JPS599489B2 - tempered glass plate - Google Patents

tempered glass plate

Info

Publication number
JPS599489B2
JPS599489B2 JP8078579A JP8078579A JPS599489B2 JP S599489 B2 JPS599489 B2 JP S599489B2 JP 8078579 A JP8078579 A JP 8078579A JP 8078579 A JP8078579 A JP 8078579A JP S599489 B2 JPS599489 B2 JP S599489B2
Authority
JP
Japan
Prior art keywords
glass plate
hanging
tempered glass
depth
strength
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
Application number
JP8078579A
Other languages
Japanese (ja)
Other versions
JPS569235A (en
Inventor
雅之 三輪
博史 辻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP8078579A priority Critical patent/JPS599489B2/en
Publication of JPS569235A publication Critical patent/JPS569235A/en
Publication of JPS599489B2 publication Critical patent/JPS599489B2/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/20Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by gripping tongs or supporting frames
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/04Tempering or quenching glass products using gas
    • C03B27/052Tempering or quenching glass products using gas for flat or bent glass sheets being in a vertical position

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Description

【発明の詳細な説明】 本発明は衝撃強度の犬な2. 5 mm 〜3, 5
mya厚の強化ガラス板に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides high impact strength. 5 mm ~3,5
The present invention relates to a tempered glass plate having a thickness of 100 mm.

自動車の窓ガラス板としては、ガラス板をガラス板吊具
により吊り下げて加熱炉へ入れてガラス板の歪点以上、
軟化点以下の温度に加熱して、所望の形状にプレス成形
し、次いで冷却空気をガラス板の両面に同時に吹き付け
ることによりガラス板を急冷し、冷却時にガラス板の内
外面に生ずる温度差による熱応力を利用して固化された
表面に圧縮応力層を残存させ、強度を向上させた風冷強
化ガラス板が広く使用されている。
For automobile window glass, a glass plate is suspended using a glass plate hanger, placed in a heating furnace, and heated to a temperature above the strain point of the glass plate.
The glass plate is heated to a temperature below its softening point and press-formed into the desired shape, and then the glass plate is rapidly cooled by blowing cooling air onto both sides of the glass plate at the same time. Air-cooled tempered glass plates, which have been solidified using stress and have a compressive stress layer remaining on their surfaces to improve strength, are widely used.

従来においては、この自動車の窓ガラス板としては4闘
〜6I11lI厚のガラス板が使用されていたが、最近
自動車の軽量化の要請に伴なって2.5關〜3.5間厚
の強化ガラスが要求されてきた。
In the past, glass sheets with a thickness of 4 mm to 6 mm and 11 mm were used as window glass plates for automobiles, but recently, with the demand for lighter automobiles, glass plates with a thickness of 2.5 mm to 3.5 mm have been used. Glass was requested.

強化ガラスを製造する際に土記した様な吊り下げ法によ
りガラス板を加熱し、プレス成形して、風冷強化する場
合には、吊其のビス先端が接触するガラス板部分に凹状
の吊孔が生じるが、曲げ強化加工するガラス板の板厚が
2.5朋〜3.5罷と薄い場合には、充分な強化度を高
めるためにガラス板を充分な高温に加熱しなければなら
ないため、上記凹状の吊孔の深さが深くなってしまうと
いう欠点がある。
When manufacturing tempered glass, when a glass plate is heated, press-formed, and air-cooled to strengthen it using a hanging method like the one described above, a concave suspension is placed on the part of the glass plate where the tip of the screw comes into contact with the glass plate. Holes will occur, but if the thickness of the glass plate to be bent and strengthened is as thin as 2.5 to 3.5 mm, the glass plate must be heated to a sufficiently high temperature to increase the degree of reinforcement. Therefore, there is a drawback that the depth of the concave hanging hole becomes deep.

