JP2595659B2 - Powder for damping steel plate - Google Patents
Powder for damping steel plateInfo
- Publication number
- JP2595659B2 JP2595659B2 JP63133011A JP13301188A JP2595659B2 JP 2595659 B2 JP2595659 B2 JP 2595659B2 JP 63133011 A JP63133011 A JP 63133011A JP 13301188 A JP13301188 A JP 13301188A JP 2595659 B2 JP2595659 B2 JP 2595659B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- metal powder
- steel sheet
- damping steel
- damping
- 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
- 239000000843 powder Substances 0.000 title claims description 57
- 229910000831 Steel Inorganic materials 0.000 title claims description 46
- 239000010959 steel Substances 0.000 title claims description 46
- 238000013016 damping Methods 0.000 title claims description 26
- 239000002184 metal Substances 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 239000011812 mixed powder Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、制振鋼板を製造するとき２枚の薄鋼板に挟
む成形性の良好な粉末材に関する。Description: TECHNICAL FIELD The present invention relates to a powder material having good formability sandwiched between two thin steel plates when manufacturing a damping steel plate.
（従来の技術） 従来より制振鋼板は、例えば第３図に示すように、２
枚の重ね合わされた薄鋼板１、２の中間に防振機能を有
する有機樹脂３を挟んだサンドイッチ構造をとってい
る。この種の制振鋼板は、有機樹脂３の導電性が悪いた
め、一般に溶接性が劣ることが多い。(Prior Art) Conventionally, as shown in FIG.
It has a sandwich structure in which an organic resin 3 having an anti-vibration function is interposed between the thin steel sheets 1 and 2 which are stacked. This type of damping steel sheet generally has poor weldability due to poor conductivity of the organic resin 3.
そのため、溶接性を改善した制振鋼板では、前記有機
樹脂に代えてステンレス鋼などの金属粉を薄鋼板の中間
に挟んだ構造にしている。Therefore, the damping steel sheet having improved weldability has a structure in which metal powder such as stainless steel is sandwiched between thin steel sheets in place of the organic resin.
このような制振鋼板を製造する時には、金属粉例えば
ステンレス鋼粉末に制振機能を担う有機樹脂を混合し、
この混合粉末を溶剤を用いてスラリーにし、このスラリ
ー状にしたものを薄鋼板の片面に塗布し、この混合粉末
薄層の上に別の薄鋼板を重ね合わせ得られたサンドイッ
チ構造体を圧延することにより、最終製品の導電性制振
鋼板を造っている。When manufacturing such a vibration-damping steel sheet, metal powder such as stainless steel powder is mixed with an organic resin having a vibration-damping function,
This mixed powder is slurried using a solvent, the slurry is applied to one side of a thin steel sheet, and another thin steel sheet is superimposed on this mixed powder thin layer, and the obtained sandwich structure is rolled. As a result, the conductive damping steel sheet of the final product is manufactured.
（発明が解決しようとする課題） しかし、従来のスラリーを用いると、スラリーを構成
する金属粉末の粒径が薄鋼板間の隙間に比べて十分に小
さいと、金属粉末が有機樹脂に完全に囲まれた状態とな
るため全体として導電性を持つことができず、このため
添加した金属粉末は溶接性の改善のための有効な働きを
することができない。また金属粉末の粒径が十分に大き
いと、薄鋼板の反対側の表面に圧延時に金属粉末からの
圧力で凹凸部等が形成され、制振鋼板の表面仕上げが悪
くなるという問題がある。(Problems to be Solved by the Invention) However, when the conventional slurry is used, if the particle size of the metal powder constituting the slurry is sufficiently smaller than the gap between the thin steel plates, the metal powder is completely surrounded by the organic resin. Therefore, the metal powder added cannot have an effective function for improving the weldability. Further, when the particle size of the metal powder is sufficiently large, unevenness or the like is formed on the surface on the opposite side of the thin steel sheet by the pressure from the metal powder during rolling, and there is a problem that the surface finish of the damping steel sheet is deteriorated.
そこで本発明は、このような問題点を解決するために
なされたもので、制振鋼板の薄鋼板間に塗布される粉末
であって、塗布時に均質な薄層を形成しやすく、制振鋼
板の導電性を良好にし、圧延後の制振鋼板の表面仕上げ
を良好にする制振鋼板用粉末を提供することを目的とす
る。Therefore, the present invention has been made in order to solve such problems, and is a powder applied between the thin steel sheets of the damping steel sheet, it is easy to form a uniform thin layer at the time of application, damping steel sheet The purpose of the present invention is to provide a powder for a vibration-damping steel sheet which improves the electrical conductivity of the steel sheet and improves the surface finish of the vibration-damping steel sheet after rolling.
（課題を解決するための手段） そのために、本発明に制振鋼板用粉末は、水噴霧法に
より造った金属粉末を低温焼結し、この焼結体を粉砕し
て前記粉末の粒径より大きい粒径の金属粉としたことを
特徴とする。(Means for Solving the Problems) For this purpose, the powder for a vibration damping steel sheet according to the present invention is obtained by sintering a metal powder produced by a water spray method at a low temperature, pulverizing the sintered body, and obtaining a particle size of the powder. It is characterized by a metal powder having a large particle size.
また、前記金属粉末の粒径は30μｍ以下、前記金属粉
の粒径は150μｍ以下とするのが望ましく、さらに金属
粉の見掛密度は2.0g/cm3以下とするのが望ましい。Further, the particle diameter of the metal powder is preferably 30 μm or less, the particle diameter of the metal powder is preferably 150 μm or less, and the apparent density of the metal powder is preferably 2.0 g / cm 3 or less.
（作用） 本発明の制振鋼板用粉末は、水噴霧法により造った金
属粉末を低温焼結し、この焼結体を粉砕して前記金属粉
末の粒径より大きい粒径の金属粉としたので、金属粉末
の有効接触面積を大きくすることが可能になり、有機樹
脂を混合し溶剤を用いてスラリー状となしても、金属粉
末が有機樹脂に完全に囲まれるようなことはなく、従っ
て導電性が保たれ、溶接性の良好な制振鋼板用粉末が得
られる。(Function) The powder for a vibration-damping steel sheet of the present invention is obtained by sintering a metal powder produced by a water spray method at a low temperature, and pulverizing the sintered body into a metal powder having a particle diameter larger than that of the metal powder. Therefore, it is possible to increase the effective contact area of the metal powder, and even if the organic resin is mixed and formed into a slurry using a solvent, the metal powder is not completely surrounded by the organic resin, and therefore, Conductivity is maintained, and a powder for vibration-damping steel sheet having good weldability is obtained.
しかも、低温焼結されている金属粉を用いているの
で、この金属粉をスラリー状にしたものを薄鋼板上に塗
布して粉末材薄層を形成し、この粉末材薄層の上に別の
薄鋼板を積層してサンドイッチ構造にし、このサンドイ
ッチ構造体を圧延するときには、薄鋼板間に挟まれた金
属粉は容易に変形するため、圧延時の圧力で薄鋼板表面
に凹凸等が形成されることもない。したがって、電気伝
導性が良好でかつ表面が平坦な良好な制振鋼板を得るこ
とができる。In addition, since metal powder that has been sintered at a low temperature is used, a slurry of this metal powder is applied to a thin steel plate to form a thin powder material layer. When the sandwich structure is rolled, the metal powder sandwiched between the thin steel sheets is easily deformed, so that the pressure during the rolling causes irregularities and the like to be formed on the surface of the thin steel sheet. Never even. Therefore, it is possible to obtain a good damping steel sheet having good electric conductivity and a flat surface.
また、制振鋼板の中間層は通常50μｍ程度の厚さが要
求されているので、制振鋼板用粉末に用いる金属粉末の
粒径は50μｍ以下あれば良いが、望ましいのは30μｍ以
下が良く、金属粉の粒径はサンドイッチ構造体を圧延す
るので150μｍ以下が望ましい。In addition, since the intermediate layer of the damping steel sheet is generally required to have a thickness of about 50 μm, the particle size of the metal powder used for the powder for the damping steel sheet may be 50 μm or less, but preferably 30 μm or less. The particle size of the metal powder is desirably 150 μm or less because the sandwich structure is rolled.
さらに本発明の金属粉の見掛密度は2.0g/cm3以下にす
ることにより、金属粉はスラリー中で沈殿にしくくなる
ので、余分な撹拌設備が不要となる。また配管中への沈
殿を防止することができるため、設備事故を大幅に減ら
すことが可能となる。Further, by setting the apparent density of the metal powder of the present invention to 2.0 g / cm 3 or less, the metal powder becomes difficult to precipitate in the slurry, so that an extra stirring device is not required. In addition, since sedimentation in the piping can be prevented, equipment accidents can be significantly reduced.
（実施例） 本発明の実施例を説明する。(Example) An example of the present invention will be described.
まず高圧水噴霧法により粒径30μｍ以下のステンレス
鋼粉末を作製し、このステンレス鋼粉末を温度800〜105
0℃で低温焼結し、この焼結体をボールミルまたはハン
マミルにより150μｍ以下のステンレス鋼粉末に粉砕し
た。このときの見掛密度は、1.8g/cm3であった。First, a stainless steel powder having a particle size of 30 μm or less was prepared by a high-pressure water spray method, and the stainless steel powder was heated to a temperature of 800 to 105 μm.
The sintered body was sintered at a low temperature of 0 ° C., and this sintered body was pulverized by a ball mill or a hammer mill into a stainless steel powder of 150 μm or less. The apparent density at this time was 1.8 g / cm 3 .
得られたステンレス鋼粉末を有機樹脂と共に５％混合
し、有機樹脂にてスラリーを造った。The obtained stainless steel powder was mixed with an organic resin at 5%, and a slurry was prepared with the organic resin.
そして、第２図に示すように、板厚０、５〜１、0mm
の薄鋼板２上に前記スラリー４を厚さ約170μｍになる
ように塗布し、そのスラリー４の薄層の上に、薄鋼板１
を重ね合わせ、薄鋼板１、スラリー４および薄鋼板２と
でサンドイッチ構造体５を作製した。Then, as shown in FIG. 2, the plate thickness is 0, 5 to 1, 0 mm
The slurry 4 is applied to a thickness of about 170 μm on a thin steel sheet 2 of
And a sandwich structure 5 was produced from the thin steel sheet 1, the slurry 4, and the thin steel sheet 2.
このサンドイッチ構造体５を温度150〜250℃で圧延し
た。This sandwich structure 5 was rolled at a temperature of 150 to 250 ° C.
圧延後、サンドイッチ構造体５は、第１図に示すよう
に、薄鋼板１と薄鋼板２の間に高密度のステンレス鋼粉
末と樹脂との混合粉末層６を形成する。After the rolling, the sandwich structure 5 forms a mixed powder layer 6 of high-density stainless steel powder and resin between the thin steel plate 1 and the thin steel plate 2 as shown in FIG.
得られた制振鋼板（サンドイッチ構造体）７は、薄鋼
板１と薄鋼板２間で導電性が良好なため、溶接性に優れ
ている。The obtained damping steel plate (sandwich structure) 7 has excellent conductivity between the thin steel plate 1 and the thin steel plate 2 and thus has excellent weldability.
この実施例では、金属粉末にステンレス鋼粉末を用い
たが、本発明は、これに限らずその他の金属粉末を用い
てもよいことはもちろんである。In this embodiment, stainless steel powder is used as the metal powder. However, the present invention is not limited to this, and it goes without saying that other metal powders may be used.
（発明の効果） 本発明の制振鋼板用粉末材を用いれば、金属粉は金属
粉末を低温焼結したものであるので、サンドイッチ構造
体を圧延するとき、圧延の圧力で薄鋼板の表面に凹凸等
が形成されることもなく、金属粉末の有効接触面積を大
きくすることが可能となるので、電気伝導性が良好で溶
接性に優れ、表面仕上げの良好な制振鋼板を得ることが
できる。(Effect of the Invention) If the powder material for vibration damping steel sheet of the present invention is used, the metal powder is obtained by sintering the metal powder at a low temperature. Since it is possible to increase the effective contact area of the metal powder without forming irregularities or the like, it is possible to obtain a damping steel sheet having good electric conductivity, excellent weldability, and good surface finish. .
第１図は本発明の制振鋼板用粉末材を用いて作製した導
電性制振鋼板の実施例を表わす概略断面図、第２図は圧
延前の薄鋼板間の混合粉末層の状態を表わす拡大概略断
面図、第３図は従来例を表わす第１図に対応する概略断
面図である。 １、２……薄鋼板、 ５……サンドイッチ構造体、 ４……スラリー、 ６……混合粉末層。FIG. 1 is a schematic cross-sectional view showing an embodiment of a conductive damping steel sheet manufactured using the powder material for a damping steel sheet of the present invention, and FIG. 2 shows a state of a mixed powder layer between thin steel sheets before rolling. FIG. 3 is an enlarged schematic sectional view corresponding to FIG. 1 showing a conventional example. 1, 2 ... thin steel sheet, 5 ... sandwich structure, 4 ... slurry, 6 ... mixed powder layer.
Claims (3)
し、この焼結体を粉砕して前記金属粉末の粒径より大き
い粒径の金属粉としたことを特徴とする制振鋼板用粉
末。1. A vibration-damping steel sheet characterized by sintering a metal powder produced by a water spray method at a low temperature, and pulverizing the sintered body into a metal powder having a particle diameter larger than the particle diameter of the metal powder. For powder.
金属粉の粒径が150μｍ以下である請求項１に記載の制
振鋼板用粉末。2. The powder for a vibration-damping steel sheet according to claim 1, wherein the metal powder has a particle size of 30 μm or less, and the metal powder has a particle size of 150 μm or less.
る請求項１または請求項２に記載の制振鋼板用粉末。3. The powder for a vibration-damping steel sheet according to claim 1, wherein the apparent density of the metal powder is 2.0 g / cm 3 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63133011A JP2595659B2 (en) | 1988-05-31 | 1988-05-31 | Powder for damping steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63133011A JP2595659B2 (en) | 1988-05-31 | 1988-05-31 | Powder for damping steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257601A JPH0257601A (en) | 1990-02-27 |
| JP2595659B2 true JP2595659B2 (en) | 1997-04-02 |
Family
ID=15094704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63133011A Expired - Lifetime JP2595659B2 (en) | 1988-05-31 | 1988-05-31 | Powder for damping steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2595659B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1014116C2 (en) * | 2000-01-19 | 2001-07-20 | Corus Aluminium Walzprod Gmbh | Method and device for forming a laminate of compressed metal powder with a foaming agent between two metal layers, and product formed therewith. |
-
1988
- 1988-05-31 JP JP63133011A patent/JP2595659B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0257601A (en) | 1990-02-27 |
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