JPS6123767A - High-corrosion resistant surface treated steel sheet - Google Patents
High-corrosion resistant surface treated steel sheetInfo
- Publication number
- JPS6123767A JPS6123767A JP14384084A JP14384084A JPS6123767A JP S6123767 A JPS6123767 A JP S6123767A JP 14384084 A JP14384084 A JP 14384084A JP 14384084 A JP14384084 A JP 14384084A JP S6123767 A JPS6123767 A JP S6123767A
- Authority
- JP
- Japan
- Prior art keywords
- resin film
- resin
- film
- weight
- steel sheet
- 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
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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/26—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
- C23C22/28—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
（１）産業上の利用分野
本発明は鋼板表面に樹脂皮膜が形成された塗装性に優れ
た表面処理鋼板に８いて、樹脂皮膜の耐食注會向上させ
た高耐食性表面処理鋼板に関する。Detailed Description of the Invention (1) Field of Industrial Application The present invention relates to a surface-treated steel sheet with a resin film formed on the surface of the steel sheet, which has excellent paintability. Regarding surface-treated steel sheets.
（２）従来技術
冷延鋼板子めつき鋼板を水分散性もしぐは水溶性の樹脂
で処理してその表面に塗装性、耐食性を付与する樹脂皮
膜全形成した表面処理鋼板のうち。(2) Conventional technology A cold-rolled steel sheet is a surface-treated steel sheet in which a galvanized steel sheet is treated with a water-dispersible or water-soluble resin to completely form a resin film that imparts paintability and corrosion resistance to the surface.
従来比較的塗装性、耐食性に優れたものとして、鋼板表
面にクロメートＢＬｌｌＮｋ形成し、さらにこのクロメ
ート皮膜の上に樹脂単独もしくは無機物を含む樹脂の皮
膜を形成したものがある。この鋼板は第１層のクロメー
ト皮膜により耐食性に付与し、第２層の樹脂皮膜で塗装
性會付与したもので、樹脂皮膜の樹脂としては水溶液の
処理液により形成する都合上分子内に７Ｘ酸基葡有する
親水性のものが用いられてい◆。Conventionally, there is a steel plate having relatively excellent paintability and corrosion resistance, in which chromate BLllNk is formed on the surface of a steel plate, and a resin film alone or a resin film containing an inorganic substance is formed on the chromate film. This steel sheet has a first layer of chromate film that provides corrosion resistance, and a second layer of resin film that provides paintability.The resin for the resin film contains 7X acid in the molecule because it is formed using an aqueous treatment solution. A hydrophilic material with a base material is used◆.
（３）発明が解決しようとする問題点
しかしながら上記のような表面処理鋼板の場合、耐食性
を向上させようとしても、その向上は第１層のクロメー
ト皮膜だけによらなければならないため、従来その向上
には限界があった。このため耐食性金さらに向上させる
には第２層の樹脂皮膜全向上させる必要があった。(3) Problems to be solved by the invention However, in the case of the above-mentioned surface-treated steel sheets, even if an attempt is made to improve the corrosion resistance, the improvement must depend only on the first layer of chromate film. had its limits. Therefore, in order to further improve the corrosion resistance of gold, it was necessary to completely improve the second layer of resin coating.
ところで樹脂皮膜の耐食性を向上させるには樹脂皮膜中
に６価りロム？＠有させればよいのであるが、かかるた
めには鋼板全６価クロムを含有する樹脂皮膜処理液で処
理する必要がめる。しかしながら樹脂皮膜処理液に６価
クロムを言Ｍさぜるのに無水クロム酸やクロムｒＩＲ塩
を添加すると６１脂分子の水酸基が酸化されて処理液は
ゲル化し、鋼板に塗布で＠な（なり、６価クロムは３価
クロムに還元されて耐食性？発揮しなくなる。このため
従来樹脂皮膜中に６価りロム？含有させることは困難で
あった。By the way, is it possible to improve the corrosion resistance of a resin film by adding hexavalent ROM in the resin film? It would be fine if the steel plate had a chromium content, but in order to do so, it is necessary to treat the steel plate with a resin film treatment solution containing all hexavalent chromium. However, when adding chromic anhydride or chromium rIR salt to a resin film treatment solution containing hexavalent chromium, the hydroxyl groups of 61 fat molecules are oxidized and the treatment solution turns into a gel. , hexavalent chromium is reduced to trivalent chromium and no longer exhibits corrosion resistance.For this reason, it has conventionally been difficult to include hexavalent chromium in a resin film.
本発明はこのように従来困難でめった樹脂皮膜中への６
価クロムの含有會可能にした表面処理鋼板を提供するも
のである。In this way, the present invention is able to penetrate into the resin film, which has been difficult and rare in the past.
The present invention provides a surface-treated steel sheet that can contain valent chromium.
（４）問題点全解決するための手段
不発ＦＰＪは樹脂皮膜の樹脂成分を水酸基ケ有しない水
分散性共重合体にすることにより処理液段階で樹脂が酸
イ［されないようにするとともに、その共重合体の酸価
紮調整して皮膜の耐水性、密着性全向上させたものでる
る。丁なわ）本発明は樹脂に！
皮膜の樹脂としてＡ）一般式ＣＨ，−Ｃ−Ｃ０ＯＲ，（
式中Ｒ１はＨ，Ｃｌ−１３，）ｔ、はＣが１〜８のアル
キル基）で示される単量体の１種または２種以上１〜９
５重量％と、同α、β不飽相力・・ゲン酸単量一体３〜
２０′１重量％と、 ＜Ｃ＋これらの単量体と共重合可
能な単量体０〜５０重量％とｔ（但し囚、（均どよび（
ｑの合計は１００重量％〕乳化重合して得られる固形分
当りの酸価１０〜２００の共重合体樹脂？用いるのであ
る。ここで共重合体樹脂全構成する一般式ＣＨ，−Ｃ−
ＣＯＯＲ２単量体の例としては（メタ）アクリル酸メチ
ル、（メタ）アクリル酸エテル、（メタ）アクリル酸プ
ロピル、（メタ）アクリル酸メチル、（メタ）アクリル
ｒ１１．２−エチルヘキシルなと７％またα、β不飽和
カルゼン酸単量体の例としてはアクリル酸、メタアクリ
ル酸、イタコン酸、マレイン酸など會、さらＫこれらの
単量体と共重合可能な単量体の例としてはスチＶン、α
−メテルスチＶン、酢酸ビニル、塩化ビニル、塩化ビニ
リデンなど全それぞれ挙げることができる。(4) Measures to solve all problems In the case of unexploded FPJ, the resin component of the resin film is made of a water-dispersible copolymer that does not contain hydroxyl groups. By adjusting the acid value of the copolymer, the water resistance and adhesion of the film are completely improved. (Chinese rope) This invention is made of resin! A) General formula CH, -C-C0OR, (
In the formula, R1 is H, Cl-13, and t is an alkyl group having 1 to 8 carbon atoms.
5% by weight, and the same α and β unsaturation power... Genic acid monomer is 3~
20'1% by weight, <C+0 to 50% by weight of a monomer copolymerizable with these monomers, and t (however, (uniformity and (
The total of q is 100% by weight] A copolymer resin with an acid value of 10 to 200 per solid content obtained by emulsion polymerization? It is used. Here, the general formula of the entire copolymer resin is CH, -C-
Examples of COOR2 monomers include methyl (meth)acrylate, ether (meth)acrylate, propyl (meth)acrylate, methyl (meth)acrylate, and 7% (meth)acrylic r11.2-ethylhexyl. Examples of α, β unsaturated carboxylic acid monomers include acrylic acid, methacrylic acid, itaconic acid, maleic acid, and examples of monomers copolymerizable with these monomers include styrene. N, α
- Meterstine, vinyl acetate, vinyl chloride, vinylidene chloride, etc. can all be mentioned.
筐た共重合体樹脂の酸価勿固形分肖ｐｌＯ〜２００に丁
４るのは、酸価が１０未満であると耐水性はよいが鋼板
に対する密着性が劣って（るからであり、また２００葡
越えると耐水性が劣って耐食性が低下して（るからであ
る。好ましくはこの酸価は１５〜１００にすると耐水性
、密着性に優れた皮膜になる。The reason why the acid value and solids content of the copolymer resin used in the casing is between 10 and 200 is because if the acid value is less than 10, the water resistance is good but the adhesion to the steel plate is poor. If it exceeds 200, the water resistance will be poor and the corrosion resistance will be lowered. Preferably, if the acid value is 15 to 100, the film will have excellent water resistance and adhesion.
そして本発明ではかかる共重合体樹脂の樹脂皮膜中に６
価クロム源としてクロム酸塩全含有させるとともＫ、皮
膜の物性ＪＰ耐食性全向上させるためにシリカゾル會含
有させる。クロム酸塩としては水溶性で安価なものが好
筐しく１例えばクロム酸アンモニウム、クロム酸マグネ
シウム、重クロム酸カリウム、クロム酸カルシウム、ク
ロム酸亜鉛、クロム酸マンガン、クロム酸ニッケル、ク
ロム酸コノ々ルト、クロム酸ストロンチウムなどが適し
ている。In the present invention, the resin film of such a copolymer resin contains 6
In addition to fully containing chromate as a source of valent chromium, K and silica sol are also included to completely improve the physical properties and corrosion resistance of the coating. Water-soluble and inexpensive chromates are preferable, such as ammonium chromate, magnesium chromate, potassium dichromate, calcium chromate, zinc chromate, manganese chromate, nickel chromate, and chromate. Rut, strontium chromate, etc. are suitable.
樹脂皮膜中に含有させるこれらのクロム酸塩？よびシリ
カゾルの量としては共重合体樹脂１００重量部当ククり
ム酸塩の場合０．１〜５０重量部、シリカゾルの場合０
．５〜１００重量部にするのが好ましい。また＃脂皮膜
の皮膜厚としては０．２〜１０μｍにするのが好ましい
。このような含有量によび皮膜厚の樹脂皮膜は共重合体
樹脂゛２００〜４００９／ＩＩ、クロム酸塩０．２〜２
００ ｉ／〕、シリカゾル１〜４００，９．メｅｔ含有
する処理液によシ形成することができる。Are these chromates included in the resin film? The amount of silica sol is 0.1 to 50 parts by weight for cucumate per 100 parts by weight of copolymer resin, and 0 for silica sol.
．． The amount is preferably 5 to 100 parts by weight. Further, it is preferable that the thickness of the #greasy film is 0.2 to 10 μm. The resin film with such content and film thickness is made of copolymer resin ゛200-4009/II, chromate 0.2-2
00 i/], silica sol 1-400, 9. It can be formed using a treatment solution containing metal.
本発明の表面処理鋼板は鋼板に直Ｍ便４脂皮膜？形成し
たものでも高耐食性？発揮する。しかしさらに高耐食性
を発揮するものにするには鋼板にクロメート皮膜全形成
し、その上に樹脂皮膜ｉ形成したものにする。この場合
クロメート皮膜は反応型、塗布型など一般に種類は問わ
ないが、皮膜量は全クロム量で５〜２００１ｎ９／Ｌ２
にするのが好ましい。な８いずれの場合においても鋼板
は冷延鋼板、めっき鋼板（例えば溶融亜鉛めっき鋼板、
電気亜鉛めっき鋼板、溶融アルミニウムめっきｊＭ鈑。Is the surface treated steel sheet of the present invention a direct mail 4 oil film on the steel sheet? Does the formed product have high corrosion resistance? Demonstrate. However, in order to exhibit even higher corrosion resistance, a chromate film is formed on the entire steel plate, and a resin film is formed on top of the chromate film. In this case, the type of chromate film generally does not matter, such as reactive type or coating type, but the total amount of chromate film is 5 to 2001n9/L2
It is preferable to 8 In either case, the steel sheet may be a cold-rolled steel sheet, a galvanized steel sheet (for example, a hot-dip galvanized steel sheet,
Electrogalvanized steel sheet, hot-dip aluminum plated jM sheet.
ＡＩ −Ｚｎ合金めつき鋼板、電気合金めつき鋼板、電
気複層めつき鋼板、合金化溶融亜鉛めっき鋼板。AI-Zn alloy plated steel sheet, electric alloy plated steel sheet, electric double layer plated steel sheet, alloyed hot-dip galvanized steel sheet.
蒸着めっき鋼板などうのいずれでもよい。Any material such as vapor-deposited steel plate may be used.
（５）作 用
本発明の表面処理鋼板は樹脂皮膜中に含有されているク
ロム酸塩が防食作用含有するのでクロム酸塩により腐食
に抑制され、鋼板の耐食性が向上する。またシリカゾル
との併用により皮膜と鋼板の密着性？向上させる。(5) Effects Since the chromate contained in the resin coating of the surface-treated steel sheet of the present invention has an anticorrosion effect, the chromate suppresses corrosion and improves the corrosion resistance of the steel sheet. Also, the adhesion between the film and the steel plate can be improved by using it in combination with silica sol. Improve.
（り実施例
メチルメタアクリレート５０重量％と、ブチルアクリレ
ート４０重量％と、アクリル酸１０重量７０と全乳化重
合し℃得られたアクリルエマルションし４１（脂分４０
重蓋％、ＰＨ２，３，粘度２５Ｃ）’５（２５℃、Ｂ型
粘度計）、固形分当りの酸価約７８％以下このエマルシ
ョン中の共重合体樹脂ｒＸとする〕８工びメチルアクリ
レート５５重量％と、ブチルアクリレート４０重量％と
、アクリル酸５重量％と〒乳化重合して得られたアクリ
ルエマルション（ｍ脂分４０重量％、ＰＨ２，６、粘度
１５０ＣＰＳ（同上）、固形分白りの酸価的４０゜以下
このエマルション中の共重合体ｍ脂ｉＹとする〕にクロ
ム酸塩８よびシリカゾル（スノーテックス０、日産化学
表品）を種々添加して樹脂反腹処理液會調整した後この
処理液會鋼板の表面に直接または鋼板の表面にクロメー
−−ト皮Ｍｗ形成して、その上に翅布することにより表
面処理銅板を製造した。製造の際の鋼板としては板厚０
．６■のもの全使用し、製造工程、クロメート皮膜の形
成は次のようにして行った。(Example) Acrylic emulsion obtained by total emulsion polymerization with 50% by weight of methyl methacrylate, 40% by weight of butyl acrylate, and 10% by weight of acrylic acid at 41°C (fat content: 40% by weight)
Copolymer resin rX in this emulsion] 8-stage methyl acrylate Acrylic emulsion obtained by emulsion polymerization of 55% by weight of butyl acrylate, 40% by weight of acrylic acid, and 5% by weight of acrylic acid (fat content 40% by weight, pH 2.6, viscosity 150CPS (same as above), solid content white) Chromate 8 and silica sol (Snowtex 0, Nissan Kagaku Hyohin Co., Ltd.) were added to various amounts of chromate 8 and silica sol (Snowtex 0, Nissan Kagaku Hyohin Co., Ltd.) to prepare a resin anti-absorption treatment solution. Thereafter, a surface-treated copper plate was produced by using this treatment solution to form a chromate skin Mw directly on the surface of the steel plate or on the surface of the steel plate, and then applying a cloth on top of it.
．． The manufacturing process and the formation of the chromate film were carried out as follows.
（イ）製造工程
鋼板→脱脂→（クロメート処理）−→樹脂皮膜処理液塗
布→乾燥（１５０℃、ｉｏ秒）
（ロ）クロメート皮膜の形成
Ｃｒ ０３２０ ＭＡ、Ｎａ２ＳｉＦ６１１１／４３０
）処理液（４０℃）中に５秒浸漬した後スクイズロール
で過剰に付着した処理液を除去した。(B) Manufacturing process Steel plate → Degreasing → (Chromate treatment) - → Application of resin film treatment liquid → Drying (150°C, IO seconds) (B) Formation of chromate film Cr 0320 MA, Na2SiF6111/430
) After immersing the sample in a treatment liquid (40°C) for 5 seconds, excess treatment liquid was removed using a squeeze roll.
ｍ１表はこのようにし℃製造した表面処理鋼板を塩水噴
霧試験！６エび湿潤試験した紹果會示すもので、鋼板に
直接樹脂皮膜音形成したものでもカ）なりの耐食性含有
し、かつ第１層にクロメート皮膜を形成したものも第２
層の樹脂皮膜中にクロム酸塩８よびシリカゾル會言有し
な（−ものに比べて耐食性が優れている。なと塩水噴霧
試験と湿潤試（験は鋼板表面に達する切込みｔ入れて、
塩水噴霧試験の場合はＪＩＳ Ｚ２３７１に基き冷延鋼
板を処理したものｒ１２４時間、めっき鋼板髪処理した
ものは５００時間試験を行℃・、また湿溝試験の場合は
温度５０℃、湿度９８％で５００時間試験を行って、試
験波切込み部にセロテープを一旦貼付けて急速にはがす
方法にニジ評価した。評価基準は次の通りである。The m1 table shows the salt spray test of surface-treated steel sheets produced in this way! The results show that a 6-layer wet test was carried out by the Shaokakai, and even those with a resin film formed directly on the steel plate have some degree of corrosion resistance, and those with a chromate film formed on the first layer also have a certain degree of corrosion resistance.
The resin film of the layer contains chromate 8 and silica sol, which has superior corrosion resistance compared to the resin film.
In the case of the salt spray test, the cold-rolled steel plate treated based on JIS Z2371 was tested for 124 hours, and the plated steel plate was tested for 500 hours at a temperature of 50°C and humidity of 98% in the case of the wet groove test. The test was conducted for 500 hours, and the method of once pasting cellophane tape on the test wave notch and then rapidly peeling it off was evaluated. The evaluation criteria are as follows.
◎ 剥離なし
○ 剥離＠筐たは錆の発生幅が切込み部１９１ｍ以下
Δ 剥離幅または錆の発生幅が切込み部よりｌ■會超え
、３ｗ以下
、 × 剥離幅または錆の発生幅が切込み部より３ｍ超
次に前記表面処理鋼板にメラミンアルキッド系塗料を乾
燥１！ｉ膜厚にて３０μｍ塗装して２００℃で２０分間
焼付乾燥して塗装鋼板にした。その後塗装鋼板に対して
塗膜密着性試験を行うとともに、鋼板素地に達する切込
み聖人れて、前記のような栄件で塩水噴霧試験８．Ｊ：
び湿潤試験ｔそれぞれ５００時間？よび１０００時間行
つ″′Ｃ塗膜＠看性および耐食性全調査した。第２表は
この結果を示すものであるが塗膜密着性は良好であり、
耐食性も樹脂皮膜中にクロム酸塩′？ｔ、官有しないも
のに比べ優れている。◎ No peeling ○ Peeling @ Case or rust width is less than 191m from the cut Δ Width of peeling or rust is more than 1 cm than the cut, 3w or less, × Width of peeling or rust is less than the cut Next, dry the melamine alkyd paint on the surface-treated steel plate for over 3 m! It was coated with a film thickness of 30 μm and baked and dried at 200° C. for 20 minutes to obtain a coated steel plate. Thereafter, a paint film adhesion test was conducted on the painted steel plate, and a cut was made to reach the base steel plate, and a salt spray test was conducted under the conditions described above. J:
500 hours each? The properties and corrosion resistance of the ``'C coating film were investigated for 1,000 hours.Table 2 shows the results, and the adhesion of the coating film was good.
Is corrosion resistance also due to chromate in the resin film? t, superior to non-government owned ones.
な８塗膜密着性試験は次の要領で行い、塩水噴霧試験お
よび湿潤試験の評価は塗装前の表面処理鋼板の場合と同
様に行った。The coating film adhesion test was conducted as follows, and the salt spray test and wetness test were evaluated in the same manner as for the surface-treated steel sheet before painting.
（イ）デュポン衝撃試験
ポンチ径１／２インチ、重量５００ｇの垂Ｍｒ５０ｃｒ
ｎの嶋δから落下させた後衝撃部にセロテープ？貼付け
て急速にはがして塗膜剥離状態１次の基準で評価した。(a) DuPont impact test 1/2 inch punch diameter, 500g weight Mr50cr
Sellotape on the impact part after dropping it from N's Shima δ? It was pasted and rapidly peeled off, and the state of paint film peeling was evaluated based on the following criteria:
◎ 塗膜剥離なし
○ わずかに塗膜が剥離したもの
Δ かなり塗膜か剥離したもの
× 塗膜が３０％以上剥離したもの
（ロ）ゴパン目エリクセン試験
ゴパン目切込み部ｔエリクセン試験機で６■押出した後
押出し部にセロテープを一旦貼付けて急速にはがして、
塗膜剥離状態ｔデュポン衝撃試験と同基準で評価した。◎ No peeling of the paint film ○ Slight peeling of the paint film Δ Severe peeling of the paint × Cases with 30% or more of the paint peeling off (b) Gopan Erichsen test Gopan notch t Ericksen tester: 6■ After extruding, attach sellotape to the extruded part and quickly peel it off.
The state of paint film peeling was evaluated using the same criteria as the DuPont impact test.
←１１８０度密着折曲げ試験
折曲げ部外面にセロテープデ一旦貼付けた後急速にはが
して塗膜剥離状態ｔデュポン衝撃試験と同基準で評価し
た。←1180 degree close contact bending test Cellotape was once applied to the outside of the bent portion and then rapidly peeled off to evaluate the peeling state of the coating using the same criteria as the DuPont impact test.
（７）発明の詳細
な説明した如く、本発明の表面処理鋼板は樹脂皮膜の樹
脂が水酸基？有しないので、製造の際処理液中にクロム
ｒｊＲ塩ン＠宥δぜても、樹脂は酸化されず、ゲル化し
ないものである。筐だ樹脂皮Ｍはクロム酸塩′ｊ６よび
シリカゾルを言Ｍするので、耐食性はクロム酸塩？よび
シリカゾルｔ＠有しない場合に比べて向上する。(7) As explained in detail about the invention, in the surface-treated steel sheet of the present invention, does the resin of the resin film have hydroxyl groups? Therefore, even if chromium rjR salt is added to the treatment solution during production, the resin will not be oxidized and will not gel. The resin skin M on the housing is made of chromate and silica sol, so is the corrosion resistance due to chromate? and improved compared to the case without silica sol t@.
Claims (2)
があります▼（式中Ｒ＿１はＨ、ＣＨ＿３、Ｒ＿２はＣ
が１〜８のアルキル基）で示される単量体の１種または
２種以上１〜９５重量％と、（Ｂ）α、β不飽和カルボ
ン酸単量体３〜２０重量％と、（Ｃ）これらの単量体と
共重合可能な単量体０〜５０重量％とを〔但し（Ａ）、
（Ｂ）および（Ｃ）の合計は１００重量％〕乳化重合し
て得られる固形分当りの酸価１０〜２００の共重合体樹
脂皮膜で、その樹脂皮膜中にクロム酸塩とシリカゾルと
を含有するものが形成されていることを特徴とする高耐
食性表面処理鋼板。(1) On the surface of the steel plate, there are (A) general formulas▲mathematical formulas, chemical formulas, tables, etc.▼(In the formulas, R_1 is H, CH_3, R_2 is C
1 to 95% by weight of one or more monomers represented by 1 to 8 alkyl groups), 3 to 20% by weight of (B) α,β unsaturated carboxylic acid monomer, and (C ) 0 to 50% by weight of a monomer copolymerizable with these monomers [However, (A),
The total of (B) and (C) is 100% by weight] A copolymer resin film with an acid value of 10 to 200 per solid content obtained by emulsion polymerization, containing chromate and silica sol in the resin film. A highly corrosion-resistant surface-treated steel sheet characterized by being formed with
ロメート皮膜の上に（Ａ）一般式▲数式、化学式、表等
があります▼（式中Ｒ＿１はＨ、ＣＨ＿３、Ｒ＿２はＣ
が１〜８のアルキル基）で示される単量体の１種または
２種以上１〜９５重量％と、（Ｂ）α、β不飽和カルボ
ン酸単量体３〜２０重量％と、（Ｃ）これらの単量体と
共重合可能な単量体０〜５０重量％とを〔但し（Ａ）、
（Ｂ）および（Ｃ）の合計は１００重量％〕乳化重合し
て得られる固形分当りの酸価１０〜２００の共重合体樹
脂皮膜で、その樹脂皮膜中にクロム酸塩とシリカゾルと
を含有するものが形成されていることを特徴とする高耐
食性表面処理鋼板。(2) A chromate film is formed on the surface of the steel plate, and on the chromate film (A) there are general formulas ▲ mathematical formulas, chemical formulas, tables, etc. ▼ (in the formula, R_1 is H, CH_3, R_2 is C
1 to 95% by weight of one or more monomers represented by 1 to 8 alkyl groups), 3 to 20% by weight of (B) α,β unsaturated carboxylic acid monomer, and (C ) 0 to 50% by weight of a monomer copolymerizable with these monomers [However, (A),
The total of (B) and (C) is 100% by weight] A copolymer resin film with an acid value of 10 to 200 per solid content obtained by emulsion polymerization, containing chromate and silica sol in the resin film. A highly corrosion-resistant surface-treated steel sheet characterized by being formed with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14384084A JPS6123767A (en) | 1984-07-11 | 1984-07-11 | High-corrosion resistant surface treated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14384084A JPS6123767A (en) | 1984-07-11 | 1984-07-11 | High-corrosion resistant surface treated steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6123767A true JPS6123767A (en) | 1986-02-01 |
| JPH0559194B2 JPH0559194B2 (en) | 1993-08-30 |
Family
ID=15348168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14384084A Granted JPS6123767A (en) | 1984-07-11 | 1984-07-11 | High-corrosion resistant surface treated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123767A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274543A1 (en) * | 1986-07-14 | 1988-07-20 | Nihon Parkerizing Co., Ltd. | Composition for treating metal surface and treating process |
| EP0787831A1 (en) * | 1995-08-11 | 1997-08-06 | Nippon Steel Corporation | Resin-chromate composition and surface-treated metal sheet |
| WO1998012362A1 (en) * | 1996-09-20 | 1998-03-26 | Toyo Kohan Co., Ltd. | Post-treating solution of plated steel sheet having improved solderability, post-treated plate and method of production thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434406A (en) * | 1977-08-15 | 1979-03-13 | Matsushita Electric Works Ltd | Controlling of green sheet quality of paper making machine |
| JPS58177476A (en) * | 1982-04-12 | 1983-10-18 | Kawasaki Steel Corp | Surface treatment of steel plate electroplated with zinc |
| JPH0454745A (en) * | 1990-06-22 | 1992-02-21 | Nippon Telegr & Teleph Corp <Ntt> | Time synchronization system |
-
1984
- 1984-07-11 JP JP14384084A patent/JPS6123767A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434406A (en) * | 1977-08-15 | 1979-03-13 | Matsushita Electric Works Ltd | Controlling of green sheet quality of paper making machine |
| JPS58177476A (en) * | 1982-04-12 | 1983-10-18 | Kawasaki Steel Corp | Surface treatment of steel plate electroplated with zinc |
| JPH0454745A (en) * | 1990-06-22 | 1992-02-21 | Nippon Telegr & Teleph Corp <Ntt> | Time synchronization system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0274543A1 (en) * | 1986-07-14 | 1988-07-20 | Nihon Parkerizing Co., Ltd. | Composition for treating metal surface and treating process |
| EP0787831A1 (en) * | 1995-08-11 | 1997-08-06 | Nippon Steel Corporation | Resin-chromate composition and surface-treated metal sheet |
| EP0787831A4 (en) * | 1995-08-11 | 1998-11-11 | Nippon Steel Corp | Resin-chromate composition and surface-treated metal sheet |
| WO1998012362A1 (en) * | 1996-09-20 | 1998-03-26 | Toyo Kohan Co., Ltd. | Post-treating solution of plated steel sheet having improved solderability, post-treated plate and method of production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0559194B2 (en) | 1993-08-30 |
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