JPH0723540B2 - Method for producing plated steel sheet with excellent fingerprint resistance and solderability - Google Patents
Method for producing plated steel sheet with excellent fingerprint resistance and solderabilityInfo
- Publication number
- JPH0723540B2 JPH0723540B2 JP16591487A JP16591487A JPH0723540B2 JP H0723540 B2 JPH0723540 B2 JP H0723540B2 JP 16591487 A JP16591487 A JP 16591487A JP 16591487 A JP16591487 A JP 16591487A JP H0723540 B2 JPH0723540 B2 JP H0723540B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- plated steel
- inorganic oxide
- aqueous solution
- solderability
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 30
- 239000010959 steel Substances 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 23
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 4
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 3
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000004532 chromating Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018137 Al-Zn Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910018573 Al—Zn Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000003666 anti-fingerprint Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、電気部品などの用途に使用する場合、取り扱
い中指紋が付着しにくく、アースをとる時など容易に半
田付けすることができるめっき鋼板の製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a plating that, when used for applications such as electrical parts, is less likely to have fingerprints attached during handling and can be easily soldered when grounding. The present invention relates to a method for manufacturing a steel plate.
（従来技術） 従来より家電製品や器物の部材には、亜鉛系、アルミニ
ウム系または亜鉛−アルミニウム合金系めっき鋼板が使
用されている。これらのめっき鋼板を部材に加工する場
合、種々の工程を経るので、取り扱い中指紋が多数付着
する。(Prior Art) Conventionally, zinc-based, aluminum-based, or zinc-aluminum alloy-based plated steel sheets have been used for members of home appliances and articles. When these plated steel sheets are processed into members, various steps are performed, and thus many fingerprints are attached during handling.
めっき鋼板の場合、指紋が一たん付着すると、布で拭う
程度では容易に除去できないので、洗剤や溶剤で洗浄す
るしか方法がない。しかし、このような作業は、工程を
繁雑にするため、従来は、指紋除去を行わず、付着した
まま使用していた。このため、指紋を起点にして腐食が
起こったり、外観を損なったりしていた。In the case of a plated steel sheet, once fingerprints are attached, it cannot be easily removed by wiping with a cloth, so there is no choice but to wash with a detergent or solvent. However, since such a work complicates the process, conventionally, fingerprints are not removed and they are used as they are. For this reason, the fingerprint is used as a starting point to cause corrosion or impair the appearance.
この指紋付着を防止する方法として、従来より行なわれ
ている方法は、表面全体に有機樹脂エマルジョンまたは
水溶性有機樹脂を薄く（２〜５μ）塗布する方法であ
る。As a method for preventing the fingerprints from adhering, a conventionally used method is to apply an organic resin emulsion or a water-soluble organic resin thinly (2 to 5 μm) on the entire surface.
（発明が解決しようとする問題点） しかし、この方法は、表面全体に樹脂皮膜を形成するた
め、電気抵抗溶接やアース用の半田付けの際、皮膜が障
害になるものであった。このため、溶接の際には、通電
性が劣って非常に溶接しにくく、かつ溶接チップに樹脂
が溶着して、溶接チップの寿命が短いものであった。ま
た、半田付けするには、皮膜を除去するか、タップを立
てるかの方法によらなければならなかった。さらに、樹
脂皮膜の実用耐熱温度は、高くて200℃前後で、耐熱性
に乏しいため、熱器具の部材製造の際、高周波による
「やきばめ」などを行う部材には使用できないものであ
った。(Problems to be Solved by the Invention) However, in this method, since the resin film is formed on the entire surface, the film becomes an obstacle during electric resistance welding or soldering for grounding. Therefore, during welding, the electrical conductivity was poor and it was extremely difficult to weld, and the resin was welded to the welding tip, and the life of the welding tip was short. Further, in order to solder, it was necessary to remove the film or to make a tap. Furthermore, the practical heat resistance temperature of the resin film is as high as around 200 ° C, and the heat resistance is poor, so it could not be used for members that perform "yakisame" with high frequency during the manufacturing of parts for heat appliances. .
このため、電気抵抗溶接や半田付けが容易で、耐熱性を
有する耐指紋性めっき鋼板の製造可能な方法が求められ
ていた。For this reason, there has been a demand for a method capable of producing a fingerprint-resistant plated steel sheet which is easy to perform electric resistance welding and soldering and has heat resistance.
（問題点を解決するための手段） 本発明の耐指紋性めっき鋼板は、鋼板に亜鉛系、アルミ
ニウム系または亜鉛−アルミニウム合金系金属をめっき
しためっき鋼板にクロメート処理を施した後、粒径が0.
5〜500μの無機酸化物含有水溶液またはこの水溶液にク
ロム酸、クロム酸塩または重クロム酸塩を添加したもの
の液滴を該液滴が分散するように塗布して、無機酸化物
皮膜の被覆部分／未被覆部分との面積比を0.1〜20にす
る方法で製造することにより電気抵抗溶接や半田付けが
容易で、耐熱性を有するようにした。(Means for Solving the Problems) The fingerprint-resistant plated steel sheet of the present invention has a grain size after chromate treatment of a plated steel sheet obtained by plating a steel sheet with a zinc-based, aluminum-based or zinc-aluminum alloy-based metal. 0.
5 to 500μ of an aqueous solution containing an inorganic oxide or a droplet of chromic acid, a chromate salt or a dichromate added to this aqueous solution is applied so as to disperse the droplets, and the coated portion of the inorganic oxide film is covered. / Electric resistance welding and soldering were made easy and heat resistance was obtained by manufacturing by a method in which the area ratio to the uncoated portion was set to 0.1 to 20.
本発明により製造されるめっき鋼板を模式的に示すと、
第１図、第２図のように、めっき鋼板１の上にクロメー
ト皮膜２を形成し、このクロメート皮膜２の上に無機酸
化物皮膜３を分散させたものである。When the plated steel sheet produced by the present invention is schematically shown,
As shown in FIGS. 1 and 2, the chromate film 2 is formed on the plated steel plate 1, and the inorganic oxide film 3 is dispersed on the chromate film 2.
本発明でめっき鋼板表面にクロメート皮膜を形成するの
は、無機酸化物皮膜未被覆部分の耐食性を向上させるた
めである。このクロメート皮膜は、公知クロメート処理
により形成したもの、例えば、電解クロメート処理、反
応型クロメート処理、塗布型クロメート処理などで形成
したものでよく、皮膜のクロム付着量は、20〜200mg/m2
にするのが好ましい。20mg/m2未満では、耐食性が期待
できず、200mg/m2を越えると、耐食性は、向上するもの
の、溶接の際、チップの汚れ、チリの発生が著しい。The reason why the chromate film is formed on the surface of the plated steel sheet in the present invention is to improve the corrosion resistance of the uncoated portion of the inorganic oxide film. This chromate film may be formed by a known chromate treatment, for example, electrolytic chromate treatment, reactive chromate treatment, coating chromate treatment, or the like, and the chromium adhesion amount of the coating is 20 to 200 mg / m 2.
Is preferred. If it is less than 20 mg / m 2 , corrosion resistance cannot be expected, and if it exceeds 200 mg / m 2 , the corrosion resistance is improved, but when welding, chipping of chips and dust are remarkable.
反応型クロメート処理により形成するときは、クロム酸
濃度が10〜100g/lで、Cr3+／全Crの比が0.25〜0.5の処
理液により形成するのが好ましい。10g/lより少ない
と、クロム付着量を20mg/m2以上にするのが困難で、100
g/lより多くすると、クロム付着量が200mg/m2以上にな
りやすい。また、Cr3+／全Crの比が0.25未満であると、
皮膜中の６価クロムが溶出し、0.5を越えると、処理液
の貯蔵安定性が劣り、処理液がゲル化して皮膜を均一に
形成できない。When it is formed by the reactive chromate treatment, it is preferably formed by a treatment liquid having a chromic acid concentration of 10 to 100 g / l and a Cr 3+ / total Cr ratio of 0.25 to 0.5. If it is less than 10 g / l, it is difficult to increase the chromium deposition amount to 20 mg / m 2 or more, and 100
When it is more than g / l, the amount of chromium deposited tends to be 200 mg / m 2 or more. If the Cr 3+ / total Cr ratio is less than 0.25,
If the hexavalent chromium in the coating film elutes and exceeds 0.5, the storage stability of the treatment liquid is poor and the treatment liquid gels, making it impossible to form a uniform coating.