そのため2.5間〜3.5In1K厚の風冷強化ガラス
板にあっては、この種強化ガラスの運搬時、あるいは自
動車窓への嵌め込み等の取扱い時に合せガラスのエツヂ
部に受ける衝撃により上記吊孔部から破壊することがし
ばしば生じ、そのため取扱いが非常に困難となり実用に
は供し得ないものであった。
Therefore, with regard to air-cooled tempered glass sheets with a thickness of 2.5 to 3.5 In 1K, the above-mentioned suspension may occur due to the impact received on the edges of the laminated glass when transporting this type of tempered glass or handling it such as fitting it into a car window. Breakage often occurred from the hole, making handling extremely difficult and impractical.

本発明者は、吊り下げ法により曲げ強化した2.5闘〜
3.5朋厚の強化ガラスの実用化のためにかかるガラス
板の破壊の原因について研究の結果、ガラス板の吊り部
分にガラス板吊其のビス先端が喰い込んで生ずる凹状の
吊孔の深さが強度と著るしく関係があることを見出した
The present inventor has developed a 2.5 to
As a result of research into the causes of breakage of glass plates for the practical use of 3.5 mm thick tempered glass, it was found that the depth of the concave hanging hole that is created when the screw tip of the glass plate hanging part bites into the hanging part of the glass plate. We found that there is a significant relationship between strength and strength.

かかる点について更に実験研究の結果、自動車窓への強
化ガラス嵌め込み時に生ずる端部の応力、例えばハンマ
ーにより強化ガラス板を嵌め込む時に生ずる端部の応力
により強化ガラスが破壊しない様にするためには、ハン
マー強度試験で80111R以上の高さを有する強化ガ
ラス(これは約1000K,/(7)2の破壊応力に相
当する。
As a result of further experimental research on this point, we found that in order to prevent the tempered glass from breaking due to the stress at the edges that occurs when tempered glass is fitted into an automobile window, for example, when a tempered glass plate is fitted with a hammer, , tempered glass with a height of 80111R or higher in the hammer strength test (this corresponds to a breaking stress of approximately 1000K,/(7)2).

)でなければ実用上耐えないことを統計的に見出した。) was statistically found to be practically unbearable.

本発明者はかかる知見に基づいて検討の結果、強化ガラ
ス板の吊孔の深さを0.05〜0.4511Nとするこ
とによりハンマー強度を8011以J:サするこさがで
き、実用強度を満たすことを見出し、本発明として提案
するに到ったものである。
As a result of studies based on this knowledge, the inventor of the present invention found that by setting the depth of the suspension hole of the tempered glass plate to 0.05 to 0.4511N, the hammer strength can be increased to 8011 J: or more, and the practical strength can be increased. The present invention has been proposed as the present invention.

即ち、本発明は、板厚2.5 mm〜3.5間のガラス
板を吊具により吊り下げて加熱炉へ入れ、ガラス板の歪
点以上、軟化点以下の温度まで加熱した後急冷して強化
加工した強化ガラス板において、上記ガラス板のガラス
板吊具の接触部分に生じた凹状の吊孔の深さを0.05
ml1〜0. 4 5 mmの範囲としたことを特徴と
する強化ガラス板に関するものである。
That is, in the present invention, a glass plate having a thickness of 2.5 mm to 3.5 mm is suspended by a hanging tool, placed in a heating furnace, heated to a temperature above the strain point and below the softening point of the glass plate, and then rapidly cooled. In the tempered glass plate that has been strengthened using
ml1~0. The present invention relates to a tempered glass plate characterized by having a thickness in the range of 45 mm.

以下、本発明を更に第1図〜第2図に従って詳細に説明
する。
Hereinafter, the present invention will be further explained in detail with reference to FIGS. 1 and 2.

