CN1470356A - Bismuthum-free fine-diameter stainless steel cored welding wire - Google Patents
Bismuthum-free fine-diameter stainless steel cored welding wire Download PDFInfo
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- CN1470356A CN1470356A CNA031466478A CN03146647A CN1470356A CN 1470356 A CN1470356 A CN 1470356A CN A031466478 A CNA031466478 A CN A031466478A CN 03146647 A CN03146647 A CN 03146647A CN 1470356 A CN1470356 A CN 1470356A
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- 238000003466 welding Methods 0.000 title abstract description 40
- 229910001220 stainless steel Inorganic materials 0.000 title abstract description 18
- 239000010935 stainless steel Substances 0.000 title abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910018134 Al-Mg Inorganic materials 0.000 claims abstract description 10
- 229910018467 Al—Mg Inorganic materials 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 9
- 229910052797 bismuth Inorganic materials 0.000 claims description 10
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 229940079593 drug Drugs 0.000 abstract description 3
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052845 zircon Inorganic materials 0.000 abstract 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 63
- 239000002893 slag Substances 0.000 description 51
- 238000012360 testing method Methods 0.000 description 23
- 239000000203 mixture Substances 0.000 description 20
- 229910004298 SiO 2 Inorganic materials 0.000 description 11
- 229910010413 TiO 2 Inorganic materials 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000011812 mixed powder Substances 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005491 wire drawing Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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Abstract
The invention is bismuthless stainless steel drug core welding stick. In current craft, Bi content is more than 0.001%, it is easy to increase the sensitivity of welding interface heat crack. The drug core comprises: 20-0% natural rutile, 5-15% zircon, 4-12% quartz, 2-10% Al-Mg alloy, 20-25% Cr, 5-8% Ni, 9.5-24% Fe, 0.5-1.5% Sb2O3. The tie-in has a high heat-crack resistant performance and decreases the possibility of crack.
Description
Technical field
The thin footpath of no bismuth stainless flux-cored wire belongs to the welding field in the Materials Processing Engineering.
Background technology
Flux-cored wire is a kind of good novel welding material, and it is good to have processing performance, stable mechanical property, production efficiency height, characteristics such as integrated cost is low.Be widely used in industries such as shipbuilding, petrochemical industry, pressure vessel, steel construction and engineering machinery.Flux-cored wire is used for the history that stainless welding has only short twenty or thirty year.Compare with corresponding welding rod, solid welding wire with the stainless flux-cored wire soldering stainless steel, it is low to have an integrated cost, and processing performance is good, and it is little to splash than solid welding wire, and electric arc is steady, is shaped the characteristics that all-position welding is good.
In existing stainless flux-cored wire is produced,, in the medicine core, added the oxide of bismuth-containing in order to improve its removability of slag.Like this, element Bi just along with the droplet transfer in weld seam, make that the content of Bi is far longer than 0.001% in the deposited metal.And Bi content surpasses 0.001% in the deposited metal, can increase the fire check sensitiveness of welding point.Such welding point can rupture after work a period of time at higher temperature (being generally more than 700 ℃).This mainly be because: (1) causes embrittlement of grain boundaries because the Bi element solidifies at column crystal crystal boundary place and separates out.(2) because Bi adds with the form of its oxide, this oxide can bring out the generation that transcrystalline solidifies, and in solidify the process that discharges stress by transcrystalline, can cause the concentrating of plastic deformation at crystal boundary place.(3) element Bi has promoted to cause the separating out of material of embrittlement of grain boundaries.
Current research also is in the starting stage to no bismuth flux-cored wire both at home and abroad, does not see relevant patent and bibliographical information.
Summary of the invention
The present invention adopts the oxide that does not add bismuth-containing in welding wire medicine core, but passes through to add its substitute, and reasonably adjusts the method for drug core component, changes the composition and the structure of slag, reaches the purpose of improving deslag performance.Thereby avoid the Bi in the deposited metal to increase welding point fire check sensitiveness.Make and adopt the joint of this stainless flux-cored wire welding to have high heat crack resistance, reduce the possibility that fracture takes place for it effectively when hot operation.This invention is compared with existing domestic product, has improved the reliability of working under the stainless steel welded joint condition of high temperature.This is to petrochemical industry, and industries such as pressure vessel reduce cost to enhance productivity and are significant.
The invention provides the thin footpath of a kind of no bismuth stainless flux-cored wire, it is characterized in that its medicine core comprises the material of following mass percent:
The TiO of 20-40%
2, 5-15%ZrO
2, the SiO of 4-12%
2, the Al-Mg alloy of 2-10%, the Cr of 20-25%, the Ni of 5-8%, the Fe of 9.5-24%, the Sb of 0.5-1.5%
2O
3
TiO
2: be that slag forms component, can improve the covering performance and the weld seam removability of slag of slag.In addition, it also plays electric arc is concentrated, and is stable, thereby reduces the effect of splashing.The quality percentage composition is: 20-40%.
ZrO
2: mainly play slag making, adjust the physical and chemical performance of slag, improve the removability of slag, the quality percentage composition is: 5-15%.
SiO
2: mainly play fluxing effect, reduce the basicity of slag, adjust the physical and chemical performance of slag, the quality percentage composition is: 4-12%.
The Al-Mg alloy: main effect is deoxidation, the Al that generates after the deoxidation
2O
3, MgO has fluxing effect.The quality percentage composition is: 2-10%.
Cr powder: to the weld metal transition alloy elements.The quality percentage composition is: 20 25%.
Ni powder: to the weld metal transition alloy elements.The quality percentage composition is: 5-8%.
Fe powder:, improve conductance to the weld seam transition metal.The quality percentage composition is: 9.5-24%.
Sb
2O
3: improve deslag performance.The quality percentage composition is: 0.5-1.5%.
In original stainless flux-cored wire was produced, the oxide that adds bismuth-containing mainly was in order to improve the deslag performance of slag.So the present invention sets about from the factor that research influences the removability of slag, by the substitute that adds bismuth oxide, the composition of adjusting the medicine core, change the composition and the structure of slag, reach the purpose of improving deslag performance.
For the influence factor of the removability of slag, mainly be two aspects of physical factor and chemical factor.For the influence of physical factor, mainly be meant slag that the adjusting owing to fusing point and viscosity causes sprawl and soak into whether suitable, and the difficulty or ease that come off of the skull that causes owing to the difference of linear expansion coefficient.And mainly be the effect of spinel structure for the influence on the chemical sense.
With regard to the austenitic stainless steel welding, its linear expansion coefficient height is so in the adjustment of prescription, the increase slag is easier to accomplish with the linear expansion coefficient difference this point ratio of weld metal.So the present invention focuses on the viscosity of adjusting slag, on fusing point and the chemical composition.
At first, the present invention is by adding antimony bloom (Sb
2O
3), substitute the oxide of bismuth-containing.Sb
2O
3Crystal belongs to orthorhombic system, and crystal often is column or tabular, and aggregate is column, sheet, featheriness, 656 ℃ of fusing points, relative density about 5.8.Because Sb
2O
3Relative density is bigger, than the key component of slag: TiO
2,
SiO
2, ZrO
2Deng relative density all want greatly, and fusing point is all lower than them.Therefore, in the process that forms slag, it is distributed in the inner surface of slag, directly contacts with weld metal, and is featheriness, easily separates with weld metal, thereby slag is easily come off, and shows the good removability of slag.Add the Sb of trace in the stainless steel, do not increase its fire check sensitiveness, have no adverse effects.Addition is that the 0.5-1.5% of medicine core weight is comparatively suitable generally speaking.
In addition, the present invention adopts TiO
2-SiO
2-ZrO
2Slag system can be by adjusting TiO
2With SiO
2Ratio change the viscosity of slag.When viscosity coefficient of dross is lower, when wellability is bad, be easy to distribute to the weld metal both sides, cause slag inclusion at welding toe, or can not evenly cover weld metal, produce the dry slag phenomenon.The present invention is adding Sb
2O
3The basis on, by adjusting TiO
2With SiO
2Ratio (TiO
2/ SiO
2: 2.5-7), add suitable ZrO
2, and the dystectic Al that forms by the Al-Mg alloy oxidation
2O
3, MgO waits viscosity and the fusing point of regulating slag, make it in suitable scope, to reach the purpose of improving the removability of slag.
The microstructure of the removability of slag and slag has suitable confidential relation.By observation to a large amount of dry slag test specimens, check and analysis, find: the main cause of dry slag is that the oxidisability of acid slag system has formed FeO, the oxide of chromium and manganese by force.Like this, there is Cr in the slag
2O
3, Al
2O
3, Fe
2O
3, Mn
2O
3Combine with oxides, divalent FeO, MnO etc. in the slag and form so-called spinelle (MnOMn etc. trivalent
2O
3) complex chemical compound, this layer oxide is bonded on the weld metal ground surface securely, so cause dry slag phenomenon seriously.The present invention adds Sb by a large amount of tests
2O
3Form easy stratum disjunction, and rationally adjust the chemical composition (typical composition sees Table 3 for example) of slag, thus this microstructure that slags, make slag after solidifying, form netted contact between weld seam and the skull, between has formed one deck barrier film, slackens the cementation of FeO.Make weld seam have the good removability of slag, avoided the adding of bismuth oxide.
Preparation method of the present invention is a prior art, may further comprise the steps:
1, austenic stainless steel belt is rolled into U-shaped;
2, in U-lag, add medicinal powder of the present invention;
3, U-lag is healed up, makes above-mentioned medicinal powder parcel wherein, by wire drawing die, by the road drawing,
Tube reducing makes its diameter reach 1.2mm at last.
Description of drawings
Fig. 1: hot crack(ing) test test plate (panel) groove;
Fig. 2: removability of slag experimental rig;
Fig. 3: removability of slag test test plate (panel) groove;
Wherein 1 is steel ball, and 2 is support, and 3 is test plate (panel).
The specific embodiment
The made welding wire of the present invention adopts " the passive drawing formula of the FCWM50 flux-cored wire machine " produced by Kunming Heavy Machinery Factory to make: selecting width for use is 7-10mm, and thickness is the austenic stainless steel belt of 0.28-0.5mm.Earlier it is rolled into U-shaped, adding granularity again in U-lag was the mixed powder of 60-120 mesh sieve, and the filling rate of medicinal powder (medicinal powder weight accounts for the percentage of welding wire gross weight) is 15-20%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.From the welding wire cross section, it is a bridging arrangement.
Choosing several no bismuth flux-cored wire example of the present invention compares with existing flux-cored wire welding effect commonly used.The specific embodiment following (all embodiment welding wires are all made " the passive drawing formula of FCWM50 flux-cored wire machine " by Kunming Heavy Machinery Factory and made):
1. selecting width for use is 8mm, and thickness is the austenic stainless steel belt of 0.3mm.Earlier it is rolled into U-shaped.Get TiO
2Powder 30g, SiO
2Powder 4g, ZrO
2Powder 6g, Al-Mg alloy powder 10g, Sb
2O
3Powder 0.5g, Cr powder 25g, Ni powder 7g, Fe powder 17.5g (granularity of the powder of getting is for passing through 60 purpose sieves).The various powder of get are put into mixed powder machine mixed 10 minutes, then mixed-powder is added in the stainless steel trough of belt of U-shaped, filling rate is 20%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.The test of welding wire result of use sees Table 1.
2. selecting width for use is 7mm, and thickness is the austenic stainless steel belt of 0.25mm.Earlier it is rolled into U-shaped.Get TiO
2Powder 35g, SiO
2Powder 8g, ZrO
2Powder 7g, Al-Mg alloy powder 6g, Sb
2O
3Powder 1g, Cr powder 18g, Ni powder 5g, Fe powder 20g (granularity of the powder of getting is for passing through 80 purpose sieves).The various powder of get are put into mixed powder machine mixed 10 minutes, then mixed-powder is added in the stainless steel trough of belt of U-shaped, filling rate is 16%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.The test of welding wire result of use sees Table 1.
3. selecting width for use is 9mm, and thickness is the austenic stainless steel belt of 0.4mm.Earlier it is rolled into U-shaped.Get TiO
2Powder 25g, SiO
2Powder 10g, ZrO
2Powder 10g, Al-Mg alloy powder 8g, Sb
2O
3Powder 0.5g, Cr powder 18g, Ni powder 6g, Fe powder 22.5g (granularity of the powder of getting is for passing through 90 purpose sieves).The various powder of get are put into mixed powder machine mixed 10 minutes, then mixed-powder is added in the stainless steel trough of belt of U-shaped, filling rate is 17%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.The test of welding wire result of use sees Table 1.
4. selecting width for use is 10mm, and thickness is the austenic stainless steel belt of 0.5mm.Earlier it is rolled into U-shaped.Get TiO
2Powder 20g, SiO
2Powder 8g, ZrO
2Powder 15g, Al-Mg alloy powder 2g, Sb
2O
3Powder 1g, Cr powder 22g, Ni powder 8g, Fe powder 24g (granularity of the powder of getting is for passing through 120 purpose sieves).The various powder of get are put into mixed powder machine mixed 10 minutes, then mixed-powder is added in the stainless steel trough of belt of U-shaped, filling rate is 15%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.The test of welding wire result of use sees Table 1.
5. selecting width for use is 9mm, and thickness is the austenic stainless steel belt of 0.4mm.Earlier it is rolled into U-shaped.Get TiO
2Powder 40g, SiO
2Powder 12g, ZrO
2Powder 5g, Al-Mg alloy powder 6g, Sb
2O
3Powder 1.5g, Cr powder 20g, Ni powder 6g, Fe powder 9.5g (granularity of the powder of getting is for passing through 80 purpose sieves).The various powder of get are put into mixed powder machine mixed 10 minutes, then mixed-powder is added in the stainless steel trough of belt of U-shaped, filling rate is 16%.U-lag is healed up, make the medicinal powder parcel wherein.Make it by diameter be respectively then: the wire drawing die of 2.4mm, 2.3mm, 2.2mm, 2.1mm, 2.0mm, 1.9mm, 1.8mm, 1.7mm, 1.6mm, 1.5mm, 1.4mm, 1.3mm, 1.2mm, by road drawing, tube reducing, make its diameter reach 1.2mm at last.The test of welding wire result of use sees Table 1.
The hot crack(ing) test method is as follows in the table 1: select suitable test plate (panel) for use, its chemical composition such as table 2 are opened y-shaped groove in the above, and its size such as Fig. 1 weld the weld seam of a segment length 80mm.Then this test specimen is heated to 500-800 ℃ with the speed of 1.6 ℃/min, is incubated 100 hours, and then with its speed cool to room temperature with 2.5 ℃/min.See if there is the crackle appearance from the cross section of y-shaped groove.
Removability of slag test method is as follows: the flux-cored wire of gained of the present invention is carried out the drop weight method test of built-up welding in dull and stereotyped built-up welding and the 45 ° of double V-grooves.Experimental rig such as Fig. 2, the slag rate of taking off that records weld seam is on average more than 96%.Concrete grammar is: the heavy 3000g of steel ball, steel ball is zero the free falling body state hammering test plate (panel) welding bead back side with the initial velocity, postwelding stops hammering after 1 minute during the flat board built-up welding, the test stand height is 500mm, during built-up welding, the test stand height transfers to 100mm, pounds with steel ball immediately after the built-up welding and hits the welding bead back side in the groove, pound during ground floor 5 times, the second layer is pounded later on 3 times.Taking off the slag rate is calculated as follows:
D＝{L-(L
0+0.5L
1+0.2L
2)}/L×100％
In the formula: D---take off slag rate (%)
L---welding bead total length (mm)
L
0---do not take off slag length (mm)
L
1---slight dry slag length (mm)
In the test, material of test piece is the 18-8 stainless steel, and its chemical composition sees Table 2, and double V-groove test plate (panel) size as shown in Figure 3.
As can be seen from Table 1, the weld seam that welds with welding wire constructed in accordance does not have the fire check generation, and the removability of slag is good, and welding technological properties is good.Fire check has then appearred in the weld seam with general welding wire welding.Therefore, the present invention has well solved with stainless flux-cored wire welding workpiece and has been prone to this difficult problem of fire check.Table 1 Comparative Examples and the contrast of embodiment effect
Table 2 takes off slag and hot crack(ing) test test plate (panel) chemical composition
Table 3 slag composition
| Composition | C | ?Cr | ?Ni | ?Mn | ?Si | ?S | P |
| Content (wt%) | 0.048 | ?18.58 | ?9.41 | ?1.16 | ?1.33 | ?＜0.05 | ＜0.05 |
| Composition | TiO 2 | ?SiO 2 | ?MnO | ?Na 2O | ?Al 2O 3 | ?K 2O | ?CaO | ?Cr 2O 3 | ?FeO | ?ZrO 2 |
| Outer surface content (wt%) | 16.60 | ?20.27 | ?30.83 | ?6.58 | ?4.59 | ?2.09 | ?0.16 | ?10.13 | ?4.09 | ?4.64 |
| Inner surface content (wt%) | 24.41 | ?23.88 | ?20.19 | ?7.12 | ?5.04 | ?0.85 | ?0.24 | ?9.63 | ?8.48 | ?0.16 |
Claims (1)
1, the thin footpath of a kind of no bismuth stainless flux-cored wire is characterized in that described medicine core comprises the TiO of the material of following mass percent: 20-40%
2, the ZrO of 5-15%
2, the SiO of 4-12%
2, the Al-Mg alloy of 2-10%, the Cr of 20-25%, the Ni of 5-8%, the Fe of 9.5-24%, the Sb of 0.5-1.5%
2O
3
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|---|---|---|---|
| CN 03146647 CN1219625C (en) | 2003-07-11 | 2003-07-11 | Bismuthum-free fine-diameter stainless steel cored welding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146647 CN1219625C (en) | 2003-07-11 | 2003-07-11 | Bismuthum-free fine-diameter stainless steel cored welding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1470356A true CN1470356A (en) | 2004-01-28 |
| CN1219625C CN1219625C (en) | 2005-09-21 |
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|---|---|---|---|
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| CN100382924C (en) * | 2006-04-06 | 2008-04-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| CN100389000C (en) * | 2005-12-02 | 2008-05-21 | 北京工业大学 | Nb-containing stainless flux-cored wire with favorite detachability |
| CN100423881C (en) * | 2006-07-14 | 2008-10-08 | 中国石油化工股份有限公司 | Metal core welding wire for submerged arc welding of A304 and A304L austenitic stainess steel |
| CN101966628A (en) * | 2010-09-27 | 2011-02-09 | 中国船舶重工集团公司第七二五研究所 | Chemical powder components of 2507 type super double-phase stainless steel flux-cored wire |
| CN102091881A (en) * | 2009-12-15 | 2011-06-15 | 株式会社神户制钢所 | Flux-cored wire for stainless steel arc welding |
| CN104858568A (en) * | 2015-03-31 | 2015-08-26 | 上海焊接器材有限公司 | Gas shielded flux cored welding wire resistant to sulfuric acid dew point corrosion, and preparation method thereof |
| CN108015453A (en) * | 2017-12-05 | 2018-05-11 | 河南科技大学 | A kind of nickel-base alloy submerged-arc welding sintered flux and preparation method and application |
| CN108971798A (en) * | 2018-09-29 | 2018-12-11 | 四川大西洋焊接材料股份有限公司 | Mixed gas protected austenitic stainless steel special welding wire and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389000C (en) * | 2005-12-02 | 2008-05-21 | 北京工业大学 | Nb-containing stainless flux-cored wire with favorite detachability |
| CN100382924C (en) * | 2006-04-06 | 2008-04-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| CN100423881C (en) * | 2006-07-14 | 2008-10-08 | 中国石油化工股份有限公司 | Metal core welding wire for submerged arc welding of A304 and A304L austenitic stainess steel |
| CN102091881A (en) * | 2009-12-15 | 2011-06-15 | 株式会社神户制钢所 | Flux-cored wire for stainless steel arc welding |
| CN102091881B (en) * | 2009-12-15 | 2015-06-24 | 株式会社神户制钢所 | Flux-cored wire for stainless steel arc welding |
| CN101966628A (en) * | 2010-09-27 | 2011-02-09 | 中国船舶重工集团公司第七二五研究所 | Chemical powder components of 2507 type super double-phase stainless steel flux-cored wire |
| CN104858568A (en) * | 2015-03-31 | 2015-08-26 | 上海焊接器材有限公司 | Gas shielded flux cored welding wire resistant to sulfuric acid dew point corrosion, and preparation method thereof |
| CN108015453A (en) * | 2017-12-05 | 2018-05-11 | 河南科技大学 | A kind of nickel-base alloy submerged-arc welding sintered flux and preparation method and application |
| CN108971798A (en) * | 2018-09-29 | 2018-12-11 | 四川大西洋焊接材料股份有限公司 | Mixed gas protected austenitic stainless steel special welding wire and preparation method |
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