JPS6343324B2 - - Google Patents
Info
- Publication number
- JPS6343324B2 JPS6343324B2 JP18823982A JP18823982A JPS6343324B2 JP S6343324 B2 JPS6343324 B2 JP S6343324B2 JP 18823982 A JP18823982 A JP 18823982A JP 18823982 A JP18823982 A JP 18823982A JP S6343324 B2 JPS6343324 B2 JP S6343324B2
- Authority
- JP
- Japan
- Prior art keywords
- plate glass
- glass
- contact member
- solid contact
- cooling
- 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
Links
- 239000005357 flat glass Substances 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims description 23
- 238000005728 strengthening Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 18
- 239000011521 glass Substances 0.000 description 10
- 239000004744 fabric Substances 0.000 description 6
- 229920002545 silicone oil Polymers 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- 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
- C03B27/004—Tempering or quenching glass products by bringing the hot glass product in contact with a solid cooling surface, e.g. sand grains
-
- 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
- C03B27/052—Tempering or quenching glass products using gas for flat or bent glass sheets being in a vertical position
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】
本発明は、板ガラスの強化方法に関するもので
あり、更に詳細には、板ガラスに例えば格子状に
連続した平面圧縮応力を発生させることにより、
板ガラスを破砕した際に、シヤープエツジ（破砕
片が細長いもの）の発生が極めて少ない強化方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for strengthening plate glass, and more specifically, by generating continuous planar compressive stress in a lattice shape, for example, in plate glass,
The present invention relates to a strengthening method that produces extremely few sharp edges (elongated fragments) when glass sheets are crushed.
このような板ガラスの強化方法として、平行に
配列した複数本の補助加熱素子を用いて加熱し、
風冷強化するもの（特開昭55−15910号）、板ガラ
スに高い温度に加熱した区域と低い温度に加熱し
た区域を形成して風冷強化するもの（特許第
133133号）、断熱耐火性能を有する微粉体を板ガ
ラスにブロツク状に塗布して風冷強化するもの
（特公昭54−5813号）等が公知であるが、これら
の技術は温度の調節が複雑であつたり、断熱耐火
塗料の塗布、除去等の工程が必要であつたり、ま
た板ガラスの強化度が充分に高く、しかもシヤー
プエツジの発生が少ない強化ガラスが得られ難い
ものであつた。 A method for strengthening such plate glass is to heat it using multiple auxiliary heating elements arranged in parallel.
(Patent No. 55-15910), which strengthens by wind cooling, and by forming a region heated to a high temperature and a region heated to a low temperature on a plate glass (Patent No.
(No. 133133), and a method of applying air-cooled fine powder with heat-insulating and fire-resistant properties to sheet glass in the form of a block (Special Publication No. 5813-1981), etc., but these techniques require complicated temperature control. In addition, it has been difficult to obtain a tempered glass sheet with a sufficiently high degree of reinforcement and less occurrence of sharp edges.
本発明は、従来のこのような欠点を解消するも
のであり、シヤープエツジの発生が極めて少な
く、充分な強化度を有する強化ガラスを製造し得
るものである。 The present invention solves these conventional drawbacks, and makes it possible to produce tempered glass with extremely low occurrence of sharp edges and a sufficient degree of reinforcement.
即ち、本発明は、歪点以上に加熱した板ガラス
に、板ガラスに接触する領域と非接触の領域を有
し、接触する領域が連続に繋つた固体接触部材に
て接触させて予備冷却した後、冷却媒体を吹き付
けて強化することを特徴とする板ガラスの強化方
法を要旨とするものである。 That is, in the present invention, after pre-cooling a plate glass heated above the strain point by contacting the plate glass with a solid contact member that has a contact area and a non-contact area, and the contact areas are continuously connected, The gist of this invention is a method for strengthening plate glass, which is characterized by strengthening by spraying a cooling medium.
ここで、歪点以上に加熱した板ガラスとは例え
ば600〜700℃の温度に加熱したものである。 Here, the plate glass heated above the strain point is, for example, one heated to a temperature of 600 to 700°C.
固体接触部材とは、固体接触部材を板ガラスに
接触させた際に固体接触部材が板ガラスに接触す
る領域と非接触の領域を有し、その接触する領域
が例えば格子状に連続に繋がつたものであり、加
熱した板ガラスに固体接触部材を接触させた際に
例えば、格子状のように連続した平面圧縮応力を
形成するものである。格子状の他に菱形状、リン
グ状等に連続に繋つたものでもよい。固体接触部
材は例えば鉄、ステンレス鋼等で形成されたもの
であり、固体接触部材の表面にガラスクロスを貼
着し、そのガラスクロスに例えばシリコンオイ
ル、マシンオイル等を塗布してもよい。また固体
接触部材の例えば常温から100℃とし、連続で使
用する場合には水冷してもよい。 A solid contact member is one that has an area where the solid contact member contacts the plate glass and a non-contact area when the solid contact member is brought into contact with the plate glass, and the contact areas are continuously connected, for example, in a grid pattern. When a solid contact member is brought into contact with a heated plate glass, a continuous planar compressive stress is formed, for example, in the form of a lattice. In addition to the lattice shape, it may also be continuously connected in a diamond shape, ring shape, etc. The solid contact member is made of iron, stainless steel, etc., and a glass cloth may be attached to the surface of the solid contact member, and silicone oil, machine oil, etc. may be applied to the glass cloth. Further, the temperature of the solid contact member may be kept at room temperature to 100° C., and may be water-cooled when used continuously.
また、冷却媒体は空気、水ミスト等を用い通常
の冷却方法で板ガラスを強化する。 Further, the sheet glass is strengthened by a normal cooling method using air, water mist, or the like as a cooling medium.
このように、固体接触部材で予備冷却し、更に
冷却媒体で冷却することにより、板ガラスに例え
ば格子状に強化度の高い部分が生じ、破砕した際
に、その部分の破砕片が密になりシヤープエツジ
の発生を抑制できる。 In this way, by pre-cooling with a solid contact member and further cooling with a cooling medium, highly reinforced areas are created in the plate glass, for example in the form of a lattice, and when it is shattered, the fragments in that area become denser and become sharp edges. The occurrence of can be suppressed.
次に本発明の板ガラスの強化方法を図面に基づ
いて説明する。 Next, the method for strengthening plate glass of the present invention will be explained based on the drawings.
第１図および第２図は本発明を実施する場合の
一態様を示すものである。板ガラス吊具１により
端部を吊り下げられ、加熱炉で歪点より高い温
度、例えば600〜700℃に加熱された板ガラス２は
予備冷却装置３内に移送され、予備冷却される。
予備冷却装置３は、一対の固体接触部材４で構成
され、その固体接触部材４はシリンダー５によ
り、板ガラス２を両方から接触あるいは隔離でき
るようになつてる。固体接触部材４は鉄等により
構成され、板ガラスに接触する領域６と非接触の
領域７よりなり、接触する領域６は格子状に連続
に繋がつている。また、固体接触部材４の表面に
はガラスクロス８が貼着され、固体接触部材４の
内部に設けられたスプレーノズル９により反対側
の固体接触部材４の表面にシリコンオイル等を吹
き付けてガラスクロス８にしみ込むようにしてあ
る。 FIGS. 1 and 2 show one embodiment of the present invention. A plate glass 2 whose end is suspended by a plate glass hanger 1 and heated in a heating furnace to a temperature higher than the strain point, for example 600 to 700°C, is transferred to a pre-cooling device 3 and pre-cooled.
The precooling device 3 is composed of a pair of solid contact members 4, and the solid contact members 4 are capable of contacting or isolating the plate glass 2 from both by means of a cylinder 5. The solid contact member 4 is made of iron or the like, and consists of a region 6 that contacts the plate glass and a region 7 that does not contact the plate glass, and the contact regions 6 are continuously connected in a grid pattern. Further, a glass cloth 8 is pasted on the surface of the solid contact member 4, and a spray nozzle 9 provided inside the solid contact member 4 sprays silicone oil or the like onto the surface of the solid contact member 4 on the opposite side. It is designed to penetrate into 8.
