Therefore, need badly and produce on the basis of high-energy principle at research arc ignition heat release alloy material, exploitation is a kind of without the need to cutting combustion gas and cutting power supply, cutting speed is fast, safety, easy to carry, the simple to operate and imderwater cutting material that cost is low, for fly-cutting and the dismounting of underwater environment steel construction and armored concrete.
Summary of the invention
The present invention is directed to the defect of existing various subsea cutting technology, utilize the combustion characteristics of exothermic material in oxygen, there is provided a kind of without the need to cutting combustion gas and cutting power supply, cutting efficiency is high, cutting object scope is wide, easy to carry, safety, material for fast hand cutting and preparation method thereof under water that simple to operate and cost is low, for metal and armored concrete under water fly-cutting and crack.
Technical scheme of the present invention is: one is material for fast hand cutting under water, it is characterized in that: this cutting material is made up of the incising pipes of outside and many cutting wire materials of inside, has a layer insulating outside incising pipes; Described cutting wire material length is identical with incising pipes length, cutting wire material is made up of crust and powder core, described crust comprises bi-material, a kind of crust is SPCC-SD type cold-rolled strip, and its chemical composition is: by weight percentage, C≤0.15%, Mn≤0.60%, P≤0.1%, S≤0.025%, all the other are iron and inevitable impurity; Another kind of crust is aluminium strip, and the ratio of the cutting wire material of two kinds of different skin materials is 2: 1 ~ 6: 1, and described powder core by weight percentage, consists of Cu
2o powder 3 ~ 20%, CuO powder 5 ~ 25%, Al powder 2 ~ 10%, cerium 1 ~ 7%, surplus is Fe powder.
Further, outside incising pipes is the steel pipe adopting Forging Technology to be prepared from, the inside and outside electroplating technology that adopts of steel pipe is respectively coated with the thick copper plate of 0.1mm, described cutting wire material incising pipes inner wall even distribution externally, and forms hollow structure in incising pipes center.
Further, outside incising pipes is formed by composite metal belt coiling, and realizes the flexible bending of incising pipes thus, and externally pipe material inner wall is uniform for described cutting wire material, and forms hollow structure in incising pipes center.
Further, the upper and lower surface of described composite metal belt adopts electroplating technology to be respectively coated with the thick copper plate of 0.1mm.
Further, composite metal belt is that mid portion is thick, the structure of thin edge; In composite metal belt winding process, edge is overlapped, the consistency of thickness of the thickness after imbricate and composite metal belt mid portion, thus the outer surface smoother of the incising pipes formed after making to be wound around cutting wire material.
Further, described iron particle size is-80 ~ 200 orders, and CuO Powder Particle Size is-80 ~ 200 orders, Cu
2o Powder Particle Size is-80 ~ 200 orders, and cerium granularity is-300 orders.
Further, described insulating barrier is the polyethylene glue belt be wrapped in outside incising pipes or the epoxy resin layer be coated in outside incising pipes.
Further, the described diameter of cutting wire material and the ratio scope of the wall thickness of incising pipes are 2.1 ~ 3.
Further, SPCC-SD type cold-rolled strip is replaced with mild steel 08F steel band, chemical composition after replacement is: by weight percentage, C 0.05% ~ 0.11%, Si≤0.03%, Mn 0.25% ~ 0.50%, P≤0.035%, S≤0.035%, Ni≤0.25%, Cr≤0.10%, all the other are iron and inevitable impurity.
Further, SPCC-SD type cold-rolled strip is replaced with mild steel 08F steel band, the chemical composition of mild steel 08F steel band is: by weight percentage, C 0.05% ~ 0.11%, Si≤0.03%, Mn 0.25% ~ 0.50%, P≤0.035%, S≤0.035%, Ni≤0.25%, Cr≤0.10%, all the other are iron and inevitable impurity.
