CN101920413B - Surfacing and repairing flux-cored wire of hot forging die - Google Patents
Surfacing and repairing flux-cored wire of hot forging die Download PDFInfo
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- CN101920413B CN101920413B CN 201010185923 CN201010185923A CN101920413B CN 101920413 B CN101920413 B CN 101920413B CN 201010185923 CN201010185923 CN 201010185923 CN 201010185923 A CN201010185923 A CN 201010185923A CN 101920413 B CN101920413 B CN 101920413B
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- cored wire
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Abstract
The invention discloses a surfacing and repairing flux-cored wire of a hot forging die, which belongs to the welding material industry. The flux-cored wire comprises an outer skin and a flux core, wherein the flux core comprises the following components in percentage by mass: 30 to 50 percent of metal chromium (Cr), 10 to 25 percent of ferromolybdenum (Mo-Fe), 3 to 9 percent of metal manganese (Mn), 3 to 10 percent of nickel powder (Ni), 2 to 8 percent of rare earth oxide (ReY), 1 to 4 percent of tungsten carbide (CW), 0.3 to 2 percent of ferrovanadium (V-Fe) and the balance of slag former. In the flux-cored wire, the filled flux accounts for 20 to 30 percent of the total mass of the wire. The flux-cored wire is formed by rolling H08A thin steel strip with a molding roller to form a U-groove, drying the flux at 120 DEG C, filling the flux into the U-groove after uniform mixing, rolling to form a tube and drawing. When the flux-cored wire of the invention is used for surfacing and repairing ineffective dies, a die surfaced and repaired by the surfacing and repairing flux-cored wire can be used more than three times longer than a die surfaced and repaired by the conventional material; the surfacing efficiency is high and a surfacing process has high performance.
Description
Technical field
The invention belongs to technical field of welding materials, relate to a kind of flux-cored wire that is applicable to hot-forging die especially, it has welding usefulness height, characteristics that processing performance is good.Be satisfied with forging Hot and make steel 5CrNiMo, 5CrMnMo, 5Cr
2NiMoVSi, 3Cr
2W
8The mould repair of V, H11, H13.
Background technology
Extraordinary flux-cored wire, be mainly used in the built-up welding of hot-work die, for forging die, substantially belong to disposable consumption, produced variation for the foundation that consumes with regard to the size and dimension that is mold cavity, failure state (be full of cracks, aging, wearing and tearing, heap collapse, overproof) has taken place and often under the situation that this state occurs, will make the quality requirement of product not reach technological standards, and majority is greatly scrapped.Big because of consumption, the production cycle is long, cost is high, many enterprises are based on cost consideration and production capacity, all take failure site is adopted the special welding rod built-up welding, and this method labour intensity is big, processing performance is difficult to satisfy in the welding, work efficiency reduces, and welding rod consumption is big, the situation for scarce weldering and leakage weldering in the built-up welding, operating personnel are difficult to hold, and exist built-up welding defective (slag inclusion, pore, sealing-off).In addition, it is poor also to exist operating environment, is principal element with noise, high temperature and flue dust, and operating personnel are existed than major injury.So, demand urgently adopting a kind of novel flux-cored wire to substitute and address this problem.With the market survey situation analysis, market prospects are big, good development prospect, meet national industrial policies, low energy consumption, pollution-free, labour intensity is low, the usefulness height, according to indicated in the scientific and technological information, this flux-cored wire will accord with technology characteristics and the performance of forging die fully, U.S. in the world, Eastern Europe, developed countries such as Japan are extensive use of and develop rapidly, and China is at present except Beijing, Tianjin, minority manufacturer production flux-cored wires such as Nanjing, produce to be used for extraordinary flux-cored wire that the mould built-up welding repairs phoenix feathers and unicorn horns especially, so it is all very important to research and develop meaning and the effect of this flux-cored wire, belongs to high-tech, product.
