CN101138815A - Active soldering flux for welding stainless steel - Google Patents
Active soldering flux for welding stainless steel Download PDFInfo
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- CN101138815A CN101138815A CNA200610126847XA CN200610126847A CN101138815A CN 101138815 A CN101138815 A CN 101138815A CN A200610126847X A CNA200610126847X A CN A200610126847XA CN 200610126847 A CN200610126847 A CN 200610126847A CN 101138815 A CN101138815 A CN 101138815A
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- welding
- stainless steel
- oxide
- molybdenum
- scaling powder
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- 238000003466 welding Methods 0.000 title claims abstract description 150
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 71
- 239000010935 stainless steel Substances 0.000 title claims abstract description 67
- 230000004907 flux Effects 0.000 title claims abstract description 22
- 238000005476 soldering Methods 0.000 title abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 51
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 29
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 28
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims abstract description 28
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 16
- 230000003213 activating effect Effects 0.000 claims abstract description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract 8
- 230000000996 additive effect Effects 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 13
- 229910000679 solder Inorganic materials 0.000 claims description 11
- 230000035515 penetration Effects 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 64
- 239000011324 bead Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 28
- 239000000377 silicon dioxide Substances 0.000 description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 19
- 229910052721 tungsten Inorganic materials 0.000 description 19
- 239000010937 tungsten Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 17
- 229910052756 noble gas Inorganic materials 0.000 description 17
- 229910001338 liquidmetal Inorganic materials 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 230000004927 fusion Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- QRIBYRJEHDSKBT-UHFFFAOYSA-N [Mo]=O.[Mo]=S Chemical compound [Mo]=O.[Mo]=S QRIBYRJEHDSKBT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- CFQGDIWRTHFZMQ-UHFFFAOYSA-N argon helium Chemical compound [He].[Ar] CFQGDIWRTHFZMQ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- ZDVUHAMBHUYTNW-UHFFFAOYSA-N chromium(3+) oxygen(2-) titanium(4+) Chemical compound [O-2].[Ti+4].[O-2].[Cr+3] ZDVUHAMBHUYTNW-UHFFFAOYSA-N 0.000 description 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
An active flux for welding stainless steel, comprising, in weight percent, 25% to 40% titanium oxide, 25% to 30% chromium oxide, 10% to 30% silicon oxide, 10% to 15% molybdenum sulfide, and 5% to 15% molybdenum oxide. Titanium oxide, chromium oxide, silicon oxide, molybdenum sulfide, molybdenum oxide and the like are used as activating additives to improve the penetration depth and welding characteristics of the stainless steel workpiece during arc welding by adding welding materials. The welding material for stainless steel is a welding rod or a welding wire, and a soldering flux is coated by a soldering flux or coated by the soldering flux, so that the convenience of welding construction and the uniformity of supplying the soldering flux are improved.
Description
Technical field
The present invention is about a kind of active scaling powder that is used for soldering stainless steel, particularly about utilizing titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide etc. as activating additive, depth of penetration and welding characteristic when carrying out arc welding so as to promoting stainless steel work-piece utilization interpolation wlding mode.
Background technology
When the various steel of tradition are desired to weld, usually select the arc welding mode for use, the arc welding mode comprises: noble gas tungsten electrode arc welding (Tungsten Inert Gas Welding, TIG), noble gas metal arc welding (Metal Inert Gas Welding, MIG), carbon arc welding (Carbon ArcWelding, CAW), buried arc welding (Submerged Arc Welding, SAW) and the arc welding of bag medicine bonding wire (Flux Cored Arc Welding, FCAW) etc.With noble gas tungsten electrode arc welding is example, its be with tungsten bar as electrode, and and the electric arc that is produced between the workpiece, as the thermal source of welding usefulness.In welding process, inert protective gas is supplied to workpiece by welding gun and desires weld, to prevent electrode, weldpool, electric arc and contiguous heat affected zone generation oxidative phenomena, so that weld solidifies and cool off the formation welding bead smoothly.Yet; if when the noble gas tungsten arc welding is scooped out the full penetration welding bead that is used to form workpiece; the depth of penetration deficiency takes place in Shi Changhui, fusion penetration is inconsistent or weldpool only forms wide and shallow problems such as form, and it is to be that mostly the alloying element trace variation institute in the workpiece weldpool causes that opinion is studied carefully its main cause.How to improve the depth of penetration of general traditional noble gas tungsten electrode arc welding processing procedure,, become the problem that the welding dealer endeavours to study to guarantee the complete penetration of welding bead and to promote welding production efficiency.
Consult Fig. 1-shown in Figure 3, the processing in advance that its summary discloses the improvement processing procedure of traditional noble gas tungsten electrode arc welding handle and welding after profile morphology.Only form wide and shallow problem in order to improve weldpool, traditional noble gas tungsten electrode arc welding processing procedure utilizes a milling cutter 2 Milling Process to become an inclined plane 12 at a lateral margin 11 of a workpiece 1 usually in advance, and processes the lateral margin 11 of another workpiece 1 according to same way as.Then, lateral margin 11 and inclined plane 12 butt joints (butt joint) with two workpiece 1, with common formation one fluting structure, and then conveniently utilize a welding gun 3 of tungsten bar electrode and a wlding 100 to carry out noble gas tungsten electrode arc welding processing procedure, can weld by this and form a welding bead 13.Really help controlling welding bead 13 tendency increase depth of penetrations, the negative increase process complexity of this measure, processing cost and activity duration etc. though be processed to form this inclined plane 12 in advance.Simultaneously, welding bead 13 exists still that Welding Structure is bad, bond strength is low and the problem of weldering hat surface irregularity etc.
The scaling powder that traditional welding is used, as TaiWan, China patent announcement No. 1231239 " stainless steel arc welding scaling powder " and U.S. Patent Publication No. 2005/0199317 " stainless steel arc welding scaling powder and welding method (Welding Flux for Use in Arc-Welding of Stainless Steels thereof, Method of Welding Stainless Steel Members Using the Welding Flux) " patent of invention, it is with manganese oxide (MnO
2) be substrate, and select to comprise zinc oxide (ZnO), silica (SiO
2), chromium oxide (CrO
2), titanium oxide (TiO
2), molybdenum dioxide (MoO
2) and iron oxide (Fe
2O
3) at least a, with as the activation additive.The weight ratio of substrate (manganese oxide) is more than 70%, and the weight ratio of activation additive is below 30%.
Consult Fig. 4-shown in Figure 5, when carrying out a workpiece 1 arc welding, after will containing one of above-mentioned composition scaling powder 4 and grind to form a paste form by a liquid medium, further utilize a hairbrush 40 scaling powder 4 to be coated on the top of two workpiece, 1 corresponding two lateral margins 11 that have a common boundary, so can carry out the arc welding processing procedure, to form a welding bead 13 to workpiece 1.By using scaling powder 4, produce splash or welding slag hardly near the welding bead 13 of workpiece 1, and the surface of welding bead 13 almost can itself not keep concordant consistent in the surface of fusion with workpiece 1.Simultaneously, observe the section sample of welding bead 13, welding bead 13 can be really on workpiece 1 welding phenomena of the narrower and complete penetration of generation width.
Consult Fig. 6-shown in Figure 7, it is to be that scaling powder 4 adds substrate (manganese oxide) and activation additive that opinion is studied carefully its main cause of improving welding quality, so scaling powder 4 can effectively improve the surface tension gradient variation of the liquid metal in the weldpool 10, and then influences the liquid metal flow direction in the weldpool 10.More in detail, weldpool 10 capillary temperatures coefficient are depended in the variation of the surface tension gradient of liquid metal, and capillary temperature coefficient then depends on the existence that has or not active element.
As shown in Figure 6, when not existing active element when (or only having active lower element) in the weldpool 10, the surface tension of weldpool 10 will rise along with the arc temperature that a welding gun 3 provides and reduce, so that the liquid level of liquid metal forms " the outer surface tension force stream " that is flowed by its outer rim of weldpool 10 mediads, and then makes welding bead 13 form wide and shallow profile morphology.As shown in Figure 7, when having active element in the weldpool 10, then the surface tension of weldpool 10 will rise and increase along with arc temperature, so that the liquid level of liquid metal forms by " the inner surface tension force stream " of weldpool 10 outer rims to its central flows, and then make the narrow and dark profile morphology of welding bead 13 formation.
Though above-mentioned traditional scaling powder 4 provides the activation additive, exhausted most composition of scaling powder 4 is that little substrate (manganese oxide) is benefited in activation.Moreover, scaling powder 4 is coated on the lateral margin 11, relatively also cause the inconvenience on the complicated and allocation processing of welding processing procedure.Therefore, for these reasons, it still is necessary to improve the scaling powder of welding usefulness really, so that further promote the welding quality of stainless steel work-piece.
In view of this, the present invention improves above-mentioned shortcoming, it forms a scaling powder by titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide etc., it is all in order to as the activation additive, and depth of penetration, weldability, surface smoothness, mechanical strength and impact flexibility etc. that can be when increasing the stainless steel work-piece welding.By this, scaling powder of the present invention can further improve the integral solder quality of stainless steel work-piece, with processing capacity in advance before the relative minimizing welding or the Surface Machining amount after the welding, and then promote the welding convenience and will simplify the welding processing procedure.
Summary of the invention
Main purpose of the present invention provides a kind of active scaling powder that is used for soldering stainless steel, and it mainly comprises molybdenum oxide (MoO
3, i.e. molybdenum trioxide), reach the purpose that increases stainless steel welding depth of penetration.
The present invention's second purpose provides a kind of active scaling powder that is used for soldering stainless steel, and it comprises silica (SiO
2), reach the purpose that increases stainless steel welding characteristic and depth of penetration.
The present invention's the 3rd purpose provides a kind of active scaling powder that is used for soldering stainless steel, and it comprises titanium oxide (TiO
2) and chromium oxide (Cr
2O
3), reach the mechanical strength of increase stainless steel welding and the purpose of impact flexibility.
The present invention's the 4th purpose provides a kind of active scaling powder that is used for soldering stainless steel, and it comprises molybdenum sulfide (MoS
2), reach the auxiliary purpose that increases stainless steel welding depth of penetration and surface smoothness.
The present invention's the 5th purpose provides a kind of active scaling powder wlding that is used for soldering stainless steel, it is that a welding rod or bonding wire can be selected to coat a scaling powder by a scolder, or, reach the purpose that increase welding convenience and scaling powder are supplied with well-balanced property by the scaling powder coated solder.
The object of the present invention is achieved like this: a kind of active scaling powder that is used for soldering stainless steel, it is characterized in that: it comprises titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide, and wherein this titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide are in order to conduct activation additive.
This titanium oxide occupies 25% to 40% by weight percentage.This chromium oxide occupies 25% to 30%.This silica occupies 10% to 30%.This molybdenum sulfide occupies 10% to 15%.This molybdenum oxide occupies 5% to 15%.
It comprises a kind of scolder in addition, and this scolder is coated on outside this scaling powder, to be combined into one of welding rod or bonding wire jointly.Also comprise a kind of scolder in addition, this scaling powder is to be coated on outside this scolder, to be combined into one of welding rod or bonding wire jointly.
Another kind is used for the active scaling powder of soldering stainless steel, it is characterized in that: it comprises titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide, wherein this titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide are in order to conduct activation additive, and this scaling powder becomes a wlding in conjunction with a kind of scolder.
This titanium oxide occupies 25% to 40% by weight percentage, and this chromium oxide occupies 25% to 30%, and this silica occupies 10% to 30%, and this molybdenum sulfide occupies 10% to 15%, and this molybdenum oxide occupies 5% to 15%.
Major advantage of the present invention is:
The active scaling powder that is used for soldering stainless steel, it comprises by weight percentage titanium oxide 25% to 40%, chromium oxide 25% to 30%, silica 10% to 30%, molybdenum sulfide 10% to 15% and molybdenum oxide 5% to 15%.Titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide etc. activate additive in order to conduct, depth of penetration and welding characteristic when carrying out arc welding so as to promoting stainless steel work-piece utilization interpolation wlding mode; The stainless steel wlding is a welding rod or bonding wire, can select to coat a scaling powder by a scolder, or by the scaling powder coated solder, supply with well-balanced property so as to increasing welding procedure convenience and scaling powder.
Description of drawings
Fig. 1: traditional noble gas tungsten electrode arc welding processing procedure is processed the schematic diagram of processing in advance to general steel workpiece.
Fig. 2: the schematic diagram of the profile morphology when traditional noble gas tungsten electrode arc welding processing procedure welds stainless steel work-piece.
Fig. 3: the schematic diagram of the profile morphology after traditional noble gas tungsten electrode arc welding processing procedure welds stainless steel work-piece.
Fig. 4: another traditional noble gas tungsten electrode arc welding processing procedure is processed the schematic diagram of processing in advance to general steel workpiece.
Fig. 5: the schematic diagram of the profile morphology after another traditional noble gas tungsten electrode arc welding processing procedure welds stainless steel work-piece.
Fig. 6: the schematic diagram of the weldpool liquid metal flow regime when general steel workpiece does not add active element when welding.
Fig. 7: general steel workpiece has the schematic diagram of the weldpool liquid metal flow regime when adding active element when welding.
Fig. 8: the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 1 and the sectional perspective enlarged drawing of scolder.
Fig. 9: the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 2 and the sectional perspective enlarged drawing of scolder.
Figure 10: the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 3 and the sectional perspective enlarged drawing of scolder.
Figure 11: the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 4 and the sectional perspective enlarged drawing of scolder.
The active scaling powder that is used for soldering stainless steel of Figure 12: embodiment of the invention 1-4 and the use schematic diagram of scolder.
The specific embodiment
For purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. is described in detail below:
Consult down shown in the tabulation one, the active scaling powder that is used for soldering stainless steel of preferred embodiment of the present invention is to comprise titanium oxide (TiO
2), chromium oxide (Cr
2O
3), silica (SiO
2), molybdenum sulfide (MoS
2) and molybdenum oxide (MoO
3, i.e. molybdenum trioxide etc.), it all is in order to as the activation additive, adds depth of penetration, weldability, welding bead surface smoothness, mechanical strength and the impact flexibility etc. of wlding mode when carrying out arc welding so as to promoting the stainless steel work-piece utilization.
On preferable enforcement ratio, the active scaling powder that is used for soldering stainless steel of the present invention is preferably titanium oxide 25% to 40%, chromium oxide 25% to 30%, silica 10% to 30%, molybdenum sulfide 10% to 15% and the molybdenum oxide 5% to 15% that comprises by weight percentage.
Moreover, at the active scaling powder that is used for soldering stainless steel of preferred embodiment of the present invention, the preferable molybdenum trioxide that is selected from of molybdenum oxide composition, it is the depth of penetration when increasing the stainless steel welding in order to essence, to promote welding bead depth/width ratio, the heat affected area when reducing to weld.
The silica composition is the welding characteristic when increasing the stainless steel welding in order to essence, also possesses the auxiliary effect that increases depth of penetration simultaneously.
Titanium oxide and chromium oxide composition are mechanical strength and the impact flexibility that increases the stainless steel welding in order to essence.
The molybdenum sulfide composition is to produce welding slag in order to reduce the welding bead outward appearance, to promote the welding bead surface smoothness, makes the welding back form good welding bead outward appearance.
In addition, with regard to the active scaling powder that is used for soldering stainless steel of preferred embodiment of the present invention, it is applicable to that auxiliary various stainless steel workpiece carry out various arc welding processing procedures, with the further integral solder quality of improving stainless steel work-piece.The kind of above-mentioned stainless steel can be selected from the stainless steel of general international standard institute standards such as JIS, AISI, DIN, BS or MIL, for example the SUS 304 austenite type stainless steels of JIS system or SUS 316 austenite type stainless steels etc.Above-mentioned arc welding processing procedure can be selected from noble gas tungsten electrode arc welding (TIG), noble gas metal arc welding (MIG), carbon arc welding (CAW), buried arc welding (SAW) and bag medicine bonding wire arc welding (FCAW) etc.
The present invention hereinafter will utilize the noble gas tungsten electrode arc welding processing procedure of SUS 304 stainless steels to describe the preferable enforcement ratio of wlding scaling powder composition of the present invention in detail, yet wlding scaling powder composition of the present invention is not limited to this enforcement ratio, and it still can be according to the composition appropriate regulation usage ratio of stainless steel and wlding.
Table one, the proportion of composing that is used for the active scaling powder of soldering stainless steel of the present invention.
| The enforcement ratio | Titanium oxide | Chromium oxide | Silica | Molybdenum sulfide | Molybdenum oxide | Depth of penetration | Mechanical strength | Impact flexibility | The welding bead outward appearance | Weldability |
| I | 25％ | 25％ | 30％ | 15％ | 5％ | Excellent | Excellent | Excellent | Excellent | Excellent |
| II | 30％ | 30％ | 15％ | 10％ | 15％ | Can | Can | Can | Can | Excellent |
| III | 40％ | 30％ | 10％ | 10％ | 10％ | Excellent | Excellent | Excellent | Can | Can |
Please consult shown in the table one, the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 1 ratio comprises titanium oxide 25%, chromium oxide 25%, silica 30%, molybdenum sulfide 15% and molybdenum oxide 5% by weight percentage again.
Moreover the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 2 ratios comprises titanium oxide 30%, chromium oxide 30%, silica 15%, molybdenum sulfide 10% and molybdenum oxide 15% by weight percentage.
In addition, the active scaling powder that is used for soldering stainless steel of the embodiment of the invention 3 ratios comprises by weight percentage titanium oxide 40%, chromium oxide 30%, silica 10%, molybdenum sulfide 10% and molybdenum oxide 10%.
It should be noted that if the content of molybdenum oxide below 5% or 15% when above, will reduce the depth/width ratio of weldpool relatively, or influences effective upgrading degree of other composition.If the content of silica will reduce weldability relatively, or influence effective upgrading degree of other composition below 10% or 30% when above.If the content of titanium oxide is 25% below or 40% when above, the reduction mechanical strength and the impact flexibility of welding relatively, or influence effective upgrading degree of other composition.If the content of chromium oxide also will reduce welding bead mechanical strength and impact flexibility relatively, or influence effective upgrading degree of other composition below 25% or 30% when above.If the content of molybdenum sulfide will cause the welding bead outward appearance to accumulate welding slag, and then reduce the welding bead surface smoothness relatively, or influence effective upgrading degree of other composition 10% below or 15% when above.Particularly, titanium oxide, chromium oxide and silica three's consumption summation must remain between the 80wt% to 90wt% of gross weight; And the amount ratio (TiO of titanium oxide and chromium oxide
2/ Cr
2O
3) preferable need are between 1 to 1.4.
Consult Fig. 8-shown in Figure 11, embodiments of the invention 1-4 is preferably all and is combined into a wlding 100 (or claim welding rod or claim bonding wire) jointly by a scolder 101 and a scaling powder 102 (or claiming welding agent).As shown in Figure 8, wlding 100 is can select scaling powder 102 is inserted in the scolder 101 of hollow cylindrical.As shown in Figure 9, wlding 100 can be selected to be coated on outside the columned scolder 101 by scaling powder 102.As shown in figure 10, wlding 100 can be selected to be coated on outside the scaling powder 102 through being rolled into ring-type by the scolder 101 of sheet.As shown in figure 11, wlding 100 also can be selected to be coated on outside the scaling powder 102 through being rolled into ring-type by the scolder 101 of sheet, make simultaneously scolder 101 inwardly form at least one in elongated end 103.
Please consult Fig. 8-shown in Figure 12 again, the scolder 101 of 0 embodiment 1-4 of the present invention and the usage ratio of scaling powder 102 are to change according to the kind of composition and stainless steel separately.Scolder 101 can be taken from various traditional stainless steel scolders, so the present invention does not limit its composition.Moreover; when carrying out noble gas tungsten electrode arc welding processing procedure; one welding gun 3 (being the tungsten bar electrode) is close to two workpiece of being made by stainless steel 1 under the protection of inert gases such as argon gas or helium or argon helium gas mixture, so that electric arc heat energy to be provided two workpiece, 1 corresponding two lateral margins 11 that have a common boundary are carried out arc welding.At this moment, the weld that wlding 100 is handled near electric arcs so that the scolder 101 of fusion wlding 100, utilizes the weldability of scaling powder 102 service hoisting scolders 101 with the liquid metal of this workpiece 1 of wlding 100 simultaneously.
Please consult Fig. 5 and shown in Figure 7 in addition, an amount of titanium oxide, chromium oxide, silica, molybdenum sulfide and the molybdenum oxides etc. that embodiments of the invention 1-4 comprised are in order to conduct activation additive, therefore the surface tension gradient that can effectively improve the liquid metal in the weldpool 10 of workpiece 1 changes, and then influence the interior liquid metal flow direction of weldpool 10.Under the booster action of scaling powder 102, the surface tension of weldpool 10 will rise and increase along with arc temperature, impel the liquid level of liquid metal to form by " the inner surface tension force stream " of these weldpool 10 outer rims to its central flows.By this, impel the liquid metal in the weldpool 10 to produce the deflation phenomenon, and the feasible current density that is arranged in the anode spot district (anode spot) of weldpool 10 improve.And then make welding bead 13 form narrow and dark profile morphology.That is, can promote the depth/width ratio of weldpool 10, the heat affected area when reducing to weld is to avoid influencing the stainless steel substrate character of non-welding close position.
Please consult shown in the table one again, the scaling powder 102 of the embodiment 1-3 ratio of the application of the invention, owing to comprise the different activation additive of multiple effect, therefore the welding bead 13 of workpiece 1 has splendid depth of penetration, mechanical strength, impact flexibility and welding characteristic etc., and produce splash or welding slag near the welding bead 13 hardly, and the surface of welding bead 13 almost can itself not keep concordant consistent in the surface of fusion with workpiece 1.Simultaneously, observe the section sample of welding bead 13, welding bead 13 can be really gone up the welding phenomena that produces the narrower and complete penetration of width at workpiece 1 (5mm is thick, SUS 304 corrosion resistant plates).By this, help omitting or reducing the demand that the lateral margin 11 of workpiece 1 is processed in advance.
In addition, the scaling powder 102 of embodiments of the invention 1-3 ratio can further directly be combined into same wlding 100 (the embodiment 1-4 structure shown in Fig. 8-12) with scolder 101, and it also helps increasing the well-balanced property of supply of welding procedure convenience and scaling powder.
As mentioned above, do not adopt scaling powder, so that need in advance repeatedly to repeat to process between the lateral margin 11 of workpiece 1 and light inclined-plane 12 relatively compared to the general steel arc welding processing procedure of tradition of Fig. 1; Or be that scaling powder 4 is coated on the lateral margin 11 compared to the general steel arc welding processing procedure of tradition of Fig. 2, cause processing procedure complicated relatively, operation inconvenience, and shortcomings such as the activation additive content of scaling powder 4 is less relatively, and the present invention of Fig. 8-Figure 12 forms scaling powder 102 by titanium oxide, chromium oxide, silica, molybdenum sulfide and molybdenum oxide etc., and it is in order to increase depth of penetration, weldability, surface smoothness, mechanical strength and the impact flexibility etc. of stainless workpiece 1 when welding.By this, scaling powder 102 of the present invention can further improve the integral solder quality of the workpiece 1 of stainless steel, with processing capacity in advance before the relative minimizing welding or the Surface Machining amount after the welding, and then promote the welding convenience, simplify the welding processing procedure, enhance productivity and cut down finished cost etc.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610126847XA CN101138815B (en) | 2006-09-07 | 2006-09-07 | Active soldering flux for welding stainless steel |
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| CN200610126847XA CN101138815B (en) | 2006-09-07 | 2006-09-07 | Active soldering flux for welding stainless steel |
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| CN101138815A true CN101138815A (en) | 2008-03-12 |
| CN101138815B CN101138815B (en) | 2010-06-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804531A (en) * | 2010-03-04 | 2010-08-18 | 吴军 | Steam fog activating flux used for increasing welding penetration and spraying method thereof |
| CN101947703A (en) * | 2010-10-08 | 2011-01-19 | 中国航空工业集团公司北京航空制造工程研究所 | Active welding flux for high-temperature alloy fusion welding and preparation method thereof |
| CN102039498A (en) * | 2010-12-24 | 2011-05-04 | 中国船舶重工集团公司第七二五研究所 | Sintered flux for two phase stainless steel |
| CN104476015A (en) * | 2014-10-31 | 2015-04-01 | 天津市宏远钛铁有限公司 | Titanium alloy solder and soldering method thereof |
| CN107214439A (en) * | 2017-07-17 | 2017-09-29 | 广西百色银海铝业有限责任公司 | A kind of cast iron solder flux and welding method |
| CN108637529A (en) * | 2018-05-22 | 2018-10-12 | 昆山华恒焊接股份有限公司 | A kind of austenitic stainless steel argon tungsten-arc welding activating agent and its preparation method and application |
| CN109175693A (en) * | 2018-10-14 | 2019-01-11 | 创为（三明）技术服务有限公司 | Single laser welding method for molybdenum plate |
| TWI732689B (en) * | 2019-12-12 | 2021-07-01 | 國立屏東科技大學 | Tig welding flux for super duplex stainless steel |
| CN113597358A (en) * | 2019-04-17 | 2021-11-02 | 安赛乐米塔尔公司 | Method for manufacturing an assembly by Submerged Arc Welding (SAW) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1211182C (en) * | 2002-10-15 | 2005-07-20 | 中国航空工业第一集团公司北京航空制造工程研究所 | Welding flux for stainless steel non-consumable electrode argon arc welding |
| CN1449886A (en) * | 2003-04-22 | 2003-10-22 | 虞选勇 | Stainless steel soldering flux |
| CN1733416A (en) * | 2005-07-19 | 2006-02-15 | 兰州理工大学 | Activator for Gas Tungsten Arc Welding of Stainless Steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804531A (en) * | 2010-03-04 | 2010-08-18 | 吴军 | Steam fog activating flux used for increasing welding penetration and spraying method thereof |
| CN101947703A (en) * | 2010-10-08 | 2011-01-19 | 中国航空工业集团公司北京航空制造工程研究所 | Active welding flux for high-temperature alloy fusion welding and preparation method thereof |
| CN101947703B (en) * | 2010-10-08 | 2012-07-04 | 中国航空工业集团公司北京航空制造工程研究所 | Active welding flux for high-temperature alloy fusion welding and preparation method thereof |
| CN102039498A (en) * | 2010-12-24 | 2011-05-04 | 中国船舶重工集团公司第七二五研究所 | Sintered flux for two phase stainless steel |
| CN102039498B (en) * | 2010-12-24 | 2012-08-29 | 中国船舶重工集团公司第七二五研究所 | Sintered flux for two phase stainless steel |
| CN104476015B (en) * | 2014-10-31 | 2019-01-01 | 天津市宏远钛铁有限公司 | A kind of titanium alloy welding compound and welding method |
| CN104476015A (en) * | 2014-10-31 | 2015-04-01 | 天津市宏远钛铁有限公司 | Titanium alloy solder and soldering method thereof |
| CN107214439A (en) * | 2017-07-17 | 2017-09-29 | 广西百色银海铝业有限责任公司 | A kind of cast iron solder flux and welding method |
| CN108637529A (en) * | 2018-05-22 | 2018-10-12 | 昆山华恒焊接股份有限公司 | A kind of austenitic stainless steel argon tungsten-arc welding activating agent and its preparation method and application |
| CN109175693A (en) * | 2018-10-14 | 2019-01-11 | 创为（三明）技术服务有限公司 | Single laser welding method for molybdenum plate |
| CN109175693B (en) * | 2018-10-14 | 2022-05-13 | 创为（三明）技术服务有限公司 | Single laser welding method for molybdenum plate |
| CN113597358A (en) * | 2019-04-17 | 2021-11-02 | 安赛乐米塔尔公司 | Method for manufacturing an assembly by Submerged Arc Welding (SAW) |
| CN113597358B (en) * | 2019-04-17 | 2024-01-09 | 安赛乐米塔尔公司 | Method for manufacturing an assembly by Submerged Arc Welding (SAW) |
| TWI732689B (en) * | 2019-12-12 | 2021-07-01 | 國立屏東科技大學 | Tig welding flux for super duplex stainless steel |
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