JP2945544B2 - Resin composite metal plate with excellent resistance weldability - Google Patents

Resin composite metal plate with excellent resistance weldability

Info

Publication number
JP2945544B2
JP2945544B2 JP22187692A JP22187692A JP2945544B2 JP 2945544 B2 JP2945544 B2 JP 2945544B2 JP 22187692 A JP22187692 A JP 22187692A JP 22187692 A JP22187692 A JP 22187692A JP 2945544 B2 JP2945544 B2 JP 2945544B2
Authority
JP
Japan
Prior art keywords
welding
metal
resin
metal powder
resin composite
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
Application number
JP22187692A
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Japanese (ja)
Other versions
JPH05345386A (en
Inventor
佐藤始夫
西川廣士
柚鳥善之
清 高野
高田隆英
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP22187692A priority Critical patent/JP2945544B2/en
Publication of JPH05345386A publication Critical patent/JPH05345386A/en
Application granted granted Critical
Publication of JP2945544B2 publication Critical patent/JP2945544B2/en
Anticipated expiration legal-status Critical
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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、振動・騒音の低減を効
果的に図るために使用される、2枚の金属板間に振動減
衰能に優れた粘弾性高分子樹脂を挾み込んでなる、所謂
拘束型の樹脂複合型制振金属板に関し、更に詳細には、
プレス成形性を左右する接着強度に優れ、スポット溶
接、プロジェクション溶接、シーム溶接に代表される抵
抗溶接性に特に優れた抵抗溶接可能型樹脂複合金属板に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a viscoelastic polymer resin having an excellent vibration damping capability sandwiched between two metal plates used for effectively reducing vibration and noise. The so-called constrained resin composite type vibration damping metal plate, more specifically,
The present invention relates to a resistance-weldable resin composite metal sheet having excellent adhesive strength that affects press formability and particularly excellent resistance weldability represented by spot welding, projection welding, and seam welding.

【0002】[0002]

【従来の技術】近年、各種の分野において静音性、静粛
性の要求が高まってきている。特に、自動車、家庭電器
製品等の原動機を使用する製品分野、或いは建築物に代
表される建材用途のように、外部からの振動・騒音を効
果的に抑制する必要のある分野では、この振動・騒音エ
ネルギーの吸収に有用な制振金属板の適用が積極的に進
められている。
2. Description of the Related Art In recent years, demands for quietness and quietness have been increasing in various fields. In particular, in the field of products using motors such as automobiles and home appliances, or in fields where it is necessary to effectively control external vibration and noise, such as in building materials such as buildings, The application of a damping metal plate useful for absorbing noise energy is being actively promoted.

【0003】このような拘束型の制振金属板としては、
冷延鋼板、各種めっき鋼板、表面処理鋼板、ステンレス
鋼板、アルミニウム板、チタン板等々を表皮板材に使用
し、この2枚の金属板材間に振動減衰に優れた粘弾性高
分子樹脂を挾み込んで形成される。
[0003] As such a restrained vibration-damping metal plate,
Cold rolled steel sheets, various types of plated steel sheets, surface-treated steel sheets, stainless steel sheets, aluminum sheets, titanium sheets, etc. are used as skin sheets, and a viscoelastic polymer resin with excellent vibration damping is sandwiched between these two metal sheets. Is formed.

【0004】しかし、表皮板材間に挾持された高分子樹
脂は電気絶縁体であるため、従来から薄物材料を構造部
材に使用する際の代表的な接合技術であるスポット溶
接、プロジェクション溶接、シーム溶接等々の抵抗溶接
法がそのまま適用できない難点があった。
However, since the polymer resin sandwiched between the skin plates is an electrical insulator, spot welding, projection welding, and seam welding, which are typical joining techniques when a thin material is used for a structural member, have conventionally been used. There is a drawback that the resistance welding method cannot be applied as it is.

【0005】最近、この電気絶縁体である粘弾性高分子
樹脂に導電性を付与するために、鉄粉(特開昭57−5
1453号公報)、ニッケル粉末(特開昭63−1880
40号公報)等の各種金属粉末や、カーボン粉末(特開昭
57−163560号公報)等の導電性物質を添加する
方法が広く採用されつつある。
Recently, in order to impart conductivity to the viscoelastic polymer resin which is an electric insulator, iron powder (Japanese Patent Application Laid-Open No.
No. 1453), nickel powder (JP-A-63-1880).
No. 40) and a method of adding a conductive substance such as carbon powder (Japanese Patent Application Laid-Open No. 57-163560) are being widely adopted.

【0006】[0006]

【発明が解決しようとする課題】このような従来の樹脂
複合型金属板においては、それなりに抵抗溶接性を向上
させる成果を収めている。しかし、これらの金属板にお
いては、未だ溶接スプラッシユ(チリ)や電極の溶着、或
いは図1に示すような通電路が制限され、集中電流が流
れ易い部品間のなじみの悪い状態での溶接時には、表皮
金属板の溶断等の溶接不良が発生する欠点を伴ってい
る。このようななじみ不良は、部品の成形加工時のそり
やひねれ、或いはフランジシワの発生によってもたらさ
れる。また、端部溶接は、ガンの辷りや自動溶接時の位
置精度の狂いによってもたらされるものである。
In such a conventional resin composite type metal plate, the effect of improving the resistance weldability has been obtained. However, in these metal plates, welding splashing (chilli) and welding of electrodes, or the current path as shown in FIG. 1 is limited, and when welding is performed in a state in which a concentrated current easily flows, in a state where the components are not well adapted to each other. There is a disadvantage that welding defects such as fusing of the skin metal plate occur. Such poor conformity is caused by warpage, twisting, or generation of flange wrinkles at the time of forming a part. In addition, end welding is caused by slippage of the gun or misalignment of position during automatic welding.

【0007】本発明は、上記従来技術の欠点を解消し、
抵抗溶接の際、特に集中電流が流れ易い部品間のなじみ
の悪い状態での溶接時や、端部溶接のような厳しい溶接
条件下であっても、安定した抵抗溶接性が得られる抵抗
溶接可能型樹脂複合金属板を提供することを目的とする
ものである。
The present invention solves the above-mentioned disadvantages of the prior art,
During resistance welding, stable resistance welding is possible, especially when welding is performed in a state of poor compatibility between parts where concentrated current easily flows, or under severe welding conditions such as end welding. It is an object to provide a mold resin composite metal plate.

【0008】[0008]

【課題を解決するための手段】かゝる課題を解決するた
め、本発明者等は、先ず、抵抗溶接時の溶接欠陥の発生
する原因を詳細に調査した。その結果、以下のような原
因があることが判明した。
Means for Solving the Problems In order to solve such problems, the present inventors first investigated in detail the causes of the occurrence of welding defects during resistance welding. As a result, the following causes were found.

