JPH0351791B2 - - Google Patents
Info
- Publication number
- JPH0351791B2 JPH0351791B2 JP60140432A JP14043285A JPH0351791B2 JP H0351791 B2 JPH0351791 B2 JP H0351791B2 JP 60140432 A JP60140432 A JP 60140432A JP 14043285 A JP14043285 A JP 14043285A JP H0351791 B2 JPH0351791 B2 JP H0351791B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- damping composite
- composite steel
- steel plate
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 56
- 239000010959 steel Substances 0.000 claims description 56
- 238000013016 damping Methods 0.000 claims description 34
- 239000002131 composite material Substances 0.000 claims description 28
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- 229910019142 PO4 Inorganic materials 0.000 claims description 23
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 23
- 239000010452 phosphate Substances 0.000 claims description 23
- 239000003190 viscoelastic substance Substances 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 229940006076 viscoelastic substance Drugs 0.000 claims description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- 229960001484 edetic acid Drugs 0.000 description 4
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000008397 galvanized steel Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Chemical Treatment Of Metals (AREA)
Description
〔産業状の利用分野〕
本発明は防錆性、プレス加工性がすぐれ、塗料
の高温焼付時にふくれが生じない制振複合鋼板に
関するものである。
〔従来の技術〕
各種機械器具、車輌、船舶等の構造部材あるい
はその他の部材から発生する振動を防止するには
その設置基礎を修正したり、部材自体を厚くした
り、振動減衰材を貼布したり、あるいは振動減衰
機能を発揮するポリマー溶液を吹きつけ又は塗布
するなどの対策がとられている。特に近年都市に
おける車輌等の発生する騒音規制が強化される中
で、その対策として車輌等の部材を制振機能を有
する素材より形成する傾向にあり、こうした素材
として振動減衰機能を有する物質を中間層に配し
た複合材が開発されている。特開昭59−57743、
特開昭59−146840）
この種の制振複合鋼板は例えば厚さが夫々1.0
mm程度までの２枚の鋼板間に、例えば厚さ0.1〜
0.6mm程度のプラスチツクなどの粘弾性物質層を
ラミネートしたものであつて、このような構成を
とることによつてこれに加わる振動エネルギーを
粘弾性物質層の塑性変形によつて急速に熱エネル
ギーに変換して振動を効果的に減衰させる機能を
発揮させようとするものである。
ちなみに制振複合鋼板の振動減衰機能を残響時
間で比較すると、通常の鋼板の振動が減衰してあ
る一定値に達するのに500秒要するのに対し、制
振複合鋼板では１秒程度である。
〔発明が解決しようとする問題点〕
ところでこの制振複合鋼板は単に板材としてそ
のをまま使用する限りにおいては、別に不都合は
なく優れた効果を発揮するが、この鋼板をプレス
加工して所望の形状を与えたり、あるいはプレス
加工した後で表面を塗装焼付けしたりすると、
種々のトラブルを発生する。
以下制振複合鋼板を、プレス加工品に成形する
例について述べる。先づ制振複合鋼板に使用され
る原鋼板に当初表面未処理の鋼板を利用した結
果、実用段階で鋼板と粘弾性物質との接着面に錆
が発生し、接着面が剥離する恐れが生じた。
これを避けるため原鋼板として、電気亜鉛メツ
キを施した上塗装の密着性を向上せしめるため、
りん酸塩処理した鋼板を使用することにした。こ
の結果鋼板と粘弾性物質層との接着面における発
錆が防止できた。しかし、プレス加工後の塗装焼
付け工程（180℃、20分間）において、フクレ現
象が生じ接着面の剥離を発生した。
この原因は上記のような鋼板のりん酸塩処理に
あると考えられたので、原鋼板の表面処理を電気
亜鉛メツキのみに止め、りん酸塩処理は施さない
鋼板を原鋼板として使用することにした。しかし
この結果プレス加工においてワレ発生が多くなり
その率が50％を越えるとともに、使用する粘弾性
物質が例えばエチレンアクリル酸共重合体系樹脂
のようなカルボキシル基を有している場合は、プ
レス加工後の焼付け塗装工程において接着面に上
記と同じようなフクレ現象を発生した。
以上のような一連の実験の結果、プレス加工品
の素材として従来の制振複合鋼板を使用すること
については、上記のような幾つかの問題点のある
ことが明らかとなつてきた。
本発明は従来の制振複合鋼板の上記のような問
題点を解決するためになされたもので、プレス加
工品のような高度な加工製品にも使用しうる制振
複合鋼板を提供しようとするものである。
〔問題点を解決するための手段〕
上記一連の実験結果を踏まえ種々考察の結果、
先づエチレンアクリル酸共重合体系樹脂のような
カルボキシル基を有する粘弾性物質との接着面に
発生するフクレ現象に関しては、鋼板の亜鉛メツ
キ層の表面の酸化亜鉛が粘弾性物質中のカルボキ
シル基と反応して水を発生し、これが加熱されて
水蒸気となり接着面にフクレを発生するものとの
知見を得た。
よつて制振複合鋼板の製造において、使用する
鋼板の粘弾性物質層に接する亜鉛メツキ層表面の
酸化亜鉛を除去し、加工工程中の加熱によつてガ
ス体を発生せしめないようにした。
次にプレス加工工程におけるワレの発生につい
ては、前記実験の結果から、りん酸塩処理を省い
たため、りん酸塩皮膜の有する潤滑性が失なわれ
たことによるとの考察の許に、改めてりん酸塩皮
膜目付量とプレス成形性との関係をみるための試
験を行つた。
すなわち0.7mmの鋼板の両面に電気亜鉛メツキ
を施した上、更に片面のみ目付量を０〜10.2ｇ／
m2まで変化させてりん酸塩処理を行い、電気亜鉛
メツキ層の側を粘弾性物質層と接着させて前記の
ような制振複合鋼板を製造し、該複合鋼板から上
記りん酸塩皮膜目付量に応じた円板状の試験用の
ブランクを形成した。このブランクを第１図に示
すプレス試験機にかけ、りん酸塩皮膜目付量と加
工性との関係をみるものである。なお第１図にお
いて１は100mmψのポンチ、２は103.5mmψのダイ
ス、３は試験用ブランク、R1はポンチ１の周縁
部の円弧部半径で５mm、R2はダイス２の同半径
で2.5mm、しわ押え力Ｐは35トンである。
上記プレス条件で試験用ブランク３の直径を少
しづつ大きくし、破断することなく成形しうる最
大ブランク径も求める。最大ブランク径の大きい
程成形性が優れていると判定されるのである。第
２図はりん酸塩皮膜目付量と成形可能最大ブラン
ク径との関係を示す線図である。図に示すように
りん酸塩皮膜目付量が0.2ｇ／m2以下ではりん酸
塩処理を施さないものと変りなく、0.2ｇ／m2〜
0.5ｇ／m2ではりん酸塩皮膜の効果は多少認めら
れるものの、バラツキが多い。しかし0.5ｇ／m2
以上では、りん酸塩処理を施さない場合に比べ成
形性が大きく向上していることが伴る。通常、り
ん酸塩皮膜の目付量は１ｇ／m2〜５ｇ／m2が多用
されている。
以上の実験による知見をもとにして、本発明者
達は鋭意検討を行ない本発明に到つた。即ち本発
明は
(1) ２枚の鋼板の間に粘弾性物質層を挟持し、該
鋼板の粘弾性物質に接しない面はりん酸塩皮膜
を有し、接する面はガス体を発生しない防錆皮
膜を有する制振複合鋼板。
(2) 上記防錆皮膜が酸化亜鉛を含まない亜鉛皮膜
である制振複合鋼板。である。
〔作用〕
本発明による制振複合鋼板は、外面はりん酸塩
処理皮膜を有するとともに、粘弾性物質層と接す
る面はガス体を発生しない防錆皮膜を有してお
り、特に亜鉛メツキ鋼板の場合には、酸化亜鉛を
除去した亜鉛メツキ皮膜を有しているので、制振
性、防食性およびプレス加工性に優れるととも
に、塗料の高温焼付けなどの加熱によつてもフク
レの発生しない優れた性能を有している。
〔発明の実施例〕
両面に４ｇ／m2の電気亜鉛メツキを施した上、
