JPS58133397A - Single-surface composition-coatd steel plate - Google Patents

Abstract

PURPOSE:To contemplate the improvement of sound isolation and lightweight by bonding a mild steel plate and a coated steel plate with a resin layer into three-layered structure. CONSTITUTION:The titled steel plate comprising the three-layered structure of a mild steel plate 1, a coated steel plate 2, e.g. prepared by coating a mild steel plate with zinc or tin, and a resin layer 3 (e.g. polyethylene or ADS resin) interposed therebetween. This composite steel plate is improved in sound isolation, since vibration transmitting through the steel plate is absorbed by the resin layer 3. In addition, its specific gravity as a whole is made small because of the presence of the resin layer 3 having small specific gravity.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nine-sided plated steel plate having a multilayer structure. Conventional single-sided plated steel plate.

Either one side of the steel plate is plated, or both sides of the steel plate are plated and the plated layer is removed by grinding the other side. This conventional single-sided plated steel plate.

The condition of the surface without the plating layer is less uniform than that of ordinary steel sheets, and as a result, paintability, weldability,
There was a problem that there were many variations in quality regarding pressability. In addition, since conventional single-sided plated steel sheets are entirely made of metal, their vibration absorption characteristics or specific gravity are almost the same as those of ordinary steel sheets, which poses problems in terms of vibration absorption and light chains.

The present invention overcomes the aforementioned problems of conventional single-sided plated steel sheets. That is, one object of the present invention is to provide a single-sided plated steel plate whose surface has the same quality as a normal copper plate. Another object of the present invention is to provide a single-sided plated copper plate having vibration absorption properties. Still another object is to provide a single-sided plated steel plate that has a lower specific gravity than ordinary steel plates. These objectives were achieved by creating a three-layer structure in which a plated steel plate is used on the side that has the plated layer, a normal steel plate is used on the other side that constitutes the copper plate, and both are joined with a resin layer. Ru. That is, the composite single-sided plated steel sheet of the present invention is characterized by comprising a resin layer, an ordinary steel sheet laminated to one side of the resin layer, and a plated steel sheet laminated to the other side of the resin layer.

Here, the ordinary steel plate means an ordinary polished steel plate, cold-rolled steel plate, etc. The thickness of ordinary steel plates can be selected depending on the application, whether thick or thick. Also, plated steel sheet refers to a steel sheet that is galvanized or tin-plated on one or both sides of an ordinary steel sheet. The thickness of this plated steel plate can also be arbitrarily selected depending on the application.

The resin layer is preferably made of thermoplastic resin such as polyethylene or ABS resin. Other resins such as rubber can also be used depending on the purpose. Further, the ratio of the thicknesses of the ordinary steel plate and the resin layer plated steel plate can be arbitrarily selected. For example, by increasing the thickness of the resin layer compared to other plated steel plates or ordinary steel plates, a composite single-sided plated steel plate with a low specific gravity can be obtained. Furthermore, by making the thickness of the resin layer very thin, it is possible to produce a composite single-sided plated steel plate that has almost the same characteristics as a conventional single-sided plated steel plate, except for surface quality.

Since the composite single-sided plated steel sheet of the present invention has a resin layer interposed in the intermediate layer, vibrations transmitted through the steel sheet are absorbed by the resin layer, thereby imparting vibration absorption characteristics. Therefore, it becomes a steel plate with excellent soundproofing and sound absorption properties. Furthermore, by making the resin layer thicker than that of other ordinary steel sheets or plated steel sheets, the specific gravity of the steel sheet as a whole can be reduced. Therefore, it is possible to achieve excellent sound absorption properties and to reduce the amount of noise. This will be explained below using examples.

Example 1 FIG. 1 shows a partial cross section of the composite single-sided plated steel plate of the first example. This composite single-sided plated steel plate has 9 ordinary polished steel plates and 1
A conventional galvanized steel sheet 2 having galvanized layers 21 on both sides is joined with a resin layer 3. In other words, the resin 113 is formed into a sandwich inch shape using a common steel plate 1 and a plated steel plate 2. In this embodiment, the ordinary steel plate 1 and the plated steel plate 2 have approximately the same thickness, and the resin layer 3 has a thickness that is approximately ⅓ of the thickness of each steel plate. The composite single-sided plated steel sheet of this first embodiment is a common steel sheet 1.
It has a plated layer 21 formed of a plain steel plate surface and a plated steel plate 2. Therefore, the steel plate surface of this composite single-sided plated steel plate has the same performance as a normal ordinary steel plate, and has the same paintability, formability, etc. as a normal ordinary steel plate. Further, as a matter of course, the plating layer also has the same quality as a normal plated steel sheet. Furthermore, since the resin layer 3 is interposed in the intermediate layer, vibrations propagating to this steel plate are effectively absorbed, and the steel plate has vibration damping properties.

Example 2 FIG. 2 shows a partial cross section of a composite single-sided plated steel plate which is a second example of the present invention. This composite single-sided plated steel plate has a much thinner resin layer than the composite single-sided plated steel plate of the first embodiment. That is, this composite single-sided plated steel plate is made by pasting together an ordinary ordinary steel plate 4 and a plated steel plate 5 having galvanized layers 51 on both sides with a resin adhesive 6. One side of this composite plated steel plate is a normal ordinary steel plate 4
, and the other surface is the surface of the plated steel plate 5.

The properties and performance of the steel plate surface on the steel plate 4 side are the same as those of a normal ordinary steel plate. Furthermore, the properties of the plated surface are also the same as those of plated steel sheets.

Since the resin layer 6 of the composite single-sided plated steel sheet of this embodiment is very thin, it can be handled almost the same as a conventional single-sided plated steel plate in terms of moldability and the like.

Example 3 This is the third example of the present invention. Figure 3 shows a partial cross section of a composite single-sided plated steel plate. This composite single-sided plated steel plate is made by joining a film-shaped ordinary steel plate 7 and a film-shaped plated steel plate 8 having galvanized layers 81 on both sides to each side of a relatively thick resin 9. A part of this composite single-sided plated steel plate has the same steel plate surface as a normal steel plate, and the other side has a surface made of the same plating layer as a normal plated steel plate. Therefore, it has the same surface configuration as a normal single-sided plated steel plate.

The composite single-sided plated steel plate of this example has a resin layer 9, which is an intermediate layer, which is very thick compared to other ordinary steel plates 7 and 8, so this single-sided plated steel plate has a specific gravity of 0 compared to a normal single-sided plated steel plate. is very small.

Therefore, the composite single-sided plated steel sheet of Example 9 has vibration damping properties and is lightweight.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of a composite single-sided plated steel plate according to the first embodiment of the present invention, FIG. 2 is a partial sectional view of a composite single-sided plated steel plate according to the second embodiment of the present invention, and FIG. FIG. 7 is a partial cross-sectional view of a composite single-sided plated steel sheet according to a third embodiment of the invention. Code 1 in the figure,
4.7 is ordinary steel plate. 2. 5.8 is a plated steel plate. 3 and 6.9 are resin layers. 21.51.8'1. is a plating layer. ),, Patent applicant Toyota Motor Corporation Representative Patent Attorney Dai Hiroshi Kawa Diagram 1 Procedural Amendment (Method) % Formula % 2. Name of the invention Composite single-sided plated steel plate 3. Relationship to the case making the amendment Patent applicant 1 Toyota-cho (320) Toyota City, Aichi Prefecture Toyota Motor Corporation Co., Ltd. Representative Mori 1
) Toshio 4, Agent: 3-3-4 Meieki, Nakamura-ku, Nagoya, Aichi Prefecture 450
Kodama Building (Telephone: <052> 583-9720) (Delivery date: May 251, 1982) 6. Application subject to amendment - and specification 7. Application and specification clearly stated in type print (black) of content of amendment I will submit the document. 8. Attached documents (1) Application form (one original and one copy each) (2) Specification one copy or more

Claims (1)

[Claims] (1) A composite single-sided plated steel plate comprising a resin layer, a common steel plate laminated to one side of the resin layer, and a plated steel plate laminated to one side of the resin layer.