JPH0445922A - Weldable damping steel sheet - Google Patents
Weldable damping steel sheetInfo
- Publication number
- JPH0445922A JPH0445922A JP2156227A JP15622790A JPH0445922A JP H0445922 A JPH0445922 A JP H0445922A JP 2156227 A JP2156227 A JP 2156227A JP 15622790 A JP15622790 A JP 15622790A JP H0445922 A JPH0445922 A JP H0445922A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- steel sheet
- chromate
- resin
- weldable
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000013016 damping Methods 0.000 title claims abstract description 29
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000002952 polymeric resin Substances 0.000 claims abstract description 4
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 29
- 230000001070 adhesive effect Effects 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052681 coesite Inorganic materials 0.000 abstract description 4
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 4
- 229910052682 stishovite Inorganic materials 0.000 abstract description 4
- 229910052905 tridymite Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 238000003466 welding Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000008119 colloidal silica Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、溶接可能型制振鋼板に関し、特に、溶接性に
優れ、かつ高い接着強度と耐食性を保存する溶接可能型
制振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 weldable vibration damping steel plate, and particularly to a weldable vibration damping steel plate that has excellent weldability and maintains high adhesive strength and corrosion resistance. It is.
近年、環境騒音に対する意識か高まるに伴い、各種機器
、建造物およびその他部材から発生する騒音の防止か厳
しく要求されるようになり、種々の騒音防止対策か積極
的に進められている。In recent years, as awareness of environmental noise has increased, there has been a strict requirement to prevent noise generated from various equipment, buildings, and other members, and various noise prevention measures are being actively implemented.
このような状況にあって、中間に粘弾性高分子樹脂を介
在させた制振鋼板の優れた制振・防音特性か注目され、
その用途範囲か急速に拡大しつつある。また、周知のよ
うに、通常の制振鋼板ては、中間の樹脂か電気絶縁体で
あるため、スポラ］・溶接などの抵抗溶接かできないの
で、抵抗溶接か必要とされる用途には、中間に介在させ
る樹脂または樹脂フィルムに金属や炭素等の導電材粒子
を分散添加することて、表裏の鋼板の間に導電性を付与
した溶接可能型制振鋼板か用いらねている。Under these circumstances, attention has been focused on the excellent vibration damping and soundproofing properties of vibration damping steel plates with a viscoelastic polymer resin interposed between them.
Its range of applications is rapidly expanding. In addition, as is well known, ordinary vibration-damping steel plates are made of intermediate resin or electrical insulators, and can only be resistance welded, such as spora welding. A weldable damping steel plate is used in which electrical conductivity is imparted between the front and back steel plates by dispersedly adding particles of a conductive material such as metal or carbon to the resin or resin film interposed in the welding plate.
一方、これら制振鋼板には、その成形方法として常用さ
れるプレス加工時に表裏の鋼板に剥離か生じないような
接着強度を保有していることか要求され、また、その使
用時の制振性能および構造強度を維持するために、鋼板
の接着界面部の耐食性も必要とされる。On the other hand, these vibration-damping steel plates are required to have adhesive strength that prevents peeling between the front and back steel plates during press processing, which is commonly used as a forming method, and vibration-damping performance during use. In order to maintain structural strength, corrosion resistance of the adhesive interface of the steel plate is also required.
そして、これら制振鋼板に、高い接着強度と耐食性を付
与するには、表裏の鋼板の樹脂との接着面にクロメート
処理を施すことか育効であることか知られており、この
場合、クロメート付着量は４０ｍｇ／ｍ２前後か最適蚤
とされていた。It is known that in order to impart high adhesive strength and corrosion resistance to these damping steel plates, it is possible to apply chromate treatment to the adhesive surfaces of the front and back steel plates with resin, or to use a growth effect. The adhesion amount was considered to be around 40 mg/m2, or the optimum amount.