片面にはさらに目付量２ｇ／m2のりん酸塩処理を
行なつた0.7mm厚さの冷延鋼板を、ラミネート工
程前の脱脂工程において脱脂液中にEDTA（エチ
レン・ジ・アミン４酢酸）を混入し、該EDTA
を亜鉛メツキ層表面の酸化亜鉛と反応せしめて可
溶性の錯塩とし、脱脂液中に溶出せしめて酸化亜
鉛を除去した後、該２枚の鋼板の間にエチレンア
クリル酸共重合体系樹脂を挟持して本発明の制振
複合鋼板を製造する。
上記制振複合鋼板を使用してオイルパンを成形
した結果、第１表に示すように従来の制振複合鋼
板を使用した際問題となつていた鋼板と粘弾性
物質層との接着面における防錆、プレス加工時
のワレ、及びプレス加工後の塗装焼付時のフク
レ現象等すべての問題点が解決され満足すべきオ
イルパンを製造することができた。
これは電気亜鉛メツキにより前記鋼板の樹脂と
の接着面に防錆処理を施したことによる発錆の防
止、制振複合鋼板の表面をりん酸塩処理したこと
によるプレス加工性の向上、さらに亜鉛メツキ層
表面の酸化亜鉛を除去したことによる接着面のフ
クレ防止などの対策によるものと思われる。
なお本発明における防錆皮膜を有する鋼板は、
電気亜鉛メツキ鋼板、溶融亜鉛メツキ鋼板等を指
すものである。この場合亜鉛メツキ鋼板は
EDTA等の使用によつて、酸化亜鉛を除去した
皮膜か、又は研磨などの機械的方法によつて酸化
亜鉛を除去した皮膜であることが必要である。さ
らに酸化亜鉛がほとんど存在しない防錆皮膜をも
つ鋼板例えば合金化処理鋼板、亜鉛系メツキ鋼板
（亜鉛鉄等）を利用することによつても、高温焼
付け時のフクレを防止することができる。又鋼板
の厚さも0.2mmから1.6mmまでのものが利用され
る。
粘弾性物質は、エチレンアクリル酸共重合体系
樹脂、酢酸ビニル系樹脂等のカルボキシル基を有
する振動減衰物質を使用することができる。その
厚さも0.03mmから0.6mmまで使用可能である。
〔発明の効果〕
本発明は制振複合鋼板の製造において、両面に
電気亜鉛メツキを施した上、さらに片面にりん酸
塩処理を行ない、他面の亜鉛メツキ層表面の酸化
亜鉛を除去した鋼板を使用したので、本発明に係
る制振複合鋼板は第１表に示すように防食性、加
工性に優れ、加工成形後の塗装焼付にもフクレを
発生せず、さらに制振性（損失係数）ηmaxが0.1
以上を確保しうるという優れた性能を有してい
る。
[Industrial Field of Application] The present invention relates to a vibration-damping composite steel plate that has excellent rust prevention properties and press workability, and does not blister when a paint is baked at a high temperature. [Prior art] To prevent vibrations generated from structural members or other members of various machinery, vehicles, ships, etc., it is necessary to modify the installation foundation, thicken the member itself, or apply vibration damping material. Countermeasures have been taken, such as spraying or applying a polymer solution that exhibits a vibration damping function. Particularly in recent years, regulations on noise generated by vehicles, etc. in cities have been strengthened, and as a countermeasure, there has been a trend to make vehicle components from materials that have a vibration damping function. Composite materials arranged in layers have been developed. Japanese Patent Publication No. 59-57743,
JP 59-146840) This type of damping composite steel plate has a thickness of, for example, 1.0 mm.
