JPH03126542A - Manufacture of resin sandwiched metallic plate - Google Patents

Abstract

PURPOSE:To improve the quality and to economize the material by forming both end sections in the cross direction of metallic plates in a projecting curved shape toward end sections, arranging a resin between the metallic plates and compression-bonding the resin. CONSTITUTION:The spaces of metallic plates 1a, 1b at both end sections are made larger than central sections in the cross direction of the metallic plates 1a, 1b in a resin 2 at the time of compression bonding by forming both end sections of the metallic plates 1a, 1b in projecting curve R shapes toward end sections, thus collecting the resin 2 in the large space sections, then preventing outflow to the outside. A method, in which both end sections are trimmed and both end sections are treated under light pressure by a roll, or a method, in which the metallic plates are carried into a resin sandwich type metallic plate production line without trimming both end sections after rolling because an edge drop is generated on the continuous rolling of the metallic bands and the edge section shape takes a projecting curved shape suitable for collecting the resin, is adopted as a method in which both end sections of the metallic plates 1a, 1b are formed in the projecting curved shapes toward the end sections, thus obviating the outflow of the resin.

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) A method for manufacturing a resin sandwich type metal plate generally involves applying a resin to one side of one metal plate (strip), placing the other metal plate (strip) on the resin surface, and bonding with pressure. Alternatively, a film-like resin is inserted between both metal bands and the two metal bands are similarly pressed and bonded. (Unexamined Japanese Patent Publication No. 62-53833, etc.) (Problem to be Solved by the Invention) By the way, in the production of such a resin sandwich type metal plate, a part of the resin becomes metal Fi, (band) during pressure bonding.
This has the disadvantage that it flows out from both ends and adheres to the surface of the metal plate, deteriorating the quality.

The present invention eliminates these drawbacks and provides a method for manufacturing a sandwich-type metal plate that improves quality and saves materials.

(Means for Solving the Problems) The present invention is characterized in that both ends of the metal plate in the width direction are formed into a convex curved shape toward the ends, and a resin is disposed between the metal plates, or that one of the metal plates in the width direction A resin sandwich type metal plate, characterized in that a resin is placed between metal plates with both ends having a convex curve shape toward the end and the other metal plate having both ends in the width direction having a straight line shape, and the resin sandwich type metal plate is bonded under pressure. This is a manufacturing method.

(for production) The present invention will be described in detail below along with its effects.

In the conventional manufacturing method, as shown in Fig. 1, metal F
i, (Place resin 2 between bands H1a and Ilb, roll 3
When pressure bonding is performed with a and 3b, a part 2a of the resin 2 is removed from the end.
flows out and adheres to the surfaces of the metal plates 11a and llb. This is because both ends of the metal plates (bands) lla and Ilb are formed in a straight line, so that the resin flows out of both ends of the metal plates during pressure bonding.

In the present invention, by using a metal plate (band) having a convex curved shape at both ends in the width direction of the metal plate to form a resin sandwich type metal plate, the resin can be prevented from flowing out during pressure bonding. This aspect will be explained with reference to the drawings.

In Fig. 2, both ends of the metal plates (bands) la and lb (same as the other end not shown in Fig. 2) are formed into a convex curved R shape toward the end, and pressure crimping is performed. resin of time 2
Since the gap between the metal plates 1a and lb at both ends is larger than that at the center in the width direction of the metal plates 1a and lb, the resin 2a stays in this large gap and does not flow out to the outside.

Also, as shown in Fig. 3, one metal plate in Fig. 2 (
Both ends of only the band) la have a curved R shape that is convex toward the end, and the metal plate (band) la, lbO is at both ends compared to the center in the width direction! It is also possible to make the gaps a and lb large so that the resin 2a under pressure stays in this gap to prevent it from flowing out.

Next, as a method for forming both ends of the metal plates (bands) Ia and Ib into a convex curved shape toward the ends, for example, after trimming (shearing) both ends, both ends are lightly rolled with a roll, or Edge drops occur during continuous rolling of metal strips, and this edge shape exhibits a convex curve shape suitable for holding resin, so resin sandwich type metal plate (strip) production line can be used without trimming both ends after rolling. By transporting the resin into the container, it is possible to reliably prevent the resin from flowing out as described above.

As the resin sandwich type metal plate, as generally manufactured, the metal plate may include, for example, a steel plate, a stainless steel plate,
It is an aluminum plate, a copper plate, etc., and as the resin, nylon, polypropylene, viscoelastic resin, etc. can be used.

(Example) Next, Examples of the present invention are listed in Table 1 along with comparative examples.

Note: The metal strip is a hot-rolled steel plate with a body thickness of 1.2 mm, rolled to 0.8 mm by continuous cold rolling, and further reduced to 0.8 mm by temper rolling.
Roll it to 4 mm, use it without trimming both ends of the wire strip, apply 43μ of resin to one side of one copper strip using a solvent-based roll over the entire width, rearrange the other copper strip on the resin surface, and use it without trimming. Bonding was carried out under pressure at °C.

Note 2: In Example 1, a steel strip with a convex curved end (edge drop) was used without trimming both ends after both steel strips were rolled.

In Example 2, one of the steel strips had a convex curved shape (
For the other steel strip, the edges were trimmed and a straight steel strip was used.

In the comparative example, both ends of the steel strip are trimmed after rolling, and a straight steel strip is used.

(Effects of the Invention) As explained above, according to the method of the present invention, in the production of a resin sandwich type metal plate (strip), resin is reliably prevented from flowing out from both ends, quality deterioration due to resin stains is prevented, In addition to improving quality, there is no wastage of resin due to outflow, and excellent effects such as cost reduction can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a conventional method for manufacturing a resin sandwich type metal plate, FIG. 2 is a front view showing a first embodiment of the method of the present invention, and FIG. 3 is a front view of a second embodiment of the method of the present invention. FIG. la. b. 11a. 11b...Metal plate (band) 2゜a...Resin a 3b...Roll. R...Convex curve

Claims (2)

[Claims] (1) A method for manufacturing a resin sandwich type metal plate, characterized in that both ends of the metal plate in the width direction are formed into a convex curved shape toward the ends, a resin is placed between the metal plates, and the metal plates are bonded under pressure. (2) Resin is placed between metal plates with one metal plate having both ends in the width direction having a convex curved shape toward the end, and the other metal plate having both ends in the width direction having a straight shape, and bonding with pressure. A method for manufacturing a resin sandwich type metal plate characterized by: