JPS63126725A - Heating and cooling method for laminated plate - Google Patents

Abstract

PURPOSE:To prepare a laminated plate of good quality without voids on the bonded face of resin and a metallic plate by installing heating/cooling rolls rotatable in the face in parallel with a bus face, varying the pressure on the central section of the plate and the pressure on the end of the plate and varying heat conduction in the plate width position. CONSTITUTION:A laminated plate 3 consisting of metal and resin is prepared by passing a resin plate 1 from heating roll group H1, H2 through cooling roll group C1, C2, C3 in a state of being inserted between metallic plates 2, 2' to be used as skins. During said process, the resin plate varies continuously from the molten state to the solidified state, generating foams. To prevent foams from being generated, the pressure in the central section of the plate is made larger than that of the plate ends by the rolls incorporated with a heater element in the melting process and by the cooling rolls in the solidifying process. For the purpose, such a simple mechanism is employed as to change the space between the rolls by crossing the rolls in the face parallel with the laminated plate. By said arrangement, a minute differences in the pressure ratio in the width direction can easily be obtained at a high accuracy.

Description

【発明の詳細な説明】 （Ｍ業上の利用分野） 本発明は金属板の間に樹脂を挾み、樹脂を溶融接着させ
て金属板と樹脂のラミネート板を製造する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Application in M Industry) The present invention relates to a method for manufacturing a laminate plate of a metal plate and a resin by sandwiching a resin between metal plates and melting and adhering the resin.

、（従来の技術） 金属板の軽量化や防振効果付加など多機能化を図って、
種々の樹脂を金属板間に挾んだ所謂ラミネート板の製造
が近年盛んに行われているが、これの製造方法としては
、樹脂と金属の接着に接着材を用いる方法（糊付法）と
、挾みこむ樹脂自身を溶融させて金属板と樹脂を接着さ
せる方法（溶融接着法）の２つの方法がある。(Conventional technology) We aim to make the metal plate more multi-functional, such as reducing its weight and adding anti-vibration effects.
In recent years, the production of so-called laminate plates, in which various resins are sandwiched between metal plates, has been actively carried out, and there are two methods for producing these: a method that uses an adhesive to bond the resin and metal (gluing method); There are two methods: 1, and a method of bonding the metal plate and the resin by melting the sandwiched resin itself (melt bonding method).

このうち溶融接着方式にてラミネート板を製造する場合
には、樹脂内の含有水分による蒸気や含有ガス等の樹脂
自身から発生するガス、または外部からの巻き込み気泡
ヰ等により、樹脂と金属の接着面に空孔が発生しやすい
。When manufacturing a laminate board using the melt bonding method, the bonding between the resin and metal is caused by vapor generated by the moisture contained in the resin, gas generated from the resin itself such as contained gas, or air bubbles drawn in from the outside. Pores are likely to occur on the surface.

この接着面の空孔は、プレス時の樹脂と金属板の剥離や
接着力の低下など製品品質上重大な欠陥となるので、こ
れを出来るだけ排除しなくてはならないが、十分に有効
といえる対策はなかった（特開昭６０−１５４０６６号
公報）。These pores on the adhesive surface cause serious defects in product quality, such as peeling of the resin and metal plate during pressing and a decrease in adhesive strength, so they must be eliminated as much as possible, but it can be said that it is sufficiently effective. No countermeasures were taken (Japanese Unexamined Patent Publication No. 154066/1983).

（発明が解決しようとする問題点） 以上の問題点を解決するため、本発明はラミネート板の
圧下中の溶融および圧下中の冷却凝固過程において、機
械的に例えば板中央部と板端部の圧下率を変え、板中央
部の圧下率を板端部の圧下率より大きくすることにより
、溶融および／まだは凝固に方向性を持たせて、溶融樹
脂中の気泡を排出させ、気泡のない樹脂と金属板の接着
面を得ると同時に、板厚精度の良いラミネート板をつく
るための加熱冷却方法を提供するものである。(Problems to be Solved by the Invention) In order to solve the above-mentioned problems, the present invention mechanically processes the melting process during rolling of a laminate plate and the cooling solidification process during rolling. By changing the rolling reduction rate and making the rolling reduction rate at the center of the plate larger than at the edge of the plate, melting and/or solidification can be oriented, allowing air bubbles in the molten resin to be expelled, making it bubble-free. The present invention provides a heating and cooling method for obtaining a bonding surface between a resin and a metal plate and at the same time producing a laminated plate with good thickness accuracy.

（問題点を解決するための手段） 本発明は内部から熱供給または熱排出が出来るようにし
たロールを対向配置し、そのロール間（＝板材を挾んで
、ロールとの接触伝熱によりラミネート板を製造する方
法において、少なくとも一つ以上の加熱ロールおよび／
または冷却ロールを、板バス面と平行な面内で旋回可能
として、板の中央部の圧下と板端部の圧下を変化させ、
板幅位置で熱伝導を変化させることを特徴とした金属と
樹脂のラミネート板の加熱冷却方法である。(Means for Solving the Problems) The present invention involves arranging rolls facing each other so that heat can be supplied or discharged from the inside, sandwiching the plate material between the rolls, and forming a laminate plate by contact heat transfer with the rolls. In the method of manufacturing at least one heated roll and/or
Alternatively, the cooling roll can be rotated in a plane parallel to the board bath surface, and the reduction in the center part of the board and the reduction in the end part of the board are changed,
This is a heating and cooling method for metal and resin laminate plates, which is characterized by changing heat conduction depending on the width of the plate.

以下本発明の一実施例を第１図および第２図（＝基づい
て説明する。An embodiment of the present invention will be described below based on FIGS. 1 and 2.

第１図に示すように、樹脂板１が表皮となる金属板２．
２’ｉ二挾まれた状態で加熱ロール群Ｈ１＋Ｈ２から冷
却ロール群ＣＩ　＋　０２　＋　Ｃ３を通って、金属と
樹脂のラミネート板３が得られるが、この間樹脂板は溶
融状態から凝固状態まで連続的に変化し、この過程で気
泡が生成し、これが残存すると樹脂層の特性を損ないラ
ミネート板の特性低下の原因になるおそれがある。As shown in FIG. 1, a metal plate 2 whose outer layer is a resin plate 1.
The metal and resin laminate plate 3 is obtained by passing from the heating roll group H1 + H2 to the cooling roll group CI + 02 + C3 in a sandwiched state, but during this time the resin plate is continuously changed from a molten state to a solidified state. During this process, bubbles are generated, and if they remain, they may impair the properties of the resin layer and cause deterioration of the properties of the laminate board.

このため、溶融過程と凝固過程中に気泡を排出するのが
有効である。まず、溶融過程に着目すると、溶融のだめ
の熱量は発熱体を組み込んだロールから、表皮材である
金属板へ接触伝熱で入熱され、金属板を経由して樹脂へ
伝わるが、この時板中央部の圧下を板端部より大きく取
れば、板中央部の接触面圧は板端部より大きくなる。For this reason, it is effective to remove air bubbles during the melting and solidification processes. First, focusing on the melting process, the amount of heat in the melting pot is input from the roll containing the heating element to the metal plate that is the skin material by contact heat transfer, and is transferred to the resin via the metal plate. If the reduction at the center is greater than at the edges of the plate, the contact surface pressure at the center of the plate will be greater than that at the edges.

接触伝熱（＝おける熱伝達係数は、（１）式（二足され
るように表面あらさやロールおよび金属板の熱伝導率等
の物理特性が同じであれば、接触面圧に比例するので、
板中央部の面圧が高ければ、それだけ板中央部への入熱
が増える。The heat transfer coefficient in contact heat transfer (=) is proportional to the contact pressure if the physical properties such as surface roughness and thermal conductivity of the roll and metal plate are the same, as shown in equation (1). ,
The higher the surface pressure at the center of the plate, the more heat will be input to the center of the plate.

この結果、板中央部から樹脂溶融が開始され、余分な溶
融樹脂を少しずつ板端方向に押し出しながら樹脂溶融が
進行するので、接触面の空孔発生防止に多大な効果があ
る。As a result, resin melting starts from the center of the plate, and the resin melting progresses while pushing out excess molten resin little by little toward the edges of the plate, which is highly effective in preventing the formation of voids on the contact surface.

δ−−−−−−らさ λ−−−熱伝導率 ｈｏ−−一直接接触における熱コンダクタンスＰ　−−
一接触面押付圧力 Ｈ−−一接触固体の硬さ 添字　１．２−−一接触固体の区別 ｆ　−−一接触面隙間の介在物質 才た；凝固過程においても接着強度およびラミネート板
の板厚を精度良く出すために、ロールで圧下拘束しつつ
冷却することが望ましく、ロール：二よる接触伝熱冷却
で凝固をなさしめるが、これも前述の溶融と同じよう（
二、板中央部の圧下を板端部より大きくすることで、板
中央部の凝固を先に進め、板中央部から板端部に向かっ
て凝固を進行させれば、ガスが内部（二閉じ込められる
ことがなく、接着面の空孔発生防止に多大な効果がある
。δ---Rath λ---Thermal conductivity ho---Thermal conductance in direct contact P---
One-contact surface pressing pressure H--Hardness subscript of one-contact solid 1.2--Distinction of one-contact solid f--Intervening material in the one-contact surface gap; Adhesive strength and plate thickness of laminate board also in solidification process In order to produce the powder with high precision, it is desirable to cool it while being compressed and restrained by rolls, and solidify by contact heat transfer cooling between the rolls, but this is also the same as the melting described above (
2. By making the reduction at the center of the plate larger than at the edge of the plate, the solidification of the center of the plate can proceed first, and if the solidification progresses from the center of the plate toward the edge of the plate, the gas inside This has a great effect on preventing the formation of voids on the adhesive surface.

板中央部の圧下率を板端部より大きくする方法としては
、ロール（＝凸クラウンを付与するのが一般的であるが
、■入側素材板厚変動による製品（ラミネート板）板厚
変動を押えるために、ロールに大きな剛性を持たせてい
るが、剛性の割（二はラミネートに必要な圧下刃が小さ
いため、ロールに与えるべきクラウン量が小さくなって
機械加工が難しい。■製造条件変化に対応させてクラウ
ン量を変更させることが望ましい。の２点からロールに
凸クラウンを付与する方法は好ましくない。A common way to make the rolling reduction at the center of the board larger than at the edges is to apply a roll (= convex crown); In order to hold the product down, the rolls have great rigidity, but compared to the rigidity (secondly, the rolling blade required for lamination is small, so the amount of crown that must be given to the rolls is small, making machining difficult. ■Changes in manufacturing conditions It is desirable to change the amount of crown in accordance with the above.The method of imparting a convex crown to the roll is not preferable due to the following two points.

そのため、第２図に示すように、ロールをラミネート板
と平行な面内で交差させることにより、ロール間の隙間
を変え、圧下率が板中大部と板端部で変えられるように
することで、これを解決した。Therefore, as shown in Figure 2, by intersecting the rolls in a plane parallel to the laminate board, the gap between the rolls can be changed and the rolling reduction ratio can be changed between the middle part of the board and the ends of the board. And I solved this.

（実施例） ロール父差方式によるロール間の隙間変化は式（２）で
弄される。(Example) The change in the gap between rolls due to the roll difference method is manipulated by equation (2).

ロール軸方向座標Ｘでのギャップ 一一−（２） ６（Ｘ）：ロールオフセット量 Ｒ１：上ロール半径 Ｒ２：下ロール半径 ｇｏ：クロヌポイントでのギャップ Ｘ　：ロール軸方向座標 この式より板幅１０００　＋ｇｌ、ロール径が上下共φ
５ｏｏｍｍの時、板中央部に１０μｍ（ラミネート板厚
１一時の１％）の圧下率増を行う゛とすれば、馬＝　Ｒ
２＝　５００　、　　ｇｏ　＝　ｌ　、　　ｘ　＝　５
００　、　　ｇ　＝１．０１として、δ＝４．４７朔を
得る。Gap at roll axis direction coordinate Width 1000 +gl, roll diameter is φ for both top and bottom
If the rolling reduction rate is increased by 10μm (1% of the laminate board thickness 1) at the center of the board when the thickness is 5oomm, then horse = R
2 = 500, go = l, x = 5
00, g = 1.01, we obtain δ = 4.47 shu.

つまり上下ロールの交差角０　＝　ｔａｎ、−１（４，
４７７５００）＝０．５１°であり、ロールチョック間
距離を２０００ｗｎとすれば、チョック部で各々約５Ｗ
上ロールチヨツクと下ロールチョックを逆方向；二水平
変位（也ハス方向）させればよい。In other words, the intersection angle of the upper and lower rolls is 0 = tan, -1 (4,
477500) = 0.51°, and if the distance between the roll chocks is 2000wn, each chock part has about 5W.
The upper roll chock and the lower roll chock may be displaced in opposite directions; two horizontal displacements (also in the helical direction).

以上のようにロールチョックを水平変位させる機構は、
数請から２０＋ｍ＊程度なのでテーノ；ライナやネジな
ど簡単な機構でよく、きわめて容易に、はぼ２次曲線で
精度の高い、滑らかな等価クラウンを得ることが出来る
。The mechanism for horizontally displacing the roll chock as described above is
Since it is about 20+m* from several orders, a simple mechanism such as a liner and screws is required, and it is extremely easy to obtain a highly accurate and smooth equivalent crown with a quadratic curve.

なお、生産速度、樹脂種類や厚みにより樹脂の溶融過程
および特性が変わるので、この機構を組み込むことが有
効なスタンドは一概に決められないが、一般にはｌ＠１
加熱スタンド及び／またはＨｉｌｌ冷却スタンドにこの
機構を持たせるのが効果的である。Note that the melting process and properties of the resin change depending on the production speed, resin type, and thickness, so it is not possible to definitively determine which stands will be effective in incorporating this mechanism, but in general, l@1
It is effective to provide this mechanism to the heating stand and/or the Hill cooling stand.

（発明の効果） 以上のように、末法（二よれば容易（二望みの板幅方向
の微小圧下率差を精度良く得ることが出来、板中央部か
ら板端部に向かって清らかに溶融・凝固を行なうことが
出来るので、樹脂と金属板の接着面（二空孔のない、良
品質のラミネート板を製造できる。(Effects of the Invention) As described above, according to the final method (2), it is possible to easily obtain the desired micro-reduction difference in the width direction of the sheet with high accuracy, and to melt and melt cleanly from the center of the sheet to the edges of the sheet. Since solidification can be performed, it is possible to produce high-quality laminate plates with no pores on the adhesive surface between resin and metal plates.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（Ａ）はラミネート板製造過程の説明図、（Ｂ）
は樹脂の温度変化の図表、第２図はロール交差によるロ
ール間すきま変化説明図で、（Ａ）は側面図、（Ｂ）は
Ａ−Ａ矢視図である。 代理人　弁理士　　　茶野木　立　夫 第１図 第２図Figure 1 (A) is an explanatory diagram of the laminate board manufacturing process, (B)
2 is a diagram of the temperature change of the resin, and FIG. 2 is an explanatory diagram of the change in the gap between the rolls due to the intersection of the rolls, (A) is a side view, and (B) is a view taken along the line A-A. Agent Patent Attorney Tatsuo Chanoki Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 内部から熱供給または熱排出が出来るようにしたロール
を対向配置し、そのロール間に板材を挾んで、ロールと
の接触伝熱によりラミネート板を製造する方法において
、少なくとも一つ以上の加熱ロールおよび／または冷却
ロールを、板パス面と平行な面内で旋回可能として、板
の中央部の圧下と板端部の圧下を変化させ、板幅位置で
熱伝導を変化させることを特徴とする金属と樹脂のラミ
ネート板の加熱冷却方法A method of manufacturing a laminate board by contact heat transfer with the rolls, in which rolls capable of supplying or discharging heat from the inside are disposed facing each other, a board is sandwiched between the rolls, and at least one heating roll and /Or a metal characterized in that the cooling roll is rotatable in a plane parallel to the sheet pass plane to change the rolling reduction at the center of the sheet and the rolling reduction at the edge of the sheet, thereby changing heat conduction at the sheet width position. Heating and cooling method for and resin laminate plates