JP2000072463A - Method for tempering glass sheet and tempering apparatus therefor - Google Patents
Method for tempering glass sheet and tempering apparatus thereforInfo
- Publication number
- JP2000072463A JP2000072463A JP10236033A JP23603398A JP2000072463A JP 2000072463 A JP2000072463 A JP 2000072463A JP 10236033 A JP10236033 A JP 10236033A JP 23603398 A JP23603398 A JP 23603398A JP 2000072463 A JP2000072463 A JP 2000072463A
- Authority
- JP
- Japan
- Prior art keywords
- glass sheet
- cooling air
- glass plate
- discharge
- strengthening
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0417—Controlling or regulating for flat or bent glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
- C03B27/048—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position on a gas cushion
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、加熱されたガラス
板を冷却して強化処理するためのガラス板の強化方法お
よび強化装置に関し、特に板厚の薄いガラス板を強化処
理するためのガラス板の強化方法および強化装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for strengthening a glass sheet for cooling and strengthening a heated glass sheet, and more particularly, to a glass sheet for strengthening a thin glass sheet. And a reinforcing device.
【０００２】[0002]
【従来の技術】従来、自動車およびその他に用いられて
いる曲面ガラス板の強化方法として、図４に示すよう
に、冷却風が噴出する複数のノズル１を格子状あるいは
千鳥状などに配置させた風箱２、３を、上下に所要の間
隔を有して対向するように配置したものがある。2. Description of the Related Art Conventionally, as a method of strengthening a curved glass plate used in automobiles and other devices, as shown in FIG. 4, a plurality of nozzles 1 from which cooling air is jetted are arranged in a grid or staggered shape. In some cases, the wind boxes 2 and 3 are arranged so as to face each other at a required interval vertically.
【０００３】ガラス板４は軟化点付近の温度まで加熱さ
れ、さらに所要の方法にて曲げ加工が施された後、前記
上下の風箱２、３間に図４の紙面と直角方向に搬入され
て前記ノズル１の吹口から噴流状に吹き付けられる冷却
風５により両表面が急冷される。この冷却風５を吹き付
けることによる冷却によって、ガラス板４の内外面に温
度差がつけられ、最終的に固化されたガラス板４表面に
圧縮応力層が残存されることによって、ガラス板４が強
化処理される。前記ノズル１からガラス板４の両表面に
吹き付けられた後の冷却風５は、ガラス板４の平面に沿
うようにノズル１の間を通って側部外方に排出される。The glass plate 4 is heated to a temperature near the softening point, and after being bent by a required method, is carried between the upper and lower wind boxes 2 and 3 in a direction perpendicular to the plane of FIG. Thus, both surfaces are rapidly cooled by the cooling air 5 blown from the outlet of the nozzle 1 in the form of a jet. The cooling by blowing the cooling air 5 causes a temperature difference between the inner and outer surfaces of the glass sheet 4, and a compressive stress layer remains on the finally solidified glass sheet 4 surface, thereby strengthening the glass sheet 4. It is processed. The cooling air 5 blown from the nozzle 1 to both surfaces of the glass plate 4 is discharged to the side outside through the space between the nozzles 1 along the plane of the glass plate 4.
【０００４】この場合、前記ガラス板４が風箱２、３の
ノズル１、１間に浮いた状態に保持されながら、上下の
風箱２、３のノズル１から噴出される冷却風５が吹き付
けられる。具体的には、ガラス板４の外周縁形状に概略
一致したリングによりガラス板４の外周縁を支持するこ
とが一例としてあげられる。ノズル１、１間に浮いた状
態に保持する際にガラス板４を風箱２、３間で安定に保
持するために、通常はノズル１から噴出される冷却風５
の吹出し量を適切に調整することが一般的に行われてい
る。In this case, while the glass plate 4 is held in a state of being floated between the nozzles 1 and 1 of the wind boxes 2 and 3, the cooling air 5 blown from the nozzles 1 of the upper and lower wind boxes 2 and 3 is blown. Can be Specifically, for example, the outer peripheral edge of the glass plate 4 is supported by a ring substantially matching the outer peripheral shape of the glass plate 4. In order to stably hold the glass plate 4 between the wind boxes 2 and 3 when the glass plate 4 is held between the nozzles 1 and 1, the cooling air 5 normally ejected from the nozzle 1 is used.
It is common practice to appropriately adjust the amount of air blown.
【０００５】[0005]
【発明が解決しようとする課題】上記したように、ガラ
ス板４の両表面に噴流状の冷却風５が吹き付けられる
と、ガラス板４には表面に鉛直な方向の力が加わること
になる。しかし、ノズル１の冷却風５を噴出する開口は
小さいため、噴出される冷却風５の噴出圧が不安定にな
る。こうした設備的な問題から、ガラス板４の両表面に
加わる力は時間的に変動して、アンバランスが生じるこ
とがある。この結果、風箱２、３間で強化されているガ
ラス板４がバタツキを起こして、ガラス板４がノズル１
に接触しガラス板４に傷が付いたり、ガラス板４が割れ
るなどの問題が発生する。As described above, when the cooling air 5 in the form of a jet is blown onto both surfaces of the glass plate 4, a vertical force is applied to the surface of the glass plate 4. However, since the opening of the nozzle 1 for jetting the cooling air 5 is small, the jet pressure of the jetted cooling air 5 becomes unstable. Due to such a facility problem, the force applied to both surfaces of the glass plate 4 may fluctuate with time and cause imbalance. As a result, the glass plate 4 strengthened between the wind boxes 2 and 3 flaps, and the glass plate 4
And the glass plate 4 is damaged, and the glass plate 4 is broken.
【０００６】とくに、最近の自動車の軽量化に伴って要
求が増してきている、従来よりさらに薄くて強い強化ガ
ラス板、たとえば板厚２．５ｍｍから３．１ｍｍのガラ
ス板４に対しては、ガラス重量が軽いためにガラス板４
が風箱２、３間で変動し易い。さらに、薄いガラス板４
で関連する安全上の法規を満足する強化度を得るために
は、ガラス板４とノズル１との間の距離を従来の強化設
備よりも近い距離として冷却能力を高める必要がある。
これらの理由によって、薄いガラス板４においては、と
くにガラス板４の両表面にかかる力のアンバランスが生
じ易くなってガラス板の傷発生や割れなどの問題がより
発生し易い傾向になる。In particular, for a tempered glass sheet which is thinner and stronger than the conventional one, for example, a glass sheet 4 having a thickness of 2.5 mm to 3.1 mm, which has been increasingly required with the recent reduction in the weight of automobiles, Glass plate 4 because glass weight is light
Is easily changed between the wind boxes 2 and 3. Furthermore, thin glass plate 4
In order to obtain a degree of strengthening that satisfies the related safety regulations, it is necessary to increase the cooling capacity by setting the distance between the glass plate 4 and the nozzle 1 to be shorter than that of the conventional strengthening equipment.
For these reasons, in the thin glass plate 4, the imbalance of the forces applied to both surfaces of the glass plate 4 is particularly likely to occur, and the problem such as scratching or cracking of the glass plate tends to occur more easily.
【０００７】本発明は、ガラス板、とくに板厚の薄いガ
ラス板の変形や傷の発生を防ぐことができ、かつ強化中
の冷却能をコントロールできるガラス板の強化方法およ
び強化装置を提供する。The present invention provides a method and an apparatus for strengthening a glass sheet, which can prevent the deformation and scratching of a glass sheet, especially a thin glass sheet, and can control the cooling capacity during the strengthening.
【０００８】[0008]
【課題を解決するための手段】本発明は、加熱されたガ
ラス板の両表面に対向するよう配したノズルから冷却風
をガラス板表面に吹き付けることによりガラス板を強化
する方法であって、ノズルからガラス板表面に吹き付け
られた後の冷却風がガラス板の平面に沿う方向に排出さ
れる排出部に排出量調節手段を備えて吹き付けられた後
の冷却風の排出量を調節することにより、強化中のガラ
ス板にかかる圧力と冷却能とを調節することを特徴とす
るガラス板の強化方法、に係るものである。SUMMARY OF THE INVENTION The present invention relates to a method of strengthening a glass sheet by blowing cooling air onto the surface of the glass sheet from nozzles arranged to face both surfaces of a heated glass sheet. By adjusting the discharge amount of the cooling air after being blown by providing a discharge amount adjusting means to a discharge portion where the cooling air after being blown from the surface of the glass plate is discharged in a direction along the plane of the glass plate, The present invention relates to a method for strengthening a glass sheet, which comprises adjusting a pressure applied to the glass sheet during tempering and a cooling capacity.
