JPS61127854A - Method for covering iron member with zn-al eutectoid alloy - Google Patents
Method for covering iron member with zn-al eutectoid alloyInfo
- Publication number
- JPS61127854A JPS61127854A JP59249577A JP24957784A JPS61127854A JP S61127854 A JPS61127854 A JP S61127854A JP 59249577 A JP59249577 A JP 59249577A JP 24957784 A JP24957784 A JP 24957784A JP S61127854 A JPS61127854 A JP S61127854A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- eutectoid alloy
- eutectoid
- plating
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 239000000956 alloy Substances 0.000 title claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 9
- 238000007747 plating Methods 0.000 claims abstract description 36
- 229910007570 Zn-Al Inorganic materials 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 238000010587 phase diagram Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 238000013016 damping Methods 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 abstract description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 3
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract description 3
- 235000019270 ammonium chloride Nutrition 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 abstract description 2
- 239000011592 zinc chloride Substances 0.000 abstract description 2
- 235000005074 zinc chloride Nutrition 0.000 abstract description 2
- 239000012071 phase Substances 0.000 abstract 3
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 239000011701 zinc Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 229910000714 At alloy Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006023 eutectic alloy Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241001312219 Amorphophallus konjac Species 0.000 description 1
- 235000001206 Amorphophallus rivieri Nutrition 0.000 description 1
- 229920002752 Konjac Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 235000010485 konjac Nutrition 0.000 description 1
- 239000000252 konjac Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002345 surface coating layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/30—Fluxes or coverings on molten baths
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、高い減衰能をもち、かつ１耐食性、密着性、
加工性を兼ね備えた複合材を開発するため、Ｚｎ−Ａｌ
共析合金最適な条件で鉄系部材に被覆し、被覆直後に水
冷し、粒径を制御する被覆法に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention has high attenuation ability, and also has excellent corrosion resistance, adhesion,
In order to develop a composite material with good workability, Zn-Al
This invention relates to a coating method in which eutectoid alloys are coated on iron-based members under optimal conditions, and the particle size is controlled by cooling with water immediately after coating.
Ｚｎ−Ａｔ合金の溶融メッキ法については、一般に広く
研究されている。たとえば、特開昭５４−１９４３１号
公報によると、Ａｔ７０〜９０重量％と残部は亜鉛から
なる合金の溶融メッキ浴を用いて、鉄鋼表面に被覆して
、その密着性、耐食性について述べている。この発明に
よると、アルミニウムの重量％が７０〜９０％であシ、
また、溶融メッキ法に関して詳細には述べられていない
。Hot-dip plating methods for Zn--At alloys have generally been widely studied. For example, Japanese Patent Application Laid-Open No. 54-19431 describes the adhesion and corrosion resistance of steel surfaces coated using a hot-dip plating bath of an alloy consisting of 70 to 90% by weight of At and the balance being zinc. According to this invention, the weight percentage of aluminum is 70 to 90%,
Further, the hot-dip plating method is not described in detail.
また、アルミニウムと亜鉛の他に微少の不純物、たとえ
ば、マグネシウム、鉛、ケイ素などを含有させることに
より優れた耐食性と落前性を向上させることも公知とな
っている。また、特開昭５８−２０４１６７号公報によ
ると、鋼線の溶融Ｚｎメッキにおいて、メッキ浴通過後
５秒以内に鋼線に水冷を施こすことにより、機械的に優
れたＺｎメッキ鋼線を製造することについては公知とな
っている。It is also known that excellent corrosion resistance and crumbling properties can be improved by containing minute impurities such as magnesium, lead, silicon, etc. in addition to aluminum and zinc. Furthermore, according to Japanese Patent Application Laid-open No. 58-204167, mechanically superior Zn-plated steel wire can be manufactured by water-cooling the steel wire within 5 seconds after passing through a plating bath in hot-dip Zn plating of steel wire. It is publicly known to do so.
本発明の目的は、高減滅能をもち、かつ、良好な耐食性
、加工性、密着性をもつ複合材の被覆法を提供すること
にある。An object of the present invention is to provide a method for coating a composite material that has high attenuation ability and good corrosion resistance, workability, and adhesion.
Ｚｎ−Ａｌ共析合金防憑機構（振動エネルギの消費メカ
ニズム）は、複合型に属し、第二相と基地との境界面で
塑性流動がひき起こされてエネルギが消費される。また
、結晶粒を微細化すれば超塑性特性を示し、共析温度が
５４８″にと高く、比較的高温度域まで緒特性を保持で
きる。さらに、Ｚｎ−４を共析合金のα相＋融液への変
態温度は６８８ｘであり、高温度域までの使用に耐える
ことができる。しかし、実用化するとなると、単一材料
では機械的強度に難点があるだめ難しい。そこで本発明
では、Ｚｎ−Ａｌ共析合金緒特性を生かし、かつ、機械
的強度を高めるため、溶融メッキ法によって鉄系部材に
被覆しだ複合材を作成する。The Zn-Al eutectoid alloy armoring mechanism (vibration energy consumption mechanism) belongs to a complex type, in which plastic flow is caused at the interface between the second phase and the base, and energy is consumed. In addition, if the crystal grains are made finer, it exhibits superplastic properties, and the eutectoid temperature is as high as 548'', and the properties can be maintained even at relatively high temperatures. The transformation temperature to a melt is 688x, and it can withstand use up to high temperatures.However, it is difficult to put it into practical use because a single material has a drawback in mechanical strength.Therefore, in the present invention, Zn - In order to take advantage of the structural properties of Al eutectoid alloy and to increase mechanical strength, a composite material is created that coats iron-based members by hot-dip plating.
以下、本発明の実施例について説明する。 Examples of the present invention will be described below.
板幅４０間Ｘ板長１５０聞×板厚０．８ｗの寸法の５ｓ
ｓｏの圧延鋼板を、ブラスト処理した後、２０％水酸化
ナトリウムで脱脂を行・ない、１０％塩酸で脱酸を行な
った後、重量比で８７％の塩化亜鉛、１３％の塩化アン
モニウムの混合溶液で７ラツクス処理を行ない、４５０
〜５５０’Ｋに予熱した試験片鋼板に、Ｚｎ−Ａｌ共析
合金被覆した。メッキ操作はカンタル線を発熱体とし、
ＭｇＯを素材とした気密質な二重るつぼ内で行なった。5s with dimensions of board width 40mm x board length 150mm x board thickness 0.8w
After blasting a SO rolled steel plate, it was degreased with 20% sodium hydroxide, deoxidized with 10% hydrochloric acid, and then mixed with 87% zinc chloride and 13% ammonium chloride by weight. 7 lux treatment with solution, 450
A test piece steel plate preheated to ~550'K was coated with a Zn-Al eutectoid alloy. The plating operation uses Kanthal wire as the heating element,
The test was carried out in an airtight double crucible made of MgO.
フラックスの状態は、溶融メッキ、あるいは、メッキ層
の表面の光沢に強い影響をおよぼす。フラックスを厚く
塗布した場合は、メッキ層が均一に付着せず光沢もない
表面状態となる。しかも、鉄系母材とメッキ１碕の密着
性も不完全である。７ラツクスを薄く均一に塗布した場
合には、メッキ表面に光沢があり良好なメッキ状態が得
られた。The condition of the flux has a strong influence on the surface gloss of the hot-dip plating or the plating layer. If the flux is applied thickly, the plating layer will not adhere uniformly and the surface will lack luster. Furthermore, the adhesion between the iron base material and the plating layer is also incomplete. When 7lux was applied thinly and uniformly, the plating surface was glossy and a good plating condition was obtained.
鉄系母材の予熱県度は、４５０〜５５０’Ｋが望ましい
。Ｚｎ−Ａｌ共析合金溶融メッキは７５０〜８６０″に
の範囲で可能であシ、第１図に溶融メッキ温度とメッキ
厚さの関係を示す。メッキ温度が低くなると、メッキ厚
さが薄く、高いメッキ温度になると急激に厚くなる。第
２図にメッキ厚さと減衰能の関係を示す。試験片の片面
のメッキ厚さが約４０〜４５μｍで減衰能が最大となシ
、それ以上になると、減衰能は小さくなる。メッキ厚さ
とメッキ温度とは比例的な関係にあり、メッキ表面状態
と減衰能の観点から、Ｚｎ−Ａｌ共析合金最適なメッキ
条件は、メッキ温度が７８０±１０′にである。The preheating temperature of the iron base material is preferably 450 to 550'K. Zn-Al eutectoid alloy hot-dip plating is possible in the range of 750 to 860'', and Figure 1 shows the relationship between hot-dip plating temperature and plating thickness.The lower the plating temperature, the thinner the plating thickness. As the plating temperature increases, the thickness increases rapidly. Figure 2 shows the relationship between plating thickness and damping capacity. The attenuation capacity is at its maximum when the plating thickness on one side of the test piece is about 40 to 45 μm, and when it becomes thicker, it becomes thicker. , the attenuation capacity becomes smaller. There is a proportional relationship between the plating thickness and the plating temperature, and from the viewpoint of the plating surface condition and the attenuation capacity, the optimal plating conditions for the Zn-Al eutectoid alloy are when the plating temperature is 780±10' It is.
メッキ後処理して、溶体化処理、あるいは、時効処理と
いった方法があるが、いずれの方法も粒径制御を目的と
している。本発明でもＺｎ−ＡＡ共共合合金溶融メツギ
後、６４８″Ｋに加熱し３時間保持後、水冷し、結晶粒
を微細化し、４７３’にで時効処理して結晶を成長させ
たが、溶体化処理後、時効処理後共にメッキ表面状態が
劣化する。There are methods such as post-plating treatment, solution treatment, or aging treatment, but each method is aimed at controlling particle size. In the present invention, after melting the Zn-AA conjugate alloy, it was heated to 648''K, held for 3 hours, cooled with water to refine the crystal grains, and aged at 473'' to grow crystals. The plating surface condition deteriorates both after the chemical treatment and after the aging treatment.
そのため、本発明は、Ｚｎ−ｋｔ共共合合金溶融メッキ
後、Ｚｎ−Ａｌ共析合金巳度が、Ｚｎ−Ａｔ合金の平衡
状態図のα相＋Ｌｉｑｕｉｄ状態とα相との境界線まで
空冷後、水冷すれば、メッキ層表面は比較的光沢のある
ものとなる。第３図に、３．０Ｘ１０”の歪振幅におけ
る試験片温度と減衰能の関係を示す。減衰能の観点から
、上記条件で水冷すれば、高温就において、高い減衰能
が得られる。試験片温度３５０’Ｋにおいて比較すると
、水冷された試験片の減衰能は母材の二倍にも達する。Therefore, in the present invention, after hot-dipping the Zn-kt eutectic alloy, the strength of the Zn-Al eutectic alloy reaches the boundary line between the α phase + Liquid state and the α phase in the equilibrium phase diagram of the Zn-At alloy after air cooling. When water-cooled, the surface of the plating layer becomes relatively glossy. Figure 3 shows the relationship between test piece temperature and damping capacity at a strain amplitude of 3.0 x 10''. From the perspective of damping capacity, high damping capacity can be obtained at high temperatures by water cooling under the above conditions. Test piece When compared at a temperature of 350'K, the damping capacity of the water-cooled specimen is twice that of the base material.
従って、この方法でＺｎ−Ａｊ共析合金の粒径を制御す
れば有利である。Therefore, it is advantageous to control the grain size of the Zn-Aj eutectoid alloy in this manner.
耐食性に関しては、分極特性、塩水噴霧試験。Regarding corrosion resistance, polarization characteristics, salt spray test.
暴露試験を行なった。分極特性は、３％Ｎ ａＣ１水溶
液で、Ｚｎ−ｋｔ共共合合金鋼板純アルミニウム、魂亜
蛤について、アノード分極特性を調べた。その結果、Ｚ
ｎ −Ａ Ｌ共析合霊の分極特性は純亜鉛の分極特性に
類似している。塩水噴霧試験の実験方法は、ＪＩＳ
Ｚ２３７１塩水噴霧試験法に従った。最初は酸化物の生
成と思われる重量増加が認められたが、不動態が形成さ
れて以後は急激な変化はなく、酸化、あるいは、腐食は
ほとんど進んでいない。一般に、１μｍのメッキ厚さで
一年の寿命として単純に換算すれば、本発明のメッキ鋼
板は４０〜４５年の寿命があると考えられる。An exposure test was conducted. The anode polarization characteristics were investigated using a 3% NaCl aqueous solution for a Zn-kt co-conjugated alloy steel plate, pure aluminum, and konjac. As a result, Z
The polarization properties of the n-A L eutectoid are similar to those of pure zinc. The experimental method for the salt spray test is JIS
The Z2371 salt spray test method was followed. Initially, an increase in weight was observed, which was thought to be due to the formation of oxides, but after the formation of a passive state, there was no sudden change, and oxidation or corrosion had hardly progressed. In general, the plated steel sheet of the present invention is considered to have a lifespan of 40 to 45 years if simply converted to the lifespan of one year with a plating thickness of 1 μm.
暴露試験では、はとんど変化はみられない。以上、耐食
性に関しては良好であると考えられる。In exposure tests, almost no changes were observed. As described above, it is considered that the corrosion resistance is good.
密着性、加工性に関しては、エリクセン試験、曲げ試験
、引張試験を行なった。エリクセン試験はＡ木矢を行な
い試験愼については、ＪＩＳＢ７７２９に従い、エリク
セン値で母材と７．ｎ−Ａｌ共析合金メッキ鋼板を比較
すると、それぞれ、Ａ６．７ｍ、Ａ６．５ｍａでほぼ同
等の値となった。Regarding adhesion and workability, an Erichsen test, a bending test, and a tensile test were conducted. The Erichsen test was carried out using A-kiya, and the Erichsen value was 7. When comparing the n-Al eutectoid alloy plated steel sheets, the values were almost the same at A6.7m and A6.5ma, respectively.
密層曲げ試験では、１８０°曲げ試験によるメッキ表面
の変形状態と断面形状について調べた。曲げのりｉｆｉ
側ではメッキ層が伸びに追随できずにき裂が生じ、圧、
縮側でははく離が生じた。引張試験では、クロスヘッド
速度４．１７Ｘ １０−’ｍ／（８）で引張り、メッキ
層にはき裂が生じているが、はく離は見られず、破断部
付近までメッキが付着していた。その情況を第４図と第
５図に示す。In the dense layer bending test, the deformation state and cross-sectional shape of the plated surface were investigated by a 180° bending test. Bendenori ifi
On the side, the plating layer cannot follow the elongation and cracks occur, causing pressure and
Peeling occurred on the shrinkage side. In the tensile test, the plated layer was pulled at a crosshead speed of 4.17 x 10-' m/(8), and cracks were observed in the plated layer, but no peeling was observed, and the plated layer was adhered to the vicinity of the fractured part. The situation is shown in Figures 4 and 5.
本実施例によれば、減衰能に関しては、振動に際し第二
相と基地との境界面で塑性流動又は粘性流動がひき起こ
されて、エネルギが消費される複合型防撮機構をもつＺ
ｎ−ｋｔ共共合合金溶融メッキし、被覆後、Ｚｎ−ｋｔ
共共合合金温度がα相＋Ｌｉｑｕｉｄ状態とα相との境
界まで空冷後、水冷を施こすことにより、大きな歪振幅
、比較的高温度での条件下で、最大限に減衰能を高める
ことができる。耐食性に関しては、塩水噴霧試験よシ重
量損失速度が遅＜、Ｚｎ−Ａｌ共析合金、酸素還元反応
が抑制されて、アノード反応でちる７、ｎ溶出速度は小
さくなり、同時に、腐食生成物（Ｚｎ酸化物）はＡｔに
保持されて表面被覆層を形成し、拡散抵抗が大きくなる
のでアノード反応を抑制し、Ｚｎ （ＯＨ）ｚを安定さ
せて腐食を抑制させる。密着性、加工性に関しては、本
発明による最適メッキ条件で被覆した部材の密着性、加
工性は極めて優れている。According to this embodiment, with regard to the damping ability, the Z is equipped with a composite anti-photography mechanism in which plastic flow or viscous flow is caused at the interface between the second phase and the base during vibration, and energy is consumed.
Zn-kt after hot-dip plating and coating
By applying water cooling after air cooling until the conjugate alloy temperature reaches the boundary between the α phase + liquid state and the α phase, it is possible to maximize the damping capacity under conditions of large strain amplitude and relatively high temperature. can. Regarding corrosion resistance, the weight loss rate is slow in the salt spray test, the oxygen reduction reaction is suppressed in the Zn-Al eutectoid alloy, the anodic reaction reduces the elution rate, and at the same time, the corrosion products ( Zn oxide) is retained by At to form a surface coating layer, which increases diffusion resistance, suppresses anodic reactions, stabilizes Zn(OH)z, and suppresses corrosion. Regarding adhesion and workability, the members coated under the optimum plating conditions according to the present invention have extremely excellent adhesion and workability.
本発明によれば、減衰能を高め、良好な耐食性、加工性
、密着性をもつ複合材の被覆法を提供することができる
。According to the present invention, it is possible to provide a method for coating a composite material with increased damping ability and good corrosion resistance, workability, and adhesion.
第１図は、対数減衰能と試験片温度の関係図、第２図は
、対数減衰能と試験片の片面メッキ厚さの関係図、第３
図は、対数減衰能と試験片温度の関係図、第４図、第５
図は、引張試験後の断面図である。
寥 １ 圀
訊ｊ！ｌン斤私度 （回
ｚ ｚの
庁ｉ ｔ４メツ’ｌ＜４２ （、ＰｒｒＬ）第３ 阻
試瑣芳慝崖 （すFigure 1 is a relationship diagram between logarithmic damping capacity and test piece temperature, Figure 2 is a relationship diagram between logarithmic attenuation capacity and single side plating thickness of the test piece, and Figure 3
The diagrams show the relationship between logarithmic damping capacity and test piece temperature, Figures 4 and 5.
The figure is a cross-sectional view after a tensile test.寥 1 Kuni Kanj! ln斤I degree (time z z's office i t4metsu'l<42 (,PrrL) 3rd test d.
Claims (1)
、 前記鉄系部材の表面に均一な厚さにフラックスを塗布し
た後、予熱された前記部材を完全に融液状態とした前記
Ｚｎ−Ａｌ共析合金からなる溶融メッキ中に浸漬して被
覆を行ない、被覆後、前記Ｚｎ−Ａｌ共析合金の温度が
、Ｚｎ−Ａｌの平衡状態図のα相＋Ｌｉｑｕｉｄ状態と
α相との境界まで空冷後、水冷を行なつて、前記Ｚｎ−
Ａｌ共析合金の粒径を制御することを特徴とするＺｎ−
Ａｌ共析合金の鉄系部材への被覆法。[Claims] 1. In the method of coating a Zn-Al eutectoid alloy on an iron-based member, after applying flux to a uniform thickness on the surface of the iron-based member, the preheated member is completely heated. The Zn-Al eutectoid alloy is coated by immersion in hot-dip plating made of the Zn-Al eutectoid alloy in a melt state, and after coating, the temperature of the Zn-Al eutectoid alloy becomes α phase + Liquid in the Zn-Al equilibrium phase diagram. After air cooling to the boundary between the state and the α phase, the Zn-
Zn- characterized by controlling the grain size of Al eutectoid alloy
A method for coating iron-based members with Al eutectoid alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59249577A JPS61127854A (en) | 1984-11-28 | 1984-11-28 | Method for covering iron member with zn-al eutectoid alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59249577A JPS61127854A (en) | 1984-11-28 | 1984-11-28 | Method for covering iron member with zn-al eutectoid alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61127854A true JPS61127854A (en) | 1986-06-16 |
Family
ID=17195073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59249577A Pending JPS61127854A (en) | 1984-11-28 | 1984-11-28 | Method for covering iron member with zn-al eutectoid alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63447A (en) * | 1986-06-18 | 1988-01-05 | Seiko Instr & Electronics Ltd | Hot-dipped steel material with high damping capacity and its manufacture |
| EP2035594A1 (en) * | 2006-06-09 | 2009-03-18 | University of Cincinnati | High-aluminum alloy for general galvanizing |
-
1984
- 1984-11-28 JP JP59249577A patent/JPS61127854A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63447A (en) * | 1986-06-18 | 1988-01-05 | Seiko Instr & Electronics Ltd | Hot-dipped steel material with high damping capacity and its manufacture |
| EP2035594A1 (en) * | 2006-06-09 | 2009-03-18 | University of Cincinnati | High-aluminum alloy for general galvanizing |
| EP2035594A4 (en) * | 2006-06-09 | 2010-12-08 | Teck Cominco Metals Ltd | High-aluminum alloy for general galvanizing |
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