JPH04323356A - Molten flux composition for hot dip aluminum-zinc alloy plating - Google Patents
Molten flux composition for hot dip aluminum-zinc alloy platingInfo
- Publication number
- JPH04323356A JPH04323356A JP9430991A JP9430991A JPH04323356A JP H04323356 A JPH04323356 A JP H04323356A JP 9430991 A JP9430991 A JP 9430991A JP 9430991 A JP9430991 A JP 9430991A JP H04323356 A JPH04323356 A JP H04323356A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- plating
- zinc
- flux
- molten flux
- 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.)
- Granted
Links
- 238000007747 plating Methods 0.000 title claims abstract description 45
- 230000004907 flux Effects 0.000 title claims abstract description 26
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910001297 Zn alloy Inorganic materials 0.000 title claims abstract description 11
- 239000000203 mixture Substances 0.000 title claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 7
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims abstract description 4
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 4
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 4
- 239000011591 potassium Substances 0.000 claims abstract description 4
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 4
- 239000011734 sodium Substances 0.000 claims abstract description 4
- 229910001515 alkali metal fluoride Inorganic materials 0.000 claims description 3
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 11
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 6
- 150000001342 alkaline earth metals Chemical class 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 150000002222 fluorine compounds Chemical class 0.000 abstract description 3
- 238000005246 galvanizing Methods 0.000 abstract description 2
- -1 chlorides alkali metals Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 3
- 238000007716 flux method Methods 0.000 description 3
- 229910018137 Al-Zn Inorganic materials 0.000 description 2
- 229910018573 Al—Zn Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007774 longterm Effects 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
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QOVZZLFSTROUML-UHFFFAOYSA-M [Cl-].[Zn+].[Cl-].[NH4+] Chemical compound [Cl-].[Zn+].[Cl-].[NH4+] QOVZZLFSTROUML-UHFFFAOYSA-M 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、鉄鋼材料の溶融アルミ
ニウム−亜鉛合金めっき用、溶融フラックスに関するも
ので、更に詳しくは、同めっき浴上に浮遊させるフラッ
クスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molten flux for molten aluminum-zinc alloy plating of steel materials, and more particularly to a flux suspended on the same plating bath.
【０００２】0002
【従来の技術及び問題点】従来より鉄鋼材料は、構造物
として広く一般に使用されているが、錆び易いため、さ
まざまな防食法がとられている。特に鉄鋼材料の腐食は
、海岸において著しいため、亜鉛めっきを施して使用さ
れる例が、きわめて多くなってきている。BACKGROUND OF THE INVENTION Steel materials have been widely used in structures, but since they are susceptible to rust, various anti-corrosion methods have been applied. Corrosion of steel materials is particularly severe on the coast, so galvanized steel is increasingly being used.
【０００３】しかし、亜鉛めっきも、めっき厚みに限界
があり、長期使用には耐えることが出来ないため必ずメ
ンテナンスを必要とする。[0003] However, zinc plating also has a limit to the plating thickness and cannot withstand long-term use, so maintenance is always required.
【０００４】そこで、海岸付近で亜鉛めっきよりも数倍
の耐食性を有する溶融アルミニウム−亜鉛合金めっきの
使用が構造物を長期防食する上できわめて有効である。[0004] Therefore, the use of hot-dip aluminum-zinc alloy plating, which has several times higher corrosion resistance than zinc plating near the coast, is extremely effective for long-term corrosion protection of structures.
【０００５】ところで溶融アルミニウム−亜鉛合金めっ
きは、Ａｌが酸化され易いため、亜鉛めっきのように付
着性のよいめっき層を得ることは非常に困難であった。By the way, in hot-dip aluminum-zinc alloy plating, since Al is easily oxidized, it has been very difficult to obtain a plating layer with good adhesion like zinc plating.
【０００６】たとえば特開昭５４−１９４３１号のごと
く、通常の溶融亜鉛めっきと同じ、水溶性フラックス法
は、溶融アルミニウム−亜鉛めっきを施す前に、特定温
度での予熱を必要とし、工程が煩雑な上、設備費も効果
となる。[0006] For example, as in JP-A-54-19431, the water-soluble flux method, which is the same as normal hot-dip galvanizing, requires preheating at a specific temperature before applying hot-dip aluminum-zinc plating, making the process complicated. Moreover, equipment costs will also be reduced.
【０００７】また、特公昭３１−８３６６号のごとく、
塩化亜鉛−塩化アンモニウム系フラックスを、溶融金属
上に浮遊させる方法は、投入した鉄鋼材料を絞りロール
によりフラックスを除去するか又は、フラックス層の内
面から取り出す必要があり、煩雑であり、特に構造体の
めっきには適さない。[0007] Also, as in Special Publication No. 31-8366,
The method of floating zinc chloride-ammonium chloride flux on molten metal requires removing the flux from the introduced steel material with a squeezing roll or taking it out from the inner surface of the flux layer, which is complicated and particularly difficult for structures. Not suitable for plating.
