CN109226994A - A kind of hard-face overlaying welding flux-cored wire - Google Patents
A kind of hard-face overlaying welding flux-cored wire Download PDFInfo
- Publication number
- CN109226994A CN109226994A CN201811289579.2A CN201811289579A CN109226994A CN 109226994 A CN109226994 A CN 109226994A CN 201811289579 A CN201811289579 A CN 201811289579A CN 109226994 A CN109226994 A CN 109226994A
- Authority
- CN
- China
- Prior art keywords
- welding
- hard
- cored wire
- wire
- flux
- 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
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
Abstract
A kind of hard-face overlaying welding flux-cored wire, belongs to surface reconditioning field of engineering technology.Flux-cored wire composition range by mass percentage are as follows: C:1.0%-2.0%, Si:0.4%-1.5%, Mn:0.4%-1.5%, Cr:4.5%-9.5%, Nb:2.0%-5.5%, Mo:2.0%-5.5%, W:2.0%-4.0%, V:0.5%-2.0%, remaining is Fe.The advantage is that welding wire has welding technological properties excellent, appearance of weld is excellent, and the de- slag of welding wire is excellent, overlay cladding pore-free, 5 layers of flawless of built-up welding, the mechanical equipment excellent wear-resisting property of Bead weld repair.
Description
Technical field
The invention belongs to surface reconditioning field of engineering technology, in particular to a kind of hard-face overlaying welding flux-cored wire.
Background technique
It is especially the mechanical equipment used under high temperature high corrosion atmosphere in the presence of a harsh environment, it is desirable that abrading section has higher
Service life, in this case it is required that abrading section high temperature hardness with higher and preferable toughness, working face are not present
The defects of loose, crackle, do not occur peeling chip off-falling in use.For the service life for improving equipment under adverse circumstances, hair
A kind of submerged-arc overlaying welding flux-cored wire of high alloy, surfacing hardness HRC56-62 is illustrated.
The alloy system that the high rigidity submerged-arc overlaying welding flux-cored wire of country surfacing hardness HRC56-62 uses at present has
Cr13NiMoV, CrMoV and CrMoWV etc., the overlay cladding hardness with higher of the above alloy series solder wire and preferable toughness, but
Wearability under the adverse circumstances of high temperature high corrosion is general, and the service life of equipment of Bead weld repair is relatively low.
For the service life for improving prosthetic appliance, a kind of submerged arc overlay welding welding wire that alloy system is CrNbMoWV, heap have been invented
Layer selects high phosphorus content, and phosphorus content 1.0-2.0% adds a variety of strong carbide shapes for the crack resistance for improving overlay cladding
At element nb, Mo, W, V, a variety of carbide are formed, carbide dispersion is precipitated, and forms the tiny tissue of crystal grain, is conducive to improve heap
The cracking resistance of layer.Since overlay cladding contains a large amount of carbide, carbide has very high microhardness, thus built-up welding
Layer has very excellent wear-resisting property.
Summary of the invention
The purpose of the present invention is to provide a kind of hard-face overlaying welding flux-cored wires, solve submerged arc overlay welding welding wire wear-resisting property
The problem of difference.Improve the service life of Bead weld repair part.
It solves the basic ideas of technical problem: adding high level carbon and a variety of alloying elements in welding wire, improve overlay cladding
Hardness, to improve the wear-resisting property of overlay cladding.The alloy for adding a variety of carbides, the disperse in deposited metal
It is precipitated, refines crystal grain, improve the cracking resistance of overlay cladding.
A kind of hard-face overlaying welding flux-cored wire, by mass percentage composition range are as follows: C:1.0%-2.0%, Si:0.4%-
1.5%, Mn:0.4%-1.5%, Cr:4.5%-9.5%, Nb:2.0%-5.5%, Mo:2.0%-5.5%, W:2.0%-
4.0%, V:0.5%-2.0%, remaining is Fe.
Submerged-arc overlaying welding flux-cored wire is provided using the present invention, is welded in following weld procedure specification: welding current 300-
500A, weldingvoltage 28-32V, surfacing hardness HRC56-62.
The key problem in technology that the present invention solves the problems, such as is to select a variety of carbide former Nb, Mo, W, V, forms a variety of carbon
Compound, carbide dispersion are precipitated, and form the tiny tissue of crystal grain, are conducive to the cracking resistance for improving overlay cladding.Due to overlay cladding
Containing a large amount of carbide, carbide has very high microhardness, thus overlay cladding has very excellent wear-resisting property.
It is an advantage of the current invention that welding wire has welding technological properties excellent, appearance of weld is excellent, and the de- slag of welding wire is excellent,
Overlay cladding pore-free, 5 layers of flawless of built-up welding, the mechanical equipment excellent wear-resisting property of Bead weld repair.Welding wire provided by the invention can
For bearing the Bead weld repair of the mechanical equipment of certain impact load.
Specific embodiment
Embodiment 1
A kind of hard-face overlaying welding flux-cored wire, by mass percentage composition range are as follows: C:1.1%, Si:0.45%, Mn:
0.65%, Cr:4.9%, Nb:2.9%, Mo:2.8%, W:2.7%, V:0.6%, remaining is Fe.The above welding wire, use are following
Specification welding: welding current 380A, weldingvoltage 30V.Overlay cladding flawless, surfacing hardness HRC57, overlay cladding have excellent
Good wear-resisting property.
Embodiment 2
A kind of hard-face overlaying welding flux-cored wire, by mass percentage composition range are as follows: C:1.6%, Si:0.75%, Mn:
1.45%, Cr:8.9%, Nb:3.9%, Mo:3.5%, W:3.4%, V:0.9%, remaining is Fe.The above welding wire, use are following
Specification welding: welding current 380A, weldingvoltage 30V.Overlay cladding flawless, surfacing hardness HRC61, overlay cladding have excellent
Good wear-resisting property.
Embodiment 3
A kind of hard-face overlaying welding flux-cored wire, by mass percentage composition range are as follows: C:1.5%, Si:0.45%, Mn:
0.65%, Cr:5.9%, Nb:1.9%, Mo:1.8%, W:0.7%, V:0.2%, remaining is Fe.The above welding wire, use are following
Specification welding: welding current 380A, weldingvoltage 30V.Welding wire welding overlay cladding is cracked, surfacing hardness HRC57, heap
Layer wear-resisting property is poor, will appear peeling phenomenon in the equipment use process of Bead weld repair.
Claims (2)
1. a kind of hard-face overlaying welding flux-cored wire, which is characterized in that composition range by mass percentage are as follows: C:1.0%-2.0%,
Si:0.4%-1.5%, Mn:0.4%-1.5%, Cr:4.5%-9.5%, Nb:2.0%-5.5%, Mo:2.0%-5.5%, W:
2.0%-4.0%, V:0.5%-2.0%, remaining is Fe.
2. welding wire according to claim 1, which is characterized in that the weld procedure specification of the welding wire are as follows: welding current
300-500A, weldingvoltage 28-32V, surfacing hardness HRC56-62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289579.2A CN109226994A (en) | 2018-10-31 | 2018-10-31 | A kind of hard-face overlaying welding flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811289579.2A CN109226994A (en) | 2018-10-31 | 2018-10-31 | A kind of hard-face overlaying welding flux-cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109226994A true CN109226994A (en) | 2019-01-18 |
Family
ID=65079996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811289579.2A Pending CN109226994A (en) | 2018-10-31 | 2018-10-31 | A kind of hard-face overlaying welding flux-cored wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109226994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788518A (en) * | 2019-11-05 | 2020-02-14 | 上海欣冈贸易有限公司 | Welding metal material |
| CN111112876A (en) * | 2019-11-28 | 2020-05-08 | 邯郸市永固冶金备件有限公司 | Flux-cored wire |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141994A (en) * | 1980-04-08 | 1981-11-05 | Nippon Steel Corp | Submerged arc overlay welding of high carbon high chromium steel |
| JPS6012296A (en) * | 1983-06-30 | 1985-01-22 | Sumikin Yousetsubou Kk | Composite wire for build-up welding |
| JPS61283489A (en) * | 1985-06-06 | 1986-12-13 | Sumitomo Metal Ind Ltd | Composite wire for build-up welding |
| CN101421073A (en) * | 2006-02-16 | 2009-04-29 | 司多迪公司 | Hard-facing alloys having improved crack resistance |
| CN104785895A (en) * | 2015-05-05 | 2015-07-22 | 合肥东方节能科技股份有限公司 | Submerged arc surfacing manufacturing technology of looper roll for rolling mill |
| CN105057913A (en) * | 2015-07-09 | 2015-11-18 | 苏州优霹耐磨复合材料有限公司 | Hard-face wear resistant open arc welding wire |
| CN107052620A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | Built-up welding high-chromium cast iron-type open arc welding flux cored wire and its application method |
-
2018
- 2018-10-31 CN CN201811289579.2A patent/CN109226994A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141994A (en) * | 1980-04-08 | 1981-11-05 | Nippon Steel Corp | Submerged arc overlay welding of high carbon high chromium steel |
| JPS6012296A (en) * | 1983-06-30 | 1985-01-22 | Sumikin Yousetsubou Kk | Composite wire for build-up welding |
| JPS61283489A (en) * | 1985-06-06 | 1986-12-13 | Sumitomo Metal Ind Ltd | Composite wire for build-up welding |
| CN101421073A (en) * | 2006-02-16 | 2009-04-29 | 司多迪公司 | Hard-facing alloys having improved crack resistance |
| CN104785895A (en) * | 2015-05-05 | 2015-07-22 | 合肥东方节能科技股份有限公司 | Submerged arc surfacing manufacturing technology of looper roll for rolling mill |
| CN105057913A (en) * | 2015-07-09 | 2015-11-18 | 苏州优霹耐磨复合材料有限公司 | Hard-face wear resistant open arc welding wire |
| CN107052620A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | Built-up welding high-chromium cast iron-type open arc welding flux cored wire and its application method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788518A (en) * | 2019-11-05 | 2020-02-14 | 上海欣冈贸易有限公司 | Welding metal material |
| CN111112876A (en) * | 2019-11-28 | 2020-05-08 | 邯郸市永固冶金备件有限公司 | Flux-cored wire |
| CN111112876B (en) * | 2019-11-28 | 2021-10-12 | 邯郸市永固冶金备件有限公司 | Flux-cored wire |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |
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| WD01 | Invention patent application deemed withdrawn after publication |