このように予備冷却装置３を構成することによ
り、スプレーノズル９によりシリコンオイル等を
固体接触部材４の表面に吹き付けてガラスクロス
８にしみ込ませた後、板ガラスを予備冷却装置３
内に移送させ、固体接触部材４をシリンダー５に
より板ガラス２に例えば１〜数秒間接触させて、
予備冷却させ、板ガラス２に格子状に連続した平
面圧縮応力を発生させる。その後、シリンダー５
により固体接触部材４を隔離させ、板ガラスを本
冷却装置に移送し、強化処理を行なう。本冷却装
置は空気等により通常使用されている冷却装置で
ある。 By configuring the pre-cooling device 3 in this way, silicone oil or the like is sprayed onto the surface of the solid contact member 4 using the spray nozzle 9 and soaked into the glass cloth 8, and then the sheet glass is transferred to the pre-cooling device 3.
The solid contact member 4 is brought into contact with the plate glass 2 for, for example, 1 to several seconds by the cylinder 5,
The plate glass 2 is pre-cooled to generate a continuous planar compressive stress in a lattice pattern. Then cylinder 5
The solid contact member 4 is isolated by this method, and the plate glass is transferred to the main cooling device where it is strengthened. This cooling device is a cooling device that is normally used with air or the like.
実施例 １
680℃の温度に加熱した1200×700mm、厚さ3.0
mm、3.3mm、および3.55mmの板ガラスを第１図お
よび第２図に示された如き装置により、ガラスク
ロスにシリコンオイルをしみ込ませた後、板ガラ
スに固体接触部材を1.5秒間接触させ、その後風
冷強化処理を行なつた。風冷強化処理は、板厚
3.0mmの場合、空気圧2100〜2800mmAq、空気量
500〜600Nm3/min、板厚3.3mmの場合、空気圧
1700〜2300mmAq、空気量300〜400Nm3/min、板
厚3.55mmの場合、空気圧1400〜2000mmAq、空気
量250〜350Nm3/minとした。なお比較のため予
備冷却をしないで風冷強化処理のみの場合を行な
つた。風冷強化処理は前記の実施例の場合と同様
にした。第３図に強化処理をした板ガラスを中央
部より破砕した際の破砕数と平均シヤープエツジ
数との関係を示す。図中（●印）、（■印）、
（▲印）は実施例を示すものでは板厚3.0mm、
は板厚3.3mm、は板厚3.55mmの板ガラスであ
り、また、（○印）、（□印）、（△印）は
比較例を示すものでは板厚3.0mm、は板厚3.3
mmは板厚3.55mmの板ガラスである。Example 1 1200 x 700 mm heated to a temperature of 680°C, thickness 3.0
mm, 3.3 mm, and 3.55 mm plate glasses were soaked in silicone oil using the device shown in Figures 1 and 2. After the glass cloth was impregnated with silicone oil, a solid contact member was brought into contact with the plate glass for 1.5 seconds, and then air Cold strengthening treatment was performed. Wind cooling reinforcement treatment reduces plate thickness.
For 3.0mm, air pressure 2100~2800mmAq, air amount
500~ 600Nm3 /min, air pressure for plate thickness 3.3mm
In the case of 1700 to 2300 mmAq, air amount 300 to 400 Nm 3 /min, and plate thickness 3.55 mm, air pressure was 1400 to 2000 mmAq, and air amount 250 to 350 Nm 3 /min. For comparison, we conducted a case in which only air-cooling strengthening treatment was performed without pre-cooling. The air-cooling strengthening treatment was the same as in the previous example. FIG. 3 shows the relationship between the number of fractures and the average number of sharp edges when a tempered plate glass is crushed from the center. In the figure (● mark), (■ mark),
(▲ mark) indicates an example, the plate thickness is 3.0 mm,
are glass plates with a thickness of 3.3 mm and 3.55 mm, and (○), (□), and (△) are comparative examples with a thickness of 3.0 mm, and 3.3 mm in thickness.
mm is a glass plate with a thickness of 3.55 mm.
なお、破砕数は板ガラスの強化度を表わすもの
で、50mm角中の破砕片数である。またシヤープエ
ツジは強化処理した板ガラスを破砕した際、破砕
片の長さが60mm以上、長さと幅の比が４以上のも
のとし、５枚の板ガラスを破砕した際に発生した
平均のシヤープエツジ数を平均シヤープエツジ数
とした。第３図より、本発明の予備冷却すること
によりシヤープエツジ数を減少させることがわか
る。 Note that the number of fractures indicates the degree of reinforcement of the plate glass, and is the number of fragments in a 50 mm square. In addition, when shredding strengthened plate glass, the length of the shattered pieces should be 60 mm or more, and the ratio of length to width should be 4 or more, and the average number of sharp edges generated when 5 sheets of glass were crushed It was defined as the number of sharp edges. From FIG. 3, it can be seen that the precooling of the present invention reduces the number of sharp edges.
本発明によれば、板ガラスに接触する領域と非
接触の領域を有し接触する領域が連続に繋つた固
体接触部材により予備冷却することにより、シヤ
ープエツジ数を極めて減少させることができ、高
強度の強化ガラスを製造し得るという著効を有す
るものである。 According to the present invention, the number of sharp edges can be extremely reduced by pre-cooling with a solid contact member that has a contact area and a non-contact area, and the contact area is continuously connected to the sheet glass. It has the remarkable effect of being able to manufacture tempered glass.
第１図は本発明の実施に使用する予備冷却装置
の一例を示す概略側面図である。第２図は固体接
触部材の概略斜視図である。第３図は強化板ガラ
スの破砕数と平均シヤープエツジ数の関係を示す
グラフである。
１…板ガラス吊具、２…板ガラス、３…予備冷
却装置、４…固体接触部材、５…シリンダー、６
…接触する領域、７…非接触の領域、８…ガラス
クロス、９…スプレーノズル。
FIG. 1 is a schematic side view showing an example of a preliminary cooling device used in carrying out the present invention. FIG. 2 is a schematic perspective view of the solid contact member. FIG. 3 is a graph showing the relationship between the number of fractures and the average number of sharp edges of reinforced plate glass. DESCRIPTION OF SYMBOLS 1... Plate glass hanger, 2... Plate glass, 3... Pre-cooling device, 4... Solid contact member, 5... Cylinder, 6
...Contact area, 7...Non-contact area, 8...Glass cloth, 9...Spray nozzle.
Claims (1)
接触する領域と非接触の領域を有し、接触する領
域が連続に繋つた固体接触部材にて接触させて予
備冷却した後、冷却媒体を吹き付けて強化するこ
とを特徴とする板ガラスの強化方法。1. A plate glass heated above the strain point is pre-cooled by contacting it with a solid contact member that has a contact area and a non-contact area, and the contact areas are connected continuously, and then a cooling medium is sprayed on the plate glass. A method for strengthening plate glass, characterized by strengthening it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18823982A JPS5978938A (en) | 1982-10-28 | 1982-10-28 | Method for tempering plate glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18823982A JPS5978938A (en) | 1982-10-28 | 1982-10-28 | Method for tempering plate glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978938A JPS5978938A (en) | 1984-05-08 |
| JPS6343324B2 true JPS6343324B2 (en) | 1988-08-30 |
Family
ID=16220221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18823982A Granted JPS5978938A (en) | 1982-10-28 | 1982-10-28 | Method for tempering plate glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978938A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827342A (en) * | 2017-10-12 | 2018-03-23 | 洛阳兰迪玻璃机器股份有限公司 | Shaping glass sheets toughening method and system |
-
1982
- 1982-10-28 JP JP18823982A patent/JPS5978938A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5978938A (en) | 1984-05-08 |
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