【０００８】更に、特公昭５７−３５６７２号や、特公
昭６１−２０１７６７号は、鉄鋼材料に先ず溶融亜鉛め
っきを行い、次いで溶融亜鉛−アルミニウム合金を施す
二段めっき方法が開示されている。Further, Japanese Patent Publication No. 35672/1982 and Japanese Patent Publication No. 201767/1986 disclose a two-stage plating method in which a steel material is first hot-dip galvanized and then a hot-dip zinc-aluminum alloy is applied.
【０００９】しかし、二段めっき方法は、亜鉛，及び亜
鉛−アルミニウムの二つのめっき釜が必要であり、コス
トの面からも高価となる。However, the two-stage plating method requires two plating pots, one for zinc and one for zinc-aluminum, and is expensive in terms of cost.
【００１０】一方、薄板の溶融亜鉛−アルミニウム合金
めっきで採用されているゼンジマ−法（鉄鋼材料を高温
の密閉炉中で、水素や、アンモニアなどのガスで還元後
、溶融金属めっき浴中に浸漬してめっきを施すガス還元
法）は、連続鋼板や線材などにその適用が限定され厚板
構造物のように単体の鉄鋼材料のめっきは不可能である
。On the other hand, the Sendzimer method used for hot-dip zinc-aluminum alloy plating of thin sheets (steel material is reduced in a high-temperature closed furnace with gas such as hydrogen or ammonia, and then immersed in a hot-dip metal plating bath) The gas reduction method (which performs plating) is limited to continuous steel plates and wire rods, and cannot be used to plate single steel materials such as thick plate structures.
【００１１】[0011]
【発明が解決しようとする課題】以上述べたごとく、ア
ルミニウム−亜鉛めっきを厚板を用いた大型構造体に施
す場合には、従来技術の適用では、きわめて困難であっ
た。すなわち、大型構造体にめっきを施す場合には、ア
ルミニウム−亜鉛めっきよりも耐食性の劣る亜鉛めっき
が行われてきたわけである。そこで本発明は溶融フラッ
クス法により、一段めっきで、しかも雰囲気制御するこ
となく外観にすぐれたアルミニウム−亜鉛めっきを可能
とする溶融フラックス組成物の提供をその課題とする。[Problems to be Solved by the Invention] As described above, it is extremely difficult to apply aluminum-zinc plating to a large structure using a thick plate using the conventional techniques. That is, when plating large structures, zinc plating, which has lower corrosion resistance than aluminum-zinc plating, has been used. Therefore, the object of the present invention is to provide a molten flux composition that enables aluminum-zinc plating with an excellent appearance by one-step plating and without controlling the atmosphere using the molten flux method.
【００１２】0012
【課題を解決するための手段】そこで本発明者らは、か
かる課題を解決するため、種々検討を行った結果、従来
のフラックスでは酸化物溶融能力が低いために、４０〜
８０％アルミニウム−亜鉛のごとく、アルミニウム含有
量の高い領域では、特に厚板のような熱容量の大きい鋼
材に対するめっきは難しいことがわかり、高融点系の溶
融フラックスを組合わせると良いことを見出した。[Means for Solving the Problems] In order to solve the problems, the present inventors conducted various studies and found that conventional fluxes have a low ability to melt oxides.
It has been found that in areas with high aluminum content, such as 80% aluminum-zinc, it is difficult to plate steel materials with a large heat capacity, such as thick plates, and it has been found that it is effective to combine with a high melting point molten flux.
【００１３】すなわち本発明は、鉄鋼材に溶融フラック
スを用いて溶融４０〜８０％アルミニウム−亜鉛合金め
っきを施すためのフラックス組成物に関するものでその
要旨とするところは、アルミニウムを含むアルカリ金属
の弗化物とアルカリ土類金属の塩化物とからなることを
特徴とする。That is, the present invention relates to a flux composition for applying 40 to 80% aluminum-zinc alloy plating to steel materials using molten flux. It is characterized by consisting of a chloride of an alkaline earth metal and a chloride of an alkaline earth metal.
【００１４】本発明のアルミニウムを含むアルカリ金属
の弗化物とはたとえば氷晶石であり、アルカリ土類金属
の塩化物とは、Ｂａ，Ｃａ，Ｓｒ，Ｍｇ等の塩化物を意
味する。The fluoride of an alkali metal containing aluminum in the present invention is, for example, cryolite, and the chloride of an alkaline earth metal means a chloride of Ba, Ca, Sr, Mg, etc.
