JPS63247398A - Steel sheet for heat resistant coating - Google Patents
Steel sheet for heat resistant coatingInfo
- Publication number
- JPS63247398A JPS63247398A JP8004887A JP8004887A JPS63247398A JP S63247398 A JPS63247398 A JP S63247398A JP 8004887 A JP8004887 A JP 8004887A JP 8004887 A JP8004887 A JP 8004887A JP S63247398 A JPS63247398 A JP S63247398A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- steel sheet
- film
- resistant
- adhesion
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007747 plating Methods 0.000 claims abstract description 23
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 47
- 229910052759 nickel Inorganic materials 0.000 claims description 23
- 238000010422 painting Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000009713 electroplating Methods 0.000 abstract description 3
- 239000003973 paint Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 229910000680 Aluminized steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
本発明は、高温に曝してもその表面に塗装された耐熱性
塗膜の密着性を高く維持することができる耐熱塗装用鋼
板に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a heat-resistant coated steel plate that can maintain high adhesion of a heat-resistant coating film applied to the surface even when exposed to high temperatures. be.
フッ素樹脂等を主原料とする耐熱性塗料を塗装された耐
熱塗装金属板は、これらの樹脂の耐熱性や非粘着性が活
かされて調理器具やダクトなどに使用されている。近年
、需要が増大するに従いこのような耐熱塗装金属板とし
て、耐熱性に加えて耐食性、加工性等の性能と共に安価
なことが要求されるようになってきた。Heat-resistant coated metal plates coated with heat-resistant paints made primarily of fluororesins and the like are used for cooking utensils, ducts, etc., taking advantage of the heat resistance and non-stick properties of these resins. In recent years, as demand has increased, such heat-resistant coated metal plates are required to have not only heat resistance, but also corrosion resistance, workability, and other performance properties, and to be inexpensive.
従来、耐熱塗装金属板の原板としてはステンレス鋼板、
アルミめっき鋼板などが使用されてきた。Conventionally, stainless steel plates,
Aluminized steel sheets have been used.
しかしながら、ステンレス鋼板は価格的に高くて用途が
制限されており、またアルミめっき鋼板は合金層が存在
するために曲げ加工等によってクラックが入ってその上
に塗装されている耐熱性塗膜の密着性を不良にし、耐熱
塗装金属板の耐熱性のみならず耐食性も低下させるので
加工が制限されるという欠点があった。However, stainless steel sheets are expensive and their uses are limited, and aluminized steel sheets have an alloy layer that causes cracks due to bending, etc., and the heat-resistant coating coated on top of the cracks does not adhere properly. This has the disadvantage that processing is limited because it impairs the properties and reduces not only the heat resistance but also the corrosion resistance of the heat-resistant coated metal plate.
本発明は、上記従来技術の欠点がなく、その表面に塗装
されている耐熱性塗膜の塗膜密着性を初期だけでなく高
温で使用してゆく期間においても高く維持し、塗膜剥離
を生せしめることなく、優れた耐食性を持つようにさせ
る耐熱塗装金属板用の原板を安価に提供することを目的
とする。The present invention does not have the above-mentioned drawbacks of the prior art, maintains high adhesion of the heat-resistant coating coated on the surface not only at the initial stage but also during use at high temperatures, and prevents the coating from peeling off. To provide an original plate for a heat-resistant coated metal plate at a low cost, which has excellent corrosion resistance without corrosion.
本発明者等は、上記目的を達成するために先ず安価に提
供するために素材として鋼板を用い、これに種々な皮膜
を形成せしめたが、目的を達成させるだけの皮膜が容易
には得られない問題点があった。In order to achieve the above object, the inventors first used a steel plate as a material and formed various coatings on it in order to provide it at a low cost, but it was not easy to obtain a coating sufficient to achieve the objective. There were no problems.
本発明者等は上記問題点を解決して本発明の目的を達成
するため更に検討を進めた結果、鋼板面上に形成された
特定厚さのニッケルめっき層と更にその上に形成された
特定量の電解によるクロメート皮膜とから成る複合の皮
膜によって上記目的が達成できることを究明して本発明
を成した。As a result of further studies to solve the above-mentioned problems and achieve the purpose of the present invention, the present inventors discovered that a nickel plating layer of a specific thickness formed on a steel plate surface and a specific layer formed on it. The present invention was accomplished by discovering that the above object can be achieved by a composite film consisting of a chromate film formed by electrolyzing a large amount of chromate film.
すなわち本発明は、耐熱塗装の下地として鋼板の表面に
厚さ０．４声以上のニッケルめっき層と更にその上にＣ
ｒとして１０ｍｇ／ｒｎ’以上の電解によるクロメート
皮膜とが形成されていることを特徴とする耐熱塗装用鋼
板に関するものである。That is, the present invention provides a nickel plating layer with a thickness of 0.4 tones or more on the surface of a steel plate as a base for heat-resistant coating, and a carbon
The present invention relates to a steel sheet for heat-resistant painting, characterized in that a chromate film is formed by electrolysis with an r of 10 mg/rn' or more.
本発明に係る耐熱塗装用鋼板の第一の特徴はその表面に
厚さ０．４陣以上のニッケルめっき層が形成されている
ことである。このニッケルめっき層は、鋼板の熱酸化に
よる酸化皮膜の成長を抑制して高温に曝される条件下に
おいても耐熱性塗膜の密着性を保持することが出来ると
いう理由で耐熱塗装に適していることが判ったのである
。ニッケルめっき層の厚さが０．４声未満の場合は、ピ
ンホールがひどくなって被覆の均一性が低下し、次に説
明するクロメート皮膜をその上に形成させても上記ピン
ホールは不完全にしか埋められないため、耐熱性塗膜の
密着性が低いものとなる。このニッケルめっき層は既知
の例えば電気めっき法、無電気めっき法で形成されるが
、ピンホールの生成は実際的に避けられず、塗膜の耐食
性を低下させる。The first feature of the heat-resistant painted steel sheet according to the present invention is that a nickel plating layer with a thickness of 0.4 layers or more is formed on its surface. This nickel plating layer is suitable for heat-resistant coating because it suppresses the growth of oxide film caused by thermal oxidation of the steel plate and maintains the adhesion of the heat-resistant coating even under conditions where the steel plate is exposed to high temperatures. It turned out that. If the thickness of the nickel plating layer is less than 0.4 tones, the pinholes will become severe and the uniformity of the coating will deteriorate, and the pinholes will be incomplete even if the chromate film described below is formed thereon. Since the heat-resistant coating can only be buried in the pores, the adhesion of the heat-resistant coating film will be low. Although this nickel plating layer is formed by a known method such as electroplating or electroless plating, the formation of pinholes is practically unavoidable and reduces the corrosion resistance of the coating film.
このピンホールをニッケルめっき層の厚さを厚くするこ
とによって完全に埋めるためには３ｐ以上の厚さにしな
ければならない（この理由はニッケル電析ではＮｉは金
属結晶化するのでピンホール部に選択的に析出するより
は既に析出しているＮｉ上に析出し易いからと考えられ
る）。しかしながら。In order to completely fill this pinhole by increasing the thickness of the nickel plating layer, it must be made thicker than 3p (the reason for this is that in nickel electrodeposition, Ni crystallizes as a metal, so Ni is selected for the pinhole area). This is thought to be because it is easier to precipitate on the already precipitated Ni than to precipitate directly). however.
ニッケルめっき層がこのような厚さでは経済性の点で不
利益である。従ってニッケルめっき層の厚さは２岬以下
とするのが好ましく、ピンホールは次に説明するクロメ
ート皮膜で埋められる。Such a thickness of the nickel plating layer is disadvantageous in terms of economy. Therefore, the thickness of the nickel plating layer is preferably 2 caps or less, and the pinholes are filled with a chromate film as described below.
