CN106271218B - A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel - Google Patents
A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel Download PDFInfo
- Publication number
- CN106271218B CN106271218B CN201610651166.9A CN201610651166A CN106271218B CN 106271218 B CN106271218 B CN 106271218B CN 201610651166 A CN201610651166 A CN 201610651166A CN 106271218 B CN106271218 B CN 106271218B
- Authority
- CN
- China
- Prior art keywords
- parts
- welding
- sintered flux
- ocean engineering
- strength steel
- 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.)
- Active
Links
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
- B23K35/22—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
- B23K35/362—Selection of compositions of fluxes
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention discloses a kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel, belongs to fluorine alkaline type sintered flux, the sintered flux is composed of the following components according to parts by weight: MgO19 ~ 24 part, CaF220-25 parts, Al2O312 ~ 16 parts, SiO24 ~ 8 parts, CaO8 ~ 10 part, BaO2 ~ 4 part, NaF1 ~ 3 part, LiF1-3 parts, ZrO21-2 parts, Fe2O32-3 parts, 0.5~1.5 part of alloy and 14~16 parts of waterglass.Sintered flux craftsmanship disclosed by the invention is good, under wider technological specification, arc stability, de- slag is easy, and welding bead beautiful appearance can both meet the welding of E550 steel plate of the yield strength greater than 550MPa, the welding of E690 steel plate of the yield strength greater than 690MPa can be met again, and diffusible hydrogen is lower.
Description
Technical field
The invention belongs to technical field of welding materials, and in particular to a kind of sintering weldering for the welding of ocean engineering high-strength steel
Agent and preparation method thereof.
Background technique
With the rapid economic development in our country, the demand to petroleum is also increasing, due to China's On shore Oil Development
Fall sharply rapidly, offshore and gas development has become the hot spot of China's energy development.Entered offshore oil from China's upper world's fifties
Since platform drilling field, by semicentennial effort, China has achieved in fields such as drilling at the sea, marine settings manufactures
Biggish progress.It is more demanding to Marine Engineering Steel and wlding matched with its since marine settings working environment is severe.
Currently, the steel plate of yield strength 550MPa rank and 690MPa rank has been realized in production domesticization, but wlding matched with its, it is special
It is not SAW consumable material, is still monopolized by a few countries such as Europe, the United States, days.Currently, the domestic solid welding wire for submerged-arc welding of high-strength steel submerged-arc welding
The either impurity elements such as oxygen, nitrogen level or S, P all little but matched sintered fluxes with import welding wire difference
With there is also larger problems.Be mainly manifested in: (1) with corresponding solid welding wire matching -40 DEG C of ballistic works of deposited metal compared with
It is low and unstable；(2) diffusible hydrogen content is higher, HD, easily there is cold crack in > 5mL/100g, transports to the safety of ocean platform
Row brings biggish harm.So far, the relevant skill of submerged arc welding flux matched to ocean engineering platform high-strength steel both at home and abroad
Art is perfect not enough, a kind of ocean engineering high tenacity low hydrogen type sintered flux and its manufacturing method (application number
201510577473.2), which is mainly used for the welding of 460MPa grades of steel of ocean engineering yield strength, use scope
Limitation, it is not applicable for the steel plate of yield strength 550MPa rank and 690MPa rank, therefore research and develop and use Yu Haiyang work
The sintered flux of journey high-strength steel welding is most important.
Summary of the invention
In order to solve the above technical problems, the present invention provide it is a kind of for ocean engineering high-strength steel welding sintered flux and its
Preparation method, the sintered flux craftsmanship is good, and under wider technological specification, arc stability takes off slag and is easy, welding bead molding beauty
It sees, can not only meet the welding of E550 steel plate of the yield strength greater than 550MPa, but also yield strength can be met greater than 690MPa's
The welding of E690 steel plate, and diffusible hydrogen is lower.
