JPS62164510A - Manufacture of nameplate provided with metallic luster - Google Patents

Abstract

PURPOSE:To manufacture a nameplate provided with metallic luster by a method wherein slurry, in which 100pts.wt of metallic powder is added and mixed with 20-50pts.wt of resin solution, is poured and cured. CONSTITUTION:A clay board 2 is put on a flat plate 1, thereafter, a thin paper 3 on which a name is written is put on the board 2 with the paper 3 upside down. Next, the clay board 2 is cut off along the name line drawn on the thin paper 3 to form cut-off holes 4 having the shape of the name and, subsequently, the thin paper 3 is separated from the top surface of the clay board 2 to produce a molding mold. Subsequently, slurry 7 is poured into the mold 6. Frames 5 are removed after the slurry 7 is cured and the surface of a nameplate 8 is ground by sand paper or the like having a fine mesh, whereby the nameplate provided with metallic luster is obtained. For your reference, the slurry 7 is made by adding and mixing 100pts.wt. of metallic powder with 20-50pts.wt. of resin solution into a slurry state.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method suitable for manufacturing a nameplate that provides metallic luster.

(Prior art) Conventionally, methods for manufacturing nameplates with metallic luster include:
There are two methods: one is to polish the surface of a cast nameplate manufactured by a casting method, and the other is to plate the surface of a plastic molded nameplate. However, the former requires melting the metal, and the latter. There were problems such as the need for expensive plastic molding machines and plating equipment.

(Objective of the Invention) The present invention was made in view of the above circumstances, and an object of the present invention is to provide a method for easily and inexpensively manufacturing a nameplate that can obtain metallic luster without using a casting method or plating.

c) Means for Solving Problems) The method for manufacturing a nameplate that can obtain metallic luster in the present invention is as follows:
This method is characterized by adding 20 to 50 parts by weight of a resin liquid to 100 parts of metal powder and an i-prize, mixing them to form a slurry, and pouring this slurry into a mold and hardening it to solidify it.

In addition, when obtaining a nameplate having a desired metallic luster, a test was conducted to determine the mixing ratio of metal powder and resin liquid, and the results are shown in the table. That is, brass powder with a particle size of 350 mesh under and a resin liquid are mixed in various weights to form a slurry.

Next, this slurry-like material was made into a tube with a diameter of 30m and a height of 50m.
After about 15 minutes have passed and the slurry-like material has completely hardened, the hardened material is taken out from the container and a test piece is made. Next, after 30 minutes had elapsed, the surface of the test piece was polished with sandpaper to check whether the gloss was good or not. The results are shown in the table. The resin liquid used was a fast-curing no-bake binder (trade name: Pepset) manufactured by Hodogaya Chemical Industry Co., Ltd., namely, 50 parts by weight of a phenol formaldehyde resin organic solvent solution (PartR) and 50 parts by weight of a polyisocyanate organic agent solution (PartM). A curing catalyst (Part 105 parts by weight) was used.

From the above table, it can be seen that the preferred mixing ratio of metal powder and resin liquid is 100 parts by weight: 20 to 50 parts by weight.

In addition, 60 test pieces were manufactured with this combination! /4
It has the above-mentioned resistance pressure, so there is no problem in using this material as a nameplate.

[Example 1] Place a clay plate (2) of 120 meters long, 50 meters wide, and 2.5 mm thick on a flat plate (1), then write your name on the vagina clay plate (2).
Place the thin paper (3) face down (see (a) in Figure 1).

In this case, the name written on the thin paper (2) is transparent.

Next, as shown in Figure 1 (b), cut out the clay plate (2) along the name on the thin paper (2) to form a cutout hole (4) in the shape of the name, and then cut out the clay plate (2). 2) Peel off the remaining thin paper (3) from above and form a clay frame (5) around the clay plate (2) to make a mold (6) (see (c) in Figure 1). Next, as shown in FIG. 1, a slurry-like material (7) is poured into a mold (6). The slurry-like material (7) is obtained by adding 20 to 50 parts by weight of a resin liquid to 100 parts by weight of metal powder and mixing the mixture to form a slurry. Type (6)
The slurry (7) poured into the plate hardens after about 15 minutes, but after it hardens, the slurry (7)
2) and the frame (5) are removed to create a nameplate (8) with a protruding name part as shown in (E) of FIG. When the surface of this nameplate plate (8) is polished with a fine sand vapor or the like, a nameplate having a metallic luster, especially in the name part, can be obtained.

[Example 2] To explain the case where a nameplate with metallic luster is manufactured using a different mold from Example 1, a rubber name plate with a name engraved face down as shown in Figure 2 (a) is used. Pour the same slurry (7) as in Example 1 into a mold (21) made of wood, etc. (see (b) in Figure 2).
After curing, the nameplate is extracted from the mold (21) and polished with sandpaper, etc., to obtain a nameplate with metallic luster.

(Effects of the Invention) As is clear from the above explanation, the present invention is a manufacturing method in which metal powder and resin liquid are kneaded to form a slurry and then poured into a mold. It is possible to easily produce nameplates that give a metallic luster without the need for metallization, and there is no need for expensive plastic molding machines or plating equipment that are required in conventional methods. In addition, since the slurry-like material becomes solid in a short time, excellent effects such as high productivity can be achieved.

[Brief explanation of drawings]

The drawings are explanatory diagrams for explaining embodiments of the method of the present invention, and FIG. 1 is a longitudinal cross-sectional view of the first embodiment, and FIG.
The figure is a longitudinal cross-sectional view of the second embodiment. '9-1 Cause I ・ ) Figure 2

Claims (1)

[Claims] Metallic luster is obtained by adding 20 to 50 parts by weight of a resin liquid to 100 parts by weight of metal powder, mixing them to form a slurry, and pouring this slurry into a mold and hardening it to solidify it. Method of manufacturing nameplates.