CN105499837A - Self-protecting flux-cored wire and welding method - Google Patents
Self-protecting flux-cored wire and welding method Download PDFInfo
- Publication number
- CN105499837A CN105499837A CN201510967585.9A CN201510967585A CN105499837A CN 105499837 A CN105499837 A CN 105499837A CN 201510967585 A CN201510967585 A CN 201510967585A CN 105499837 A CN105499837 A CN 105499837A
- Authority
- CN
- China
- Prior art keywords
- flux
- cored wire
- welding
- self
- fluoride
- 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.)
- Pending
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
- B23K35/3601—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
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
Abstract
The invention provides a self-protecting flux-cored wire. The powder of the flux-cored wire comprises fluorides, oxides, carbonates, boron, metals Mo, Ti, Mn, Ni, V, Cr, W, Nd, Ce and metallic aluminium. According to the invention, through adjusting the doping metals and/or non-metals, the physicochemical performances of stability, wear resistance and the like of the wire can be improved, and meanwhile, the physicochemical performances of toughness and the like of deposited metals can also be improved, and then the welding quality is improved. The invention further provides a welding method. In the welding method, the self-protecting flux-cored wire provided by the invention is used, and through using the self-protecting flux-cored wire provided by the invention, the toughness and the plasticity of the deposited metals can be improved, and then the welding quality is improved.
Description
Technical field
The present invention relates to welding field, in particular to a kind of self-protection flux-cored wire and the welding method using this welding wire.
Background technology
Welding is a kind of material processing technique, and current science and technology is fast-developing, and welding material also obtain develop rapidly.Along with industrial development, welding procedure changes to mechanization, automation and intelligent high-efficiency rate type.
In traditional welding process, due to be in metal under the condition of high temperature can with the oxygen in air and nitrogen generation chemical reaction, the cavity produced therefrom and the compound of generation can affect the intensity of welding point.Therefore, in traditional welding method, all need to use argon gas, helium etc. to weld with isolated air as protective gas.But, the auxiliary equipment such as gas cylinder are needed due to gas shielded welding, higher to the requirement in place, be also unsuitable for the operation of the environment such as bridge and field; Meanwhile, if ambient wind velocity is very fast, protective gas can be made cannot to carry out available protecting at solder side.Thus, gas shielded welding also can only carry out when wind speed is less.As can be seen here, the restrictive condition of this traditional welding or many, very unpractical.
Flux-cored wire is also referred to as flux cored wire, can by the alloying component kind of adjustment medicinal powder and ratio, design various different purposes easily (wear-resisting, high-strength, heat-resisting, anti-corrosion, low temperature resistant etc.) welding material because the alloying component of the medicine core of flux-cored wire can carry out flexible adjustment as required.And this also makes people can prepare multiple extraordinary flux-cored wire as required, and these be all common solid core welding wire cannot by smelt and prepared by the method for rolling.Meanwhile, due to the product structure feature of flux-cored wire, thus, the welding technological properties of flux-cored wire and welding efficiency compare solid core welding wire or stick electrode, are advantageously.
Self-protection flux-cored wire is on the basis of common flux-cored wire, further in medicine core component, adds the materials such as slag making, gas making, deoxidation, denitrogenation.Thus, at self-protection flux-cored wire except having the advantage of common flux-cored wire, it does not need to carry out further gas shield in welding process simultaneously yet.Thus self-protection flux-cored wire is more suitable in bridge, plateau or other transport inconvenience or needs the welding under narrow environment.
In prior art, although to self-protection flux-cored wire, in the medicine core of especially self-protection flux-cored wire, component has had research for a long time.But no matter existing flux-cored wire is that the performance of the toughness of deposited metal after welding and intensity etc. is not very good, needs adjust welding wire medicine core component and optimize further, to obtain the self-protection flux-cored wire of excellent performance.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of self-protection flux-cored wire, and described self-protection flux-cored wire, by components such as adjustment oxide, carbonate and doping metals, can improve the physicochemical properties such as the wearability of weld metal, toughness and stable in properties.
The second object of the present invention is the preparation method providing a kind of described welding method; self-protection flux-cored wire described in the application is used in the method; by using flux-cored wire described in the application and optimizing welding condition; toughness and the plasticity of deposited metal can be improved, and then improve welding quality.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
Flux-cored wire described in the present patent application, the medicinal powder of described flux-cored wire comprises fluoride, oxide, carbonate, boron, metal A l, Mo, V, Ni, Cr, Ti, Mo, W, Nd, Ce; Wherein, according to percentage by weight fluoride 45%-60%, oxide 10%-20%, carbonate 2%-8%, boron 0.02%-0.1%, metal A l1%-3%, Mo1%-3%, V3%-5%, Ni4%-6%, Cr5%-7%, Ti0.1%-0.3%, W3%-7%, Nd1%-3%, Ce1%-3%.
In the present application, by adding the interpolation of metal M o and V, the toughness of deposited metal can be improved; Meanwhile, the interpolation of Metal Cr, also can improve the intensity of deposited metal further.Same, the metal Ti added in medicine core and boron can not only as strong deoxidier and C, N compound forming elements; Meanwhile, TiN and BN that reaction is formed also can refinement weld seam particle, improve welding quality, and the metal Ti be mixed in deposited metal, B element also can improve the toughness of deposited metal.Further, rare earth element nd, Ce add, and also effectively can reduce the pore formed in deposited metal.
In the present application, by the further optimization of each constituent content and adjustment, enhance the synergy between component, also can improve welding quality further.
Optionally, in the present application, the content ratio of metal Ti and boron is 1:1-10:1; Preferably, in the present application, the content ratio of metal Ti and boron is 5:1-10:1.
In the present application, by the metal Ti of adding and the adjustment of Boron contents and optimization, effectively can improve the toughness of weld metal, and then improve welding quality.
Optionally, in the present application, described flux-cored wire with mild steel steel band for welding wire crust; Preferably, in the present application, the part by weight of described mild steel steel band chemical composition is C be 0.03%, Si be 0.01%, Mn be 0.21%, S be 0.005%, P is 0.001%, and all the other are iron.
In the present application, with low-carbon (LC), low-sulfur steel band for welding wire crust, can effective isolating exterior air ambient, ensure the stability of the composition of medicine core powder in welding wire, and then improve the quality of welding.
Optionally, in the present application, in described flux-cored wire, described fluoride is the mixture of calcirm-fluoride, barium fluoride and sodium fluozirconate.
In the present application, add the spreadability effect that calcirm-fluoride can improve slag, and then reduce the chance with the direct basis of hydrogen atom in electric arc of liquid metal in welding process, reduce the hydrogen-sucking amount of weld metal.Barium fluoride can support very short electric arc, reduces arc energy and welding wire burning velocity, more easily control molten bath during comprehensive welding, the chance of molten drop absorbed nitrogen and hydrogen when decreasing welded by self-shielded flux cord wire.The Zr that the arc stability being conducive to the adding of sodium fluozirconate improving welding wire decomposes out simultaneously can make the grain refinement of deposited metal.
Optionally, in the present application, described calcirm-fluoride accounts for the percentage of medicine core grain weight quality lower than 10%.Because calcirm-fluoride can affect the stability of electric arc, Calcium Fluoride Content is too high, and the stability of electric arc can be made to be deteriorated gradually, and slag also can be seriously thinning, cannot realize vertical position welding.
Optionally, in the present application, described oxide is SiO
2, TiO
2and the mixture of MgO.
Oxide used in the present application, can realize effective slag making and regulate the effect of residual Al in deposited metal.
Optionally, in the present application, described oxide S iO
2, TiO
2and the ratio of MgO is (1-5): (1-5): (3-12); Preferably, in the present application, described oxide S iO
2, TiO
2and the ratio of MgO is 1:1:2.
In the present application, adjusted by the ratio of different oxide, the toughness of deposited metal can be improved, and improve the processing performance of welding.
Optionally, in the present application, described carbonate is CaCO
3.
Calcium carbonate used in the present application, can effectively improve the effect of gas shielded in welding process and strengthen blow force of arc, thus is conducive to the formation improving fusion penetration and weld seam, avoid producing do not merge, the defect of slag etc.
Optionally, in the present application, the consumption of calcium carbonate is 2%-8%.If the consumption of calcium carbonate is less than 2%, then cannot reach the object of protection; If calcium carbonate consumption is greater than 8%, then there will be in welding process and splash obviously, the defect of degradation manipulation environment.
Further; in the present application; can further include the method preparing described self-protection flux-cored wire; concrete; after choosing the mild steel steel band of appropriate size specification, steel band will be selected through ultrasonic cleaning, oven dry, then steel band be rolled into " U " type; then described medicine core powder is loaded in described " U " type structure, then prepare the self-protection flux-cored wire with target size and specification through techniques such as rolling sealing, tube reducing, aligning, travelling expenses, packagings.
Further, present invention also provides a kind of welding method, in described method, use flux-cored wire according to any one of claim 1-8.
In the present application, owing to employing flux-cored wire described in the application, so the toughness of weld metal effectively can be improved, and reduce the solid solution capacity of hydrogen-oxygen in weld metal etc., and then improve welding quality.
Optionally, in welding method described in the present application, welding current used is 250-325A, weldingvoltage is 20-35V, speed of welding is 12-20m/h.Preferably, in the present application method, described welding current is 275-300A, weldingvoltage is 25-30V, speed of welding is 16-18m/h.
Optionally, in welding method described in the present application, the stem elongation degree of flux-cored wire is 25mm-30mm.
In the present application method, by the further adjustment of welding condition and optimization, effectively can improve welding quality.
Compared with prior art, beneficial effect of the present invention is:
(1) in the present application, by the described selection of flux-cored wire Chinese medicine core powder component and the adjustment of further each constituent content, effectively can improve the physical and chemical parameters such as the toughness of weld metal and intensity, thus improve the quality of welding.
(2), in the present application, by adjustment and the optimization of welding conditions, welding efficiency can be improved further, and improve welding quality.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturer suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1
Take raw material according to raw material weight ratio as shown in table 1 below, then with mild steel steel band for welding wire crust, the part by weight of the chemical composition of wherein said low carbon ribbon is C is 0.03%, Si is 0.01%, Mn be 0.21%, S is 0.005%, P is 0.001%, and all the other are iron.After mild steel steel band is cut into appropriate size specification; by steel band through ultrasonic cleaning, oven dry; then steel band is rolled into " U " type; then described medicine core powder is loaded in described " U " type structure, then prepare through techniques such as rolling sealing, tube reducing, aligning, travelling expenses, packagings there is suitable dimension and specification embodiment 1-5 and comparative example 1 described in self-protection flux-cored wire.
Table 1 self-protection flux-cored wire medicine core chemical composition (percetage by weight)
Preparation-obtained self-protection flux-cored wire in embodiment 1-5 and comparative example 1 is carried out deposited metal performance test; deposited metal test piece for welding selects X70 steel plate; welding condition is: weldingvoltage 30V, welding current 300A, speed of welding 16m/h, and welding technological properties is as shown in table 2 below:
Table 2 embodiment 1-5 and comparative example 1 welding procedure
Table 3 embodiment 1-5 and comparative example 1 deposited metal mechanical property
Embodiment 2
With X70 steel plate for cladding test piece for welding, and adopt material rate described in embodiment 1, the flux-cored wire simultaneously prepared according to method described in embodiment 1.Choose with a batch production welding wire, and welding wire is carried out soldering test under different weldingvoltage, welding current and speed of welding, result is as shown in following table 4-6.
Table 4 weldingvoltage is on the impact (welding current 300A, speed of welding 16m/h) of welding technological properties
| Voltage (V) | Welding technological properties |
| 20 | Weld seam is substantially shapeless, and weld seam is narrow, and electric arc is unstable |
| 25 | Weld seam is narrower, and formability is slightly good, and slag spreadability is general, and electric arc is more steady |
| 30 | Appearance of weld is good, slag cover and the removability of slag good, arc stability |
| 35 | Weld pool width is large, rough, is shaped poor, covers bad |
Table 5 welding current is on the impact (weldingvoltage 30V, speed of welding 16m/h) of welding technological properties
Table 6 speed of welding is on the impact (weldingvoltage 30V, welding current 300A) of welding technological properties
Self-protection flux-cored wire stable chemical nature in the present patent application, arc stability in welding process, easily de-slag, can carry out all-position welding; Meanwhile, after adopting the welding of the present application method, Toughness of Deposited Metal is high, welding effect good.
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. a self-protection flux-cored wire, is characterized in that, described flux for flux-cored wire powder comprises fluoride, oxide, carbonate, boron, metal A l, Mo, V, Ni, Cr, Ti, W, Nd, Ce;
Wherein, according to percentage by weight fluoride 45%-60%, oxide 10%-20%, carbonate 2%-8%, boron 0.02%-0.1%, metal A l5%-8%, Mo1%-3%, V3%-5%, Ni4%-6%, Cr5%-7%, Ti0.1%-0.3%, W3%-7%, Nd1%-3%, Ce1%-3%.
2. flux-cored wire according to claim 1, is characterized in that, described flux-cored wire with mild steel steel band for welding wire crust.
3. flux-cored wire according to claim 1, is characterized in that, the ratio of described metal Ti and boron is 1:1-10:1.
4. flux-cored wire according to claim 1, is characterized in that, described fluoride is the mixture of calcirm-fluoride, barium fluoride and sodium fluozirconate.
5. flux-cored wire according to claim 3, is characterized in that, described calcirm-fluoride accounts for the percentage of medicine core grain weight quality lower than 10%.
6. flux-cored wire according to claim 1, is characterized in that, described oxide is SiO
2, TiO
2and the mixture of MgO.
7. flux-cored wire according to claim 5, is characterized in that, in described oxide, and SiO
2, TiO
2and the ratio of MgO is (1-5): (1-5): (3-12).
8. flux-cored wire according to claim 1, is characterized in that, described carbonate is CaCO
3.
9. a welding method, is characterized in that, uses flux-cored wire according to any one of claim 1-8 in described method.
10. welding method according to claim 9, is characterized in that, in described method, welding current is 250-325A, weldingvoltage is 20-35V, speed of welding is 12-20m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967585.9A CN105499837A (en) | 2015-12-18 | 2015-12-18 | Self-protecting flux-cored wire and welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967585.9A CN105499837A (en) | 2015-12-18 | 2015-12-18 | Self-protecting flux-cored wire and welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105499837A true CN105499837A (en) | 2016-04-20 |
Family
ID=55708341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967585.9A Pending CN105499837A (en) | 2015-12-18 | 2015-12-18 | Self-protecting flux-cored wire and welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105499837A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141485A (en) * | 2016-07-29 | 2016-11-23 | 安徽飞狐焊业股份有限公司 | A kind of high-performance flux-cored wire |
| CN106181127A (en) * | 2016-08-24 | 2016-12-07 | 天津大桥金属焊丝有限公司 | Argon filling self-shield argon tungsten-arc welding flux-cored wire is exempted from the stainless steel pipes back side |
| CN107009051A (en) * | 2017-06-14 | 2017-08-04 | 海宁瑞奥金属科技有限公司 | A kind of high tensile pipeline steel all-position welding low hydrogen high-ductility self-protection flux-cored wire |
| CN108296667A (en) * | 2018-02-12 | 2018-07-20 | 青岛润乾高新科技有限公司 | A kind of flux-cored wire and preparation method for Underwater Welding |
| CN109719424A (en) * | 2019-03-11 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of anti-stomata self-protection flux-cored wire |
| CN110116281A (en) * | 2019-03-21 | 2019-08-13 | 珠海弘德表面技术有限公司 | A kind of self-shielded welding wire of high temperature wear resistant |
| CN110340567A (en) * | 2018-04-03 | 2019-10-18 | 青岛润乾高新科技有限公司 | A kind of low hydrogen flux-cored wire and preparation method thereof suitable for high-strength steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674395A (en) * | 1979-11-20 | 1981-06-19 | Nippon Steel Corp | Noncoated electrode wire for arc welding |
| JPS60261690A (en) * | 1984-06-07 | 1985-12-24 | Kobe Steel Ltd | Coated electrode for cr-mo low alloy steel |
| JP2007054878A (en) * | 2005-08-26 | 2007-03-08 | Nippon Steel Corp | Coated arc welding rod for steel for fire-resisting construction |
| CN102284808A (en) * | 2011-09-02 | 2011-12-21 | 天津大桥焊材集团有限公司 | Whole-position welded high-strength steel basic electrode with super-low hydrogen and high tenacity |
| KR101153572B1 (en) * | 2009-04-22 | 2012-06-12 | 가부시키가이샤 고베 세이코쇼 | Flux cored wire |
| CN104955609A (en) * | 2013-02-04 | 2015-09-30 | 株式会社神户制钢所 | Coated electrode |
-
2015
- 2015-12-18 CN CN201510967585.9A patent/CN105499837A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674395A (en) * | 1979-11-20 | 1981-06-19 | Nippon Steel Corp | Noncoated electrode wire for arc welding |
| JPS60261690A (en) * | 1984-06-07 | 1985-12-24 | Kobe Steel Ltd | Coated electrode for cr-mo low alloy steel |
| JP2007054878A (en) * | 2005-08-26 | 2007-03-08 | Nippon Steel Corp | Coated arc welding rod for steel for fire-resisting construction |
| KR101153572B1 (en) * | 2009-04-22 | 2012-06-12 | 가부시키가이샤 고베 세이코쇼 | Flux cored wire |
| CN102284808A (en) * | 2011-09-02 | 2011-12-21 | 天津大桥焊材集团有限公司 | Whole-position welded high-strength steel basic electrode with super-low hydrogen and high tenacity |
| CN104955609A (en) * | 2013-02-04 | 2015-09-30 | 株式会社神户制钢所 | Coated electrode |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141485A (en) * | 2016-07-29 | 2016-11-23 | 安徽飞狐焊业股份有限公司 | A kind of high-performance flux-cored wire |
| CN106181127A (en) * | 2016-08-24 | 2016-12-07 | 天津大桥金属焊丝有限公司 | Argon filling self-shield argon tungsten-arc welding flux-cored wire is exempted from the stainless steel pipes back side |
| CN107009051A (en) * | 2017-06-14 | 2017-08-04 | 海宁瑞奥金属科技有限公司 | A kind of high tensile pipeline steel all-position welding low hydrogen high-ductility self-protection flux-cored wire |
| CN108296667A (en) * | 2018-02-12 | 2018-07-20 | 青岛润乾高新科技有限公司 | A kind of flux-cored wire and preparation method for Underwater Welding |
| CN108296667B (en) * | 2018-02-12 | 2020-05-29 | 青岛润乾高新科技有限公司 | Flux-cored wire for underwater welding and preparation method |
| CN110340567A (en) * | 2018-04-03 | 2019-10-18 | 青岛润乾高新科技有限公司 | A kind of low hydrogen flux-cored wire and preparation method thereof suitable for high-strength steel |
| CN110340567B (en) * | 2018-04-03 | 2021-04-02 | 青岛润乾高新科技有限公司 | Low-hydrogen flux-cored welding wire suitable for high-strength steel and preparation method thereof |
| CN109719424A (en) * | 2019-03-11 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of anti-stomata self-protection flux-cored wire |
| CN110116281A (en) * | 2019-03-21 | 2019-08-13 | 珠海弘德表面技术有限公司 | A kind of self-shielded welding wire of high temperature wear resistant |
| CN110116281B (en) * | 2019-03-21 | 2021-02-09 | 珠海弘德表面技术有限公司 | High-temperature-wear-resistant self-protection welding wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105499837A (en) | Self-protecting flux-cored wire and welding method | |
| JP4834191B2 (en) | Flux-cored wire for gas shielded arc welding that can be welded in all positions | |
| EP2110195B1 (en) | Pure Ar gas shielded welding MIG flux-cored wire and MIG arc welding method | |
| CN101157164B (en) | Gas coverage arc welding compound core solder wire for steel with high tension | |
| CN106944765B (en) | A kind of self-protection flux-cored wire for X80 pipe line steel | |
| CN102489902B (en) | Metal powder type flux-cored wire used for welding high-impact-toughness steel | |
| CN109789519B (en) | Welding wire for electroslag welding, flux for electroslag welding, and welded joint | |
| CN106994570A (en) | Stainless flux-cored wire | |
| CN104959748A (en) | Flux-cored wire special for maritime work low-temperature high-strength steel | |
| CN107921590A (en) | Flux-cored wire for gas-shielded arc welding | |
| CN104148824A (en) | High-tenacity flux-cored wire for electro-gas welding | |
| CN103962746B (en) | A kind of arc welding gas shielded flux cored wire | |
| CN105710558B (en) | Low-temperature steel flux-cored wire used for submerged arc welding and solder flux | |
| CN103659043A (en) | Series-connected double-wire type combined welding wire for CO2 gas shield high-speed flat fillet weld | |
| CN104139250A (en) | High-strength high-tenacity electro-gas welding agent core welding wire and preparation method | |
| KR100508399B1 (en) | Large heat input submerged arc welding joint, method for producing the joint, steel wire for the submerged arc welding joint, and flux for the submerged arc welding joint | |
| CN105014261A (en) | Seamless metal powder core type flux-cored wire for chromium-molybdenum steel | |
| CN105345315A (en) | High-Ni-content self-protection flux-cored wire for welding high-steel-grade pipeline | |
| CN104785954A (en) | High-strength and high-tenacity basic flux cored wire | |
| CN114161024B (en) | Metal powder type flux-cored wire and preparation method and application thereof | |
| KR19990015625A (en) | Flux Filling Wire for Arc Welding | |
| CN104816106A (en) | Special submerged arc horizontal welding flux for pressure-bearing storage tank | |
| CN107984113A (en) | Multiplewire submerged arc welding flux-cored wire | |
| CN103659051B (en) | A kind of nuclear power engineering carbon steel flux-cored wire and Synthesis and applications thereof | |
| CN104999193A (en) | Iron-based flux-cored wire 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 | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20180814 |