The technical scheme adopted by the invention is that: a kind of sintered flux for the welding of ocean engineering high-strength steel belongs to fluorine
Alkaline type sintered flux, it is composed of the following components according to parts by weight: 19 ~ 24 parts of MgO, CaF220-25 parts, Al2O3 12~16
Part, SiO2 4 ~ 8 parts, CaO8 ~ 10 part, 2 ~ 4 parts of BaO, NaF1 ~ 3 part, 1-3 parts of LiF, ZrO21-2 parts, Fe2O3 2-3 parts, alloy
0.5~1.5 part and 14~16 parts of waterglass.
As a kind of advanced optimizing for sintered flux for the welding of ocean engineering high-strength steel of the present invention, the sintering weldering
Agent is prepared from the following raw materials according to parts by weight: 19 ~ 24 parts of magnesia, 20-25 parts of fluorite, 12 ~ 16 parts of Alpha-alumina, wollastonite 8 ~
15 parts, 4 ~ 7 parts of marble, 1 ~ 3 part of sodium fluoride, 1-3 parts of lithium fluoride, 1.5-3 parts of zircon sand, 2 ~ 3 parts of bloodstone, alloy 0.5-
1.5 parts and 14 ~ 16 parts of pure sodium silicate.
The preparation method of the sintered flux for the welding of ocean engineering high-strength steel, comprising the following steps:
Step (1) takes above-mentioned raw material according to parts by weight, then that the dry mash in raw material is dry-mixed uniformly, obtains
Mixed dry material, it is spare；
Pure sodium silicate is poured into the mixed dry material that step (1) obtains and is carried out wet mixing by step (2), obtains mixture,
It is spare；
The mixture that step (2) obtains is granulated by step (3) in granulation disc, spare；
Step (3) are placed under the conditions of 150 ~ 200 DEG C by the product being granulated and dry by step (4), obtain semi-finished product, standby
With；
The semi-finished product that step (4) obtains are carried out high temperature sintering by step (5) at a temperature of 650 DEG C ~ 700 DEG C, and sintering is completed
Cooling, packaging is put in storage to get the sintered flux for the welding of ocean engineering high-strength steel is arrived.
It is advanced optimized as a kind of preparation method of the sintered flux for the welding of ocean engineering high-strength steel of the present invention,
The high temperature sintering time described in step (5) is 1.5-2.5h.
Compared with prior art, the present invention at least have have the advantage that and the utility model has the advantages that
(1) solder flux craftsmanship provided by the invention is good, and under wider technological specification, arc stability takes off slag and is easy, weldering
Road beautiful appearance.
(2) the production adaptability of solder flux of the present invention is good, and flux particle degree is uniform.
(3) solder flux of the invention and solid welding wire H05Mn2Ni2MoA cooperate, and deposited metal composition is stablized, and yield strength is big
In 550MPa, -40 DEG C of Charpy-V impact powers are greater than 100J, can meet the welding of E550 steel plate of the yield strength greater than 550MPa.
(4) solder flux of the invention and solid welding wire H08Mn2Ni3MoA cooperate, and deposited metal composition is stablized, and yield strength is big
In 690MPa, -40 DEG C of Charpy-V impact powers are greater than 100J, can meet the welding of E690 steel plate of the yield strength greater than 690MPa.
(5) solder flux of the invention and solid welding wire cooperation deposited metal diffusible hydrogen are lower, can meet HD≤5.0mL/100g
(gas chromatography).
Specific embodiment
To be clearer and more comprehensible the contents of the present invention, below in conjunction with specific embodiment, the present invention will be described in detail.
A kind of sintered flux for the welding of ocean engineering high-strength steel, belongs to fluorine alkaline type sintered flux, according to parts by weight
It is composed of the following components: 19 ~ 24 parts of MgO, CaF220-25 parts, Al2O312 ~ 16 parts, SiO2 4 ~ 8 parts, CaO8 ~ 10 part, BaO
2 ~ 4 parts, NaF1 ~ 3 part, 1-3 parts of LiF, ZrO21-2 parts, Fe2O3 2-3 parts, 0.5~1.5 part of alloy and 14~16 parts of waterglass.
The sintered flux, solder flux slag system is mainly by MgO-CaO-BaO-CaF2-Al2O3-SiO2System's composition.
