TW202122199A - Tig welding flux for super duplex stainless steel - Google Patents
Tig welding flux for super duplex stainless steel Download PDFInfo
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- TW202122199A TW202122199A TW109133135A TW109133135A TW202122199A TW 202122199 A TW202122199 A TW 202122199A TW 109133135 A TW109133135 A TW 109133135A TW 109133135 A TW109133135 A TW 109133135A TW 202122199 A TW202122199 A TW 202122199A
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- stainless steel
- duplex stainless
- arc welding
- argon arc
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- 238000003466 welding Methods 0.000 title claims abstract description 119
- 229910001039 duplex stainless steel Inorganic materials 0.000 title claims abstract description 91
- 230000004907 flux Effects 0.000 title claims abstract description 69
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 claims abstract description 28
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 13
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 claims abstract description 11
- 229910007948 ZrB2 Inorganic materials 0.000 claims abstract description 10
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 claims abstract description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 182
- 229910052786 argon Inorganic materials 0.000 claims description 91
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 28
- 229940093474 manganese carbonate Drugs 0.000 claims description 28
- 235000006748 manganese carbonate Nutrition 0.000 claims description 28
- 239000011656 manganese carbonate Substances 0.000 claims description 28
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 claims description 28
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 claims description 27
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 abstract description 22
- 230000007797 corrosion Effects 0.000 abstract description 22
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 abstract 1
- 229910007935 ZrBr2 Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 55
- 239000011324 bead Substances 0.000 description 46
- 229910052742 iron Inorganic materials 0.000 description 27
- 239000000203 mixture Substances 0.000 description 12
- 229910000859 α-Fe Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- 229910001114 SAF 2507 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229940117975 chromium trioxide Drugs 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910020599 Co 3 O 4 Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000593 SAF 2205 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical class [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
Description
本發明係關於一種助銲劑，尤其係一種用於氬弧銲接超級型雙相不銹鋼之助銲劑。The invention relates to a flux, especially a flux for argon arc welding of super duplex stainless steel.
雙相不銹鋼（duplex stainless steel）屬於鐵鉻鎳系不銹鋼，其顯微組織為由肥粒鐵（ferrite）與沃斯田鐵（austenite）組成之雙相結構，其中肥粒鐵或沃斯田鐵含量需大於30%。雙相不銹鋼因存在雙相結構而使其兼具肥粒鐵不銹鋼與沃斯田鐵不銹鋼的優點。相較於肥粒鐵不銹鋼，雙相不銹鋼除了具較佳的破裂韌性、耐晶間腐蝕性及銲接性外，亦同時保留肥粒鐵不銹鋼熱膨脹係數小、熱傳導係數高的特點。相較於沃斯田鐵不銹鋼，雙相不銹鋼降伏強度是沃斯田鐵不銹鋼的兩倍，耐氯離子應力腐蝕破裂能力顯著高於SUS 304沃斯田鐵不銹鋼，而其耐孔蝕性與耐縫隙腐蝕性則和SUS 316沃斯田鐵不銹鋼相當。Duplex stainless steel (duplex stainless steel) belongs to the iron-chromium-nickel series stainless steel. Its microstructure is a duplex structure composed of ferrite and austenitic iron. Among them, the ferrite or austenitic iron The content must be greater than 30%. Due to the duplex structure of duplex stainless steel, it has the advantages of both fat grain iron stainless steel and austenitic iron stainless steel. Compared with ferrous iron stainless steel, duplex stainless steel not only has better fracture toughness, intergranular corrosion resistance and weldability, but also retains the characteristics of low thermal expansion coefficient and high thermal conductivity of ferrous iron stainless steel. Compared with austenitic stainless steel, duplex stainless steel has twice the yield strength of austenitic stainless steel, and its resistance to chloride ion stress corrosion cracking is significantly higher than that of SUS 304 austenitic stainless steel, and its pitting resistance and resistance The crevice corrosion is equivalent to SUS 316 austenitic stainless steel.