また、クロメート皮膜は上記処理液にリン酸を１〜5g/l
添加したもので処理して形成することも可能である。こ
れは、リン酸を添加すると、処理液のエッチング力が強
化されるため、クロメート皮膜の耐食性が向上し、ま
た、クロメート皮膜特有の黄味が少なくなるためであ
る。In addition, the chromate film contains 1 to 5 g / l of phosphoric acid in the above treatment solution.
It is also possible to form by treating with the added one. This is because the addition of phosphoric acid enhances the etching power of the treatment liquid, which improves the corrosion resistance of the chromate film and reduces the yellowing characteristic of the chromate film.
無機酸化物皮膜は、例えば、Al、Si、Zr、Tiの酸化物ま
たはLi2SiO3などで、耐食性を必要とする場合には、こ
れらにクロムを含有させる。皮膜中にクロムを含有させ
る場合は、0.01〜0.5g/m2含有させるのが好ましい。The inorganic oxide film is, for example, an oxide of Al, Si, Zr, Ti, Li 2 SiO 3 , or the like, and when corrosion resistance is required, chromium is added to these. When chromium is contained in the film, it is preferable to contain 0.01 to 0.5 g / m 2 .
これらの皮膜は、液滴状のものが分散し、未被覆部分が
存在するように形成する。これにより、未被覆部分に
は、クロメート皮膜部分が露出するので、溶接性、半田
付け性は良好になる。無機酸化物皮膜の被覆部分／未被
覆部分の面積比を0.1〜20にする。これは、0.1未満であ
ると、溶接性、半田付け性は優れているが、耐指紋性が
十分でなく、20を越えると、耐指紋性には優れている
が、溶接性、半田付け性が良好でなくなるからである。These coatings are formed so that droplets are dispersed and uncoated portions are present. As a result, the chromate film portion is exposed in the uncoated portion, so that the weldability and solderability are improved. The area ratio of the coated / uncoated portion of the inorganic oxide film is set to 0.1 to 20. If it is less than 0.1, the weldability and solderability are excellent, but the fingerprint resistance is not sufficient, and if it exceeds 20, the fingerprint resistance is excellent, but the weldability and solderability are good. Is not good.
皮膜付着量は、0.1g/m2未満であると、クロメート皮膜
に対する耐食性依存度が大きくなりすぎ、2g/m2を越え
ると、未被覆部分が上記範囲にならないので、0.1〜2g/
m2にするのが好ましい。If the coating amount is less than 0.1 g / m 2 , the corrosion resistance dependency on the chromate coating becomes too large, and if it exceeds 2 g / m 2 , the uncoated portion does not fall within the above range, so 0.1-2 g / m 2
It is preferably m 2 .
無機酸化物皮膜の形成は、無機酸化物含有水溶液、例え
ば、アルミナ、シリカ、ジルコニア、チタニアなどゾ
ル、またはリチウムシリケートのよな水可溶性酸化物の
１種または２種以上の水溶液を霧化して、鋼板に液滴が
分散するように吹き付けて、乾燥すればよい。吹き付け
の際は、液滴を0.5〜500μの粒径にする。これは、0.5
μ未満であると、皮膜が均一に分散形成されても、凹凸
が小さいため、耐指紋性効果が少なく、500μを越える
と、乾燥後の皮膜厚が100μ以上になってしまい、皮膜
がもろくなり、引っかきなどにより容易に剥離する可能
性が高く、また、外観も劣ってしまうからである。な
お、液滴粒径を0.5〜500μにするには、スプレーガンで
あると、粒系が大きくなり、分散した状態で塗布できな
いので、静電霧化装置によるものが好ましい。The formation of the inorganic oxide film is carried out by atomizing an inorganic oxide-containing aqueous solution, for example, a sol such as alumina, silica, zirconia, titania, or an aqueous solution of one or more water-soluble oxides such as lithium silicate, The droplets may be sprayed on the steel sheet so that the droplets are dispersed and dried. When spraying, the droplets have a particle size of 0.5 to 500 μ. This is 0.5
If it is less than μ, even if the film is uniformly dispersed, the unevenness is small, so the fingerprint resistance effect is small, and if it exceeds 500 μ, the film thickness after drying becomes 100 μ or more and the film becomes brittle. This is because there is a high possibility that they will be easily peeled off due to scratching and the appearance will be poor. Incidentally, in order to make the droplet diameter 0.5 to 500 .mu., A spray gun has a large grain system and cannot be applied in a dispersed state. Therefore, it is preferable to use an electrostatic atomizer.
無機酸化物皮膜にクロムを含有させる場合には、上記水
溶液に無水クロム酸、クロム酸塩もしくは重クロム酸塩
を添加するか、クロメート皮膜形成に使用した処理液を
添加すればよい。When chromium is contained in the inorganic oxide film, chromic anhydride, chromate or dichromate may be added to the aqueous solution, or the treatment liquid used for forming the chromate film may be added.
なお、本発明でクロメート皮膜や無機酸化物皮膜を形成
する素材めっき鋼板は、従来より使用されているめっき
鋼板でよい。例えば、亜鉛系めっき鋼板としては、溶融
めっき法、電気めっき法、真空蒸着めっき法などにより
めっきした純亜鉛めっきものや亜鉛合金めっきもの（Zn
−Ni、Zn−Mn、Zn−Fe）、また、アルミニウム系めっき
鋼板としては、溶融めっき法でめっきした純Alめっきの
ものやAl−Si合金めっきのもの、さらに、亜鉛−アルミ
ニウム合金系めっき鋼板としては、（４〜５％）Al−Z
n、55％Al−Znなどの溶融合金めっきのものなどであ
る。The material-plated steel sheet for forming the chromate film or the inorganic oxide film in the present invention may be a conventionally used plated steel sheet. For example, as zinc-based plated steel sheets, pure zinc plated ones plated by hot dip plating, electroplating, vacuum deposition plating, etc. and zinc alloy plated ones (Zn
-Ni, Zn-Mn, Zn-Fe), and as the aluminum-plated steel sheet, a pure Al-plated sheet or an Al-Si alloy-plated sheet plated by a hot dip method, and a zinc-aluminum alloy-based plated steel sheet. As (4-5%) Al-Z
n, 55% Al-Zn and other molten alloy plating.
（作用） 本発明により製造されるめっき鋼板は、クロメート皮膜
の上に液滴状の無機酸化物皮膜が分散した状態で形成さ
れているので、無機酸化物皮膜が存在しない部分も耐食
性に優れている。また無機酸化物皮膜は、有機樹脂に比
べて指紋が付着しにくい物質であるうえに、微細な凹凸
を形成するので、指紋が付着しにくく、指紋が付着した
としても、凹凸により乱反射されるため、非常に目立ち
にくい。さらに、クロメート皮膜が露出した部分がある
ため、溶接性、半田付け性に優れ、無機酸化物皮膜は、
耐熱性を有しているので、溶接チップに付着せず、製造
の際、熱処理による加工を施すことができる。(Function) Since the plated steel sheet produced by the present invention is formed in a state in which the droplet-shaped inorganic oxide film is dispersed on the chromate film, the portion where the inorganic oxide film does not exist is also excellent in corrosion resistance. There is. In addition, since the inorganic oxide film is a substance that is less likely to have fingerprints attached to it than organic resins and forms fine irregularities, it is difficult for fingerprints to attach and even if fingerprints are attached, irregularities are reflected by the irregularities. , Very inconspicuous. Furthermore, since the chromate film has an exposed part, it has excellent weldability and solderability.
Since it has heat resistance, it does not adhere to the welding tip and can be processed by heat treatment during manufacturing.