For example, between two steel plates up to about 0.1 mm in thickness,
It is made by laminating a layer of viscoelastic material such as plastic with a thickness of about 0.6 mm, and by adopting this structure, the vibration energy applied to it can be rapidly converted into thermal energy through plastic deformation of the viscoelastic material layer. The aim is to achieve the function of converting and effectively damping vibrations. By the way, when comparing the vibration damping function of vibration-damping composite steel plates in terms of reverberation time, it takes 500 seconds for the vibrations of ordinary steel plates to attenuate and reach a certain value, whereas it takes about 1 second for vibration-damping composite steel plates. [Problems to be solved by the invention] By the way, as long as this vibration-damping composite steel plate is simply used as a plate material, it exhibits excellent effects without any particular inconvenience. By giving it a shape or by painting and baking the surface after pressing,
This causes various troubles. An example of forming a damping composite steel plate into a pressed product will be described below. First, as a result of initially using untreated steel sheets as the raw steel sheets used in damping composite steel sheets, there was a risk that rust would develop on the adhesive surface between the steel sheet and the viscoelastic substance during the practical use stage, causing the adhesive surface to peel off. Ta. To avoid this, the raw steel sheet is electrogalvanized to improve the adhesion of the top coat.
I decided to use phosphate-treated steel plate. As a result, it was possible to prevent rust from forming on the adhesive surface between the steel plate and the viscoelastic material layer. However, during the paint baking process (180°C, 20 minutes) after press working, blistering occurred and the adhesive surface peeled off. It was thought that the cause of this was due to the phosphate treatment of the steel sheet as mentioned above, so we decided to limit the surface treatment of the raw steel sheet to electrogalvanizing only and use a steel sheet without phosphate treatment as the raw steel sheet. did. However, as a result of this, cracking occurs frequently during press processing, and the cracking rate exceeds 50%, and if the viscoelastic material used has carboxyl groups, such as ethylene acrylic acid copolymer resin, after press processing During the baking painting process, the same blistering phenomenon as above occurred on the adhesive surface. As a result of the series of experiments described above, it has become clear that there are several problems as described above when using conventional damping composite steel plates as materials for press-formed products. The present invention was made to solve the above-mentioned problems of conventional vibration-damping composite steel plates, and aims to provide a vibration-damping composite steel plate that can be used for highly processed products such as pressed products. It is something. [Means for solving the problem] As a result of various considerations based on the above series of experimental results,
First, regarding the blistering phenomenon that occurs on the adhesive surface with viscoelastic substances having carboxyl groups such as ethylene acrylic acid copolymer resins, the zinc oxide on the surface of the galvanized layer of the steel sheet interacts with the carboxyl groups in the viscoelastic substance. It was discovered that the reaction generates water, which is heated and turns into water vapor, causing blisters on the adhesive surface. Therefore, in the production of vibration-damping composite steel sheets, the zinc oxide on the surface of the galvanized layer in contact with the viscoelastic material layer of the steel sheet used was removed to prevent gas from being generated by heating during the processing process. Next, regarding the occurrence of cracks in the press processing process, based on the results of the above experiment, we considered that the lubricity of the phosphate film was lost because the phosphate treatment was omitted. A test was conducted to examine the relationship between the basis weight of the phosphate film and press formability. In other words, electrolytic galvanizing is applied to both sides of a 0.7mm steel plate, and the basis weight is applied to one side from 0 to 10.2g/.
m 2 and then subjected to phosphate treatment, the side of the electrogalvanized layer is adhered to the viscoelastic material layer to produce a damping composite steel sheet as described above, and the composite steel sheet has the above-mentioned phosphate film basis weight. Disk-shaped test blanks were formed according to the amount. This blank was subjected to a press tester shown in FIG. 1 to examine the relationship between the basis weight of the phosphate film and workability. In Figure 1, 1 is a 100mmψ punch, 2 is a 103.5mmψ die, 3 is a test blank, R 1 is the radius of the circular arc at the periphery of punch 1, 5 mm, and R 2 is the same radius of die 2, 2.5 mm. , the wrinkle pressing force P is 35 tons. The diameter of the test blank 3 is gradually increased under the above press conditions, and the maximum blank diameter that can be formed without breaking is also determined. It is determined that the larger the maximum blank diameter, the better the formability. FIG. 2 is a diagram showing the relationship between the basis weight of the phosphate film and the maximum formable blank diameter. As shown in the figure, when the basis weight of the phosphate film is 0.2g/ m2 or less, it is the same as that without phosphate treatment, and from 0.2g/ m2 to
At 0.5 g/m 2 , the effect of the phosphate film can be seen to some extent, but there are many variations. But 0.5g/ m2
In the above case, the moldability is greatly improved compared to the case where phosphate treatment is not performed. Usually, the basis weight of the phosphate film is often 1 g/m 2 to 5 g/m 2 . Based on the findings from the above experiments, the present inventors conducted extensive studies and arrived at the present invention. That is, the present invention provides (1) a viscoelastic substance layer sandwiched between two steel plates, the surface of the steel plate not in contact with the viscoelastic substance has a phosphate coating, and the surface in contact with it has a protective layer that does not generate gas. A vibration-damping composite steel plate with a rust film. (2) A vibration-damping composite steel sheet in which the anti-rust coating is a zinc coating that does not contain zinc oxide. It is. [Function] The vibration-damping composite steel sheet according to the present invention has a phosphate treatment film on the outer surface and a rust-preventing film that does not generate gas on the surface in contact with the viscoelastic material layer, and is particularly suitable for galvanized steel sheets. Since the case has a zinc plating film from which zinc oxide has been removed, it has excellent vibration damping properties, anticorrosion properties, and press workability, and also has excellent properties that do not cause blistering even when heated, such as when baking paint at high temperatures. It has performance. [Embodiment of the invention] After electrolytic galvanizing of 4 g/m 2 was applied to both sides,
On one side, a 0.7 mm thick cold-rolled steel sheet that has been subjected to phosphate treatment with a basis weight of 2 g/m 2 is added to the degreasing solution using EDTA (ethylene diamine tetraacetic acid) in the degreasing process before the laminating process. and the EDTA
After reacting with zinc oxide on the surface of the galvanized layer to form a soluble complex salt and eluting it into a degreasing solution to remove the zinc oxide, an ethylene acrylic acid copolymer resin is sandwiched between the two steel plates. A damping composite steel plate of the present invention is manufactured. As a result of forming an oil pan using the above-mentioned vibration-damping composite steel plate, as shown in Table 1, it is possible to prevent the adhesive surface between the steel plate and the viscoelastic material layer, which was a problem when using the conventional vibration-damping composite steel plate, as shown in Table 1. All problems such as rust, cracking during press working, and blistering during paint baking after press working were solved, and a satisfactory oil pan could be manufactured. This is achieved by electrogalvanizing the surface of the steel sheet that adheres to the resin to prevent rust, and by treating the surface of the vibration damping composite steel sheet with phosphate, which improves press workability. This seems to be due to measures such as preventing blistering of the adhesive surface by removing the zinc oxide on the surface of the plating layer. In addition, the steel plate having the anti-corrosion film in the present invention is
This refers to electrogalvanized steel sheets, hot-dip galvanized steel sheets, etc. In this case, the galvanized steel sheet is
The film must have zinc oxide removed by using EDTA or the like, or the film must have zinc oxide removed by a mechanical method such as polishing. Furthermore, blistering during high-temperature baking can also be prevented by using a steel plate with a rust-preventing film containing almost no zinc oxide, such as an alloyed steel plate or a zinc-plated steel plate (zinc iron, etc.). Also, steel plates with a thickness of 0.2 mm to 1.6 mm are used. As the viscoelastic material, a vibration damping material having a carboxyl group such as an ethylene acrylic acid copolymer resin or a vinyl acetate resin can be used. Its thickness can also be used from 0.03mm to 0.6mm. [Effects of the Invention] In the production of vibration-damping composite steel sheets, the present invention is a steel sheet that is electrolytically galvanized on both sides, further subjected to phosphate treatment on one side, and zinc oxide on the surface of the galvanized layer on the other side is removed. As shown in Table 1, the vibration-damping composite steel sheet according to the present invention has excellent corrosion resistance and workability, does not cause blisters even when painted after processing and forming, and has excellent vibration-damping properties (loss coefficient). ) ηmax is 0.1
It has excellent performance in ensuring the above.
【表】
註(1) プレス加工性 分子：不良個数 分母：全数
註(2) ◎ 特に良 ○ 良 △ やや良 × 不良
[Table] Note (1) Press workability Numerator: Number of defective pieces Denominator: Total number Note (2) ◎ Particularly good ○ Good △ Fairly good × Poor
第１図はプレス試験機の断面図、第２図はりん
酸塩皮膜目付量と成形可能最大ブランク値との関
係を示す線図である。
FIG. 1 is a sectional view of a press testing machine, and FIG. 2 is a diagram showing the relationship between the basis weight of the phosphate film and the maximum moldable blank value.
Claims (1)
弾性物質を挾持してなる制振複合鋼板であつて、
プレス加工工程時または以後加熱工程を有する制
振複合鋼板において、 上記制振複合鋼板の２枚の鋼板の粘弾性物質に
接しない面はりん酸塩皮膜を有し、接する面はカ
ルボキシル基との反応により、上記加熱工程でガ
ス体を発生しない防錆皮膜を有する ことを特徴とする制振複合鋼板。 ２ 上記防錆皮膜が酸化亜鉛を含まない亜鉛メツ
キ皮膜であることを特徴とする特許請求の範囲第
１項記載の制振複合鋼板。[Scope of Claims] 1. A vibration-damping composite steel plate formed by sandwiching a viscoelastic substance having a carboxyl group between two steel plates,
In a vibration-damping composite steel plate that is subjected to a pressing process or a heating process thereafter, the surfaces of the two steel plates of the vibration-damping composite steel plate that are not in contact with the viscoelastic substance have a phosphate film, and the surfaces that are in contact have a phosphate film with a carboxyl group. A vibration-damping composite steel sheet characterized by having a rust-preventing film that does not generate gas in the heating process due to reaction. 2. The vibration-damping composite steel sheet according to claim 1, wherein the anti-rust coating is a galvanized coating that does not contain zinc oxide.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14043285A JPS624878A (en) | 1985-06-28 | 1985-06-28 | Vibration damping composite steel sheet |
| EP19860304738 EP0208443B1 (en) | 1985-06-28 | 1986-06-19 | Vibration-damping composite sheet steel |
| DE8686304738T DE3682714D1 (en) | 1985-06-28 | 1986-06-19 | VIBRATION DAMPED COMPOSITE STEEL SHEET. |
| US07/604,328 US5093204A (en) | 1985-06-28 | 1990-10-26 | Vibration-damping composite sheet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14043285A JPS624878A (en) | 1985-06-28 | 1985-06-28 | Vibration damping composite steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS624878A JPS624878A (en) | 1987-01-10 |
| JPH0351791B2 true JPH0351791B2 (en) | 1991-08-07 |
Family
ID=15268534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14043285A Granted JPS624878A (en) | 1985-06-28 | 1985-06-28 | Vibration damping composite steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS624878A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158342A (en) * | 1992-11-17 | 1994-06-07 | Sumitomo Metal Ind Ltd | Vibration damping steel plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53128687A (en) * | 1977-04-14 | 1978-11-09 | Kobe Steel Ltd | Vibration-damping and sound insulating board having excellent spot welding property |
-
1985
- 1985-06-28 JP JP14043285A patent/JPS624878A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53128687A (en) * | 1977-04-14 | 1978-11-09 | Kobe Steel Ltd | Vibration-damping and sound insulating board having excellent spot welding property |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS624878A (en) | 1987-01-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |