JP3502393B2 - Post-processing plate and method of manufacturing the same - Google Patents
Post-processing plate and method of manufacturing the sameInfo
- Publication number
- JP3502393B2 JP3502393B2 JP51451998A JP51451998A JP3502393B2 JP 3502393 B2 JP3502393 B2 JP 3502393B2 JP 51451998 A JP51451998 A JP 51451998A JP 51451998 A JP51451998 A JP 51451998A JP 3502393 B2 JP3502393 B2 JP 3502393B2
- Authority
- JP
- Japan
- Prior art keywords
- post
- plated steel
- resin
- steel sheet
- corrosion resistance
- 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 - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
発明の属する技術分野
本発明は半田用鋼板の後処理に係わり、半田の濡れ
性、経時性および耐食性を向上させるめっき鋼板の後処
理板、およびその製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a post-treatment of a steel plate for soldering, and relates to a post-treatment plate of a plated steel plate for improving solder wettability, aging property and corrosion resistance, and a method for manufacturing the same.
背景技術
一般に半田付けの可能な錫めっき鋼板、鉛−錫めっき
鋼板、銅めっき鋼板、および亜鉛めっき鋼板などは、使
用される環境にさらされた際にめっきの外観が変化し、
赤錆が発生する。そのため、めっき鋼板においては経時
した際の酸化膜の成長による半田性の低下を抑制する後
処理方法が求められている。また、最近の電子部品の分
野においては、基板などの耐食性の劣化を防止するた
め、塩素を含有する腐食性の強い活性なフラックスの使
用が拒否される傾向にあり、塩素を含有しないフラック
スを用いた場合においても半田の濡れ性に優れる材料が
求められている。塩素を含まない弱活性または非活性の
フラックスを使用した場合は、半田は金属基板に付着す
るものの、金属基板上を均一に濡らすまでに長時間を要
し、半田の濡れ性に劣り、その傾向は金属板の経時の増
大にともなって顕著となる。さらに、液晶フレームのよ
うに片面が半田性を有し、他の片面が電気絶縁性を有す
るめっき鋼板が必要とされている。BACKGROUND ART Generally, tin-plated steel sheets, lead-tin-plated steel sheets, copper-plated steel sheets, and zinc-plated steel sheets that can be soldered have a change in the appearance of plating when exposed to the environment in which they are used,
Red rust occurs. Therefore, there is a need for a post-treatment method for a plated steel sheet that suppresses the deterioration of solderability due to the growth of an oxide film over time. In addition, in the field of recent electronic components, in order to prevent deterioration of corrosion resistance of substrates, etc., there is a tendency to reject the use of chlorine-containing, highly corrosive, active fluxes. Even in such a case, a material having excellent solder wettability is required. When using a weakly active or inactive flux that does not contain chlorine, the solder adheres to the metal substrate, but it takes a long time to evenly wet the metal substrate, resulting in poor solder wettability. Becomes more remarkable as the metal plate ages. Further, there is a need for a plated steel plate having a soldering property on one side and an electrically insulating property on the other side like a liquid crystal frame.
一方、めっき鋼板に電気絶縁性を付与する方法として
は、塩化ビニル樹脂、ポリエステル樹脂、ポリプロピレ
ン樹脂、およびポリエチレン樹脂などからなるフィルム
をめっき鋼板に被覆する方法がある。これらの樹脂フィ
ルムをめっき鋼板に被覆する際には、180〜250℃に板を
加熱しなければならず、この場合においてもめっき鋼板
の他の片面がめっきを施したままの状態であれば半田性
や耐食性が劣る。On the other hand, as a method of imparting electric insulation to the plated steel sheet, there is a method of coating the plated steel sheet with a film made of vinyl chloride resin, polyester resin, polypropylene resin, polyethylene resin or the like. When coating these resin films on a plated steel sheet, the plate must be heated to 180 to 250 ° C, and in this case also, if the other side of the plated steel sheet is still plated, soldering is performed. Inferior in corrosion resistance and corrosion resistance.
本発明は、めっき鋼板の片面に塩素を含有しないフラ
ックスを使用した場合においても、半田の濡れ性に優
れ、経時しても、あるいは加熱しても半田の濡れ性が劣
化せず、しかも耐食性に優れた皮膜が得られる後処理液
をめっき鋼板の片面に塗布し乾燥し、他の片面に電気絶
縁性を有する樹脂フィルムを被覆してなる後処理板、お
よびその製造方法を提供するものである。The present invention is excellent in solder wettability even when a flux containing no chlorine is used on one surface of a plated steel sheet, and the solder wettability does not deteriorate even after a lapse of time or by heating, and further, in corrosion resistance. To provide a post-treatment plate obtained by applying a post-treatment liquid capable of obtaining an excellent film onto one surface of a plated steel sheet, drying the same, and coating the other surface with a resin film having an electrically insulating property, and a method for producing the same. .
発明の開示
本発明の後処理板は、
酸価が150以下である水系アクリル樹脂を100〜600g/l、
メタホウ酸バリウムを1〜30g/l、水溶化ロジンを1〜1
00g/l、および架橋剤を1〜30g/l含有してなるめっき鋼
板の後処理液を、めっき鋼板の片面に乾燥厚みが0.05〜
2μmとなるように塗布形成し、他の片面に樹脂フィル
ムを被覆してなることを特徴とする。DISCLOSURE OF THE INVENTION The post-treatment plate of the present invention has a water-based acrylic resin having an acid value of 150 or less of 100 to 600 g / l,
1-30 g / l barium metaborate and 1-1 solubilized rosin
00g / l, and a post-treatment solution of a plated steel sheet containing 1 to 30g / l of a crosslinking agent, a dry thickness of 0.05 to 1 on one side of the plated steel sheet.
It is characterized in that it is formed by coating so as to have a thickness of 2 μm, and the other side is covered with a resin film.
本発明の後処理板の製造方法は、
酸価が150以下である水系アクリル樹脂を100〜600g/l、
メタホウ酸バリウムを1〜30g/l、水溶化ロジンを1〜1
00g/l、および架橋剤を1〜30g/l含有してなるめっき鋼
板の後処理液を、めっき鋼板の片面に乾燥厚みが0.05〜
2μmとなるように塗布し、乾燥し、他の面に樹脂フィ
ルムを被覆してなることを特徴とする。The manufacturing method of the post-treatment plate of the present invention is 100-600 g / l of an aqueous acrylic resin having an acid value of 150 or less,
1-30 g / l barium metaborate and 1-1 solubilized rosin
00g / l, and a post-treatment solution of a plated steel sheet containing 1 to 30g / l of a crosslinking agent, a dry thickness of 0.05 to 1 on one side of the plated steel sheet.
It is characterized in that it is applied to have a thickness of 2 μm, dried, and the other surface is coated with a resin film.
発明を実施するための最良の形態
本発明は、めっき鋼板に、酸価が150以下である水系
アクリル樹脂を主成分とする後処理液を、乾燥厚みが0.
05〜2μmになるように塗布し乾燥してなる鋼板の片面
に、電気絶縁性を有する樹脂フィルムを被覆してなる鋼
板、およびその製造方法であり、この後処理を施しため
っき鋼板は、無塩素系フラックスを使用しても半田性に
優れ、経時しても、あるいは加熱しても半田の濡れ性が
劣化せず、また耐食性にも優れる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a plated steel sheet, an acid value is a post-treatment liquid containing a water-based acrylic resin as a main component of 150 or less, a dry thickness of 0.
It is a steel sheet obtained by coating a resin film having an electric insulating property on one side of a steel sheet applied to have a thickness of 05 to 2 μm, and a manufacturing method thereof. Even if a chlorine-based flux is used, the solderability is excellent, the wettability of the solder is not deteriorated even with the passage of time or heating, and the corrosion resistance is also excellent.
以下、本発明をさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail.