【0009】すなわち、溶接不良の発生する原因は、制
振金属板をラミネートする時の圧着が不完全なため、高
分子樹脂中に添加した金属粉末がラミネート後に、表皮
金属板との界面に樹脂を巻き込んだ(介在させた)状態で
存在するものと、樹脂の巻き込みのない金属接触が充分
得られた状態で存在するものとが不均一に分布する。金
属粉末の粒径範囲の広いものを使用すると、この不均一
な分散が助長される。このような状態で金属粉末が分布
している場合には、抵抗溶接の通電初期には、樹脂の介
在しない状態の金属粉末を経由して電流が流れ、通電に
伴う抵抗発熱によって粘弾性高分子樹脂が溶融軟化し、
電極の加圧力によって周囲に排除され、表皮鋼板と金属
粉末との間で絶縁破壊が起こり、スパークを発生する。
また、表皮板材と金属粉末の間に樹脂が介在する頻度の
高い場合には、通電初期に通電回路として作用する金属
粉末に局部的に電流集中が起こり、この際の抵抗発熱量
が表皮板材の熱容量を大幅に上回れば、表皮板材が溶融
し、内部樹脂の軟化、溶融、蒸発に伴う表皮板材間の内
圧の上昇に耐え切れず、表皮板材に穴開きを発生する場
合も生じる。
[0009] That is, the cause of poor welding is due to imperfect pressure bonding when laminating the damping metal plate, so that after the metal powder added to the polymer resin is laminated, the interface with the skin metal plate is Are present in a state in which entangled (intervening) is present, and those present in a state in which metal contact is sufficiently obtained without entanglement of the resin. The use of a metal powder having a wide particle size range promotes this uneven dispersion. When the metal powder is distributed in such a state, at the initial stage of energization of resistance welding, an electric current flows through the metal powder in a state where no resin is interposed, and the viscoelastic polymer is generated by resistance heat generated by energization. The resin melts and softens,
It is removed to the surroundings by the pressing force of the electrode, and a dielectric breakdown occurs between the skin steel plate and the metal powder to generate a spark.
In addition, when the resin is frequently interposed between the skin plate material and the metal powder, current concentration locally occurs in the metal powder acting as an energizing circuit at the beginning of energization, and the resistance heat generation at this time causes the resistance heat generation of the skin plate material. If the heat capacity is significantly exceeded, the skin plate material is melted, and the internal resin cannot withstand an increase in internal pressure between the skin plate materials due to softening, melting, and evaporation of the internal resin, and a hole may be formed in the skin plate material.

【0010】したがって、抵抗溶接性の安定化を図るた
めには、表皮板材間の通電状態を良好にする必要があ
り、そのためには、ラミネート後の樹脂膜厚さよりも大
きな粒径の金属粉末を添加することが望ましいことが判
明した。
[0010] Therefore, in order to stabilize the resistance weldability, it is necessary to improve the energization state between the skin plate materials. For this purpose, a metal powder having a particle diameter larger than the resin film thickness after lamination is required. It has been found desirable to add.

【0011】また、この時に添加する金属粉末の粒度分
布の範囲が広い粉末を使用すると、ラミネート時の変形
が不均一となり、表皮金属板/金属粉末界面の樹脂排除
が充分に行われ難くなることも判明した。
If a powder having a wide range of particle size distribution of the metal powder to be added at this time is used, the deformation at the time of lamination becomes non-uniform, and it becomes difficult to sufficiently remove the resin at the interface between the skin metal plate and the metal powder. Also turned out.

【0012】そのためには、金属粉末の粒度分布を狭い
範囲に揃えることで、ラミネート時の変形が均一にな
り、表皮金属板/金属粉末界面の樹脂排除が充分には行
われ易くなり、その結果、溶接初期に安定した通電回路
となる金属接触が得られることになる。また、粒度範囲
を狭くすることで、金属粉末の添加量も少なく抑えら
れ、接着強度や制振性能の低下を最小限度に抑えること
が可能となることを見い出した。これらの知見に基づい
て更に詳細に検討を加え、ここに本発明を完成したもの
である。
For this purpose, by setting the particle size distribution of the metal powder within a narrow range, the deformation during lamination becomes uniform, and the resin at the interface between the skin metal plate and the metal powder is easily removed sufficiently. As a result, As a result, a metal contact that provides a stable energizing circuit at the beginning of welding can be obtained. Further, it has been found that, by narrowing the particle size range, the amount of metal powder added can be suppressed to a small amount, and it is possible to minimize the decrease in adhesive strength and vibration damping performance. Based on these findings, further detailed studies have been made, and the present invention has been completed here.

【0013】すなわち、本発明は、2枚の金属板の間
に、金属粒子を均一分散させた樹脂層を挾持し積層して
なる樹脂複合金属板において、ラミネート後の樹脂層厚
(t)と積層前の金属粉末粒子の平均径(d)との比を1.
1≦d/t≦2.5の範囲に規制し、かつ、積層前の金
属粉末の粒径範囲が、JIS Z 8801で規定される
篩い目が1メッシュ異なる篩いの範囲に80%以上が含
まれる粒度範囲に規制したことを特徴とする抵抗溶接性
に極めて優れた抵抗溶接可能型樹脂複合金属板を要旨と
するものである。
That is, the present invention relates to a resin composite metal plate formed by sandwiching a resin layer in which metal particles are uniformly dispersed between two metal plates and laminating the resin layer.
The ratio of (t) to the average diameter (d) of the metal powder particles before lamination is 1.
The range of 1 ≦ d / t ≦ 2.5 is regulated, and the particle size range of the metal powder before lamination is 80% or more in the range of sieves having meshes different by 1 mesh specified by JIS Z8801. SUMMARY OF THE INVENTION A gist of the present invention is a resistance-weldable resin composite metal sheet which is extremely excellent in resistance weldability and is characterized by being restricted to a particle size range to be controlled.

【0014】以下に本発明を更に詳細に説明する。Hereinafter, the present invention will be described in more detail.

【0015】[0015]

【作用】[Action]

【0016】本発明においては、このように樹脂複合金
属板のラミネート後の樹脂層厚とラミネート前の金属粉
末粒子の粒径の比を規定すると共に、ラミネート前の金
属粉末の粒径範囲を非常に狭く規定することにより、抵
抗溶接時の通電初期に発生する溶接異常の発生を効果的
に防止するものである。その結果として、図2に示すよ
うに抵抗スポット溶接の通電1サイクル目の抵抗値(初
期抵抗値)を300μΩ以下に低位安定化させることが
できる。
In the present invention, the ratio between the thickness of the resin layer after lamination of the resin composite metal plate and the particle size of the metal powder particles before lamination is defined, and the particle size range of the metal powder before lamination is extremely limited. By narrowing the range, it is possible to effectively prevent the occurrence of welding abnormalities occurring at the beginning of energization during resistance welding. As a result, as shown in FIG. 2, the resistance value (initial resistance value) in the first cycle of energization of the resistance spot welding can be stabilized at a low level to 300 μΩ or less.

【0017】そのためには、まず、ラミネート後の樹脂
層厚(t)と積層前の金属粉末粒子の平均径(d)との比を
1.1≦d/t≦2.5の範囲に規制する。ここで、平均
粒子径は、篩い目のメッシュの公称サイズから算術平均
で求まる粒子径である。この比が1.1未満では、金属
粒子の変形量が小さく、安定した通電回路が得られな
い。その結果、抵抗溶接時の溶接不良の発生を有効に防
止することができなくなる。また2.5を超えると、接
着強度の低下等のため好ましくない。
For this purpose, first, the ratio between the thickness (t) of the resin layer after lamination and the average diameter (d) of the metal powder particles before lamination is restricted to the range of 1.1 ≦ d / t ≦ 2.5. I do. Here, the average particle diameter is a particle diameter obtained by arithmetic mean from the nominal size of the mesh of the sieve. If this ratio is less than 1.1, the amount of deformation of the metal particles is small, and a stable energizing circuit cannot be obtained. As a result, it becomes impossible to effectively prevent the occurrence of poor welding during resistance welding. On the other hand, if it exceeds 2.5, it is not preferable because the adhesive strength is lowered.

【0018】更には、金属粉末の粒度分布を狭い範囲に
揃えた粉末を使用する。具体的には、金属粉末の粒径範
囲が、JIS Z 8801で規定される篩い目が1メッ
シュ異なる篩いの範囲に80%以上が含まれる粒度分布
に規制するのである。この点、従来は、使用される金属
粉末の粒径範囲は、JIS Z 8801で規定される篩
いで2ランク或いは3ランクの比較的粒径範囲の広い粉
末が使用されていた。従来は2ランク品又は3ランク品
であるのに対し、本発明では1ランク品ということがで
きる。
Further, a powder having a uniform particle size distribution of the metal powder is used. Specifically, the particle size range of the metal powder is regulated to a particle size distribution in which 80% or more is included in a range of sieves having meshes different by 1 mesh specified in JIS Z8801. In this regard, conventionally, a metal powder having a relatively large particle size range of 2 ranks or 3 ranks in a sieve specified in JIS Z 8801 has been used. Conventionally, it is a two-rank product or a three-rank product, but in the present invention, it can be regarded as a one-rank product.

【0019】なお、本発明において樹脂複合金属板に使
用される粘弾性高分子樹脂層の厚さは特に制限されるも
のではないが、10〜150μmが望ましく、制振性能
と抵抗溶接性の両者を望む場合には、20〜80μmの
範囲が良い。樹脂膜厚さが10μm未満では、樹脂の制
振性能、すなわち、振動エネルギーを熱エネルギーに変
換し放散させる効果が急激に減衰し、制振材料本来の特
性を発揮できなくなるので好ましくない。また、樹脂層
に金属粉末が添加された場合には、この金属粉末によっ
て、樹脂のずり変形を阻害するロッキング効果があるの
で、20μm以上の厚さがより好ましい。一方、樹脂膜
厚さが150μmを超えても制振性能自体の低下はない
が、樹脂自体の強度と表皮板材との強度差が大きくなり
すぎ、実用の成形加工時に端部のズレ量が大きくなり不
利となる。抵抗溶接可能型の場合には、樹脂層に均一分
散させた金属粉末が2枚の金属板間に接触し、金属接触
を確保することで安定した通電路として作用することが
必要なため、添加する金属粒子のサイズを勘案して80
μm程度が好ましい。
In the present invention, the thickness of the viscoelastic polymer resin layer used for the resin composite metal plate is not particularly limited, but is preferably from 10 to 150 μm. Is desired, the range of 20 to 80 μm is good. If the resin film thickness is less than 10 μm, the vibration damping performance of the resin, that is, the effect of converting vibration energy into heat energy and dissipating it is rapidly attenuated, and the inherent characteristics of the vibration damping material cannot be exhibited. Further, when a metal powder is added to the resin layer, the metal powder has a locking effect of inhibiting shear deformation of the resin, so that a thickness of 20 μm or more is more preferable. On the other hand, even if the resin film thickness exceeds 150 μm, the vibration damping performance itself does not decrease, but the difference between the strength of the resin itself and the strength of the skin plate material becomes too large, and the deviation amount of the end portion during practical molding processing is large. It is disadvantageous. In the case of the resistance weldable type, it is necessary that the metal powder uniformly dispersed in the resin layer comes into contact between the two metal plates and acts as a stable current path by ensuring metal contact. 80 considering the size of the metal particles
It is preferably about μm.

【0020】また、制振性樹脂としては、ポリオレフィ
ン系、ポリエステル系、アクリル系、ポリウレタン系、
酢酸ビニール系等々の各種樹脂系の高分子樹脂の使用が
可能である。また、樹脂層の架橋構造化は、溶接性を阻
害し、溶接不良の発生をもたらすものでなければ、その
使用は制限されるものでないことは言うまでもない。
The vibration damping resin includes polyolefin, polyester, acrylic, polyurethane, and the like.
Various resin-based polymer resins such as vinyl acetate can be used. Further, it goes without saying that the use of the crosslinked structure of the resin layer is not limited as long as the weldability is not hindered and welding defects are not generated.

【0021】樹脂層に導電性を付与するための金属粉末
としては、その材質は制限されるものではなく、例え
ば、鉄、ニッケル、アルミニウム、銅、錫、亜鉛、ステ
ンレス等々の金属及び合金の各種粉末を用いることがで
きる。
The material of the metal powder for imparting conductivity to the resin layer is not limited, and examples thereof include various metals and alloys such as iron, nickel, aluminum, copper, tin, zinc, and stainless steel. Powder can be used.

【0022】用いる金属板材としては、通常の冷延鋼
板、各種めっき鋼板、すなわち、溶融亜鉛めっき鋼板、
合金化溶融亜鉛めっき鋼板、電気亜鉛めっき鋼板、亜鉛
−金属(例えば、ニッケル、鉄等)合金めっき鋼板、めっ
き鋼板表面に表面処理(各種のクロメート処理、リン酸
塩処理、カップリング処理、有機樹脂被覆処理等々)を
行った表面処理鋼板、ステンレス鋼板、アルミニウム
板、チタン板等々の金属板が使用できる。また、めっき
鋼板の場合には、種々のめっき付着量が使用可能であ
り、めっき付着量の面から何ら制限されるものではな
い。
Examples of the metal sheet used include ordinary cold-rolled steel sheets, various types of plated steel sheets, that is, hot-dip galvanized steel sheets,
Alloyed hot-dip galvanized steel sheet, electro-galvanized steel sheet, zinc-metal (e.g., nickel, iron, etc.) alloy-coated steel sheet, surface treatment on the surface of the plated steel sheet (various chromate treatment, phosphate treatment, coupling treatment, organic resin A metal plate such as a surface-treated steel plate, a stainless steel plate, an aluminum plate, a titanium plate or the like that has been subjected to a coating treatment or the like can be used. In the case of a plated steel sheet, various coating weights can be used, and there is no limitation in terms of the coating weight.

【0023】勿論、抵抗溶接としても、スポット溶接、
プロジェクション溶接、シーム溶接に代表される各種の
抵抗溶接が可能であることは云うまでもない。
Of course, spot welding,
It goes without saying that various types of resistance welding typified by projection welding and seam welding are possible.

【0024】次に本発明の実施例を示す。Next, an embodiment of the present invention will be described.

【0025】[0025]

【実施例1】板厚0.4mmtの連鋳アルミキルド鋼板の
両面に合金化溶融亜鉛めっき(めっき付着量:45/4
5g/m2)した鋼板と、粒径範囲として、JIS Z 88
01で規定される篩い目が1ランク異なるニツケル粉末
と3ランク異なるニッケル粉末をそれぞれ3容量%添加
し均一分散させたポリオレフィン系熱可塑性樹脂を用い
て、樹脂膜厚さ30μmから80μmの範囲、線圧20kg
f/cmから80kgf/cmの範囲、接着ロール温度220℃
から250℃の範囲で、連続ラミネートした。ラミネー
ト後の樹脂の膜厚(t)、金属粒子の平均粒径(d)、並び
にこの膜厚(t)と金属粒子の平均径(d)との比(d/t)
を表1に示す。また、粒径分布を表2に示す。
Example 1 Galvannealed galvanizing (coated amount: 45/4) on both sides of a continuously cast aluminum killed steel sheet having a thickness of 0.4 mmt
5 g / m 2 ) and a grain size range of JIS Z 88
Using a polyolefin-based thermoplastic resin in which 3% by volume of nickel powder and 3 ranks of nickel powder having different sieves specified by 01 and 3 ranks are added and uniformly dispersed, the resin film thickness ranges from 30 μm to 80 μm. 20kg pressure
f / cm to 80kgf / cm, adhesive roll temperature 220 ℃
To 250 ° C. for continuous lamination. The thickness (t) of the resin after lamination, the average particle diameter (d) of the metal particles, and the ratio (d / t) of the thickness (t) to the average diameter (d) of the metal particles.
Are shown in Table 1. Table 2 shows the particle size distribution.

【表1】 [Table 1]

【表2】 [Table 2]

【0026】得られた樹脂複合鋼板から、溶接用試験
片、接着強度測定用試験片を採取し、特性評価を行っ
た。その結果を表1に併記する。
From the obtained resin composite steel sheet, a test piece for welding and a test piece for measuring adhesive strength were collected and evaluated for characteristics. The results are also shown in Table 1.

【0027】溶接性は、図1に示す試験片を用い、電極
チップ:先端径6mmφ-40R、Cr−Cuドーム型電
極、加圧力:150kgf、溶接電流:10KA、通電時
間:12サイクル(60Hz)の条件で、同一条件で10
0枚溶接し、溶接不良の発生する試験片枚数比で評価し
た。この時発生する溶接不良は、被溶接点以外の場所で
発生するスパーク放電による表皮鋼板の穴開き、表皮鋼
板の溶断不良、表皮鋼板表面へのチリの吹き出し、制振
鋼板接着面での内部スパーク不良及び溶接電流が通電し
ない未通電等である。
The weldability was measured using the test piece shown in FIG. 1. Electrode tip: tip diameter: 6 mmφ-40R, Cr-Cu dome electrode, pressure: 150 kgf, welding current: 10 KA, conduction time: 12 cycles (60 Hz) Under the same conditions, 10
No welding was performed, and the evaluation was made based on the ratio of the number of test pieces at which poor welding occurred. The poor welding that occurs at this time can be caused by holes in the skin steel sheet due to spark discharge occurring at places other than the welded point, poor melting of the skin steel sheet, blowout of dust on the surface of the skin steel sheet, internal sparking at the adhesive surface of the damping steel sheet It is a failure or a non-energized state where the welding current is not energized.

【0028】表1中、1ランク品においてd/tが本発
明範囲内の例が本発明例であり、抵抗溶接性が極めて優
れていることがわかる。特に図1に示す隙間付き試験片
の端部溶接のように、制振鋼板にとって厳しい溶接条件
下であっても、本発明例では、金属粉末による溶接初期
の通電性が安定し、溶接不良を発生することなく、安定
した溶接が可能である。剪断接着強度も表1及び図3に
示すように優れている。
In Table 1, it can be seen that examples of d / t within the range of the present invention in the 1 rank product are the examples of the present invention, and the resistance weldability is extremely excellent. In particular, even under severe welding conditions for the damping steel sheet, as in the case of end welding of a test piece with a gap shown in FIG. Stable welding is possible without occurrence. The shear adhesive strength is also excellent as shown in Table 1 and FIG.

【0029】[0029]

【実施例2】樹脂層の厚さを40μmとし、金属粉末の
添加量を変化させた以外は、実施例1と同様の条件によ
って樹脂複合鋼板を製作した。その結果を図4に示す。
溶接安定性の観点から見ると、同図に示すように、粒径
範囲を狭くした金属粉末を使用することで、より少量の
金属粉末添加量で溶接性が安定になることがわかる。
Example 2 A resin composite steel sheet was manufactured under the same conditions as in Example 1 except that the thickness of the resin layer was 40 μm and the amount of the metal powder added was changed. FIG. 4 shows the results.
From the viewpoint of welding stability, as shown in the figure, it can be seen that the use of a metal powder having a narrow particle size range stabilizes the weldability with a smaller amount of metal powder added.

【0030】[0030]

【発明の効果】以上詳述したように、本発明によれば、
2枚の金属板の間に金属粉末を均一分散させた樹脂層を
挾持し積層してなる樹脂複合金属材において、樹脂層厚
さと金属粉末の平均粒径の比を規制すると共に、添加・
使用する金属粉末粒子の粒径範囲をJIS Z 8801
で規定される篩い目のサイズが1ランク異なる範囲に重
量比で80%以上の粉末が含まれるように篩った粉末を
使用することにより、なじみの悪い試験片のしかも端部
溶接のような厳しい溶接条件下であっても、少量の金属
粉末の添加で、安定した抵抗溶接性の確保が可能とな
る。
As described in detail above, according to the present invention,
In a resin composite metal material formed by sandwiching and laminating a resin layer in which metal powder is uniformly dispersed between two metal plates, the ratio between the resin layer thickness and the average particle size of the metal powder is regulated, and
The particle size range of the metal powder particles used is specified in JIS Z8801.
The use of powder sieved so that the size of the sieves specified in sieving contains 80% or more of the powder in a weight ratio in a range different by one rank makes it possible to obtain a test piece with poor adaptability, such as end welding. Even under severe welding conditions, stable resistance weldability can be ensured by adding a small amount of metal powder.

