JP3923949B2 - Glass manufacturing method - Google Patents

Description

  The present invention relates to a glass manufacturing method, and more particularly, to a glass manufacturing method used for building wall materials, flooring materials, and the like.

  The glass used for the wall material of the building is preferably opaque from the viewpoint of privacy (opacity of the glass). Moreover, it is desirable that the glass used for the flooring of the building is not slippery from the viewpoint of preventing rollover (non-smoothness of the glass). In addition, the glass used for decoration is often preferred to be opaque and rough (the glass is opaque and non-smooth).

As described above, there are many demands for glass having opacity and non-smoothness, but glass ornaments having these properties have been conventionally manufactured by the following method. That is, a large number of glassy glass powders having the same thermal expansion coefficient as that of the glass product formed thereon are stacked, softened at a temperature of 600 to 900 ° C., and kept for about 30 minutes to 3 hours. It is a method of gradually cooling to room temperature over 3 days (see Patent Document 1).
JP-A-6-64933

However, in order to slowly cool the glass by the conventional manufacturing method, the temperature around the glass must be controlled by electricity or the like. Therefore, the conventional method for manufacturing a glass ornament has a problem that it requires a large amount of utility costs.
Then, an object of this invention is to provide the manufacturing method of glass which can manufacture the glass which has opaqueness and non-smoothness at low cost.

  According to the present invention, the above problem is solved by the following means.

  In the first invention, a step of molding the molten glass, and before or during the molding, or after the molding, a part or all of the molten glass is brought into contact with the refractory fiber body. A step of attaching glass fibers contained in the refractory fiber body to a part or all of the melted glass; a step of cooling the melted glass in a state of being in contact with the refractory fiber body; And a step of separating the refractory fiber body from the cooled glass.

  The second invention includes a step of attaching a phosphorescent material to the molten glass, a step of welding and melting the molten glass on the glass to which the phosphorescent material is adhered, and a step of molding the molten glass. Before the molding, in the middle of the molding, or after the molding, part or all of the molten glass is brought into contact with the refractory fiber body, and the glass fiber contained in the refractory fiber body is made of the molten glass. A part or all of the process, a step of cooling the molten glass in a state of contact with the refractory fiber body, and a step of separating the refractory fiber body from the cooled glass. It is the manufacturing method of the glass characterized.

  According to a third invention, the glass according to the first or second invention is characterized in that the refractory fiber body is in the form of cotton, blanket, plate, brick, powder, or blanket. It is a manufacturing method.

  According to the method for producing glass according to the present invention, glass having opacity and non-smoothness can be produced at low cost.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

  The glass manufacturing method according to the embodiment of the present invention includes the following steps.

  The first step is a step of melting glass (including glass raw materials). In this step, the glass placed in the crucible is heated and melted. In addition, it is desirable to use soda glass as the glass from the viewpoint of cost and strength, but it goes without saying that the present invention does not limit the components of the glass. Further, it is desirable to perform the melting in a range of about 1400 degrees, but it goes without saying that the present invention does not limit the temperature of the melting. The melting time is desirably about 14 to 15 hours, but it goes without saying that the present invention does not limit the melting time. Moreover, although it is desirable that the amount of glass melted at a time is about 500 kg to 5 t, it goes without saying that the present invention does not limit the amount of glass melted at a time.

  The second step is a step of attaching a phosphorescent material to the molten glass. In this step, the glass melted in the first step is wound with a scissors, and a phosphorescent material is attached to the wound glass. It is desirable to use stainless steel with a diameter of 30 mm to 50 mm, but it goes without saying that the present invention does not limit the material and dimensions of the basket. In addition, although it is desirable that the amount of the phosphorescent material to be adhered is about 1% to 3% with respect to the molten glass, it is needless to say that the present invention does not limit the amount of the phosphorescent material to be adhered. .

  The third step is a step of welding and melting molten glass (including glass raw material) on the glass to which the phosphorescent material is adhered. By these steps, since the phosphorescent material is confined in the glass, the phosphorescent material can be prevented from being oxidized by touching air. In addition, although it is desirable to use the glass having the same expansion coefficient as the glass to which the phosphorescent material is adhered as the glass to be welded to the glass to which the phosphorescent material is adhered, the present invention is welded to the glass to which the phosphorescent material is adhered. It goes without saying that the components of the glass are not limited.

  The fourth step is a step of molding the glass melted in the third step. In this step, it is desirable to carry out by pouring the glass wound around the bag into the barrel mold (FIG. 1 (a)) and pressing it with a constant pressure (FIG. 2 (b)). Needless to say, the present invention does not limit the means of molding. The body shape is preferably a brick shape as shown in FIG. 2, and the body material is preferably a metal, but the present invention does not limit the shape or material of the body shape. Needless to say. In addition, although it is desirable to use the arrow shape as shown in FIG. 2 as the means for pressing the glass, it goes without saying that the present invention does not limit the means for pressing the glass.

  The fifth step is a step of bringing a blanket-shaped heat insulating material into contact with a part or all of the molten glass before, during or after the molding (FIGS. 1A and 1B). . By this process, the glass fiber contained in the blanket-like heat insulating material reaches the glass, and the surface of the glass becomes opaque. Moreover, since the shape of the blanket-like heat insulating material is reflected on the surface of the glass by this step, the glass becomes non-smooth. In addition, although it is desirable to use what has kaolin as a main component for this blanket-like heat insulating material, what is made to contact glass may be anything as long as it is a refractory fiber body. Therefore, in the present invention, for example, a cotton-like, blanket-like, plate-like, brick-like, or powder-like refractory fiber body can be brought into contact with glass instead of a blanket-like heat insulating material. In addition, when making a refractory fiber body into a blanket shape or a blanket shape, a refractory fiber body can be made into a box shape as shown in FIG. 3, and can be accommodated in the trunk | drum shape of FIG. 2 (FIG. 4). In this way, the refractory fiber body wraps around the melted glass simply by putting the molten glass into the body mold, so that the glass can be easily brought into contact with the refractory fiber body.

  The sixth step is a step of cooling the molten glass while being in contact with the heat insulating material. In this step, after the arrow mold is separated from the trunk mold (FIG. 1 (d)), the glass is taken out from the trunk mold while being in contact with the heat insulating material (FIG. 1 (e)), and put into a slow cooling furnace (FIG. 1). (F)). Thus, in embodiment of this invention, glass cooling is performed in the state which contacted the heat insulating material. Therefore, in the embodiment of the present invention, it is possible to reduce the utility cost related to temperature control around the glass as compared with the conventional manufacturing method. In addition, although it is desirable to hold | maintain glass for about 20 hours in a slow cooling furnace, keeping glass in contact with a heat insulating material after that, it is desirable to hold | maintain about 3 to 5 days outside a slow cooling furnace, but this invention cools glass. Needless to say, the time and place are not limited. Moreover, although it is desirable to perform the temperature control of the slow cooling furnace using a nichrome wire, as described above, the embodiment of the present invention can reduce the utility cost related to this temperature control as compared with the conventional manufacturing method. It is.

  The seventh step is a step of separating the heat insulating material from the cooled glass. In this step, the glass in contact with the heat insulating material is taken out from the slow cooling furnace (FIG. (G)), and the heat insulating material is separated from the taken out glass (FIG. H). In addition, the glass fiber contained in a heat insulating material has adhered to the glass (FIG.1 (i)) separated from the heat insulating material. Moreover, shaping | molding can be added to the glass separated from the heat insulating material (FIG. 1 (i) if desired.

  As described above, according to the glass manufacturing method of the embodiment of the present invention, glass having opacity and non-smoothness can be manufactured at low cost.

  In the embodiment of the present invention, the light storage material is included in the glass. However, in the present invention, the light storage material may not be included in the glass. In this case, the second step and the third step described above can be omitted. Therefore, in this case, the cost can be reduced both physically and personally.

  In the embodiment of the present invention, the case where the present invention is applied to hot casting has been described for the sake of easy understanding, but it goes without saying that the present invention can also be applied to cold casting. . In this case, melting is also performed in a body mold for molding.

  The present invention is suitable for the production of glass as wall materials, flooring materials, nameplate materials, ornaments and the like, but it goes without saying that the present invention can be applied to the production of all kinds of glass.

It is a figure which shows the manufacturing method of the glass which concerns on embodiment of this invention. It is a figure which shows the trunk | drum type | mold and arrow type | mold which concern on embodiment of this invention. It is a figure which shows the blanket-shaped heat insulating material which concerns on embodiment of this invention. It is a figure which shows the figure which put the blanket-shaped heat insulating material in the trunk | drum type | mold which concerns on embodiment of this invention.

Claims (3)

Forming a molten glass; and
Before the molding, in the middle of the molding, or after the molding, a part or all of the molten glass is brought into contact with the refractory fiber body, and the glass fiber contained in the refractory fiber body is melted into the glass. Wearing part or all of
A step of cooling the molten glass in a state of being in contact with the refractory fiber body;
Separating the refractory fiber body from the cooled glass;
A method for producing glass, comprising: Attaching a phosphorescent material to the molten glass;
Welding the molten glass to the glass with the phosphorescent material attached, and melting the glass;
Molding the molten glass;
Before the molding, in the middle of the molding, or after the molding, a part or all of the molten glass is brought into contact with the refractory fiber body, and the glass fiber contained in the refractory fiber body is made of the molten glass. A process of wearing a part or all;
A step of cooling the molten glass in a state of being in contact with the refractory fiber body;
Separating the refractory fiber body from the cooled glass;
A method for producing glass, comprising:   The method for producing glass according to claim 1 or 2, wherein the refractory fiber body has a cotton shape, a blanket shape, a plate shape, a brick shape, a powder shape, or a blanket shape.