（実施例） 第１表に示す種々のめっき鋼板にアルミナ、シリカ、チ
タニア、ジルコニアの各ゾル水溶液またはリチウムシリ
ケート水溶液を静電霧化装置で霧化して、液滴が分散す
るように吹き付け、乾燥した。次にこのめっき鋼板より
試験片を採取して、従来のアクリル樹脂（エマルジョン
を塗布、皮膜厚３〜５μ）を塗布したものとともに耐指
紋性、溶接性および半田付け性を調査した。第１表にこ
の結果を示す。(Example) Various sol aqueous solutions of alumina, silica, titania, and zirconia or lithium silicate aqueous solution were atomized with an electrostatic atomizer on various plated steel sheets shown in Table 1, and sprayed so that droplets were dispersed, and then dried. did. Next, a test piece was taken from this plated steel sheet, and the anti-fingerprint property, the weldability and the solderability were investigated together with the one coated with a conventional acrylic resin (emulsion applied, film thickness 3 to 5 μm). The results are shown in Table 1.
なお、上記特性の調査、評価は、次のようにして行っ
た。The investigation and evaluation of the above characteristics were carried out as follows.
（１）耐指紋性 JIS K 2246に準拠して人工指紋溶液を人工指に付着させ
て、1Kg/cm2の圧力で一定時間加圧し、指紋の付着状態
を次の基準で評価した。(1) Fingerprint resistance In accordance with JIS K 2246, an artificial fingerprint solution was adhered to an artificial finger and pressed at a pressure of 1 Kg / cm 2 for a certain period of time, and the adhered state of the fingerprint was evaluated according to the following criteria.
◎ 付着なし ○ わずかに付着 △ 全面積の約50％付着 × 前面付着 （２）溶接性 電極4.5φ‐CF、加圧力250Kg、通電時間12サイクルの条
件で溶接して、溶接部の引張試験を行い、次の基準で引
張強度を評価した。◎ No adhesion ○ Slightly adhesion △ Approximately 50% of total area adhered × Front adhesion (2) Weldability Welding under the conditions of electrode 4.5φ-CF, applied pressure 250Kg, and energization time 12 cycles, and tensile test of welded part The tensile strength was evaluated according to the following criteria.
◎ 351Kgf以上 ○ 251〜350Kgf △ 251Kgf以下 × 溶接できず （３）半田付け性 導線を半田付けし、電気抵抗を測定した。◎ 351 Kgf or more ○ 251 to 350 Kgf △ 251 Kgf or less × Welding was not possible (3) Solderability The conductor wire was soldered and the electric resistance was measured.
○ 10Ω未満 △ 10Ω以上100Ω未満 × 100Ω以上 （発明の効果） 以上のごとく、本発明によれば、耐指紋性を有し、かつ
電気抵抗溶接や半田付けが容易なめっき鋼板を製造する
ことができる。また、鋼板表面に形成する皮膜は、無機
酸化物であるので、耐熱性を有する。○ Less than 10Ω △ More than 10Ω less than 100Ω × more than 100Ω (Effects of the Invention) As described above, according to the present invention, it is possible to manufacture a plated steel sheet that has fingerprint resistance and is easy to perform electric resistance welding and soldering. In addition, the film formed on the surface of the steel sheet is heat resistant because it is an inorganic oxide.
第１図は、本発明により製造されるめっき鋼板の模式断
面図、第２図は、模式平面図である。 １……めっき鋼板、２……クロメート皮膜、３……無機
酸化物皮膜FIG. 1 is a schematic sectional view of a plated steel sheet manufactured according to the present invention, and FIG. 2 is a schematic plan view. 1 ... Plated steel plate, 2 ... Chromate film, 3 ... Inorganic oxide film
Claims (3)
−アルミニウム合金系金属をめっきしためっき鋼板にク
ロメート処理を施した後、粒径が0.5〜500μの無機酸化
物含有水溶液またはこの水溶液にクロム酸、クロム酸塩
または重クロム酸塩を添加したものの液滴を該液滴が分
散するように塗布して、無機酸化物皮膜の被覆部分／未
被覆部分との面積比を0.1〜20にすることを特徴とする
耐指紋性、半田付け性に優れためっき鋼板の製造方法。1. An aqueous solution containing an inorganic oxide having a particle size of 0.5 to 500 .mu. Or a chromic acid solution obtained by chromating a plated steel sheet obtained by plating a steel sheet with a zinc-based, aluminum-based or zinc-aluminum alloy-based metal. , To which a chromate or a dichromate is added so that the droplets are dispersed so that the area ratio of the coated / uncoated portion of the inorganic oxide film is 0.1 to 20. And a method for producing a plated steel sheet having excellent fingerprint resistance and solderability.
カ、ジルコニア、チタニアの１種または２種以上のゾル
水溶液であることを特徴とする特許請求の範囲第１項に
記載の耐指紋性、半田付け性に優れためっき鋼板の製造
方法。2. The fingerprint resistance and solder according to claim 1, wherein the inorganic oxide-containing aqueous solution is a sol aqueous solution of one kind or two or more kinds of alumina, silica, zirconia, and titania. A method for producing a plated steel sheet having excellent attachability.
ト水溶液であることを特徴とする特許請求の範囲第１項
に記載の耐指紋性、半田付け性に優れためっき鋼板の製
造方法。3. The method for producing a plated steel sheet having excellent fingerprint resistance and solderability according to claim 1, wherein the inorganic oxide-containing aqueous solution is a lithium silicate aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16591487A JPH0723540B2 (en) | 1987-07-02 | 1987-07-02 | Method for producing plated steel sheet with excellent fingerprint resistance and solderability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16591487A JPH0723540B2 (en) | 1987-07-02 | 1987-07-02 | Method for producing plated steel sheet with excellent fingerprint resistance and solderability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6411981A JPS6411981A (en) | 1989-01-17 |
| JPH0723540B2 true JPH0723540B2 (en) | 1995-03-15 |
Family
ID=15821411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16591487A Expired - Lifetime JPH0723540B2 (en) | 1987-07-02 | 1987-07-02 | Method for producing plated steel sheet with excellent fingerprint resistance and solderability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723540B2 (en) |
-
1987
- 1987-07-02 JP JP16591487A patent/JPH0723540B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6411981A (en) | 1989-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3671331A (en) | Coated metal and method | |
| JPS6033192B2 (en) | Composite coated steel sheet with excellent corrosion resistance, paint adhesion, and paint corrosion resistance | |
| JP4416645B2 (en) | Heat-resistant metal plate with excellent corrosion resistance, organic coated metal plate, and phosphate-treated zinc-based plated metal plate | |
| CA1253113A (en) | Applying hexavalent-chromium composition including particulate metal on metal coating substrate | |
| JP2003518558A (en) | Resin-coated steel sheet for automobile fuel tank and method of manufacturing the same | |
| JPS6196077A (en) | Copper product and its production | |
| US3708350A (en) | Coated metal and method | |
| JPH0610358B2 (en) | Multi-layer electric plated steel sheet | |
| JPH11335864A (en) | Manufacturing method of surface treated steel sheet with excellent corrosion resistance | |
| JPH11335863A (en) | Manufacturing method of surface treated steel sheet with excellent corrosion resistance | |
| JPH0723540B2 (en) | Method for producing plated steel sheet with excellent fingerprint resistance and solderability | |
| JPH0374144B2 (en) | ||
| JPH04314872A (en) | Organic composite coated steel sheet with excellent corrosion resistance and spot weldability | |
| JP3810677B2 (en) | Coating plate, surface preparation method of coating plate and method of manufacturing coated steel plate with excellent corrosion resistance | |
| JPH03287786A (en) | Zinc plated steel sheet having superior press formability, chemical convertibility and weldability | |
| JPH09241857A (en) | Chromium-free composition for surface treatment for metal | |
| JPH09208859A (en) | Composition for treating metal surface and surface-treated metal sheet | |
| JP3829947B2 (en) | Metal surface treatment composition | |
| JP2952835B2 (en) | Manufacturing method of galvanized steel sheet with excellent weldability, pressability and chemical conversion treatment | |
| JPH05320931A (en) | Surface-treated steel material excellent in corrosion resistance and coating property and its production | |
| JPH09241856A (en) | Chromium-free composition for surface treatment for metal | |
| JPH11335862A (en) | Manufacturing method of surface treated steel sheet with excellent corrosion resistance | |
| JPH04131386A (en) | Zinc plated steel sheet and production thereof | |
| WO2025192606A1 (en) | Surface-treated steel sheet and arc-welded joint | |
| JP2697485B2 (en) | Manufacturing method of high corrosion resistant galvannealed steel sheet |