CN110153595A - Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side - Google Patents
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side Download PDFInfo
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- CN110153595A CN110153595A CN201910598489.XA CN201910598489A CN110153595A CN 110153595 A CN110153595 A CN 110153595A CN 201910598489 A CN201910598489 A CN 201910598489A CN 110153595 A CN110153595 A CN 110153595A
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- stainless steel
- welding
- back side
- exempted
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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
- B23K35/02—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
- B23K35/22—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
- B23K35/3608—Titania or titanates
-
- 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
- B23K35/365—Selection of non-metallic compositions of coating 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
Abstract
The present invention provides a kind of back sides to exempt from applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire, including stainless steel welding stick and wraps in the coating on stainless steel wire surface；The coating powder raw material includes the component of following parts by weight, 30~45 parts of rutile, 10~20 parts of marble, 2~7 parts of fluorite, 3~10 parts of SILICA FUME, 2~7 parts of titanium dioxide, 5~15 parts of crome metal, 2~10 parts of manganese metal, 5~15 parts of iron powder.The present invention wraps up coating outside stainless steel welding stick, when welding protection coating can melt infiltration to the molten bath back side form one layer of fine and close protection skull, skull falls off after natural cooling, to the release applying argon gas measure of the pipeline back side and keep back of weld fully protected.Welding wire application method of the present invention and common stainless steel argon arc solid welding wire are essentially identical, flexible operation.Without splashing in welding process, the defects of arc stability, no undercut, slag inclusion.Molten iron, pulp water good fluidity, wellability are good.
Description
Technical field
The invention belongs to field of welding material, exempt from applying argon gas self-shield stainless steel tungsten argon arc more particularly, to a kind of back side
Welding wire.
Background technique
Argon tungsten-arc welding has welding arc stablility, welding bead beautiful appearance, the high feature of weldquality, in order to guarantee to weld
Quality and cleaning inside degree generally use the welding method of argon arc bottoming in soldering stainless steel pipeline.Due to stainless steel and oxygen
Affinity it is very big, if not taking weld seam protection measure, the weld metal at the back side is easy to aoxidize in the welding process, alloy
Melting loss of elements, and the back side cannot form neat weld seam, be also easy to produce welding defect.Therefore, in stainless steel pipes argon arc welding, in order to
Guarantee back of weld welding quality, it is necessary to when taking the measure of being effectively protected, i.e. backing welding welding bead front and the welding bead back side all
When needing argon filling gas shielded, especially weld ell or three-port structure, safeguard measure is increasingly complex, and otherwise the back side of weld seam can be serious
Oxidation.
But there are following difficulties for filling steel pipes with argon: argon gas consumption first is big, and time is long, and welding cost increases；
Easily lead to welding quality unstable when followed by inner air tube displacement is not thorough；It is finally argon filling in large diameter pipeline and complexity
Performance difficulty under the particular surroundings such as pipe network.
Summary of the invention
In view of this, the present invention is directed to propose applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, with
It solves the above problems.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, including stainless steel welding stick and is wrapped in stainless
The coating of steel wire surface；The coating powder raw material includes the component of following parts by weight, and 30~45 parts of rutile, marble 10~
20 parts, 2~7 parts of fluorite, 3~10 parts of SILICA FUME, 2~7 parts of titanium dioxide, 5~15 parts of crome metal, 2~10 parts of manganese metal, iron powder 5
~15 parts.
Preferably, the component including following parts by weight: 35~45 parts of rutile, 12~18 parts of marble, fluorite 2~7
Part, 5~8 parts of SILICA FUME, 3~5 parts of titanium dioxide, 8~12 parts of crome metal, 4~8 parts of manganese metal, 8-12 parts of iron powder.
Preferably, TiO in rutile2CaCO in mass content >=97.0%, marble3Mass content >=97.0%, fluorite
Middle CaF2Mass content >=96.0%.
Preferably, the coating further includes binder, and additive amount is the 22-32% of powder.
