JPS5845903B2 - Treatment method for galvanized coating surface - Google Patents

Treatment method for galvanized coating surface

Info

Publication number
JPS5845903B2
JPS5845903B2 JP8462380A JP8462380A JPS5845903B2 JP S5845903 B2 JPS5845903 B2 JP S5845903B2 JP 8462380 A JP8462380 A JP 8462380A JP 8462380 A JP8462380 A JP 8462380A JP S5845903 B2 JPS5845903 B2 JP S5845903B2
Authority
JP
Japan
Prior art keywords
epoxy resin
coating
weight
galvanized
composition
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
Application number
JP8462380A
Other languages
Japanese (ja)
Other versions
JPS5710652A (en
Inventor
裕 市村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Toryo KK filed Critical Dai Nippon Toryo KK
Priority to JP8462380A priority Critical patent/JPS5845903B2/en
Publication of JPS5710652A publication Critical patent/JPS5710652A/en
Publication of JPS5845903B2 publication Critical patent/JPS5845903B2/en
Expired legal-status Critical Current

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  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)

Description

【発明の詳細な説明】 本発明は亜鉛メッキ、特に溶融亜鉛メッキ被膜表面の防
蝕及び着色のための処理方法に係る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a treatment method for galvanizing, particularly for preventing corrosion and coloring the surface of a hot-dip galvanized coating.

従来より、鉄鋼材或いは鉄鋼製品の長期防蝕方法として
、亜鉛メッキが施されており、特に送電鉄塔を中心とし
た大型構造物においては溶融亜鉛メッキ被覆がなされて
いるのは周知の通りである。
Conventionally, galvanizing has been applied as a long-term corrosion protection method for steel materials or steel products, and it is well known that large structures such as power transmission towers in particular are coated with hot-dip galvanizing.

この防蝕方法は一般に用いられている塗料被覆による方
法に比べると、はるかに優れるものであるが最近の如く
大気汚染の進行に伴なって亜鉛の消耗が著しくなると、
以前の様に長期の防蝕効果が期待出来なくなっているの
が現状である。
This corrosion prevention method is far superior to the commonly used method of coating with paint, but as air pollution progresses and zinc is depleted rapidly,
Currently, it is no longer possible to expect long-term corrosion protection effects as before.

亜鉛メッキ本来の長期防蝕を効果的ならしめるためには
、有機塗膜を亜鉛メッキ表面に存在せしめて、水、大気
等の腐蝕性因子との接触を防止する事が必要となってお
り、更には最近の構造物の大型化につれて航空標識とし
ての必要上或いは環境調和の美観上の観点から構造物の
着色美装の必要性が強く要望されている。
In order to make the long-term corrosion protection inherent in galvanizing effective, it is necessary to have an organic coating on the galvanized surface to prevent contact with corrosive factors such as water and the atmosphere. With the recent increase in the size of structures, there is a strong need for colored and beautiful structures to be used as aviation signs or from the aesthetic point of view of harmonizing with the environment.

前記の如き理由により亜鉛メッキ表面への塗装の必要か
ら油性系塗料或いは合成樹脂系塗料が塗布されているの
が現状である。
For the reasons mentioned above, at present, oil-based paints or synthetic resin-based paints are applied to galvanized surfaces.

しかしこの種の塗料は必ずしも満足できる状態になく、
早期に塗膜が亜鉛メッキ層の表面から剥離離脱を生じて
しまう。
However, this type of paint is not always in a satisfactory condition;
The paint film peels off from the surface of the galvanized layer at an early stage.

更に構造物が大型化するにつれて、メンテナンスのため
の塗替作業に困難を来たすため長期耐久性、保色性等の
点でトップコートにエポキシ樹脂エナメル、ポリウレタ
ン樹脂エナメル等の合成樹脂系塗料の使用が考慮されつ
Xあるが、これらのトップコートの密着性を改善するた
めの亜鉛メッキ表面の処理方法に決定的手法を欠くのが
現状である。
Furthermore, as structures become larger, repainting for maintenance becomes difficult, so synthetic resin paints such as epoxy resin enamel and polyurethane resin enamel are used as top coats for long-term durability and color retention. However, there is currently no definitive method for treating galvanized surfaces to improve the adhesion of these top coats.

