CN213733841U

CN213733841U - Ultrathin copper-aluminum alloy composite plate strip

Info

Publication number: CN213733841U
Application number: CN202022128045.0U
Authority: CN
Inventors: 赵成威
Original assignee: Zhejiang Songfa Composite New Material Co ltd
Current assignee: Zhejiang Songfa Composite New Material Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-07-20
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses an ultra-thin copper aluminum alloy composite board area, including the composite board area body, a plurality of extension sections of one end fixedly connected with of composite board area body, a plurality of adaptation holes have been seted up to the other end of composite board area body, the composite board area body comprises aluminum alloy plate area substrate, aluminized layer, copper plate area, galvanizing coat, passivation layer and surface protection rete. The utility model discloses, can protect copper slab band not by oxidation through the galvanizing coat that sets up, before the galvanizing coat is damaged, the galvanizing coat plays the effect of isolated air, and the galvanizing coat is damaged the back, according to the primary cell principle, zinc is than copper activity, still can continue to play the guard action to the copper band, and zinc itself will be corroded, greatly reduced composite board area corrosion rate, improved composite board area's life.

Description

Ultrathin copper-aluminum alloy composite plate strip

Technical Field

The utility model relates to a composite board takes technical field, especially relates to an ultra-thin copper aluminum alloy composite board area.

Background

Copper and aluminum are important nonferrous metals, are widely used in the fields of industry, civilian use and the like, and have good electric conduction, heat conduction, corrosion resistance and bacteria resistance. Aluminum has good electric conduction and heat conduction performance, and compared with aluminum, copper is in short supply, aluminum is rich, the specific weight of aluminum is small, and the price is low. The copper and aluminum composite metal plate is a bimetal with aluminum as a base body and copper compounded on the outer layer, and is a novel conductor material and a novel decorative material which are formed by compounding high-quality conductivity and low-cost resources of aluminum, high chemical stability and low contact resistance of copper into a whole, the aluminum and copper composite metal plate strip integrates the respective advantages of copper and aluminum, the copper and aluminum composite metal plate strip is used for replacing the copper plate strip, and the aluminum plate strip is plated with copper, so that the copper and aluminum composite metal plate strip is widely applied to high-tech fields such as 4G network communication, military industry, aerospace, PC, IC, LED heat dissipation and the like, high-low voltage power transmission and distribution, electronic control automation and building decoration industries, and is a development direction and a research hotspot of the current new metal material.

Patent publication No. CN106670235B, this patent includes that the copper area hot dip aluminizes, cast-rolling, makes the compound slab band blank, then carries out anaerobic hot rolling compound with the aluminium alloy plate area substrate with the aluminized face of compound slab band blank, obtains copper aluminum alloy compound slab band, though this copper aluminum alloy compound slab band has realized good metallurgical compound, has solved the high temperature oxidation problem of copper, aluminium simultaneously, however, this copper aluminum alloy compound slab band's oxidation resistance has remained to promote, compound slab band live time is a long time, it is more or less can receive certain degree oxidation, thereby influence the use of compound slab band.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an ultrathin copper-aluminum alloy composite plate strip.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the ultra-thin copper-aluminum alloy composite plate strip comprises a composite plate strip body, wherein one end of the composite plate strip body is fixedly connected with a plurality of extension sections, the other end of the composite plate strip body is provided with a plurality of adaptive holes, and the composite plate strip body is composed of an aluminum alloy plate strip substrate, an aluminum-plated layer, a copper plate strip, a zinc-plated layer, a passivation layer and a surface protection film layer.

As a further description of the above technical solution:

the number of the extension sections is the same as that of the adapting holes, and the extension sections are matched with the sizes of the adapting holes.

As a further description of the above technical solution:

the aluminum-plated layer is arranged on the upper surface of the aluminum alloy plate strip substrate, the copper plate strip is arranged on the upper surface of the aluminum-plated layer, the zinc-plated layer is arranged on the upper surface of the copper plate strip, the passivation layer is arranged on the upper surface of the zinc-plated layer, and the surface protection film layer is arranged on the upper surface of the passivation layer.

As a further description of the above technical solution:

the thickness of the aluminum-plated layer is 0.02-0.08 mm, and the thickness of the zinc-plated layer is 0.05-0.2 mm.

As a further description of the above technical solution:

the thickness of the copper plate strip is 0.2-4.0 mm, and the grade of the copper plate strip is red copper, brass, bronze or cupronickel.

As a further description of the above technical solution:

the thickness of the passivation layer is 0.05-0.1 mm, and the thickness of the surface protection film layer is 0.1-0.2 mm.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the ultrathin copper-aluminum alloy composite plate strip has the advantages that the copper plate strip can be protected from being oxidized by the arranged zinc coating, the zinc coating plays a role in isolating air before the zinc coating is damaged, zinc is active compared with copper and can continue to play a role in protecting the copper plate strip according to the principle of a primary battery after the zinc coating is damaged, and the zinc per se is corroded, so that the corrosion rate of the composite plate strip is greatly reduced, and the service life of the composite plate strip is prolonged.

2. Compared with the prior art, the ultrathin copper-aluminum alloy composite plate strip has the advantages that the plurality of extension sections on one composite plate strip body are inserted into the corresponding plurality of adapting holes of the other composite plate strip body, then the plurality of extension sections are folded, so that the two composite plate strip bodies can be connected, and the operation is simple and convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of an ultra-thin copper-aluminum alloy composite plate strip provided by the utility model;

FIG. 2 is a schematic view of a layered ultrathin copper-aluminum alloy composite strip provided by the present invention;

fig. 3 is a schematic view of the utility model showing the folding of the extension section of the ultra-thin copper-aluminum alloy composite plate strip.

Illustration of the drawings:

1. a composite strip body; 2. an extension section; 3. an adapter hole; 11. an aluminum alloy plate strip substrate; 12. plating an aluminum layer; 13. a copper strip; 14. a zinc coating layer; 15. a passivation layer; 16. a surface protective film layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the utility model provides an ultra-thin copper aluminum alloy composite plate strip: the composite plate strip comprises a composite plate strip body 1, one end of the composite plate strip body 1 is fixedly connected with a plurality of extension sections 2, the other end of the composite plate strip body 1 is provided with a plurality of adapting holes 3, the composite plate strip body 1 is composed of an aluminum alloy plate strip substrate 11, an aluminum coating layer 12, a copper plate strip 13, a zinc coating layer 14, a passivation layer 15 and a surface protection film layer 16, the zinc coating layer 14 can protect the copper plate strip 13 from being oxidized, before the zinc coating layer 14 is damaged, the zinc coating layer 14 plays a role in isolating air, after the zinc coating layer 14 is damaged, zinc is active compared with copper according to the principle of a primary battery, the copper plate strip 13 can be continuously protected, zinc is corroded, the surface protection film layer 16 is arranged, the oxidation resistance is further improved, meanwhile, the surface protection film layer 16 protects the surface of the composite plate strip body 1, and damage to the surface of the composite plate strip body 1 and the like can be reduced.

The number of the extension sections 2 is the same as that of the adaptive holes 3, the extension sections 2 are matched with the sizes of the adaptive holes 3, the aluminum-plated layer 12 is arranged on the upper surface of the aluminum alloy plate strip base material 11, the copper plate strip 13 is arranged on the upper surface of the aluminum-plated layer 12, the zinc-plated layer 14 is arranged on the upper surface of the copper plate strip 13, the passivation layer 15 is arranged on the upper surface of the zinc-plated layer 14, the surface protection film layer 16 is arranged on the upper surface of the passivation layer 15, the thickness of the aluminum-plated layer 12 is 0.02-0.08 mm, the thickness of the zinc-plated layer 14 is 0.05-0.2 mm, the thickness of the copper plate strip 13 is 0.2-4.0 mm, the brand of the copper plate strip 13 is red copper, brass, bronze or white copper, the thickness of the passivation layer 15 is 0.05-0.1 mm, and the thickness of the surface protection film layer 16 is 0.1-0.2 mm.

The working principle is as follows: when in use, when the length of the composite plate belt body 1 is not enough, the plurality of extension sections 2 on one composite plate belt body 1 are inserted into the corresponding plurality of adapting holes 3 of the other composite plate belt body 1, then folding the plurality of extension sections 2, then protecting the surface of the copper strip 13 through the arranged zinc coating 14 and the passivation layer 15, further slowing down the corrosion rate of the copper strip 13, wherein the zinc coating 14 can protect the copper strip 13 from being oxidized, before the galvanized layer 14 is damaged, the galvanized layer 14 plays a role of isolating air, and after the galvanized layer 14 is damaged, according to the principle of the primary battery, zinc acts more actively than copper and can continuously protect the copper plate strips 13, the zinc per se is corroded, the surface protection film layer 16 is arranged to further improve the oxidation resistance, meanwhile, the surface protection film layer 16 protects the surface of the composite plate strip body 1, and damage such as surface scratches of the composite plate strip body 1 can be reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an ultra-thin copper aluminum alloy composite board area, includes composite board area body (1), its characterized in that: the composite plate strip is characterized in that one end of the composite plate strip body (1) is fixedly connected with a plurality of extension sections (2), the other end of the composite plate strip body (1) is provided with a plurality of adapting holes (3), and the composite plate strip body (1) is composed of an aluminum alloy plate strip base material (11), an aluminum-plated layer (12), a copper plate strip (13), a zinc-plated layer (14), a passivation layer (15) and a surface protection film layer (16).

2. The ultra-thin copper-aluminum alloy composite plate strip according to claim 1, characterized in that: the number of the extension sections (2) is the same as that of the adapting holes (3), and the extension sections (2) are matched with the size of the adapting holes (3).

3. The ultra-thin copper-aluminum alloy composite plate strip according to claim 1, characterized in that: the aluminum-plated layer (12) is arranged on the upper surface of the aluminum alloy plate strip base material (11), the copper plate strip (13) is arranged on the upper surface of the aluminum-plated layer (12), the zinc-plated layer (14) is arranged on the upper surface of the copper plate strip (13), the passivation layer (15) is arranged on the upper surface of the zinc-plated layer (14), and the surface protection film layer (16) is arranged on the upper surface of the passivation layer (15).

4. The ultra-thin copper-aluminum alloy composite plate strip according to claim 1, characterized in that: the thickness of the aluminum-plated layer (12) is 0.02-0.08 mm, and the thickness of the zinc-plated layer (14) is 0.05-0.2 mm.

5. The ultra-thin copper-aluminum alloy composite plate strip according to claim 1, characterized in that: the thickness of the copper plate strip (13) is 0.2-4.0 mm, and the grade of the copper plate strip (13) is red copper, brass, bronze or cupronickel.

6. The ultra-thin copper-aluminum alloy composite plate strip according to claim 1, characterized in that: the thickness of the passivation layer (15) is 0.05-0.1 mm, and the thickness of the surface protection film layer (16) is 0.1-0.2 mm.