本発明の強化ガラス10にあっては、ガラス板の曲げ加
工時吊具のビス接触部分のガラス板に生ずる凹状の吊孔
11の深さaが0.05mllr〜0,45間の範囲内
となる様にされており、それによって、強化ガラス板1
0の吊孔部分の強度低下を実用上差支えない範囲に抑え
ている。
In the tempered glass 10 of the present invention, the depth a of the concave hanging hole 11 formed in the glass plate at the screw contact portion of the hanging tool during bending of the glass plate is within the range of 0.05mlr to 0.45ml. By doing so, the tempered glass plate 1
The decrease in strength of the hanging hole portion of 0 is suppressed to a range that does not cause any practical problems.

この強化ガラス板の吊孔の深さが0. 4 5 mNよ
り犬になると、ハンマー強度が8Qmm以下となり、強
度が不足し、実用上適さなくなり、又0.05++lm
より小でもハンマー強度が80龍以下となり強度が不足
し、実用上適さなくなり好ましくない。
The depth of the suspension hole in this tempered glass plate is 0. When the hammer strength becomes smaller than 45 mN, the hammer strength becomes less than 8Qmm, which is insufficient for practical use, and 0.05++ lm.
Even if it is smaller, the hammer strength will be less than 80 dragons, resulting in insufficient strength and being unsuitable for practical use.

吊孔の深さが0.05111より小の場合の強度低下は
、吊孔が生ずるほどガラス板の加熱が充分でなくなり、
それによって冷却クラツクが発生したり、断面歪が不足
となったりするためと思われる。
When the depth of the hanging hole is smaller than 0.05111, the strength decreases because the glass plate is not heated enough to form the hanging hole.
This is thought to be due to the occurrence of cooling cracks and insufficient cross-sectional strain.

なお、ガラス板を吊具により吊下げて曲げ加工する際に
はガラス板を複数個の吊具により吊下げるのが通常であ
るので、複数個の吊孔が発生するが、この吊孔の深さが
いずれも0.05〜0. 4 5 mmの範囲になる様
にするのが好ましい。
In addition, when bending a glass plate by suspending it with a hanging tool, it is normal to suspend the glass plate with multiple hanging tools, so multiple hanging holes are generated, but the depth of these hanging holes is All sizes are 0.05 to 0. Preferably, the distance is within the range of 45 mm.

なお、強化ガラス板の吊孔部付近の強度低下は吊孔の深
さに帰因するものであり、吊孔の径の大小はあまり影響
を及ぼさないことが実験的に確められた。
It has been experimentally confirmed that the decrease in strength near the hanging holes of the tempered glass plate is due to the depth of the hanging holes, and that the diameter of the hanging holes does not have much of an effect.

強化ガラス板の吊孔の深さとハンマー強度との関係は第
5図〜第7図の様になり、上記した吊孔の深さの限定の
理由はかかる図からも更に明らかになるであろう。
The relationship between the depth of the hanging hole in a tempered glass plate and the hammer strength is shown in Figures 5 to 7, and the reason for the limitation on the depth of the hanging hole mentioned above will become clearer from these figures. .

更に、かかる図から、例えば2. 5 1II厚の強化
ガラス板においては吊孔の深さが0. 0 7 Ilm
〜0.25m属・3.0闘厚の強化ガラス板においては
、吊孔の深さがO: 0 6 M1〜0.35朋、又3
.5目厚の強化ガラス板においては、吊孔の深さが0.
05111〜0. 4 5 11程度の範囲が更に充分
な実用強度即ち110n以上のハンマー強度テストを有
し、特に最適であることが認められる。
Furthermore, from this figure, for example 2. 5 In a tempered glass plate with a thickness of 1II, the depth of the hanging hole is 0. 0 7 Ilm
In the tempered glass plate of ~0.25 m and 3.0 thickness, the depth of the hanging hole is O: 06 M1 ~ 0.35 mm, or 3
.. In a tempered glass plate with a thickness of 5 mm, the depth of the hanging hole is 0.
05111~0. A range of about 4 5 11 is found to be particularly optimal as it has sufficient practical strength, ie, a hammer strength test of 110 nm or more.

次に、本発明の強化ガラス板の製造方法について第3〜
4図に示した装置に従って説明する。
Next, the third to
This will be explained according to the apparatus shown in FIG.

第3図において、加工する素板のガラス板1は吊具2に
より吊り下げてハンガーコンベヤー3により矢印方向に
搬送し、加熱炉4内を通過して加熱し、必要に応じてプ
レス装置5の位置において停止して所望の彎曲形状にプ
レス成形し、次いで直ちに強化装置6の位置まで移動し
て、かかる位置で風冷強化される様になっている。
In FIG. 3, a glass plate 1 to be processed is suspended by a hanger 2, conveyed in the direction of the arrow by a hanger conveyor 3, passed through a heating furnace 4 to be heated, and is heated by a press device 5 as necessary. It is stopped at that position and press-formed into a desired curved shape, and then immediately moved to the position of the reinforcing device 6, where it is strengthened by air cooling.

本発明において、吊具2により吊り下げられて加熱され
、プレス成型され、強化されるガラス板は、2. 5
mrtt 〜3, 5 +u+程度と薄いため吊孔の深
さが深くなったり、あるいは又吊具の熱容量が犬である
と吊具部分のガラス板の加熱が不充分となったりして、
吊具2のビス部分7と接触して生じる吊孔部分の強度が
低下する傾向があるので、吊具としては、吊孔の食い込
みが少なく、かつ加熱不足が生じない様に熱容量が少な
いもの、即ち吊其の1個の重量が200I以下の金属製
の軽量吊手が最適に使用できる。
In the present invention, the glass plate that is suspended by the hanger 2, heated, press-molded, and strengthened is 2. 5
mrtt ~3,5 +u+ Because it is thin, the depth of the hanging hole becomes deep, or if the heat capacity of the hanging tool is small, the heating of the glass plate in the hanging tool part becomes insufficient.
Since the strength of the hanging hole that comes into contact with the screw portion 7 of the hanging tool 2 tends to decrease, the hanging tool should be one that has a small amount of heat capacity so that the hanging hole does not dig in and insufficient heating occurs. That is, lightweight metal hangers each weighing 200 I or less can be optimally used.

例えば2.5間厚の強化ガラスを製造する場合には30
&〜4Clの金属製吊具、3間厚の強化ガラスを製造す
る場合には35.9〜45gの金属製吊具が、又3.5
間厚の強化ガラスを製造する場合には40ソ〜100I
の金属製出具が最適である。
For example, when manufacturing tempered glass with a thickness of 2.5 mm, 30
&~4Cl metal hanging tool, 35.9-45g metal hanging tool when manufacturing 3-inch thick tempered glass, and 3.5
When manufacturing thick tempered glass, 40 so to 100 I
metal fittings are best.

又、曲げ強化加工する時にガラス板を吊り下げる吊其の
本数は、吊具1本におおるガラス板の重量があまり犬で
あると吊孔の深さが深くなるので、吊具1本にかかるガ
ラス板の重量は1.5K9以下となる様に設定するのが
好ましい。
Also, when bending and strengthening the glass plate, the number of hangers used to hang the glass plate is limited because if the weight of the glass plate per hanger is too large, the depth of the hanging hole will become deep. The weight of such a glass plate is preferably set to 1.5K9 or less.

なお、1枚のガラス板を吊り下げる吊其の数としては、
作業的に3本〜6本程度とするのが好ましく、又吊具の
間隔は、160間〜300m11程度とするのが実用上
好ましいが、勿論これら本数、間隔に限定されるもので
はない。
In addition, the number of hanging boxes for hanging one glass plate is as follows:
For operational reasons, it is preferable to use about 3 to 6 hanging tools, and it is practically preferable that the spacing between the hanging tools is about 160 to 300 m11, but of course the number and spacing are not limited to these.

又、吊其の先端のビスの形状としては、例えば第4図b
の様なものであって、ビス接触部のガラス板部分に生ず
る応力集中を可及的に少なくすることができる形状が好
ましい。
In addition, the shape of the screw at the tip of the suspension is as shown in Figure 4b, for example.
It is preferable that the shape is such that stress concentration occurring in the glass plate portion of the screw contact portion can be reduced as much as possible.

以下、本発明の実施例について記載する。Examples of the present invention will be described below.

実施例 1 板厚3.5朋のガラス板(寸法:縦563mlll,横
1182jl1、重量3960ソ)を第4図と同様な形
状でビス先端部の径bが3IIIl+I,Rが0. 3
Rである4本の吊具(重量45I)により4点吊りし
て加熱炉へ入れ680℃〜690℃に加熱し、5000
Rの彎曲形状にプレス曲げ加工し、次いで直ちに空気に
より急冷(風圧10001nlllA.9、風冷時間1
5秒)し、強化加工し、各種吊孔の深ちを持つ各種強化
ガラス板をそれぞれの吊孔深さについて各20枚づつ用
意した。
Example 1 A glass plate with a thickness of 3.5 mm (dimensions: length 563 ml, width 1182 ml, weight 3960 mm) was prepared in the same shape as shown in Fig. 4, with a screw tip diameter b of 3IIIl+I and R of 0. 3
It was hung at 4 points using 4 hanging tools (weight: 45I) and placed in a heating furnace, heated to 680°C to 690°C, and heated to 5000°C.
Press bending into a curved shape of R, then immediately quench with air (wind pressure 10001nllllA.9, air cooling time 1
5 seconds) and was strengthened, and 20 tempered glass plates of various types with various hanging hole depths were prepared for each hanging hole depth.

なお、吊孔の深さの調整は吊其の重量の調整、加熱温度
、材質、形状などを適宜選択し、所定の深さとなる様に
行なった。
The depth of the suspension hole was adjusted to a predetermined depth by appropriately selecting the weight, heating temperature, material, shape, etc. of the suspension hole.

この様にして用意された各種吊孔の深さ(0,0.05
, 0.1 0 , 0.15 , 0.20 ,
0.25 ,0.30 , 0.35 , 0.40
, 0.45 , 0.50(朋))の強化ガラス板に
ついて、ハンマー強度テストを行ない、吊孔の深さとハ
ンマー強度テストにおけるハンマー高さの平均との関係
を求めた結果を第5図に示す。
The depth of the various hanging holes prepared in this way (0, 0.05
, 0.1 0 , 0.15 , 0.20 ,
0.25, 0.30, 0.35, 0.40
, 0.45, 0.50 (Tomo)) was subjected to a hammer strength test, and the relationship between the depth of the hanging hole and the average hammer height in the hammer strength test is shown in Figure 5. show.

実施例 2 板厚3間のガラス板(寸法:縦500朋、横1100間
、重量3900.?)を第4図と同様な形状でビス先端
部の径bが3mm,l’{が0. 3 Rである4本の
吊具(重量40g)により4点吊りして加熱炉へ入れ6
80℃〜690℃に加熱し、6000Rの彎曲形状にプ
レス曲げ加熱し、次いで直ちに空気により急冷(風圧1
100ffllXA,?、風冷時間15秒)し、強化加
工し、各種吊孔の深さを持つ各種強化ガラス板をそれぞ
れの吊孔深さについて各20枚づつ用意した。
Example 2 A glass plate with a thickness of 3 mm (dimensions: length: 500 mm, width: 1100 mm, weight: 3900. 3 Hang it at 4 points using 4 R hanging tools (weight 40 g) and put it into the heating furnace 6
Heated to 80°C to 690°C, pressed and bent into a 6000R curved shape, then immediately quenched with air (wind pressure 1
100ffllXA,? , air cooling time: 15 seconds), reinforced glass plates having various hanging hole depths were prepared, 20 sheets each for each hanging hole depth.

なお、吊孔の深さの調整は吊其の重量の調整、加熱温度
、材質、形状などを適宜選択し、所定の深さとなる様に
行なった。
The depth of the suspension hole was adjusted to a predetermined depth by appropriately selecting the weight, heating temperature, material, shape, etc. of the suspension hole.

この様にして用意された各種吊孔の深さ(0,0.05
,0.10,0.15,0.20,0.25,0.30
,0.35 , 0.40 , 0.45 , 0.5
0 (iり)の強化ガラス板lこついて、ハンマー強度
テストを行ない、吊孔の深さとハンマー強度テストにお
けるハンマー高さの平均との関係を求めた結果を第6図
に示す。
The depth of the various hanging holes prepared in this way (0, 0.05
,0.10,0.15,0.20,0.25,0.30
, 0.35 , 0.40 , 0.45 , 0.5
A hammer strength test was conducted using a tempered glass plate of 0 (i), and the relationship between the depth of the suspension hole and the average height of the hammer in the hammer strength test is shown in FIG.

実施例 3 板厚2.5朋のガラス板(寸法:縦496朋、横106
1111一重量3200/)を第4図と同様な形状でビ
ス先端部の径bが3絹、Rが0.3Rである4本の吊具
(重量35.!l/)により4点吊りして加熱炉へ入れ
680〜690℃に加熱し、IOOOORの彎曲形状に
プレス曲げ加工し、次いで直ちに空気により急冷し(風
圧1 0 0 0mlnAll、風冷時間15秒)し、
強化加工し、各種吊孔の深さを持つ各種強化ガラス板を
それぞれの吊孔深さについて各20枚づつ用意した。
Example 3 Glass plate with a thickness of 2.5 mm (dimensions: length 496 mm, width 106 mm
1111 - weight 3200/) was hung at 4 points using four hanging tools (weight 35.!l/) having a shape similar to that shown in Fig. 4 and having screw tip diameter b of 3 silk and radius R of 0.3 R. It was put into a heating furnace and heated to 680 to 690°C, press-bent into a curved shape of IOOOOR, and then immediately quenched with air (wind pressure 1000mlnAll, air cooling time 15 seconds),
Various types of tempered glass plates that had been strengthened and had various hanging hole depths were prepared, 20 each for each hanging hole depth.

なお、吊孔の深さの調整は吊其の重量の調整、加熱温度
、材質、形状などを適宜選択し、所定の深さとなる様に
行なった。
The depth of the suspension hole was adjusted to a predetermined depth by appropriately selecting the weight, heating temperature, material, shape, etc. of the suspension hole.

この様にして用意された各種吊孔の深さ(0,0.05
,0.10,0.15,0.20,0.25,0.30
,0.3 5 , 0.4 0 , 0.4 5 ,
0.5 o(mm))の強化ガラス板について、ハンマ
ー強度テストを行ない、吊孔の深さとハンマー強度テス
トにおけるハンマー高さの平均値との関係を求めた結果
を第7図に示す。
The depth of the various hanging holes prepared in this way (0, 0.05
,0.10,0.15,0.20,0.25,0.30
, 0.3 5 , 0.4 0 , 0.4 5 ,
A hammer strength test was conducted on a tempered glass plate of 0.5 o (mm)), and the relationship between the depth of the hanging hole and the average value of the hammer height in the hammer strength test is shown in Figure 7.

かかる図から明らかな様に、板厚2.5玉の強化ガラス
板においては、0. 4 5 mlNより犬及び0.0
5朋より小ではハンマー強度テストの結果が80朋以下
となり、実用強度を満さないこさが示される。
As is clear from this figure, the tempered glass plate with a thickness of 2.5 glass has a thickness of 0. 4 5 mlN to dog and 0.0
If the strength is less than 5, the result of the hammer strength test will be 80 or less, indicating that the strength does not meet the practical strength.