本発明に係る耐熱塗装鋼板の第二の特徴は、上記ニッケ
ルめっき層の上には更にＣｒとして１０■／ｍ′以上の
電解によるクロメート皮膜が形成されていることである
。このクロメート皮１摸が電解によって形成されるとき
、ニッケルめっき層に生成している前記ピンホールがＮ
ｉ部分に比べて電位的に卑であるので生成するクロメー
トは効率良くピンホールを埋めることになり、同時にニ
ッケルめっき層全体を被って形成されるクロメート皮膜
は耐熱性塗膜の密着性に効果的に作用するのである。A second feature of the heat-resistant coated steel sheet according to the present invention is that a chromate film of 10 cm/m' or more of Cr is further formed on the nickel plating layer by electrolysis. When a sample of this chromate skin is formed by electrolysis, the pinholes generated in the nickel plating layer are
Since the potential is more base than the i part, the generated chromate fills the pinholes efficiently, and at the same time, the chromate film that is formed covering the entire nickel plating layer is effective in improving the adhesion of the heat-resistant coating. It acts on
このクロメート皮膜の量が多すぎると、クロメート皮膜
の疑柴破懐に起因すると考えられる塗膜密着性の低下が
見られるのでＣｒとして１００■／ｒｒｌ’以下が好ま
しい。If the amount of this chromate film is too large, the adhesion of the coating will decrease, which is thought to be caused by the cracking of the chromate film, so Cr is preferably 100 .mu./rrl' or less.
以下、実施例及び比較例により本発明を具体的に説明す
る。Hereinafter, the present invention will be specifically explained with reference to Examples and Comparative Examples.
実施例１〜５．比較例１〜４
冷延鋼板に先ずニッケル電気めっきを施してそれぞれの
厚さのニッケルめっき層を形成せしめ、次いで電解クロ
メート処理を施してそれぞれの量のクロメート皮膜を形
成せしめて、ニッケルめっき層とその上のクロメート皮
膜とから成る複合の皮膜で被覆された各種耐熱塗装用鋼
板を得た（但し、比較例２では電解クロメート処理を施
さず、また比較例３ではニッケルめっき、電解クロメー
ト処理とも施さなかった）。Examples 1-5. Comparative Examples 1 to 4 A cold-rolled steel sheet was first subjected to nickel electroplating to form a nickel plating layer of various thicknesses, and then subjected to electrolytic chromate treatment to form a chromate film of various amounts to form a nickel plating layer. Various heat-resistant painted steel sheets were obtained that were coated with a composite film consisting of a chromate film on top of the chromate film (However, in Comparative Example 2, no electrolytic chromate treatment was applied, and in Comparative Example 3, neither nickel plating nor electrolytic chromate treatment was applied. There was no).
使用したニッケル電解浴はワット浴でその組成はＮｉＳ
Ｏ４・７１１□０ ： ２４０ｇ ／Ｑ、 Ｎ１ｃＱ、
−６Ｈ□Ｏ： ４５ｇ／Ｑ、ホウ酸：３０ｇ／Ｑであ
り浴温は３０℃であった。The nickel electrolytic bath used was a Watt bath, and its composition was NiS.
O4・711□0: 240g/Q, N1cQ,
-6H□O: 45 g/Q, boric acid: 30 g/Q, and the bath temperature was 30°C.
また、クロメート電解浴の組成はＣｒＯ２： ４０ ｇ
／ Ｑで浴温は４０℃であった。In addition, the composition of the chromate electrolytic bath is CrO2: 40 g
/Q and the bath temperature was 40°C.
各実施例、比較例のめつき条件（電流密度２時間）及び
ニッケルめっき層の厚さ、クロメート皮膜量を第１表に
示す。Table 1 shows the plating conditions (current density 2 hours), the thickness of the nickel plating layer, and the amount of chromate film for each example and comparative example.
以下余白
このようにして得られた各実施例、比較例の耐熱塗装用
鋼板に、耐熱性塗料としてポリアミドイミド−ポリテト
ラフルオロエチレン系塗料を塗装し、２６０℃で３０分
間の焼付けを行って耐熱塗装鋼板を得た。The following margins are coated with a polyamideimide-polytetrafluoroethylene paint as a heat-resistant paint on the heat-resistant painted steel plates of each Example and Comparative Example obtained in this way, and baked at 260°C for 30 minutes to make them heat-resistant. A painted steel plate was obtained.
上記耐熱塗装鋼板から試験片を採取し、折曲試験によっ
て塗膜密着性を調べた。耐熱塗装鋼板の塗膜密着性が高
いことは、初期においてのみならず、高温で使用してゆ
く期間においても要求されていることから、折曲試験に
は採取したままの初期の試験片の他、大気中で２５０℃
に３時間保持したもの、２７０℃に３時間保持したもの
を供した（第２表中でこれらの塗膜密着性をそれぞれ初
期密着性、耐熱密着性（１）、耐熱密着性（２）で示す
）。A test piece was taken from the above-mentioned heat-resistant coated steel plate, and the adhesion of the coating film was examined by a bending test. High coating adhesion of heat-resistant coated steel sheets is required not only at the initial stage but also during use at high temperatures. , 250℃ in air
(In Table 2, the adhesion of these coatings is expressed as initial adhesion, heat-resistant adhesion (1), and heat-resistant adhesion (2), respectively. show).
また、折曲試験はＪＩＳ Ｇ ３３１２ （着色亜鉛鉄
板で規定する曲げ試験〕に準じて行ない、Ｏｔ及び２し
各折曲部にセロハンテープを密着した後に剥離し、それ
と共に剥離する塗膜の剥離面積の全塗膜面積に対する割
合（少数第１位は四捨五入）によって下記の基準で塗膜
密着性を評価した。In addition, the bending test was conducted in accordance with JIS G 3312 (bending test specified for colored galvanized iron plates), and cellophane tape was attached to each bent part of Ot and 2 and then peeled off, and the coating film that was peeled off at the same time was peeled off. Paint film adhesion was evaluated using the following criteria based on the ratio of the area to the total paint film area (rounded to the first decimal place).
結果を第２表に示す。The results are shown in Table 2.
以下余白
第２表
・ｌ 試験片は２５０℃、３時間大気中に保持したもの
峠 試験片は２７０℃、３時間大気中に保持したもの第
２表から明らかなように本発明に係る耐熱塗装用鋼板を
使用して得た耐熱塗装鋼板の塗膜密着性は、初期のみな
らず、高温に保持された後でも折曲によって塗膜が剥離
することなく最高の密着性を示し、これに対し本発明の
範囲から外れた構成の耐熱塗装用鋼板を用いた場合は特
に塗膜の耐熱密着性において劣ることが判る。Below is the blank space in Table 2.l The test piece was kept in the atmosphere at 250°C for 3 hours.The test piece was kept in the air at 270°C for 3 hours.As is clear from Table 2, the heat-resistant coating according to the present invention The paint film adhesion of the heat-resistant coated steel sheet obtained using the steel sheet for commercial use showed the highest adhesion, with no peeling due to bending, not only at the initial stage but even after being kept at high temperatures. It can be seen that when a heat-resistant coating steel plate having a configuration outside the scope of the present invention is used, the heat-resistant adhesion of the coating film is particularly poor.
以上詳述した如く１本発明に係る耐熱塗装用鋼板は、鋼
板上に特定の厚さのニッケルめっき層と更にその上に電
解による特定量のクロメート皮膜とから成る複合の皮膜
を形成させたことにより、それを原板として得られる耐
熱塗装鋼板の塗膜の密着性は高温で使用してゆく期間に
おいても極めて高く維持することが出来、従って耐食性
、加工性にも優れており、しかも厚板として安価に供給
することが出来るため、用途拡大に貢献するところ大な
るものがある。As detailed above, the heat-resistant painted steel sheet according to the present invention has a composite film formed on the steel sheet, consisting of a nickel plating layer of a specific thickness and a chromate film of a specific amount by electrolysis on top of the nickel plating layer. As a result, the adhesion of the paint film of the heat-resistant coated steel sheet obtained as a base plate can be maintained at an extremely high level even during use at high temperatures.Therefore, it has excellent corrosion resistance and workability, and moreover, it can be used as a thick plate. Since it can be supplied at low cost, it greatly contributes to the expansion of applications.
Claims (1)
以上のニッケルめつき層と更にその上にＣｒとして１０
ｍｇ／ｍ＾２以上の電解によるクロメート皮膜とが形成
されていることを特徴とする耐熱塗装用鋼板。 ２ ニッケルめつき層の厚さが２μｍ以下である特許請
求の範囲第１項に記載の耐熱塗装用鋼板。 ３ クロメート皮膜の量がＣｒとして１００ｍｇ／ｍ＾
２以下である特許請求の範囲第１項または第２項に記載
の耐熱塗装用鋼板。[Claims] 1. A coating of 0.4 μm thick on the surface of a steel plate as a base for heat-resistant coating.