本発明は特定配合量から成る塗料組成物を亜鉛メッキ表
面に塗布する処理方法により上記の如き現状の問題点を
解決しようとするものである。
The present invention attempts to solve the above-mentioned current problems by a treatment method in which a coating composition comprising a specific amount is applied to a galvanized surface.

即ち本発明は、 (イ)エポキシ樹脂又はポリウレタン樹脂組成物の固型
分90〜15重量袈、 ・I(ロ)金属亜
鉛粉5〜50重量★および (ハ)鉛酸カルシウム5〜35重量φを混合して成る塗
料組成物を塗布、乾燥せしめて塗膜層を形成することを
特徴とする亜鉛メッキ被膜表面の処理方法に係る。
That is, the present invention provides: (a) solid content of the epoxy resin or polyurethane resin composition: 90 to 15 weight, (b) metal zinc powder, 5 to 50 weight ★, and (c) calcium leadate, 5 to 35 weight φ This relates to a method for treating the surface of a galvanized coating, which comprises applying a coating composition comprising a mixture of the following: and drying the coating composition to form a coating layer.

本発明に用いるエポキシ樹脂組成物とは末端に少なくと
も2個以上のエポキシ基を含有するエポキシ樹脂と、エ
ポキシ樹脂と化学反応を呈する架橋剤との混合物から成
るものである。
The epoxy resin composition used in the present invention is composed of a mixture of an epoxy resin containing at least two epoxy groups at its terminal end and a crosslinking agent that chemically reacts with the epoxy resin.

前記エポキシ樹脂としては例えば直鎖状ビスフェノール
型エポキシ樹脂、メチル置換ビスフェノール型エポキシ
樹脂、側鎖状ビスフェノール型エポキシ樹脂、フェノー
ルノボラック型エポキシ樹脂、クレゾール型エポキシ樹
脂、ポリフェノール型エポキシ樹脂、脂肪族型エポキシ
樹脂、芳香族型エポキシ樹脂、環状脂肪型エポキシ樹脂
、エーテルエステル型工ポキシ樹脂等があり、市販され
ている商品名としては、例えばエピコート(シェル化学
製商品名)、エピクロン(犬日本インキ化学工業製商品
名)、アラルダイト(チバガイギー製商品名)などが代
表例として挙げられる。
Examples of the epoxy resin include linear bisphenol type epoxy resin, methyl-substituted bisphenol type epoxy resin, side chain bisphenol type epoxy resin, phenol novolac type epoxy resin, cresol type epoxy resin, polyphenol type epoxy resin, and aliphatic type epoxy resin. , aromatic type epoxy resin, cyclic aliphatic type epoxy resin, ether ester type engineered epoxy resin, etc. Commercially available product names include Epicote (trade name manufactured by Shell Chemical Co., Ltd.), Epiclon (trade name manufactured by Inu Nippon Ink Chemical Industry Co., Ltd.), etc. Typical examples include Araldite (product name manufactured by Ciba Geigy) and Araldite (product name manufactured by Ciba Geigy).

これらは1種のみを用いることに限定するものではなく
、2種以上を併用して各々の特徴を出すことも可能であ
る。
These are not limited to the use of only one type, but it is also possible to use two or more types in combination to bring out the characteristics of each.

前記エポキシ樹脂の架橋剤としては、エポキシ樹脂分子
中に含有されるエポキシ基もしくは水酸基と相互に反応
する基を有するもので、公知一般にエポキシ樹脂架橋剤
として使用されているものであればいずれでも良い。
The crosslinking agent for the epoxy resin may be any one that has a group that reacts with the epoxy group or hydroxyl group contained in the epoxy resin molecule and is commonly used as an epoxy resin crosslinking agent. .

例えばジエチレントリアミン、トリエチレンテトラミン
、メタキシリレンジアミン、メタフェニレンジアミン、
複素環ジアミンなどの脂肪族又は芳香族ポリアミン;ジ
メチルアミノメチルフェノール、トリス(ジメチルアミ
ノメチル)フェノール、ピペリジン等の第2級、第3級
アミン;ポリアミド樹脂;アミン付加物(一般にアミン
アダクトの名称で知られる)等のアミノ系化合物、トリ
レンジイソシアネート、ヘキサメチレンジイソシアネー
ト等のイソシアネート化合物の他、フェノール樹脂、酸
無水物、メラミン樹脂、尿素樹脂等が挙げられる。
For example, diethylenetriamine, triethylenetetramine, metaxylylenediamine, metaphenylenediamine,
Aliphatic or aromatic polyamines such as heterocyclic diamines; secondary and tertiary amines such as dimethylaminomethylphenol, tris(dimethylaminomethyl)phenol, piperidine; polyamide resins; amine adducts (generally referred to as amine adducts); In addition to amino compounds such as (known), isocyanate compounds such as tolylene diisocyanate and hexamethylene diisocyanate, phenol resins, acid anhydrides, melamine resins, urea resins, and the like.

本発明の対象が一般には大型鋼材及び大型鋼製品である
ため常温もしくは強制乾燥程度でエポキシ樹脂と架橋剤
の化学反応が進行するものが好ましくアミノ系化合物が
最も好ましい。
Since the objects of the present invention are generally large-sized steel materials and large-sized steel products, it is preferable to use an amino-based compound that allows the chemical reaction between the epoxy resin and the crosslinking agent to proceed at room temperature or forced drying.

本発明のポリウレタン樹脂組成物とは、分子中に少なく
とも2個以上の水酸基を含有するポリエステル樹脂、ポ
リエステル変性アクリル樹脂、ポリエステル変性エポキ
シ樹脂、エポキシ変性アクリル樹脂等のポリオールとト
リレンジイソシアネート、ヘキサメチレンジイソシアネ
ート等のインシアネート化合物との混合物である。
The polyurethane resin composition of the present invention refers to a polyol containing at least two or more hydroxyl groups in the molecule, such as a polyester resin, a polyester-modified acrylic resin, a polyester-modified epoxy resin, an epoxy-modified acrylic resin, and tolylene diisocyanate, hexamethylene diisocyanate. It is a mixture with incyanate compounds such as.

本発明に使用される塗料組成物は、(イ)前記エポキシ
樹脂又はポリウレタン樹脂組成物の固型分90〜15重
量袈好ましくは70〜30重量φ、(ロ)金属亜鉛粉5
〜50重量φ好ましくは20〜40重量饅、および(ハ
)鉛酸カルシウム5〜35重量φ好ましくは10〜30
重量φを混合して戒るものである。
The coating composition used in the present invention includes (a) a solid content of the epoxy resin or polyurethane resin composition of 90 to 15 weight φ, preferably 70 to 30 weight φ, and (b) metal zinc powder of 5
-50 weight φ preferably 20-40 weight cake, and (c) calcium leadate 5-35 weight φ preferably 10-30
It is advisable to mix the weight φ.

前記塗料組成物に於て、金属亜鉛粉及び鉛酸カルシウム
の量が、いずれか一方でも5重量φ以下である場合は亜
鉛メッキ表面に対する塗膜の長期密着附与効果が殆んど
なく又金属亜鉛粉の量が50重重量上り多くなると初期
の段階で塗膜の密着不良を生ずる。
In the above coating composition, if the amount of either metal zinc powder or calcium leadate is less than 5 weight φ, there is almost no effect on imparting long-term adhesion of the coating film to the galvanized surface. If the amount of zinc powder is increased by 50% by weight, poor adhesion of the coating film will occur at an early stage.

一方鉛酸カルシウムの量が35重重量上り多くなると、
金属亜鉛粉と同様に塗膜の初期密着性を阻害すると共に
製品のコストアップとなるため経済上好ましくない。
On the other hand, when the amount of calcium leadate increases by 35 weight,
Like metallic zinc powder, it impedes the initial adhesion of the coating and increases the cost of the product, so it is not economically desirable.

本発明に使用される塗料組成物においては、前記量比の
組成を基本とするが、必要に応じてタルク、マイカ、酸
化鉄、ジンククロメート等の顔料、カップリング剤、キ
レート化合物等の添加剤、その他溶媒、タレ止め剤、沈
澱防止剤、表面調整剤等公知一般に塗料用原料として使
用されているものを用いることも可能である。
The coating composition used in the present invention is basically composed of the above-mentioned quantitative ratio, but if necessary, additives such as pigments such as talc, mica, iron oxide, and zinc chromate, coupling agents, and chelate compounds may be added. It is also possible to use other solvents, anti-sagging agents, anti-settling agents, surface conditioners, etc. that are known and commonly used as raw materials for paints.

本発明の方法は前記組成から成る塗料組成物を亜鉛メッ
キ表面に刷毛、スプレー、ローラー等の公知の方法によ
り、10〜300ミクロン程度の乾燥膜厚が得られる様
に調整して塗布し、エポキシ樹脂又はポリウレタン樹脂
と架橋剤が化学反応を呈し、塗膜乾燥するに必要な条件
で塗膜硬化をせしめればよい。
The method of the present invention is to apply a coating composition having the above-mentioned composition to a galvanized surface by a known method such as brushing, spraying, or rolling so as to obtain a dry film thickness of about 10 to 300 microns. The resin or polyurethane resin and the crosslinking agent may undergo a chemical reaction, and the coating film may be cured under conditions necessary for drying the coating film.

前記塗料組成物は、特安顔料を主成分とするため、必要
とする任意の色相が得がたいことがあり、その際には必
要に応じてポリウレタン樹脂塗料、エポキシ樹脂塗料、
塩化ゴム系塗料、塩化ビニル樹脂塗料、等各色任意塗料
を前記乾燥塗膜表面に上塗り塗料として塗り重ねすれば
よい。
Since the above-mentioned coating composition mainly contains cheap pigments, it may be difficult to obtain the desired hue, and in that case, polyurethane resin paint, epoxy resin paint,
Any desired color paint such as chlorinated rubber paint, vinyl chloride resin paint, etc. may be applied over the surface of the dried coating film as a top coat.

本発明の処理方法によって得られた塗膜は長期の曝露に
強い耐久性を示すもので、従来方法の如く短期間で塗膜
が剥離、離脱することがなく、長期に安定した密着性を
有するものである。
The coating film obtained by the treatment method of the present invention exhibits strong durability against long-term exposure, and has stable adhesion over a long period of time without peeling or detaching in a short period of time unlike in conventional methods. It is something.

以下に本発明の具体的効果を実施例により示す。The specific effects of the present invention will be shown below by way of examples.

尚、実施例及び比較例の「部」又は「係」は「重量部」
又は「重量φ」を意味する。
In addition, "part" or "part" in Examples and Comparative Examples is "part by weight".
Or it means "weight φ".

実施例 1 エポキシ当量450〜500の直鎖状ビスフェノール型
エポキシ樹脂と架橋剤として活性水素当量150のポリ
アミド樹脂を用いて、エポキシ樹脂と架橋剤を当量比で
混合しエポキシ樹脂組成物を得た。
Example 1 Using a linear bisphenol type epoxy resin having an epoxy equivalent of 450 to 500 and a polyamide resin having an active hydrogen equivalent of 150 as a crosslinking agent, the epoxy resin and the crosslinking agent were mixed in an equivalent ratio to obtain an epoxy resin composition.

次いで以下の表−1の組成より成る塗料組成物を調整し
た。
Next, a coating composition having the composition shown in Table 1 below was prepared.

同様に比較のため本発明範囲外の塗料組成物も調整した
Similarly, a coating composition outside the scope of the present invention was also prepared for comparison.

ついで溶融亜鉛メッキ鋼板の表面に乾燥膜厚が80ミク
ロンとなる様刷毛刷りし、20℃、75%RHの条件下
で7日間乾燥せしめ本発明及び比較用の供試片を得た。
Next, the surface of the hot-dip galvanized steel sheet was brushed to a dry film thickness of 80 microns, and dried for 7 days at 20° C. and 75% RH to obtain specimens for the present invention and for comparison.

実施例 2゜ エポキシ当量900〜1000の直鎖状ビスフェノール
型エポキシ樹脂と、架橋剤として活性水素当量200の
アミンアダクトを用いてエポキシ樹脂と架橋剤を当量比
で混合しエポキシ樹脂組成物を得た。
Example 2 A linear bisphenol type epoxy resin having an epoxy equivalent of 900 to 1000 and an amine adduct having an active hydrogen equivalent of 200 as a crosslinking agent were used to mix the epoxy resin and the crosslinking agent in an equivalent ratio to obtain an epoxy resin composition. .

ついで表−2の組成より成る塗料組成物を調整した。A coating composition having the composition shown in Table 2 was then prepared.

同様に比較のため本発明範囲外の塗料組成物も調整した
Similarly, a coating composition outside the scope of the present invention was also prepared for comparison.

ついで溶融亜鉛メッキ鋼板の表面に乾燥膜厚が50ミク
ロンとなる様、エアスプレー塗装し、20℃、75%R
Hの条件下☆・で24時間放置、乾燥せしめた。
Next, the surface of the hot-dip galvanized steel sheet was air-sprayed to a dry film thickness of 50 microns, and heated at 20°C and 75% R.
It was left to dry for 24 hours under H conditions ☆.

次いで当該塗膜表面にアクリル樹脂〔アクリディックA
−801:大日本インキ化学工業(株)製〕60部、ポ
リイソシアネート〔タケネートD−11ON;武田薬品
工業(株)製〕13部、酸化チタン15部、酢酸ブチル
12部から成るポリウレタン樹脂エナメルを乾燥膜厚3
0ミクロンとなる様エアスプレー塗装し、20℃、75
%RHの条件下で7日間放置乾燥せしめて本発明及び比
較用供試片を得た。
Next, acrylic resin [Acrydic A] was applied to the surface of the coating film.
-801: produced by Dainippon Ink and Chemicals Co., Ltd.] 60 parts, polyisocyanate [Takenate D-11ON; produced by Takeda Pharmaceutical Co., Ltd.] 13 parts, titanium oxide 15 parts, and butyl acetate 12 parts. Dry film thickness 3
Air spray paint to 0 micron, 20℃, 75℃
Test pieces for the present invention and for comparison were obtained by leaving them to dry for 7 days under conditions of % RH.

尚、比較試料/169として、前記実施例2で用いたと
同一のポリウレタン樹脂エナメルを直接溶融亜鉛メッキ
鋼板表面に乾燥膜厚50ミクロンとなる様にエアスプレ
ー塗装し、20°C175%RHの条件下で7日間放置
乾燥せしめて比較試料//69の供試片を得た。
As a comparative sample/169, the same polyurethane resin enamel used in Example 2 was air-sprayed directly onto the surface of a hot-dip galvanized steel sheet to a dry film thickness of 50 microns, and the coating was applied under conditions of 20°C and 175% RH. The specimen was left to dry for 7 days to obtain a comparative sample //69.

比較試験 1゜ 前記本発明試料/161〜12及び比較試料/I61〜
10の供試片を用い、初期の亜鉛メッキ表面に対する塗
膜の密着性を試験するため、カッターナイフを用いて塗
膜に幅1山間隔で亜鉛メッキ表面に達するタテ11本、
ヨコ11本の直角にクロスする切線を入れ100個のマ
ス目を形成せしめる。
Comparative test 1゜Samples of the present invention/161-12 and comparative samples/I61-
In order to test the adhesion of the coating film to the initial galvanized surface using 10 test pieces, 11 vertical strips reaching the galvanized surface were cut into the coating film at intervals of one thread in width using a cutter knife.
Insert 11 horizontal cutting lines that cross at right angles to form 100 squares.

次いで当該マス目箇所にセロハンテープを圧着した後瞬
時にセロハンテープを引剥し、マス目の残存数を百分率
として表わす。
Next, cellophane tape is pressed onto the squares, and then the cellophane tape is instantly peeled off, and the number of remaining squares is expressed as a percentage.

一方、他の供試片を用いて、供試片中央部で斜めにクロ
スする亜鉛メッキ表面に達する2本の切線を入れ、2年
6ケ月間の屋外曝露に供した。
On the other hand, using another specimen, two cut lines reaching the galvanized surface diagonally crossing in the center of the specimen were made, and the specimen was exposed outdoors for 2 years and 6 months.

2年半経過後、塗膜表面を観察して塗膜欠陥異状発生の
有無を確認した後に、同−供試片の塗膜に対して、前記
初期密着性試験と同一手順の処理、判定方法により長期
曝露後の密着性良否を判定した。
After two and a half years, the coating film surface was observed to confirm the presence or absence of coating film defects and abnormalities, and then the coating film of the same sample was treated and judged using the same procedure as the initial adhesion test. The adhesion quality after long-term exposure was determined.

