CN107052621A - High rigidity self protection pile-up welding flux core welding wire and preparation method thereof - Google Patents
High rigidity self protection pile-up welding flux core welding wire and preparation method thereof Download PDFInfo
- Publication number
- CN107052621A CN107052621A CN201611084352.5A CN201611084352A CN107052621A CN 107052621 A CN107052621 A CN 107052621A CN 201611084352 A CN201611084352 A CN 201611084352A CN 107052621 A CN107052621 A CN 107052621A
- Authority
- CN
- China
- Prior art keywords
- welding wire
- welding
- medicine core
- high rigidity
- protection pile
- 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
-
- 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
- B23K35/406—Filled tubular wire or rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention proposes a kind of high rigidity self protection pile-up welding flux core welding wire and preparation method thereof, including mild-carbon steel strip and medicine core, and flux cored filler is in steel band, and described medicine core includes the component of following mass percent：High carbon ferro-chrome 70~80%, silicomangan 6~10%, almag 1~2%, graphite 0.8~3.6%, boron nitride 0.5~2%, rutile 5~13% and fluorite 2~6%；The ratio that medicine core accounts for welding wire gross weight is 45~55%.Preparation method：(1) mild steel steel band is rolled into U-shaped using molding roller, be then added to medicine core material in U-lag by the 45~55% of welding wire gross weight by dust feeder；(2) U-lag is healed up, make medicine core parcel wherein, by wire drawing die, by road drawing, tube reducing, its diameter is reached 2.40~4.10mm, obtain final products.The flux-cored wire has high hardness and wear resistance energy.
Description
Technical field
The invention belongs to welding material of metal technical field, and in particular to a kind of high rigidity self protection pile-up welding flux core welding wire and
Its preparation method.
Background technology
There is the carbide of high rigidity there is provided excellent wearability in rich chromium cast iron organization internal, in addition with low cost, because
This is in mine, machinery.The field such as cement and metallurgy obtains extensive use.Particularly, rich chromium cast iron structure is divided into hypoeutectic, is total to
It is brilliant and hypereutectic three kinds.Primary carbide containing a large amount of isolated high rigidity in wherein hypereutectic tissue, resistance to low stress abrasion energy
Power is more protruded.One is manufactured traditional rich chromium cast iron using casting method, but can only obtain carbon containing, chromium content phase using the method
To relatively low hypoeutectic or eutectic structure.If continuing to increase carbon, chromium content, it is intended to when forming hypereutectic tissue, meeting in casting
Unavoidably produce the defects such as loose, shrinkage cavity, fire check.
Using advanced technique for overlaying, can make up casting method can not obtain hypereutectic shortcoming, obtain flawless mistake
High carbon ferro-chrome is added in eutectic rich chromium cast iron hardfacing alloy, its medicine core, to ensure that containing higher carbon, chromium in postwelding tissue contains
Amount, so that rich chromium cast iron hardfacing alloy has more preferably anti-wear performance.As Beijing University of Technology invents《High cracking resistance is wear-resisting
High-chromium cast iron-type flux-cored wire》(200510127968.1), its high carbon ferro-chrome addition 40~60%, its hardness range
HRC56~60；Tianjin bridge is invented《A kind of rich chromium cast iron open arc flux-cored wire and its preparation》(the patent No.
201110446957.5), its high carbon ferro-chrome addition 40~60%, its hardness range HRC60~61.It can be seen that, addition is at high proportion
High carbon ferro-chrome component, be obtain high carbon and chromium chemical composition, and then formed containing more primary carbides tissue, so as to have
The key of standby more high-wearing feature.
By analysis, existing Patents are found both at home and abroad, there is no at present on medicine core medium high carbon ferrochrome addition 70~
80% and the very high flux-cored wire report of hardness.Its reason is that the development difficulty of self-protection flux-cored wire is larger, past
Self-shield effect is realized toward more slag making gas-forming agent is needed so that medicine core limited space.
The content of the invention
The present invention proposes a kind of high rigidity self protection pile-up welding flux core welding wire, the flux-cored wire have high hardness with it is wear-resisting
Performance.
The technical proposal of the invention is realized in this way：
A kind of high rigidity self protection pile-up welding flux core welding wire, including mild-carbon steel strip and medicine core, flux cored filler are described in steel band
Medicine core include the component of following mass percent：High carbon ferro-chrome 70~80%, silicomangan 6~10%, almag 1~
2%th, graphite 0.8~3.6%, boron nitride 0.5~2%, rutile 5~13% and fluorite 2~6%；Medicine core accounts for welding wire gross weight
Ratio be 45~55%.
Further, the high carbon ferro-chrome phosphorus content is 9~10wt%, and chrome content is 60~70wt%, and remaining is iron.
Further, the mild-carbon steel strip is H08A carbon steel steel bands.
Further, the rutile is the rutile after 400~480 DEG C are toasted.
It is a further object to provide a kind of preparation method of high rigidity self protection pile-up welding flux core welding wire, including with
Lower step：
(1) mild steel steel band is rolled into U-shaped using molding roller, it is then by dust feeder that medicine core material is total by welding wire
The 45~55% of weight are added in U-lag；
(2) U-lag is healed up, make medicine core parcel wherein, by wire drawing die, by road drawing, tube reducing, finally reach its diameter
To 2.40~4.10mm, final products are obtained.
Each component main function is as follows in above-mentioned medicine core：
High carbon ferro-chrome：Its composition is the transition alloy elements Cr into deposited metal, and provides C element, with welding process
Middle formation carbide anti-abrasive hard tissue.
Silicomangan：Appropriate element silicon is added in formula to be helped to improve appearance of weld.
Almag：Deoxidation, fixed nitrogen.
Graphite：Deoxidation, C element is provided into molten bath.
Boron nitride：Improve molten bath mobility and appearance of weld, improve each metal fluidity.And it is hard to advantageously form boron carbon
Matter phase, further improves the volume fraction of hard phase and the hardness of deposited metal.
Rutile：Used as slag former, the addition of strict control slag former can be thinned postwelding skull, be conducive to
The effusion of gas in molten bath, reduces stomata quantity, improves the deposition rate of welding wire.
Fluorite：Stable electric arc, improves molten bath mobility.
Beneficial effect of the present invention：
1st, the high carbon ferro-chrome addition in the present invention is 70~80% (more slightly higher than prior art 60%), is closed by silicomanganese
Gold, almag, graphite, boron nitride, the rational allocation of rutile and fluorite, successfully solve the problems, such as the self-shield of welding wire, keep away
Exempt from the generation of the defects such as stomata, improve the hardness (68~72HRC) of hardfacing alloy.
2nd, any noble element is not added because high carbon ferro-chrome is cheap, and in medicine core, self protection pile-up welding flux core welding wire
Manufacturing cost is substantially reduced.
Embodiment
Embodiment 1
Medicine core is prepared by following quality：High carbon ferro-chrome 80g, silicomangan 9.5g, almag 1g, graphite 2g, nitrogen
Change boron 0.5g, rutile 5g and fluorite 2g.The powder taken passes through the sieve of 80 mesh.Taken various powder are inserted into mixed powder machine
It is interior, mix 40 minutes, in the H08A carbon steel steel band grooves for the 16 × 0.3mm for then mixed-powder being added U-shaped, filling rate is
55%.U-lag is healed up again, makes medicinal powder parcel wherein.Then make its respectively by a diameter of 4.10mm, 3.80mm, 3.45mm,
One or more in 3.15mm, 2.85mm, 2.60mm, 2.40mm wire drawing die, by road drawing, tube reducing, finally obtain diameter
For 2.40~4.10mm welding wire product.Welding current is 280~400A, and weldingvoltage is 28~36V, and speed of welding is
2.4m/min.Deposited metal hardness and wearability are shown in Table 1.
Embodiment 2
Medicine core is prepared by following quality：High carbon ferro-chrome 76g, silicomangan 8g, almag 2g, graphite 0.8g, nitrogen
Change boron 1.2g, rutile 6g and fluorite 6g.The powder taken passes through the sieve of 80 mesh.Taken various powder are inserted into mixed powder machine
It is interior, mix 40 minutes, in the H08A carbon steel steel band grooves for the 16 × 0.3mm for then mixed-powder being added U-shaped, filling rate is
50%.U-lag is healed up again, makes medicinal powder parcel wherein.Then make its respectively by a diameter of 4.10mm, 3.80mm, 3.45mm,
One or more in 3.15mm, 2.85mm, 2.60mm, 2.40mm wire drawing die, by road drawing, tube reducing, finally obtain diameter
For 2.40~4.10mm welding wire product.Welding current is 280~400A, and weldingvoltage is 28~36V, and speed of welding is
2.4m/min.Deposited metal hardness and wearability are shown in Table 1.
Embodiment 3
Medicine core is prepared by following quality：High carbon ferro-chrome 70g, silicomangan 10g, almag 1g, graphite 3.6g, nitrogen
Change boron 1.2g, rutile 10g and fluorite 4.2g.The powder taken passes through the sieve of 80 mesh.Taken various powder are inserted mixed
In powder machine, mix 40 minutes, in the H08A carbon steel steel band grooves for the 16 × 0.3mm for then mixed-powder being added U-shaped, filling rate is
45%.U-lag is healed up again, makes medicinal powder parcel wherein.Then make its respectively by a diameter of 4.10mm, 3.80mm, 3.45mm,
One or more in 3.15mm, 2.85mm, 2.60mm, 2.40mm wire drawing die, by road drawing, tube reducing, finally obtain diameter
For 2.40~4.10mm welding wire product.Welding current is 280~400A, and weldingvoltage is 28~36V, and speed of welding is
2.4m/min.Deposited metal hardness and wearability are shown in Table 1.
Embodiment 4
Hardness uses HR-150A Rockwell apparatuses, and load 150Kg takes 5 point hardnesses to each test specimens, calculates average
Hardness number.
Wear test uses MLS-225 type wet type rubber foot wheel abrasion testers.
The overlay cladding of each embodiment is cut into five sizes for 57 × 25 × 6mm Wear specimens.Wear test parameter is as follows：
Rubber wheel diameter：178mm, rubber wheel speed：240 revs/min, rubber wheel hardness：70 (Shao Er hardness), load：10Kg, rubber wheel
Revolution：1000 turns of pre-grinding, formal test turns 1000 turns, abrasive material：The quartz sand of 40~70 mesh.The anti-wear performance of deposited metal is with just
The weight loss of formula abrasion is weighed.The beaker of acetone soln is filled testing forward and backward insert sample every time, it is clear in ultrasonic wave
Wash in instrument and clean 3~5 minutes, record of being weighed after dry.Experiment Q235 steel sample as a comparison, contrast piece weight loss and measuring piece
The relative wear resistance ε for being used for built-up welding sample of weight loss.
Each embodiment deposited metal hardness of table 1 and wearability
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (5)
1. a kind of high rigidity self protection pile-up welding flux core welding wire, including mild-carbon steel strip and medicine core, flux cored filler is in steel band, its feature
It is, described medicine core includes the component of following mass percent：High carbon ferro-chrome 70~80%, silicomangan 6~10%, magnalium
Alloy 1~2%, graphite 0.8~3.6%, boron nitride 0.5~2%, rutile 5~13% and fluorite 2~6%；Medicine core accounts for welding wire
The ratio of gross weight is 45~55%.
2. high rigidity self protection pile-up welding flux core welding wire according to claim 1, it is characterised in that the high carbon ferro-chrome is carbon containing
Measure as 9~10wt%, chrome content is 60~70wt%, and remaining is iron.
3. high rigidity self protection pile-up welding flux core welding wire according to claim 1, it is characterised in that the mild-carbon steel strip is
H08A carbon steel steel bands.
4. high rigidity self protection pile-up welding flux core welding wire according to claim 1, it is characterised in that the rutile is process
Rutile after 400~480 DEG C of bakings.
5. the preparation method of high rigidity self protection pile-up welding flux core welding wire as claimed in claim 1, it is characterised in that including following
Step：
(1) mild steel steel band is rolled into U-shaped using molding roller, medicine core material is then pressed by welding wire gross weight by dust feeder
45~55% are added in U-lag；
(2) U-lag is healed up, make medicine core parcel wherein, by wire drawing die, by road drawing, tube reducing, finally reach its diameter
2.40~4.10mm, obtains final products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084352.5A CN107052621A (en) | 2016-11-30 | 2016-11-30 | High rigidity self protection pile-up welding flux core welding wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611084352.5A CN107052621A (en) | 2016-11-30 | 2016-11-30 | High rigidity self protection pile-up welding flux core welding wire and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107052621A true CN107052621A (en) | 2017-08-18 |
Family
ID=59618756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611084352.5A Pending CN107052621A (en) | 2016-11-30 | 2016-11-30 | High rigidity self protection pile-up welding flux core welding wire and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107052621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530958A (en) * | 2018-07-11 | 2019-03-29 | 江苏科技大学 | A kind of low cost Hadfield steel self-protection flux-cored wire |
| CN113245746A (en) * | 2021-04-26 | 2021-08-13 | 郑州大学 | Copper-based flux-cored solder wire with easy preparation, strong wettability and high brazing seam strength |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU585018A1 (en) * | 1976-07-05 | 1977-12-25 | Всесоюзный конструкторско-технологический институт строительного и дорожного машиностроения | Composition for core wire electrode |
| CN102886620A (en) * | 2012-10-25 | 2013-01-23 | 银锐明 | Nitrogen and boron alloying high tenacity hardfacing flux-cored wire |
| CN106001994A (en) * | 2016-07-28 | 2016-10-12 | 江苏科技大学 | Flux-cored wire capable of enhancing welding partition continuous self-protection effect and preparation method thereof |
| CN106001995A (en) * | 2016-07-28 | 2016-10-12 | 江苏科技大学 | Complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire |
| CN106112303A (en) * | 2016-07-28 | 2016-11-16 | 江苏科技大学 | A kind of multicomponent nitride Strengthening and Toughening self protection pile-up welding flux core welding wire and preparation method thereof |
-
2016
- 2016-11-30 CN CN201611084352.5A patent/CN107052621A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU585018A1 (en) * | 1976-07-05 | 1977-12-25 | Всесоюзный конструкторско-технологический институт строительного и дорожного машиностроения | Composition for core wire electrode |
| CN102886620A (en) * | 2012-10-25 | 2013-01-23 | 银锐明 | Nitrogen and boron alloying high tenacity hardfacing flux-cored wire |
| CN106001994A (en) * | 2016-07-28 | 2016-10-12 | 江苏科技大学 | Flux-cored wire capable of enhancing welding partition continuous self-protection effect and preparation method thereof |
| CN106001995A (en) * | 2016-07-28 | 2016-10-12 | 江苏科技大学 | Complex nitride and boride synergetic enhancement self-protection bead weld flux-cored wire |
| CN106112303A (en) * | 2016-07-28 | 2016-11-16 | 江苏科技大学 | A kind of multicomponent nitride Strengthening and Toughening self protection pile-up welding flux core welding wire and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530958A (en) * | 2018-07-11 | 2019-03-29 | 江苏科技大学 | A kind of low cost Hadfield steel self-protection flux-cored wire |
| CN113245746A (en) * | 2021-04-26 | 2021-08-13 | 郑州大学 | Copper-based flux-cored solder wire with easy preparation, strong wettability and high brazing seam strength |
| CN113245746B (en) * | 2021-04-26 | 2022-06-24 | 郑州大学 | Copper-based flux-cored solder wire with easy preparation, strong wettability and high brazing seam strength |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103753052B (en) | A kind of low cost high rigidity self protection pile-up welding flux core welding wire | |
| CN103785967B (en) | The hardfacing of a kind of niobium titanium complex intensifying is used without slag self-protection flux-cored wire | |
| CN104708234B (en) | Iron-based self-protection flux-cored wire, surfacing alloy manufactured with iron-based self-protection flux-cored wire and method for manufacturing iron-based self-protection flux-cored wire | |
| CN103769770B (en) | The hardfacing of a kind of vanadium titanium niobium complex intensifying is used without slag self-protection flux-cored wire | |
| CN103753053B (en) | Few and the splashing particle size of splashing quantity little without slag self protection pile-up welding flux core welding wire | |
| CN106112303B (en) | A kind of multicomponent nitride Strengthening and Toughening self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN106001995B (en) | A kind of multicomponent nitride and boride collaboration enhancing self protection pile-up welding flux core welding wire | |
| CN106041356B (en) | Good self-protection flux-cored wire of a kind of energy-efficient and overlaying shaping and preparation method thereof | |
| CN101524789B (en) | Sleeve-friendly wear-resistant strip flux-cored wire | |
| CN106695174A (en) | Wear-resistant self-protection flux-cored wire and preparation method thereof | |
| CN106112302B (en) | A kind of polynary control amount Dispersed precipitate hard phase enhancing self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN103785971B (en) | A kind of built-up welding of ultralow stomata sensitivity is without slag self-protection flux-cored wire | |
| CN105149816A (en) | Self-shielded flux-cored wire for cement roller build-up welding | |
| CN107052621A (en) | High rigidity self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN106141484B (en) | A kind of very high content vanadium is modified self-protecting flux-cored wire for overlaying welding and preparation method thereof | |
| CN106141488B (en) | A kind of self-protection flux-cored wire for adding more granularity drug core components and preparation method thereof | |
| CN106041357B (en) | A kind of nickel toughening high-chromium cast iron-type self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN106041358B (en) | A kind of fabricated in situ WC and W6C-type carbide enhancing self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN106141495B (en) | A kind of polynary boride doping vario-property self-protecting flux-cored wire for hardfacing and preparation method thereof | |
| CN106141483B (en) | A kind of spontaneous large volume fraction boron-carbide reinforced wear-resistant built-up welding self-protection flux-cored wire and preparation method thereof | |
| CN106001994B (en) | A kind of flux-cored wire for enhancing the welding continuous self-shield effect of subregion and preparation method thereof | |
| CN106166654B (en) | A kind of very high content niobium Strengthening and Toughening self-protecting flux-cored wire for overlaying welding and preparation method thereof | |
| CN103785970B (en) | A kind of vanadium niobium complex intensifying hardfacing is with without slag self-protection flux-cored wire | |
| CN106238964B (en) | A kind of titanium is modified high-chromium cast iron-type self protection pile-up welding flux core welding wire and preparation method thereof | |
| CN106112304B (en) | A kind of manganese Strengthening and Toughening high chromium cast iron self protective build-up welding cored welding wire and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |