JP5727346B2 - 溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部補修方法および溶接構造体 - Google Patents
溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部補修方法および溶接構造体 Download PDFInfo
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- JP5727346B2 JP5727346B2 JP2011228448A JP2011228448A JP5727346B2 JP 5727346 B2 JP5727346 B2 JP 5727346B2 JP 2011228448 A JP2011228448 A JP 2011228448A JP 2011228448 A JP2011228448 A JP 2011228448A JP 5727346 B2 JP5727346 B2 JP 5727346B2
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- aluminum alloy
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- 229910000831 Steel Inorganic materials 0.000 title claims description 45
- 239000010959 steel Substances 0.000 title claims description 45
- 229910045601 alloy Inorganic materials 0.000 title claims description 33
- 239000000956 alloy Substances 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 28
- 229910000611 Zinc aluminium Inorganic materials 0.000 title claims description 19
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 229910007570 Zn-Al Inorganic materials 0.000 claims description 10
- 238000011282 treatment Methods 0.000 claims description 10
- 229910018125 Al-Si Inorganic materials 0.000 claims description 7
- 229910018520 Al—Si Inorganic materials 0.000 claims description 7
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 67
- 238000003466 welding Methods 0.000 description 30
- 230000007797 corrosion Effects 0.000 description 20
- 238000005260 corrosion Methods 0.000 description 20
- 230000008439 repair process Effects 0.000 description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 14
- 238000005507 spraying Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 239000011701 zinc Substances 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 238000007747 plating Methods 0.000 description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000008397 galvanized steel Substances 0.000 description 5
- 238000007751 thermal spraying Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 2
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 2
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- -1 etc. Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000010289 gas flame spraying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
- C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating By Spraying Or Casting (AREA)
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
また、特許文献2の溶接部に純Alを溶射し、次いでZn−Al系合金を溶射する方法では、下層となるAl溶射層の密着力が低くなりがちである。また、上記Zn−Al系合金の溶射層のみでは、熱影響を受けて耐食性が低下した溶接部周辺のめっき部を含めて、腐食電流が流れやすく、充分な耐食性を得られない。特許文献3の技術もまた同様の問題を抱えている。
本発明が対象としている溶接部は、溶融亜鉛−アルミニウム系合金めっき鋼材を溶接接合したものであることが必要である。
ここで、上記溶融亜鉛−アルミニウム系合金めっき鋼材とは、溶融亜鉛めっき鋼板、溶融亜鉛−5%アルミニウム合金めっき鋼板および溶融55%アルミニウム−亜鉛合金めっき鋼板等の鋼材のことをいう。上記亜鉛系めっき層中には、微量のMgやSi,Ni,Pb,Sb,Ti,希土類等が含まれていてもよい。
なお、上記めっきの付着量については、特に制限はない。また、上記めっき層は、その上に、保管中における防錆を目的として、クロム酸処理等の各種化成処理を施したり、塗油したものであってもよい。
この防性処理層は、腐食電流を流れ難くする絶縁性のものであればよく、特に限定されるものではない。例えば、望ましい防錆処理層としては、SiやZr,Ti,Mo,V,Crなどの酸化物もしくは水和酸化物を複合してなる無機系被膜、あるいは、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、ポリエステル樹脂などの樹脂組成物に、亜鉛粉末、アルミニウム粉末などの防錆剤を複数含む有機系被膜を挙げることができる。また、種類の異なる無機系被膜と有機系被膜を複数層積層してもよい。
次いで、上記1層目および2層目の溶射層を形成し、徐冷して十分に溶射補修部を冷却した後、上溶射層とその周辺部(溶射層の範囲+30mmの範囲)の上に、同じく表1に示したように、シラン化合物、チタン化合物およびバナジウム化合物からなる無機系、または、有機系の防錆処理液をスプレー塗装し、120℃の大気雰囲気の乾燥炉で、3〜180秒間乾燥処理して防錆処理層を被覆形成した。
(1)溶射層の密着性
溶接補修部の上に、セロハンテープを密着させた後、強制剥離し、セロハンテープに付着した溶射層の剥離面積率を求め、以下の基準で密着性を評価した。
◎:溶射層の剥離面積率 0%
○:溶射層の剥離面積率 0%超え10%未満
△:溶射層の剥離面積率 10%以上25%未満
×:溶射層の剥離面積率 25%以上
上記溶接補修した溶接部から、長さ150mmの溶接部を含む耐食試験片を切断して採取し、切断面を塩ビ系塗料でシールした後、溶接部を含む面を評価面とし、JIS G0594に記載されたC法に準じて、5000時間の複合サイクル腐食試験を行い、溶接補修部に発生した赤錆の発生率を測定し、下記の基準で耐食性を評価した。
◎:赤錆の発生面積率 0%
○:赤錆の発生面積率 0%超え10%未満
△:赤錆の発生面積率 10%以上50%未満
×:赤錆の発生面積率 50%以上
Claims (6)
- 溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部の上層にAl−Si系合金を溶射して1層目の溶射層を形成し、その1層目の溶射層の上にZn−Al系合金を溶射して2層目の溶射層を形成することを特徴とする溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部補修方法。
- 上記溶射層とその周辺部分の上に無機系および/または有機系の防錆処理層を被覆することを特徴とする請求項1に記載の溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部補修方法。
- 上記Al−Si系合金は、Si含有量が0.1〜20mass%のものであることを特徴とする請求項1または2に記載の溶接部補修方法。
- 溶融亜鉛−アルミニウム系合金めっき鋼材の溶接部の上層に、Al−Si系合金からなる1層目の溶射層が形成され、上記1層目の溶射層の上に、Zn−Al系合金からなる2層目の溶射層が形成されてなる溶融亜鉛−アルミニウム系合金めっき鋼材の溶接構造体。
- 上記溶射層とその周辺部分の上に無機系および/または有機系の防錆処理層が被覆されてなることを特徴とする請求項4に記載の溶融亜鉛−アルミニウム系合金めっき鋼材の溶接構造体。
- 上記Al−Si系合金は、Si含有量が0.1〜20mass%のものであることを特徴とする請求項4または5に記載の溶接構造体。
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JP6398196B2 (ja) * | 2013-03-29 | 2018-10-03 | 新日鐵住金株式会社 | 溶接軽量h形鋼の製造方法 |
CN103993255B (zh) * | 2014-05-12 | 2017-01-18 | 同济大学 | 一种在基材上喷涂锌铝合金形成防腐层的方法 |
CN103981479B (zh) * | 2014-05-12 | 2016-08-24 | 同济大学 | 热喷涂工艺在风力发电机的发电构件上的防腐应用 |
CN108026625B (zh) | 2015-09-29 | 2020-07-10 | 日本制铁株式会社 | 含有Mg的Zn合金被覆钢材 |
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JPS6230867A (ja) * | 1985-08-02 | 1987-02-09 | Nisshin Steel Co Ltd | 高耐食性表面処理鋼管 |
JPH01157794A (ja) * | 1987-09-09 | 1989-06-21 | Nippon Denso Co Ltd | ろう付用アルミニウム素材,その製法及びアルミニウム合金製熱交換器の製法 |
JPH073422A (ja) * | 1993-05-25 | 1995-01-06 | Nisshin Steel Co Ltd | Alめっき電縫管の溶接ビード切削部の補修方法 |
JP3356843B2 (ja) * | 1993-10-29 | 2002-12-16 | 昭和電工株式会社 | ろう付用アルミニウム材料の製造方法 |
JP3393924B2 (ja) * | 1994-06-07 | 2003-04-07 | 昭和電工株式会社 | ろう付用防食アルミニウム材料の製造方法 |
JP2828600B2 (ja) * | 1994-09-09 | 1998-11-25 | 日新製鋼株式会社 | 電縫鋼管の表面補修方法及び装置 |
JP2002030406A (ja) * | 2000-07-14 | 2002-01-31 | Nisshin Steel Co Ltd | プレス成形性及びアルカリ洗浄性に優れた燃料タンク用アルミ系めっき鋼板 |
JP5111697B2 (ja) * | 2001-06-06 | 2013-01-09 | 株式会社東芝 | 真空成膜装置用部品とそれを用いた真空成膜装置 |
JP4093782B2 (ja) * | 2002-03-28 | 2008-06-04 | 株式会社栗本鐵工所 | 鉄系基材の防食皮膜および防食方法 |
JP5269435B2 (ja) * | 2007-02-22 | 2013-08-21 | 新日鐵住金株式会社 | 溶融金属めっき用浴中ロール |
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