上記比較試験の結果を表−3に示した。The results of the above comparative test are shown in Table 3.

比較試験 2 前記本発明試料涜1〜12および比較試料涜1〜10の
供試片を、3重量袈濃度の食塩水に6ケ月間浸漬したの
ち、供試片を取り出し、室温に24時間放置し、塗膜中
の水分を飛散せしめる。
Comparative Test 2 The test pieces of the invention samples 1 to 12 and comparative samples 1 to 10 were immersed in a saline solution with a concentration of 3 weight for 6 months, and then the test pieces were taken out and left at room temperature for 24 hours. and scatters the moisture in the paint film.

次いで当該供試片塗膜に幅1間間隔で亜鉛メッキ表面に
達するタテ11本、ヨコ11本の直角にクロスする切線
を入れ100個のマス目を形成せしめ、当該マス目箇所
にセロハンテープを圧着した後、瞬時にセロハンテープ
を引剥し、マス目の残存数を百分率で表わし、密着性の
良否を判定する。
Next, 11 vertical and 11 horizontal cutting lines were cut at right angles to the galvanized surface at intervals of 1 width to form 100 squares, and cellophane tape was applied to the squares. After crimping, the cellophane tape is instantly peeled off, and the number of remaining squares is expressed as a percentage to judge whether the adhesion is good or bad.

その結果を表−4に示した。The results are shown in Table-4.

上記比較試験結果表−3及び表−4より明らかに本発明
の如き特定配合組成の塗料組成物で処理した亜鉛メッキ
被膜は長期にわたる防食性を保持するとともに皮膜の密
着性も優れたものである。
From the above comparative test results Tables 3 and 4, it is clear that the galvanized coating treated with the coating composition having a specific composition as in the present invention maintains long-term corrosion resistance and also has excellent coating adhesion. .

尚、上記実施例においてはエポキシ樹脂組成物を用いた
が、ポリウレタン樹脂組成物(例えばポリエステル樹脂
とイソシアネート化合物から成る)においてもほぼ同様
の結果が得られる。
Although an epoxy resin composition was used in the above examples, substantially the same results can be obtained with a polyurethane resin composition (for example, composed of a polyester resin and an isocyanate compound).

Claims (1)

【特許請求の範囲】 1 (イ)エポキシ樹脂又はポリウレタン樹脂組成物の
固型分90〜15重量饅、 (ロ)金属亜鉛粉5〜50重量饅重量上び(ハ)鉛酸カ
ルシウム5〜35重量饅を混合して成る塗料組成物を塗
布、乾燥せしめて塗膜層を形成することを特徴とする亜
鉛メッキ被膜表面の処理方法。
[Scope of Claims] 1 (a) solid content of epoxy resin or polyurethane resin composition 90 to 15% by weight, (b) metal zinc powder 5 to 50% by weight, and (c) calcium leadate 5 to 35% by weight. A method for treating the surface of a galvanized coating, which comprises applying a coating composition prepared by mixing heavy weight rice cakes and drying the coating composition to form a coating layer.
JP8462380A 1980-06-24 1980-06-24 Treatment method for galvanized coating surface Expired JPS5845903B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8462380A JPS5845903B2 (en) 1980-06-24 1980-06-24 Treatment method for galvanized coating surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8462380A JPS5845903B2 (en) 1980-06-24 1980-06-24 Treatment method for galvanized coating surface

Publications (2)

Publication Number Publication Date
JPS5710652A JPS5710652A (en) 1982-01-20
JPS5845903B2 true JPS5845903B2 (en) 1983-10-13

Family

ID=13835798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8462380A Expired JPS5845903B2 (en) 1980-06-24 1980-06-24 Treatment method for galvanized coating surface

Country Status (1)

Country Link
JP (1) JPS5845903B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147466A (en) * 1982-02-26 1983-09-02 Nippon Steel Corp Paint composition for precoated steel plate
CN112500767B (en) * 2020-11-11 2022-07-08 上海海隆赛能新材料有限公司 Solvent-free heavy-duty anticorrosive paint matching system and use method thereof

Also Published As

Publication number Publication date
JPS5710652A (en) 1982-01-20

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