The adding manner of solder flux each component of the present invention is as follows: MgO is in the form of magnesia；CaF2 in the form of fluorite,
Al2O3In the form of Alpha-alumina, SiO2In the form of wollastonite, CaO by wollastonite and it is marmorean in the form of, ZrO2With zirconium English
The form of sand, NaF is in the form of sodium fluoride, and LiF is in the form of lithium fluoride, and BaO is in the form of barium carbonate, Fe2O3With bloodstone
Form, alloy is in the form of alloy powder, and waterglass is in the form of pure sodium silicate.The sintered flux according to parts by weight by
Following raw material is made: 19 ~ 24 parts of magnesia, 20-25 parts of fluorite, 12 ~ 16 parts of Alpha-alumina, 8 ~ 15 parts of wollastonite, marble 4 ~ 7
Part, 1 ~ 3 part of sodium fluoride, 1-3 parts of lithium fluoride, 1.5-3 parts of zircon sand, 2 ~ 3 parts of bloodstone, 0.5-1.5 parts of alloy and pure sodium water glass
14 ~ 16 parts of glass.
The preparation method of the sintered flux for the welding of ocean engineering high-strength steel, comprising the following steps:
Step (1) takes above-mentioned raw material according to parts by weight, then that the dry mash in raw material is dry-mixed uniformly, obtains
Mixed dry material, it is spare；
Pure sodium silicate is poured into the mixed dry material that step (1) obtains and is carried out wet mixing by step (2), obtains mixture,
It is spare；
The mixture that step (2) obtains is granulated by step (3) in granulation disc, spare；
Step (3) are placed under the conditions of 150 ~ 200 DEG C by the product being granulated and dry by step (4), obtain semi-finished product, standby
With；
Step (5), the semi-finished product for obtaining step (4) carry out high temperature sintering 1.5-2.5h at a temperature of 650 DEG C ~ 700 DEG C,
It is sintered and completes cooling, packaging is put in storage to get the sintered flux for the welding of ocean engineering high-strength steel is arrived.
Solder flux main raw material(s) requires to be shown in Table 1.
The chemical component requirement of 1 main raw material(s) of table
The present invention advocates that grain diameter is excessive will to make built-up welding using the flux particle between 10-60 mesh as finished product solder flux
Process is unstable, and partial size is too small, adversely affects to the welding process under working condition.
Solder flux described in this patent has the following characteristics that
(1) in terms of raw material selection, as far as possible selection P, S etc. lower raw material of impurity contents (including powder and
Waterglass), to reduce transition of S, P matter into deposited metal, the degree of purity of deposited metal is improved, it is tough to be favorably improved its low temperature
Property.
(2) novel MgO-CaO-BaO-CaF is used2-Al2O3-SiO2Slag system.The characteristics of slag system is basicity height, can be effective
The content of weld metal non-metallic inclusion is reduced, weld metal oxygen content is reduced, improves its low-temperature flexibility.
(3) contain a certain amount of zircon sand in solder flux.On the one hand zircon sand can improve the removability of slag, on the one hand can be to weldering
A certain amount of Zr of transition in metal is stitched, refinement crystal grain is played the role of, improves weld metal low-temperature flexibility.
(4) contain higher CaF in solder flux2And a certain amount of NaF and LiF, three kinds of fluorides and SiO2Interaction,
Good dehydrogenation effect can be played.
(5) a certain amount of marble, barium carbonate and bloodstone are added in solder flux, the oxidisability of arc atmosphere can be improved,
The hydrogen partial pressure for reducing arc atmosphere, to reduce diffusible hydrogen.
The design considerations of component is as follows in solder flux of the present invention:
MgO is a kind of strong basicity oxide, is slag chief component.In basic slag system, weld seam is can be improved in it
The impact flexibility of metal.Result of study of the present invention shows the content of MgO no more than 24 parts, and excessive MgO can will increase slag
Viscosity, improve the setting temperature of slag, reduce the mobility of slag, seriously affect the mouldability of weld seam.But content of MgO cannot
Lower than 19 parts, on the one hand too low MgO will cause solder flux fusing point too low, causes appearance of weld bad, on the one hand will cause slag
Basicity is too low, and the low-temperature flexibility of weld metal is caused to decline.