Preferably, the binder is low mould potassium-sodium water glass, modulus 2.4-2.8.
Preferably, the coating accounts for the 15~25% of welding wire total weight.
Preferably, the diameter of the stainless steel wire is 1.6mm~3.2mm.
The effect of coating component:
Rutile: main component TiO2, there is stabilising arc and fluxing effect, can adjust fusing point, the viscosity, surface tension of slag
And mobility.Improve appearance of weld, reduce splashing and undercut, and largely improves removability of slag energy.Excessive TiO2
The fusing point of slag will be improved, reduce the solidification temperature range of slag, hinder the mobilization between slag and liquid metal, influenced
The abundant progress of metallurgical reaction makes the evolution resistance increase of bath gas, the defects of easily forming stomata, be mingled with.
Marble: main composition-calcium carbonate resolves into CaO and CO under the action of arc heat2, play gas slag Combined Protection
The effect in molten bath.It can guarantee blow force of arc when welding, stablize electric arc, increase slag and metal interface tension and surface tension,
Improve de- slag.Excessive marble improves the setting temperature of slag, reduces the viscosity of slag, sleeve is made to shorten, and blowing force increases, together
When splash increase, appearance of weld is bad, and welding technological properties is made to degenerate.
Fluorite: main component is CaF2, it can reduce the fusing point of basic clinker, increase the mobility of slag, be conducive to drop
The gaseous impurity of low weld metal can also reduce the hydrogen-sucking amount of liquid metals.CaF2When additional amount is excessive, welding arc will affect
Stability, increase the molten drop diameter in welding process, splash increase, coating fusing it is too fast.
SILICA FUME: SILICA FUME is added, slag fluidity is adjusted, but to will lead to slag fluidity excessive for too high levels.
Titanium dioxide: the granularity of titanium dioxide is fine and smooth, can increase coating plasticity, welding rod extrusion performance and welding rod epidermis quality.
But titanium dioxide is added should not be excessive, is added and excessively easily causes coating crackle.And processing performance is not so good as rutile.
Manganese metal, chromium powder main function be Transition-metal Alloys, guarantee alloy element component in weld seam.
Iron powder: iron powder can purify bath, while it can refine crystal grain again, accelerate the burn-off rate of coating, improve deposition effect
Rate.
The invention also discloses the use that argon filling self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side as described above
On the way, applying argon gas welding is exempted from the back side for stainless steel pipe, plate etc..
Compared with the existing technology, the weldering of applying argon gas self-shield argon tungsten arc welding of stainless steel is exempted from a kind of back side of the present invention
Silk, the utility model has the advantages that
1, welding wire of the present invention wraps up coating outside stainless steel welding stick, when welding protection coating can melt infiltration to melting
The pond back side forms one layer of fine and close protection skull, and skull falls off after natural cooling, so that the pipeline back side is exempted argon filling measure and made
Back of weld is fully protected.
2, welding wire application method of the present invention and common stainless steel argon arc solid welding wire are essentially identical, flexible operation.
Without splashing in welding process, the defects of arc stability, no undercut, slag inclusion.Molten iron, pulp water good fluidity, wellability are good.
3, welding wire postwelding of the present invention front back bead beautiful appearance, positive back side welding slag take off slag and are easy, solderless
Splashing is connect, all-position welding can be carried out to workpiece.
4, welding wire postwelding weld seam corrosion resistance of the present invention is strong, and welding quality is high, reduces the preparation of argon filling,
Welding cost is reduced, is improved work efficiency.
Specific embodiment
In addition to being defined, technical term used in following embodiment has and the invention one of ordinary skill in the art
The identical meanings being commonly understood by.Test reagent used in following embodiment is unless otherwise specified conventional biochemical reagent；
The experimental method is unless otherwise specified conventional method.
Below with reference to embodiment, the present invention will be described in detail.