【図面の簡単な説明】[Brief description of the drawings]

【図1】抵抗溶接試験片の形状寸法及び溶接試験要領を
説明する図で、(a)は試験片を示し、(b)は溶接後の状
態を示している。
FIG. 1 is a view for explaining the shape and dimensions of a resistance welding test piece and the procedure of a welding test, wherein (a) shows the test piece and (b) shows a state after welding.

【図2】ラミネート後の樹脂膜の厚さと初期抵抗値の関
係を示す図である。
FIG. 2 is a diagram showing a relationship between a thickness of a resin film after lamination and an initial resistance value.

【図3】剪断接着強度と平均粒径(a)/樹脂膜厚(t)の
比との関係を示す図である。
FIG. 3 is a diagram showing the relationship between shear adhesive strength and the ratio of average particle size (a) / resin film thickness (t).

【図4】金属粉末添加量と溶接不良発生率の関係を示す
図である。
FIG. 4 is a diagram showing the relationship between the amount of metal powder added and the incidence of poor welding.

【符合の説明】[Description of sign]

1 試験片 2 表皮鋼板 3 仮付け溶接個所 4 スポット溶接(本溶接)個所 1 Test piece 2 Skin steel plate 3 Temporary welding spot 4 Spot welding (main welding) spot

───────────────────────────────────────────────────── フロントページの続き (72)発明者 高野 清 兵庫県加古川市金沢町1番地株式会社神 戸製鋼所加古川製鉄所内 (72)発明者 高田隆英 兵庫県加古川市金沢町1番地株式会社神 戸製鋼所加古川製鉄所内 (56)参考文献 特開 昭63−158243(JP,A) (58)調査した分野(Int.Cl.6,DB名) B32B 1/00 - 35/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kiyoshi Takano 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Kobe Steel Works Kakogawa Works (72) Inventor Takahide Takada 1 Kanazawacho Kakogawa City, Hyogo Prefecture Kobe Corporation (56) References JP-A-63-158243 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B32B 1/00-35/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 2枚の金属板の間に、金属粒子を均一分
散させた樹脂層を挾持し積層してなる樹脂複合金属板に
おいて、ラミネート後の樹脂層厚(t)と積層前の金属粉
末粒子の平均径(d)との比を1.1≦d/t≦2.5の範
囲に規制し、かつ、積層前の金属粉末の粒径範囲が、J
IS Z 8801で規定される篩い目が1メッシュ異な
る篩いの範囲に80%以上が含まれる粒度範囲に規制し
たことを特徴とする抵抗溶接性に極めて優れた抵抗溶接
可能型樹脂複合金属板。
1. A resin composite metal plate in which a resin layer in which metal particles are uniformly dispersed is sandwiched and laminated between two metal plates, a resin layer thickness (t) after lamination and a metal powder particle before lamination. Of the metal powder before lamination is limited to the range of 1.1 ≦ d / t ≦ 2.5.
A resistance weldable resin composite metal sheet having extremely excellent resistance weldability, characterized in that the sieve specified by IS Z8801 is regulated to a particle size range in which 80% or more is included in a sieve range different by 1 mesh.
JP22187692A 1992-06-15 1992-06-15 Resin composite metal plate with excellent resistance weldability Expired - Fee Related JP2945544B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22187692A JP2945544B2 (en) 1992-06-15 1992-06-15 Resin composite metal plate with excellent resistance weldability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22187692A JP2945544B2 (en) 1992-06-15 1992-06-15 Resin composite metal plate with excellent resistance weldability

Publications (2)

Publication Number Publication Date
JPH05345386A JPH05345386A (en) 1993-12-27
JP2945544B2 true JP2945544B2 (en) 1999-09-06

Family

ID=16773570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22187692A Expired - Fee Related JP2945544B2 (en) 1992-06-15 1992-06-15 Resin composite metal plate with excellent resistance weldability

Country Status (1)

Country Link
JP (1) JP2945544B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687815A5 (en) * 1994-07-13 1997-02-28 Alusuisse Lonza Services Ag Formable composite panel.

Also Published As

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