超級型雙相不銹鋼代表性鋼種為SAF 2507/UNS S32750。相較於標準型雙相不銹鋼（代表性鋼種為SAF 2205/UNS S32205），由於超級型雙相不銹鋼的特點是超低碳、高鉬及高氮，因此其具有優異的耐孔蝕性與耐縫隙腐蝕性。由於超級型雙相不銹鋼是集耐腐蝕性佳、機械強度良好，及易於製造加工等諸多優異性能於一身的特殊鋼材，因此廣泛應用於冷熱水交換器、石化壓力桶槽、油氣輸送管線及海水淡化過濾罐等高值化金屬製品。The representative steel grade of super duplex stainless steel is SAF 2507/UNS S32750. Compared with the standard duplex stainless steel (the representative steel grade is SAF 2205/UNS S32205), the super duplex stainless steel is characterized by ultra-low carbon, high molybdenum and high nitrogen, so it has excellent pitting corrosion resistance and resistance. Crevice corrosion. Because super duplex stainless steel is a special steel with good corrosion resistance, good mechanical strength, and easy manufacturing and processing, it is widely used in cold and hot water exchangers, petrochemical pressure tanks, oil and gas pipelines, and seawater. Desalination of high-value metal products such as filter tanks.
超級型雙相不銹鋼銲接品質取決於銲道與熱影響區（weld zone）中之肥粒鐵/沃斯田鐵含量百分比。然因銲接熱循環的高溫急冷效應，容易造成超級型雙相不銹鋼銲道與熱影響區單相肥粒鐵化，此為超級型雙相不銹鋼施銲的最大難點。簡言之，超級型雙相不銹鋼銲接後，將會造成銲道與熱影響區存在較高含量百分比的肥粒鐵結構，進而降低銲道與熱影響區的耐蝕性。由此可知，當銲接超級型雙相不銹鋼時，銲道與熱影響區的肥粒鐵/沃斯田鐵含量百分比必須嚴格控制（肥粒鐵含量百分比應低於50%或沃斯田鐵含量百分比應高於50%）。The welding quality of super duplex stainless steel depends on the percentage of ferrite iron/austrian iron in the weld bead and the weld zone. However, due to the high temperature and rapid cooling effect of the welding thermal cycle, it is easy to cause the super duplex stainless steel weld bead and the heat-affected zone to iron the single-phase fertilizer grains. This is the biggest difficulty in welding super duplex stainless steel. In short, after the super duplex stainless steel is welded, there will be a higher percentage of ferrous iron structure in the weld bead and the heat-affected zone, thereby reducing the corrosion resistance of the weld bead and the heat-affected zone. It can be seen that when welding super duplex stainless steel, the percentage of ferrite iron/austrian iron content in the weld bead and heat-affected zone must be strictly controlled (the percentage of ferrite iron content should be less than 50% or the austenitic iron content The percentage should be higher than 50%).
中華民國專利第I633059號揭露一種習用氬弧銲接助銲劑，包含以重量百分比計25～35%二氧化矽、20～25%三氧化二鉻、10～20%三氧化鉬、10～15%氧化鎳、5～10%氧化鐵、5～10%四氧化三鈷、5～10%二氧化錳及3～5%氧化銅，使用該習用氬弧銲接助銲劑於氬弧銲接標準型雙相不銹鋼（如SAF 2205/UNS S32205）時，可以提高該銲道深寬比及其耐蝕性。然而，倘若將該習用氬弧銲接助銲劑用於氬弧銲接超級型雙相不銹鋼（SAF 2507/UNS S32750）時，無法兼顧提高銲道深寬比及其耐蝕性，以及無法避免發生銲接偏弧問題。The Republic of China Patent No. I633059 discloses a conventional argon arc welding flux, which contains 25 to 35% silicon dioxide, 20 to 25% chromium trioxide, 10 to 20% molybdenum trioxide, and 10 to 15% oxidation by weight. Nickel, 5-10% iron oxide, 5-10% cobalt tetroxide, 5-10% manganese dioxide and 3-5% copper oxide, use this conventional argon arc welding flux to weld standard duplex stainless steel (such as SAF) 2205/UNS S32205), the aspect ratio of the weld bead and its corrosion resistance can be improved. However, if the conventional argon arc welding flux is used for argon arc welding of super duplex stainless steel (SAF 2507/UNS S32750), it will not be possible to improve the weld bead aspect ratio and its corrosion resistance, and it is impossible to avoid welding arc problem.
有鑑於此，確實有必要提供一種可以用於氬弧銲接超級型雙相不銹鋼工件的超級型雙相不銹鋼氬弧銲接助銲劑。In view of this, it is indeed necessary to provide a super duplex stainless steel argon arc welding flux that can be used for argon arc welding of super duplex stainless steel workpieces.
為解決上述問題，本發明之目的係提供一種超級型雙相不銹鋼氬弧銲接助銲劑，適合應用於氬弧銲接超級型雙相不銹鋼工件。In order to solve the above problems, the object of the present invention is to provide a super duplex stainless steel argon arc welding flux, which is suitable for argon arc welding of super duplex stainless steel workpieces.
本發明全文所記載之元件及構件使用「一」或「一個」之量詞，僅是為了方便使用且提供本發明範圍的通常意義；於本發明中應被解讀為包括一個或至少一個，且單一的概念也包括複數的情況，除非其明顯意指其他意思。The use of the quantifier "one" or "one" in the elements and components described in the full text of the present invention is only for the convenience of use and to provide the general meaning of the scope of the present invention; in the present invention, it should be interpreted as including one or at least one, and single The concept of also includes the plural, unless it clearly implies other meanings.
本發明提供一種超級型雙相不銹鋼氬弧銲接助銲劑係可以包含以重量百分比計20～30%的二氧化矽、20～25%的二氧化鈦、15～20%的二氧化釩、10～15%的三氧化鉬、10～15%的二硼化鋯、5～10%的氮化鋁、5～10%的碳酸錳及5～10%的碳酸鎳。The invention provides a super duplex stainless steel argon arc welding flux system that can contain 20-30% silicon dioxide, 20-25% titanium dioxide, 15-20% vanadium dioxide, and 10-15% by weight. Molybdenum trioxide, 10-15% zirconium diboride, 5-10% aluminum nitride, 5-10% manganese carbonate and 5-10% nickel carbonate.
據此，當使用該超級型雙相不銹鋼氬弧銲接助銲劑來進行超級型雙相不銹鋼工件的氬弧銲接時，藉由其包含特定之二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳之組分配比，在二超級型雙相不銹鋼工件之間所形成之銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生，為本發明之功效。Accordingly, when the super duplex stainless steel argon arc welding flux is used for argon arc welding of super duplex stainless steel workpieces, it contains specific silicon dioxide, titanium dioxide, vanadium dioxide, molybdenum trioxide, The composition ratio of zirconium diboride, aluminum nitride, manganese carbonate and nickel carbonate. The weld bead formed between the two super duplex stainless steel workpieces has improved aspect ratio and corrosion resistance, and is used in the argon arc welding process. There is also no arc welding in the middle, which is the effect of the present invention.
其中，該氮化鋁含量可以介於5～9%之間、該碳酸錳含量可以介於5～7%之間及該碳酸鎳含量可以介於5～7%之間。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be between 5-9%, the manganese carbonate content may be between 5-7%, and the nickel carbonate content may be between 5-7%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該氮化鋁含量可以為9%、該碳酸錳含量可以為5%及該碳酸鎳含量可以為5%。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be 9%, the manganese carbonate content may be 5%, and the nickel carbonate content may be 5%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該氮化鋁含量可以為5%、該碳酸錳含量可以為6%及該碳酸鎳含量可以為5%。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be 5%, the manganese carbonate content may be 6%, and the nickel carbonate content may be 5%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該氮化鋁含量可以為5%、該碳酸錳含量可以為5%及該碳酸鎳含量可以為5%。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be 5%, the manganese carbonate content may be 5%, and the nickel carbonate content may be 5%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該氮化鋁含量可以為9%、該碳酸錳含量可以為5%及該碳酸鎳含量可以為6%。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be 9%, the manganese carbonate content may be 5%, and the nickel carbonate content may be 6%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該氮化鋁含量可以為6%、該碳酸錳含量可以為6%及該碳酸鎳含量可以為5%。如此，使形成於該二超級型雙相不銹鋼工件之間的銲道具有提高之深寬比與耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。Wherein, the aluminum nitride content may be 6%, the manganese carbonate content may be 6%, and the nickel carbonate content may be 5%. In this way, the weld bead formed between the two super duplex stainless steel workpieces has an improved aspect ratio and corrosion resistance, and no welding arc occurs during the argon arc welding process.
其中，該超級型雙相不銹鋼氬弧銲接助銲劑可以另包含一可揮發性溶劑。如此，使二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳粉末可以分散於該可揮發性溶劑中而形成泥漿狀，利於工者塗佈於該二超級型雙相不銹鋼工件之間。Wherein, the super duplex stainless steel argon arc welding flux may additionally contain a volatile solvent. In this way, silicon dioxide, titanium dioxide, vanadium dioxide, molybdenum trioxide, zirconium diboride, aluminum nitride, manganese carbonate and nickel carbonate powder can be dispersed in the volatile solvent to form a slurry, which is convenient for workers to apply It is arranged between the two super duplex stainless steel workpieces.
其中，該可揮發性溶劑可以包含甲醇、丙酮或異丙醇。如此，在將形成泥漿狀的超級雙相不銹鋼氬弧銲接助銲劑在塗佈於該二超級型雙相不銹鋼工件之間之後，可以快速揮發而有助於縮短工者待銲時間。Wherein, the volatile solvent may include methanol, acetone or isopropanol. In this way, after the slurry-like super duplex stainless steel argon arc welding flux is applied between the two super duplex stainless steel workpieces, it can quickly volatilize and help shorten the welding time of the worker.
其中，該超級型雙相不銹鋼氬弧銲接助銲劑的粉末粒徑可以介於50～90 μm之間。如此，該超級型雙相不銹鋼氬弧銲接助銲劑的粉末可以形成具有良好均一性的均勻混合物，可以均勻地塗佈於超級型雙相不銹鋼表面，且於氬弧銲接時能夠完全熔融，達到提高銲道深度之功效。此外，倘若使用粉末粒徑大於90 μm之該超級型雙相不銹鋼氬弧銲接助銲劑進行氬弧銲接，容易形成殘渣，而倘若使用粉末粒徑小於50 μm之該超級型雙相不銹鋼氬弧銲接助銲劑進行氬弧銲接，則必須使用更大量的該超級型雙相不銹鋼氬弧銲接助銲劑進行銲接，造成成本上的浪費。如此，粉末粒徑介於50～90 μm之間的超級型雙相不銹鋼氬弧銲接助銲劑，不僅可以防止形成殘渣，也可以降低製造成本。Wherein, the powder particle size of the super duplex stainless steel argon arc welding flux can be between 50 and 90 μm. In this way, the powder of the super duplex stainless steel argon arc welding flux can form a uniform mixture with good homogeneity, can be evenly coated on the super duplex stainless steel surface, and can be completely melted during argon arc welding, achieving improved The effect of weld bead depth. In addition, if the super duplex stainless steel argon arc welding flux with a powder particle size greater than 90 μm is used for argon arc welding, residues are easily formed, and if the super duplex stainless steel argon arc welding with a powder particle size less than 50 μm is used If the flux is used for argon arc welding, a larger amount of the super duplex stainless steel argon arc welding flux must be used for welding, resulting in waste of cost. In this way, the super duplex stainless steel argon arc welding flux with a powder particle size between 50 and 90 μm can not only prevent the formation of residues, but also reduce manufacturing costs.
因此，當使用本發明之超級型雙相不銹鋼氬弧銲接助銲劑來進行超級型雙相不銹鋼工件的氬弧銲接時，藉由其所包含之特定之二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳之組分配比，在該二超級型雙相不銹鋼工件之間所形成之銲道具有至少0.8以上之深寬比，縮小形成在該二超級型雙相不銹鋼工件之間的熱影響區（heat-affected zone，HAZ），進而降低熱變形及殘留應力的風險；並且，各銲道之沃斯田鐵含量百分比高於肥粒鐵含量百分比而可以提高銲道的耐蝕性，且於氬弧銲接過程中亦未發生銲接偏弧現象，為本發明之功效。Therefore, when the super duplex stainless steel argon arc welding flux of the present invention is used for argon arc welding of super duplex stainless steel workpieces, the specific silicon dioxide, titanium dioxide, vanadium dioxide, and three The composition ratio of molybdenum oxide, zirconium diboride, aluminum nitride, manganese carbonate and nickel carbonate. The weld bead formed between the two super duplex stainless steel workpieces has an aspect ratio of at least 0.8, which is reduced in The heat-affected zone (HAZ) between the two super duplex stainless steel workpieces, thereby reducing the risk of thermal deformation and residual stress; and the percentage of austite iron content in each weld bead is higher than that of fertilizer grain iron The content percentage can improve the corrosion resistance of the weld bead, and the arc phenomenon of welding does not occur during the argon arc welding process, which is the effect of the present invention.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：In order to make the above and other objectives, features and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention in conjunction with the accompanying drawings in detail as follows:
本發明之超級型雙相不銹鋼氬弧銲接助銲劑之一具體實施例，該超級型雙相不銹鋼氬弧銲接助銲劑以重量百分比計，係可以包含20～30%的二氧化矽、20～25%的二氧化鈦、15～20%的二氧化釩、10～15%的三氧化鉬、10～15%的二硼化鋯、5～10%的氮化鋁、5～10%的碳酸錳及5～10%的碳酸鎳。在另一具體實施例中，該氮化鋁含量為9%、該碳酸錳含量為5%及該碳酸鎳含量為5%。在另一具體實施例中，該氮化鋁含量為5%、該碳酸錳含量為6%及該碳酸鎳含量為5%。在另一具體實施例中，該氮化鋁含量為5%、該碳酸錳含量為5%及該碳酸鎳含量為5%。在另一具體實施例中，該氮化鋁含量為9%、該碳酸錳含量為5%及該碳酸鎳含量為6%。在另一具體實施例中，該氮化鋁含量為6%、該碳酸錳含量為6%及該碳酸鎳含量為5%。在另一具體實施例中，該氮化鋁含量為5%、該碳酸錳含量為10%及該碳酸鎳含量為5%。A specific embodiment of the super duplex stainless steel argon arc welding flux of the present invention. The super duplex stainless steel argon arc welding flux may contain 20-30% silicon dioxide and 20-25% by weight. % Titanium dioxide, 15-20% vanadium dioxide, 10-15% molybdenum trioxide, 10-15% zirconium diboride, 5-10% aluminum nitride, 5-10% manganese carbonate and 5 ~10% nickel carbonate. In another specific embodiment, the aluminum nitride content is 9%, the manganese carbonate content is 5%, and the nickel carbonate content is 5%. In another specific embodiment, the aluminum nitride content is 5%, the manganese carbonate content is 6%, and the nickel carbonate content is 5%. In another specific embodiment, the aluminum nitride content is 5%, the manganese carbonate content is 5%, and the nickel carbonate content is 5%. In another specific embodiment, the aluminum nitride content is 9%, the manganese carbonate content is 5%, and the nickel carbonate content is 6%. In another specific embodiment, the aluminum nitride content is 6%, the manganese carbonate content is 6%, and the nickel carbonate content is 5%. In another specific embodiment, the aluminum nitride content is 5%, the manganese carbonate content is 10%, and the nickel carbonate content is 5%.
當使用本發明之超級型雙相不銹鋼氬弧銲接助銲劑來進行超級型雙相不銹鋼工件的氬弧銲接時，透過特定組分配比之二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳，在二超級型雙相不銹鋼工件之間所形成之銲道具有至少0.8以上之深寬比，縮小形成在該二超級型雙相不銹鋼工件之間的熱影響區（heat-affected zone，HAZ），進而降低熱變形及殘留應力的風險；並且，該銲道之沃斯田鐵含量百分比高於肥粒鐵含量百分比而具有較佳耐蝕性，且於氬弧銲接過程中亦無銲接偏弧發生。When the super duplex stainless steel argon arc welding flux of the present invention is used for argon arc welding of super duplex stainless steel workpieces, the specific composition ratio of silicon dioxide, titanium dioxide, vanadium dioxide, molybdenum trioxide, and two Zirconium boride, aluminum nitride, manganese carbonate and nickel carbonate, the weld bead formed between the two super duplex stainless steel workpieces has an aspect ratio of at least 0.8, and it is reduced to be formed in the two super duplex stainless steel workpieces. The heat-affected zone (HAZ) between the heat-affected zone (HAZ), thereby reducing the risk of thermal deformation and residual stress; and the austenitic iron content percentage of the weld bead is higher than the fertilizer grain iron content percentage, which has better corrosion resistance. And there is no arc welding in the argon arc welding process.
在一具體實施例中，本發明之超級型雙相不銹鋼氬弧銲接助銲劑另可包含一可揮發性溶劑。在另一具體實施例中，該可揮發性溶劑包含但不限於甲醇、丙酮或異丙醇。In a specific embodiment, the super duplex stainless steel argon arc welding flux of the present invention may further include a volatile solvent. In another specific embodiment, the volatile solvent includes but is not limited to methanol, acetone or isopropanol.
在一具體實施例中，本發明之超級型雙相不銹鋼氬弧銲接助銲劑的粉末粒徑為介於50～90 μm之間。In a specific embodiment, the powder particle size of the super duplex stainless steel argon arc welding flux of the present invention is between 50 and 90 μm.
在一具體實施例中，本發明之超級型雙相不銹鋼氬弧銲接助銲劑所應用之超級型雙相不銹鋼種類包含但不限於UNS S32750和UNS S32760超級型雙相不銹鋼。In a specific embodiment, the types of super duplex stainless steel used in the super duplex stainless steel argon arc welding flux of the present invention include but are not limited to UNS S32750 and UNS S32760 super duplex stainless steel.
為了證實藉由本案所提供之超級型雙相不銹鋼氬弧銲接助銲劑確實能透過特定之二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳之組分配比的技術手段，達到兼顧提高銲道深寬比及其耐蝕性，以及無銲接偏弧發生之功效，遂進行以下之試驗：In order to verify that the super duplex stainless steel argon arc welding flux provided in this case can indeed pass through specific silicon dioxide, titanium dioxide, vanadium dioxide, molybdenum trioxide, zirconium diboride, aluminum nitride, manganese carbonate and carbonic acid The technical means of nickel composition ratio can achieve the effect of improving the aspect ratio of the weld bead and its corrosion resistance, as well as the effect of no arc welding. Then the following tests were carried out:
試驗（A）Test (A)
依據下列第1表所示之組分配比，將二氧化矽、二氧化鈦、二氧化釩、三氧化鉬、二硼化鋯、氮化鋁、碳酸錳及碳酸鎳等粉末混合後，以丙酮溶劑配製成泥漿狀，以製得第A01～A15組之氬弧銲接助銲劑。According to the composition ratio shown in Table 1 below, mix the powders of silicon dioxide, titanium dioxide, vanadium dioxide, molybdenum trioxide, zirconium diboride, aluminum nitride, manganese carbonate and nickel carbonate, and then mix them with acetone solvent. It is made into a slurry to prepare the A01~A15 group of argon arc welding flux.
第1表、第A01～A15組之氬弧銲接助銲劑之組分配比
依據下列第2表所示之組分配比，將二氧化矽、三氧化二鉻、三氧化鉬、氧化鎳、氧化鐵、四氧化三鈷、二氧化錳及氧化銅等粉末混合後，以丙酮溶劑配製成泥漿狀，以製得第A16組之習用氬弧銲接助銲劑。According to the composition ratio shown in Table 2 below, mix the powders of silicon dioxide, chromium trioxide, molybdenum trioxide, nickel oxide, iron oxide, cobalt tetroxide, manganese dioxide and copper oxide, and then prepare them with acetone solvent In a slurry form, the conventional argon arc welding flux of group A16 can be obtained.
第2表、第A16組之習用氬弧銲接助銲劑之組分配比
試驗（B）Test (B)
利用粒度為400號數之碳化矽砂紙清除厚度為6 mm之UNS S32750超級型雙相不銹鋼工件的表面上之汙染物後，再以丙酮擦拭該超級型雙相不銹鋼工件。之後，利用毛刷將泥漿狀之第A01～A16組的氬弧銲接助銲劑塗佈於超級型雙相不銹鋼工件的表面，待丙酮溶劑完全揮發後再進行氬弧銲接，以獲得第B01～B16組的銲件（如第3表所示）。另，第B17組係在未塗佈任何氬弧銲接助銲劑的條件下，以氬弧銲接方法銲接超級型雙相不銹鋼工件所形成的銲件。After removing the contaminants on the surface of the UNS S32750 super duplex stainless steel workpiece with a thickness of 6 mm using silicon carbide sandpaper with a particle size of 400, wipe the super duplex stainless steel workpiece with acetone. After that, use a brush to apply the slurry-like argon arc welding flux of groups A01 to A16 on the surface of the super duplex stainless steel workpiece, and perform argon arc welding after the acetone solvent is completely volatilized to obtain B01 to B16 Group of weldments (as shown in Table 3). In addition, the B17 group is a weldment formed by welding super duplex stainless steel workpieces by argon arc welding without applying any argon arc welding flux.
第3表、用以形成第B01～B17組銲件所使用的之氬弧銲接助銲劑
在進行氬弧銲接時，記錄是否有銲接偏弧現象的發生；且在進行氬弧銲接之後，取樣第B01～B17組銲件的銲道之橫截面，並記錄各銲道之深度與寬度，以及計算各銲道深寬比（發生銲接偏弧現象之第B11、B13～B16組銲件之銲道未記錄其深度與寬度）。此外，量測各銲件的銲道的肥粒鐵含量百分比，以計算各銲件的銲道之肥粒鐵含量百分比與沃斯田鐵含量百分比，其結果如下列第4表所示。When performing argon arc welding, record whether there is a welding arc phenomenon; and after performing argon arc welding, sample the cross-section of the weld bead of the B01~B17 group of weldments, and record the depth and width of each bead, And calculate the aspect ratio of each weld bead (the depth and width of the weld bead of the B11, B13~B16 group of weldments in which the arc phenomenon has occurred are not recorded). In addition, the percentage of ferrite iron content in the weld bead of each weldment was measured to calculate the percentage of ferrite iron content and austenitic iron content in the weld bead of each weldment. The results are shown in Table 4 below.
第4表、第B01～B17組之各銲件的銲道之深度與寬度、銲道深寬比、肥粒鐵含量百分比/沃斯田鐵含量百分比及銲接偏弧現象
第1～3圖分別顯示第B08、B12、B17組銲件之銲道的橫截面形態，其中，僅有第B08組銲件的銲道完全滲透。再如第3表及第1～3圖所示，相較於第B12、B17組銲件的銲道，第B01～10組銲件的銲道的深度較深且寬度較窄，其深寬比為至少0.80以上，甚至高達0.97，因此可以形成較小的熱影響區，降低熱變形及應力殘留的風險。Figures 1 to 3 respectively show the cross-sectional shape of the weld bead of the B08, B12, and B17 groups of weldments. Among them, only the weld bead of the B08 group of weldments is completely penetrated. As shown in Table 3 and Figures 1 to 3, compared with the weld beads of the B12 and B17 groups of weldments, the depth and width of the weld bead of the B01 to 10 groups of weldments is deeper and the width is narrower. The ratio is at least 0.80 or even as high as 0.97, so a smaller heat-affected zone can be formed, and the risk of thermal deformation and residual stress can be reduced.
此外，如第3表所示，相較於第B11～B17組銲件的銲道，第B01～B10組銲件的銲道中的肥粒鐵含量較低，且均低於50%，意即，各銲道之沃斯田鐵含量百分比高於肥粒鐵含量百分比，顯示各銲道具有優異的耐蝕性。再者，使用第A01～A10組之氬弧銲接助銲劑進行氬弧銲接時，並未發生銲接偏弧現象。In addition, as shown in Table 3, compared with the weld bead of the B11 to B17 group of weldments, the ferrite iron content in the weld bead of the B01 to B10 group of weldments is lower, and all of them are less than 50%, which means , The percentage of austenitic iron content in each weld bead is higher than the percentage of ferrite iron content, indicating that each weld bead has excellent corrosion resistance. In addition, when argon arc welding was performed with the argon arc welding fluxes of the A01 to A10 groups, the welding arc phenomenon did not occur.
綜上所述，當使用本發明之超級型雙相不銹鋼氬弧銲接助銲劑來進行超級型雙相不銹鋼工件的氬弧銲接時，藉由其含有20～30%的二氧化矽、20～25%的二氧化鈦、15～20%的二氧化釩、10～15%的三氧化鉬、10～15%的二硼化鋯、5～10%的氮化鋁、5～10%的碳酸錳及5～10%的碳酸鎳之組分配比，在該二超級型雙相不銹鋼工件之間所形成之銲道具有至少0.8以上之深寬比，縮小形成在該二超級型雙相不銹鋼工件之間的熱影響區（heat-affected zone，HAZ），進而降低熱變形及殘留應力的風險；並且，各銲道之沃斯田鐵含量百分比高於肥粒鐵含量百分比而可以提高銲道的耐蝕性，且於氬弧銲接過程中亦未發生銲接偏弧現象，為本發明之功效。In summary, when the super duplex stainless steel argon arc welding flux of the present invention is used for argon arc welding of super duplex stainless steel workpieces, it contains 20-30% silicon dioxide, 20-25 % Titanium dioxide, 15-20% vanadium dioxide, 10-15% molybdenum trioxide, 10-15% zirconium diboride, 5-10% aluminum nitride, 5-10% manganese carbonate and 5 The composition ratio of ～10% nickel carbonate, the weld bead formed between the two super duplex stainless steel workpieces has an aspect ratio of at least 0.8 or more, reducing the size of the weld formed between the two super duplex stainless steel workpieces Heat-affected zone (HAZ), thereby reducing the risk of thermal deformation and residual stress; and the percentage of austenitic iron content in each weld bead is higher than the percentage of ferrite iron content, which can improve the corrosion resistance of the weld bead. In addition, the arc welding phenomenon does not occur during the argon arc welding process, which is the effect of the present invention.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art without departing from the spirit and scope of the present invention may make various changes and modifications relative to the above-mentioned embodiments. The technical scope of the invention is protected. Therefore, the scope of protection of the invention shall be subject to the scope of the attached patent application.
無no
［第1圖］ 使用第A08組氬弧銲接助銲劑，在進行氬弧銲接之後所形成之第B08組銲件的銲道之橫截面形態圖。 ［第2圖］ 使用第A12組氬弧銲接助銲劑，在進行氬弧銲接之後所形成之第B12組銲件的銲道之橫截面形態圖。 ［第3圖］ 未使用任何氬弧銲接助銲劑，在進行氬弧銲接之後所形成之第B17組銲介的銲道之橫截面形態圖。[Picture 1] The cross-sectional shape diagram of the weld bead of the B08 group weldment formed after argon arc welding using the A08 group argon arc welding flux. [Second Picture] The cross-sectional shape diagram of the weld bead of the B12 group weldment formed after argon arc welding using the A12 group argon arc welding flux. [Picture 3] The cross-sectional morphology of the weld bead of the group B17 formed after argon arc welding without using any argon arc welding flux.
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/037,806 US20210178526A1 (en) | 2019-12-12 | 2020-09-30 | TIG Welding Flux for Super Duplex Stainless Steel |
| JP2020192693A JP7075141B2 (en) | 2019-12-12 | 2020-11-19 | TIG welding flux for super duplex stainless steel |
| US18/103,506 US20230166365A1 (en) | 2019-12-12 | 2023-01-31 | Method of Using TIG Welding Flux for Super Duplex Stainless Steel |
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| TW108145532 | 2019-12-12 | ||
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| AU778041B2 (en) * | 1999-08-25 | 2004-11-11 | Swagelok Company | Apparatus and method for welding duplex stainless steel |
| CN101138815B (en) * | 2006-09-07 | 2010-06-16 | 景航企业股份有限公司 | Active soldering flux for welding stainless steel |
| KR100774155B1 (en) * | 2006-10-20 | 2007-11-07 | 고려용접봉 주식회사 | Flux cored wire for welding stainless steel and its manufacturing method |
| 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 |
| TWI604912B (en) * | 2011-07-13 | 2017-11-11 | Illinois Tool Works | Cored welding wires, the method for making the same and its use |
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