Each ingredient powder of coating is taken in proportion；After mixing by powder, the water glass of the total composition quality 25% of medicinal powder is added
Glass is uniformly mixed as coating binder；It is sent into hydraulic type extrusion press and is wrapped on ER308L stainless steel welding stick,
It is baked again through low temperature and high temperature, argon filling self-shield stainless steel tungsten argon arc is exempted from manufacture growth 1000mm, the back side that specification is 2.5mm
Welding wire.
Embodiment 1
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, and the coating powder includes following parts by weight
Several components, 40 parts of rutile, 13 parts of marble, 5 parts of fluorite, 6 parts of SILICA FUME, 4 parts of titanium dioxide, 11 parts of crome metal, manganese metal 5
Part, 11 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
Embodiment 2
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, and the coating powder includes following parts by weight
Several components, 36 parts of rutile, 16 parts of marble, 7 parts of fluorite, 6 parts of SILICA FUME, 5 parts of titanium dioxide, 10 parts of crome metal, manganese metal 6
Part, 10 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
Embodiment 3
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, and the coating powder includes following parts by weight
Several components, 45 parts of rutile, 10 parts of marble, 3 parts of fluorite, 6 parts of SILICA FUME, 3 parts of titanium dioxide, 9 parts of crome metal, manganese metal 5
Part, 10 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
Embodiment 4
Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, and the coating powder includes following parts by weight
Several components, 42 parts of rutile, 11 parts of marble, 7 parts of fluorite, 7 parts of SILICA FUME, 4 parts of titanium dioxide, 11 parts of crome metal, manganese metal 7
Part, 11 parts of iron powder.
Comparative example 1
A kind of welding wire, the coating powder include the component of following parts by weight, 34 parts of rutile, 16 parts of marble, firefly
7 parts of stone, quartzy 6 parts, 4 parts of titanium dioxide, 11 parts of crome metal, 5 parts of manganese metal, 11 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
Comparative example 2
A kind of welding wire, the coating powder include the component of following parts by weight, 2 parts of rutile, 40 parts of marble, fluorite
5 parts, 1 part of SILICA FUME, 5 parts of titanium dioxide, 10 parts of crome metal, 4 parts of manganese metal, 15 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
Comparative example 3
A kind of welding wire, the coating powder include the component of following parts by weight, 22 parts of rutile, 30 parts of marble, firefly
17 parts of stone, 3 parts of SILICA FUME, 4 parts of titanium dioxide, 13 parts of crome metal, 5 parts of manganese metal, 17 parts of iron powder.
Comparative example 4
A kind of welding wire, the coating powder include the component of following parts by weight, 15 parts of rutile, 40 parts of marble, firefly
15 parts of stone, 4 parts of SILICA FUME, 5 parts of titanium dioxide, 5 parts of crome metal, 3 parts of manganese metal, 15 parts of iron powder.
The ratio that the coating accounts for welding rod total weight is 20%.
By above embodiments and the resulting welding wire of comparative example, presentation quality inspection is carried out to it, and use welds it
Technological parameter: 110~140A of welding current, arc voltage are that 14~15V carries out welding process performance test, experimental result such as table
Shown in one.
Table one
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side, it is characterised in that: including stainless steel welding stick and
It wraps in the coating on stainless steel wire surface；The coating powder raw material includes the component of following parts by weight, 30~45 parts of rutile,
10~20 parts of marble, 2~7 parts of fluorite, 3~10 parts of SILICA FUME, 2~7 parts of titanium dioxide, 5~15 parts of crome metal, manganese metal 2~
10 parts, 5~15 parts of iron powder.
2. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: the component including following parts by weight: 35~45 parts of rutile, 12~18 parts of marble, 2~7 parts of fluorite, SILICA FUME 5~8
Part, 3~5 parts of titanium dioxide, 8~12 parts of crome metal, 4~8 parts of manganese metal, 8-12 parts of iron powder.
3. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: TiO in rutile2CaCO in mass content >=97.0%, marble3CaF in mass content >=97.0%, fluorite2Quality contains
Amount >=96.0%.
4. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: the coating further includes binder, and additive amount is the 22-32% of powder gross mass.
5. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: the binder is low mould potassium-sodium water glass, modulus 2.4-2.8.
6. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: the coating accounts for the 15~25% of welding wire total weight.
7. applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side according to claim 1, feature exists
In: the diameter of the stainless steel wire is 1.6mm~3.2mm.
8. as the use of applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of described in any item back sides claim 1-8
On the way, it is characterised in that: exempt from applying argon gas welding in the back side for stainless steel pipe, plate etc..
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910598489.XA CN110153595A (en) | 2019-07-04 | 2019-07-04 | Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side |
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|---|---|---|---|
| CN201910598489.XA CN110153595A (en) | 2019-07-04 | 2019-07-04 | Applying argon gas self-shield argon tungsten arc welding of stainless steel welding wire is exempted from a kind of back side |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843286A (en) * | 2020-07-16 | 2020-10-30 | 上海电机学院 | Flux-cored wire and preparation method thereof |
| CN112975199A (en) * | 2021-02-26 | 2021-06-18 | 天津市金桥焊材集团股份有限公司 | Stainless steel welding rod for improving vertical welding process performance |
| CN114178739A (en) * | 2021-12-27 | 2022-03-15 | 宣达实业集团有限公司 | High-toughness high-silicon stainless steel argon-filling-free argon arc welding wire and preparation process thereof |
| CN115975513A (en) * | 2023-03-16 | 2023-04-18 | 天津市金桥焊材集团股份有限公司 | Binder for producing welding electrode |
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| CN1958213A (en) * | 2005-11-01 | 2007-05-09 | 哈尔滨理工大学 | Stainless steel welding rod of new dregs series |
| CN104191110A (en) * | 2014-08-28 | 2014-12-10 | 北京金威焊材有限公司 | One-face welding and two-face forming welding wire with back face argon-filling-free protection |
| CN105537801A (en) * | 2015-09-01 | 2016-05-04 | 上海大西洋焊接材料有限责任公司 | Stainless steel welding rod used for 904 L steel welding |
| CN106181127A (en) * | 2016-08-24 | 2016-12-07 | 天津大桥金属焊丝有限公司 | Argon filling self-shield argon tungsten-arc welding flux-cored wire is exempted from the stainless steel pipes back side |
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2019
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| CN1958213A (en) * | 2005-11-01 | 2007-05-09 | 哈尔滨理工大学 | Stainless steel welding rod of new dregs series |
| CN104191110A (en) * | 2014-08-28 | 2014-12-10 | 北京金威焊材有限公司 | One-face welding and two-face forming welding wire with back face argon-filling-free protection |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843286A (en) * | 2020-07-16 | 2020-10-30 | 上海电机学院 | Flux-cored wire and preparation method thereof |
| CN112975199A (en) * | 2021-02-26 | 2021-06-18 | 天津市金桥焊材集团股份有限公司 | Stainless steel welding rod for improving vertical welding process performance |
| CN112975199B (en) * | 2021-02-26 | 2023-02-21 | 天津市金桥焊材集团股份有限公司 | Stainless steel welding rod for improving vertical welding process performance |
| CN114178739A (en) * | 2021-12-27 | 2022-03-15 | 宣达实业集团有限公司 | High-toughness high-silicon stainless steel argon-filling-free argon arc welding wire and preparation process thereof |
| CN115975513A (en) * | 2023-03-16 | 2023-04-18 | 天津市金桥焊材集团股份有限公司 | Binder for producing welding electrode |
| CN115975513B (en) * | 2023-03-16 | 2023-08-04 | 天津市金桥焊材集团股份有限公司 | Adhesive for producing welding rod |
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Address after: 300300 No. 1 Liujing Road, Dongli Development Zone, Dongli District, Tianjin Applicant after: Tianjin Jinqiao Welding Materials Group Co.,Ltd. Address before: No. 1 Liujing Road, Dongli District Development Zone, Tianjin 300300 Applicant before: TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP Co.,Ltd. |
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Application publication date: 20190823 |