The invention has the beneficial effects as follows:
1) portability, whole system mainly contains striking power supply, industrial oxygen cylinder, cutting gun etc., in cutting process, battery striking power supply, industrial oxygen cylinder are in more than the water surface, operating personnel only need to carry cutting gun and cutting material works under water, singlely just can to carry, complicated heavy equipment need not be needed as machine cuts, plasma cut etc.;
2) cutting power supply and cutting combustion gas is not needed, the cutting material that only needs to ignite under water just can disconnect striking power supply, by comburant oxygen effect, under utilizing self liberated heat held water of cutting material burning, the further sustained combustion of material for fast hand cutting is cut workpiece, does not need cutting power supply and cutting combustion gas;
3) by changing the material of crust, after particularly adopting aluminium to do crust, enhancing the inflammability of cutting material, the energy of releasing in its combustion process is improved further;
4) cutting efficiency is high, and material for fast hand cutting burning can reach the high temperature of more than 5000 DEG C, and cutting efficiency is 8-20 times of oxygen-fuel gas cutting, and have higher cutting speed, cutting efficiency is high.
5) cutting object scope is wide, material for fast hand cutting utilizes the liberated heat of material combustion own to support the further sustained combustion of cutting material under water, cutting material of the present invention is even carrying out operation under water more than 60 meters of depth of waters, simultaneously, this material is subject to the restriction of institute's cutting object material composition unlike oxy-acetylene flame, all metal materials can be cut, also can the nonmetallic materials such as Concrete Cutting, brick or rock, cutting object scope is wide.
6) cost is low, this under water material for fast hand cutting do not need complicated equipment, material composition used is mainly iron, and therefore, manufacturing cost is lower.
Accompanying drawing explanation
Accompanying drawing 1 is incising pipes is the schematic diagram of material for fast hand cutting under water that steel pipe is formed;
The cross sectional representation of accompanying drawing 2 to be incising pipes be material for fast hand cutting under water that composite metal belt forms;
Accompanying drawing 3 is cross sectional representation of the material for fast hand cutting under water of specification 1;
Accompanying drawing 4 is cross sectional representation of the material for fast hand cutting under water of specification 2;
Accompanying drawing 5 is cross sectional representation of the material for fast hand cutting under water of specification 3;
Accompanying drawing 6 is schematic diagrames of composite metal belt.
Wherein, 1-incising pipes; 2-cutting wire material; 3-silk material crust; 4-insulating barrier
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing 1 ~ 6, the invention will be further described:
One of the present invention material for fast hand cutting under water, this cutting material is made up of the incising pipes of outside and many cutting wire materials of inside, has a layer insulating outside incising pipes; Described cutting wire material length is identical with incising pipes length, cutting wire material is made up of crust and powder core, described crust comprises bi-material, a kind of crust is mild steel steel band, another kind of crust is aluminium strip, the ratio of the cutting wire material of two kinds of different skin materials is 2: 1 ~ 6: 1, and described powder core by weight percentage, consists of Cu
2o powder 3 ~ 20%, CuO powder 5 ~ 25%, Al powder 2 ~ 10%, cerium 1 ~ 7%, surplus is Fe powder.
Cu in cutting wire material in the present invention
2adding of O powder and CuO powder is to utilize Cu
2o powder and CuO powder and aluminium, iron react releases amount of heat, is supported in carrying out smoothly of imderwater cutting.Work as Cu
2o powder percentage by weight is less than 3%, CuO powder percentage by weight when being less than 5%, and liberated heat is few, and cutting speed is less, and works as Cu
2o powder percentage by weight is greater than 20%, CuO powder percentage by weight when being greater than 25%, and reaction is violent, and burning velocity is too fast, is not easy to control.Cu
2add while O powder and CuO powder can make course of reaction steadily, continue, imderwater cutting process is also more steady.Adding of Al powder is because aluminium and Cu
2amount of heat is released in O powder and the reaction of CuO powder, and its content range is by Cu
2the content of O powder and CuO powder determines.
Cerium add the efficiency of combustion that can improve cutting material, promote cutting material Thorough combustion in oxygen.When cerium percentage by weight is less than 1%, very little to the raising effect of efficiency of combustion, in 1 ~ 7% scope, along with the increase of cerium weight ratio, also increasing to the raising of efficiency of combustion, but more than 7%, change not quite compared with 7% to the raising of efficiency of combustion, and cerium price is higher, in order to cost-saving, elect 1 ~ 7% as.
In the preferred embodiment of the present invention, a kind of crust is SPCC-SD type cold-rolled strip, and its chemical composition is: by weight percentage, C≤0.15%, Mn≤0.60%, P≤0.1%, S≤0.025%, and all the other are iron and inevitable impurity; Described powder core by weight percentage, consists of Cu
2o powder 3 ~ 20%, CuO powder 5 ~ 25%, Al powder 2 ~ 10%, cerium 1 ~ 7%, surplus is Fe powder.Another skin material is aluminium.
According to the different demands of engineer applied, crust steel band can also be mild steel 08F steel band: by weight percentage, C 0.05% ~ 0.11%, Si≤0.03%, Mn 0.25% ~ 0.50%, P≤0.035%, S≤0.035%, Ni≤0.25%, Cr≤0.10%, all the other are iron and inevitable impurity.
According to the different demands of engineer applied, the cutting material that specification is different can be processed, such as:
Specification 1: select wall thickness to be about the forging and stamping seamless steel pipe of 0.7mm, adopt electroplating technology again, within it outer both sides plate the copper plate of about thick 0.1mm, or prepare the composite pipe with copper-iron/copper three-decker, the upper and lower surface of the composite metal belt of described manufacture composite pipe adopts electroplating technology to be respectively coated with the thick copper plate of 0.1mm.
Prepare composite metal belt, Forging Technology can be adopted to be prepared into composite metal belt that thickness is the iron/copper-iron of 0.8mm, then carry out copper facing, copper facing flow process is acetone oil removing-washing-7% watery hydrochloric acid rust cleaning-washing-electronickelling bottoming-washing-copper facing-wash-dry up; Being wrapped in by composite metal belt on many cutting wire materials, being prepared into the cutting material with hollow structure, have a layer insulating outside incising pipes, is be wrapped in outside incising pipes by a kind of polyethylene tape to be formed.As shown in Figure 6, composite metal belt is that mid portion is thick, the structure of thin edge; Composite metal belt is wound around and makes in composite pipe process, and edge is overlapped, the consistency of thickness of the thickness after imbricate and composite metal belt mid portion, thus makes the outer surface smoother of the incising pipes formed.
The total wall thickness of incising pipes is about 0.9mm; Internal diameter 5.2mm, external diameter 7mm, the incising pipes of preparation is about as 600mm.
Cutting wire material diameter is 2.4mm, is about as 600mm, and totally 3 are assemblied in incising pipes.Externally pipe material inner wall is uniform for described cutting wire material, and forms hollow structure in incising pipes center.
Specification 2: select wall thickness to be about the forging and stamping seamless steel pipe of 0.8mm, then adopt electroplating technology, within it outer both sides plate the copper plate of about thick 0.1mm, as mentioned above, or prepares the composite pipe with copper-iron/copper three-decker.The total wall thickness of tubing is about 1mm; Internal diameter 6.6mm, external diameter 8.6mm, the incising pipes of preparation is about as 600mm.
Cutting wire material diameter is 2.4mm, is about as 600mm, and totally 5 are assemblied in incising pipes.
Specification 3: select wall thickness to be about the forging and stamping seamless steel pipe of 0.8mm, then adopt electroplating technology, within it outer both sides plate the copper plate of about thick 0.1mm, as mentioned above, or prepares the composite pipe with copper-iron/copper three-decker.The total wall thickness of tubing is about 1mm; Internal diameter 8mm, external diameter 10mm, the incising pipes of preparation is about as 600mm.
Cutting wire material diameter is 2.4mm, is about as 600mm, and totally 7 are assemblied in incising pipes.
Find through experimental study, the ratio scope of the described diameter of cutting wire material and the wall thickness of incising pipes, 2.1 ~ 3, can reach good combustion efficiency.
According to the different demands of engineer applied, different percentage by weight powder core processing cutting materials can be adopted, such as:
Embodiment 1
Wherein, described iron particle size is-80 ~ 200 orders, and CuO Powder Particle Size is-80 ~ 200 orders, Cu
2o Powder Particle Size is-80 ~ 200 orders, and cerium granularity is-300 orders.
Then by multi-functional powder cored filament material forming machine, adopt multiple roll continuous rolling and the continuous hot candied tube reducing method of multiple tracks to manufacture, through cutting out band, roll band, fill out powder, sealing, wire drawing, alignment and cutting operation, obtain cutting wire material; Prepare silk material speed for about 40m/min, Aligning speed is about 5m/min.
The steel pipe adopting Forging Technology to be prepared from is as the incising pipes of outside, and the inside and outside electroplating technology that adopts of steel pipe is respectively coated with the thick copper plate of 0.1mm; Polyethylene tape is adopted to be wrapped in outside incising pipes as insulating barrier.
Be assembled in described incising pipes inner chamber by 3 cutting wire materials, form material for fast hand cutting under water, wherein, two is mild steel crust, and one is aluminium crust.
Wherein, incising pipes also can use the composite pipe of aforesaid copper-iron/copper three-decker, can be realized the flexible bending of incising pipes by the incising pipes of composite metal belt coiling, and is coiled in together as tightrope stock.
Table 1
| Powder core composition | Percentage by weight % |
| Cu 2O powder | 3％ |
| CuO powder | 5％ |
| Aluminium powder | 10％ |
| Cerium | 1％ |
| Iron powder | Surplus |
Adopt the material for fast hand cutting under water that said method is prepared from, carry out cutting test to the 45# steel plate at the depth of water 1 meter of thick 20mm in, cutting speed is 0.6mm/s.
Embodiment 2
Present embodiment is as different from Example 1: just Al powder, Fe powder, Cu
2o powder, CuO powder and rare earth alloy powder mix by content proportioning as shown in table 2, are assemblied in incising pipes inner chamber, wherein by 5 cutting wire materials, 4 is steel crust, 1 is aluminium crust, and prepare silk material speed for about 120m/min, Aligning speed is about 22m/min.
Table 2
| Powder core composition | Percentage by weight % |
| Cu 2O powder | 20％ |
| CuO powder | 5％ |
| Aluminium powder | 5％ |
| Cerium | 7％ |
| Iron powder | Surplus |
Adopt the material for fast hand cutting under water that said method is prepared from, carry out cutting test to the 45# steel plate at the depth of water 1 meter of thick 20mm in, cutting speed is 1.4mm/s.
Wherein, incising pipes also can use the composite pipe of aforesaid copper-iron/copper three-decker, can be realized the flexible bending of incising pipes by the incising pipes of composite metal belt coiling, and is coiled in together as tightrope stock.
Embodiment 3
Present embodiment is as different from Example 1: just Al powder, Fe powder, Cu
2o powder, CuO powder and rare earth alloy powder mix by content proportioning as shown in table 3, time in tubing containing 7 rhizoid material, 1 ~ 3 wherein can be had to be aluminium crust bag metal powder, and remaining is iron crust bag metal powder, prepare silk material speed for about 80m/min, Aligning speed is about 18m/min.
Wherein, incising pipes also can use the composite pipe of aforesaid copper-iron/copper three-decker, can be realized the flexible bending of incising pipes by the incising pipes of composite metal belt coiling, and is coiled in together as tightrope stock.
Table 3
| Powder core composition | Percentage by weight % |
| Cu 2O powder | 10％ |
| CuO powder | 25％ |
| Aluminium powder | 2％ |
| Cerium | 7％ |
| Iron powder | Surplus |
Adopt the material for fast hand cutting under water that said method is prepared from, carry out cutting test to the 45# steel plate at the depth of water 1 meter of thick 20mm in, cutting speed is 2.5mm/s.
Material of the present invention can be applied to the cutting of metal material or nonmetallic materials under water; Usual nonmetallic materials can be concrete, brick or rock, and in addition, the incising pipes due to composite metal belt coiling can realize the flexible bending of incising pipes, and therefore, its length can not be subject to the restriction of underwater environment and equipment.
Claims (5)
1. a material for fast hand cutting under water, this cutting material is made up of the incising pipes of outside and many inner cutting wire materials, has a layer insulating outside incising pipes; Cutting wire material length is identical with incising pipes length, it is characterized in that: cutting wire material is made up of crust and powder core, crust comprises bi-material, a kind of crust is SPCC-SD type cold-rolled strip, and its chemical composition is: by weight percentage, C≤0.15%, Mn≤0.60%, P≤0.1%, S≤0.025%, all the other are Fe and inevitable impurity; Another kind of crust is aluminium strip, and the ratio of the cutting wire material of two kinds of different skin materials is 2:1 ~ 6:1, and powder core by weight percentage, consists of Cu
2o powder 3 ~ 20%, CuO powder 5 ~ 25%, Al powder 2 ~ 10%, cerium 1 ~ 7%, surplus is Fe powder,
Outside incising pipes is the steel pipe adopting Forging Technology to be prepared from, and the inside and outside electroplating technology that adopts of steel pipe is respectively coated with the thick copper plate of 0.1mm, cutting wire material incising pipes inner wall even distribution externally, and forms hollow structure in incising pipes center;
Or the incising pipes of outside is formed by composite metal belt coiling, and realize the flexible bending of incising pipes thus, externally pipe material inner wall is uniform for described cutting wire material, and forms hollow structure in incising pipes center; Composite metal belt is that mid portion is thick, the structure of thin edge; In composite metal belt winding process, edge is overlapped, the consistency of thickness of the thickness after imbricate and composite metal belt mid portion, thus the outer surface smoother of the incising pipes formed after making to be wound around cutting wire material;
Fe Powder Particle Size is-80 ~ 200 orders, and CuO Powder Particle Size is-80 ~ 200 orders, Cu
2o Powder Particle Size is-80 ~ 200 orders, and cerium granularity is-300 orders.
2. a material for fast hand cutting under water as claimed in claim 1, is characterized in that: the upper and lower surface of described composite metal belt adopts electroplating technology to be respectively coated with the thick copper plate of 0.1mm.
3. a material for fast hand cutting under water as claimed in claim 1, is characterized in that: described insulating barrier is the polyethylene glue belt be wrapped in outside incising pipes or the epoxy resin layer be coated in outside incising pipes.
4. a material for fast hand cutting under water as claimed in claim 1, is characterized in that: the ratio scope of the described diameter of cutting wire material and the wall thickness of incising pipes is 2.1 ~ 3.
5. a material for fast hand cutting under water as claimed in claim 1, it is characterized in that: replace SPCC-SD type cold-rolled strip with mild steel 08F steel band, the chemical composition of mild steel 08F steel band is: by weight percentage, C0.05% ~ 0.11%, Si≤0.03%, Mn 0.25% ~ 0.50%, P≤0.035%, S≤0.035%, Ni≤0.25%, Cr≤0.10%, all the other are Fe and inevitable impurity.
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| CN102873464A (en) * | 2012-10-22 | 2013-01-16 | 江苏科技大学 | Welding stick provided with middle insulating layer |
| CN103909357A (en) * | 2014-04-08 | 2014-07-09 | 北京工业大学 | Flux-cored cutting wire for closed space cutting under pressure |
| CN107755855B (en) * | 2017-11-21 | 2020-03-31 | 山东省科学院海洋仪器仪表研究所 | Oxygen-free underwater cutting electrode and underwater steel cutting method |
| CN115229376B (en) * | 2021-11-10 | 2023-09-05 | 北京汉锐益新科技有限公司 | Rope-shaped metal cutting material for underwater thermal cutting |
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| US4069407A (en) * | 1975-12-10 | 1978-01-17 | Brower Jerome S | Underwater cutting rod |
| US4654496A (en) * | 1984-04-11 | 1987-03-31 | Peter L. DeMarsh | Underwater oxy-arc cutting system using a non-thermic cutting rod |
| CN2865976Y (en) * | 2005-12-21 | 2007-02-07 | 叶煦 | Oxygen arc fusing bar |
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