KR100296994B1 - a method for manufacturing a marble using cullet - Google Patents

Abstract

PURPOSE: A method for preparing glass marble is provided, to obtain the glass marble whose surface is uneven and which has the randomly formed natural design of molten state and the artistic appearance similar to that of natural marble. CONSTITUTION: The method comprises the steps of crushing the waste glass member(200) into the random size; washing the crushed glass pieces(203); optionally mixing the washed glass pieces with a dye for ceramic; piling up the crushed glass pieces into a frame; heating the piled glass pieces in a furnace to allow the fused part to be devitrified; and cooling the heated glass pieces slowly. Preferably the heating process comprises the steps of the first heating at a temperature of 700-900 deg.C; the second heating at a temperature of 900-1,100 deg.C; and optionally the third heating at a temperature of 1,200 deg.C.

Description

Method of manufacturing a marble using cullet

The present invention relates to a method for producing glass marble that can be used in various ways as building materials and decorative materials using various glass products used and discarded in daily life.

In particular, the glass marble of the present invention randomly formed on the surface of the glass marble to express aesthetics close to natural stone to melt at a high temperature to produce a minimum devitrification phenomenon, or the lava is caused by foreign matter in the glass Method of manufacturing glass marble solidified by flowing or hardening, or by mixing ceramic pigments with waste glass fragments, resulting in devitrification of mixed color on waste glass member, or by solidifying free color on glass surface by flowing colors. It is about.

Conventionally, Korean Patent Publication No. 95-9995 has proposed a method of manufacturing glass marble using irregular waste glass to form a random, natural pattern on the surface to express aesthetics close to natural stone on the surface.

It uses specific gravity together with the change of heating temperature using the difference of softening point according to the particle size of glass, and Patent Publication No. 95-9995 discloses at least two or more particle sizes inside a mold in which aluminum oxide is dispersed on the inner bottom. The glass having a distribution is classified according to the size and laminated in a small particle size distribution sequence, and then the heating is gradually applied to a temperature of 100 ° C.-110 ° C., and then the heating is stopped and cooled.

According to the conventional manufacturing method, the glass having a particle size distribution of 10-20 mesh, 1-5 mesh and 3-12 mm in diameter and having three glass particle size distributions is used. 1000-1100 ° C. and a small amount of alumina oxide, antimony trioxide, sodium nitrate, and sodium chloride when the glass particles are laminated.

The glass mixture at the bottom laminated by the particle size of the waste glass in the mold is heated up by the heat of heating, and the glass particles at the top are lowered and the laminated glass particles are replaced by the conventional heating method. As a result, a completely opaque stone wall-like pattern was irregularly formed only on the surface of the glass marble.

In the conventional method for producing glass marble using waste glass, three types of glass particles for preparing glass marble should be selected and collected, and antimony trioxide and sodium nitrate, an antifoaming agent, as a solvent for discoloring the color of the waste glass. And the addition of aluminum oxide, sodium chloride, and other pigments to properly control the melting point of the glass, and the need for mixing the solvents with particles of different sizes and laminating them in the mold in order of particle size. There was an inconvenience in the operation of laminating the glass particles in which the appropriate amounts of the solvents were mixed in size order.

On the other hand, the technique disclosed in Korean Patent Laid-Open Publication No. 97-61813 shredded waste glass to a certain size, put it in a firing furnace, and calcined the glass at a low temperature of 780-890 ° C., thereby causing more devitrification in the glass. Since this method put waste glass into a sealed kiln from the beginning and applied heat, the devitrification phenomenon is increased, resulting in weak adhesion between glass pieces, poor transparency, and a long time of keeping the temperature. .

The present invention has been made to solve the conventional problems has the following object.

First, it is easy to manufacture using glass products, the strength between the glass pieces are fused to each other is improved, and to provide a method of manufacturing glass marble that can be used as a beautiful building materials and decorative materials.

Second, when shaping waste glass shredded to a random size in a laminated state, the crushed glass fragments are translucent and at the same time, the opaque portions due to the devitrification phenomenon coexist in the pattern of the broken glass fragments to produce beautiful color tone. The present invention provides a method for producing a glass marble.

1 is a manufacturing process diagram for the production of waste glass marble of the present invention.

* Explanation of symbols for main parts of the drawings

100 Molding member 101 Release agent 200 Glass member

202 Mold 203 Waste glass piece 205 Breakthrough

300 ... glass marble 400 ... firing furnace

500 ... Molten state

Method for producing waste glass marble of the present invention to achieve the above object is a crushing step of crushing the various waste glass member to a random size;

Washing the crushed glass pieces;

Stacking the crushed waste glass pieces in a mold space;

A heating step of heating the mold so that the glass pieces are fused to each other in a sintering furnace so that a devitrification phenomenon of the fusion portion is shown;

And a slow cooling step of slowly cooling the heated waste glass pieces in a slow cooling furnace.

Here, preferably, by further comprising the step of mixing the ceramic pigment in the scrap glass after the washing step, to form a pattern of various colors in the heating step.

The heating step includes the step of putting the mold into an electric furnace provided with a vent opening that can be opened and closed, the primary heating to 700 ° C to 900 ° C with the vent opening open; It may be made of a secondary heating step of maintaining the temperature in the furnace at 900 ℃ to 1100 ℃. In this case, a small amount of devitrification occurs on the surface of the glass pieces that are fused together, thereby improving strength and increasing transparency.

In addition, after the secondary heating step, the temperature in the electric furnace can be further heated up to 1200 ° C. In this case, the glass pieces are completely melted, and the boundary between each glass pieces is removed, and the foreign material remaining in the cleaned glass is melted. Flowing on the surface, that is, the lava flowing pattern is expressed.

According to the features of the present invention, the production method of the present invention is fused at high temperature, so that the strength between the mutually fused glass pieces is enhanced, transparency is improved, and beautiful patterns can be expressed.

Hereinafter, a manufacturing method according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1, first, the waste glass member 200 collected by collecting the waste glass member 200 made of drinking water bottles, medicine bottles, packaging bottles, etc. and glass plates to be treated as waste after being used in homes or businesses. Collect and shred randomly and wash.

Subsequently, the crushed waste glass pieces are stacked and accommodated in the mold member (template) space.

The mold member 100 is a metal material having good durability and heat resistance, and a mold 102 for producing a rectangular frame like a picture frame, and a release agent 101 for preventing the waste glass pieces 203 deformed by high heat from sticking to the mold. It consists of.

That is, the mold and the glass are stuck to each other at a high temperature and the two materials are different from the slow cooling point as it is cooled, so that the waste glass marble is broken in the cooling process, so that the waste glass pieces 203 and the mold 102 are heated at high temperatures. Since the release agent 101 layer is formed, the heat is blocked.

The release agent 101 is suitable for ceramic paper and gypsum, which is a glass fiber material that is well resistant to high temperatures and has no deformation.

On the other hand, without applying a release agent to the inner peripheral surface of the mold member 100, it may be fixed by mounting a graphite plate.

Place one or several molds 102 to which the release agent 101 is applied to the inner space of the firing furnace 400 provided with a predetermined inner space, and to produce the waste glass pieces 203 in the respective molds. Lamination is carried out so that the upper part of the lamination part is flat. The thickness of the waste glass marble manufactured according to the height of the mold 102 may be selected from 6mm, 12mm, 25mm, 38mm, 50mm.

Thus, the glass pieces laminated to the mold member are heated in the kiln as in the following examples.

1) In case of using electric furnace

The mold member 100 is placed in an electric furnace provided with an openable / closed vent, and first heated to 700 ° C. to 900 ° C. for a predetermined time while the vent is opened. At this time, the foreign matter remaining in the waste glass in the electric furnace is discharged through the vent by the heat that is heated. In this way, the vent is closed while the foreign matter in the electric furnace is discharged, and the temperature is secondarily heated at 900 ° C. to 1100 ° C. for a predetermined time. At such a temperature, the glass pieces are melted at the interface of the glass pieces as a temperature band for melting the glass pieces, and a small amount of devitrification occurs on the inside and the surface of the glass pieces to form a pattern of a predetermined pattern.

In another method of forming a pattern, after the secondary heating step, the temperature in the electric furnace is heated to 1200 ° C so that the glass pieces are completely melted (500). In this case, the remaining foreign substances or foreign substances in the electric furnace are not washed in the washing process and flow as lava flows on the inside and the surface of the molten glass, and when the molten glass is hardened by the flow path of such foreign substances, it is expressed as a pattern. .

2) When using gas fans

Gas furnaces (not shown) employed in the manufacturing method of the present invention, as usual, the injection port for the flame is injected, and the discharge port for supply of oxygen and discharge of smoke is formed. The mold is accommodated in this gas furnace and the temperature is heated to 900 ° C to 1100 ° C. In this case, as in the electric furnace, at this temperature, the glass pieces are completely fused with each other as a boundary surface is formed, and a small amount of devitrification occurs on the inside and the surface of the glass pieces, thereby forming a pattern of a predetermined pattern.

In addition, when the temperature in the gas furnace is heated to 1200 ° C. so that the glass pieces are completely melted, as in the electric furnace, lava flows inside and on the surface of the glass where the foreign substances remaining in the furnace or foreign substances in the electric furnace are not washed in the washing process. This flows and is expressed as a pattern when the molten glass is hardened by the flow path of the foreign matter.

On the other hand, after the washing step by mixing the ceramic pigment 205 fired at about 900 ℃ or more to the waste glass pieces can be manufactured to form a pattern of various colors. That is, when the waste glass pieces in which the dye is mixed together with the crushed glass pieces are heated in the above-described manner using the electric furnace or the gas furnace, various color patterns can be expressed according to the color of the added pigment.

As described above, the molten glass, which has been patterned by a small amount of devitrification and foreign matter or patterned by a pigment, is gradually cooled, and the cooled glass marble 300 is separated from the mold and the surface as desired. Polishing is used as an ornament.

On the other hand, it is needless to say that the present invention is not limited to the above embodiments and can be practiced with many modifications without departing from the spirit and scope of the present application. For example, in the shredding to waste glass pieces, the waste glass bottles may be separated and broken by color or by nature of the waste glass bottles, and the above-described steps may be performed.

The present invention manufacturing method as described above has the following advantages.

First, since the glass can be fused at 900 ° C. to 1100 ° C. and at the same time a pattern of a small amount of devitrification can be expressed, the bonding strength between the glass pieces can be enhanced to be used stably as a decoration.

Second, not only the strength is further enhanced by completely melting at a high temperature of 1200 ° C, but also foreign matter flows in the surface or inside of the molten glass solution as lava flows, thereby making it possible to express a pattern close to natural stone and improve transparency. Increase the merchandise.

Claims (6)

A crushing step of crushing the various waste glass members into a random size; Washing the crushed glass pieces; Stacking the crushed waste glass pieces in a mold space; A heating step of heating the mold so that the glass pieces are fused to each other in a sintering furnace so that a devitrification phenomenon of the fusion portion is shown; And a slow cooling step of slowly cooling the heated waste glass pieces in a slow cooling furnace. The method of claim 1, further comprising mixing ceramic pigments in the waste glass pieces after the washing step, so that patterns of various colors are formed in the heating step. The method of claim 1, wherein the heating step comprises the steps of: heating the mold in an electric furnace provided with a vent opening capable of opening and closing a firing furnace, and heating the mold to 700 ° C. to 900 ° C. with the vent opening open; Method of producing a glass marble, characterized in that consisting of a secondary heating step of maintaining the temperature in the furnace at 900 ℃ to 1100 ℃. The method of claim 3, wherein after the secondary heating step, the temperature in the electric furnace is further heated to 1200 ° C. The method of claim 1, wherein the heating step comprises placing the mold in a gas furnace which is a kiln and heating the temperature to 900 ° C to 1100 ° C. The method of claim 5, wherein the mold is further heated to 1200 ° C. 7.