JPS5939542A - Manufacture of passage preventive body of electromagnetic wave - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a structure in which a coating layer of a magnetic material or a conductive material with good permeability is closely formed on one or both surfaces of an insulating sheet, and a laminated sheet is formed to prevent the passage of electromagnetic waves. It also relates to something used as an energized heating element.

A conventional insulator such as a plastic sheet (including film, hereinafter referred to as a sheet) and a separately manufactured pure iron film with magnetic conductivity or copper film with good conductivity are used. Many methods are known for producing plastic sheets coated with iron or copper films, or plastic sheets coated with a pure iron film on one side and a copper film on the other, or laminated laminates thereof. be. For coating or laminating, a method is used in which two sheets or films are coated or bonded with an adhesive or heated and pressed to form an adhesive coating layer. What can be obtained through these US-based laws is not very close;
It has the disadvantage that it is dimensionally thick and it is difficult to obtain a bonding surface with high metal purity.

In view of these current circumstances, an object of the present invention is to provide a method to which a metal electrolytic deposition method is applied. For this purpose, the deposited metal formed on the surface of the cathode roll was peeled off from the roll surface to form a metal film, which was immediately brought into contact with the plastic sheet surface, overlapped, and passed between rolls under pressure to coat one side with a metal film. Manufacture sheets.

Similarly, the plated metal formed on the surface of another cathode roll by applying the method of electrolytic deposition of other metals is peeled off from the roll surface to form another metal film, and then brought into contact with the plastic sheet surface. The metal film is layered, passed between rolls and pressed to produce a sheet covered with another metal film.

(3) Next, the present invention will be explained by showing an example. 1st
The figure shows a side view of the arrangement of an embodiment of the present invention, and Figure 2 shows a top view of a high magnetic conductivity metal film with laser kerfs.
Figures 3 and 4 show cross-sectional views of one type of product.

In FIG. 1, the electroplating tank 10A includes a liquid tank connected to the anode of the power source E by a circuit 31A, and a high magnetic conductivity metal film (in this case, a pure metal film is used as an example) connected to the cathode of the power source E and the circuit 31B. As shown in the figure, two cylindrical cathodes and an electroplating solution 21 containing iron salt dissolved therein are used to deposit and form a pure iron film with a uniform and constant thickness on the surfaces of the two cylindrical bodies. Immerse and rotate in the direction of the arrow. A pure iron layer Fel is deposited by electrolytic deposition, and the thickness is gradually increased until a predetermined iron film thickness is obtained at the surface level AA.
After forming one layer, peel it off from the surface and make pure iron film 3.
As a person, it is sandwiched between four rolls and 4B, pulled between guide roll 9A and five sandwiching rolls and 5B, passed through the guide roll 9B surface, and sent between pressure rolls 6A and 6B.

(4) A laser LA is placed between the roll 9A and the roll 5B, and as shown in FIG. 2, the diagonal and zag through grooves 23A and 23B as shown are bored in the iron film 3A with laser light. An iron film 3B is formed.

10,000, a sheet 3 of plastic (an example of an insulator is a resin film such as polypropylene film) is pulled out from the winding drum 2, and is sandwiched between rolls 7N and 7B. First crimping roll 6 people and 6
Send it between B.

The first crimp roll 6 and 6B have plastic on top.
The sheet 3 is fed in two layers with an iron film 3B underneath, and is crimped between these rolls. In this way, one side of the sheet 30 forms an integral sheet 23 with the iron film adhesion layer provided with the through grooves 23A and 23B, and the guide rolls 90, 9
Passing through the surfaces D, 9E and 9F, the second pressure roll 16
Input between A and 16B.

On the other hand, a conductive metal film is formed in a tank 10B, and a circuit 32A is connected to the anode of a power source E in the tank 10B in the same manner as in the formation of the high magnetic conductivity metal film 3A, and a cylindrical cathode 12A and a conductive metal (Currently, we will explain using copper as an example.) Electroplating liquid 22 that dissolves copper salt to form a film.
The above-mentioned 12 cylindrical bodies are immersed in the cylindrical body, and after forming the precipitated copper on the surface, they are rotated in the B direction to reach a predetermined thickness up to a certain level BB, and the copper film 13A that has been peeled off on the BB plane is rolled. Sandwiched between 14A and 14B and sent out, roll 15A
and 15B, through the surface of the guide roll 19A, and then fed between the pressure rolls 16A and 16B.

The sheet 23 is fed above and the copper film 13A is fed between the pressure rolls 16A and 16B, and the sheet 33 is formed by pressure bonding between both rolls. Furthermore, pressure roll 17
It is sandwiched between A and 17B and crimped, and the guide roll 19B is
After that, it is wound onto a winding roll 30.

The sheet 33 wound on the roll 30 is, for example, the sheet 1 whose cross section is shown in FIG. That is, a highly conductive pure iron film 3A with through grooves 23A and 23B shown in FIG. 2 is fixed on one side of the plastic sheet 3, a highly conductive copper film 13A is fixed on the other side, and It is made by overlapping and integrating layers. This is an integrated laminate consisting of a surface layer 13A with good electrical conductivity, an insulating intermediate layer 3, and a surface layer 3N that is conductive, resistive, and has high magnetic conductivity.

Although I will not explain it in detail, the laminate sheet 11 in Figure 4
In this example, two of the sheets 1 shown in FIG. 3 are bonded together with a copper surface layer 13A, laminated and pressure bonded. The center layer is made of highly conductive steel, the insulating sheet 3 is provided on both sides of the steel, and the surface layer is provided with through grooves 23A and 23B having high magnetic permeability, conductivity, and resistance as shown in FIG. It is integrated and fixed.

The iron layer has been described as having grooves 23& and 23B as shown in FIG. 2, but if a layer without grooves is required, three films without grooves are used. Also, a combination sheet made of iron, plastic, and copper was described;
Steel is fixed to one or both sides of plastic.
It is also possible to obtain other combinations, such as a steel film in which grooves as shown in FIG. 2 are formed and fixed. Many combinations can be used, such as nickel or other magnetically conductive metal instead of iron, aluminum or other highly conductive metal instead of copper, and paper, nylon sheet, Teflon sheet instead of plastic. All of them can be fixed immediately after electrolytic deposition without intervening impurities such as surface oxidation, and can be used stably for a long period of time.

Dimensionally, thicknesses of each layer ranging from 20 to 50 microns can easily be produced by the method described above.

As already explained, the negative side is a high magnetic permeability metal film, and the insulating sheet (including the film is called a sheet).
A single type (Fig. 3) or a laminated type (Fig. 4) of a metal film with a good conductivity on the other side is extremely effective for the passage of electromagnetic waves, especially as a noise prevention body. It brings about a great effect. Furthermore, it can be turned into a heating body by being energized, and can be used both as an electromagnetic wave passage prevention body and as a heating body. Grooves 23A and 23 shown in FIG.
When B is formed, the heat generation effect increases because current flows through Zaku Zaku 1.

The invention described above forms a first laminate in which a layer of high magnetic permeability metal is fixed to one side of an insulator to a thickness of about 20 to 50 microns, and a layer of the same thickness is fixed to the other side of the insulator. 2
A layer of highly conductive metal with a thickness on the order of 0 to 50 microns is bonded to form a second laminate that integrates these bonded layers.

The first laminate, the second laminate, and the like are laminated to form a third laminate. The highly permeable metal layer can be used as a resistor or a surface heating element, and can be provided with grooves (FIG. 2) to enhance its effectiveness.

The laminate of the present invention can be used for road snow removal materials or wall materials to prevent interference electromagnetic waves emitted from inside and outside the room.

[Brief explanation of the drawing]

FIG. 1 is a side view of the arrangement of an embodiment of the present invention. FIG. 2 is a partially enlarged plan view illustrating an example of a metal film. FIGS. 3 and 4 are illustrative cross-sectional views of products according to the present invention. 1.11 Product E Power supply 2 Insulation (film) sheet roll 2 people, 12 people Cathode cylinder 10A, IOB Tank 2
1, 22 Electroplating liquid 3 Insulating sheet 30s removal roll 3A, 13A Metal film 23, 33
Layer fixing sheet LA Laser A, A, BB
Film peeling level 6A and 6B, 16A and 16B, 17A and 17B (pressure fixation) Crimping rolls with 4 people and 4B, 5 people and 5B, 14A and 14B, 15 people and 1
5B clamping (delivery) roll patent applicant Inoue Japax Institute Co., Ltd. Agent Patent attorney Nakanishi −

Claims (1)

[Claims] l One or more laminates in which a layer of a high magnetic conductivity metal film or a layer of a conductive metal film is fixed to one or both sides of an insulating sheet, which can generate heat by being energized. Furthermore, in the formation of a material capable of preventing electromagnetic wave interference, the above-mentioned high magnetic permeability metal layer is deposited on the surface of the cylinder by electrolysis between the anode in the electroplating solution bath and the cathode cylinder facing the bath. Alternatively, a method for producing an electromagnetic wave passage preventive body, characterized in that the conductive metal layer is peeled off and immediately adhered to the other side of the laminate of the insulating sheet. 2. A method for manufacturing an electromagnetic wave passage prevention body according to claim 1, wherein one side of the laminate is a pure iron precipitated layer with diagonal grooves on the surface of a high magnetic conductivity metal layer. . 3. The method of manufacturing an electromagnetic wave passage preventive body according to claim 1, wherein copper is used as the conductive metal to form one side of the laminate. 4. A method for manufacturing an electromagnetic wave passage preventive body according to claim 1, wherein a laminate is formed using a plastic sheet as an insulator.