CaF2It is basic anhydride, is slag chief component, slag former and diluent are belonged in solder flux.Molten
The CaF of state2Mobility is preferable, can reduce viscosity, fusing point and the surface tension of slag, improve the mobility of slag.In addition,
CaF2It is also obvious to the diffusible hydrogen effect for reducing weld metal.The present invention the experimental results showed that, CaF2Content cannot be below
20 parts, too low content, which is be easy to cause, to be sprawled poor, and weld face generates more load mould.In addition, experiment of the invention
The result shows that CaF2Content no more than 25 parts, excessively high CaF2Content viscosity coefficient of dross will be made too low, cause welding bead at
Type is bad.
CaO is a kind of strong basicity oxide, for slag chief component.Adjustable slag basicity, and can effectively mention
High solder flux heavy current ability improves slag surface tension and interfacial tension.Result of study of the present invention shows that the content of CaO cannot
More than 10 parts, excessive CaO can reduce the mobility of slag, and weld seam spreadability is made to be deteriorated；But CaO cannot be below 8 parts, too low
CaO causes flux basicity to decline, and can reduce the low-temperature flexibility of weld metal.
Al2O3It is a kind of amphoteric oxide, is the chief component of solder flux.It is a kind of important vitreum in solder flux
Slag making materials, Al2O3It is the regulator of viscosity coefficient of dross, the mobility of slag can be adjusted, there is the work for increasing slag surface tension
With.Result of study of the present invention shows Al2O3Content no more than 16 parts, excessive Al2O3It can make to generate stomata and fiber crops in weld seam
Point, but Al2O3It cannot be below 12 parts, too low Al2O3Weld seam can be made to show uneven, influence appearance of weld.
SiO2It is a kind of acidic materials, main function is slag making, the viscosity and mobility of liquid slag bath is adjusted, to weld seam
It forms extremely important.Result of study of the present invention shows SiO2When additional amount is greater than 8 parts, weld metal increasing silicon is more serious, weld seam gold
Belong to non-metallic inclusion to increase, causes weld metal low-temperature flexibility to decline, but SiO2Additional amount cannot less than 4 parts, otherwise will
Cause appearance of weld bad.
ZrO2It is a kind of acidic oxide, there is negative linear expansion coefficient.Volume change in cooling procedure, it is suitable to skull
Benefit removing has positive effect, and ZrO2Adjustable slag bath viscosity, improve welding bead molding, while can into weld metal mistake
A certain amount of Zr is crossed, the low-temperature flexibility of deposited metal is improved.
NaF, LiF: being low melting point fluoride, and main function is the diffusible hydrogen for reducing weld metal.
Alloy: predominantly ferrosilicon, ferrotianium and manganese metal etc. primarily serve the effect of deoxidation.
Waterglass: main function is bonding powder.When waterglass additional amount is less than required minimum flow, solder flux was granulated
Granulating effect is deteriorated in journey；When additional amount is excessive, more SiO can be introduced into formula2, unfavorable shadow is generated to solder flux craftsmanship
It rings.
Constituent content in above-mentioned formula according to the present invention, has prepared 3 kinds of powders, respectively embodiment 1-3, and according to
Preparation process of the present invention prepares experiment solder flux, and specific proportion is shown in Table 2, it should be noted that the invention is not limited to these
Embodiment.
2 embodiment 1-3 composition proportion (part) of table
Solder flux made of said components is detected, it is before soldering test that solder flux is small by 350 ~ 400 DEG C of bakings 2
When, H05Mn2Ni2MoA and H08Mn2Ni3MoA welding wire for submerged-arc welding is then matched respectively, according to national standard GB/T 5118-2012 standard
Regulation carries out deposited metal composition analysis, deposited metal Mechanics Performance Testing；Hydrogen is diffused by GB/T 3965-2012
Assay.By taking Φ 4.0mm welding wire as an example, welding condition are as follows: source of welding current DC reverse connection, 550 ~ 600A of welding current,
28 ~ 32V of weldingvoltage, 100 ~ 180 DEG C of temperature between road, test result is as shown in table 3-8.
