CN1326838A - Fluoric alkali high toughness sintering solder - Google Patents
Fluoric alkali high toughness sintering solder Download PDFInfo
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- CN1326838A CN1326838A CN 01128710 CN01128710A CN1326838A CN 1326838 A CN1326838 A CN 1326838A CN 01128710 CN01128710 CN 01128710 CN 01128710 A CN01128710 A CN 01128710A CN 1326838 A CN1326838 A CN 1326838A
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- welding
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- weld
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Abstract
The solder consists of MgO 26-32 wt%, CaF2 19-25 wt%, Al2O3 14.5-22 wt%, SiO2 15-22 wt%, CaO 3.5-10 wt%, MnO less than 5 wt%, Fe Less than 3 wt%, K2O+Na2O 2-3 wt%, S less than 0.04 and P less than 0.05. When the solder is used in welding, the solder can result in resonable melting point, viscosity and surface tension, stable welding electric arc, easy-to-eliminate slag, smooth welded seam and high outer welded seam quality. It has reasonable alkali welding slag system, and when matched with H08C welding wire to weld X-series steel pipes in speed of 1.0-1.5 m/min, it results in a Charpy ballistic work CVN(-20 deg.C)=157-243 J, and a low temperature brittleness conversion temperature FATT50 lower than -40 deg.c. The solder may be matched with various welding wires to weld various low alloy steel.
Description
Technical field
The present invention relates to a kind of fluoric alkali high toughness sintering solder, be mainly used in the oil natural gas and carry the submerged arc welding of using pipeline steel tube.
Background technology
Solder flux is the material that is used for the automatic submerged-arc welding.Sintered flux have can produce continuously, pollution-free, basicity is high, adapt to the welding of higher-strength, and can obtain advantages such as higher plasticity and toughness, be widely used in welding such as pressure vessel, metal structure, bridge, shipbuilding, vehicle and oil natural gas conveyance conduit and make.The low high silicon of basicity, manganese slag system sintered flux, it is easy obtaining good process performance weld seam, but weld seam impact toughness is not high.It is easy that the sintered flux of high basicity slag system obtains the high tenacity weld seam, but it is stable that its processing performance of sintered flux of high basicity slag system is difficult for, when particularly welded tube is produced, because the high-speed and continuous welding, and welding bead is in the moulding of curved surface position dynamic, so its processing performance just seems more difficult stable.
Summary of the invention
The technical problem that the present invention solves: the smelting of pipe line steel and supporting welding wire over past ten years, technology such as rolling have all reached higher level; influence the steel degree of purity of toughness index and the interpolation of micro-useful alloying element and be tending towards reasonable; so solder flux should be paid attention to reducing oxygen content and oxide impurity on protection weld seam pure to the main contribution of pipe line steel welding seam toughness.Because the toughness index of weld seam is not only relevant with impurity content (as S, P etc.), and direct relation is arranged with oxygen content and field trash in the weld seam.Manage to reduce the objectionable impurities that raw material brings, and restriction solder flux objectionable impurities and oxide transition and delay in weld metal in the metallurgical reaction process, thereby the low-temperature impact toughness that improves weld seam under the prerequisite that guarantees the weld seam processing performance is a main thought of the present invention.
Technical solution of the present invention: as adjusting the main slag former of slag basicity, guarantee the degree of purity of weld metal with MgO; Pass through SiO
2An amount of adding of various ways improves viscosity, surface tension and the fusing point etc. of slag, thereby improves the forming property of weld seam and the deslag performance of skull; CaF
2Adding, the fluorine gas that produces during welding reduces the hydrogen dividing potential drop in the arc atmosphere, the carbonate effect that has replaced common solder flux to adopt, and suppress oxygen reduction in the slag to the transition of deposite metal; With Al
2O
3Adjust agent as viscosity coefficient of dross, guarantee the face of weld quality; Because manganese ore has S, P content height, the present invention has avoided direct employing manganese ore, and calling in The addition of C aO further increases the effect that weld seam takes off S, P.
The present invention is made of the composition of following weight percentage:
MgO?26-32，CaF
2?19-25，Al
2O
3?14.5-22，SiO
2?15-22，CaO?3.5-10，MnO＜5，FeO＜3，K
2O＋Na
2O?2-3，S＜0.04，P＜0.05。
Advantage that the present invention compared with prior art has and effect:
1, the present invention has reasonably allocated the ratio of various breezes, makes its fusing point, viscosity, surface tension in welding process reach the comparatively reasonably coordinating and unifying, the welding arc stability, postwelding is easy to take off slag, and the weld edge transition is steady, smooth surface, and the weld appearance forming quality is good.
2, reasonable compatibility basic slag system of the present invention, with H08C (H08MnMoTiB Baoji is welding material factory's production admittedly forever) welding wire coupling welding X series pipe line steel steel pipe, speed of welding is under 1.0-1.5m/min condition, its weld seam low-temperature impact toughness, Charpy-V impact power CVN (20 ℃)=157～243J, black brittleness transition temperature FATT
50≤-40 ℃, weld hardness HV10=212～230, weld strength σ
b〉=590Mpa is applicable to West-East National Gas Transmission Project.
3, the present invention can be mated with multiple welding wire, can weld multiple low-alloy steel, and the weld seam low-temperature impact toughness is higher, and welding performance is good under height weldering speed.
The specific embodiment
Embodiment one (solder flux lot number 00067):
(1) component (wt%): MgO 31.08, CaF
224.35, Al
2O
315.36, SiO
215.44 CaO 6.13, MnO 3.02, and FeO 1.88, K
2O+Na
2O 2.7, and S 0.008, and P 0.032.
(2), preparation method: after the needed raw material reinspection, carry out operations such as coarse crushing, fine crushing, levigation, be processed into the powdery of various criterion granularity, carry out proportioning according to standard formula after sieving and weigh, deliver to dried agitator then and do stirring.Powder after dried the stirring is delivered to wet agitator, adds about 20% waterglass bonding agent, is stirred well to evenly again.This moment, material was a wet feed, delivered to comminutor and carried out granulation, and the granular flux of producing enters drying oven after heated-air drying, its moisture of oven dry under 150 ℃ of-200 ℃ of temperature.Directly sieve after coming out of the stove, the semi-finished product that filter out in the standard particle size scope enter sintering furnace again.Semi-finished product are come out of the stove after the time about 1 hour at the sintering furnace sintering under 800 ℃ of-850 ℃ of temperature, and through checking, sieve, pack, putting in storage, the solder flux production process is finished.
(3), deposited metal result of the test (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is that 196J (sees annex one for details: SJ101 sintered flux test report).
(4), the application on X70 grade of steel steel pipe (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is 180J (see for details annex two: X70 grade of steel spiral seam welded tube test monitoring and appraisal report).
Embodiment two (solder flux lot number 00731):
(1) component (wt%): MgO 28.12, CaF
222.24, Al
2O
320.05, SiO
217.72 CaO 5.18, MnO 1.6, and FeO 2.46, K
2O+Na
2O 2.6, and S 0.004, and P 0.026.
(2), preparation method: identical with embodiment one.
(3), deposited metal result of the test (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is 170J (seeing annex three: SJ101-G sintered flux test report for details).
(4), the application on X70 grade of steel steel pipe (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is 209J (see annex four for details: puckery blue thread test section with X70 grade of steel spiral seam welded tube test monitoring and appraisal report).
Embodiment three (solder flux lot number 1031):
(1) component (wt%): MgO 26.55, CaF
219.38, Al
2O
318.14, SiO
220.33 CaO 8.92, MnO 2.3, and FeO 2.05, K
2O+Na
2O 2.3, and S 0.004, and P 0.026.
(2) preparation method: identical with embodiment one.
(3) deposited metal result of the test (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is that 177.2J (sees annex five for details: Baoji Petroleum Steel-pipe Plant's impact ductility test report).
(4) application on X70 grade of steel steel pipe (with H08C welding wire coupling): the mean value of welding seam toughness-20 ℃ Charpy-V impact power CVN is 166.7J (see annex six for details: welded still pipe research institute of natural gas parent company of CNPC reports).
Claims (1)
1, a kind of fluoric alkali high toughness sintering solder is characterized in that this solder flux is made of the composition of following weight percentage:
MgO?26-32，CaF
2?19-25，Al
2O
3?14.5-22，SiO
2?15-22，CaO?3.5-10，MnO＜5，FeO＜3，K
2O＋Na
2O2-3，S＜0.04，P＜0.05。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128710 CN1228168C (en) | 2001-07-04 | 2001-07-04 | Fluoric alkali high toughness sintering solder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128710 CN1228168C (en) | 2001-07-04 | 2001-07-04 | Fluoric alkali high toughness sintering solder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1326838A true CN1326838A (en) | 2001-12-19 |
| CN1228168C CN1228168C (en) | 2005-11-23 |
Family
ID=4668548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01128710 Expired - Fee Related CN1228168C (en) | 2001-07-04 | 2001-07-04 | Fluoric alkali high toughness sintering solder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1228168C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444877B (en) * | 2008-10-08 | 2011-04-20 | 四川大西洋焊接材料股份有限公司 | Welding fluid for hidden arc welding of X80-grade steel oil and gas transmission pipe, and its production method |
| CN101564804B (en) * | 2009-06-05 | 2011-04-20 | 中国船舶重工集团公司第七二五研究所 | Hard surfacing sintered flux and manufacturing method thereof |
| CN102218623A (en) * | 2011-05-26 | 2011-10-19 | 四川大西洋焊接材料股份有限公司 | Welding flux for X100 pipe line steel submerged arc-welding and preparation method thereof |
| CN102642100A (en) * | 2012-04-12 | 2012-08-22 | 西安理工大学 | Submerged arc sintered flux for X100 pipeline steel and preparation method of submerged arc sintered flux |
| CN102085603B (en) * | 2009-12-02 | 2012-11-28 | 中冶焊接科技有限公司 | Fluorine-base type sintered flux used for reducing sulfur and phosphorus contents of welding joint and used in submerged arc hardfacing |
| CN102814602A (en) * | 2012-09-07 | 2012-12-12 | 蒋才银 | Silicon-free high-toughness corrosion-resistant fused flux and production method thereof |
| CN103008918A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire |
| CN103056558A (en) * | 2013-01-22 | 2013-04-24 | 四川大西洋焊接材料股份有限公司 | Submerged-arc flux for low-temperature impact of Cr-Mo heat-resistant steel and narrow-gap submerged-arc welding and preparation method thereof |
| CN103386557A (en) * | 2013-07-06 | 2013-11-13 | 宝鸡石油钢管有限责任公司 | Sintered flux suitable for X70MS anti-corrosion pipeline steel tube submerged arc welding |
| CN103737192A (en) * | 2014-01-06 | 2014-04-23 | 四川大西洋焊接材料股份有限公司 | Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method |
| CN104096987A (en) * | 2014-07-16 | 2014-10-15 | 武汉铁锚焊接材料股份有限公司 | High-basicity and high-tenacity submerged-arc welding flux for oceaneering and preparation method of high-basicity and high-tenacity submerged-arc welding flux |
| CN104175022A (en) * | 2014-08-22 | 2014-12-03 | 首钢总公司 | Sintered flux for high-speed submerged arc welding of pressure steel pipes like pipelines and structural pipes |
| CN107553008A (en) * | 2017-10-30 | 2018-01-09 | 巩义市广大焊业有限责任公司 | A kind of X70 pipe line steels vertical masonry joint solder flux used for submerged arc welding and preparation method thereof |
| CN108581274A (en) * | 2018-04-27 | 2018-09-28 | 西峡县西保冶金材料有限公司 | A kind of wind tower low hydrogen, high toughness sintered flux and preparation method thereof |
| CN108637527A (en) * | 2018-07-27 | 2018-10-12 | 四川西冶新材料股份有限公司 | A kind of Lincoln weld sintered flux and preparation method for 1000MPa high-strength steel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396427C (en) * | 2005-12-20 | 2008-06-25 | 宝鸡石油钢管有限责任公司 | High welding rate, high ductility fluorine alkaline type sintered flux |
-
2001
- 2001-07-04 CN CN 01128710 patent/CN1228168C/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101444877B (en) * | 2008-10-08 | 2011-04-20 | 四川大西洋焊接材料股份有限公司 | Welding fluid for hidden arc welding of X80-grade steel oil and gas transmission pipe, and its production method |
| CN101564804B (en) * | 2009-06-05 | 2011-04-20 | 中国船舶重工集团公司第七二五研究所 | Hard surfacing sintered flux and manufacturing method thereof |
| CN102085603B (en) * | 2009-12-02 | 2012-11-28 | 中冶焊接科技有限公司 | Fluorine-base type sintered flux used for reducing sulfur and phosphorus contents of welding joint and used in submerged arc hardfacing |
| CN102218623A (en) * | 2011-05-26 | 2011-10-19 | 四川大西洋焊接材料股份有限公司 | Welding flux for X100 pipe line steel submerged arc-welding and preparation method thereof |
| CN102642100A (en) * | 2012-04-12 | 2012-08-22 | 西安理工大学 | Submerged arc sintered flux for X100 pipeline steel and preparation method of submerged arc sintered flux |
| CN102814602B (en) * | 2012-09-07 | 2013-06-12 | 蒋才银 | Silicon-free high-toughness corrosion-resistant fused flux and production method thereof |
| CN102814602A (en) * | 2012-09-07 | 2012-12-12 | 蒋才银 | Silicon-free high-toughness corrosion-resistant fused flux and production method thereof |
| CN103008918A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire |
| CN103056558B (en) * | 2013-01-22 | 2015-05-20 | 四川大西洋焊接材料股份有限公司 | Submerged-arc flux for low-temperature impact of Cr-Mo heat-resistant steel and narrow-gap submerged-arc welding and preparation method thereof |
| CN103056558A (en) * | 2013-01-22 | 2013-04-24 | 四川大西洋焊接材料股份有限公司 | Submerged-arc flux for low-temperature impact of Cr-Mo heat-resistant steel and narrow-gap submerged-arc welding and preparation method thereof |
| CN103386557A (en) * | 2013-07-06 | 2013-11-13 | 宝鸡石油钢管有限责任公司 | Sintered flux suitable for X70MS anti-corrosion pipeline steel tube submerged arc welding |
| CN103386557B (en) * | 2013-07-06 | 2016-03-09 | 宝鸡石油钢管有限责任公司 | One is applicable to the anti-corrosion pipeline steel tube of X70MS sintered flux used for submerged arc welding |
| CN103737192A (en) * | 2014-01-06 | 2014-04-23 | 四川大西洋焊接材料股份有限公司 | Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method |
| CN104096987B (en) * | 2014-07-16 | 2017-01-18 | 武汉铁锚焊接材料股份有限公司 | High-basicity and high-tenacity submerged-arc welding flux for oceaneering and preparation method of high-basicity and high-tenacity submerged-arc welding flux |
| CN104096987A (en) * | 2014-07-16 | 2014-10-15 | 武汉铁锚焊接材料股份有限公司 | High-basicity and high-tenacity submerged-arc welding flux for oceaneering and preparation method of high-basicity and high-tenacity submerged-arc welding flux |
| CN104175022A (en) * | 2014-08-22 | 2014-12-03 | 首钢总公司 | Sintered flux for high-speed submerged arc welding of pressure steel pipes like pipelines and structural pipes |
| CN107553008A (en) * | 2017-10-30 | 2018-01-09 | 巩义市广大焊业有限责任公司 | A kind of X70 pipe line steels vertical masonry joint solder flux used for submerged arc welding and preparation method thereof |
| CN108581274A (en) * | 2018-04-27 | 2018-09-28 | 西峡县西保冶金材料有限公司 | A kind of wind tower low hydrogen, high toughness sintered flux and preparation method thereof |
| CN108637527A (en) * | 2018-07-27 | 2018-10-12 | 四川西冶新材料股份有限公司 | A kind of Lincoln weld sintered flux and preparation method for 1000MPa high-strength steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1228168C (en) | 2005-11-23 |
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