JPH0429614B2 - - Google Patents
Info
- Publication number
- JPH0429614B2 JPH0429614B2 JP59131762A JP13176284A JPH0429614B2 JP H0429614 B2 JPH0429614 B2 JP H0429614B2 JP 59131762 A JP59131762 A JP 59131762A JP 13176284 A JP13176284 A JP 13176284A JP H0429614 B2 JPH0429614 B2 JP H0429614B2
- Authority
- JP
- Japan
- Prior art keywords
- molten tin
- tin
- brick
- bricks
- insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 34
- 239000011449 brick Substances 0.000 claims description 27
- 239000011148 porous material Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000005357 flat glass Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/16—Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はフロート法に用いられる板ガラス製造
用溶融錫浴の保温構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat-retaining structure for a molten tin bath for producing plate glass used in the float method.
フロート法に用いられる溶融錫浴１は第２図に
示すように鋼製ケーシング２の内面を内貼煉瓦３
でライニングし、その中に溶融錫４が満されてい
る。しかし鋼は高温の溶融錫（例えば800℃以上）
に対して極めて容易い溶けるので、内貼煉瓦目地
を通つて来る溶融錫による溶損を避けるためにケ
ーシング外表面に冷風を吹きつけ冷却している。
このために錫浴においては熱経済的に極めて無駄
が多い。
A molten tin bath 1 used in the float method is used to coat the inner surface of a steel casing 2 with inner bricks 3, as shown in FIG.
The lining is filled with molten tin 4. However, steel is made of high-temperature molten tin (e.g. over 800℃).
Since tin melts extremely easily, the outer surface of the casing is cooled by blowing cold air to avoid erosion caused by molten tin coming through the inner brick joints.
For this reason, tin baths are extremely wasteful thermoeconomically.
熱の無駄を避けるために、錫浴を保温すること
は従来から考えられているが、高温に耐えかつ溶
融錫の侵食に耐える断熱材の殆んどは通気性を有
するので内部に溶融錫が浸透し断熱性能を失つて
しまう。また例えば断熱キヤスタブル耐火物の如
く、通気性を有さない断熱材をケーシングと内貼
煉瓦の間隙に充填することが考えられる。しかし
ながら通気性を有しない物質で内貼煉瓦外周を覆
つてしまうと、錫浴を還元性に保つための雰囲気
中のH2ガスが内貼煉瓦の気孔や目地から内貼煉
瓦内部を浸透移動し、高温部に集中・飽和し、気
泡となつて溶融錫中を浮上し、製品に欠点をもた
らすという現象が生じる。したがつて従来の錫浴
は外側を厳重に保温するどころか、わざわざ内貼
煉瓦に通気性を持たせ、浸透したH2ガスを外部
に放出させるようにしている。
In order to avoid wasting heat, it has been considered to keep the tin bath warm, but most insulation materials that can withstand high temperatures and resist the attack of molten tin are breathable, so molten tin does not get inside. It penetrates and loses its insulation properties. It is also conceivable to fill the gap between the casing and the lining brick with a non-breathable heat insulating material, such as a heat insulating castable refractory. However, if the outer periphery of the lining brick is covered with a substance that does not have air permeability, the H2 gas in the atmosphere to keep the tin bath reducing will permeate and move inside the lining brick through the pores and joints of the lining brick. A phenomenon occurs in which the metal concentrates and saturates in the high-temperature area, becomes bubbles, floats in the molten tin, and causes defects in the product. Therefore, instead of strictly insulating the outside of the tin bath, conventional tin baths deliberately make the inner bricks permeable to allow the permeated H2 gas to escape to the outside.
本発明の目的は、前記した欠点の発生を防ぐと
ともに十分に保温して熱経済性の優れた錫浴を提
供することにあり、その構成は「内貼煉瓦の外面
に無機質接着剤を介して連続気孔を有する断熱煉
瓦を接着した板ガラス製造用溶融錫浴」にある。
The purpose of the present invention is to provide a tin bath that prevents the above-mentioned drawbacks, retains heat sufficiently, and has excellent thermoeconomic efficiency. ``Molten tin bath for manufacturing plate glass bonded with insulating bricks having continuous pores.''
