JPH0274331A - Resin laminate steel plate - Google Patents
Resin laminate steel plateInfo
- Publication number
- JPH0274331A JPH0274331A JP22716888A JP22716888A JPH0274331A JP H0274331 A JPH0274331 A JP H0274331A JP 22716888 A JP22716888 A JP 22716888A JP 22716888 A JP22716888 A JP 22716888A JP H0274331 A JPH0274331 A JP H0274331A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- synthetic resin
- metal powder
- steel plate
- thickness
- 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 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 229920005989 resin Polymers 0.000 title claims abstract description 14
- 239000011347 resin Substances 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 37
- 239000000057 synthetic resin Substances 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 238000009835 boiling Methods 0.000 claims abstract description 8
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052738 indium Inorganic materials 0.000 claims abstract description 4
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052718 tin Inorganic materials 0.000 claims abstract description 3
- 229910000576 Laminated steel Inorganic materials 0.000 claims description 25
- 239000011701 zinc Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000013016 damping Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000006087 Silane Coupling Agent Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract description 2
- 150000008065 acid anhydrides Chemical class 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 230000003245 working effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 25
- 229910052742 iron Inorganic materials 0.000 description 12
- 238000007747 plating Methods 0.000 description 9
- 230000007547 defect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910001297 Zn alloy Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011133 lead Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910007567 Zn-Ni Inorganic materials 0.000 description 1
- 229910007614 Zn—Ni Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、スポット溶接性に優れた樹脂ラミネート鋼
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 resin-laminated steel plate with excellent spot weldability.
１対の鋼板間に合成樹脂層を圧着して形成する合成樹脂
ラミネート鋼板は、制振性能の面で優れた効果を発揮す
ることが認められ、現在では自動車、電機、建材等の各
分野において急速に普及しつつある。Synthetic resin laminated steel sheets, which are formed by bonding a synthetic resin layer between a pair of steel sheets, have been recognized to have excellent vibration damping performance, and are currently used in various fields such as automobiles, electrical machinery, and building materials. It is rapidly becoming popular.
しかしながら、中間層を形成している合成樹脂層が、非
電導性であるために溶接加工時、特に抵抗スポット溶接
を行なうためには、別途にバイパス回路を設けるなど、
特殊な工夫を行なわなければならない不便さがあった。However, since the synthetic resin layer forming the intermediate layer is non-conductive, it is necessary to install a separate bypass circuit during welding, especially when performing resistance spot welding.
There was the inconvenience of having to take special measures.
現在では、合成樹脂層中にグラファイト、鉄。Currently, graphite and iron are included in the synthetic resin layer.
銅、亜鉛あるいはアルミニウム等の導電性粒子を混合さ
せる技術（特開昭５０−７９９２０号公報、特開昭５３
−１２８６８７号公報、特開昭５６−３１５４０号公報
、特開昭５７−１４６６４９号公報）、あるいは金属繊
維（特開昭５８−１４２８４５号公報）、らせん状の２
４電体（特開昭５８〜１４２８４４号公報）を混合させ
る技術によって、前述した従来技術における煩雑な工夫
を行なうことなしに直接スポット溶接を可能とする技術
が開発され実用化されつつある。Technology of mixing conductive particles such as copper, zinc or aluminum (JP-A-50-79920, JP-A-53
-128687, JP 56-31540, JP 57-146649), or metal fibers (JP 58-142845), spiral 2
A technique that allows direct spot welding without the complicated contrivances of the prior art described above has been developed and is being put into practical use by a technique of mixing four electric bodies (Japanese Unexamined Patent Publication Nos. 58-142844).
（発明が解決しようとする課題〕
ところが、このような改良されているはずの合成樹脂ラ
ミネート鋼板であっても、そのスポット溶接性について
はいまだに解決しなければならない問題が次に示す通り
存在しており、さらに改良の余地が残されている。(Problems to be Solved by the Invention) However, even with synthetic resin laminated steel sheets that are supposed to have been improved, there are still problems with spot weldability that need to be solved as shown below. However, there is still room for further improvement.
（１） 使用する導電性粒子自体に起因する問題当然
のことながら、使用する導電性の粒子は高い伝導度を存
し、しかも、その表面は長期にわたり酸化されにくいも
のであることが要求される。(1) Problems caused by the conductive particles themselves Naturally, the conductive particles used must have high conductivity, and their surfaces must be resistant to oxidation over a long period of time. .
さらに、溶接時のような高温加熱下においても同様の性
能を維持し続けることの可能なものであることが必要で
ある。Furthermore, it is necessary that the same performance can be maintained even under high-temperature heating such as during welding.
しかしながら、上述した従来の合成樹脂ラミネート鋼板
では、いまだに十分な導電性を有しているとは云えず、
特に、アルミニウム、鉄、銅などの金属粉では、取扱い
いかんによっては酸化による皮膜生成によって導電性が
たびたび阻害されていた。However, the conventional synthetic resin laminated steel sheets mentioned above still cannot be said to have sufficient electrical conductivity.
In particular, the conductivity of metal powders such as aluminum, iron, and copper is often inhibited by the formation of a film due to oxidation depending on how they are handled.
（２）溶接時に異常抵抗値が発生する問題スポット溶接
の電圧印加時においては、各導電性粒子は異状加熱を起
こさないような均一抵抗値を有し且つ導電性の面から低
抵抗値を存することが必要である。(2) Problem of abnormal resistance value occurring during welding When voltage is applied during spot welding, each conductive particle has a uniform resistance value that does not cause abnormal heating, and has a low resistance value from the viewpoint of conductivity. It is necessary.
しかしながら、従来の導電性粒子は、その高硬度あるい
は粒径の相違により、導電性粒子と鋼板との「なしみ」
の差および接触状態の差等の影響を受け、均一な抵抗値
を有しているとは云い難かった。However, conventional conductive particles do not cause "stains" between the conductive particles and the steel plate due to their high hardness or difference in particle size.
It was difficult to say that the resistance value was uniform due to the influence of differences in the resistance and contact conditions.
このため、鋼板の孔あき（ピンホール）および黒シミ（
ピンホール直前の状態での綱板表面の点状ブルーイング
）等、不均一発熱欠陥が避は難かった。For this reason, holes (pinholes) and black stains (
It was difficult to avoid uneven heat generation defects such as dotted bluing on the steel plate surface (just before pinholes).
（３） 鋼板を防錆化するためのＺｎまたはＺｎ合金
を鋼板（鉄属板）の表面上にめっきした場合、導電性粒
子の金属粉は前記めっき層と接触することになるが、金
属粉と鋼板（鉄属板）の中間に存在するこれらめっき金
属（Ｚｎ）は、沸点が溶接温度と比べて低い（Ｚｎの沸
点＝９３０℃）ために、電流集中時に蒸気化し、通電し
なくなる。このため上記めっきが存在することによって
、ピンホール等欠陥の発生が著しく促進される。(3) When Zn or Zn alloy is plated on the surface of a steel plate (iron metal plate) to make the steel plate rust-proof, the metal powder of the conductive particles comes into contact with the plating layer, but the metal powder These plated metals (Zn), which exist between the metal plate and the steel plate (iron metal plate), have a boiling point lower than the welding temperature (boiling point of Zn = 930°C), so they vaporize when current is concentrated and no current is passed. Therefore, the presence of the above-mentioned plating significantly accelerates the occurrence of defects such as pinholes.
ちなみに、鋼板の溶接温度は、鋼板（鉄）の融点（１５
３５℃）よりも高い温度である。By the way, the welding temperature of steel plate is the melting point of steel plate (iron) (15
35°C).
この発明は１対の亜鉛めっきまたは亜鉛合金めっき鋼板
の間に３０〜１１００１Ｉ厚の合成樹脂層を圧着した樹
脂ラミネート鋼板であって、前記合成樹脂層には、前記
合成樹脂層の厚さｄに対して粒径が０．８〜２．０ｄで
あり、且つ、融点が６５０ ℃以下、好ましくは５００
”Ｃ以下、沸点が１６００℃以上、ピンカース硬度が１
００未満の金属粉またはその合金粉が前記合成樹脂の０
．２〜３．０容量％混合されていることに特徴を有する
ものである。The present invention is a resin-laminated steel sheet in which a synthetic resin layer having a thickness of 30 to 11,001 I is bonded between a pair of galvanized or zinc alloy-plated steel sheets, the synthetic resin layer having a thickness d of the synthetic resin layer. On the other hand, the particle size is 0.8 to 2.0 d, and the melting point is 650 °C or less, preferably 500 °C or less.
``below C, boiling point over 1600℃, Pinkers hardness 1
If the metal powder or its alloy powder is less than 0.00 in the synthetic resin,
．． It is characterized by being mixed at 2 to 3.0% by volume.
亜鉛合金としては、Ｚｎ−Ｐｅ、 Ｚｎ−Ｎｉ、 Ｚｎ
−Ａ／。Zinc alloys include Zn-Pe, Zn-Ni, Zn
-A/.
Ｚｎ−門ｎ等を使用する。Zn-mon etc. are used.
また、前記合成樹脂は変性した熱可塑性樹脂または熱硬
化性樹脂を使用し、さらに、前記金属粉または合金粉は
、鉛、すず５インジウムまたはアンチモンの金属粉また
はこれらの合金粉を使用する。The synthetic resin may be a modified thermoplastic resin or thermosetting resin, and the metal powder or alloy powder may be lead, tin-5-indium or antimony metal powder, or an alloy powder thereof.
この発明においては、１対のめっき鋼板の間に合成樹脂
を挟んで使用するが、この合成樹脂としては、酸および
酸無水物、シランカップリング剤等によって変性した熱
可塑性樹脂またはエポキシ樹脂等の熱硬化性樹脂等を使
用することができる。In this invention, a synthetic resin is sandwiched between a pair of plated steel plates, and the synthetic resin may be a thermoplastic resin or epoxy resin modified with an acid, an acid anhydride, a silane coupling agent, etc. Thermosetting resin or the like can be used.
以下、めっき鋼板を鋼板と称する。Hereinafter, the plated steel sheet will be referred to as a steel sheet.
ここで使用する合成樹脂層の厚さｄは、その両外側に配
する鋼板の厚さに対応させて、３０〜１００趨の範囲と
した。The thickness d of the synthetic resin layer used here was in the range of 30 to 100 mm, corresponding to the thickness of the steel plates disposed on both outer sides thereof.
合成樹脂層の厚さが３０−未満であると充分な制振性の
効果が得られない。一方、１００−を超えると、制振性
の挙動が厚みの増加に伴なわなくなり、制振性の向上傾
向は、特にある一定値以上ではみられなくなり経済性の
面からも好ましくない。If the thickness of the synthetic resin layer is less than 30 mm, sufficient vibration damping effect cannot be obtained. On the other hand, if it exceeds 100-, the behavior of damping properties does not follow the increase in thickness, and the tendency for improvement of damping properties cannot be seen particularly above a certain value, which is also unfavorable from an economic point of view.
さらに、樹脂層の厚さが大であると成形性が劣化するば
かりでなく、加えて溶接時等の熱を受けることにより樹
脂がガス化する機会が多くなり、溶接部に「ふくれ」等
を生じて外観不良の原因となる。Furthermore, if the thickness of the resin layer is too large, not only will the moldability deteriorate, but there will also be more opportunities for the resin to gasify when exposed to heat during welding, resulting in "blister" etc. in the welded area. This can cause a poor appearance.
次に、合成樹脂層に混合する導電化粒子について説明す
る。Next, the conductive particles to be mixed into the synthetic resin layer will be explained.
導電性粒子としては、融点６５０℃以下、沸点＋６００
’ｃ以上、ビッカース硬度（Ｈｖ）が１００未満の金属
粉またはその合金粉（以下、金属粉と称する。）を使用
する。The conductive particles have a melting point of 650°C or lower and a boiling point of +600°C.
Metal powder or alloy powder thereof (hereinafter referred to as metal powder) having a Vickers hardness (Hv) of less than 100 is used.
樹脂ラミネート鋼板の溶接は、前述のように鋼板（鉄原
板）の融点以上の温度で行なわれるので、溶接によって
蒸発するのを防ぐために金属粉は鋼板（鉄原板）の融点
（鉄の融点−１５３５℃）を超える沸点を有することを
必要とし１６００℃以上とした。As mentioned above, welding of resin-laminated steel plates is carried out at a temperature higher than the melting point of the steel plate (iron base plate), so in order to prevent evaporation during welding, the metal powder is heated to the melting point of the steel plate (iron base plate) (iron melting point - 1535). The boiling point was set at 1600°C or higher.
また、導電性粒子としては、高電気伝導性、耐酸化性あ
るいは鋼板との接触状態、密着性の向上等の条件を満足
させるために、比較的軟質金属粉、特に鉄（鉄原板）（
Ｈν＝ １００）よりも軟かい金属粉を使用するべきで
ある。従って、金属粉の硬度はＨｖ ＝ １００未満と
した。In addition, as conductive particles, relatively soft metal powder, especially iron (iron base plate)
Metal powders softer than Hv = 100) should be used. Therefore, the hardness of the metal powder was set to Hv = less than 100.
さらに、溶接時においては、溶接部の温度は前述したよ
うに高温となるが、溶接部の外側周辺は外側に離れるほ
ど温度は低下する。この温度低下した周辺部分の金属粉
が溶融すれば、電流は一ケ所に集中せず、この溶融部に
も流れる。従って、周辺部分の金属粉の融点はなるべく
低いほうが望ましく 、６５０℃以下、好ましくは５０
０℃以下とした。Further, during welding, the temperature of the welded part becomes high as described above, but the temperature of the outer periphery of the welded part decreases as the distance from the outside increases. If the metal powder in the surrounding area where the temperature has decreased is melted, the current will not be concentrated in one place but will also flow in this melted area. Therefore, it is desirable that the melting point of the metal powder in the peripheral area is as low as possible, and is preferably 650°C or lower, preferably 50°C or lower.
The temperature was below 0°C.
溶接部周辺の金属粉が溶融することにより、溶接部周辺
の急激な抵抗の上昇が防止される。By melting the metal powder around the weld, a sudden increase in resistance around the weld is prevented.
また、溶接部を加熱しても、加熱により金属粉が溶融す
ることにより、金属粉と鋼板との接触部が拡大するので
、加熱時の温度の象、激な上昇は防止される。Moreover, even if the welded part is heated, the heating melts the metal powder and expands the contact area between the metal powder and the steel plate, thereby preventing the temperature from rising rapidly during heating.
第１表に導電化粒子としての金属の融点、沸点および金
属粉のビッカース硬度（Ｈｖ）を示す、第１表に示すよ
うに、融点、沸点および硬さの条件を満たす金属粉とし
て、鉛、すす、インジウム。Table 1 shows the melting points and boiling points of metals as conductive particles, and the Vickers hardness (Hv) of metal powders.As shown in Table 1, lead, Soot, indium.
アンチモン、あるいは、これらの均等物質等が用いられ
る。Antimony or equivalent substances thereof are used.
以上のような制約条件に合致した材料による粉体は、平
滑状態の合成樹脂層の厚さｄに対して、０．８〜２．０
ｄに相当する粒径のものを、合成樹脂に対して０．２〜
３．０容量％混合することにより好ましい結果が得られ
る。Powder made of materials that meet the above constraints has a thickness of 0.8 to 2.0 with respect to the thickness d of the smooth synthetic resin layer.
The particle size corresponding to d is 0.2 to 0.2 to synthetic resin.
Favorable results are obtained by mixing 3.0% by volume.
金属粉の混合量は、樹脂ラミネート鋼機の物性に大きく
影響を及ぼすため、この範囲は最低限の導電性が確保で
きる混合量を下限値とし、接着剥離強度が低下する混合
量を上限値として設定され、０．２〜３．０容量％とし
た。The amount of metal powder mixed has a large effect on the physical properties of resin-laminated steel machines, so the lower limit of this range is the amount that ensures the minimum conductivity, and the upper limit is the amount that reduces the adhesive peel strength. It was set at 0.2 to 3.0% by volume.
また、金属粉の粒径は、ラミネート加圧時において押潰
されて鋼板とほどよく接触し、接触面積が大きくなるよ
うに、合成樹脂層の厚さｄに対して０．８〜２．０ｄに
相当する粒径のものを使用する。In addition, the particle size of the metal powder is 0.8 to 2.0 d with respect to the thickness d of the synthetic resin layer so that it is crushed during lamination pressurization and makes good contact with the steel plate, increasing the contact area. Use particles with a particle size corresponding to .
第１図はこの発明の樹脂ラミネート鋼板の一実施態様を
示す断面図である。FIG. 1 is a cross-sectional view showing one embodiment of the resin-laminated steel sheet of the present invention.
第１図において、ｌはめっき原板（鉄原板）、２は亜鉛
めっきまたは亜鉛合金めっき層、３は合成樹脂層、４は
金属粉である。ラミネート加圧時において、金属粉は鉄
原板よりも軟質なゆえに押潰されて、めっき原板とめっ
き層とからなるめっき鋼板５とほどよく接触して接触面
積は大きくなり、且つ接触は安定する。これによりスポ
ット溶接時の電流経路を安定的に確保することができ良
好な溶接が可能となる。In FIG. 1, l is a plating original plate (iron original plate), 2 is a zinc plating or zinc alloy plating layer, 3 is a synthetic resin layer, and 4 is a metal powder. During lamination pressurization, the metal powder is crushed because it is softer than the original iron plate, and comes into moderate contact with the plated steel plate 5 consisting of the original plate and the plating layer, increasing the contact area and stabilizing the contact. This makes it possible to stably secure a current path during spot welding, allowing for good welding.
また、溶接部が加熱しても、加熱により金属粉４が溶解
し、鋼板５と金属粉４の接触面積が拡大して抵抗の上昇
および加熱は防止される。Further, even if the welded portion is heated, the metal powder 4 is melted by the heating, and the contact area between the steel plate 5 and the metal powder 4 is expanded, thereby preventing an increase in resistance and heating.
第３図は、従来の樹脂ラミネート鋼板の１例を示す断面
図である。第３図において、１〜３．５は第２図と同一
６は導電性粒子である。FIG. 3 is a sectional view showing an example of a conventional resin-laminated steel plate. In FIG. 3, 1 to 3.5 are the same as in FIG. 2, and 6 is a conductive particle.
第３図に示すように、使用している導電性粒子６が硬い
物質（Ｃｕ、 Ｎｉ、 Ｆｅ、ステンレス）であるため
に、ラミネート加圧時に十分な圧潰が起こらず、鋼板５
との接触面積が小さくなり、且つ、接触状態は不安定で
あることが理解できる。As shown in FIG. 3, since the conductive particles 6 used are hard substances (Cu, Ni, Fe, stainless steel), sufficient crushing does not occur during lamination pressurization, and the steel plate 5
It can be seen that the contact area with the contact area becomes smaller and the contact state is unstable.
本発明の樹脂ラミネート鋼板は、導電性粒子として上述
した軟金属扮を使用しているため、高い電気伝導性が確
保されているとともに、軟金属粉とｔＩＡ板との接触状
態をも広く且つ安定に制御しうるため、低くかつ均一な
電気抵抗値を有するものとなっている。Since the resin-laminated steel sheet of the present invention uses the above-mentioned soft metal particles as conductive particles, it not only ensures high electrical conductivity but also widens and stabilizes the contact state between the soft metal powder and the tIA plate. Therefore, it has a low and uniform electrical resistance value.
導電性粒子の異状加熱によって生じる溶接欠陥は、この
ような低く且つ均一な電気抵抗値をもつこの樹脂ラミネ
ート鋼板により、その発生を未然に防止することができ
る。Welding defects caused by abnormal heating of conductive particles can be prevented from occurring by using this resin-laminated steel sheet having such a low and uniform electrical resistance value.
第４図は合成樹脂ラミネート鋼板の製造方法を示す工程
図である。一般に、合成樹脂ラミネート鋼板１５を製造
する方法は２種ある。第一の方法は、第４図に示すよう
に、導電化粒子が混合された合成樹脂をフィルム成形し
た樹脂フィルム１１を、加熱炉１２を通過して加熱され
たＺｎめっき鋼板１３ａの一面にロール１４を介して接
着し、次いで、加熱炉１２で再加熱し、他の鋼板１３ｂ
によって露出しているフィルム面を覆い、ロール１４を
介して圧着して製造する工程からなる。第２の方法は、
導電化粒子が混合された合成樹脂を鋼板に直接塗布した
後に別の鋼板と貼り合わす工程からなる。FIG. 4 is a process diagram showing a method for manufacturing a synthetic resin laminated steel plate. Generally, there are two methods for manufacturing the synthetic resin laminated steel sheet 15. In the first method, as shown in FIG. 4, a resin film 11 made of a synthetic resin mixed with conductive particles is rolled onto one surface of a Zn-plated steel plate 13a that has been passed through a heating furnace 12 and heated. 14 and then reheated in the heating furnace 12 to form another steel plate 13b.
The process consists of manufacturing by covering the exposed film surface with a roller 14 and pressing it with a roll 14. The second method is
It consists of a process in which a synthetic resin mixed with conductive particles is directly applied to a steel plate and then bonded to another steel plate.
この発明は、上記２種の製造方法のいずれも適用するこ
とが可能である。This invention can be applied to either of the above two manufacturing methods.
次に、この発明を実施例により詳述する。 Next, the present invention will be explained in detail with reference to examples.
鉛、すす、または、ｌＱｗｔ、χのすずを含有する鉛合
金の３種の金属粉を合成樹脂層にそれぞれ混合させたも
のを、厚さが０．６Ｎ、めっき付着量が４０ｇ／％の１
対の電気亜鉛めっき鋼板の間に圧着して樹脂ラミネート
鋼板を製造し、これから直径１３ｍの円盤状の試験片を
採取し本発明の供試体Ｎα１〜１１とした。Three types of metal powders including lead, soot, and lead alloy containing lQwt and χ tin were mixed in a synthetic resin layer, and the thickness was 0.6N and the plating weight was 40g/%.
A resin-laminated steel plate was produced by pressure bonding between a pair of electrogalvanized steel plates, and a disk-shaped test piece with a diameter of 13 m was taken from the resin-laminated steel plate and used as specimens Nα1 to Nα11 of the present invention.
比較のため、ニッケル、ステンレス鋼、 ｗ４． ｉ鉛
または鉄の５種の金属粉を合成樹脂層にそれぞれ混合さ
せたものを、厚さが０．６閣、めっき付着量が４０ ｇ
／ ｒｄの１対の電気亜鉛めっき鋼板の間に圧着して
樹脂ラミネート鋼板を製造し、これから直径１３Ｉｉ１
１の円盤状の試験片を採取し比較用供試体ＮＱ１〜６と
した。For comparison, nickel, stainless steel, w4. i. Five types of metal powders, lead or iron, are mixed into a synthetic resin layer with a thickness of 0.6 mm and a coating weight of 40 g.
A resin-laminated steel plate is manufactured by crimping between a pair of electrogalvanized steel plates of /rd, and from this a diameter of 13Ii1
A disk-shaped test piece of No. 1 was collected and designated as comparative specimens NQ1 to NQ6.
使用した金属粉、その平均粒径および混合量は第２表に
示した。The metal powders used, their average particle diameters and mixing amounts are shown in Table 2.
そして、各供試体に対してスポット溶接試験を行ない、
各供試体の抵抗値および溶接欠陥発生率を測定し、その
結果を第２表に併せて示した。Then, a spot welding test was performed on each specimen,
The resistance value and welding defect incidence rate of each specimen were measured, and the results are also shown in Table 2.
第２図は、各供試体の電気抵抗を調べるための装置を示
す概略説明図である。第２図において、９は試験片、８
は定電流電源、７は電圧計であり試験片９は断面図で示
した。抵抗の測定に際しては、各試験片に１０ ｋｇ
ｒ ７ｍ”の加圧力を与えた。FIG. 2 is a schematic explanatory diagram showing an apparatus for examining the electrical resistance of each specimen. In Figure 2, 9 is a test piece, 8
7 is a constant current power supply, 7 is a voltmeter, and test piece 9 is shown in a cross-sectional view. For resistance measurements, 10 kg was applied to each specimen.
A pressing force of 7 m'' was applied.
また、溶接は、電極先端径６鵬φ、加圧力２５０ｋｇｆ
、電流１０ｋＡ、通電時間１２サイクル１５０Ｈｚで行
ない、溶接欠陥の発生数を調べ、発生率（％）で示した
。In addition, welding is performed using an electrode tip diameter of 6 φ and a pressing force of 250 kgf.
The welding was conducted at a current of 10 kA and an energization time of 12 cycles at 150 Hz, and the number of welding defects occurring was investigated and expressed as an occurrence rate (%).
第
表
第２表に示すように、本発明の供試体阻１〜１１は、い
ずれも抵抗値が低（、また、溶接欠陥発生率が０％また
は極めて低い確率であった。As shown in Table 2, specimens 1 to 11 of the present invention all had low resistance values (and the welding defect incidence was 0% or extremely low).
これに対して、比較用供試体阻１〜６は、抵抗値が高く
、さらに、溶接欠陥発生率も高かった。On the other hand, comparative specimens Nos. 1 to 6 had high resistance values and also had high welding defect occurrence rates.
［発明の効果〕
この発明は、以上説明したように構成されているので、
以下に述べる有用な効果を奏する。[Effect of the invention] Since this invention is configured as explained above,
It has the following useful effects.
（υ 従来の導電化粒子に比べて鋼板の接触状態が改善
され、密着度が上昇し、均一抵抗を有し、且つ、低抵抗
である樹脂ラミネート鋼板が製造できる。(υ Compared to conventional conductive particles, the contact condition of the steel plate is improved, the degree of adhesion is increased, and a resin-laminated steel plate with uniform resistance and low resistance can be manufactured.
（２） このため、ピンホールなどの溶接欠陥発生原
因を未然に防止でき、且つ、特殊な工夫なしに良好なス
ボント溶接継手の作製が可能である。(2) Therefore, causes of welding defects such as pinholes can be prevented, and a good spont welded joint can be manufactured without special measures.
【図面の簡単な説明】
第１図はこの発明の一実格態様を示す断面図、第２図は
電気抵抗測定装置の概略説明図、第３ｔ２１は従来の樹
脂ラミネート鋼板の断面図、第４図は合成樹脂ラミネー
ト鋼板の製造する方法を示す工程図である０図面におい
て、
１・・・めっき原板
２・・・亜鉛めっきまたは亜鉛合金めっき層、３・・・
合成樹脂層、 ４・・・金属粉、５・・・めっ
き鋼板、 ６・・・導電性粒子、７・・・電圧
計、 ８・・・定電流電源、９・・・試験片
、 １１・・・樹脂フィルム、１２・・・加
熱炉、
１３ ａ 、 １３ ｂ ・−Ｚｎめっき鋼板、１４・
・・ロール、
１５・・・合成樹脂ラミネート鋼板。[Brief Description of the Drawings] Fig. 1 is a sectional view showing an actual embodiment of the present invention, Fig. 2 is a schematic explanatory diagram of an electrical resistance measuring device, No. 3t21 is a sectional view of a conventional resin laminated steel plate, and No. 4 The figure is a process diagram showing a method for manufacturing a synthetic resin laminated steel sheet. In drawing 0, 1... original plated sheet 2... zinc plating or zinc alloy plating layer, 3...
Synthetic resin layer, 4... Metal powder, 5... Plated steel plate, 6... Conductive particles, 7... Voltmeter, 8... Constant current power supply, 9... Test piece, 11. ... Resin film, 12... Heating furnace, 13 a, 13 b - Zn-plated steel plate, 14.
...Roll, 15...Synthetic resin laminated steel plate.
Claims (1)
３０〜１００μｍ厚の合成樹脂層を圧着した樹脂ラミネ
ート鋼板であって、前記合成樹脂層には、前記合成樹脂
層の厚さｄに対して粒径が０．８〜２．０ｄであり、且
つ、融点が６５０℃以下、沸点が１６００℃以上、ビッ
カース硬度が１００未満の金属粉またはその合金粉が前
記合成樹脂の０．２〜３．０容量％混合されていること
を特徴とする樹脂ラミネート鋼板。 ２ 前記金属粉または合金粉の融点が５００℃以下であ
る請求項１記載の樹脂ラミネート鋼板。 ３ 前記合成樹脂は変性した熱可塑性樹脂または熱硬化
性樹脂である請求項１記載の樹脂ラミネート鋼板。 ４ 前記金属粉または合金粉は、鉛、すず、インジウム
またはアンチモンである請求項１記載の樹脂ラミネート
鋼板。[Scope of Claims] 1. A resin-laminated steel sheet in which a synthetic resin layer with a thickness of 30 to 100 μm is bonded between a pair of galvanized or zinc alloy-plated steel sheets, the synthetic resin layer having a A metal powder or its alloy powder having a particle size of 0.8 to 2.0 d with respect to the thickness d, a melting point of 650°C or less, a boiling point of 1600°C or more, and a Vickers hardness of less than 100 is used as the synthetic resin. A resin-laminated steel sheet characterized by containing 0.2 to 3.0% by volume. 2. The resin laminated steel sheet according to claim 1, wherein the metal powder or alloy powder has a melting point of 500°C or less. 3. The resin laminated steel sheet according to claim 1, wherein the synthetic resin is a modified thermoplastic resin or a thermosetting resin. 4. The resin-laminated steel sheet according to claim 1, wherein the metal powder or alloy powder is lead, tin, indium, or antimony.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716888A JPH0274331A (en) | 1988-09-10 | 1988-09-10 | Resin laminate steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22716888A JPH0274331A (en) | 1988-09-10 | 1988-09-10 | Resin laminate steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274331A true JPH0274331A (en) | 1990-03-14 |
Family
ID=16856553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22716888A Pending JPH0274331A (en) | 1988-09-10 | 1988-09-10 | Resin laminate steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044678A1 (en) * | 1999-01-28 | 2000-08-03 | Nikon Corporation | Method and device for forming quartz glass |
| JP4835998B2 (en) * | 2004-07-02 | 2011-12-14 | 株式会社ニコン | Method of forming quartz glass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62151332A (en) * | 1985-12-25 | 1987-07-06 | 株式会社神戸製鋼所 | Composite metallic plate having excellent conductivity and manufacture thereof |
| JPS63158242A (en) * | 1986-08-25 | 1988-07-01 | 新日本製鐵株式会社 | Vibration-damping steel plate having excellent weldability |
| JPS63170031A (en) * | 1987-01-08 | 1988-07-13 | 日本鋼管株式会社 | Resin laminated steel plate |
| JPS63188040A (en) * | 1987-01-30 | 1988-08-03 | 新日本製鐵株式会社 | Weldable vibration-damping steel plate and manufacture thereof |
-
1988
- 1988-09-10 JP JP22716888A patent/JPH0274331A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62151332A (en) * | 1985-12-25 | 1987-07-06 | 株式会社神戸製鋼所 | Composite metallic plate having excellent conductivity and manufacture thereof |
| JPS63158242A (en) * | 1986-08-25 | 1988-07-01 | 新日本製鐵株式会社 | Vibration-damping steel plate having excellent weldability |
| JPS63170031A (en) * | 1987-01-08 | 1988-07-13 | 日本鋼管株式会社 | Resin laminated steel plate |
| JPS63188040A (en) * | 1987-01-30 | 1988-08-03 | 新日本製鐵株式会社 | Weldable vibration-damping steel plate and manufacture thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000044678A1 (en) * | 1999-01-28 | 2000-08-03 | Nikon Corporation | Method and device for forming quartz glass |
| US6505484B1 (en) | 1999-01-28 | 2003-01-14 | Nikon Corporation | Forming method of silica glass and forming apparatus thereof |
| JP4835998B2 (en) * | 2004-07-02 | 2011-12-14 | 株式会社ニコン | Method of forming quartz glass |
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