3 embodiment solder flux of table matches H05Mn2Ni2MoA welding wire deposited metal composition (wt%)
4 embodiment solder flux of table matches H08Mn2Ni3MoA welding wire deposited metal composition (wt%)
5 embodiment solder flux of table matches H05Mn2Ni2MoA welding wire deposited metal mechanical property
6 embodiment solder flux of table matches H08Mn2Ni3MoA welding wire deposited metal mechanical property
7 embodiment solder flux of table matches H05Mn2Ni2MoA welding wire deposited metal diffusible hydrogen content (gas chromatography)
8 embodiment solder flux of table matches H08Mn2Ni3MoA welding wire deposited metal diffusible hydrogen content (gas chromatography)
From the above data, solder flux processing performance proposed by the invention is excellent, and diffusible hydrogen is low, with solid welding wire
H05Mn2Ni2MoA cooperation, can meet the welding of E550 steel plate of the yield strength greater than 550MPa；With solid welding wire
H08Mn2Ni3MoA cooperation, can meet the welding of E690 steel plate of the yield strength greater than 690MPa.
Claims (4)
1. a kind of sintered flux for the welding of ocean engineering high-strength steel, belongs to fluorine alkaline type sintered flux, which is characterized in that according to
Parts by weight are composed of the following components: 19 ~ 24 parts of MgO, CaF220-25 parts, Al2O312 ~ 16 parts, SiO2 4 ~ 8 parts, CaO8 ~
10 parts, 2 ~ 4 parts of BaO, NaF1 ~ 3 part, 1-3 parts of LiF, ZrO21-2 parts, Fe2O3 2-3 parts, 0.5~1.5 part of alloy and waterglass
14~16 parts.
2. a kind of sintered flux for the welding of ocean engineering high-strength steel as described in claim 1, which is characterized in that the burning
Knot solder flux is prepared from the following raw materials according to parts by weight: 19 ~ 24 parts of magnesia, 20-25 parts of fluorite, 12 ~ 16 parts of Alpha-alumina, silicon ash
8 ~ 15 parts of stone, 4 ~ 7 parts of marble, 1 ~ 3 part of sodium fluoride, 1-3 parts of lithium fluoride, 1.5-3 parts of zircon sand, 2 ~ 3 parts of bloodstone, alloy
0.5-1.5 parts and 14 ~ 16 parts of pure sodium silicate.
3. a kind of preparation method of sintered flux for the welding of ocean engineering high-strength steel as claimed in claim 2, feature
It is, comprising the following steps:
Step (1) takes above-mentioned raw material according to parts by weight, then that the dry mash in raw material is dry-mixed uniformly, is mixed
Siccative, it is spare；
Pure sodium silicate is poured into the mixed dry material that step (1) obtains and is carried out wet mixing by step (2), obtains mixture, standby
With；
The mixture that step (2) obtains is granulated by step (3) in granulation disc, spare；
Step (3) are placed under the conditions of 150 ~ 200 DEG C by the product being granulated and dry by step (4), obtain semi-finished product, spare；
The semi-finished product that step (4) obtains are carried out high temperature sintering by step (5) at a temperature of 650 DEG C ~ 700 DEG C, and sintering is completed cold
But, it packs, be put in storage to get the sintered flux for the welding of ocean engineering high-strength steel is arrived.
4. a kind of preparation method of sintered flux for the welding of ocean engineering high-strength steel as claimed in claim 3, feature
It is, the high temperature sintering time described in step (5) is 1.5-2.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651166.9A CN106271218B (en) | 2016-08-10 | 2016-08-10 | A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651166.9A CN106271218B (en) | 2016-08-10 | 2016-08-10 | A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106271218A CN106271218A (en) | 2017-01-04 |
| CN106271218B true CN106271218B (en) | 2018-12-25 |
Family
ID=57668184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610651166.9A Active CN106271218B (en) | 2016-08-10 | 2016-08-10 | A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106271218B (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624460B (en) * | 2017-01-06 | 2021-06-04 | 招商局重工（江苏）有限公司 | Marine low-temperature steel submerged-arc welding sintered flux |
| CN108581273A (en) * | 2017-12-22 | 2018-09-28 | 洛阳双瑞特种合金材料有限公司 | A kind of ultralow diffusible hydrogen sintered flux and preparation and application for low-temperature steel welding |
| CN108581271A (en) * | 2018-03-30 | 2018-09-28 | 锦州公略焊接技术有限公司 | Ocean engineering high performance sintered solder flux and its production technology |
| CN108788529B (en) * | 2018-06-30 | 2020-10-16 | 东北大学 | Marine high-alkalinity fluorine-alkali type sintered flux and preparation method thereof |
| CN108788526A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | Low fluorine-type sintered flux of a kind of high-silicon high-manganese peculiar to vessel and preparation method thereof |
| CN108526760A (en) * | 2018-06-30 | 2018-09-14 | 东北大学 | Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel |
| CN108544138A (en) * | 2018-06-30 | 2018-09-18 | 东北大学 | A kind of high fluorine-type sintered flux of superelevation titanium peculiar to vessel and preparation method thereof |
| CN108465979A (en) * | 2018-06-30 | 2018-08-31 | 东北大学 | A kind of Super-high Manganese high-silicon type sintered flux peculiar to vessel and preparation method thereof |
| CN108788523A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | Fluorine-type sintered flux and preparation method thereof in a kind of high-silicon high-manganese peculiar to vessel |
| CN108723640A (en) * | 2018-06-30 | 2018-11-02 | 东北大学 | A kind of high silicon sintered flux of fluorine alkaline type peculiar to vessel and preparation method thereof |
| CN108788524A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | A kind of fluorine alkali silicomanganese type sintered flux peculiar to vessel and preparation method thereof |
| CN108788525A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof |
| CN108544139A (en) * | 2018-06-30 | 2018-09-18 | 东北大学 | A kind of high fluorine-type sintered flux of low titanium peculiar to vessel and preparation method thereof |
| CN108788522A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | One kind high high fluorine-type sintered flux of titanium peculiar to vessel and preparation method thereof |
| CN108788528A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof |
| CN108465981A (en) * | 2018-06-30 | 2018-08-31 | 东北大学 | A kind of high alkalinity silicomanganese type sintered flux peculiar to vessel and preparation method thereof |
| CN108788538A (en) * | 2018-06-30 | 2018-11-13 | 东北大学 | One kind middle high fluorine-type sintered flux of titanium peculiar to vessel and preparation method thereof |
| CN109014657A (en) * | 2018-09-13 | 2018-12-18 | 郑州凤凰新材料科技有限公司 | A kind of High Speed Welding sintered flux and preparation method thereof |
| CN110102933B (en) * | 2019-04-19 | 2021-01-26 | 洛阳双瑞特种合金材料有限公司 | Smelting flux for welding 9Ni steel and preparation method thereof |
| CN112059473A (en) * | 2020-09-12 | 2020-12-11 | 北京金威焊材有限公司 | Ultralow-hydrogen type high-alkalinity high-toughness sintered flux |
| CN114260616A (en) * | 2022-01-11 | 2022-04-01 | 哈尔滨焊接研究院有限公司 | TC4 titanium alloy submerged arc welding flux and preparation method and application thereof |
| CN116900551B (en) * | 2023-09-12 | 2023-11-24 | 东北大学 | Secondary-utilization light smelting flux and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137094A (en) * | 1981-02-17 | 1982-08-24 | Kawasaki Steel Corp | High speed submerged arc welding method of single layer on both sides |