水系アクリル樹脂は、カルボン酸を有するアクリル系
モノマーの重合体または共重合体であり、特に水溶液重
合、エマルジョン重合などの重合法を限定するものでは
ない。しかし、水系アクリル樹脂の酸価(樹脂1g中に含
まれる遊離脂肪酸を中和するのに要する水酸化カリウム
のミリグラム数)は、150以下であることが肝要であ
る。本発明者は、図1に示すように、水系アクリル樹脂
の酸価が本発明において特に重要な特性である半田濡れ
性に大きく影響し、酸価が150を越える場合には非常に
半田濡れ性に劣るが、一方150以下の場合は著しく半田
濡れ性が優れることを見いだして本発明に到ったもので
ある。The water-based acrylic resin is a polymer or copolymer of an acrylic monomer having a carboxylic acid, and does not particularly limit a polymerization method such as aqueous solution polymerization or emulsion polymerization. However, it is important that the acid value of the water-based acrylic resin (the number of milligrams of potassium hydroxide required to neutralize the free fatty acid contained in 1 g of the resin) is 150 or less. As shown in FIG. 1, the present inventor has found that the acid value of the water-based acrylic resin has a great influence on the solder wettability, which is a particularly important characteristic in the present invention, and when the acid value exceeds 150, the solder wettability is extremely high. However, on the other hand, when it is 150 or less, the inventors have found that the solder wettability is remarkably excellent, and arrived at the present invention.
耐食性を特に必要とする場合には、アクリル樹脂に防
錆顔料を添加しなければならない。しかし、その場合、
耐食性は向上するが、半田濡れ性が低下する欠点があ
る。本発明者は、アクリル樹脂に水溶性ロジンを添加す
ることにより再び半田濡れ性が向上することを見いだし
た。その際、粘度が高くなるために、アクリル樹脂の添
加量を限定する必要がある。その添加量は、100〜600g/
lであることが好ましい。100g/l未満では半田性向上の
効果がなく、耐食性も低下する。一方、600g/lを越える
と半田性向上の効果が飽和し、水溶化ロジンと混ぜ合わ
せた場合に粘度が高くなり、ゲル化する恐れがあり、好
ましくない。If corrosion resistance is particularly required, a rust preventive pigment must be added to the acrylic resin. But in that case,
Although the corrosion resistance is improved, there is a drawback that the solder wettability is lowered. The present inventor has found that the solder wettability is improved again by adding the water-soluble rosin to the acrylic resin. At that time, since the viscosity becomes high, it is necessary to limit the addition amount of the acrylic resin. The amount added is 100-600 g /
It is preferably l. If it is less than 100 g / l, there is no effect of improving the solderability and the corrosion resistance also decreases. On the other hand, when it exceeds 600 g / l, the effect of improving the solderability is saturated, and when mixed with water-soluble rosin, the viscosity becomes high and gelation may occur, which is not preferable.
防錆顔料は、クロム酸アンモニウム、クロム酸ナトリ
ウム、メタホウ酸バリウム、重クロム酸アンモニウム、
重クロム酸ナトリウム、重クロム酸カリウムなどいずれ
でもよいが、アクリル樹脂との相溶性、および安定性か
ら、好ましくは、クロム酸アンモニウム、クロム酸ナト
リウム、メタホウ酸バリウムのいずれかであることが好
ましい。その添加量は1〜30g/lであることが好まし
い。1g/l未満では耐食性向上の効果がなく、30g/lを越
えると耐食性向上の効果が飽和し、半田性が著しく低下
し、粘度が高くなりゲル化する恐れもある。Anti-rust pigments include ammonium chromate, sodium chromate, barium metaborate, ammonium dichromate,
Although sodium dichromate, potassium dichromate, or the like may be used, it is preferably any of ammonium chromate, sodium chromate, and barium metaborate in view of compatibility with an acrylic resin and stability. The addition amount is preferably 1 to 30 g / l. If it is less than 1 g / l, there is no effect of improving the corrosion resistance, and if it exceeds 30 g / l, the effect of improving the corrosion resistance is saturated, the solderability is remarkably lowered, and the viscosity may be increased to cause gelation.
アクリル樹脂に防錆顔料を加えると半田濡れ性が低下
する。しかし、我々は、水溶化ロジンの添加により半田
濡れ性が格段に向上することを見いだした。水溶化ロジ
ンは、ロジンの主成分であるアビエチン酸分子内のカル
ボン酸基をアミン塩などにより中和し、ロジン石鹸とす
る方法により得られる。その添加量は、1〜100g/lであ
ることが好ましい。1g/l未満では半田性向上の効果がな
く、100g/lを越えると皮膜がべたつき、成膜性や耐食性
も劣る。Addition of anticorrosive pigment to acrylic resin reduces solder wettability. However, we have found that the addition of water-soluble rosin significantly improves solder wettability. The water-solubilized rosin is obtained by a method in which the carboxylic acid group in the abietic acid molecule, which is the main component of rosin, is neutralized with an amine salt or the like to obtain a rosin soap. The added amount is preferably 1 to 100 g / l. If it is less than 1 g / l, there is no effect of improving the solderability, and if it exceeds 100 g / l, the film becomes sticky and the film forming property and corrosion resistance are poor.
さらに、耐溶剤性、および耐指紋性を向上させるため
に、架橋剤を添加してもよい。架橋剤としては、エポキ
シ基、アジリジン基、カルボジイミド基、イソシアネー
ト基、多価水酸基を含む化合物、アミノ樹脂などがあ
り、いずれを用いても差し支えない。その添加量は、1
〜30g/lであることが好ましい。1g/l未満では耐溶剤
性、および耐指紋性の向上の効果がなく、30g/lを越え
ると経時により処理液が凝固する恐れがある。Further, a crosslinking agent may be added to improve solvent resistance and fingerprint resistance. Examples of the cross-linking agent include compounds containing an epoxy group, an aziridine group, a carbodiimide group, an isocyanate group, a polyvalent hydroxyl group, and an amino resin, and any of these may be used. The addition amount is 1
It is preferably ˜30 g / l. If it is less than 1 g / l, the effect of improving solvent resistance and fingerprint resistance is not obtained, and if it exceeds 30 g / l, the treatment liquid may coagulate with time.
後処理液のpHは3〜10の範囲が適当である。3未満の場
合は処理液の安定性が不良であり、10を越えると処理皮
膜の乾燥性が不良となる。The pH of the post-treatment liquid is suitably in the range of 3-10. When it is less than 3, the stability of the treatment liquid is poor, and when it exceeds 10, the drying property of the treatment film is poor.
上記のようにして得られた後処理液を、めっき鋼板の
片面あるいは両面に塗布する。塗布する方法としては、
浸漬法、ロールコート法、カーテンフローコート法、ス
プレーコート法など、特に問われるものではない。しか
し、両面塗布を行う場合、本処理液が水系であることを
活かして、連続めっきラインの後工程において、浸漬・
絞りによる塗布を行う方法が容易で経済的である。The post-treatment liquid obtained as described above is applied to one side or both sides of the plated steel sheet. As a method of applying,
The immersion method, the roll coating method, the curtain flow coating method, the spray coating method and the like are not particularly limited. However, when performing double-sided coating, taking advantage of the fact that this treatment liquid is water-based, the dipping and
The method of applying by squeezing is easy and economical.
後処理液は、乾燥後の膜厚が0.05〜2μmとなるよう
に塗布する。後処理液を塗布しためっき鋼板は、後処理
皮膜を成膜させるために、50〜250℃の温度で加熱、乾
燥し、水分を蒸発させる。乾燥温度は、水分を蒸発させ
るだけであれば50〜150℃で十分であるが、150〜250℃
の高温で乾燥しても特性上何の差し支えもない。しか
し、250℃を越えて乾燥するとアクリル樹脂がモノマー
に分解し始める温度となるため、若干耐食性が劣る。皮
膜の厚みが0.05μm未満では、十分な半田性、耐指紋性
が得られないばかりでなく、耐食性が著しく劣る。2μ
mを越えると特性向上の効果が飽和し、コストメリット
がなくなる。The post-treatment liquid is applied so that the film thickness after drying is 0.05 to 2 μm. The plated steel sheet coated with the post-treatment liquid is heated and dried at a temperature of 50 to 250 ° C. to evaporate the water in order to form a post-treatment film. A drying temperature of 50 to 150 ° C is sufficient if only water is evaporated, but 150 to 250 ° C
Even if it is dried at a high temperature, there is no problem in terms of characteristics. However, when the temperature exceeds 250 ° C and is dried, the temperature becomes a temperature at which the acrylic resin starts to decompose into monomers, and thus the corrosion resistance is slightly deteriorated. When the thickness of the film is less than 0.05 μm, not only sufficient solderability and anti-fingerprint property cannot be obtained, but also the corrosion resistance is significantly deteriorated. 2μ
If it exceeds m, the effect of improving the characteristics is saturated and the cost merit is lost.
めっき鋼板の仕様は特に限定されるものではない。溶
融めっき、または電気めっきなど、いずれの手法を用い
ても十分な効果を有するめっきが得られる。また、銅め
っき、ニッケルめっき、錫めっき、鉛−錫合金めっき、
亜鉛めっき、合金亜鉛めっき、複合亜鉛めっきなど、鋼
板上に施すめっきの種類も用途に応じて選択される。The specifications of the plated steel sheet are not particularly limited. Plating having a sufficient effect can be obtained by using any method such as hot dipping or electroplating. Also, copper plating, nickel plating, tin plating, lead-tin alloy plating,
The type of plating applied on the steel sheet, such as zinc plating, alloy zinc plating, and composite zinc plating, is also selected according to the application.
めっき鋼板の片面に上記の後処理を施し、他の片面に
電気絶縁性を付与するために樹脂フィルムを被覆する場
合、適用する樹脂フィルムとしては、厚み5〜300μm
のポリエステル、塩化ビニル、ポリプロピレン、ポリエ
チレンからなるフィルムが含まれる。特に、ポリエステ
ルフィルムは広範囲の温度で電気絶縁性に優れているた
め特に好ましい。樹脂フィルムの厚みが5μm未満で
は、電気絶縁性の点でほとんど効果が得られず、300μ
mを越えると経済性の点で好ましくない。When one side of the plated steel sheet is subjected to the above-mentioned post-treatment and the other side is covered with a resin film for imparting electric insulation, the resin film to be applied has a thickness of 5 to 300 μm.
Includes films of polyester, vinyl chloride, polypropylene, and polyethylene. In particular, the polyester film is particularly preferable because it has excellent electric insulation over a wide range of temperatures. If the thickness of the resin film is less than 5 μm, almost no effect can be obtained in terms of electrical insulation.
If it exceeds m, it is not preferable in terms of economy.
樹脂フィルムをめっき鋼板に被覆する方法は、公知の
方法を適用すればよく、特に限定されるものではない。
樹脂フィルムは接着剤を介してめっき鋼板のめっき表面
と接着してもよい。例えば、アクリル系樹脂、エポキシ
系樹脂、ナイロン系樹脂、ウレタン系樹脂、ビニル系樹
脂、合成ゴム系樹脂、フェノール系樹脂、オレフィン系
樹脂、またはポリエステル系樹脂の1種または2種以上
含むものでよい。接着剤の厚みは乾燥厚みで0.1〜10μ
mの範囲が好ましい。0.1μm未満では接着力が極度に
低下し、10μmを越えると経済性の点で好ましくない。
接着剤は、溶液状、粉末状、ペースト状、フィルム状の
いずれの形態でもよく、樹脂フィルムに接着剤を塗布し
たものを使用してもよい。The method for coating the resin film on the plated steel sheet may be any known method and is not particularly limited.
The resin film may be bonded to the plated surface of the plated steel sheet via an adhesive. For example, it may contain one or more of acrylic resin, epoxy resin, nylon resin, urethane resin, vinyl resin, synthetic rubber resin, phenol resin, olefin resin, or polyester resin. . The thickness of the adhesive is 0.1-10μ in dry thickness.
A range of m is preferred. If it is less than 0.1 μm, the adhesive strength is extremely lowered, and if it exceeds 10 μm, it is not preferable in terms of economy.
The adhesive may be in any form of solution, powder, paste or film, and a resin film coated with an adhesive may be used.
以下、実施例および比較例にて本発明を具体的に説明
する。Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
実施例および比較例
焼鈍および調質圧延を施した鋼板(板厚0.5mm)をめ
っき原板として、アルカリ脱脂、および硫酸酸洗による
清浄化処理を行った後、電気亜鉛めっき、電気亜鉛合金
めっき、またはニッケルめっきを施した。これらのめっ
き鋼板の両面または片面にロールコート法により表1〜
2に示す後処理液を塗布した後、90℃の温度で乾燥し
た。両面に後処理液を塗布しためっき鋼板の場合はこれ
を供試材とした。片面のみに後処理液を塗布しためっき
鋼板の場合は、さらに板温が200℃になるように加熱
し、他の片面に樹脂フィルムをラミネートし、これを供
試材とした。表1〜3には、試料作成の条件を示し、表
4〜6にはその評価結果を示した。なお、評価は以下の
項目について行った。Examples and Comparative Examples Using a steel plate (plate thickness 0.5 mm) that has been annealed and temper-rolled as a plating base plate, after performing alkali degreasing and cleaning treatment by sulfuric acid pickling, electrolytic zinc plating, electrolytic zinc alloy plating, Alternatively, nickel plating is applied. Both sides or one side of these plated steel sheets are coated by a roll coating method from Table 1
After the post-treatment liquid shown in 2 was applied, it was dried at a temperature of 90 ° C. In the case of a plated steel sheet whose both surfaces were coated with the post-treatment liquid, this was used as the test material. In the case of a plated steel sheet in which the post-treatment liquid was applied to only one surface, it was further heated so that the plate temperature was 200 ° C., and a resin film was laminated on the other surface, which was used as a test material. Tables 1 to 3 show conditions for sample preparation, and Tables 4 to 6 show the evaluation results. The following items were evaluated.
1)半田濡れ性:メニスコグラフ法(MIL−STD−883B)
により、SOLDERCHECKER(MODELSAT−2000、RHESCA製)
を使用し、上記の供試材から切り出した幅10mmのサンプ
ルを、塩素を0.25%含む活性ラテックス(ラピックスR
A、日本半田工業製)、または塩素を含まない弱活性フ
ラックス(ラピックスRMA、日本半田工業製)に浸漬
し、その後230℃に保持した半田浴(JIS Z3282:H60A)
に前記のフラックスを塗布したサンプルを2mm浸漬さ
せ、半田が濡れる長さを測定し、下記に示す基準で半田
濡れ性を評価した。なお、試験は試料作製直後と恒温恒
湿(60℃、95%RH)で500時間経時後の二通りで行っ
た。1) Solder wettability: Meniscograph method (MIL-STD-883B)
SOLDERCHECKER (MODELSAT-2000, made by RHESCA)
A sample with a width of 10 mm cut out from the test material above was used as an active latex containing 0.25% chlorine (LAPIX R
A, manufactured by Nippon Handa Industry Co., Ltd.) or a weakly active flux containing no chlorine (Lapix RMA, manufactured by Nippon Handa Industry Co., Ltd.) and then held at 230 ° C (JIS Z3282: H60A)
The sample coated with the above-mentioned flux was dipped in 2 mm, the length of the solder wetted was measured, and the solder wettability was evaluated according to the following criteria. The test was carried out in two ways, immediately after the preparation of the sample and after constant temperature and humidity (60 ° C., 95% RH) for 500 hours.
◎:3mm以上、
○:2〜3mm、
△:1〜2mm、
×:1mm以下
2)耐食性:JIS Z 2371に準じて塩水噴霧試験を96時間
行い、赤錆の発生程度を肉眼観察し、下記に示す基準で
耐食性を評価した。◎: 3 mm or more, ○: 2 to 3 mm, △: 1 to 2 mm, ×: 1 mm or less 2) Corrosion resistance: A salt spray test was conducted for 96 hours in accordance with JIS Z 2371, and the degree of red rust was visually observed. The corrosion resistance was evaluated according to the criteria shown below.
○:赤錆の発生なし、
△:一部赤錆発生、
×:全面に赤錆発生
3)耐指紋性:JIS K2246に基づいて人工汗(pH:3.3)を
後処理皮膜の表面に押さえつけ、指紋の付着程度を下記
の基準で評価した。また、指紋を付けた後処理板を恒温
恒湿(60℃、RH:95%)で500時間経時させた後の外観を
肉眼観察し、変色の程度を下記の基準で評価した。○: No red rust was generated, △: Partial red rust was generated, ×: Red rust was generated on the entire surface 3) Fingerprint resistance: Based on JIS K2246, artificial sweat (pH: 3.3) was pressed against the surface of the post-treatment film to attach fingerprints. The degree was evaluated according to the following criteria. In addition, the post-treatment plate having a fingerprint was aged for 500 hours at a constant temperature and humidity (60 ° C., RH: 95%), the appearance was visually observed, and the degree of discoloration was evaluated according to the following criteria.
◎:指紋の付着なし、変色なし、
○:わずかに指紋が付着、わずかに変色、
△:かなり指紋が付着、かなり変色、
×:指紋の付着顕著、全面変色
4)樹脂フィルムとの加工密着性片面のみに後処理液を
塗布し、他の片面に樹脂フィルムをラミネートした供試
材については、さらにエリクセン張り出し(Er=6mm)
を行い、樹脂フィルムの加工密着性を下記の基準で評価
した。◎: No fingerprints attached, no discoloration ○: Slight fingerprints attached, slight discoloration △: Significant fingerprints attached, considerable discoloration ×: Significant fingerprint attachments, discoloration on the whole surface 4) Processing adhesion with resin film For the test material in which the post-treatment liquid was applied only on one side and the resin film was laminated on the other side, Erichsen overhang (Er = 6 mm)
Then, the processing adhesion of the resin film was evaluated according to the following criteria.
○:剥離なし、
×:剥離、
表4〜6に示すように、本発明によるものは、半田濡
れ性、および耐食性の項目において良好な性状を示し
た。◯: No peeling, ×: Peeling As shown in Tables 4 to 6, the products according to the present invention showed good properties in terms of solder wettability and corrosion resistance.
一方、比較例のように、本発明の範囲を大きく逸脱し
た場合、いずれかの項目において、性能が劣った。On the other hand, as in Comparative Example, when the range of the present invention was largely deviated, the performance was poor in any of the items.
産業上の利用可能性
本発明の後処理液を塗布しためっき鋼板は、塩素を含
まないフラックスを使用した場合においても半田濡れ性
に優れ、それは経時しても劣ることがなく、また耐食性
にも優れている。 INDUSTRIAL APPLICABILITY The plated steel sheet coated with the post-treatment liquid of the present invention has excellent solder wettability even when a chlorine-free flux is used, and it is not inferior over time and also has corrosion resistance. Are better.
さらに本発明の後処理液をめっき鋼板の片面に塗布
し、他の片面に電気絶縁性を有した樹脂フィルムを被覆
しためっき鋼板は、上記の各種の半田性、および耐食性
に優れるとともに、樹脂フィルムの加工密着性にも優れ
ているために、精密電子機器用途に極めて有利に適用す
ることができる。Furthermore, the post-treatment liquid of the present invention is applied to one side of a plated steel sheet, and the plated steel sheet coated with a resin film having electrical insulation on the other side is excellent in the above various solderability and corrosion resistance, and a resin film. Since it is also excellent in processing adhesion, it can be applied extremely advantageously to precision electronic equipment applications.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−197881(JP,A) 特開 昭61−23767(JP,A) 特開 平9−310060(JP,A) 特公 平6−45902(JP,B2) 特公 平2−48183(JP,B2) (58)調査した分野(Int.Cl.7,DB名) C23C 22/00 C09K 3/00 B05D 3/00,7/14 B23K 1/20 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-197881 (JP, A) JP-A 61-23767 (JP, A) JP-A 9-310060 (JP, A) JP-B 6- 45902 (JP, B2) JP-B 2-48183 (JP, B2) (58) Fields surveyed (Int.Cl. 7 , DB name) C23C 22/00 C09K 3/00 B05D 3 / 00,7 / 14 B23K 1/20
Claims (2)
00〜600g/l、メタホウ酸バリウムを1〜30g/l、水溶化
ロジンを1〜100g/l、および架橋剤を1〜30g/l含有し
てなるめっき鋼板の後処理液を、めっき鋼板の片面に乾
燥厚みが0.05〜2μmとなるように塗布形成し、他の片
面に樹脂フィルムを被覆してなる後処理板。1. A water-based acrylic resin having an acid value of 150 or less
00-600 g / l, barium metaborate 1-30 g / l, water-solubilized rosin 1-100 g / l, and cross-linking agent 1-30 g / l A post-treatment plate which is formed by coating on one side so as to have a dry thickness of 0.05 to 2 μm, and by coating the other side with a resin film.
00〜600g/l、メタホウ酸バリウムを1〜30g/l、水溶化
ロジンを1〜100g/l、および架橋剤を1〜30g/l含有し
てなるめっき鋼板の後処理液を、めっき鋼板の片面に乾
燥厚みが0.05〜2μmとなるように塗布し、乾燥し、他
の面に樹脂フィルムを被覆してなる後処理板の製造方
法。2. A water-based acrylic resin having an acid value of 150 or less
00-600 g / l, barium metaborate 1-30 g / l, water-solubilized rosin 1-100 g / l, and cross-linking agent 1-30 g / l A method for producing a post-treatment plate, which comprises applying to one surface a dry thickness of 0.05 to 2 μm, drying and coating the other surface with a resin film.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26911996 | 1996-09-20 | ||
JP8-269119 | 1996-09-20 | ||
PCT/JP1997/003313 WO1998012362A1 (en) | 1996-09-20 | 1997-09-19 | Post-treating solution of plated steel sheet having improved solderability, post-treated plate and method of production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3502393B2 true JP3502393B2 (en) | 2004-03-02 |
Family
ID=17467953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51451998A Expired - Fee Related JP3502393B2 (en) | 1996-09-20 | 1997-09-19 | Post-processing plate and method of manufacturing the same |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP3502393B2 (en) |
AU (1) | AU4319097A (en) |
WO (1) | WO1998012362A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3910853B2 (en) * | 2002-01-18 | 2007-04-25 | 東洋鋼鈑株式会社 | Surface-treated steel sheet for electronic parts and manufacturing method thereof |
JP3810742B2 (en) * | 2003-01-17 | 2006-08-16 | 東洋鋼鈑株式会社 | Post-treatment liquid for plated steel sheet, post-treated plated steel sheet using the same, and method for producing the same |
JP3810743B2 (en) * | 2003-01-17 | 2006-08-16 | 東洋鋼鈑株式会社 | Post-treated plated steel sheet |
JP4461296B2 (en) * | 2003-08-06 | 2010-05-12 | 石原薬品株式会社 | Post-treatment method for tin or tin alloy plating surface |
JP5188090B2 (en) * | 2006-12-27 | 2013-04-24 | 朝日化学工業株式会社 | Coating liquid and clear coated steel plate |
CN103409744B (en) * | 2013-07-25 | 2015-04-22 | 鲁东大学 | Water-soluble modified rosin product, sealing agent and application of sealing agent |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197881A (en) * | 1984-03-21 | 1985-10-07 | Daido Kohan Kk | Coated aluminum-zinc alloy plated steel sheet |
JPS6123767A (en) * | 1984-07-11 | 1986-02-01 | Nisshin Steel Co Ltd | High-corrosion resistant surface treated steel sheet |
JPH0723541B2 (en) * | 1984-07-12 | 1995-03-15 | 日新製鋼株式会社 | Highly corrosion resistant surface treated steel sheet |
JPH01290778A (en) * | 1988-05-19 | 1989-11-22 | Toyo Kohan Co Ltd | After-treatment of plated steel sheet |
JPH02179883A (en) * | 1988-12-29 | 1990-07-12 | Nisshin Steel Co Ltd | Method for chromatic plated steel sheet |
JPH04318179A (en) * | 1991-04-18 | 1992-11-09 | Daido Steel Sheet Corp | Production of aluminum-zinc alloy plated steel plate |
-
1997
- 1997-09-19 JP JP51451998A patent/JP3502393B2/en not_active Expired - Fee Related
- 1997-09-19 WO PCT/JP1997/003313 patent/WO1998012362A1/en active Application Filing
- 1997-09-19 AU AU43190/97A patent/AU4319097A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO1998012362A1 (en) | 1998-03-26 |
AU4319097A (en) | 1998-04-14 |
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