JPH02192938A - Resin sandwiched metal plate - Google Patents

Abstract

PURPOSE:To improve the vibration damping properties as well as the weldability of metal plate by a structure wherein resin added with electro-conductive filler is arranged at both end parts in the longitudinal direction of metal strip and resin with no electro-conductive filler being added is arranged at the intermediate part in the same direction. CONSTITUTION:The metal plate concerned has a constitution arranging resin 2 added with filler at both end parts in the longitudinal direction of metal strips 10 and resin 2a with no filler added is arranged at the intermediate part in same direction. As the metal plate being used, steel plate, aluminum plate, stainless steel plate and the like are example. As the resin being used, polyester, polyethylene, nylon and the like are exampled. As the electro-conductive filler, any electro-conductive filler such as filler made of iron, nickel, aluminum and the like will do. At the time of manufacturing of a container-like part or the like, its cylindrical part is formed out of the intermediate part of the plate and its upper and lower flanges are formed out of both the end parts of the plate so as to be able to weld the flanges to separate members. At the same time, the resultant part is excellent in the adherence between the metal and the resin and the vibration damping properties in comparison with a container-like part made of a plate wherein its intermediate part, to which no welding is performed and only a resin added with filler is arranged.

Description

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

(Prior technology) For example, iron powder, nickel powder, carbon powder, stainless steel powder, etc. are added as conductive fillers into the resin of resin sandwich type metal plates to impart conductivity and ensure weldability. It is known that
5142, etc.).

Such a conductive filler is arranged on the entire surface.

Therefore, weldability is good in any range.

(Problem to be Solved by the Invention) For example, when manufacturing a container-shaped part, etc., a body is formed, flanges are formed above and below the body, and the flange and another member are welded. There is.

In such a case, the conductive filler-added resin may be placed at both ends in the rolling direction of the steel sheet, and the filler-free resin may be placed at the center.

Further, if the filler-added resin is placed in the non-welded area, it is disadvantageous because the adhesion between the metal and the resin and the vibration damping properties are slightly inferior to the filler-free resin.

In addition, the filler is wasted, and especially when an expensive filler such as nickel is used, the cost increases significantly.

The present invention has been made to advantageously solve these drawbacks.

(Means for Solving the Problems) The gist of the present invention relates to a resin sandwich-type metal plate in which a conductive filler-added resin is arranged at both longitudinal ends of the metal band and a conductive filler-free resin is arranged in the central part. It is something.

In the present invention, for example, resin supply paths are divided into the center and both ends in the width direction of the resin table, and these supply paths are selectively applied to apply resin from the table to one side of one metal plate via a roll. Then, the other metal plate is placed on the resin surface and crimped to form a resin sandwich-type metal plate.

For example, if you want to impart weldability to only the top and bottom of a container-shaped part, you can supply conductive filler-added resin to both ends of the resin table, and filler-free resin to the center. The resin is applied to the surface of one metal plate via a roll, then the filler-added resin 2 is applied to the other side, and the filler-free resin 2a is arranged in the center to form a resin sandwich type metal plate.

In addition, if resin is applied to both ends of the steel plate, some of the resin may flow out from both ends during transportation, storage, etc. and adhere to the surface edges of the product, impairing quality. It is preferable to arrange edge knives at both ends of the roll, etc., remove the resin at both ends, and leave approximately 10 mm of both ends of the steel plate unpainted.

Next, as the metal plate (strip) of the present invention, for example, a steel plate, an aluminum plate, a copper plate, a titanium plate, a tin plate, a stainless steel w4
Temporary etc. can be used, and the plate thickness is 0.1 to 1
, Oa*, As the resin, for example, commonly used polyester, polyethylene, nylon, etc. can be used, and the resin layer thickness may be 20 to 60 μm.

The conductive filler may be any material as long as it is conductive, such as iron, nickel, aluminum, etc., and the particle size is as follows:
For example, it is preferable to use a material that is thicker than the resin and make it the same thickness as the resin when crimping the metal plates so that it can contact the front and back metal plates to ensure conductivity.

Both ends of the resin sandwich type metal plate are made of conductive filler-added resin, and the conductivity can be reliably improved with a filler addition amount of 10 to 40%. Although the distance varies depending on the use, it is preferably 40 to 90 meters inward from the end of the metal plate.

Next, an example of manufacturing the metal plate of the present invention will be given.

2 and 3, a tank 1 is filled with conductive filler-added resin 2, another tank 1a is filled with conductive filler-free resin 2a, and the resin is placed at both ends in the width direction of the resin table 3. The filler-added resin 2 is supplied from the supply path 4 to both ends of the table 3 via a pump 5, a valve 6, and a nozzle 7.

On the other hand, filler-free resin 2a is supplied to the center of the table 3 from a resin supply path 4a arranged at the center in the width direction of the resin table 3 via a pump 5a, a valve 6a, and a nozzle 7a.

The resin 2.2a supplied to the table 3 is transferred to the intermediate roll 8,
It is applied to a steel plate (strip) 10 via a coating roll 9, and the filler-added resin 2 is applied to both ends of the steel plate 10, and the filler-free resin 2a is applied to the center.

The amount of coating is adjusted by adjusting the distance between the intermediate roll 8 and the coating roll 9. In the figure, 11 is a separator that separates the resins 2 and 2a. 12 is an edge knife for leaving both ends of the steel plate 10 unpainted (resin). be.

(Example) Next, examples of the present invention will be listed together with comparative examples.

Example 1) W4 plate thickness: 0.45 mm (common thickness on both sides) 2) Resin;
Polyethylene type (11 thickness 43μ) 3) Conductive filler:
Addition of nickel powder to resin: 25%, average particle size: 60 μm (43 μm was used when crimping the metal plate) 4) Resin sandwich type metal plate (1) Medium 860 mm (2) Resin distribution with conductive filler WMM 80 cm each inside from both longitudinal ends of the metal plate (continuously arranged in the longitudinal direction) 5) Loss factor: 0.270 (50°C) Comparative example Conductive filler-added resin was arranged on the entire surface under the same conditions as the above example. It was made into a resin sandwich type metal plate.

This loss factor was 0.220 (50°C).

In this way, the vibration damping properties of the resin sandwich metal plate can be improved.

(Effects of the Invention) By doing so, it is possible to improve the weldability of the resin sandwich type metal plate and also improve the vibration damping performance.

Further, excellent effects such as improving the adhesion between the resin and the metal plate, saving filler, and lowering costs can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a resin sandwich type metal plate of the present invention (A is a plan view, and the mouth is a cross-sectional view in the width direction), and FIGS. 2 and 3 are illustrations showing an example of a manufacturing apparatus for the metal plate of the present invention. It is a diagram. Agent Patent Attorney Tatsuo Chanoki (A) (B)

Claims (1)

[Claims] A resin sandwich type metal plate with conductive filler-added resin placed at both longitudinal ends of the metal band and conductive filler-free resin placed in the center.