JPH01313152A - Manufacture of metallic thin sheet - Google Patents

Abstract

PURPOSE:To inexpensively and efficiently form a thin sheet even if it is a hard-to-work material such as an intermetallic compound by passing plural, parallel, metallic fine wires through a molten metal bath and solidifying molten metal adhered. CONSTITUTION:The molten metal bath 3 is formed in a vessel 1, plural metallic fine wires 4 of the same kind of metal as the molten metal bath are dipped in parallel from the upper part in the molten metal bath 3 in such a state that the fine wires 4 are brought into contact with one another or they are very adjacent to one another and lead out of an opening 2 to the outside of the container 1. The molten metal 30 around parallel metallic fine wires 4 lead out of the opening 2 is solidified by a cooling zone 5 and each metallic fine wire 4 is integrated with the solidified metal 30' to obtain a thin sheet 6. The metallic fine wire 30 is made of fine crystals in property and since the molten metal 30 adhered to the metallic fine wires 4 is small in capacity, it is rapidly cooled by the cooling zone 5 and makes fine crystals. Consequently, the thin sheet 6 obtained is, as a whole, of fine crystals and, as a result, rolling, too, can be carried out comparatively easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a thin metal plate suitable for difficult-to-process materials.

[Conventional technology and issues to be solved]

Difficult-to-work materials such as alloy materials made of intermetallic compounds have poor room-temperature ductility and low high-temperature deformability, so it is considered extremely difficult to process them.

Conventionally, the method of processing such difficult-to-process materials was disclosed in
No. 1-213361, JP-A-62-196305,
■Unexamined Japanese Patent Publication No. 62-99425 has been proposed.

Among these, method (2) is a so-called sheath rolling method, in which a difficult-to-process material is encapsulated in a highly ductile material and hot worked at a high temperature (1000° C. or higher). Kaoru's method involves heating and extruding a fine powder of a difficult-to-process material, and then processing the extruded material by utilizing the hypercholic phenomenon unique to fine powder. Furthermore, in the method (2), different types of fine metal powders that are to form a metal compound are mixed, heated to a predetermined temperature, and then subjected to hot plastic processing and then subjected to a diffusion treatment to form a metal compound. be.

However, among these conventional methods, method Moreover, it requires a material that does not react with the workpiece, and has the disadvantage that it is difficult to select the material.

In addition, methods (1) and (2) have the disadvantage of high costs because they use expensive metal fine powder.

In addition to these methods, the so-called rapid solidification method is also known, in which a thin plate is obtained by supplying molten metal to a rotating drum or the like and rapidly cooling it, but the thin plate obtained by this method has a poor shape and a narrow width. The drawback is that only a narrow and extremely thin plate shape can be obtained.

The present invention was made in view of such conventional problems,
The purpose of this invention is to provide a method that can efficiently produce thin plates of difficult-to-process materials such as intermetallic compounds at low cost, and that can also produce thin plates of good shape in any size. be.

[Means and Examples for Solving the Problems] The present invention focuses on the fact that even though difficult-to-process materials are difficult to manufacture into thin plates, wire rods thereof can be manufactured relatively easily, and the wire rods (thin wires) are It was designed to be used to manufacture thin plates.

That is, the present invention integrates the plurality of thin metal wires by passing a plurality of parallel thin metal wires through a molten metal bath and solidifying the attached molten metal, thereby obtaining a thin plate made of the thin metal wires and solidified metal. This is how it was done.

Figures 1 to 3 show one implementation situation of the present invention, in which (1) is a container for forming a molten metal bath;
A slit-like opening (2) is formed at the bottom of the tube 1), and a cooling zone (5) for solidifying the molten metal attached around the thin metal wire is provided in the opening.

The opening (2) has a width that is slightly larger than the diameter of the thin metal wire to be inserted.

Further, a nozzle-shaped lead-out part (force) is formed in this opening, which hangs down from the container body, and this lead-out part (7) constitutes a cooling zone (5) for the molten metal.

In the present invention, a molten metal bath (3) is formed in a container (1), and a plurality of gold metals are arranged in parallel from the top! 4 Thin wire (4) is immersed in the molten metal bath (3), and then passed through the opening (2) into the container (
1) Bring it outside.

It goes without saying that the metals constituting the thin metal wire (4) and the molten metal bath (3) are the same type of metal, and the plurality of parallel thin metal wires (4) are similar to each other as shown in Figure 2. The thin wires adjacent to each other are introduced into the bath in a state where they are in contact with each other or in close proximity to each other.

The parallel thin metal wires (4) led out from the openings (2) solidify the molten gold JIC31 around them in the cooling zone (5), and each thin metal wire (4) becomes a thin plate ( 6
) is obtained.

In this example, since the width of the opening (2) is approximately equal to the diameter of the thin metal wire (4), the molten metal FT [3fJ is used to fill the recess between the adjacent thin metal wires (4) as shown in FIG. It adheres and solidifies in a stable state.

The thin plates (6) continuously drawn out from the container (1) in this way are rolled as necessary and wound into coils. The thin metal wire (4) is finely crystalline in nature, and
Since the molten metal attached to the thin metal wire (4) also has a small capacity, it is rapidly cooled in the cooling zone (5) and becomes fine crystals. Therefore, the obtained thin plate (6) has fine crystals as a whole, and therefore rolling can be performed relatively easily.

For the cooling zone (5), a special cooling means using gas cooling, water cooling, etc. can be used.

Alternatively, the thin plate (6) can be formed by making the width of the opening (2) sufficiently larger than the diameter of the thin metal wire (4) and casting the thin metal wire (4) with molten metal.

The thin metal wire (4) used in the present invention is a thin wire obtained by a method such as a so-called rotating liquid spinning method or a tiller method. For example, in the former method, molten metal is blown into a rotating coolant as a jet through a nozzle and rapidly solidified into a thin wire, while in the latter method, the molten metal is spun together with glass to obtain a thin wire. It is.

FIGS. 4 to 8 show other embodiments of the present invention, in which (8) is a thin wire feeding device i! , (9) are rolling rolls.

The thin wire supply device (8) includes a bobbin wire on which a plurality of thin metal wires (4) are wound and can be drawn out in parallel, and a bobbin wire that focuses the plurality of thin metal wires (4) that have been fed out. It is composed of a guide roller αn a't alp.

In this embodiment, the plurality of metal thin wires (4) supplied from the thin wire supply device (8) are arranged on each guide roller (11) α2Q.
The molten metal bath (3) in the container (1) is sequentially focused at 3).
After passing through the bath, open the opening (2) at the bottom of the container.
) is derived from

The molten metal (7) around the thin metal wire (4) is
4) is sequentially cooled and solidified in the process of moving through the cooling zone (5) formed by the derivation section (force).

In this example, since the width of the opening (2) is sufficiently larger than the diameter of the gold kA thin wire (4), as shown in FIG. (6) is obtained. This thin plate (6) is rolled to a predetermined thickness with a rolling roll (9) and then wound into a coil (not shown).

Note that a heating device (for example, a heat treatment furnace) for the purpose of equalizing the structure of the thin plate can be provided upstream or downstream of the rolling roll (9).

〔Effect of the invention〕

According to the present invention described above, by using a plurality of thin metal wires, thin plates can be efficiently manufactured even from difficult-to-process materials such as intermetallic compounds, and fine metal powder can be manufactured. Since it is not used, manufacturing costs can be reduced.

Further, the shape of the obtained thin plate is good, and by appropriately selecting the number and diameter of the thin metal wires, the size of the opening of the container, etc., a thin plate of any thickness and width can be manufactured.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention,
1 is a longitudinal cross-sectional view, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line l1l-1 [1] in FIG. 4 to 8 show other embodiments of the present invention, FIG. 4 is an overall explanatory diagram, FIG. 5 is a cross-sectional view taken along the line ■-v in FIG. 4, and FIG. 6 is a container FIG. 7 is a cross-sectional view taken along the line ■--■ in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line ■--■ in FIG. 6. In the figure, (1) is a container, (2) is an opening, (3) is a molten metal bath, (4) is a thin metal wire, (5) is a cooling zone, and (6) is a molten metal bath.
(7) is a molten metal, and (7) is a solidified metal. Patent applicant Nippon Kokan Co., Ltd. Inventor Toyooka Mihara
inside part part
Tomi 1) Ministry, patent attorney representing me
Masaru Yoshihara, Tadashi Tomabechi
Figure 4 Figure 5 - Eyes

Claims (1)

[Claims] Pass multiple thin metal wires in parallel through a molten metal bath,
A method for manufacturing a thin metal sheet, which comprises integrating a plurality of thin metal wires by solidifying the attached molten metal to obtain a thin plate made of thin metal wires and solidified metal.