JPH09269736A - Electric discharge plasma sintered nameplate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly form a nameplate by mere correcting and working a sintered compact having high dimensional accuracy by fixing powder of a metal and an inorg. material and net and wire of a metal by electric discharge plasma sintering. SOLUTION: The nameplate 1 is formed by sintering and fixing the powder 3 of another kind metal to a part of the powder 2 of the metal. The name plate is formed by arranging the wire 4 of the metal therein in order for the characters desired to be completed to appear. The nameplate 1 is formed by sintering the metal 6 of the central part, the metal 7 of outer peripheral part, the nets 10 of the metal, the wires 11 of the metal and a separately formed engraved body part 8 of the metal. The nets 10 or the wires 11 of the metal may be arranged as structural materials in the nameplate material. The cost is reduced by arranging the inexpensive metal in the central part and the costly metal in the outer peripheral part as compared with the use of a planar metal ingot consisting of the single material, such as a gold, which is high in price.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a nameplate.

[0002]

2. Description of the Related Art It has been conventionally known to use a metal nameplate material such as gold or titanium.

[0003]

Conventionally, a nameplate material such as titanium was processed into a square pole or a plate shape, and then the nameplate material was engraved with a laser processing device or the like to create letters. There is a problem that shape processing is difficult and processing time is long.

Further, the plate-shaped metal lump made of a single material has a problem that it has a single color and is not highly artistic.

Further, there is a problem that a plate-shaped metal block made of a single material such as gold is expensive.

An object of the present invention is to solve the above problems.

[0007]

As means for achieving the above object, a nameplate material characterized in that powder of metal and inorganic material and metal net and wire are fixed by sintering by discharge plasma is used. It is preferably a nameplate.

Further, the engraving body made of metal or inorganic material and the name plate material may be fixed by spark plasma sintering.

[0009]

By using the nameplate material having the above-mentioned structure, in which the powder of the metal and the inorganic material and the metal net and wire are fixed by spark plasma sintering, the nameplate material has hitherto been used. Although the characters were created by engraving, the dimensional accuracy is high by previously sintering the metal powder in a shape close to the completion target, or by arranging and creating the metal lines in a shape close to the completion target character. It is enough to correct the sintered body, and the problem of engraving the nameplate material and the difficulty of shape processing is largely solved, and the completion target is reached in a shorter time than before.

Further, the nameplate can be formed in a short time by firing the discharge plasma and fixing the engraved body portion of the character to be completed and the nameplate material, which are separately made of metal or inorganic material.

Further, metal nets and wires may be arranged in the powder to be used as a structural material.

In addition, by using a nameplate material characterized in that powders of various metals are arranged and sintered on the outer peripheral portion, different colors of various metals appear on the surface of the nameplate material. You can create a highly artistic nameplate.

Further, as compared with the case of using a plate-shaped metal lump of a single material, by using a powder of a metal and an inorganic material having a specific gravity lighter than that of the plate-shaped metal, A nameplate material that is lighter than a metal block can be made.

By using different metal powders for the metal in the central portion and the outer peripheral portion, as compared with the case of using a plate-shaped metal block made of a single material, which is expensive like gold, for example. By arranging a low-priced metal in the central part and a high-priced metal in the outer peripheral part, the price is lower than that of a plate-shaped metal block made of a single material.

[0015]

Embodiments will be described in detail with reference to the drawings.

The discharge plasma sintering is performed by applying ON-OF to the green compact.
It is a solid compression sintering method in which the high energy of the discharge plasma generated instantaneously by the spark discharge phenomenon that occurs in the powder particle gap is effectively applied to thermal diffusion, electric field diffusion, etc. by applying F DC pulse voltage.

The discharge plasma sintering is ON-OFF.
When a voltage is repeatedly applied in this state, the discharge point moves and is dispersed throughout the green compact, and efficient sintering is possible.

Further, in the discharge plasma sintering, a DC pulse voltage is applied and heating is performed by self-heating, so that the sintered body has extremely excellent thermal efficiency and a high quality sintered body can be obtained. Since it is a rapid temperature rising sinter method, sinter without grain growth and sinter joining of dissimilar metals and dissimilar materials are possible.

For example, when powder titanium that is compressed to a high density is sintered by discharge plasma, a sintered body that has high dimensional accuracy and is uniform can be obtained.

In the embodiment shown in FIG. 1, the nameplate 1
In, the metal powder 3 of another type is sintered and fixed to a part of the metal powder 2. In addition, the metal line 4 is arranged so that the character of the completion target appears.

In the embodiment shown in FIG. 2, the nameplate 1 is a metal 6 at the center and a metal 7 at the outer periphery, a metal net 10, a metal wire 11, and a metal engraving made separately. Part 8
Is sintered.

A metal net 10 or wire 1 is used as a structural material.
1 may be placed in the nameplate material. The metal wire 11 may be not only a straight line but also a spring shape.

Furthermore, the nameplate 1 is made of metal powder 2, another kind of metal powder 3, the metal 6 at the center, the metal 7 at the outer periphery, and the engraved body 8 are not limited to metals, but are inorganic materials such as ceramics. May be used.

[0024]

Since the present invention is configured as described above, the following effects can be obtained.

When spark plasma sintering is carried out, by arranging and forming a metal powder compact having a shape close to the completion target and a metal line having a shape close to the characters of the completion target, a sinter with a high dimensional accuracy and a uniform structure can be obtained. Since it can be obtained, it only needs to be modified, and the completion target can be achieved in a shorter time than before.

Further, by disposing the metal net and the wire in the nameplate material, it becomes a structural material of the nameplate material and is hard to break.

Further, the nameplate can be formed in a short time by firing the discharge plasma on the engraving body part of the character to be completed which is separately made of metal or inorganic material and the nameplate material.

Further, if various metal powders are arranged on the outer peripheral portion and sintered, a nameplate having a high artistry can be created because different colors appear.

Further, by using the powder, a void is created in the nameplate material, and a nameplate material lighter than a plate-shaped metal block made of a single material can be formed.

By arranging inexpensive powder metal in the central portion, the price is lower than that of a plate-shaped metal block made of a single material.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of the nameplate 1. FIG. 2 is a sectional view of the nameplate 1.

[Explanation of symbols]

 1 ... Nameplate, 2 ... Metal powder, 3 ... Different kind of metal powder, 4 ... Metal line, 6 ... Central metal, 7 ... Peripheral part Metal, 8 ... Engraving part, 10 ... Metal net, 11 ... Metal wire.

Claims (2)

[Claims] 1. A nameplate using a nameplate material, characterized in that powders of metal and inorganic material and metal nets and wires are fixed by spark plasma sintering. 2. A nameplate characterized in that an engraved body made of a metal or an inorganic material and the nameplate material according to claim 1 are fixed by sintering with discharge plasma.