| CN1608791A (en) * | 2003-10-22 | 2005-04-27 | 株式会社神户制钢所 | Melt flux for submerged-arc welding |
| JP2007268541A (en) * | 2006-03-30 | 2007-10-18 | Kobe Steel Ltd | Fused flux for submerged arc welding |
| CN101229609A (en) * | 2007-01-26 | 2008-07-30 | 株式会社神户制钢所 | Welding flux for electroslag surfacing |
| CN101804525A (en) * | 2010-03-25 | 2010-08-18 | 河海大学常州校区 | Sintered flux for submerged arc welding of FCW with martensitic stainless steel hard surface |
| CN103846577A (en) * | 2014-03-26 | 2014-06-11 | 锦州天鹅焊材股份有限公司 | Soldering flux for submerged arc soldering of X100 pipeline steel and preparation method thereof |
-
2016
- 2016-08-10 CN CN201610651166.9A patent/CN106271218B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137094A (en) * | 1981-02-17 | 1982-08-24 | Kawasaki Steel Corp | High speed submerged arc welding method of single layer on both sides |
| CN1608791A (en) * | 2003-10-22 | 2005-04-27 | 株式会社神户制钢所 | Melt flux for submerged-arc welding |
| JP2007268541A (en) * | 2006-03-30 | 2007-10-18 | Kobe Steel Ltd | Fused flux for submerged arc welding |
| CN101229609A (en) * | 2007-01-26 | 2008-07-30 | 株式会社神户制钢所 | Welding flux for electroslag surfacing |
| CN101804525A (en) * | 2010-03-25 | 2010-08-18 | 河海大学常州校区 | Sintered flux for submerged arc welding of FCW with martensitic stainless steel hard surface |
| CN103846577A (en) * | 2014-03-26 | 2014-06-11 | 锦州天鹅焊材股份有限公司 | Soldering flux for submerged arc soldering of X100 pipeline steel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106271218A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106271218B (en) | A kind of sintered flux and preparation method thereof for the welding of ocean engineering high-strength steel | |
| CN108581270B (en) | Sintered flux for welding LPG ship and preparation method and application thereof | |
| CN106238965A (en) | A kind of 9Ni steel welding sintered flux and preparation method thereof | |
| CN101780613B (en) | Special rare earth alloy silver-brazing filler metal | |
| CN103008621B (en) | Process for industrially producing ultrapure Inconel 690 (I-690) alloy electroslag remelting ingot of 3 tons | |
| CN106514055A (en) | Ship steel submerged-arc horizontal welding flux and preparation method thereof | |
| CN101745758B (en) | Nickel-based welding rod for AC welding | |
| CN106624460B (en) | Marine low-temperature steel submerged-arc welding sintered flux | |
| CN102350598B (en) | Chromium-nickel austenitic stainless steel submerged-arc welding sintered flux | |
| CN108907494B (en) | Nuclear power AG728 steel welding rod and preparation method thereof | |
| CN103464931A (en) | High-toughness sintered flux for submerged-arc welding, and preparation method thereof | |
| CN101954553B (en) | 9Ni steel sintered flux and preparation method thereof | |
| CN103273222B (en) | High-strength high-tenacity sintered flux for afterheat-free welding | |
| CN111660038B (en) | Sintered flux for welding high-manganese low-temperature steel and preparation method thereof | |
| CN103725895A (en) | Remelting electroslag premelting material for high alloy steel round billet containing aluminum and titanium and preparation method thereof | |
| CN105195924A (en) | Nickel baseband pole electroslag surfacing sintering flux and preparation method | |
| CN106736044A (en) | A kind of small groove submerged arc flux of hull steel and preparation method thereof | |
| CN108581273A (en) | A kind of ultralow diffusible hydrogen sintered flux and preparation and application for low-temperature steel welding | |
| CN104139250A (en) | High-strength high-tenacity electro-gas welding agent core welding wire and preparation method | |
| CN110153595A (en) | Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side | |
| CN112575146A (en) | Smelting process and application of 42CrMo4 steel | |
| CN105925882B (en) | A kind of centrifugal cast cannulation and its preparation technology | |
| CN106493321A (en) | Steel-making tundish covering flux and preparation method thereof | |
| CN109093286A (en) | A kind of 2.25Cr-1Mo steel exchange submerged arc welding welding wire and solder flux | |
| CN108581274A (en) | A kind of wind tower low hydrogen, high toughness sintered flux and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |