JPH0444842A - Manufacture of metal plate in the form of resin-sandwiched type - Google Patents

Abstract

PURPOSE:To uniformly give adhesive strength, a damping property, and the like by applying resin on one metal sheet strip surface, and then conducting it to a preheating furnace, and positioning heat insulating bodies on both end parts of the metal strip width direction so as to heat the resin in the width directional part, and further disposing the other metal strip on the resin surface, and compression bonding them thereafter. CONSTITUTION:A metal strip 2 from a rewinding reel 1 is rewound and, by the use of resin applying device 3, conductive filler-added resin is applied on the width directional center part or both end parts in one surface of the metal strip 2 and, on the other part, no filler- added resin is applied. Next, it is conducted to a preheating furnace 4 and, in the case of inputting heat more in the width central part than in the both end parts, both end parts of the metal strip 2 is covered with a heat insulating bodies 5 at the front step in order to increase the input heat in the central part. After a solvent in the resin is removed uniformly in the width direction of the metal strip 2, heat input is effected uniformly to the whole by means of a heater 6a at the rear step and, in the next place, it is conducted to compression rolls 7, and the other metal strip 2a is rewound from a rewinding reel 1a and then introduced to the compression rolls 7 in order to be positioned on the resin surface of the metal strip 2 for being compression-bonded into uniformly adhesive strength in the width direction, as a result, it is made into a resin sandwich metal strip 2 and, after that, it is cooled in a cooling device 8 and then wound round a winding roll 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a resin sandwich type metal plate.

(Prior art) In order to improve the weldability of specific parts of a resin sandwich type metal plate, a resin containing Ni-based filler is applied to both ends in the width direction of the metal strip (plate), and a filler-free resin is applied to the center part. It is known that arranging
Publication No.).

Further, a resin with high adhesive strength may be placed at both ends in the width direction of the metal band (plate), and a resin with low adhesive strength may be placed in the center.

In any of the above cases, after applying the resin, heat it in a preheating furnace,
In addition to removing the solvent in the resin, in the case of a thermosetting resin, crosslinking is performed.

Therefore, when a filler-free resin and a filler-added resin are applied, the solvent removal (drying) of the filler-free resin is slow, while the solvent removal of the filler-added resin is faster.
Therefore, if the solvent is removed from filler-free resin, there will be almost no solvent in filler-added resin, and the resin will become hard. The adhesive strength is poor and it peels off easily, resulting in a loss of commercial value.

Furthermore, when thermosetting resins with different adhesive strengths are applied, the resins cure differently due to heat input, resulting in the presence of uncured resin, which is accompanied by drawbacks such as poor adhesion and deterioration of vibration damping properties.

(Problems to be Solved by the Invention) The present invention provides a method for manufacturing a resin sandwich type metal plate having excellent adhesive strength and vibration damping properties.

(Means for Solving the Problems) The features of the present invention are as follows: (1) A resin is applied to one side of the metal strip, the resin is guided to a preheating furnace, and heat insulators are placed at both ends in the width direction of the metal strip. A method for manufacturing a resin sandwich metal plate in which the resin at the center in the width direction is heated, and the other metal band is placed on the resin surface and crimped. (2) Applying resin to one side of one metal band and preheating. A method for producing a resin sandwich type metal plate, in which a heat insulating body is placed in the center of the metal strip in the width direction, the resin is heated at both ends in the width direction, and the other metal strip is placed on the resin surface and crimped. 3) Apply resin to one side of the metal strip and heat it in a preheating furnace. Place the other metal strip on the resin surface and press it. After that, heat insulators are placed at both ends of the metal strip in the width direction. A method for manufacturing a resin sandwich type metal plate in which the central part is heated, and (4) one metal strip is coated with resin on one side, guided to a preheating furnace and heated, the other metal strip is placed on the resin surface, and after crimping, the metal This is a method for manufacturing a resin sandwich type metal plate, in which a heat insulator is positioned at the center in the width direction of the band, and both ends in the width direction are heated.

For example, Ni and Fe-based conductive filler-added resins are placed at both ends in the width direction of a resin sandwich type metal plate (band),
When placing filler-free resin at the center in the width direction, the resin is applied to one side of one metal strip using a roll coater, etc. as described above, and then the solvent in the resin is removed and the metal band and resin are preheated. , lead to the preheating furnace.

During this preheating, the solvent is removed from the filler-added resin earlier than the non-additive resin, and when the solvent removal from the non-additive resin is completed, the filler-added resin is in a solidified state, and the other metal band is then bonded to the resin. The filler-added resin portion has poor adhesion to the metal strip even if it is placed on the surface and press-bonded.

Heat insulators are placed at both ends of the metal strip at the position where the metal strip passes through the preheating furnace to prevent heating (heat input) from the top and bottom, allowing more heat to be input to the center in the width direction and less to both ends.

In addition, when applying filler-added resin to the center of the metal strip widthwise and filler-free resin to both ends and preheating, placing a heat insulator in the center in the opposite direction prevents deterioration of adhesive properties as a whole. can do.

After heat input (heating) in this way, the other metal strip is placed on the resin surface and crimped, or after the heat input treatment as described above, the whole is uniformly heated (heated) and the other metal strip is placed on the resin surface and crimped. is placed on the resin surface and crimped.

In addition, for example, if thermosetting resins with different crosslinking completion times after heat input or resins with different adhesive strengths are applied to the center and both ends of the metal strip in the width direction, and heat treatment is performed in a preheating furnace, the above method may be applied. Uniform adhesive strength, vibration damping properties, etc. can be obtained by placing a heat insulator at the center or both ends of the metal strip in the width direction and subjecting it to heat input treatment.

As mentioned above, when thermosetting resins with different adhesive strengths are applied, the solvent is removed by uniform heating (heat input) during preheating, and then the other metal strip is placed on the resin surface and crimped. Then, as described above, by placing a heat insulator at the center or both ends in the width direction of the metal strip depending on the properties of the resin and heating it, it is possible to uniformly crosslink and improve the distribution properties and adhesion.

(Example) Example 1 In FIG. 1, the metal strip 2 is rewound from the rewind reel 1,
A conductive filler-added resin was applied to the center or both ends of one side of the metal strip 2 in the width direction, and a filler-free resin was applied to the other areas using the resin coating device 3.

Next, the metal strip 2 is led to a preheating furnace 4, and if the central part in the width direction is to receive more heat than both ends, as shown in FIG. (Increase the heat input in the center.

In addition, if more heat is input to both ends of the metal strip 2 than to the center in the width direction, one end and the other end of both ends are exposed alternately with a heat insulator 5 as shown in FIG. )
Thus, more heat was input to both ends of the metal band 2 in the width direction than to the center.

After inputting heat in this way and removing the solvent in the resin uniformly in the width direction of the metal strip 2, the heater 6a in the latter stage uniformly inputs heat to the whole, and then leads to the pressure roll 7, and the other metal strip 2a is wound. It is rewound from the return reel 1a, guided to the pressure bonding roll 7, placed on the resin surface of the metal strip 2, and crimped with uniform adhesive strength in the width direction to form a resin sandwiched metal strip 9. Thereafter, it is cooled in the cooling device 8. , and was wound onto a take-up reel 10 as a product.

In addition, when thermosetting resins with different adhesive strengths, crosslinking times, etc. are applied to the center and both ends of one side of the metal strip 2 in the width direction using the coating device 3, heat input (heating) is performed in the preheating furnace 4 as described above. Then, it was crimped to the other metal band 2a.

The resulting resin sandwich type metal plate has uniform adhesive strength,
It had excellent vibration damping properties.

Example 2 In FIG. 4, the heat input treatment at the front stage of the preheating furnace 4 of Example 1 is arranged as a heating furnace 11 after the pressure roll 7, and the coating device 3 is used to apply thermosetting resins with different adhesive strengths and crosslinking times. After applying the resin to the center and both ends of one side of the metal strip 2 in the width direction, heat was uniformly applied to the metal strip 2 using the heater 6a of the preheating furnace 4 to remove the solvent in the resin.

Next, the metal band 2a was pressed with a pressure roll 7 to form a resin sandwich type metal band 9, and then subjected to the treatment shown in Example 1 in FIGS. 2 and 3 in the heating furnace 11.

The resulting resin sandwich type metal plate has uniform adhesive strength,
Provides excellent vibration damping properties.

(Effect of the invention) The present invention improves the adhesive strength of resin sandwich type metal strips (plates),
It is possible to uniformly impart vibration damping properties, thereby achieving excellent effects such as improving the yield of finished products and increasing the commercial value.

[Brief explanation of the drawing]

FIG. 1 is an overall explanatory diagram of an embodiment of the present invention, FIG. 2 is an explanatory sectional view of a preheating furnace, FIG. 3 is an explanatory plan view, and FIG. 4 is an overall explanatory diagram of another embodiment. 3: Resin coating device 4: Preheating furnace 7, pressure roll 8: Cooling device Diagram L! J Cold immediate fold 1 Figure 2

Claims (1)

[Claims] 1. Apply a resin to one side of the metal strip, guide it to a preheating furnace, place heat insulators at both ends of the metal strip in the width direction, heat the resin at the center in the width direction, and heat the resin at the center of the metal strip in the width direction. A method for manufacturing a resin sandwich type metal plate, which comprises placing a metal strip on a resin surface and crimping it. 2. Apply resin to one side of one metal strip, guide it to a preheating furnace, place a heat insulator in the center of the metal strip in the width direction, heat the resin at both widthwise ends, and apply the other metal strip to the resin surface. place,
A method for producing a resin sandwich type metal plate characterized by crimping. 3. Apply resin to one side of the metal strip and heat it in a preheating furnace. Place the other metal strip on the resin surface and press it. Place heat insulators at both ends of the metal strip in the width direction. A method for manufacturing a resin sandwich type metal plate, characterized by heating the central part. 4. Apply resin to one side of the metal strip and heat it in a preheating furnace, place the other metal strip on the resin surface, and after crimping, place a heat insulator in the center of the metal strip in the width direction, and heat it at both ends in the width direction. A method for producing a resin sandwich type metal plate, the method comprising heating a portion of the metal plate.