しかし、溶接可能型制振鋼板に、高い接着強度と耐食性
を付与せんとして、表裏の鋼板の樹脂との接着面に、従
来最適どされていた４０ｍｇ／ｍ２前後の付着量のクロ
メート処理を施した場合、中間の樹脂の導電性か充分に
良好なものとされていても、その抵抗溶接性か極端に不
安定になって健全な溶接か施し難くなるいう問題か発生
し、更には、クロメ−）・処理液の組成分の如何では、
必要とされる接着強度か得られなくなるという問題点も
派生する。However, in an attempt to impart high adhesive strength and corrosion resistance to weldable damping steel plates, we applied chromate treatment to the bonding surfaces of the front and back steel plates to the resin at a coating weight of around 40 mg/m2, which had been conventionally optimal. In this case, even if the conductivity of the intermediate resin is considered to be sufficiently good, the resistance weldability may become extremely unstable, making it difficult to perform a sound weld. )・Depending on the composition of the processing liquid,
Another problem arises in that the required adhesive strength cannot be obtained.
本発明者等は、かかる従来の問題点を解決すへく鋭意検
討を加えた結果、クロメート処理によるＣｒ付着量を、
従来より低い範囲に抑えることで、耐食性を付与してな
お良好な導電性を保有することかてき、また、クロメー
ト皮膜中にＳｉＬをある範囲内に含有させるとき、高い
接着強度か得られるとの知見を得て、本発明をなしたも
のである。As a result of intensive studies to solve these conventional problems, the present inventors have determined that the amount of Cr deposited by chromate treatment can be reduced by
By suppressing SiL to a lower range than before, it is possible to impart corrosion resistance and still maintain good conductivity, and it is also said that when SiL is contained within a certain range in the chromate film, high adhesive strength can be obtained. The present invention was created based on this knowledge.
すなわち、本発明は、安定した溶接性を有してなお、高
い接着強度と耐食性を保有する溶接可能型制振鋼板の提
供を目的とするものである。That is, an object of the present invention is to provide a weldable damping steel plate that has stable weldability and also has high adhesive strength and corrosion resistance.
一ヒ記目的を達成するために、本発明は以下の構成とさ
れている。すなわち、本発明に係る溶接可能型制振鋼板
は、二枚の鋼板の間に導電材粒子を分散添加した粘弾性
高分子樹脂を介在させてなる溶接可能型制振鋼板におい
て、前記鋼板の樹脂との接着面に、Ｃｒ付着量か５〜１
０ｍｇ／ｍ’ とされ、かつ、そのＣｒ量に対して０．
１〜２０倍のＳｉｎ、を含有してなるクロメート被膜を
有するものである。In order to achieve the above object, the present invention has the following configuration. That is, the weldable vibration-damping steel plate according to the present invention is a weldable vibration-damping steel plate in which a viscoelastic polymer resin containing conductive material particles is interposed between two steel plates. The amount of Cr deposited on the adhesive surface is 5 to 1
0mg/m' and 0.0mg/m' with respect to the Cr amount.
It has a chromate coating containing 1 to 20 times as much Sin.
クロメート被膜中のＣｒは、鋼板面に防錆皮膜を生成し
て耐食性を高める反面、それ１目１よ電気絶縁体である
ため、その付着量の増加に伴いクロメート被膜か導電性
を低下させる。Cr in the chromate film forms an anti-corrosion film on the surface of the steel sheet and increases corrosion resistance, but on the other hand, since it is primarily an electrical insulator, as the amount of Cr deposited increases, the conductivity of the chromate film decreases.
本発明においては、クロメート被膜のＣｒ付着量を５〜
１．Ｏｍｇ／ｍ２ど、従来より低い範囲に抑えるのて、
鋼板面に耐食性を付与してなお、クロメート被膜に良好
な導電性を保有させることかできる。In the present invention, the amount of Cr attached to the chromate film is 5 to 5.
1. By keeping it within a lower range than before, such as Omg/m2,
It is possible to impart corrosion resistance to the steel plate surface and still have good electrical conductivity in the chromate film.
