CN104400252A - Flux-cored wire - Google Patents
Flux-cored wire Download PDFInfo
- Publication number
- CN104400252A CN104400252A CN201410557351.2A CN201410557351A CN104400252A CN 104400252 A CN104400252 A CN 104400252A CN 201410557351 A CN201410557351 A CN 201410557351A CN 104400252 A CN104400252 A CN 104400252A
- Authority
- CN
- China
- Prior art keywords
- flux
- cored wire
- orders
- metal
- nickel powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
Abstract
The invention relates to a flux-cored wire for the surfacing repair and manufacturing of a ship, belongs to the field of surfacing materials, and provides a flux-cored wire capable of avoiding cracks in the surface of a surfaced ship and with long service life. The flux-cored wire is characterized in that a nickel-chromium-aluminum type nickel-based alloy flux-cored wire is adopted as a welding material, and the weight ratio of deposited chemical components of Cr:Al:Ni after the surfacing of the flux-cored wire is (1-4):(2-5):(71-78). When the flux-cored wire is adopted for the surfacing repair and manufacturing of the ship, preheating before welding, the surfacing of a transition layer and interlayer heat preservation are not required, so that surfacing steps are reduced, the surfacing time is short, the using amount of the welding material is small, and the requirements of low carbon and environment friendliness are met; with the adoption of the flux-cored wire in a practical production process, the welding quality of the ship is improved, the cost is lowered, and the efficiency is improved.
Description
Technical field
The present invention relates to Bead weld repair, make the flux-cored wire of boats and ships, belong to field of welding material.
Background technology
In the construction of boats and ships, welding is key wherein and support technology, during the chief engineer of welding and when cost respectively accounts for the chief engineer of hull construction and the significant proportion of cost; Wherein welding material is the key factor of welding process, also reflects the important indicator of hull construction quality good or not.
The technique of current reparation, making boats and ships is as follows: (1) prepares groove: adopt edge planer and carbon arc air gouging to prepare groove, the compressed air pressure for carbon arc air gouging is 0.6 ~ 0.8Mpa; (2) groove process: conscientiously check before weldering whether groove size and assembly quality meet relevant requirements; Positive and negative in groove and in each 50mm in bevelled edge both sides and end face remove water stain, greasy dirt, iron rust, dross and carbon and dig the sticky carbon remained; (3) weld: adopt flux-cored wire to weld.
The welding wire of current built-up welding vessel operation layer is generally martensite type alloy welding wire, and above-mentioned martensite type deposited metal, has air quenching characteristic, is martensitic structure, and has Carbide Precipitation under high temperature built-up welding, and heap postwelding roll surface hardness is high.For meeting repair hardness, metallographic structure is stablized, eliminate the requirements such as welding stress, and postwelding needs heat treatment, makes carbide disperse educt on the matrix of built-up welding working lining metal particularly, and can form post-curing like this.Simultaneously because the crack sensitivity of this kind of alloying component is high, need weld preheating, insulation and postheating measure in welding process; In addition in order to improve fusion area performance, built-up welding transition zone is needed, afterwards built-up welding working lining again.Utilizing this martensite type alloy welding wire to pile postwelding, higher than 44HRC, and in use still there is weld and occurs that crackle makes its service life short in the case hardness at Ship Welding place.Simultaneously, because above-mentioned overlaying method needs weld preheating and isothermal holding etc. in weld deposit process, for meeting the temperature requirement of weld deposit process, generally take other mode of heatings, this makes the working environment extreme difference of overlay-operation personnel, is unfavorable for Bead weld repair simultaneously, makes the steady quality of boats and ships.Therefore, a kind of new welding material is developed so that satisfied heap postwelding marine surface is smooth and Ship Life is long.
Summary of the invention
The invention provides a kind of Bead weld repair, make the flux-cored wire of boats and ships, it is realized by following technical proposals:
Bead weld repair of the present invention, making boats and ships flux-cored wire heap postwelding deposition chemical component weight are than being Cr ︰ Al ︰ Ni=1 ~ 4 ︰ 2 ~ 5 ︰ 71 ~ 78.
Wherein, the crust of described flux-cored wire is pure nickel band, and its Chinese medicine core is made up of the component of following weight parts ratio: gold belongs to aluminium ︰ gold and belongs to chromium ︰ firefly stone ︰ metal nickel powder=11 ~ 37 ︰ 12 ~ 38 ︰ 4 ~ 7 ︰ 41 ~ 58.
Concrete, above-mentioned flux-cored wire Chinese medicine core is made up of the component of following weight parts ratio: Jin Shu Lv ︰ Jin Shu Ge ︰ Ying Shi ︰ metal nickel powder=23 ~ 30 ︰ 15 ~ 30 ︰ 5 ︰ 44 ~ 52.
Preferably, above-mentioned flux-cored wire Chinese medicine core is made up of the component of following weight parts ratio: Jin Shu Lv ︰ Jin Shu Ge ︰ Ying Shi ︰ metal nickel powder=25 ︰ 19 ~ 24 ︰ 5 ︰ 50.
Concrete, in the medicine core of above-mentioned flux-cored wire, the particle diameter of metallic aluminium, crome metal, fluorite and metal nickel powder is respectively: metallic aluminium: 100 ~ 200 orders, crome metal: 100 ~ 150 orders, fluorite: 100 ~ 120 orders, metal nickel powder: 150 ~ 200 orders.
Preferably, in medicine core, the particle diameter of metallic aluminium, crome metal, fluorite and metal nickel powder is respectively: metallic aluminium: 150 orders, crome metal: 120 orders, fluorite: 120 orders, metal nickel powder: 200 orders.
Wherein, the weight of medicine core accounts for the ratio of flux-cored wire gross weight is 25 ~ 45%.
Present invention also offers the preparation method of above-mentioned flux-cored wire: using pure nickel band as crust raw material, with metallic aluminium, crome metal, fluorite and metal nickel powder for medicine core component, through nickel strap cutting, drying of deoiling, the dry mixing of medicine core batching, drawing is rolled into flux-cored wire.
Concrete, above-mentioned built-up welding work, cleans up facing surface before weldering, guarantees without greasy dirt, without moisture and other foreign material, then adopt above-mentioned wlding and method to carry out built-up welding.Because facing surface cleans, during built-up welding, in welding wire, deposition chemical composition can not be polluted, and ensures physics, the stable chemical nature of weld.If cleaning of surfaces to be welded is unclean, in built-up welding working lining thickness range, there will be the defect such as white point, pore.
Further, adopt above-mentioned nickel chromium triangle aluminium profiles nickel-base alloy flux-cored wire Bead weld repair, make boats and ships.In flux-cored wire of the present invention, the pure nickel band of metallic aluminium, crome metal and metallic nickel and crust is all high temperature alloy element, it is through heap postwelding, the alloying element of deposited metal also mainly nickel, chromium, aluminium, so the metal of weld has high-temperature stability and high hardness.
Adopt flux-cored wire of the present invention to carry out soldering, the good toughness of heap postwelding fusion area, weld not easy fracture, wearing layer is incrust, and built-up welding working lining structure property is stable, welding stress is little, does not need post weld heat treatment.
Overlaying method before adopting, weld preheating is necessary operation, the main purpose of preheating reduces the cooling velocity of deposited metal heat affected area in weld deposit process, reduces tendency of hardenability and reduce welding stress, preventing mother metal and deposited metal from cracking in weld deposit process.In weld deposit process, need isothermal holding simultaneously, to avoid deposited metal generation martensitic traoformation and quenching effect, improve the toughness of base metal fusion zone, prevent roll surface fracture or wearing layer from peeling off.Post weld heat treatment must be had, to improve postwelding tissue, to eliminate welding stress effect etc. simultaneously.
The invention has the beneficial effects as follows:
1, flux-cored wire composition of the present invention is simple, and raw material sources are extensive, preparation method is simple and easy; Simultaneously obtained flux-cored wire is applied to Bead weld repair boats and ships, saves the steps such as weld preheating, built-up welding transition zone, interlayer insulation, post weld heat treatment and saves energy consumption.
2, flux-cored wire Bead weld repair of the present invention, make boats and ships process in, there is not crackle in weld smooth surface, its service life just can significantly improve.
Detailed description of the invention
Inventor is from practical operation, and the equipment wherein related to and condition should not be construed as restriction of the present invention.Those of ordinary skill in the art, according to such scheme, can also make various forms of amendment, replacement, change.Every amendment, replacement and change done based on above-mentioned technological thought all belongs to protection scope of the present invention.
Embodiment 1
Metallic aluminium 11 parts, crome metal 15 parts, 5 parts, fluorite, metal nickel powder 44 parts; Above-mentioned metallic aluminium particle diameter is 100 orders, crome metal particle diameter is 120 orders, fluorite particle diameter is 120 orders, metal nickel powder particle diameter is 200 orders.
Embodiment 2
Metallic aluminium 20 parts, crome metal 30 parts, 5 parts, fluorite, metal nickel powder 55 parts; Above-mentioned metallic aluminium particle diameter is 150 orders, crome metal particle diameter is 120 orders, fluorite particle diameter is 120 orders, metal nickel powder particle diameter is 1500 orders.
Embodiment 3
Metallic aluminium 17 parts, crome metal 20 parts, 5 parts, fluorite, metal nickel powder 51 parts; Above-mentioned metallic aluminium particle diameter is 200 orders, crome metal particle diameter is 120 orders, fluorite particle diameter is 120 orders, metal nickel powder particle diameter is 150 orders.
Embodiment 4
Metallic aluminium 11 parts, crome metal 33 parts, 5 parts, fluorite, metal nickel powder 55 parts; Above-mentioned metallic aluminium particle diameter is 200 orders, crome metal particle diameter is 150 orders, fluorite particle diameter is 120 orders, metal nickel powder particle diameter is 150 orders.
Embodiment 5
Metallic aluminium 30 parts, crome metal 33 parts, 5 parts, fluorite, metal nickel powder 55 parts; Above-mentioned metallic aluminium particle diameter is 150 orders, crome metal particle diameter is 120 orders, fluorite particle diameter is 120 orders, metal nickel powder particle diameter is 200 orders.
Finally carry out magnetic powder detection, wherein without slag inclusion, incomplete fusion, do not have the weld defects such as crackle to be qualified finished product.
Heap postwelding boats and ships, in weld smooth surface, use weld after 187 days to have no damage vestige.
Claims (9)
1. a flux-cored wire, is characterized in that: described flux-cored wire heap postwelding deposition chemical component weight is than being Cr ︰ Al ︰ Ni=1 ~ 4 ︰ 2 ~ 5 ︰ 71 ~ 78.
2. flux-cored wire according to claim 1, it is characterized in that: the crust of described flux-cored wire is pure nickel band, and its Chinese medicine core is made up of the component of following weight parts ratio: gold belongs to aluminium ︰ gold and belongs to chromium ︰ firefly stone ︰ metal nickel powder=11 ~ 37 ︰ 12 ~ 38 ︰ 4 ~ 7 ︰ 41 ~ 58.
3. flux-cored wire according to claim 2, is characterized in that: described medicine core is made up of the component of following weight parts ratio: Jin Shu Lv ︰ Jin Shu Ge ︰ Ying Shi ︰ metal nickel powder=23 ~ 30 ︰ 15 ~ 30 ︰ 5 ︰ 44 ~ 52.
4. flux-cored wire according to claim 2, is characterized in that: described medicine core is made up of the component of following weight parts ratio: Jin Shu Lv ︰ Jin Shu Ge ︰ Ying Shi ︰ metal nickel powder=25 ︰ 19 ~ 24 ︰ 5 ︰ 50.
5. flux-cored wire according to claim 2, is characterized in that: in described medicine core, the particle diameter of metallic aluminium, crome metal, fluorite and metal nickel powder is respectively: metallic aluminium: 100 ~ 200 orders, crome metal: 100 ~ 150 orders, fluorite: 100 ~ 120 orders, metal nickel powder: 150 ~ 200 orders.
6. flux-cored wire according to claim 2, is characterized in that: in described medicine core, the particle diameter of metallic aluminium, crome metal, fluorite and metal nickel powder is respectively: metallic aluminium: 150 orders, crome metal: 120 orders, fluorite: 120 orders, metal nickel powder: 200 orders.
7. flux-cored wire according to claim 2, is characterized in that: the ratio that the weight of described flux-cored wire Chinese medicine core accounts for flux-cored wire gross weight is 25 ~ 45%.
8. the preparation method of flux-cored wire described in any one of claim 1 ~ 7, it is characterized in that: using pure nickel band as crust raw material, with metallic aluminium, crome metal, fluorite and nickel powder for medicine core component, through nickel strap cutting, drying of deoiling, the dry mixing of medicine core batching, drawing is rolled into flux-cored wire.
9. flux-cored wire according to claim 1 is in reparation, the application made in boats and ships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557351.2A CN104400252A (en) | 2014-10-21 | 2014-10-21 | Flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557351.2A CN104400252A (en) | 2014-10-21 | 2014-10-21 | Flux-cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104400252A true CN104400252A (en) | 2015-03-11 |
Family
ID=52637951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410557351.2A Pending CN104400252A (en) | 2014-10-21 | 2014-10-21 | Flux-cored wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400252A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149812A (en) * | 2015-09-29 | 2015-12-16 | 山东聚力焊接材料有限公司 | Alloy welding wire and manufacturing method thereof |
| CN110049843A (en) * | 2016-12-09 | 2019-07-23 | 西门子股份公司 | CMT technology with flux-cored wire conveying |
| CN111408719A (en) * | 2020-04-07 | 2020-07-14 | 江苏大学 | Material preparation method for preparing ternary alloy powder core wire material with specific filling rate by circular tube method |
| CN113977134A (en) * | 2021-10-11 | 2022-01-28 | 西安理工大学 | Welding wire for butt welding of thick and multiple-layer copper-steel composite plate and preparation and welding method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040079742A1 (en) * | 2002-10-25 | 2004-04-29 | Kelly Thomas Joseph | Nickel-base powder-cored article, and methods for its preparation and use |
| CN101036963A (en) * | 2006-03-16 | 2007-09-19 | 联合工艺公司 | Nickel alloy welding wire |
| CN102513647A (en) * | 2011-12-29 | 2012-06-27 | 上海鸿威硬面技术有限公司 | Process for surfacing welding composite hard-surface nickel-base alloy high-temperature material on surface of wrapper roll |
| CN103612027A (en) * | 2013-12-12 | 2014-03-05 | 攀枝花钢城集团有限公司 | Flux-cored wire and preparation method and application of flux-cored wire |
| CN103658929A (en) * | 2013-12-12 | 2014-03-26 | 攀枝花钢城集团有限公司 | Method for repairing and manufacturing bending roll in surfacing mode |
-
2014
- 2014-10-21 CN CN201410557351.2A patent/CN104400252A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040079742A1 (en) * | 2002-10-25 | 2004-04-29 | Kelly Thomas Joseph | Nickel-base powder-cored article, and methods for its preparation and use |
| CN101036963A (en) * | 2006-03-16 | 2007-09-19 | 联合工艺公司 | Nickel alloy welding wire |
| CN102513647A (en) * | 2011-12-29 | 2012-06-27 | 上海鸿威硬面技术有限公司 | Process for surfacing welding composite hard-surface nickel-base alloy high-temperature material on surface of wrapper roll |
| CN103612027A (en) * | 2013-12-12 | 2014-03-05 | 攀枝花钢城集团有限公司 | Flux-cored wire and preparation method and application of flux-cored wire |
| CN103658929A (en) * | 2013-12-12 | 2014-03-26 | 攀枝花钢城集团有限公司 | Method for repairing and manufacturing bending roll in surfacing mode |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149812A (en) * | 2015-09-29 | 2015-12-16 | 山东聚力焊接材料有限公司 | Alloy welding wire and manufacturing method thereof |
| CN110049843A (en) * | 2016-12-09 | 2019-07-23 | 西门子股份公司 | CMT technology with flux-cored wire conveying |
| CN111408719A (en) * | 2020-04-07 | 2020-07-14 | 江苏大学 | Material preparation method for preparing ternary alloy powder core wire material with specific filling rate by circular tube method |
| CN111408719B (en) * | 2020-04-07 | 2021-12-21 | 江苏大学 | Material preparation method for preparing ternary alloy powder core wire material with specific filling rate by circular tube method |
| CN113977134A (en) * | 2021-10-11 | 2022-01-28 | 西安理工大学 | Welding wire for butt welding of thick and multiple-layer copper-steel composite plate and preparation and welding method thereof |
| CN113977134B (en) * | 2021-10-11 | 2023-03-14 | 西安理工大学 | Welding wire for butt welding of thick and multiple-layer copper-steel composite plate and preparation and welding method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
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| RJ01 | Rejection of invention patent application after publication |