JP2004121714A - Method for producing ornamental glassware, and ornamental glassware - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing ornamental glassware which is suitably used for producing accessories such as a brooch, an artistic work or daily necessaries and by which an ornamental part is easily attached to a glass base body in order to enhance the ornamental effect, and also to provide the ornamental glassware. <P>SOLUTION: The ornamental glassware producing method includes: a first process for arranging an ornamental part 2 consisting of a heat-resistant material on a glass base body 1; a second process for softening the glass base body 1 by heating it in a furnace at 500 to 1,000°C to reduce viscosity; and a third process for embedding the ornamental part 2 into the glass base body 1. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention can be suitably used when producing decorative articles such as accessories such as broaches, art objects or daily necessities, and decorative glass products in which decorative parts are easily attached to a glass substrate in order to enhance the decorative effect. And a decorative glass product.
[0002]
[Prior art]
2. Description of the Related Art A pendant head, a broach, and the like in which various types of jewelry, minerals, and the like are combined with a transparent resin (acrylic resin) molded body or a glass molded body have been known (for example, see Patent Literature 1).
[0003]
[Patent Document 1]
JP-A-11-137315
In the production, a part of the required amount of acrylic resin is poured into a molding die to form a part on one side of the molded body, and then an embedding hole for a decorative piece is formed on the mating surface of the part on the one side, A decorative piece is embedded in the embedding hole, and thereafter, the remaining acrylic resin is poured into the molding die, and the remaining part of the molded body is molded, so that a decoration is provided at a fixed position inside the molded body. The technique of obtaining jewelry with embedded pieces has been adopted. There is almost no description using glass.
[0005]
[Problems to be solved by the invention]
However, when an acrylic resin or glass heated (melted) until it has fluidity is poured into a molding die, air bubbles are likely to enter the glass, and in particular, glass has a disadvantage that devitrification, cracking, cracks, and the like are likely to occur.
Therefore, an object of the present invention is to propose a method of manufacturing a decorative glass product in which decorative parts can be easily arranged at a predetermined position and which does not generate bubbles, devitrification, and the like.
[0006]
[Means for Solving the Problems]
The present invention has been proposed in view of the above. The first step of arranging decorative parts made of a heat-resistant material on a glass substrate, and the glass substrate is softened by heating to 500 to 1000 ° C. in a heating furnace. And a third step of embedding a decorative part in a glass substrate, and a method of manufacturing a decorative glass product.
[0007]
The present invention also proposes a decorative glass product obtained by the method for producing a metal decorative article.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
First, the glass substrate and decorative parts used in the first step in the manufacturing method of the present invention will be described.
[0009]
The glass substrate used in the present invention is not particularly limited, and may be plate-shaped or lump-shaped, for example, a glass plate or the like cut into a predetermined shape, fusing (heat welding), part-dosing, or the like. A molded body processed by an existing glass processing method such as a veil (molding and molding of powder) may be used. Further, colored glass may be used, or a pattern or the like may be appropriately formed on the surface. When a mold is used for molding, the mold may be used without removing the glass substrate from the mold.
[0010]
The decorative part is not particularly limited in its material and shape as long as the decorative part is made of a heat-resistant material that does not cause deformation, alteration (discoloration) or the like at the heating temperature (500 to 1000 ° C.) in the second step. Instead, for example, synthetic stones such as zircon, sapphire, and ruby, molded or sintered bodies of metals or alloys, and ceramics may be used.
[0011]
In the first step of the manufacturing method of the present invention, decorative parts are arranged at predetermined positions on the glass substrate. At this time, the decorative parts may be temporarily fixed using an organic adhesive or an adhesive tape for the purpose of preventing rolling or dropping of the decorative parts, or the surface of the glass substrate may be stably disposed (placed). A concave portion may be provided, or the bottom surface of the decorative part may be formed flat. This arrangement has no problem even if it is arranged (temporarily fixed) with a slight inclination.
[0012]
When an organic adhesive is used, there is no particular limitation as long as the decorative part can be temporarily fixed on the glass substrate. For example, a commercially available adhesive may be used, or various resin-based or rubber-based adhesives may be used. (Including an adhesive). Since the organic adhesive is burned off at the heating temperature in the second step, it is desirable to avoid using an adhesive containing chlorine, sulfur, cyan, or the like that generates harmful gas components.
[0013]
Next, in the second step of the production method of the present invention, the heating is performed in a heating furnace at 500 to 1000C, more preferably 840 to 870C or less. By heating above such a strain point (strain point), the glass softens and becomes less viscous, and begins to be dented by the weight of the decorative part, so that the decorative part does not roll off the arrangement (temporary fixing) position. In addition, it is desirable that the heating be performed at a low heating rate so that a temperature difference does not occur due to the thickness of the glass or the like until the strain point (strain point) of the glass substrate. This is because if the temperature rise is too fast, cracks or cracks may occur in some cases due to generation of bubbles or poor discharge of moisture. When the temperature exceeds the strain point (strap rain point), it is desirable to increase the heating rate. When an organic adhesive or an adhesive tape is used in the first step, the organic adhesive or the adhesive tape is burned off by this heating.
[0014]
The heating temperature is 500 to 1000 ° C. as described above, but may be appropriately adjusted depending on the type of the glass substrate to be used. For example, lead glass or the like may be heated to about 560 ° C., and heat-resistant glass may be heated to about 820 ° C. .
If the heating temperature is lower than 500 ° C., the viscosity of the glass base is not sufficiently lowered, so that the decorative parts cannot be buried sufficiently. If the heating temperature is higher than 900 ° C., the viscosity of the glass base becomes too low to maintain the shape. Or the pattern formed on the surface of the glass substrate may flow, and the colored glass may be discolored or burnt.
[0015]
Subsequently, in a third step in the manufacturing method of the present invention, the decorative part is embedded in the glass base. The burial may be completely buried or may be buried so that a part thereof is exposed. Since the embedding of the decorative part has begun to dent due to the weight of the decorative part in the second step as described above, the embedding can be easily performed by using a jig such as tweezers. That is, if the decorative parts are to be buried by heating without being placed on the glass substrate, it is necessary to work by holding the decorative parts that have become hot with a jig such as tweezers, and the work is extremely difficult. Or it is very dangerous if you fail to grasp the decorative parts, but by heating and embedding the decorative parts on the glass substrate as described above, by a simple work of pushing in from the top, The embedding work can be performed easily and safely.
[0016]
This third step can be performed in a heating furnace because it is a simple operation as long as the inside of the heating furnace can be visually checked and work can be performed by inserting heat-resistant gloves. Remove from furnace and perform. When the glass substrate is taken out of the heating furnace, the glass substrate reaches a sufficient temperature and the surface tension of the glass is stronger than the attractive force. Just remove it from the furnace. Further, when the temperature of the glass base drops during the operation and the decorative parts cannot be sufficiently buried, the above-mentioned second step may be repeated.
[0017]
In the case where the third step is taken out of the heating furnace as described above, the temperature of the glass substrate is lowered during the operation, so it is desirable to perform the step of returning the glass substrate to the inside of the heating furnace (fourth step). The temperature in the heating furnace at this time may be the same as the above-mentioned heating temperature, so that the distortion given during the embedding in the third step is eliminated, and the adhesion between the glass substrate and the decorative part is improved and the bonding is performed. The strength is increased, and the decorative parts can be prevented from falling off, and furthermore, the occurrence of cracks and cracks due to rapid cooling can be prevented. Here, during the work of embedding the decorative part or in the fourth step thereafter, if the glass base is kept or reheated to 500 ° C. or higher, the softened state and the low-viscosity state are maintained, and the embedded decorative part Viscous elasticity (elastic recovery) force and expansion force act from the side, so that the decorative parts can be wrapped around as if they were, increasing the integrity.
In the case where there is only one decorative part, the embedding work is completed in about several seconds, so that a sufficient amount of heat is maintained, so that it is not necessary to heat again. That is, reheating may not always be necessary.
[0018]
Thereafter, in order to prevent the occurrence of cracks and cracks due to rapid cooling, slow cooling is performed. Specifically, it may be rapidly cooled to 500 ° C., but is cooled slowly at a temperature lower than 500 ° C. For example, it is desirable to turn off the power of the heating furnace and gradually cool (cool) without taking out the heating furnace.
[0019]
The decorative glass product of the present invention thus obtained is free from bubbles, has almost no devitrification, cracks, cracks, and the like, as compared with the conventional method of pouring the heated and melted acrylic resin or glass into a mold. There is no beautiful. Moreover, in the case of glass whose transparency is much higher than that of acrylic resin or the like, the decorative parts look clearer and more beautiful.
[0020]
Therefore, the method for manufacturing a decorative glass product and the decorative glass product of the present invention can be suitably used when manufacturing decorative articles such as accessories such as broaches, art objects, or daily necessities such as paper weights.
[0021]
【Example】
[Example 1]
As a glass substrate, a plate glass (blue) was cut into 4 × 3.5 cm with a glass cutter and folded. Furthermore, it was cut into a circle using a tool “Zagzag” (manufactured by Bohle “Bore”).
As the decorative parts, round cut commercially available synthetic ruby, white zircon, yellow sapphire, and chain fittings were used.
First, as a first step, a plurality of synthetic stones 2 are arranged in a well-balanced manner on a glass substrate 1 cut as shown in FIG. 1 (a), and a chain mounting bracket is arranged on the upper part of the glass. Temporarily fixed with bond 3 for use.
Next, as a second step, after the bond was cured, it was placed in an electric furnace at room temperature. The temperature of the electric furnace was raised to 500 ° C. at 10 ° C./min, and from 500 ° C. to 870 ° C. at 30 ° C./min. Further, the electric furnace was set to maintain the temperature at 870 ° C. In this second step, as shown in FIG. 1B, the woodworking bond 3 is burned off, but the glass substrate 1 is softened and made less viscous and starts to be dented by the weight of the synthetic stone 2.
Subsequently, as a third step, after the inside of the electric furnace reached 870 ° C., the glass substrate was taken out with tweezers, and the synthetic stone 2 was pushed from above with tweezers 4 as shown in FIG. Similarly, the chain fitting was pressed into the softened and low-viscosity glass substrate.
The embedding of the synthetic stone could be carried out almost easily, but the second step and the third step were repeatedly performed so that some synthetic stones were not sufficiently embedded. That is, the glass substrate was returned to the electric furnace being heated, and after 5 minutes, it was pushed in such a manner that the round cut girdle portion of the synthetic stone was filled.
Then, the glass was returned to the electric furnace, the heating of the electric furnace was stopped, the vent was opened, and the mixture was rapidly cooled to 500 ° C. Thereafter, the vent of the electric furnace was closed, and the mixture was slowly cooled to room temperature over 50 minutes.
The chain was passed through a chain mounting bracket to obtain a necklace (decorative glass product).
[0022]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented in any manner as long as the configuration described in the claims is not changed.
[0023]
【The invention's effect】
As described above, the method for manufacturing a decorative glass product of the present invention can perform the operation easily and safely, is beautiful, and has no air bubbles, as compared with the conventional method of pouring a heated and melted acrylic resin or glass into a mold. It is possible to manufacture a product having almost no devitrification, cracks, cracks and the like.
The method for manufacturing a decorative glass product and the decorative glass product of the present invention can be suitably used for manufacturing various products over a wide range of fields, such as decorative articles, artworks, and daily necessities.
[Brief description of the drawings]
1A is a side view showing a first step in an embodiment, FIG. 1B is a side view showing a second step, and FIG. 1C is a side view showing a third step.
[Explanation of symbols]
1 Glass substrate 2 Synthetic stone (decorative parts)
3 Woodworking bond 4 Tweezers

Claims (3)

A first step of arranging decorative parts made of a heat-resistant material on a glass base, a second step of softening the glass base and lowering the viscosity by heating the glass base to 500 to 1000 ° C. in a heating furnace; And a third step of embedding in a glass substrate. The method of manufacturing a decorative glass product according to claim 1, wherein if the decorative part is not sufficiently embedded in the glass substrate in the third step, the second and third steps are repeated. A decorative glass product obtained by the method according to claim 1.

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