【０００９】本発明は、加熱されたガラス板の両表面に
対向するように配置され、ガラス板の両表面に冷却風を
吹き付けるためのノズルが複数備えられた風箱を有する
ガラス板の強化装置であって、風箱とノズルとで形成さ
れる強化装置の外形部分にガラス板表面に吹き付けられ
た後の冷却風を排出する排出部を形成し、前記ガラス板
の両表面に対向するうちの少なくとも一方の外形部分の
排出部に、該排出部から排出される前記吹き付けられた
後の冷却風の排出量を規制する排出量調節手段を備えた
ことを特徴とするガラス板の強化装置、に係るものであ
る。The present invention is directed to an apparatus for strengthening a glass sheet having a wind box provided so as to face both surfaces of a heated glass sheet and having a plurality of nozzles for blowing cooling air to both surfaces of the glass sheet. Forming a discharge portion for discharging the cooling air blown to the surface of the glass plate on the outer portion of the strengthening device formed by the wind box and the nozzle, and forming a discharge portion facing both surfaces of the glass plate. A tempering device for a glass sheet, comprising: at least one of the outer portions having a discharge portion, the discharge portion having discharge amount adjusting means for restricting a discharge amount of the blown cooling air discharged from the discharge portion. It is related.
【００１０】前記風箱は、風箱本体とノズルが列状に設
けられて前記風箱本体に連設された櫛歯状のノズル装着
部とを有し、前記櫛歯状のノズル装着部間に前記排出部
が設けられていてもよい。The wind box has a wind box main body and a comb-shaped nozzle mounting portion provided with nozzles arranged in a row and connected to the wind box main body. May be provided with the discharge section.
【００１１】本発明では、排出量調節手段により吹き付
けられた後の冷却風の排出量を調節することによって、
強化中のガラス板を安定させることができ、したがって
板厚が薄いガラス板に対してもガラス板のバタツキを押
えて、強化中にガラス板と風箱が接触することに起因す
るガラス板の傷、割れ、変形などを防止することができ
る。In the present invention, by adjusting the discharge amount of the cooling air blown by the discharge amount adjusting means,
The glass sheet being tempered can be stabilized, and therefore, the glass sheet can be pressed against the thin glass sheet, and the glass sheet can be damaged due to the contact between the glass sheet and the wind box during tempering. , Cracks, deformation and the like can be prevented.
【００１２】また、本発明では、ガラス板を安定させる
ことができるために、風箱の相互間隔を小さくして強化
中のガラス板の冷却能を高めることができ、しかもガラ
ス板を安定させつつ冷却能を自由にコントロールするこ
とができるので、薄いガラス板でも割れ発生の問題を抑
制しつつ適切な強化処理が実施できる。Further, according to the present invention, since the glass sheets can be stabilized, the interval between the wind boxes can be reduced to increase the cooling ability of the glass sheet being strengthened. Since the cooling capacity can be freely controlled, appropriate strengthening treatment can be performed while suppressing the problem of crack generation even with a thin glass plate.
【００１３】[0013]
【発明の実施の形態】以下、添付図面に従って、本発明
に係るガラス板の強化方法および強化装置の好ましい実
施の形態を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a method and an apparatus for strengthening a glass sheet according to the present invention will be described below with reference to the accompanying drawings.
【００１４】図１および図２は、本発明におけるガラス
板の強化装置の一例を示す正面図および部分斜視図であ
る。FIGS. 1 and 2 are a front view and a partial perspective view, respectively, showing an example of a glass sheet strengthening apparatus according to the present invention.
