JP2900456B2 - Float sheet glass manufacturing equipment - Google Patents
Float sheet glass manufacturing equipmentInfo
- Publication number
- JP2900456B2 JP2900456B2 JP1333076A JP33307689A JP2900456B2 JP 2900456 B2 JP2900456 B2 JP 2900456B2 JP 1333076 A JP1333076 A JP 1333076A JP 33307689 A JP33307689 A JP 33307689A JP 2900456 B2 JP2900456 B2 JP 2900456B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- float
- glass ribbon
- molten tin
- molten metal
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000005357 flat glass Substances 0.000 title claims description 12
- 239000011521 glass Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 6
- 239000005329 float glass Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 229910052799 carbon Inorganic materials 0.000 description 14
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 7
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 or the like Chemical compound 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003466 welding Methods 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
-
- 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
- C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
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］ 本発明はフロート板硝子製造装置に係り、特に対流調
節部材によりフロートバス内の溶融金属（通常は錫）の
対流量を調節するウィヤの設置構造を改良するようにし
たフロート板硝子製造装置の改良に関する。Description: FIELD OF THE INVENTION The present invention relates to a float glass manufacturing apparatus, and more particularly to a wire installation structure for adjusting a convection flow rate of molten metal (usually tin) in a float bath by a convection adjusting member. The present invention relates to an improvement in a float plate glass manufacturing apparatus that improves the above.
［従来の技術］ フロートバス内の溶融金属上にガラスをシート状にフ
ロートさせ、このガラスを一方向に移動させフロートバ
スの一端側から引き上げるようにしたフロート板ガラス
法は従来から広く行なわれている。このフロートバス内
の溶融金属としては、通常の場合錫が用いられている。[Prior Art] A float plate glass method in which glass is floated on a molten metal in a float bath in a sheet shape, the glass is moved in one direction and pulled up from one end of the float bath, and the float plate glass method has been widely used. . As the molten metal in the float bath, tin is usually used.
第８図はフロートバス１の平面図、第９図は第８図の
IX−IX線に沿う縦断面図であり、２は溶融錫、３はガラ
スリボンを示す。FIG. 8 is a plan view of the float bath 1, and FIG.
It is a longitudinal cross-sectional view which follows the IX-IX line, 2 shows molten tin, 3 shows a glass ribbon.
この種のフロートバス１において、溶融錫２はガラス
リボンの直下にあってはガラスリボン３の移動に伴って
フロートバスのコールドエンド1cに向って流れる。コー
ルドエンド1cに達した溶融錫２は、出口側の内壁面（イ
グジットリップ）で反転して上流に向う流れとなる。こ
の反転流れには二種類のものがあり、一方は第９図の如
くバスボトム1bに沿う流れであり、他方はバスサイドウ
ォール1Wに沿う流れである。In this type of float bath 1, molten tin 2 immediately below the glass ribbon flows along with the movement of the glass ribbon 3 toward the cold end 1 c of the float bath. The molten tin 2 that has reached the cold end 1c reverses on the inner wall surface (exit lip) on the outlet side and flows upstream. There are two types of this inversion flow, one is a flow along the bus bottom 1b as shown in FIG. 9, and the other is a flow along the bus sidewall 1W.
かかる溶融錫の対流が著しいと溶融錫に温度ムラが生
じ、ガラスリボンの伸びを悪化させたり、引伸し領域全
体を冷やしてしまい加熱量を増加させる必要が生じたり
するという問題が発生する。If such convection of the molten tin is remarkable, the temperature of the molten tin becomes uneven, which causes a problem that the elongation of the glass ribbon is deteriorated or that the entire stretched area is cooled to increase the heating amount.
そこで、溶融錫の対流を抑制するためにフロートバス
内に溶融錫の対流調節部材を設置することが行なわれて
いる（例えば特公昭55−49017号）。Therefore, in order to suppress the convection of the molten tin, a convection regulating member for the molten tin has been installed in the float bath (for example, Japanese Patent Publication No. 55-49017).
バスサイドウォール1wに沿う溶融錫の対流を抑制する
ための従来例を第７図に示す。４はウィヤと称される板
状部材であり、支持棒５に支持されてフロートバス１の
溶融錫２にその下部側が浸漬されている。このウィヤ４
は、バスサイドウォール１からガラスリボン３の移動方
向と直交方向に延在されている。FIG. 7 shows a conventional example for suppressing the convection of molten tin along the bus sidewall 1w. Reference numeral 4 denotes a plate-like member called a wire, which is supported by a support rod 5 and immersed in the molten tin 2 of the float bath 1 on its lower side. This weir 4
Extends from the bus sidewall 1 in a direction orthogonal to the moving direction of the glass ribbon 3.
第７図から明らかな通り、従来のウィヤ４は、その上
部側が溶融錫２から突出している。また、ウィヤ４の延
在方向の先端側4aは、ガラスリボン３に当らないように
ガラスリボン３の側縁（リボンエッジ）3aから離隔され
ている。As is apparent from FIG. 7, the conventional wire 4 has an upper side projecting from the molten tin 2. The distal end 4a in the extending direction of the wire 4 is separated from the side edge (ribbon edge) 3a of the glass ribbon 3 so as not to hit the glass ribbon 3.
［発明が解決しようとする課題］ 上記従来のウィヤ４の設置構造にあっては、ウィヤ４
が溶融錫２の液面から突出しており、バスサイドウォー
ル1wに沿う溶融錫の流れはすべてウィヤ４を回り込むも
のとなる。この結果、ウィヤ４とバスサイドウォール1w
との交叉隅部のうち溶融錫の流れ方向上流側及び下流側
にあっては溶融錫の滞留域が生じ、この部分でドロス
（主として酸化物よりなる汚濁物質）が沈積し易い。そ
して、当該部分はバス内でも比較的低温であり、ドロス
が還元されにくいため、ドロスが次第に蓄積し、遂には
コンタミネーションデフェクトを発生させる。[Problem to be Solved by the Invention] In the above-described conventional wire 4 installation structure, the wire 4
Protrudes from the liquid surface of the molten tin 2, and the flow of the molten tin along the bus sidewall 1 w is all around the wire 4. As a result, the weir 4 and the bus sidewall 1w
A molten tin stagnation region is formed at the upstream and downstream sides of the flow direction of the molten tin in the corners where the molten tin flows, and dross (contaminant mainly composed of oxides) is liable to deposit in this region. Then, the portion is relatively low temperature even in the bath, and dross is not easily reduced, so that the dross gradually accumulates, and finally, a contamination defect occurs.
また、従来のウィヤの設置構造では、ウィヤ４の先端
4aをガラスリボン３からある程度離隔させ、ウィヤ４と
ガラスリボン３との接触を防止する必要がある。このた
め、ウィヤ４の先端4aを低温の溶融錫が回り込み、ガラ
スリボン３の側縁部（リボンエッジ）を冷却してしまう
という問題があった。In the conventional wire installation structure, the tip of the wire 4
4a needs to be separated from the glass ribbon 3 to some extent to prevent contact between the wire 4 and the glass ribbon 3. For this reason, there has been a problem that low-temperature molten tin wraps around the tip 4a of the wire 4 and cools the side edge (ribbon edge) of the glass ribbon 3.
さらに、従来のウィヤの設置構造では支持棒５による
下方への押え付け力が不足し、溶融錫２から受ける浮力
によりウィヤ４が浮き上ってしまうことがあった。Furthermore, in the conventional wire installation structure, the pressing force of the support bar 5 downward is insufficient, and the wire 4 may rise due to the buoyancy received from the molten tin 2.
なお、この場合、支持棒５として冷却機構付きの鋼材
を用いれば、ウィヤ４を強力に支持でき、ウィヤ４の浮
き上りを防止できるが、このようにするとガラスリボン
３の幅方向の温度差が大きくなるという不利がある。冷
却機構のない鋼材を支持棒５として用いた場合には、支
持棒がクリープ変形し、ウィヤ４が浮き上る。In this case, if a steel material with a cooling mechanism is used as the support rod 5, the wire 4 can be strongly supported and the wire 4 can be prevented from rising. In this case, the temperature difference in the width direction of the glass ribbon 3 is reduced. There is a disadvantage that it becomes larger. When a steel material without a cooling mechanism is used as the support bar 5, the support bar undergoes creep deformation and the wire 4 rises.
［課題を解決するための手段］ 請求項１のフロート板硝子製造装置は、ウィヤの上面
が溶融錫などの溶融金属の液面よりも低くなるようにウ
ィヤを設けたものである。[Means for Solving the Problems] The float plate glass manufacturing apparatus according to claim 1 is provided with a wire so that the upper surface of the wire is lower than the liquid level of molten metal such as molten tin.
請求項２のフロート板硝子製造装置は、請求項１の装
置において、ウィヤの先端がガラスリボンの側縁の直近
ないしは下側に位置するようにウィヤを延設したもので
ある。According to a second aspect of the present invention, there is provided a float glass manufacturing apparatus according to the first aspect, wherein the wire is extended so that the leading end of the wire is located immediately near or below the side edge of the glass ribbon.
請求項３のフロート板硝子製造装置は、請求項１又は
２のものにおいてウィヤを中空構造とし、その内部に溶
融金属を入り込ませるようにしたものである。According to a third aspect of the present invention, there is provided a float plate glass manufacturing apparatus according to the first or second aspect, wherein the wire has a hollow structure, and a molten metal enters the inside.
［作用］ 請求項１のフロート板硝子製造装置においては、バス
サイドウォール1wに沿う溶融金属の流れのうちの一部の
ものがウィヤを乗り越えて流れるようになる。このた
め、バスサイドウォールとウィヤとの交叉隅部にも溶融
金属が十分に流れ込むようになり、溶融金属の局部的な
滞留が防止される。そして、この結果、ドロスの蓄積も
解消される。[Operation] In the float plate glass manufacturing apparatus according to claim 1, a part of the flow of the molten metal along the bus sidewall 1w flows over the wire. For this reason, the molten metal sufficiently flows into the intersection between the bus sidewall and the wire, thereby preventing local accumulation of the molten metal. As a result, the accumulation of dross is also eliminated.
請求項２のフロート板硝子製造装置によると、バスサ
イドウォールに沿う溶融金属の流れが全て又は殆ど全て
ガラスリボンの下側を回り込むようになり、リボンエッ
ジの冷却が防止される。According to the float plate glass manufacturing apparatus of the present invention, all or almost all of the flow of the molten metal along the bus sidewall goes around the lower side of the glass ribbon, and the cooling of the ribbon edge is prevented.
請求項３によると、ウィヤが溶融金属から受ける浮力
が小さくなり、ウィヤの浮き上りが防止されるようにな
る。According to the third aspect, the buoyancy that the wire receives from the molten metal is reduced, and the lifting of the wire is prevented.
［実施例］ 第１図は本発明の実施例に係るフロート板硝子製造装
置の要部断面図（バスの幅方向の断面であって、バスサ
イドウォール近傍の断面を示す。）である。図示の如
く、本実施例では、ウィヤ４の上面が溶融錫２の液面よ
りも下方となるようにウィヤ４が設けられている。これ
により、ウィヤ４とバスサイドウォール1wとの交叉隅部
のうち溶融錫２の流れ方向下流側の部分に対しても、ウ
ィヤ４を乗り越えた溶融錫２が流れ込むようになるの
で、当該部分でのドロスの蓄積が防止される。Embodiment FIG. 1 is a cross-sectional view of a main part of a float glass manufacturing apparatus according to an embodiment of the present invention (a cross section in a width direction of a bus, showing a cross section near a bus sidewall). As shown, in this embodiment, the wire 4 is provided so that the upper surface of the wire 4 is lower than the liquid level of the molten tin 2. As a result, the molten tin 2 that has passed over the wire 4 flows into the portion of the intersection between the wire 4 and the bus sidewall 1w on the downstream side in the flow direction of the molten tin 2. The accumulation of dross is prevented.
本実施例にあっては、ウィヤ４の先端4aがガラスリボ
ン３の下側に潜り込むようにウィヤ４が延設されてい
る。これにより、バスサイドウォール1wに沿う溶融錫の
流れがすべてガラスリボン３の下側に入り込むようにな
るので、リボンエッジ3aのみの冷却が防止され、ガラス
リボン全幅の温度がより均一になる。In the present embodiment, the wire 4 is extended so that the tip 4a of the wire 4 goes under the glass ribbon 3. As a result, all the flow of the molten tin along the bus sidewall 1w enters the lower side of the glass ribbon 3, so that cooling of only the ribbon edge 3a is prevented, and the temperature of the entire width of the glass ribbon becomes more uniform.
本発明にあっては、ウィヤ４の上面と溶融錫２の液面
との間隔ｈは３〜20mm程度が好適である。なお、図の寸
法ａが100mm、ｈが5mmとなるようにウィヤ４を設置した
ところ、バスサイドウォール1wとウィヤ４の下流側の交
叉隅部付近の溶融錫の温度が従来（ウィヤ４が溶融錫液
面から突出し、ウィヤ先端4aがリボンエッジ3aから約10
0mm離れている。）に比べ約10℃上昇し、ドロスも全く
蓄積しなかった。In the present invention, the distance h between the upper surface of the wire 4 and the liquid surface of the molten tin 2 is preferably about 3 to 20 mm. When the wire 4 was set so that the dimension a in the figure was 100 mm and h was 5 mm, the temperature of the molten tin near the intersection corner on the downstream side of the bus sidewall 1w and the wire 4 was changed to the conventional temperature (the wire 4 was melted). The wire tip protrudes from the tin liquid level, and the wire tip 4a is about 10
0mm away. ), And dross did not accumulate at all.
本発明では、図示はしないが、ウィヤ４の先端4aがリ
ボンエッジ3aの直近に位置するようにウィヤ４を設けて
も良い。また、第２図の如くウィヤ４の先端側の部分の
上面に凹部4bを設け、溶融錫の流れ抑制効果を調節して
も良い。In the present invention, although not shown, the wire 4 may be provided so that the tip 4a of the wire 4 is located immediately near the ribbon edge 3a. Further, as shown in FIG. 2, a concave portion 4b may be provided on the upper surface of the portion on the tip side of the wire 4 to adjust the effect of suppressing the flow of molten tin.
ウィヤ４を溶融錫２に沈めるためには、ウィヤ４の外
殻部分をカーボンや炭化珪素等とし、内部にタングステ
ンを入れたものにすれば良いが、カーボン（グラファイ
ト質、以下同様）、炭化珪素あるいはカーボン繊維強化
カーボンや炭化珪素繊維強化炭化珪素（好ましくは、強
度の高い後者の繊維強化カーボン又は炭化珪素）などで
外殻部分を作り、内部に溶融錫を流入させるようにした
ものがきわめて好適である。この場合、カーボンや炭化
珪素の比重は溶融錫の比重よりも小さいから、ウィヤは
溶融錫の浮力により浮上しようとするが、外殻部分のみ
がカーボンや炭化珪素であるため浮力はきわめて小さ
く、上から軽く押えるだけでウィヤの浮上を防止でき
る。In order to submerge the wire 4 in the molten tin 2, the outer shell of the wire 4 may be made of carbon, silicon carbide, or the like, and tungsten may be put in the inside. However, carbon (graphite, hereinafter the same), silicon carbide Alternatively, an outer shell made of carbon fiber reinforced carbon or silicon carbide fiber reinforced silicon carbide (preferably, the latter high-strength fiber reinforced carbon or silicon carbide) or the like, and molten tin is allowed to flow into the inside is extremely suitable. It is. In this case, since the specific gravity of carbon or silicon carbide is smaller than the specific gravity of molten tin, the wire tends to float by the buoyancy of the molten tin, but the buoyancy is extremely small because only the outer shell is made of carbon or silicon carbide. Floating of the wire can be prevented simply by pressing lightly.
第３、４図はこのようなウィヤの支持構造を示す断面
図であり、ウィヤ４は角筒状とされている。このウィヤ
４の上面にカーボン製のＩビーム７がカーボン製ボルト
・ナット８により固着され、該Ｉビーム７がステンレス
板９に対しステンレス製ボルト・ナット10により固着さ
れている。ステンレス板９はステンレスパイプ11に溶接
により結合されている。FIGS. 3 and 4 are cross-sectional views showing a structure for supporting such a wire, and the wire 4 has a rectangular cylindrical shape. A carbon I-beam 7 is fixed to the upper surface of the wire 4 by a carbon bolt and nut 8, and the I-beam 7 is fixed to a stainless steel plate 9 by a stainless bolt and nut 10. The stainless plate 9 is connected to the stainless pipe 11 by welding.
ウィヤは第５図の如く円筒形であっても良く、この場
合には円弧形凹曲面付きのカーボン片12をウィヤ４にカ
ーボン接着剤で接着し、このカーボン片12をカーボン製
Ｉビーム７に接着するのが好適である。The wire may be cylindrical as shown in FIG. 5. In this case, a carbon piece 12 having an arc-shaped concave curved surface is bonded to the wire 4 with a carbon adhesive, and the carbon piece 12 is attached to the carbon I-beam 7. It is preferred to adhere to the surface.
なお、第３、４図において1000×55×55、肉厚1.5m/m
カーボン繊維強化カーボンの場合、浮力は （5.5×5.5−5.2×5.2）×100×（6.8−1.6）＝1669.2g である。3 and 4, 1000 × 55 × 55, wall thickness 1.5m / m
In the case of carbon fiber reinforced carbon, the buoyancy is (5.5 x 5.5-5.2 x 5.2) x 100 x (6.8-1.6) = 1669.2g.
また、第５図において1000×55×59、肉厚1.5m/mカー
ボン繊維強化カーボンの場合、浮力は であり、いずれも2kg弱の力でウィヤをバスボトム1bに
押え込める。In the case of 1000 × 55 × 59 and 1.5 m / m carbon fiber reinforced carbon in FIG. 5, the buoyancy is In each case, the weir is pressed into the bath bottom 1b with less than 2kg of force.
なお、本発明では第６図（ａ）に示すコ字形あるいは
第６図（ｂ）に示すＵ字形断面形状あるいは半円形、半
楕円形、山形（いずれも図示略）など各種形状のウィヤ
を用い得る。In the present invention, wires having various shapes such as a U-shape shown in FIG. 6 (a), a U-shaped cross-sectional shape shown in FIG. 6 (b), a semicircle, a semi-ellipse, and a mountain (all not shown) are used. obtain.
［効果］ 以上の通り、本発明によるとドロスの蓄積を防止でき
る。また、リボンエッジの冷却を解消できる。さらにウ
ィヤの浮き上りも簡単に防止できる。[Effects] As described above, according to the present invention, accumulation of dross can be prevented. Further, cooling of the ribbon edge can be eliminated. Furthermore, lifting of the wire can be easily prevented.
第１図、第２図及び第３図は実施例を示す断面図、第４
図は第３図のIV−IV線断面図、第５図及び第６図はウィ
ヤの側面図、第７図は従来例の断面図、第８図はフロー
トバスの平面図、第９図は第８図のIX−IX線断面図であ
る。 １……フロートバス、２……溶融錫 ３……ガラスリボン、４……ウィヤ。FIGS. 1, 2 and 3 are sectional views showing an embodiment, and FIGS.
FIG. 5 is a sectional view taken along line IV-IV of FIG. 3, FIGS. 5 and 6 are side views of the wire, FIG. 7 is a sectional view of a conventional example, FIG. 8 is a plan view of a float bath, and FIG. FIG. 9 is a sectional view taken along line IX-IX of FIG. 1 Float bath 2 Fused tin 3 Glass ribbon 4 Weir
Claims (3)
ンをシート状にフロートさせ、該ガラスリボンを一方向
に移動させ、フロートバスの一端側において溶融金属上
から引き上げるフロート板硝子製造装置であって、前記
フロートバス内にはバスサイドウォールから前記ガラス
リボンの移動方向と交叉する方向に延在する溶融金属の
対流調節用のウィヤが配置されているフロート板硝子製
造装置において、 前記ウィヤの上面を溶融金属の液面よりも低くしたこと
を特徴とするフロート板硝子製造装置。An apparatus for manufacturing a float plate glass in which a glass ribbon is floated in a sheet shape on a molten metal in a float bath, the glass ribbon is moved in one direction, and pulled up from the molten metal at one end of the float bath. A float plate glass manufacturing apparatus in which a wire for controlling convection of molten metal extending from a bus sidewall in a direction intersecting with a moving direction of the glass ribbon is arranged in the float bath, wherein an upper surface of the wire is melted. A float plate glass manufacturing apparatus characterized in that the float level is lower than the liquid level of the metal.
をガラスリボンオの側縁の直近ないしはガラスリボンの
下側に位置させたことを特徴とする特許請求の範囲第１
項記載のフロート板硝子製造装置。2. The method according to claim 1, wherein the portion of the wire on the leading end side in the extending direction is located immediately adjacent to a side edge of the glass ribbon or below the glass ribbon.
Item 6. The float plate glass manufacturing apparatus according to the above item.
融金属が入り込んでいることを特徴とする特許請求の範
囲第１項又は第２項に記載のフロート板硝子製造装置。3. The float glass manufacturing apparatus according to claim 1, wherein the wire is a hollow structure, and a molten metal enters therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333076A JP2900456B2 (en) | 1989-12-22 | 1989-12-22 | Float sheet glass manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333076A JP2900456B2 (en) | 1989-12-22 | 1989-12-22 | Float sheet glass manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03193631A JPH03193631A (en) | 1991-08-23 |
| JP2900456B2 true JP2900456B2 (en) | 1999-06-02 |
Family
ID=18261998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1333076A Expired - Lifetime JP2900456B2 (en) | 1989-12-22 | 1989-12-22 | Float sheet glass manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2900456B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167377A (en) * | 1992-11-27 | 1994-06-14 | Central Glass Co Ltd | Level measuring method for molten tin in float bath |
| WO2013088894A1 (en) * | 2011-12-15 | 2013-06-20 | 旭硝子株式会社 | Method for molding float glass sheet and device for molding float glass sheet |
| CN102583968A (en) * | 2012-01-19 | 2012-07-18 | 河南国控宇飞电子玻璃有限公司 | Skimming machine for producing ultra-thin glass |
-
1989
- 1989-12-22 JP JP1333076A patent/JP2900456B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03193631A (en) | 1991-08-23 |
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