CN104942466B - A kind of self-shielded welding wire and preparation method thereof - Google Patents
A kind of self-shielded welding wire and preparation method thereof Download PDFInfo
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- CN104942466B CN104942466B CN201510345005.2A CN201510345005A CN104942466B CN 104942466 B CN104942466 B CN 104942466B CN 201510345005 A CN201510345005 A CN 201510345005A CN 104942466 B CN104942466 B CN 104942466B
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- welding wire
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- shielded welding
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- 238000003466 welding Methods 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 35
- 229910001512 metal fluoride Inorganic materials 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000012792 core layer Substances 0.000 claims description 30
- 239000003814 drug Substances 0.000 claims description 30
- 229940079593 drug Drugs 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 21
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- TZHAQDOOIBTFGI-UHFFFAOYSA-N [F].[Li].[Ba] Chemical compound [F].[Li].[Ba] TZHAQDOOIBTFGI-UHFFFAOYSA-N 0.000 claims description 14
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 7
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 7
- 235000013024 sodium fluoride Nutrition 0.000 claims description 7
- 239000011775 sodium fluoride Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 108010038629 Molybdoferredoxin Proteins 0.000 description 1
- ZBHWCYGNOTVMJB-UHFFFAOYSA-N [C].[Cr].[Fe] Chemical compound [C].[Cr].[Fe] ZBHWCYGNOTVMJB-UHFFFAOYSA-N 0.000 description 1
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
-
- 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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to welding wire technology field; especially a kind of self-shielded welding wire and preparation method thereof; pass through the addition to metal fluoride; and the carbon content in raw material composition is defined; and then spatter loss coefficient when reducing welding application; and then waste when avoiding welding rod soldering, also improve the pliability of weld seam；Especially combine the proportion design of each material composition composition, so that reasonable is reached to proportion design, and then meet the application of welding wire in any condition, also it disclosure satisfy that the requirement of intensity, metal coat experiment process is carried out especially under normal temperature and 600 DEG C of hot environment, either normal temperature is still handled under 600 DEG C of hot environment, its hardness (HRC) is enabled to reach more than 60, and the tensile strength of the welding wire prepared has reached more than 310MPa, the elongation having no progeny reaches more than 41%, hardness has reached 31 57HRB, roughness is 0.2 0.5 μm.
Description
Technical field
The present invention relates to welding wire technology field, especially a kind of self-shielded welding wire and preparation method thereof.
Background technology
Hard-face overlaying welding material is broadly divided into three directions at present：One kind is Manual electric welding bar class, and one kind is welding wire class, a kind of
It is band pole welding class, wherein welding wire class resurfacing welding material is divided into welding wire for submerged-arc welding and self-protection flux-cored wire, self-protection flux-cored wire again
It is that one kind does not need adscititious gases or solder flux protection, is a kind of efficient, flux-cored wire of material-saving, low cost, efficiently：Because it is easy to
Realize that without slag, no scarfing cinder problem, continuous welding can be achieved in automation, weld seam；Material-saving：Because it is left that flux-cored wire can save 25%
Right deposited metal；Low cost：Because its undesirable gas or solder flux are protected, so as to reduce production cost, but currently on the market
Resurfacing welding material uses under room temperature environment, and overlaying surface hardness number is extremely difficult to require, in high temperature environments in use, due to material
High-temerature creep easily occurs, causes hardness to reduce, so being just more difficult to reach higher hardness number.
Therefore, there is researcher to combine above-mentioned defect, research, such as Patent No. are made that to self-shielded welding wire field
201010163780.3《A kind of self-protection flux-cored wire》Including steel band and welding agent, welding agent is filled in steel band, and by weight hundred
Divide and be than meter, the composition of welding agent：1~3% aluminium powder, 3~5% rare earth silicon, 1~3% vanadium iron, 50~65% high carbon chromium
Iron, 10~15% niobium powder, 10~20% molybdenum-iron and 2~5% tungsten carbide, the filling rate that welding agent is filled in steel band are 40
~50%.By adjusting the ratio between above-mentioned alloy powder, make satisfaction that all there is higher hardness under condition of different temperatures,
Either under room temperature condition, or there is higher hardness under the conditions of high temperature (up to 600 DEG C), so as to expand hard material
Use occasion, reduce limitation of the workpiece temperature in use to material, reduce the cumbersome work that a variety of welding materials are needed during welding
Sequence.
But nevertheless, condition required when quality and the soldering of self-shielded welding wire of the prior art compared with
For harshness, and then cause self-shielded welding wire application still by limitation, furthermore, in self-shielded welding wire, due to carbon
Content is larger, the defects of still causing as gas protecting welding wire, causes self-shield process to be difficult to protection completely, and then make
Obtain welding process to splash, in turn result in the waste of welding wire soldering and the toughness of weld seam is impacted.
Then, this researcher combines exploration and practice experience for many years, is self-shield on the basis of prior art literature
Welding wire technology field provides a kind of new approaches.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of self-shielded welding wire and its preparation
Method.
It is achieved particular by following technical scheme：
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.003-
0.01%, the composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 3.1-4.5%, metal fluoride 15-20%,
SiO 2 powder 0.7-2.7%, manganese metal 4-8%, metallic nickel 7-9%, magnesium powder 9-13%, surplus ferrochrome and tungsten carbide mix
Compound, wherein ferrochrome：Tungsten carbide is (7-9)：1, and the carbon content 0.009-0.03% in ferrochrome；And drug core layer is filled in skin
Among layer, filling rate 60-73%.
The composition of described drug core layer is according to mass percent meter, its raw material：Aluminium powder 3.9%, metal fluoride 18%,
The mixture of SiO 2 powder 1.5%, manganese metal 5%, metallic nickel 8%, magnesium powder 11%, surplus ferrochrome and tungsten carbide.
Described metal fluoride is to be combined by the one or more in fluorine barium-lithium and magnesium fluoride or sodium fluoride or calcirm-fluoride
Form, wherein content of the fluorine barium-lithium in metal fluoride is 41.3-59.7%.
Described steel band is wide 24mm, and thickness is 0.5mm cold-rolled strip.
In described steel band, include the chemical composition of following weight/mass percentage composition：C：0.003-0.01%, Mn：0.2-
0.5%, Al：0.1-0.3%, Si：0.03-0.07%.
Described ferrochrome, its carbon content are 0.01-0.02%.
The preparation method of above-mentioned self-shielded welding wire, including by drug core layer addition on cortex, and after use cortex parcel, then
It is sent in single lead screw ex truding briquetting machine and is squeezed into cylindrical rod, and a diameter of 0.9-1.3mm of drawing cylindrical rod, you can obtain self-shield
Welding wire.
Described drawing be control temperature be 200-310 DEG C at carry out to cylindrical rod elongate drawing-down processing.
Described drawing is carried out in the case where vacuum is 0.2-0.8MPa.
Compared with prior art, technique effect of the invention is embodied in：
It is defined by the carbon content in the addition to metal fluoride, and raw material composition, and then reduces welding
Using when spatter loss coefficient, and then waste when avoiding welding rod soldering, also improve the pliability of weld seam；Especially combine
The proportion design of each material composition composition so that reasonable is reached to proportion design, and then meets welding wire in any condition
Using, also disclosure satisfy that the requirement of intensity, especially under normal temperature and 600 DEG C of hot environment carry out metal coat experimental station
Reason, either normal temperature is still handled under 600 DEG C of hot environment, enables to its hardness (HRC) to reach more than 60, and
The tensile strength of the welding wire of preparation has reached more than 310MPa, and the elongation having no progeny reaches more than 41%, and hardness has reached 31-
57HRB, roughness are 0.2-0.5 μm.
Therefore deduce that, the welding wire can reduce the requirement to welding wire application environment, reduce required more during welding
Heavy industry sequence, improves operating efficiency.
Embodiment
Limited with reference to specific embodiment technical scheme is further, but claimed
Scope is not only limited to made description.
Embodiment 1
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.003%,
The composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 3.1%, metal fluoride 15%, SiO 2 powder
0.7%, manganese metal 4%, metallic nickel 7%, magnesium powder 9%, the mixture of surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
7：1, and the carbon content 0.009% in ferrochrome；And drug core layer is filled among cortex, filling rate 60%.
Described metal fluoride is formed to be combined by fluorine barium-lithium and magnesium fluoride, and wherein fluorine barium-lithium is in metal fluoride
Content is 41.3%.
Its preparation method is：Including drug core layer is added on cortex, and after use cortex parcel, then it is sent to extruding
Cylindrical rod, and a diameter of 0.9mm of drawing cylindrical rod are squeezed into forming machine, you can obtain self-shielded welding wire.
Embodiment 2
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.01%,
The composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 4.5%, metal fluoride 20%, SiO 2 powder
2.7%, manganese metal 8%, metallic nickel 9%, magnesium powder 13%, the mixture of surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
8：1, and the carbon content 0.03% in ferrochrome；And drug core layer is filled among cortex, filling rate 73%.