Summary of the invention
The present invention is directed to the problem that exists in the mould repair, a kind of surfacing and repairing flux-cored wire of hot forging die is provided, this welding wire has the welding efficiency height, welding technological properties is good, has the serviceability of high temperature resistance, shock resistance, anti-oxidant and extremely strong wearability simultaneously, is better than traditional product.
A kind of surfacing and repairing flux-cored wire of hot forging die, formed by crust and medicine core, the component that it is characterized in that the medicine core is by mass percentage: crome metal (Cr) 30-50%, molybdenum-iron (Mo-Fe) 10-25%, manganese metal (Mn) 3-9%, nickel powder (Ni) 3-10%, rare earth oxide (ReY) 2-8%, tungsten carbide (CW) 1-4%, vanadium iron (V-Fe) 0.3-2%, all the other constitute for slag former; Crust adopts the H08A steel, and the medicine core is 20-30% with respect to the filling rate of welding wire gross mass.
With flux-cored wire built-up welding reparation inefficacy mould of the present invention, improve more than 3 times than traditional material built-up welding repairing mould service life and welding usefulness height, welding technological properties good.
The specific embodiment
Embodiment 1: with 23.6 gram slag formers, 35 gram crome metals (Cr), 24 gram molybdenum-irons (Mo-Fe), 5 gram manganese metals (Mn), 8 gram nickel powders (Ni), 3 gram rare earth oxides (ReY), 1 gram tungsten carbide (CW), 0.4 gram vanadium iron (V-Fe), dry and mix in 120 ℃, the medicinal powder filling rate is 25%, be processed into U-shaped groove with the thin steel band of H08A by molding roller, above-mentioned medicinal powder is inserted in the U-shaped groove, roll into tubulose, stand-by through drawing and moulding.
Embodiment 2: with 19.5 gram slag formers, 46 gram crome metals (Cr), 12 gram molybdenum-irons (Mo-Fe), 7 gram manganese metals (Mn), 4 gram nickel powders (Ni), 7 gram rare earth oxides (ReY), 3 gram tungsten carbides (CW), 1.5 gram vanadium iron (V-Fe), dry and mix in 120 ℃, the medicinal powder filling rate is 25%, be processed into U-shaped groove with the thin steel band of H08A by molding roller, above-mentioned medicinal powder is inserted in the U-shaped groove, roll into tubulose, stand-by through drawing and moulding.
Embodiment 3: with 21.2 gram slag formers, 42 gram crome metals (Cr), 18 gram molybdenum-irons (Mo-Fe), 5 gram manganese metals (Mn), 6 gram nickel powders (Ni), 5 gram rare earth oxides (ReY), 2 gram tungsten carbides (CW), 0.8 gram vanadium iron (V-Fe), dry and mix in 120 ℃, the medicinal powder filling rate is 25%, be processed into U-shaped groove with the thin steel band of H08A by molding roller, above-mentioned medicinal powder is inserted in the U-shaped groove, roll into tubulose, stand-by through drawing and moulding.
Among the above embodiment, flux-cored wire is 20-30% with respect to the medicinal powder filling rate of welding wire gross mass.Further specialize, flux-cored wire is 25% with respect to the medicinal powder filling rate of welding wire gross mass.
Implementation result sees Table 1
Table 1:
The similar imported product of Comparative Examples illustrates that it is 2.8～3.06 times of external like product service life that the every cover of forging mold that we repair forges number of packages.
Claims (3)
1. surfacing and repairing flux-cored wire of hot forging die, formed by crust and medicine core, the component that it is characterized in that the medicine core is by mass percentage: crome metal 30-50%, molybdenum-iron 10-25%, manganese metal 3-9%, nickel powder 3-10%, rare earth oxide 2-8%, tungsten carbide 1-4%, vanadium iron 0.3-2%, all the other constitute for slag former; Crust adopts the H08A steel, and the medicine core is 20-30% with respect to the filling rate of welding wire gross mass.
2. surfacing and repairing flux-cored wire of hot forging die according to claim 1, the component that it is characterized in that the medicine core is by mass percentage: crome metal is 35-45%, molybdenum-iron is 10-25%, manganese metal is 5-9%, nickel powder is 4-8%, and rare earth oxide is 3-7%, and tungsten carbide is 1-3%, vanadium iron is 0.4-1.5%, and surplus is slag former.
3. surfacing and repairing flux-cored wire of hot forging die according to claim 1 is characterized in that the medicine core is 25% with respect to the filling rate of welding wire gross mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185923 CN101920413B (en) | 2010-05-16 | 2010-05-16 | Surfacing and repairing flux-cored wire of hot forging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010185923 CN101920413B (en) | 2010-05-16 | 2010-05-16 | Surfacing and repairing flux-cored wire of hot forging die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920413A CN101920413A (en) | 2010-12-22 |
| CN101920413B true CN101920413B (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010185923 Expired - Fee Related CN101920413B (en) | 2010-05-16 | 2010-05-16 | Surfacing and repairing flux-cored wire of hot forging die |
Country Status (1)
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| CN (1) | CN101920413B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9869132B2 (en) | 2015-02-04 | 2018-01-16 | National Oilwell Varco, L.P. | Wellsite hardfacing with particle distribution and method of using same |
| CN104668819B (en) * | 2015-02-12 | 2016-08-10 | 西安理工大学 | 2205 phase stainless steel use metal flux-cored wires and preparation method thereof |
| US9909395B2 (en) | 2015-09-21 | 2018-03-06 | National Oilwell DHT, L.P. | Wellsite hardfacing with distributed hard phase and method of using same |
| CN105081610B (en) * | 2015-09-22 | 2017-03-08 | 山东大学 | It is exclusively used in the metal powder core solder wire of hot-work die reparation |
| CN105171275B (en) * | 2015-10-16 | 2017-08-29 | 天津市永昌焊丝有限公司 | A kind of high rigidity gas-shielded overlaying flux cored soldering wire repaired for hot-forging mould |
| CN105665959A (en) * | 2016-03-30 | 2016-06-15 | 北京工业大学 | Overlaying flux-cored wire for welding and repairing die-casting dies |
| CN108747082B (en) * | 2018-06-15 | 2020-07-10 | 武汉科技大学 | Wear-resistant flux-cored wire and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1714987A (en) * | 2005-07-06 | 2006-01-04 | 湘潭大学 | High chromium rust free, wear resistance cored welding wire |
| CN100999041A (en) * | 2006-12-28 | 2007-07-18 | 燕山大学 | Series flux cord welding rod used for pile-up welding reparing and remanufacturing large type medium high carbon steel parts |
| JP2007289965A (en) * | 2006-04-20 | 2007-11-08 | Kobe Steel Ltd | Flux-cored wire for gas shielded arc welding and welding method |
| JP2007296535A (en) * | 2006-04-27 | 2007-11-15 | Kobe Steel Ltd | Gas-shielded arc welding flux-cored wire and welding method |
| CN101224527A (en) * | 2008-02-04 | 2008-07-23 | 湘潭大学 | High hardness ferritic stainless steel wearable surfacing flux-cored wire |
-
2010
- 2010-05-16 CN CN 201010185923 patent/CN101920413B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1714987A (en) * | 2005-07-06 | 2006-01-04 | 湘潭大学 | High chromium rust free, wear resistance cored welding wire |
| JP2007289965A (en) * | 2006-04-20 | 2007-11-08 | Kobe Steel Ltd | Flux-cored wire for gas shielded arc welding and welding method |
| JP2007296535A (en) * | 2006-04-27 | 2007-11-15 | Kobe Steel Ltd | Gas-shielded arc welding flux-cored wire and welding method |
| CN100999041A (en) * | 2006-12-28 | 2007-07-18 | 燕山大学 | Series flux cord welding rod used for pile-up welding reparing and remanufacturing large type medium high carbon steel parts |
| CN101224527A (en) * | 2008-02-04 | 2008-07-23 | 湘潭大学 | High hardness ferritic stainless steel wearable surfacing flux-cored wire |
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| CN101920413A (en) | 2010-12-22 |
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Granted publication date: 20130717 Termination date: 20200516 |