なお、Ｃ「付着量を５〜１０ｍ１／ｍ２の範囲に限定し
た理由は、その付着量か、５ｍｇ／ｍ２未満ては、鋼板
面に防錆皮膜を生成させることかてきず、一方１０ｔＨ
／ｍ２を超えて付着させると、クロメート被膜の電気抵
抗を高めて、安定した溶接を行うに必要な導電性を保有
し得なくなるからである。In addition, the reason why the amount of adhesion was limited to the range of 5 to 10 m1/m2 is that less than 5 mg/m2 cannot form a rust preventive film on the steel plate surface, whereas 10 tH
This is because if the chromate film is deposited in an amount exceeding /m2, the electrical resistance of the chromate film increases and it becomes unable to maintain the electrical conductivity necessary for stable welding.
一方、クロメート被膜のＣ「は、樹脂との接着性を高め
る作用をらたす、その接着１の増加は接着強度に寄与し
得ないか、クロメート被膜中に含有される５１０２は、
該クロメート被膜面において凹凸を形成し、樹脂との接
着面積を広めると共に、その凹凸のアンカー的効果にて
、該クロメート被膜を介する鋼板と樹脂との接着強度を
高める。On the other hand, C' in the chromate film has the effect of increasing the adhesiveness with the resin, and the increase in adhesion 1 may not contribute to the adhesive strength, or the 5102 contained in the chromate film is
Irregularities are formed on the surface of the chromate coating to widen the adhesive area with the resin, and the anchoring effect of the irregularities increases the adhesive strength between the steel plate and the resin via the chromate coating.
本発明においては、クロメート被膜か、そのＣｒ量に対
して０．１〜２０倍のＳｉＯ２を含有するので、該クロ
メート被膜を介する鋼板と樹脂との接着強度を高める、
二とかてきる。In the present invention, since the chromate coating contains SiO2 in an amount of 0.1 to 20 times the amount of Cr, the adhesive strength between the steel plate and the resin via the chromate coating is increased.
There will be two.
なお、５ｉｎ２を含有をＣｒ量に対して０．１〜２０倍
の範囲に限定した理由は、ＣｒＪｌに対する５１０２の
含有１か、０．１倍未満の微１では、クロメート被膜面
に効果的な凹凸を形成することかできず、接着強度を高
める効果を失するからであり、一方、Ｃｒｆｆ１の２０
倍を超えて増量させても、その増量に対する接着強度の
向」−率か逓減するので実用上その意味を失するたけで
なく、５１０２か半導体であるため、Ｃｒ付着量との加
重効果にてクロメート被膜の電気抵抗を高めて、該クロ
メート被膜の導電性を低下させる要因となるからである
。The reason for limiting the content of 5in2 to the range of 0.1 to 20 times the amount of Cr is that if the content of 5102 is 1 or less than 0.1 times the amount of CrJl, it will not be effective on the chromate coating surface. This is because unevenness cannot be formed and the effect of increasing adhesive strength is lost.
Even if the amount is increased by more than twice as much, the ratio of adhesive strength to the increased amount will gradually decrease, so it not only loses its meaning in practice, but also because 5102 is a semiconductor, due to the weighting effect with the amount of Cr attached. This is because it increases the electrical resistance of the chromate film and causes a decrease in the conductivity of the chromate film.
板厚０．４ｍｍの鋼板の片面に、４０重量％の還元クロ
ム酸（Ｃｒ（ｈ濃度−２００ｇｒ／ （２）を７５重１
部、コロイダルシリカ（固形分４０重量％）を３３重量
部、蒸留水を８９２重１部からなるクロメート処理液を
、ロールコート法により塗布した。On one side of a steel plate with a thickness of 0.4 mm, 40% by weight of reduced chromic acid (Cr (h concentration - 200gr/ (2)
A chromate treatment solution consisting of 33 parts by weight of colloidal silica (solid content 40% by weight) and 1 part by weight of 892 parts by weight of distilled water was applied by roll coating.
また、鋼板は二枚をもって対とし、各対の鋼板に対する
クロメート処理液の塗布Ｉは、そのＣ「付着量か０〜５
０ｍｇ／ｍ２となる範囲内にて、それそ相異なるものと
した。In addition, two steel plates are made into a pair, and the amount of chromate treatment liquid applied to each pair of steel plates is 0 to 5.
They were different within the range of 0 mg/m2.
そして、同塗布条件のクロメート処理を施し、そのクロ
メート皮膜を内側にして対向させた対の鋼板の間に、金
属粉を分散添加して導電性を付与した厚さ７０１．ｚｍ
のポリオレフィン系の樹脂フィルムを配し、これらを加
熱圧着することて積層させて、それぞれ異なるクロメー
ト皮膜を有してなる溶接可能型制振鋼板とした。なお、
その積層条件としては、当該樹脂の接着に最適とされる
１４５℃の仮接着温度と２５０°Ｃの本接着温度とをも
って圧着させた。また、Ｃｒ付着量がｏｍＲ／ｍ２のも
のとして、クロノート処理を施さない対の鋼板を同様に
積層させた溶接可能型制振鋼板も準備した。Then, chromate treatment was applied under the same coating conditions, and metal powder was dispersed between a pair of steel plates facing each other with the chromate film on the inside to give conductivity. zm
A polyolefin-based resin film was arranged, and these were laminated by heat-pressing to form weldable vibration-damping steel plates each having a different chromate coating. In addition,
The lamination conditions were a temporary bonding temperature of 145° C. and a main bonding temperature of 250° C., which are optimal for bonding the resin. In addition, a weldable damping steel plate was also prepared in which a pair of steel plates not subjected to Chronaut treatment were laminated in the same manner, and the amount of Cr deposited was omR/m2.
そして、これら溶接可能型制振鋼板について、そのクロ
メート皮膜のＣ「付着量と、スポット溶接性および接着
強度との関係を調へた。なお、溶接性は、電流８．５Ｋ
Ａ、加圧力２００ｋｇｆ 、通電時間を１２ザイクルと
する定電流スポット溶接における不良発生率て評価し、
接着強度は、剪断引張強度で評価するものとした。For these weldable damping steel plates, we investigated the relationship between the amount of chromate film deposited, spot weldability, and adhesive strength.
A. Evaluate the failure rate in constant current spot welding with a pressurizing force of 200 kgf and a current application time of 12 cycles.
Adhesive strength was evaluated by shear tensile strength.
その結果を第１図のグラフに示す。なお、同グラフ中に
○印てプロツトシて示す曲線はスポット溶接における不
良発生率を示し、口印てプロットして示す曲線は剪断引
張強度を示す。The results are shown in the graph of FIG. In the same graph, the curve plotted with a circle indicates the defect incidence rate in spot welding, and the curve plotted with a square indicates the shear tensile strength.
第１図のグラフに示すように、クロメート皮膜のＣｒ付
着量を０〜１０ｍｇ／ｍ２とした例のものでは、良好な
溶接性を得られたか、１０ｍｇ／ｍ２を超えた例のもの
では、Ｃｒ付着漫の増加に伴って溶接性か悪化し、安定
した溶接を施すことか困難になった。As shown in the graph in Figure 1, good weldability was obtained with the chromate film with a Cr deposition amount of 0 to 10 mg/m2, whereas with the chromate film with a Cr deposition amount of 0 to 10 mg/m2, good weldability was obtained. As the amount of adhesion increased, weldability deteriorated, making it difficult to perform stable welding.
一方、剪断引張強度は、クロメート処理を施さずＣｒ付
着量をＯｍｇ／ｍ’ とした例のもの以外は、はぼ同し
ｌくルの値を示し、これら溶接可能型制振鋼板の接着強
度は、Ｃｒ付着量てはなく、他の要因、特には、コロイ
ダルシリカとして添加された５１０２に影響されている
ことか確認された。On the other hand, the shear tensile strength of these weldable vibration-damping steel plates is approximately the same, except for the examples in which chromate treatment was not performed and the amount of Cr deposited was Omg/m'. It was confirmed that this was not influenced by the amount of Cr attached, but by other factors, especially 5102 added as colloidal silica.
次いで、そのクロメート皮膜のＣｒ （”ｌ’ Ｆｆ量
と、耐食性との関係を調へた。なお、耐食性は、塩水噴
霧試験による試験片端部の発錆状況で評価するものとし
た。その結果を第２図のグラフに示す。Next, we investigated the relationship between the amount of Cr ("l' Ff) in the chromate film and corrosion resistance. Corrosion resistance was evaluated by the state of rust on the edge of the test piece by a salt spray test. The results were This is shown in the graph of FIG.
第２図のグラフに示すように、クロメート処理を施さす
Ｃｒ付着量をＯｍｇ／ｍ２ とした例のものは、短時間
（約２４時間）て試験片端に発錆か認められたか、５〜
１．ｏｍｇ／ｍ”どした例のものは、それ以上の例のも
のど大差ない耐食性を示し、本発明に係るＣｒ付着量の
限定範囲の有効性が確認てきた。As shown in the graph in Figure 2, for the example in which the chromate treatment was applied with a Cr adhesion amount of Omg/m2, rust was observed at the edge of the test piece after a short period of time (approximately 24 hours).
1. omg/m'' exhibited corrosion resistance that was not much different from that of the larger examples, confirming the effectiveness of the limited range of Cr deposition amount according to the present invention.
次いて、これら溶接可能型制振鋼板の接着強度に対する
ＳｉＯ２の影響を確認するために、上記の剪断引張試に
より露呈されたクロメート皮膜の性状を調査したたとこ
ろ、５１０２は均等に分散して、クロメート皮膜面に凹
凸を形成し、該クロメート皮膜と樹脂との接着面積を高
めると共に、樹脂に対して一種のアンカー的効果を有し
て、該クロメ−］・皮膜と樹脂との接着を強固なものと
していることか判明した。Next, in order to confirm the influence of SiO2 on the adhesive strength of these weldable damping steel plates, we investigated the properties of the chromate film exposed by the above shear tensile test, and found that 5102 was evenly dispersed. It forms irregularities on the surface of the chromate film to increase the adhesion area between the chromate film and the resin, and also has a kind of anchoring effect on the resin to strengthen the adhesion between the chromate film and the resin. It turned out that he was doing something.
そこで、その効果の及ぶ範囲を確認するため、前述した
クロメ−Ｉ・処理液中のコロイダルシリカの添加量を、
Ｃｒ量との対比において種々に変化させ、そのＣｒｉに
対するＳｉＯ□の含有量の異なるクロメート皮膜を存す
る溶接可能型制振鋼板を、前述と同様にして準備し、こ
れらの溶接可能型制振鋼板について、そのクロメート皮
膜中の８１０２の含有量と、接着強度およびスポット溶
接性との関係を前述と同様の評価方法にて調査した。Therefore, in order to confirm the range of the effect, the amount of colloidal silica added in the above-mentioned Kurome-I treatment solution was
Weldable vibration-damping steel plates having chromate films with varying amounts of SiO□ relative to Cr were prepared in the same manner as described above, and these weldable vibration-damping steel plates were prepared in the same manner as described above. The relationship between the content of 8102 in the chromate film, adhesive strength, and spot weldability was investigated using the same evaluation method as described above.
その結果を要約して説明すると、■ＳｉＯ□含套量を、
Ｃｒ量の０．１倍未満とした例のものは、接着強度の向
上は認められなかった。■０，１倍以」二とした例のも
のは全て高い接着強度を示したか、２０倍以」二では、
その増量に対する接着強度の向」−率は逓減する傾向を
示した。■一方、その増量に伴い、Ｃｒ付着１との相関
において、溶接性か低下して行く傾向か認められた。To summarize and explain the results, ■SiO□ content is
In the examples in which the amount of Cr was less than 0.1 times, no improvement in adhesive strength was observed. ■ All the examples with 0.1 times or more showed high adhesive strength, or 20 times or more with 2.
The adhesive strength ratio showed a tendency to gradually decrease as the amount increased. (2) On the other hand, as the amount increased, there was a tendency for weldability to decrease in correlation with Cr adhesion 1.
そして、これら結果より、Ｃｒｉに対するＳ】０２の含
有ｌか０．１倍未満の微ｌては、クロメート被膜面に接
着強度を高めるに効果的な凹凸を形成できず、一方、Ｃ
ｒ量の２０倍を超えて増量させても、その増量に対する
接着強度の向上率か逓減するので実用上その意味かなく
なり、加えて、５１０２か半導体であるため、その含有
量を増加させると、Ｃｒ付着量との加重効果にてクロメ
ート被膜の電気抵抗を高めて、該クロメート被膜の導電
性を低下させる要因となるので、Ｃｒｆｌに対する５ｉ
ｆｔの含有量は０．１〜２０倍の範囲内（望ましくは１
〜１０倍の範囲内）とすべきであることか判明した。ま
た、このことより、本発明に係るＣｒ量に対する５ｉｏ
２ｃｒ付着量の限定範囲の有効性か確認できた。From these results, it is clear that if the content of S]02 is less than 0.1 times that of Cri, it will not be possible to form irregularities on the chromate film surface that are effective for increasing the adhesive strength;
Even if the amount is increased by more than 20 times the amount of r, the improvement rate of adhesive strength will gradually decrease with respect to the increase, so it is practically meaningless.In addition, since 5102 is a semiconductor, if its content is increased, 5i for Crfl increases the electrical resistance of the chromate film due to the weighting effect with the amount of Cr attached, and becomes a factor that reduces the conductivity of the chromate film.
ft content is within the range of 0.1 to 20 times (preferably 1
It was found that it should be within the range of ~10 times. Moreover, from this, 5io with respect to the amount of Cr according to the present invention
We were able to confirm the effectiveness of the limited range of 2cr adhesion.
なお、上記の実施例においては、クロメート被膜の総Ｃ
ｒ付着量と、そのＣｒｔに対するＳｉＯ□の含有量の効
果について述へたか、該クロメート被膜の総Ｃｒ付着量
に対するＣｒ”’の含有量は、１０〜９０％の範囲内と
されことか望ましい、これは、Ｃｒ ＋ Ｉはクロメー
ト処理液の安定性を左右し、１０％未満ては、クロメー
ト処理液か潮解性を帯びて接着強度を低下させ、９０％
を超えると処理液中で沈澱して、クロメート処理液の安
定性を損ない、結果として、該クロメート処理液による
クロメート被膜を不安定なものとするからである。更に
また、そのクロメート被膜か、フッ素化合物、Ｃ０１Ｎ
ｉ、 Ｆｅ、 ２ｎ等を微量に含有してなるものであっ
ても、本発明の効果を妨げるものではない。In addition, in the above example, the total C of the chromate film
As mentioned above, the effect of the content of SiO This is because Cr + I affects the stability of the chromate treatment solution, and if it is less than 10%, the chromate treatment solution becomes deliquescent and reduces the adhesive strength, and if it is less than 10%
This is because if it exceeds this amount, it will precipitate in the treatment solution, impairing the stability of the chromate treatment solution, and as a result, the chromate coating formed by the chromate treatment solution will become unstable. Furthermore, the chromate coating, fluorine compound, C01N
Even if it contains trace amounts of i, Fe, 2n, etc., it does not impede the effects of the present invention.
以上に述へたように、本発明に係る溶接可能型制振鋼板
は、安定した溶接性を有してなお、高い接着強度と耐食
性を保有するので、制振部材としての利用範囲をより拡
大することかでき、もって、環境騒音等の粛清化対策に
大きく寄与し得る。As mentioned above, the weldable vibration damping steel plate according to the present invention has stable weldability and also has high adhesive strength and corrosion resistance, so it can be used more widely as a vibration damping member. This can greatly contribute to measures to eliminate environmental noise, etc.
第１図は本発明の実施例の溶接可能型制振鋼板に関わる
クロメート皮膜のＣｒ付着量と、スポット溶接性および
接着強度との関係を示すグラフ、第２図は本発明の実施
例の溶接可能型制振鋼板に関わるクロメート皮膜のＣｒ
付着量と耐食性との関係を示すグラフである。
特許出願人 株式会社 神戸製鋼折
代 理 人 弁理士 金欠 章−
均＠陣遮ｅ諏ザ★（メ）
ｃｏ Ｏ（’Ｊ寸
［Ｆ］ 〜 亡Ｎ Ｎ
塩ば佃塘巨午Figure 1 is a graph showing the relationship between the amount of Cr deposited in the chromate film and spot weldability and adhesive strength of the weldable damping steel plate of the example of the present invention, and Figure 2 is the welding of the example of the present invention. Cr in the chromate film related to the damping steel plate
It is a graph showing the relationship between adhesion amount and corrosion resistance. Patent Applicant Kobe Steel Co., Ltd. Oriyo Agent Patent Attorney Akira Kanekichi
Claims (1)
子樹脂を介在させてなる溶接可能型制振鋼板において、
前記鋼板の樹脂との接着面に、Ｃｒ付着量が５〜１０ｍ
ｇ／ｍ＾２とされ、かつ、そのＣｒ量に対して０．１〜
２０倍のＳｉＯ＿２を含有してなるクロメート被膜を有
することを特徴とする溶接可能型制振鋼板。In a weldable vibration-damping steel plate in which a viscoelastic polymer resin containing conductive material particles is interposed between two steel plates,
The amount of Cr deposited on the adhesive surface of the steel plate with the resin is 5 to 10 m.
g/m^2, and from 0.1 to the amount of Cr
A weldable vibration damping steel plate characterized by having a chromate coating containing 20 times as much SiO_2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2156227A JPH0445922A (en) | 1990-06-14 | 1990-06-14 | Weldable damping steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2156227A JPH0445922A (en) | 1990-06-14 | 1990-06-14 | Weldable damping steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0445922A true JPH0445922A (en) | 1992-02-14 |
Family
ID=15623141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2156227A Pending JPH0445922A (en) | 1990-06-14 | 1990-06-14 | Weldable damping steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445922A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158342A (en) * | 1992-11-17 | 1994-06-07 | Sumitomo Metal Ind Ltd | Vibration damping steel plate |
| US5490044A (en) * | 1994-01-13 | 1996-02-06 | Rkc Instrument Inc. | Electric terminal assembly |
| JP2010027410A (en) * | 2008-07-21 | 2010-02-04 | Shang Tsai Wu | Structure of terminal stand |
| US7833630B2 (en) * | 2004-12-20 | 2010-11-16 | Gm Global Technology Operations, Inc. | Weldable metal composites and methods |
-
1990
- 1990-06-14 JP JP2156227A patent/JPH0445922A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158342A (en) * | 1992-11-17 | 1994-06-07 | Sumitomo Metal Ind Ltd | Vibration damping steel plate |
| US5490044A (en) * | 1994-01-13 | 1996-02-06 | Rkc Instrument Inc. | Electric terminal assembly |
| US7833630B2 (en) * | 2004-12-20 | 2010-11-16 | Gm Global Technology Operations, Inc. | Weldable metal composites and methods |
| JP2010027410A (en) * | 2008-07-21 | 2010-02-04 | Shang Tsai Wu | Structure of terminal stand |
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