Described metal fluoride is formed to be combined by fluorine barium-lithium and sodium fluoride, and wherein fluorine barium-lithium is in metal fluoride
Content is 59.7%.
Described steel band is wide 24mm, and thickness is 0.5mm cold-rolled strip.
Its preparation method is：Including drug core layer is added on cortex, and after use cortex parcel, then it is sent to extruding
Cylindrical rod, and a diameter of 1.3mm of drawing cylindrical rod are squeezed into forming machine, you can obtain self-shielded welding wire.
Wherein drawing be control temperature be 200 DEG C at carry out to cylindrical rod elongate drawing-down processing.
Embodiment 3
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.007%,
The composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 3.9%, metal fluoride 18%, SiO 2 powder
1.5%, manganese metal 5%, metallic nickel 8%, magnesium powder 11%, the mixture of surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
9：1, and the carbon content 0.015% in ferrochrome；And drug core layer is filled among cortex, filling rate 68%.
Described metal fluoride is formed to be combined by fluorine barium-lithium and calcirm-fluoride, and wherein fluorine barium-lithium is in metal fluoride
Content is 48.5%.
Described steel band is wide 24mm, and thickness is 0.5mm cold-rolled strip.
In described steel band, include the chemical composition of following weight/mass percentage composition：C：0.007%, Mn：0.2%, Al：
0.1%, Si：0.03%.
Its preparation method is：Including drug core layer is added on cortex, and after use cortex parcel, then it is sent to extruding
Cylindrical rod, and a diameter of 1.1mm of drawing cylindrical rod are squeezed into forming machine, you can obtain self-shielded welding wire.
Described drawing be control temperature be 310 DEG C at carry out to cylindrical rod elongate drawing-down processing.
Described drawing is carried out in the case where vacuum is 0.2MPa.
Embodiment 4
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.003%,
The composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 3.5%, metal fluoride 16%, SiO 2 powder
1.7%, manganese metal 7%, metallic nickel 9%, magnesium powder 12%, the mixture of surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
7：1, and the carbon content 0.01% in ferrochrome；And drug core layer is filled among cortex, filling rate 63%.
Described metal fluoride is formed to be combined by fluorine barium-lithium and magnesium fluoride and sodium fluoride, and wherein fluorine barium-lithium is in metal fluorine
Content in compound is 48.1%, and magnesium fluoride and sodium fluoride are any proportioning.
Described steel band is wide 24mm, and thickness is 0.5mm cold-rolled strip.
In described steel band, include the chemical composition of following weight/mass percentage composition：C：0.003%, Mn：0.5%, Al：
0.3%, Si：0.07%.
Its preparation method is：Including drug core layer is added on cortex, and after use cortex parcel, then it is sent to extruding
Cylindrical rod, and a diameter of 1mm of drawing cylindrical rod are squeezed into forming machine, you can obtain self-shielded welding wire.
Described drawing be control temperature be 270 DEG C at carry out to cylindrical rod elongate drawing-down processing.
Described drawing is carried out in the case where vacuum is 0.5MPa.
Embodiment 5
A kind of self-shielded welding wire, including cortex and drug core layer, cortex are steel band, and wherein the carbon content of steel band is 0.01%,
The composition of drug core layer is according to mass percent meter, its raw material：Aluminium powder 4.3%, metal fluoride 19%, SiO 2 powder
1.3%, manganese metal 6%, metallic nickel 8%, magnesium powder 10%, the mixture of surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
7：1, and the carbon content 0.02% in ferrochrome；And drug core layer is filled among cortex, filling rate 63%.
Described metal fluoride is to be combined and formed by fluorine barium-lithium and magnesium fluoride and sodium fluoride and calcirm-fluoride, wherein fluorine barium-lithium
Content in metal fluoride is 49.15%, and magnesium fluoride and sodium fluoride and calcirm-fluoride are any proportioning.
Described steel band is wide 24mm, and thickness is 0.5mm cold-rolled strip.
In described steel band, include the chemical composition of following weight/mass percentage composition：C：0.01%, Mn：0.3%, Al：
0.2%, Si：0.05%.
Its preparation method is：Including drug core layer is added on cortex, and after use cortex parcel, then it is sent to extruding
Cylindrical rod, and a diameter of 1.1mm of drawing cylindrical rod are squeezed into forming machine, you can obtain self-shielded welding wire.
Described drawing be control temperature be 210 DEG C at carry out to cylindrical rod elongate drawing-down processing.
Described drawing is carried out in the case where vacuum is 0.3MPa.
Claims (7)
1. a kind of self-shielded welding wire, including cortex and drug core layer, it is characterised in that cortex is steel band, the composition of drug core layer according to
Mass percent meter, its raw material are：Aluminium powder 3.1-4.5%, metal fluoride 15-20%, SiO 2 powder 0.7-2.7%,
The mixture of manganese metal 4-8%, metallic nickel 7-9%, magnesium powder 9-13%, surplus ferrochrome and tungsten carbide, wherein ferrochrome：Tungsten carbide is
(7-9)：1, and the carbon content 0.009-0.03% in ferrochrome；And drug core layer is filled among cortex, filling rate 60-
73%；In described steel band, include the chemical composition of following weight/mass percentage composition：C：0.003-0.01%, Mn：0.2-
0.5%, Al：0.1-0.3%, Si：0.03-0.07%；Described metal fluoride is by fluorine barium-lithium and magnesium fluoride or sodium fluoride
Or one or more combinations in calcirm-fluoride are formed, wherein content of the fluorine barium-lithium in metal fluoride is 41.3-59.7%.
2. self-shielded welding wire as claimed in claim 1, it is characterised in that the composition of described drug core layer is according to mass percent
Meter, its raw material are：Aluminium powder 3.9%, metal fluoride 18%, SiO 2 powder 1.5%, manganese metal 5%, metallic nickel 8%, magnesium
The mixture of powder 11%, surplus ferrochrome and tungsten carbide.
3. self-shielded welding wire as claimed in claim 1, it is characterised in that described steel band is wide 24mm, and thickness is 0.5mm's
Cold-rolled strip.
4. self-shielded welding wire as claimed in claim 1 or 2, it is characterised in that described ferrochrome, its carbon content are 0.01-
0.02%.
5. self-shielded welding wire as claimed in claim 1, it is characterised in that in preparation process, by drug core layer addition on cortex,
And after being wrapped up using cortex, then be sent in single lead screw ex truding briquetting machine and be squeezed into cylindrical rod, and a diameter of 0.9- of drawing cylindrical rod
1.3mm, you can obtain self-shielded welding wire.
6. self-shielded welding wire as claimed in claim 5, it is characterised in that described drawing is to control temperature as 200-310 DEG C
Under carry out to cylindrical rod elongate drawing-down processing.
7. the self-shielded welding wire as described in claim 5 or 6, it is characterised in that it in vacuum is 0.2- that described drawing, which is,
Carried out under 0.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510345005.2A CN104942466B (en) | 2015-06-19 | 2015-06-19 | A kind of self-shielded welding wire and preparation method thereof |
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| CN201510345005.2A CN104942466B (en) | 2015-06-19 | 2015-06-19 | A kind of self-shielded welding wire and preparation method thereof |
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| CN104942466A CN104942466A (en) | 2015-09-30 |
| CN104942466B true CN104942466B (en) | 2018-02-13 |
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| CN108620766A (en) * | 2018-04-11 | 2018-10-09 | 丹阳市华龙特钢有限公司 | A kind of high-intensity and high-tenacity stainless steel arc welding flux cored wire and preparation method thereof |
| CN109570816A (en) * | 2018-12-25 | 2019-04-05 | 潜江新锐硬质合金工具有限公司 | Powder additive and its application for hard-face overlaying welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3017057B2 (en) * | 1995-09-29 | 2000-03-06 | 株式会社神戸製鋼所 | Flux-cored wire for self-shielded arc welding |
| US20060096966A1 (en) * | 2004-11-08 | 2006-05-11 | Lincoln Global, Inc. | Self-shielded flux cored electrode for fracture critical applications |
| CN100441366C (en) * | 2007-02-01 | 2008-12-10 | 北京工业大学 | Cr13 series overlay welding self-protection flux-cored wire |
| CN100462188C (en) * | 2007-07-16 | 2009-02-18 | 李淑华 | Self-protecting flux-cored wire for overlaying welding and use thereof |
| CN102233491B (en) * | 2010-04-27 | 2013-01-09 | 昆山京群焊材科技有限公司 | Self-shielded flux-cored wire |
| CN103949795B (en) * | 2014-04-11 | 2016-01-27 | 洛阳双瑞特种合金材料有限公司 | A kind of medicine core powder for making seamless self-shielded welding wire |
| CN104028913A (en) * | 2014-05-30 | 2014-09-10 | 洛阳双瑞特种合金材料有限公司 | Seamless self-protection flux-cored wire |
| CN104259684B (en) * | 2014-07-29 | 2016-09-07 | 洛阳双瑞特种合金材料有限公司 | A kind of self-protection flux-cored wire for welding X90 pipe line steel and preparation method |
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| CN104942466A (en) | 2015-09-30 |
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