CN105921913A - Flux core cutting wire for underwater cutting - Google Patents
Flux core cutting wire for underwater cutting Download PDFInfo
- Publication number
- CN105921913A CN105921913A CN201610483436.XA CN201610483436A CN105921913A CN 105921913 A CN105921913 A CN 105921913A CN 201610483436 A CN201610483436 A CN 201610483436A CN 105921913 A CN105921913 A CN 105921913A
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- CN
- China
- Prior art keywords
- cutting
- powder
- thermite
- micron
- cutting wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0211—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in cutting
- B23K35/0216—Rods, electrodes, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0061—Underwater arc welding
Abstract
The invention discloses a flux core cutting wire for underwater cutting. The flux core cutting wire comprises external metal skin and a powdery flux core, wherein the external metal skin is a low-carbon steel strip; the internal flux core comprises 40%-60% of thermite, 30%-50% of dolomite, 5%-10% of potassium carbonate, 0%-2% of rare-earth elements, 0%-5% of potassium feldspar and 0%-5% of lithium fluoride in percentage by mass. The flux core cutting wire has the beneficial effects that underwater metal structures can be cut by virtue of the heat production effect of exothermic components added to the flux core under the action of electric arc heating without additional oxygen supply and gas protection; and the flux core cutting wire has the characteristics of simple manufacturing and high cutting efficiency.
Description
Technical field
The invention belongs to welding and cutting material technical field, the specifically one wet method electric arc under water of metal material
Cutting flux-cored cutting wire.
Background technology
Along with the development of national economy, marine resources development is also into new developing stage, and ocean platform is removed, shipwreck
Salvage and the development of other underwater steel construction engineerings urgent need subsea cutting technology.Although China these several years cutting material under water and
New technology aspect obtains large development, but cutting technique there is also gap with developed country in economy and applicability.At present,
Hot-cut underwater cuts in technology, and the most frequently used in engineering is exactly electric arc-oxygen cutting (cutting bar), but electric arc-oxygen cutting oxygen demand amount is big,
Cutting efficiency is low, limits its application, so needing to develop the imderwater cutting material that novel automatic degree is high.
Patent application CN 102699556 A discloses a kind of imderwater cutting material, uses steel pipe to wrap up many aluminium medicine core welderings
The structure of silk, principle is consistent with electric arc-oxygen cutting, needs oxygen, and frequently change cutting material in cutting process, and efficiency is relatively
Low.
Former Soviet Union patent SU 1358254A1 and domestic patent CN 102554520 B individually discloses a kind of self-shield water
Lower wet type melt pole electrical arc cutting method, develops the most special flux-cored cutting wire, all contains more making in both cutting wire medicine cores
Gas component, can cut carbon steel and low alloy steel effectively.But, this cutting wire needs technological parameter very big, uncomfortable
Cut under deep water conditions；And aoxidize stainless steel inoperative, can only carbon steel and low-alloy steel, limit such and cut
The actual application of silk.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that a kind of composition is reasonable,
Make simple, it is possible to by the calorigenic action of the exothermicity component added in medicine core, it is not necessary to extra oxygen supply and the water of gas shield
Lower cutting medication core cutting wire.
The present invention solves above-mentioned technical problem and be the technical scheme is that a kind of imderwater cutting flux-cored cutting wire, including
Outer layer metal skin and internal medicine core, it is characterised in that: described outer layer metal skin is mild-carbon steel strip, and described internal medicine core is by aluminothermy
Agent, dolomite, potassium carbonate, rare earth element, potassium feldspar and lithium fluoride composition, the mass percent of each constituent is: thermite
40-60%, dolomite 30-50%, potassium carbonate 5-10%, rare earth element 0-2%, potassium feldspar 0-5%, lithium fluoride 0-5%.
Thermite of the present invention is made up of micron order thermite and nanometer aluminum thermit powder, the two quality in medicine core
Percentage is respectively micron order thermite 20-60%, nanometer aluminum thermit powder 0-30%.Nano aluminum thermit powder is nanometer aluminium powder and nano oxygen
Changing the composition of copper powder, 1:2.5 carries out proportioning by mass percentage；Micron thermite is micron aluminium powder and micron cupric oxide powder
Constituent, carries out proportioning according to mass percent 1:2.5.
Mild-carbon steel strip used by the present invention is the SPCC steel band of soft state, bandwidth 8mm, and thickness is 0.5mm.This steel band processability
Can be good, the filling rate of medicinal powder is high.
Dolomite of the present invention and potassium feldspar particle diameter are 150-180 μm, and lithium fluoride and potassium carbonate particle diameter are 38-45 μ
M, rare earth element particle diameter is 40 μm, and micron aluminium powder particle diameter is 100-150 μm, and micron cupric oxide particle diameter is 45 μm, nano aluminum powder
Footpath is 50nm, and nano oxidized copper powder size is 40nm.
Advantage and the feature of the present invention are: the flux-cored cutting wire of the present invention, use SPCC mild steel metal sheath.In medicine core
Containing a large amount of heat production components, in medicine core in addition to containing micron order thermite, medicinal powder adds more nano aluminum thermit powder, rely on
The carrying out of the feature aggravation reaction that nano particle specific surface area is big, promotes electric arc cutting process further.Cutting process of the present invention
Carry out under chemical heat and arc heat act on jointly, can effectively reduce cutting current size, reduce cutting power supply special
The requirement of property.Additionally, the potassium feldspar added in medicinal powder and potassium carbonate etc. can make cutting process stable, it is achieved metal under water is tied
The stable cutting of structure.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
One imderwater cutting flux-cored cutting wire of the present invention, including outer layer metal skin and internal medicine core, described outer layer metal skin
For mild-carbon steel strip, described internal medicine core is made up of thermite, dolomite, potassium carbonate, rare earth element, potassium feldspar and lithium fluoride, respectively
The mass percent of constituent is: thermite 40-60%, dolomite 30-50%, potassium carbonate 5-10%, rare earth element 0-2%, potassium
Feldspar 0-5%, lithium fluoride 0-5%.Thermite of the present invention is made up of micron order thermite and nanometer aluminum thermit powder, the two
Mass percent in medicine core is respectively micron order thermite 20-60%, nanometer aluminum thermit powder 0-30%.Nano aluminum thermit powder is nanometer
Aluminium powder and the composition of nano oxidized copper powder, 1:2.5 carries out proportioning by mass percentage；Micron thermite is micron aluminium powder and micro-
The constituent of rice cupric oxide powder, carries out proportioning according to mass percent 1:2.5.
Mild-carbon steel strip used by the present invention is the SPCC steel band of soft state, bandwidth 8mm, and thickness is 0.5mm.This steel band processability
Can be good, the filling rate of medicinal powder is high.
Dolomite of the present invention and potassium feldspar particle diameter are 150-180 μm, and lithium fluoride and potassium carbonate particle diameter are 38-45 μ
M, rare earth element particle diameter is 40 μm, and micron aluminium powder particle diameter is 100-150 μm, and micron cupric oxide particle diameter is 45 μm, nano aluminum powder
Footpath is 50nm, and nano oxidized copper powder size is 40nm.
The preparation method of the flux-cored cutting wire of the present invention is, selects soft state SPCC mild-carbon steel strip, bandwidth 8mm, and thickness is
0.5mm.Be made by drawing machine, flux-cored cutting wire cross section in ' O ' shape, cutting wire diameter 2.0mm.
In the chemical composition of above-mentioned internal medicine core, content and the mechanism of action of each composition are as follows:
In the present invention, thermite is the composition that content is more, is made up of micron order thermite and nanometer aluminum thermit powder, and they are at electricity
Reacting under the hot high temperature action of arc, release more heat, assistant electric arc is by metal molten to be cut；Nanometer aluminum thermit powder is
Utilizing nanometer aluminium powder and nano oxidized copper powder, the method compound by ultrasonic disperse prepares, and relies on nano aluminum thermit reaction speed
Hurry up, the feature that energy release rate is high, promote cutting process, but nano aluminum thermit powder content can not be the highest, otherwise can make medicine core stream
Dynamic property is deteriorated, and affects flux-cored wire manufacture craft.In the present invention, micron order thermite addition is 20-60%, nanoscale aluminothermy
Addition 0-30% of agent.
The dolomite added in the present invention acts primarily as gas making effect, and during imderwater cutting, the gas of dolomite release plays guarantor
Protect scarfing, reduce the effect of dross amount, and increase electric arc under water and endure power and penetration power.In the present invention, the addition of dolomite is
30-50%。
Rare earth element, potassium carbonate, lithium fluoride and the potassium feldspar added in the present invention, Main Function stablizes electric arc, and increase is cut
Cutting the long arc stbility of electric arc, making imderwater cutting easy arc striking, rare earth elements addition of the present invention is 0-2%, and potassium carbonate adds
Amount is 5-10%, and lithium fluoride addition is 0-5%, and potassium feldspar addition is 0-5%.
Table 1 is chemical composition and the composition content of internal medicine core in various embodiments of the present invention.
The medicine core component of embodiment 1 prepares flux-cored cutting wire, under the conditions of cutting current 350-380A, voltage about 40V, right
12mm thickness Q235 steel plate carries out imderwater cutting, can obtain the preferable scarfing of quality.
The medicine core component of embodiment 2 prepares flux-cored cutting wire, under the conditions of cutting current 300-320A, voltage about 40, right
12mm thickness Q235 steel plate carries out imderwater cutting, obtains the preferable scarfing of quality.
The medicine core component of embodiment 3 prepares flux-cored cutting wire, under the conditions of cutting current 400-430A, voltage about 45V, right
16mm thickness Q235 steel carries out imderwater cutting, can obtain scarfing.
The medicine core component of embodiment 4 prepares flux-cored cutting wire, under the conditions of cutting current 300-340A, voltage about 30V, right
8mm thickness Q235 steel carries out imderwater cutting, obtains the preferable scarfing of quality.
The medicine core component of embodiment 5 prepares flux-cored cutting wire, under the conditions of cutting current 380-410A, voltage about 40V, right
12mm thickness Q235 steel carries out imderwater cutting, obtains the preferable scarfing of quality.
Claims (4)
1. an imderwater cutting flux-cored cutting wire, including outer layer metal skin and internal medicine core, it is characterised in that: described outer layer metal
Skin is mild-carbon steel strip, and described internal medicine core is made up of thermite, dolomite, potassium carbonate, rare earth element, potassium feldspar, lithium fluoride, respectively
The mass percent of constituent is: thermite 40-60%, dolomite 30-50%, potassium carbonate 5-10%, rare earth element 0-2%, potassium
Feldspar 0-5%, lithium fluoride 0-5%.
Imderwater cutting flux-cored cutting wire the most according to claim 1, it is characterised in that: described outer layer metal skin is soft state
SPCC mild-carbon steel strip, its bandwidth 8mm, thickness is 0.5mm.
Imderwater cutting flux-cored cutting wire the most according to claim 1, it is characterised in that: described thermite is by micron order aluminium
Thermit powder and nanometer aluminum thermit powder composition, micron order thermite mass percent in internal medicine core is 20-60%, nanometer aluminum
Thermit powder mass percent in internal medicine core is 0-30%；Nano aluminum thermit powder is made up of nanometer aluminium powder and nano oxidized copper powder, presses
Mass percent 1:2.5 carries out proportioning；Micron thermite is made up of, according to mass percent micron aluminium powder and micron cupric oxide powder
1:2.5 carries out proportioning.
Imderwater cutting flux-cored cutting wire the most according to claim 3, it is characterised in that: described dolomite and potassium feldspar particle diameter
Being 38-45 μm for 150-180 μm, lithium fluoride and potassium carbonate particle diameter, rare earth element particle diameter is 40 μm, and micron aluminium powder particle diameter is
100-150 μm, micron cupric oxide particle diameter is 45 μm, and nanometer aluminium powder particle diameter is 50nm, and nano oxidized copper powder size is 40nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483436.XA CN105921913A (en) | 2016-06-28 | 2016-06-28 | Flux core cutting wire for underwater cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483436.XA CN105921913A (en) | 2016-06-28 | 2016-06-28 | Flux core cutting wire for underwater cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105921913A true CN105921913A (en) | 2016-09-07 |
Family
ID=56829651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483436.XA Pending CN105921913A (en) | 2016-06-28 | 2016-06-28 | Flux core cutting wire for underwater cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105921913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213760A (en) * | 2018-01-23 | 2018-06-29 | 刘希福 | Oxygen imderwater cutting item is exempted from a kind of manual metal-arc welding |
| CN108326466A (en) * | 2018-02-07 | 2018-07-27 | 郑州机械研究所有限公司 | A kind of highly conductive aluminothermy welding powder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069407A (en) * | 1975-12-10 | 1978-01-17 | Brower Jerome S | Underwater cutting rod |
| SU1358254A1 (en) * | 1986-03-28 | 1995-02-09 | Институт Электросварки Им.Е.О.Патона | Flux-cored wire for underwater cutting |
| CN101444876A (en) * | 2008-11-20 | 2009-06-03 | 清华大学 | Manual thermit welding electrode and preparation and using methods thereof |
| CN102049630A (en) * | 2010-11-09 | 2011-05-11 | 衣衍亮 | Material for fast hand cutting and application thereof |
| CN201848628U (en) * | 2010-11-09 | 2011-06-01 | 衣衍亮 | Manual quick cutting system |
| CN102699544A (en) * | 2012-01-12 | 2012-10-03 | 柳吉兰 | Cutting system accomplishing cutting by using underwater manual rapid cutting material |
| CN104722960A (en) * | 2015-03-24 | 2015-06-24 | 江苏科技大学 | High-efficiency heat production flux-cored cutting wire for underwater wet-type arc cutting and preparation method thereof |
| CN104858565A (en) * | 2015-06-03 | 2015-08-26 | 哈尔滨工业大学（威海） | Chemical core cutting wire for underwater wet method electric arc cutting |
-
2016
- 2016-06-28 CN CN201610483436.XA patent/CN105921913A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069407A (en) * | 1975-12-10 | 1978-01-17 | Brower Jerome S | Underwater cutting rod |
| SU1358254A1 (en) * | 1986-03-28 | 1995-02-09 | Институт Электросварки Им.Е.О.Патона | Flux-cored wire for underwater cutting |
| CN101444876A (en) * | 2008-11-20 | 2009-06-03 | 清华大学 | Manual thermit welding electrode and preparation and using methods thereof |
| CN102049630A (en) * | 2010-11-09 | 2011-05-11 | 衣衍亮 | Material for fast hand cutting and application thereof |
| CN201848628U (en) * | 2010-11-09 | 2011-06-01 | 衣衍亮 | Manual quick cutting system |
| CN102699544A (en) * | 2012-01-12 | 2012-10-03 | 柳吉兰 | Cutting system accomplishing cutting by using underwater manual rapid cutting material |
| CN104722960A (en) * | 2015-03-24 | 2015-06-24 | 江苏科技大学 | High-efficiency heat production flux-cored cutting wire for underwater wet-type arc cutting and preparation method thereof |
| CN104858565A (en) * | 2015-06-03 | 2015-08-26 | 哈尔滨工业大学（威海） | Chemical core cutting wire for underwater wet method electric arc cutting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213760A (en) * | 2018-01-23 | 2018-06-29 | 刘希福 | Oxygen imderwater cutting item is exempted from a kind of manual metal-arc welding |
| CN108326466A (en) * | 2018-02-07 | 2018-07-27 | 郑州机械研究所有限公司 | A kind of highly conductive aluminothermy welding powder |
| CN108326466B (en) * | 2018-02-07 | 2020-02-14 | 郑州机械研究所有限公司 | High-conductivity aluminum hot welding powder |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
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| RJ01 | Rejection of invention patent application after publication |