The above nickel plating layer and further 10 Cr as Cr.
A heat-resistant painting steel sheet, characterized in that a chromate film of mg/m^2 or more is formed by electrolysis. 2. The heat-resistant painted steel sheet according to claim 1, wherein the nickel plating layer has a thickness of 2 μm or less. 3 The amount of chromate film is 100mg/m^ as Cr
2 or less, the heat-resistant painted steel plate according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080048A JPH0826478B2 (en) | 1987-04-01 | 1987-04-01 | Steel plate for heat resistant coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62080048A JPH0826478B2 (en) | 1987-04-01 | 1987-04-01 | Steel plate for heat resistant coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63247398A true JPS63247398A (en) | 1988-10-14 |
| JPH0826478B2 JPH0826478B2 (en) | 1996-03-13 |
Family
ID=13707354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62080048A Expired - Lifetime JPH0826478B2 (en) | 1987-04-01 | 1987-04-01 | Steel plate for heat resistant coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826478B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10140397A (en) * | 1996-11-13 | 1998-05-26 | Nippon Steel Corp | Production of nickel plated steel sheet |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55138096A (en) * | 1979-04-11 | 1980-10-28 | Nippon Steel Corp | Surface treated steel plate, for resistance welding having layer containing ni |
| JPS56169788A (en) * | 1980-06-03 | 1981-12-26 | Nippon Steel Corp | Steel sheet useful as welded can |
| JPS572897A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS572895A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Chromate coated steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS572896A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Chromate coated steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS5735698A (en) * | 1980-08-14 | 1982-02-26 | Nippon Steel Corp | Production of chromate film steel plate for vessel of superior weldability and corrosion resistance after painting |
| JPS5735697A (en) * | 1980-08-14 | 1982-02-26 | Nippon Steel Corp | Production of chromate film steel plate for vessel of superior weldability and corrosion resistance after painting |
| JPS57192286A (en) * | 1981-05-21 | 1982-11-26 | Toyo Kohan Co Ltd | After-treatment of nickel plated steel sheet for welded can |
| JPS599198A (en) * | 1982-07-07 | 1984-01-18 | Nippon Steel Corp | Plated steel plate for welded can |
| JPS6167792A (en) * | 1984-09-07 | 1986-04-07 | Nippon Steel Corp | Manufacture of steel sheet containing chromium and having high corrosion resistance |
-
1987
- 1987-04-01 JP JP62080048A patent/JPH0826478B2/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55138096A (en) * | 1979-04-11 | 1980-10-28 | Nippon Steel Corp | Surface treated steel plate, for resistance welding having layer containing ni |
| JPS56169788A (en) * | 1980-06-03 | 1981-12-26 | Nippon Steel Corp | Steel sheet useful as welded can |
| JPS572897A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS572895A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Chromate coated steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS572896A (en) * | 1980-06-07 | 1982-01-08 | Nippon Steel Corp | Chromate coated steel plate for vessel of superior weldability and corrosion resistance after painting and its production |
| JPS5735698A (en) * | 1980-08-14 | 1982-02-26 | Nippon Steel Corp | Production of chromate film steel plate for vessel of superior weldability and corrosion resistance after painting |
| JPS5735697A (en) * | 1980-08-14 | 1982-02-26 | Nippon Steel Corp | Production of chromate film steel plate for vessel of superior weldability and corrosion resistance after painting |
| JPS57192286A (en) * | 1981-05-21 | 1982-11-26 | Toyo Kohan Co Ltd | After-treatment of nickel plated steel sheet for welded can |
| JPS599198A (en) * | 1982-07-07 | 1984-01-18 | Nippon Steel Corp | Plated steel plate for welded can |
| JPS6167792A (en) * | 1984-09-07 | 1986-04-07 | Nippon Steel Corp | Manufacture of steel sheet containing chromium and having high corrosion resistance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10140397A (en) * | 1996-11-13 | 1998-05-26 | Nippon Steel Corp | Production of nickel plated steel sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0826478B2 (en) | 1996-03-13 |
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