【００１５】図１および図２に示すように、加熱された
ガラス板４の両表面に対向するように配置される風箱
２、３は、冷却風５を供給するブロワに連結された風箱
本体（符号３１のみ図示）と、ガラス板４の両表面に冷
却風５を吹き付けるための複数のノズル１を列状に設け
た風箱本体３１に連設された櫛歯状の複数のノズル装着
部（符号３２のみ図示）とを有する。こうして各ノズル
１からガラス板４表面に吹き付けられた後の冷却風５は
ガラス板４に衝突した後に各ノズル１の脇から櫛歯状の
複数のノズル装着部３２の間に抜け、各ノズル装着部３
２間に形成された排出溝６からなる排出部を経て、風箱
外形よりも外側へ排出される。As shown in FIGS. 1 and 2, wind boxes 2, 3 arranged to face both surfaces of a heated glass plate 4 are wind boxes connected to a blower for supplying cooling air 5. A plurality of comb-tooth-shaped nozzles connected to a wind box main body 31 provided with a main body (only reference numeral 31 is shown) and a plurality of nozzles 1 for blowing cooling air 5 on both surfaces of the glass plate 4 in a row. (Only 32 is shown). After the cooling air 5 blown from the nozzles 1 to the surface of the glass plate 4 collides with the glass plate 4, the cooling air 5 escapes from the side of each nozzle 1 between the plurality of comb-shaped nozzle mounting portions 32, and each nozzle mounting Part 3
The air is discharged to the outside of the outer shape of the wind box through a discharge portion including a discharge groove 6 formed between the two.
【００１６】前記風箱２、３における排出溝６の端部位
置には、排出溝６から排出される吹き付けられた後の冷
却風５の排出量を規制するための排出量調節手段７が備
えられている。図１および図２の排出量調節手段７は、
排出溝６の端部を開閉するようにピン８にて風箱２、３
に開閉可能に取付けられた板部材９である。At the end positions of the discharge grooves 6 in the wind boxes 2 and 3, there are provided discharge amount adjusting means 7 for regulating the discharge amount of the blown cooling air 5 discharged from the discharge grooves 6. Have been. The emission control means 7 shown in FIGS.
Pins 8 open and close wind boxes 2 and 3 so as to open and close the end of discharge groove 6.
The plate member 9 is attached to the openable and closable plate.
【００１７】また、図３は前記排出量調節手段７の他の
例を示したものであり、図３の排出量調節手段７は、排
出溝６の端部を開閉するように風箱２、３に固定部材１
０により取付けられたアコーデオン型の伸縮部材１１の
場合を示している。なお、伸縮部材１１には図３のアコ
ーデオン型以外に、複数のプレートをスライド可能に連
結して開閉を行えるようにしたものも採用できる。FIG. 3 shows another example of the discharge amount adjusting means 7. The discharge amount adjusting means 7 shown in FIG. Fixing member 1 for 3
0 shows an accordion-type elastic member 11 attached thereto. In addition to the accordion type shown in FIG. 3, a member in which a plurality of plates are slidably connected to open and close can be used as the elastic member 11.
【００１８】さらに、図１および図２の板部材９の開閉
角度の調節、および図３の伸縮部材１１の伸縮の調節
は、それぞれシリンダ駆動方式、モータ駆動方式、手動
方式など、種々の方式により実施することができる。Further, the adjustment of the opening / closing angle of the plate member 9 in FIGS. 1 and 2 and the adjustment of the expansion / contraction of the expansion / contraction member 11 in FIG. Can be implemented.
【００１９】以下に本発明の作用を説明する。The operation of the present invention will be described below.
【００２０】加熱されたガラス板４は、図１に示すよう
に風箱２、３のノズル１，１間に、紙面と直角の方向か
ら搬入されるようになっており、風箱２、３間に搬入さ
れたガラス板４は、風箱２、３のノズル１から噴出され
る冷却風５によって両表面から冷却されて急冷されるこ
とにより、ガラス板４の表面と内面に温度差が形成さ
れ、これによってガラス板４は強化される。As shown in FIG. 1, the heated glass plate 4 is carried between the nozzles 1 and 1 of the wind boxes 2 and 3 from a direction perpendicular to the paper surface. The glass plate 4 carried in between is cooled from both surfaces by the cooling air 5 blown out from the nozzles 1 of the wind boxes 2 and 3 and is rapidly cooled, so that a temperature difference is formed between the surface and the inner surface of the glass plate 4. Thereby, the glass plate 4 is strengthened.
【００２１】このとき、前記ガラス板４は風箱２、３の
中間に浮いた状態に保持されて、上下の風箱２、３のノ
ズル１から噴出される冷却風５が吹き付けられる。その
ために、ノズル１からの冷却風５の吹出量の僅かな変動
で、ガラス板４、とくに薄いガラス板４は風箱２、３内
でバタツキを起こして、安定しないために、ガラス板４
がノズル１に接触して傷を生じる問題がある。また、こ
の問題に対処するために、風箱２、３の相互間隔を大き
めに設定するようにしているが、このようにするとガラ
ス板４を十分に急冷することができない、すなわち十分
な冷却能が得られない問題がある。At this time, the glass plate 4 is held in a state of being floated in the middle of the wind boxes 2 and 3, and the cooling air 5 blown from the nozzles 1 of the upper and lower wind boxes 2 and 3 is blown. Therefore, the glass plate 4, especially the thin glass plate 4, fluctuates in the wind boxes 2 and 3 due to a slight change in the amount of the cooling air 5 blown out from the nozzle 1, and becomes unstable.
However, there is a problem that the nozzles come into contact with the nozzle 1 and cause scratches. Further, in order to cope with this problem, the mutual spacing between the wind boxes 2 and 3 is set to be relatively large. However, in this case, the glass plate 4 cannot be cooled rapidly enough, that is, sufficient cooling capacity is required. There is a problem that can not be obtained.
【００２２】これに対して図１および図２の装置におい
ては、複数のノズル１を列状に備えているノズル装着部
３２間に、各ノズル１からガラス板４表面に吹き付けら
れた後の冷却風５がガラス板４の平面に沿う方向に排出
され易くなるようにした排出溝６による排出部を形成し
ており、かつ前記風箱２、３における排出溝６の端部位
置に、排出溝６から排出される吹き付けられた後の冷却
風５の排出量を規制できるようにした開閉可能な板部材
９による排出量調節手段７を設けている。On the other hand, in the apparatus shown in FIGS. 1 and 2, the cooling after the nozzles 1 are sprayed onto the surface of the glass plate 4 between the nozzle mounting portions 32 each having a plurality of nozzles 1 in a row. A discharge portion is formed by a discharge groove 6 for facilitating discharge of the wind 5 in a direction along the plane of the glass plate 4, and a discharge groove is provided at an end position of the discharge groove 6 in the wind boxes 2 and 3. Discharge amount adjusting means 7 is provided by an openable and closable plate member 9 capable of controlling the discharge amount of the blown cooling air 5 discharged from 6.
【００２３】また、図３では、前記風箱２、３における
排出溝６の端部位置に、前記排出溝６から排出される吹
き付けられた後の冷却風５の排出量を規制できるように
したアコーデオン型の伸縮部材１１による排出量調節手
段７を設けている。Further, in FIG. 3, the discharge amount of the cooling air 5 blown from the discharge grooves 6 at the end positions of the discharge grooves 6 in the wind boxes 2 and 3 can be regulated. The discharge amount adjusting means 7 by an accordion-type elastic member 11 is provided.
【００２４】したがって、図１および図２の板部材９の
開度を調節するか、あるいは図３の伸縮部材１１の伸縮
を調節して、前記排出溝６の端部出口の開口量を調節す
ると、吹き付けられた後の冷却風５がガラス板４に沿っ
て排出される量を調節できる。よって、吹き付けられた
後の冷却風５により残留する気体の圧力をガラス板４の
両表面に与えることができ、ガラス板４の上下のノズル
１、１間でのバタツキを防止できる。したがって、ガラ
ス板４の位置を風箱２、３間の任意の位置、例えば中央
位置に安定して保持させることができるようになる。さ
らにこの場合、排出溝６の端部出口の開口量の調節によ
り、前記残留する気体の圧力を自由に調節できる。この
結果、ガラス板４の重量やガラス板４に吹き付けられる
冷却風５の強さに応じて、ガラス板４を安定して保持し
得る残留気体の圧力を得ることができる。Therefore, by adjusting the opening degree of the plate member 9 in FIGS. 1 and 2 or by adjusting the expansion and contraction of the expansion and contraction member 11 in FIG. 3, the opening amount of the end exit of the discharge groove 6 is adjusted. Then, the amount of the cooling air 5 discharged after being blown along the glass plate 4 can be adjusted. Therefore, the pressure of the remaining gas can be given to both surfaces of the glass plate 4 by the cooling air 5 after being blown, and the flapping between the nozzles 1 and 1 above and below the glass plate 4 can be prevented. Therefore, the position of the glass plate 4 can be stably held at an arbitrary position between the wind boxes 2 and 3, for example, at the center position. Further, in this case, the pressure of the remaining gas can be freely adjusted by adjusting the opening amount of the end outlet of the discharge groove 6. As a result, the pressure of the residual gas that can stably hold the glass plate 4 can be obtained according to the weight of the glass plate 4 and the strength of the cooling air 5 blown to the glass plate 4.
【００２５】さらに、ガラス板４が安定することによ
り、風箱２、３を近付けて配置することができるため、
十分な冷却を行わせて高い冷却能を得ることができるよ
うになる。また、上下の風箱２、３のノズル１からの冷
却風５の吹出量を同一とした状態にて、ガラス板４を風
箱２、３間の任意の位置に安定して保持させることがで
きるので、ガラス板４の両表面が同一の強化度になるよ
うに調節することができる。Further, since the glass plates 4 are stabilized, the wind boxes 2 and 3 can be arranged close to each other.
A sufficient cooling performance can be obtained by performing sufficient cooling. Further, the glass plate 4 can be stably held at an arbitrary position between the wind boxes 2 and 3 in a state where the amount of the cooling air 5 blown out from the nozzles 1 of the upper and lower wind boxes 2 and 3 is made equal. Since it is possible, both surfaces of the glass plate 4 can be adjusted to have the same degree of strengthening.
【００２６】なお、前記形態例においては、上下の風箱
２、３の両方に排出量調節手段７を設ける場合について
例示したが、下側の風箱３のみに排出量調節手段７を設
けるようにしてもよく、このようにした場合にも前記し
たように、例えばガラス板４の両表面に均一の圧力を与
えて位置を安定させ、かつ風箱２、３から同一量の冷却
風５を吹出させてガラス板４の両表面に均一な強化処理
を行うことができる。In the above-described embodiment, the case where the discharge amount adjusting means 7 is provided in both the upper and lower wind boxes 2 and 3 is exemplified. However, the discharge amount adjusting means 7 is provided only in the lower wind box 3. In this case, as described above, for example, a uniform pressure is applied to both surfaces of the glass plate 4 to stabilize the position, and the same amount of cooling air 5 is blown from the wind boxes 2 and 3. By blowing it out, both surfaces of the glass plate 4 can be uniformly strengthened.
【００２７】また、前記形態例では、上下の風箱２、３
を櫛歯状としているが、完全な箱状にすることもでき
る。この場合、箱状の風箱とガラス板４との対向面に、
複数のノズル１が配置され、排出溝６の代わりに各ノズ
ル１間の隙間が吹き付けられた冷却風５の排出部とな
る。そのため、ガラス板４に対し四方から排気される。
そこで残留気体による圧力を得るためには、少なくとも
ノズル１の根元を含む風箱または最外周にあるノズル群
に排出量調節手段７を設けることもできる。In the above embodiment, the upper and lower wind boxes 2, 3
Is comb-shaped, but it can also be completely box-shaped. In this case, on the opposing surface of the box-shaped wind box and the glass plate 4,
A plurality of nozzles 1 are arranged, and instead of the discharge grooves 6, a gap between the nozzles 1 serves as a discharge portion of the cooling air 5 blown. Therefore, the glass plate 4 is exhausted from all directions.
Therefore, in order to obtain the pressure due to the residual gas, the discharge amount adjusting means 7 can be provided in a wind box including at least the root of the nozzle 1 or a nozzle group at the outermost periphery.
【００２８】さらに、本発明は、上記した実施の形態例
にのみ限定されるものではなく、図示以外の形状の風箱
にも適用できること、排出量調節手段は図示例以外にも
種々の形状、構造のものを採用できること、その他本発
明の要旨を逸脱しない範囲内において種々変更を加える
こと、などは勿論である。Further, the present invention is not limited to the above-described embodiment, but can be applied to wind boxes having shapes other than those shown in the drawings. Of course, it is possible to adopt a structure, and to add various changes without departing from the gist of the present invention.
【００２９】[0029]
【発明の効果】本発明によるガラス板の強化方法および
強化装置によれば、排出量調節手段により吹き付けられ
た後の冷却風の排出量を調節することによって、強化中
のガラス板を安定させることができ、したがって板厚が
薄いガラス板に対してもガラス板のバタツキを押えて、
強化中にガラス板と風箱が接触することに起因するガラ
ス板の傷、割れ、変形などを防止できるという優れた効
果を奏し得る。According to the method and apparatus for strengthening a glass sheet according to the present invention, the glass sheet during tempering is stabilized by adjusting the discharge amount of the cooling air blown by the discharge amount adjusting means. Can be made, so even for a thin glass plate,
An excellent effect of preventing scratches, cracks, deformation, and the like of the glass plate due to the contact between the glass plate and the wind box during tempering can be obtained.
【００３０】また、本発明によるガラス板の強化方法お
よび強化装置によれば、ガラス板を安定させることがで
きるために、風箱の相互間隔を小さくして強化中のガラ
ス板の冷却能を高めることができ、しかもガラス板を安
定させつつ冷却能を自由にコントロールすることができ
るので、薄いガラス板でも割れ発生の問題を抑制しつつ
適切な強化処理が実施できるという優れた効果を奏し得
る。According to the method and apparatus for strengthening a glass sheet according to the present invention, since the glass sheets can be stabilized, the interval between the wind boxes is reduced to enhance the cooling ability of the glass sheet during strengthening. In addition, since the cooling ability can be freely controlled while stabilizing the glass plate, an excellent effect that an appropriate strengthening treatment can be performed while suppressing the problem of crack generation even with a thin glass plate can be achieved.
【図１】本発明に係るガラス板の強化装置の一例を示す
正面図である。FIG. 1 is a front view showing an example of a glass sheet strengthening apparatus according to the present invention.
【図２】図１における下部の風箱の斜視図である。FIG. 2 is a perspective view of a lower wind box in FIG. 1;
【図３】本発明に係るガラス板の強化装置の他の例を示
す下部の風箱の斜視図である。FIG. 3 is a perspective view of a lower wind box showing another example of the glass sheet strengthening device according to the present invention.
【図４】従来のガラス板の強化装置の一例を示す正面図
である。FIG. 4 is a front view showing an example of a conventional glass sheet strengthening apparatus.
１：ノズル ２、３：風箱 ４：ガラス板 ５：冷却風 ６：排出溝（排出部） ７：排出量調節手段 ８：ピン ９：板部材 １１：伸縮部材 ３１：風箱本体 ３２：ノズル装着部 1: Nozzle 2, 3: Wind box 4: Glass plate 5: Cooling air 6: Discharge groove (discharge unit) 7: Discharge amount adjusting means 8: Pin 9: Plate member 11: Expandable member 31: Wind box body 32: Nozzle Mounting part
Claims (3)
う配したノズルから冷却風をガラス板表面に吹き付ける
ことによりガラス板を強化する方法であって、ノズルか
らガラス板表面に吹き付けられた後の冷却風がガラス板
の平面に沿う方向に排出される排出部に排出量調節手段
を備えて吹き付けられた後の冷却風の排出量を調節する
ことにより、強化中のガラス板にかかる圧力と冷却能と
を調節することを特徴とするガラス板の強化方法。1. A method of strengthening a glass sheet by blowing cooling air to the surface of the glass sheet from a nozzle disposed to face both surfaces of the heated glass sheet, wherein the cooling air is blown from the nozzle to the surface of the glass sheet. The discharge portion where the subsequent cooling air is discharged in the direction along the plane of the glass sheet is provided with a discharge amount adjusting means to adjust the discharge amount of the cooling air after being blown, so that the pressure applied to the glass sheet being strengthened A method for strengthening a glass sheet, comprising adjusting a cooling capacity.
うに配置され、ガラス板の両表面に冷却風を吹き付ける
ためのノズルが複数備えられた風箱を有するガラス板の
強化装置であって、風箱とノズルとで形成される強化装
置の外形部分にガラス板表面に吹き付けられた後の冷却
風を排出する排出部を形成し、前記ガラス板の両表面に
対向するうちの少なくとも一方の外形部分の排出部に、
該排出部から排出される前記吹き付けられた後の冷却風
の排出量を規制する排出量調節手段を備えたことを特徴
とするガラス板の強化装置。2. A strengthening apparatus for a glass sheet, comprising: a wind box provided so as to face both surfaces of a heated glass sheet and having a plurality of nozzles for blowing cooling air to both surfaces of the glass sheet. Forming a discharge portion for discharging the cooling air blown to the surface of the glass plate on an outer portion of the strengthening device formed by the wind box and the nozzle, and at least one of the surfaces facing the both surfaces of the glass plate. In the discharge part of the outer part of
An apparatus for strengthening a glass sheet, comprising: a discharge amount adjusting means for restricting a discharge amount of the blown cooling air discharged from the discharge portion.
けられて前記風箱本体に連設された櫛歯状のノズル装着
部とを有し、前記櫛歯状のノズル装着部間に前記排出部
が設けられていることを特徴とする請求項２記載のガラ
ス板の強化装置。3. The wind box has a wind box body and a comb-shaped nozzle mounting portion provided with nozzles arranged in a row and connected to the wind box body. The glass sheet strengthening device according to claim 2, wherein the discharge portion is provided between the portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10236033A JP2000072463A (en) | 1998-08-21 | 1998-08-21 | Method for tempering glass sheet and tempering apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10236033A JP2000072463A (en) | 1998-08-21 | 1998-08-21 | Method for tempering glass sheet and tempering apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000072463A true JP2000072463A (en) | 2000-03-07 |
Family
ID=16994775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10236033A Pending JP2000072463A (en) | 1998-08-21 | 1998-08-21 | Method for tempering glass sheet and tempering apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000072463A (en) |
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| JP2006521274A (en) * | 2003-03-28 | 2006-09-21 | ピルキントン パブリック リミテッド カンパニー | Strengthening of bent glass plate |
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|---|---|---|---|---|
| JP2002193631A (en) * | 2000-12-26 | 2002-07-10 | Asahi Glass Co Ltd | Air cooling and tempering device for glass sheet |
| JP2006521274A (en) * | 2003-03-28 | 2006-09-21 | ピルキントン パブリック リミテッド カンパニー | Strengthening of bent glass plate |
| US9975801B2 (en) | 2014-07-31 | 2018-05-22 | Corning Incorporated | High strength glass having improved mechanical characteristics |
| US10005691B2 (en) | 2014-07-31 | 2018-06-26 | Corning Incorporated | Damage resistant glass article |
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| CN104944753A (en) * | 2015-05-25 | 2015-09-30 | 上海福耀客车玻璃有限公司 | Glass tempering air-quantity-adjustable energy saving device |
| US11643355B2 (en) | 2016-01-12 | 2023-05-09 | Corning Incorporated | Thin thermally and chemically strengthened glass-based articles |
| US11795102B2 (en) | 2016-01-26 | 2023-10-24 | Corning Incorporated | Non-contact coated glass and related coating system and method |
| CN106365424B (en) * | 2016-10-31 | 2018-08-03 | 蚌埠玻璃工业设计研究院 | A kind of flat glass toughening air grid tuyere slowing down wind ring |
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| US11708296B2 (en) | 2017-11-30 | 2023-07-25 | Corning Incorporated | Non-iox glasses with high coefficient of thermal expansion and preferential fracture behavior for thermal tempering |
| US11697617B2 (en) | 2019-08-06 | 2023-07-11 | Corning Incorporated | Glass laminate with buried stress spikes to arrest cracks and methods of making the same |
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