JP2004167832A - Method for welding coating material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for welding a coating material which forms gauze using the coating material for corrosion proof. <P>SOLUTION: The coating material 3 is produced from a metal core material 1 and a synthetic resin film 2 which coats the core material and is incorporated with a granular or fibrous electro-conductive material 4 of a metal such as stainless steel. A welding current is applied to the crossing overlap part or the joining contact part of the coating material while being pressurized. By the melting of the synthetic resin film associated with the heat generation of the electro-conductive material, simultaneously with the welding between the resin films, the welding 6 between the core materials is carried out. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for welding a coating material in which a synthetic resin film is provided by extrusion on a metal core material.
[0002]
[Prior art and its problems]
BACKGROUND ART A welded wire mesh in which a large number of parallel column wires are crossed with a large number of parallel row wires and an intersection of the column wire and the row wire is welded is used for various applications.
[0003]
However, since there is no anticorrosion property, the anticorrosion property is imparted to the welded metal net after coating by painting or plating, so that the cost is significantly increased, and there are problems such as peeling of the coating film and weather resistance.
[0004]
Therefore, the problem of the above-described anticorrosion treatment can be eliminated by using a covered wire in which a synthetic resin is provided by extrusion on a metal core (wire).
[0005]
However, since the covered wire cannot be welded, in the case of a wire mesh, it is limited to a net making machine.
[0006]
Therefore, an object of the present invention is to provide a method for welding a coating material in which a synthetic resin coating is provided on a core material by extrusion.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a metal core material and a coating material that covers the core material with a synthetic resin mixed with a granular or fibrous conductive material made of metal such as stainless steel. Manufacturing and applying a welding current under pressure to the overlapping portions or joining contact portions where the coating material intersects, and melting of the synthetic resin film accompanying the heat generation of the conductive material and simultaneously welding the synthetic resin films to each other. A welding method of a coating material, characterized in that core materials are welded to each other, is adopted.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the accompanying drawings.
[0009]
In the embodiment of the present invention, as shown in FIG. 1, FIG. 2 and FIG. 5, a covering material 3 is manufactured from a metal core material 1 and a synthetic resin film 2 that covers the core material 1 by extrusion. .
[0010]
An appropriate amount of a conductive material 4 that generates heat when a granular or fibrous metal current such as stainless steel is applied is mixed in the synthetic resin film 2 for coating.
[0011]
The core material 1 includes, for example, a strip-shaped metal plate as shown in FIG. 3 in addition to an iron wire as shown in FIGS. 1 and 2 for forming a wire mesh.
[0012]
The material of the synthetic resin film 2 is, for example, polyethylene, which is tough, has appropriate elasticity and flexibility, and is excellent in cold resistance and wear resistance.
[0013]
As is well known, the synthetic resin film 2 may be bonded to the core material 1 by utilizing the adhesiveness of the resin, or by using an adhesive.
[0014]
Next, a method of welding the coating material 2 will be described.
[0015]
First, as shown in FIG. 4, a large number of parallel row covering materials 3 are arranged on a surface plate (not shown) so as to form a metal mesh of a predetermined mesh. The cascade covering materials 3 arranged in parallel are placed.
[0016]
Next, all or predetermined intersections of the coating materials 3 in the horizontal and vertical rows are pressed down by an electrode pressing member (not shown) that also serves as a pressure as shown by arrows in FIG.
[0017]
Thereafter, a spot welding current is applied to the electrode holding member while maintaining the above holding.
[0018]
Then, the synthetic resin film 2 is softened by the heat generated by the conductive material 4 mixed in the coated synthetic resin film 2 by the applied current, and then melted. Weld 5 as shown.
[0019]
Then, the intersections of the vertical and horizontal covering materials 3 are welded, and the molten resin in the welded portions is pushed outward to escape, and the mutual contact between the two core materials 1 due to the opposing surface contact between the two core materials 1 is shown in FIG. The wire mesh is formed by welding 6 as shown.
[0020]
In addition, the required number of the coating materials 3 using the band-shaped plate on the core material 1 shown in FIG. 3 are arranged so that the opposing surfaces are in contact with each other, and while the contact portion is pressed, the spot welding current is applied under pressure in the same manner as described above. Apply.
[0021]
Then, in the same manner as described above, the synthetic resin film 2 is softened by the heat generation of the conductive material 4 in the portion to which the current is applied, then melted and welded, and the cores 1 are welded 6 to each other.
[0022]
【The invention's effect】
As described above, according to the method for welding a coating material of the present invention, a core material capable of melting and synthesizing a synthetic resin film on an overlapping surface where a coating material intersects or a parallel collective contact surface is extremely easily and easily welded. Weld each other.
[0023]
This eliminates the need for time-consuming processing such as the application of paint and plating to prevent rust, such as conventional welding wire mesh using wire, and the welding of the welded core with a synthetic resin film. There is no rust.
[Brief description of the drawings]
FIG. 1 is a perspective view of a coating material. FIG. 2 is a longitudinal enlarged front view of the same. FIG. 3 is a perspective view showing another coating material. FIG. 4 is a vertical sectional front view before welding. FIG. Vertical enlarged front view [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 Core material 2 Synthetic resin film 3 Coating material 4 Conductive material 5 Welding 6 Welding

Claims (1)

A covering material is manufactured with a metal core material and a synthetic resin film mixed with a granular or fibrous conductive material made of metal such as stainless steel while covering the core material, and overlapping or intersecting portions of the covering material are joined. A welding current is applied to the contact portion under pressure, and the core materials are welded simultaneously with the welding of the synthetic resin films by melting of the synthetic resin film accompanying the heat generation of the conductive material. Of the coating material to be welded.

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