本発明は無機接着剤を介して連続気孔を有する
断熱煉瓦を接着することにより断熱煉瓦表面に通
気性はあるが溶融錫を通さない被覆を形成するこ
とにある。このようにすることにより、溶融錫の
断熱煉瓦中への浸透を防ぎ断熱性能の低下を防止
するとともに溶融錫のケーシングとの接触を絶つ
ことができるので、ケーシングの強制冷却は不用
となり、かつ溶融錫温低下も防がれるので、錫浴
加熱に必要なエネルギーも大巾に節減できる。
The object of the present invention is to bond insulating bricks having continuous pores with an inorganic adhesive to form a coating on the surface of the insulating bricks that is air permeable but impermeable to molten tin. By doing this, it is possible to prevent molten tin from penetrating into the insulation bricks, prevent deterioration of insulation performance, and cut off contact between molten tin and the casing, which eliminates the need for forced cooling of the casing. Since the tin temperature is also prevented from dropping, the energy required to heat the tin bath can be greatly reduced.
〔実施例〕
以下に第１図に用いて本発明実施例を更に詳し
く説明する。[Example] An example of the present invention will be described in more detail below with reference to FIG.
鋼製ケーシング２内面に厚さ５cm、熱伝導率
0.59Kcal／mhr℃の断熱煉瓦６の上面を除く全面
にアルミナセメントスラリーを塗布し敷きつめ、
更にその上面にアルミナセメントスラリーを塗布
した上に内貼煉瓦３をセツトした。かくして形成
された浴槽を十分乾燥させた後溶融錫を満し、板
ガラス製造用錫浴として１年半の試験使用に供し
た。この間ケーシングの外表面温度は300℃以下
で冷却してやる必要は全くなく、かつ使用中、内
貼煉瓦からの気泡浮上による欠点の発生は極めて
稀で、十分に使用に耐えるものであつた。また１
年半の使用後、溶融錫を抜いて解体してみたとこ
ろ、錫は内貼煉瓦目地部において、内貼煉瓦下端
まで浸透していたが、断熱煉瓦気孔内または断熱
煉瓦目地内への浸透はアルミナセメント層６によ
つて完全に喰止められていた。断熱煉瓦を割つて
破面を観察したところ、表面から深さ約10mmまで
アルミナセメントが気孔中を浸透一体化してお
り、この層の存在により、例え接着剤層に亀裂な
いしは剥離が生じても溶融錫の断熱煉瓦中浸透は
防げると考えられる。 Steel casing 2 inner surface has a thickness of 5 cm and thermal conductivity.
Apply alumina cement slurry to the entire surface of the 0.59Kcal/mhr℃ insulation brick 6 except for the top surface, and spread it tightly.
Further, an alumina cement slurry was applied to the upper surface thereof, and then the inner lining brick 3 was set. After thoroughly drying the bathtub thus formed, it was filled with molten tin and was used as a tin bath for producing plate glass for one and a half years. During this period, the outer surface temperature of the casing was below 300°C, and there was no need to cool it at all, and during use, defects due to floating air bubbles from the lining bricks were extremely rare, and the product was sufficiently usable. Also 1
After a year and a half of use, when we removed the molten tin and dismantled it, we found that tin had permeated to the bottom of the inner brick joints, but tin had not penetrated into the pores of the insulation bricks or into the joints of the insulation bricks. It was completely blocked by the alumina cement layer 6. When we cracked an insulating brick and observed the fractured surface, we found that alumina cement had penetrated into the pores to a depth of about 10 mm from the surface, and because of the presence of this layer, even if the adhesive layer cracked or peeled off, it would not melt. It is thought that penetration of tin into the insulation brick can be prevented.
本発明に用いられる無機接着剤としては前記ア
ルミナセメントの他にシリカ−アルミナ系、シリ
カ−アルミナ−ジルコニア系等の耐熱性の無機質
微粉末を水、アルコール、燐酸等の液体に懸濁さ
せたものが用いられる。これら無機質接着剤は接
着後乾燥した後高温に加熱されるので前記微粉末
同志又は内貼煉瓦や断熱煉瓦と焼結し、強固な接
着剤の層を形成する。しかし接着剤層自身は厚さ
が薄いので、通気性は有するが溶融錫は通さない
という理想的な皮膜となる。 In addition to the alumina cement mentioned above, the inorganic adhesive used in the present invention is a heat-resistant inorganic fine powder such as silica-alumina type or silica-alumina-zirconia type suspended in a liquid such as water, alcohol, or phosphoric acid. is used. These inorganic adhesives are dried after bonding and then heated to a high temperature, so that they are sintered with the fine powder or with the lining bricks and insulation bricks to form a strong adhesive layer. However, since the adhesive layer itself is thin, it becomes an ideal film that has air permeability but does not allow molten tin to pass through.
また断熱煉瓦には高温下で錫および内貼煉瓦の
荷重を支える必要上耐熱性および圧縮強度に優れ
たものが必要で、例えば1000℃における圧縮強度
が0.3Kg／cm2以上が要求される。また通気性も要
求されるので、連続気孔を有していることが必要
である。 Insulating bricks are required to have excellent heat resistance and compressive strength in order to support the load of tin and lining bricks at high temperatures; for example, a compressive strength of 0.3 kg/cm 2 or more at 1000°C is required. Since breathability is also required, it is necessary to have continuous pores.
第１図は本発明の溶融錫浴の板ガラス進行方向
から見た断面、第２図は従来の溶融錫浴断面、２
……ケーシング、３……内貼煉瓦、４……溶融
錫、５……断熱煉瓦、６……無機接着剤である。
Figure 1 is a cross section of the molten tin bath of the present invention as seen from the direction of glass plate travel, and Figure 2 is a cross section of a conventional molten tin bath.
... Casing, 3... Inner brick, 4... Molten tin, 5... Insulating brick, 6... Inorganic adhesive.
Claims (1)
通さない無機質接着剤を介して連続気孔を有する
断熱煉瓦を接着した板ガラス用溶融錫浴。1. A molten tin bath for plate glass in which a heat insulating brick having continuous pores is adhered to the outer surface of the inner brick through an inorganic adhesive that has air permeability but does not allow molten tin to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13176284A JPS6110035A (en) | 1984-06-26 | 1984-06-26 | Melted tin bath for making flat glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13176284A JPS6110035A (en) | 1984-06-26 | 1984-06-26 | Melted tin bath for making flat glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6110035A JPS6110035A (en) | 1986-01-17 |
| JPH0429614B2 true JPH0429614B2 (en) | 1992-05-19 |
Family
ID=15065576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13176284A Granted JPS6110035A (en) | 1984-06-26 | 1984-06-26 | Melted tin bath for making flat glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6110035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012060197A1 (en) | 2010-11-04 | 2012-05-10 | 旭硝子株式会社 | Method for producing float plate glass and apparatus for producing float plate glass |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6421038B1 (en) | 1998-09-19 | 2002-07-16 | Lg. Philips Lcd Co., Ltd. | Active matrix liquid crystal display |
| KR101383604B1 (en) * | 2010-08-12 | 2014-04-11 | 주식회사 엘지화학 | Float bath for manufacturing float glass ＆ cooling method of the same |
| CN102765870B (en) * | 2011-05-04 | 2014-08-20 | 信义电子玻璃（芜湖）有限公司 | Inner liner fixing structure for glass furnace tin bath and fixing method |
| CN104986944B (en) * | 2015-08-06 | 2017-03-29 | 蚌埠玻璃工业设计研究院 | A kind of side fastening tool of bottom brick of molten tin bath |
| CN104986945B (en) * | 2015-08-06 | 2017-03-29 | 蚌埠玻璃工业设计研究院 | A kind of bottom brick of molten tin bath side clamp device of tooth engagement |
| CN107399903A (en) * | 2017-09-08 | 2017-11-28 | 蚌埠玻璃工业设计研究院 | A kind of electronical display float flat glass glues tin slowing device |
-
1984
- 1984-06-26 JP JP13176284A patent/JPS6110035A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012060197A1 (en) | 2010-11-04 | 2012-05-10 | 旭硝子株式会社 | Method for producing float plate glass and apparatus for producing float plate glass |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6110035A (en) | 1986-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |