CN101062537B - Self-protective full-position high ductility flux-cored wire - Google Patents
Self-protective full-position high ductility flux-cored wire Download PDFInfo
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- CN101062537B CN101062537B CN2006101067146A CN200610106714A CN101062537B CN 101062537 B CN101062537 B CN 101062537B CN 2006101067146 A CN2006101067146 A CN 2006101067146A CN 200610106714 A CN200610106714 A CN 200610106714A CN 101062537 B CN101062537 B CN 101062537B
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Abstract
The self protective overall position high flexible drug core weld wire uses common SPCC-SD cold forging low carbon steel belt as the original material with drug core transitional alloy, featuring in the formulation of carbonas 30-40%, fluoride 22-35%, Al2O3 4-5%, aluminum-magnesium alloy 10-20%, metal powder 5-10%, manganese alloy 4-12% and nickel 3-4%. It has semi automatic welding in continuouswelding wire delivery, free from air protection, strong in wind resistance, high in productivity, low in comprehensive cost, easy for welding, big in application shares, with good process operation and dynamic features.
Description
(1) technical field:
The invention belongs to field of welding material, the particularly high-strength line-pipe welding of steel.Self-protecting full position high ductility flux-cored wire of the present invention is primarily aimed at the welding of long distance pipeline,
(2) background technology:
Along with the development of pipeline steel, press for and use easy construction, mechanical property is good, efficient is high, technological operation is easy to a kind of wlding to high strength, high tenacity.At present, U.S. Lincoln only arranged abroad, close minority wlding factories such as Bert and develop the welding material of this type of performance, but exist the price comparison costliness, and the supply progress is difficult to problems such as assurance, domestic still untapped at present this series products that goes out.
(3) summary of the invention:
The object of the invention is to design a kind of self-protecting full position high ductility flux-cored wire, and it makes the mechanical property of wlding and processing performance can satisfy welding requirements, can be used for the welding of high-strength line-pipe with steel.
Technical scheme of the present invention: a kind of self-protecting full position high ductility flux-cored wire; it comprises that adopting common SPCC-SD cold-rolled low carbon steel steel band is raw material; adopt medicine core transition alloy mode, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate, two kinds of fluorides, alundum (Al Al
2O
3, almag, metal iron powder, manganese metal alloy, metallic nickel constitute, its weight proportion is: calcium carbonate CaCO
330-40%, two kinds of fluoride 22-35%, alundum (Al Al
2O
34-5%, almag 10-20%, metal iron powder 5-10%, manganese metal alloy 4-12%, metallic nickel 3-4%.
Above-mentioned said a kind of self-protecting full position high ductility flux-cored wire is characterized in that said two kinds of fluorides get calcirm-fluoride CaF
2, barium fluoride BaF
2
Formulation analysis of the present invention:
In the present invention, calcium carbonate CaCO
3Be the main constituent of medicine core, it mainly acts on is stabilising arc, slag making and gas making, and its content influence is to the manufacturability of self-protection flux-cored wire, and content is too low, is lower than 30%, is difficult for forming short slag, and opposition welding downwards is unfavorable; Content is too high, is higher than 40%, then easily produces the welding pore.So in the present invention, calcium carbonate CaCO
3Content is at 30-40%.
CaF in the fluoride
2With BaF
2Also be the main component of medicine core of the present invention, CaF
2Have strong shoddye effect, its content is too low as be lower than 12%, then the shoddye scarce capacity; Surpass 15% as content, the self-protection flux-cored wire arc stability descends.In the present invention, CaF
2Content be 12-15%; BaF
2Mainly when welding, can support very short electric arc; this has two advantages: the one, when all-position welding; arc energy and welding wire burning velocity under a certain given welding current, have been reduced; make the operator can control the molten bath better; the 2nd, arc voltage is low, electric arc is short; the nitrogen that molten drop absorbs when so just having reduced the self-protection flux-cored wire welding, in the present invention, BaF
2Content is 10-20%.
Alundum (Al Al
2O
3In the present invention, it mainly acts on is to regulate slag fusing point and setting temperature, and its content is at 4-5%.
Almag is a kind of material commonly used in the self-protection flux-cored wire, and aluminium wherein, magnesium belong to strong deoxidier and denitrifier, as are less than at 10% o'clock, then easily produces the welding pore, as is higher than 20%, and impact flexibility is descended significantly, and its content is at 10-20%.
Metal iron powder is mainly used in the adjusting manufacturability, guarantees arc stability, and can improve welding efficiency, and content is 5-10% in the present invention.
The manganese metal alloy uses as deoxidier and alloying constituent, and its content is 4-12% in the present invention.
Metallic nickel helps improving the mechanical property of weld seam, particularly can improve low-temperature flexibility, and in the present invention, for guaranteeing welding performance, its content is at 3-4%, and too high levels then increases manufacturing cost.
Using method of the present invention: the handling characteristics of self-protecting full position high ductility flux-cored wire is to carry out full position down hill welding to connect on pipeline; experience welding positions such as downhand welding, vertical position welding, overhead welding during welding respectively; operating characteristics for welding wire requires high; mainly be to require to keep arc stability in each position; do not drop down slag, do not flow molten iron, appearance of weld is good, spatter is little, anti-pore ability is strong; for this reason; molten drop will be the spurting transition; it is big that the electric arc penetration power is wanted, and fusion temperature, the setting temperature of slag of welding medicine core, surface tension all should be suitable.Simultaneously, adapt to, guaranteed the intensity, toughness, plasticity of weld seam etc. by medicine core transition alloy elements.
Superiority of the present invention is: 1, have can semiautomatic welding for self-protecting full position high ductility flux-cored wire, has continuous wire feed, without gas shield, wind loading rating is stronger, the production efficiency height, integrated cost is low, welding quality good, be easy to advantages such as welder's operation, makes self-protection flux-cored wire occupy sizable using portion in the required wlding of pipeline; 2, have good technological operation performance and mechanical property, arc stability, it is little to splash, good operability, it is attractive in appearance to be shaped.
(4) specific embodiment:
Embodiment 1:(%) a kind of self-protecting full position high ductility flux-cored wire; it comprises that adopting common commercially available SPCC-SD cold-rolled low carbon steel steel band is raw material; adopt medicine core transition alloy mode; use general flux-cored wire to make production technology and make this product, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
340%, calcirm-fluoride CaF
213%, barium fluoride BaF
216%, alundum (Al Al
2O
35%, almag 13%, metal iron powder 5%, manganese metal alloy 4%, metallic nickel 4%.
Embodiment 2:(%) a kind of self-protecting full position high ductility flux-cored wire; it comprises that adopting common commercially available SPCC-SD cold-rolled low carbon steel steel band is raw material; adopt medicine core transition alloy mode; use general flux-cored wire to make production technology and make this product, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
330%, calcirm-fluoride CaF
215%, barium fluoride BaF
210%, alundum (Al Al
2O
34%, almag 20%, metal iron powder 8%, manganese metal alloy 10%, metallic nickel 3%.
Embodiment 3:(%) a kind of self-protecting full position high ductility flux-cored wire; it comprises that adopting common commercially available SPCC-SD cold-rolled low carbon steel steel band is raw material; adopt medicine core transition alloy mode; use general flux-cored wire to make production technology and make this product, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
336%, calcirm-fluoride CaF
212%, barium fluoride BaF
220%, alundum (Al Al
2O
34%, almag 10%, metal iron powder 10%, manganese metal alloy 5%, metallic nickel 3%.
The foregoing description is summarized as table 1, and the mechanical property of embodiment sees Table 2.
Table 1:
The mechanical property of table 2: embodiment
Claims (5)
1. self-protecting full position high ductility flux-cored wire, it comprises that adopting common SPCC-SD cold-rolled low carbon steel steel band is raw material, adopts medicine core transition alloy mode, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate, two kinds of fluorides, alundum (Al Al
2O
3, almag, metal iron powder, manganese metal alloy, metallic nickel constitute, its weight proportion is: calcium carbonate CaCO
330-40%, two kinds of fluoride 22-35%, alundum (Al Al
2O
34-5%, almag 10-20%, metal iron powder 5-10%, manganese metal alloy 4-12%, metallic nickel 3-4%.
2. according to the said a kind of self-protecting full position high ductility flux-cored wire of claim 1, it is characterized in that said two kinds of fluorides get calcirm-fluoride CaF
2, barium fluoride BaF
2
3. according to claim 1 or 2 said a kind of self-protecting full position high ductility flux-cored wires, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
340%, calcirm-fluoride CaF
213%, barium fluoride BaF
216%, alundum (Al Al
2O
35%, metallic nickel 4%, almag 13%, metal iron powder 5%, manganese metal alloy 4%.
4. according to claim 1 or 2 said a kind of self-protecting full position high ductility flux-cored wires, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
330%, calcirm-fluoride CaF
215%, barium fluoride BaF
210%, alundum (Al Al
2O
34%, metallic nickel 3%, almag 20%, metal iron powder 8%, manganese metal alloy 10%.
5. according to claim 1 or 2 said a kind of self-protecting full position high ductility flux-cored wires, the prescription that it is characterized in that welding wire medicine core is by calcium carbonate CaCO
336%, calcirm-fluoride CaF
212%, barium fluoride BaF
220%, alundum (Al Al
2O
34%, metallic nickel 3%, almag 10%, metal iron powder 10%, manganese metal alloy 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101067146A CN101062537B (en) | 2006-04-26 | 2006-07-25 | Self-protective full-position high ductility flux-cored wire |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610013541 | 2006-04-26 | ||
| CN200610013541.3 | 2006-04-26 | ||
| CN2006101067146A CN101062537B (en) | 2006-04-26 | 2006-07-25 | Self-protective full-position high ductility flux-cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101062537A CN101062537A (en) | 2007-10-31 |
| CN101062537B true CN101062537B (en) | 2010-12-15 |
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ID=38963937
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101067146A Active CN101062537B (en) | 2006-04-26 | 2006-07-25 | Self-protective full-position high ductility flux-cored wire |
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| CN (1) | CN101062537B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913038A (en) * | 2010-08-25 | 2010-12-15 | 天津市永昌焊丝有限公司 | Self-shielded flux-cored wire for steel rail narrow gap arc welding |
| CN101913032A (en) * | 2010-08-25 | 2010-12-15 | 天津市永昌焊丝有限公司 | Special self-protection flux-cored wire for resurfacing rail |
| CN102029482B (en) * | 2010-11-19 | 2012-10-03 | 天津市永昌焊丝有限公司 | Gas-shielded overlaying flux cored soldering wire for repairing hot-forging mould |
| CN102554495B (en) * | 2010-12-20 | 2014-09-10 | 昆山京群焊材科技有限公司 | High-ductility electrogas welding self-shielded flux-cored wire |
| CN102179640B (en) * | 2011-04-26 | 2013-03-13 | 武汉铁锚焊接材料股份有限公司 | High-strength and high-toughness metal powder flux-cored wire |
| CN102642103B (en) * | 2012-04-13 | 2014-10-01 | 武汉铁锚焊接材料股份有限公司 | Metal powder core type flux-cored wire for welding chromium-molybdenum steel, preparation and application of metal powder core type flux-cored wire |
| CN103170756A (en) * | 2013-04-12 | 2013-06-26 | 河北翼辰实业集团有限公司 | Self-protection flux-cored wire for downward welding and horizontal position welding |
| CN103612034A (en) * | 2013-12-05 | 2014-03-05 | 天津大桥焊丝有限公司 | High-toughness self-protection flux-cored welding wire used for X70 pipeline steel welding |
| CN104741824B (en) * | 2015-03-09 | 2017-01-25 | 西安理工大学 | Flux-cored wire for welding D406A steel and manufacturing method thereof |
| CN105750762B (en) * | 2016-05-09 | 2018-05-01 | 郑州华威焊业有限公司 | A kind of all-position welding alkaline flux-cored wire |
| CN110900034B (en) * | 2019-12-17 | 2021-08-24 | 天津市永昌焊丝有限公司 | All-position alkaline flux-cored wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149063A (en) * | 1977-03-28 | 1979-04-10 | The International Nickel Company, Inc. | Flux cored wire for welding Ni-Cr-Fe alloys |
| CN1068270C (en) * | 1999-01-12 | 2001-07-11 | 冶金工业部钢铁研究总院 | Gas shield cored electrode for high ductility all position welding |
| CN1745957A (en) * | 2005-10-17 | 2006-03-15 | 天津市金桥焊材集团有限公司 | Low-hydrogen longitudinal down welding rod |
-
2006
- 2006-07-25 CN CN2006101067146A patent/CN101062537B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149063A (en) * | 1977-03-28 | 1979-04-10 | The International Nickel Company, Inc. | Flux cored wire for welding Ni-Cr-Fe alloys |
| CN1068270C (en) * | 1999-01-12 | 2001-07-11 | 冶金工业部钢铁研究总院 | Gas shield cored electrode for high ductility all position welding |
| CN1745957A (en) * | 2005-10-17 | 2006-03-15 | 天津市金桥焊材集团有限公司 | Low-hydrogen longitudinal down welding rod |
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| Publication number | Publication date |
|---|---|
| CN101062537A (en) | 2007-10-31 |
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Addressee: Wang Lige Document name: Notification of Passing Examination on Formalities |
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Assignee: Tianjin Yongchang Welding Wires Co., Ltd. Assignor: Jinqiao Welding Material Group Co., Ltd., Tianjin Contract record no.: 2011120000104 Denomination of invention: Self-protective full-position high ductility flux-cored wire Granted publication date: 20101215 License type: Exclusive License Open date: 20071031 Record date: 20110729 |
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Address after: 300457 No. 1 Liujing Road, Dongli Development Zone, Dongli District, Tianjin Patentee after: Jinqiao Welding Material Group Co., Ltd., Tianjin Address before: 300457 Tianjin Development Zone Tiedong Road Storage Area (No. 1 Weishan Road, Tianjin Development Zone) Patentee before: Jinqiao Welding Material Group Co., Ltd., Tianjin |
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Address after: 300300 No. 1 Liujing Road, Dongli Development Zone, Dongli District, Tianjin Patentee after: Tianjin Jinqiao Welding Materials Group Co., Ltd Address before: 300457 No.1, Liujing Road, Dongli Development Zone, Dongli District, Tianjin Patentee before: TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP Co.,Ltd. |
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