【００１５】また本発明の４０〜８０％アルミニウム−
亜鉛合金とは、更に微量のＳｉ，Ｍｇ，Ｐｂ，Ｃｕ，Ｔ
ｉ，Ｆｅ，Ｚｒ，Ｃｒ，Ｃ，Ｐ，Ｓ等を含んでいても良
い。[0015] Also, the 40 to 80% aluminum of the present invention
Zinc alloy also includes trace amounts of Si, Mg, Pb, Cu, and T.
It may contain i, Fe, Zr, Cr, C, P, S, etc.
【００１６】尚、本発明のアルミニウムを含むアルカリ
金属の弗化物とアルカリ土類金属の塩化物とからなるフ
ラックスに、リチウム，ナトリウム，カリウム等のアル
カリ金属の塩化物のうち、１種又は２種以上を添加する
と溶融４０〜８０％Ａｌ−Ｚｎめっきの外観がより一層
改善される。[0016] In addition, one or two of the chlorides of alkali metals such as lithium, sodium, and potassium are added to the flux of the present invention, which is composed of an alkali metal fluoride containing aluminum and an alkaline earth metal chloride. Addition of the above components further improves the appearance of hot-dip 40-80% Al-Zn plating.
【００１７】[0017]
【作用】本発明に従えば各種形状の鉄鋼材料に４０〜８
０％アルミニウム−亜鉛めっきを１段で行うことができ
るばかりでなく、クラック，ブツ，凸凹等のない良好な
外観を有するめっきが得られる。[Function] According to the present invention, 40 to 8
Not only can 0% aluminum-zinc plating be performed in one step, but also plating with a good appearance without cracks, bumps, unevenness, etc. can be obtained.
【００１８】本発明によるフラックス成分の理論的解明
は未だなされてないが、基本的には、アルミニウムを含
むアルカリ金属の弗化物が本来のフラックス作用として
働き、これに加えたアルカリ土類金属の塩化物は、その
働きを助成するために流動性を高める役割を果している
ものと考えられる。Although the theoretical elucidation of the flux components according to the present invention has not yet been made, basically, the fluorides of alkali metals including aluminum act as the original flux, and the chlorides of alkaline earth metals added to this act as fluorides of alkaline earth metals. Materials are thought to play a role in increasing fluidity in order to support their functions.
【００１９】アルカリ金属の弗化物にアルミニウムを含
むと限定したのは、アルミニウムを含むことによってめ
っき層外観が更に良好となることになる。The reason why the alkali metal fluoride is limited to include aluminum is that by including aluminum, the appearance of the plating layer becomes even better.
【００２０】また、リチウム，ナトリウム，カリウム等
のアルカリ金属のうち１種または２種以上を添加するこ
とによって融点を調整出来ることに加えて、更にめっき
外観が良好になることによるものである。なお、この他
、金属弗化物たとえば、弗化アルミニウム等をフラック
スの中に含んでいてもかまわない。Furthermore, by adding one or more of alkali metals such as lithium, sodium, potassium, etc., the melting point can be adjusted, and the appearance of the plating can be further improved. In addition, metal fluorides such as aluminum fluoride may be included in the flux.
【００２１】尚、本発明のめっき成分濃度範囲を４０〜
８０％Ａｌ−Ｚｎと限定にしたのは、Ａｌが４０％未満
では、めっき浴温度が低いため、フラックスにタナつり
現象を生じてしまうためであり、８０％を超えるアルミ
ニウムを含んだ場合には、逆に浴温が高くなり、フラッ
クス消耗が激しく、めっき不良となることになる。[0021] The plating component concentration range of the present invention is from 40 to
The reason for setting the limit to 80% Al-Zn is that if the Al content is less than 40%, the plating bath temperature will be low, causing a sagging phenomenon in the flux. On the contrary, the bath temperature becomes high, the flux is consumed rapidly, and the plating becomes defective.
【００２２】[0022]
【実施例】以下実施例に基づき、本発明を更に詳細に説
明する。EXAMPLES The present invention will be explained in more detail based on the following examples.
【００２３】厚さ９ｍｍの熱延鋼板試料を、脱脂，水洗
し、続いて、１０ｗｔ％の塩酸溶液中で酸洗後、水洗し
た。A hot rolled steel plate sample having a thickness of 9 mm was degreased and washed with water, then pickled in a 10 wt % hydrochloric acid solution, and then washed with water.
【００２４】次に第１表に示すフラックスを、６２０℃
に溶融した５５％アルミニウム−亜鉛溶融めっき浴上に
厚さ約３０ｍｍになるよう浮遊，溶融させた。Next, the flux shown in Table 1 was heated to 620°C.
The sample was floated and melted to a thickness of about 30 mm on a 55% aluminum-zinc hot-dip plating bath.
【００２５】次いで、前述の酸洗した試料をゆっくりと
溶融フラックスに接触させながら、めっき浴中へ１５分
間浸漬して引き上げた。Next, the above-mentioned pickled sample was slowly brought into contact with the molten flux, immersed in the plating bath for 15 minutes, and then pulled out.
【００２６】こうして得られた５５％アルミニウム−亜
鉛めっき試料の表面を観察し、外観の評価結果を第１表
に併せて記載した。The surface of the 55% aluminum-zinc plated sample thus obtained was observed, and the results of the evaluation of the appearance are also listed in Table 1.
【００２７】[0027]
【表１】[Table 1]
【００２８】[0028]
【表２】[Table 2]
【００２９】[0029]
【表３】[Table 3]
【００３０】[0030]
【発明の効果】以上の説明で、明らかのごとく、本発明
のフラックスを用いることによって、表面外観の良好な
溶融アルミニウム−亜鉛合金めっきを一段めっきによっ
て得ることが可能となった。[Effects of the Invention] As is clear from the above explanation, by using the flux of the present invention, it has become possible to obtain a hot-dip aluminum-zinc alloy plating with a good surface appearance by one-step plating.
【００３１】すなわち、従来よりきわめて困難視されて
いた厚板構造物のアルミニウム−亜鉛合金めっきを二段
めっきや高価な設備を必要とする還元法のごとく複雑な
工程を用いることなく、溶融フラックス法により、容易
に得られるため、工程の短縮やコストの低減等発明の効
果はきわめて大きい。In other words, the aluminum-zinc alloy plating of thick plate structures, which has traditionally been considered extremely difficult, can be achieved by the molten flux method without using complicated processes such as two-stage plating or reduction methods that require expensive equipment. Therefore, the effects of the invention, such as shortening the process and reducing costs, are extremely large.
Claims (2)
化物とアルカリ土類金属の塩化物とから成ることを特徴
とする溶融４０〜８０％アルミニウム−亜鉛合金めっき
用溶融フラックス組成物。1. A molten flux composition for 40 to 80% aluminum-zinc alloy plating, comprising an alkali metal fluoride containing aluminum and an alkaline earth metal chloride.
アルカリ金属の塩化物のうち、１種又は２種以上を更に
含有する請求項１記載の溶融アルミニウム−亜鉛合金め
っき用溶融フラックス組成物。2. The molten flux composition for molten aluminum-zinc alloy plating according to claim 1, further comprising one or more chlorides of alkali metals such as lithium, sodium, and potassium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3094309A JP2510361B2 (en) | 1991-04-24 | 1991-04-24 | Molten flux composition for molten aluminum-zinc alloy plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3094309A JP2510361B2 (en) | 1991-04-24 | 1991-04-24 | Molten flux composition for molten aluminum-zinc alloy plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04323356A true JPH04323356A (en) | 1992-11-12 |
| JP2510361B2 JP2510361B2 (en) | 1996-06-26 |
Family
ID=14106680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3094309A Expired - Lifetime JP2510361B2 (en) | 1991-04-24 | 1991-04-24 | Molten flux composition for molten aluminum-zinc alloy plating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510361B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853806A (en) * | 1995-01-10 | 1998-12-29 | Nihon Parkerizing Co., Ltd. | Process for hot dip-coating steel material with molten aluminum alloy by one-stage coating method using flux and bath of molten aluminum alloy metal |
| US6143364A (en) * | 1996-11-11 | 2000-11-07 | Sumitomo Metal Industries, Ltd. | Hot dip plating method and apparatus |
| CN1069703C (en) * | 1999-02-11 | 2001-08-15 | 陶会成 | Hot-dip aluminum plating process for steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740275A (en) * | 1971-08-06 | 1973-06-19 | Thiem Corp | Galvanizing preflux wash composition |
-
1991
- 1991-04-24 JP JP3094309A patent/JP2510361B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740275A (en) * | 1971-08-06 | 1973-06-19 | Thiem Corp | Galvanizing preflux wash composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853806A (en) * | 1995-01-10 | 1998-12-29 | Nihon Parkerizing Co., Ltd. | Process for hot dip-coating steel material with molten aluminum alloy by one-stage coating method using flux and bath of molten aluminum alloy metal |
| US6143364A (en) * | 1996-11-11 | 2000-11-07 | Sumitomo Metal Industries, Ltd. | Hot dip plating method and apparatus |
| CN1069703C (en) * | 1999-02-11 | 2001-08-15 | 陶会成 | Hot-dip aluminum plating process for steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2510361B2 (en) | 1996-06-26 |
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