尚、強化ガラス板のハンマー強度テストは第8図の様に
ガラス板20と同一曲率で仕上げられた木型枠21の上
に10目厚、幅20闘の木製スペーサ−22を第8図の
様に敷き、その上に強化ガラス板を密着しておき、ター
ミナル接着部又は吊孔部の反対側同位置に1.6KPの
ゴムハンマー23を順次高さを高くしてハンマー落下領
域24(径c=65mm)に自然落下させガラス板20
の破損した時の高さを表示比較したものであり、高さが
犬なほど破壊強度が犬であることを示す。
In addition, the hammer strength test of the tempered glass plate was performed by placing a wooden spacer 22 with a thickness of 10 mm and a width of 20 mm on top of a wooden form 21 finished with the same curvature as the glass plate 20 as shown in Figure 8. A reinforced glass plate is placed on top of the reinforced glass plate, and a 1.6 KP rubber hammer 23 is placed at the same position on the opposite side of the terminal adhesion part or hanging hole part, increasing the height one by one to create a hammer fall area 24 (diameter). c = 65 mm) and let the glass plate 20
It is a display comparison of the height when broken, and the higher the height, the higher the breaking strength.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の強化ガラス板の正面図、第2図は本発
明に係る強化ガラス板の吊孔部分の横断面図、第3図は
本発明の強化ガラス板を製造するための装置の1例の概
略図、第4図はガラス板を吊具により吊下げた状態を示
す図面、第5へ7図は強化ガラス板の吊孔深さと強度と
の関係を示す図面、第8図はハンマー強度テスト方法を
図す図面である。 1:ガラス板、2:吊具、3:ハンガーコンベヤー、4
:加熱炉、5:プレス成型装置、6:風冷強化装置、7
:吊其のビス、10:強化ガラス板、11:吊孔。
Fig. 1 is a front view of the tempered glass plate of the present invention, Fig. 2 is a cross-sectional view of the hanging hole portion of the tempered glass plate of the present invention, and Fig. 3 is an apparatus for manufacturing the tempered glass plate of the present invention. 4 is a diagram showing a state in which the glass plate is suspended by a hanging tool, Figures 5 to 7 are diagrams showing the relationship between the suspension hole depth and strength of a tempered glass plate, and Figure 8 is a diagram illustrating a hammer strength test method. 1: Glass plate, 2: Hanging tool, 3: Hanger conveyor, 4
: Heating furnace, 5: Press molding device, 6: Air cooling reinforcement device, 7
: Hanging screw, 10: Tempered glass plate, 11: Hanging hole.

Claims (1)

【特許請求の範囲】[Claims] 1 板厚2.51〜3.5mmのガラス板を吊具により
吊り下げてガラス板の歪点以上、軟化点以下の温度まで
加熱した後急冷して強化加工した強化ガラス板において
、上記ガラス板の吊具との接触部分に生じる凹状の吊孔
の深さを0. 0 5 11m〜0. 4 5 mW+
の範囲としたことを特徴とする強化ガラス板。
1. A tempered glass plate obtained by suspending a glass plate with a thickness of 2.51 to 3.5 mm using a hanging tool, heating it to a temperature above the strain point and below the softening point of the glass plate, and then rapidly cooling it to strengthen it. The depth of the concave hanging hole created at the contact part with the hanging tool is set to 0. 0 5 11m~0. 4 5 mW+
A tempered glass plate characterized by having a range of.
JP8078579A 1979-06-28 1979-06-28 tempered glass plate Expired JPS599489B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8078579A JPS599489B2 (en) 1979-06-28 1979-06-28 tempered glass plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8078579A JPS599489B2 (en) 1979-06-28 1979-06-28 tempered glass plate

Publications (2)

Publication Number Publication Date
JPS569235A JPS569235A (en) 1981-01-30
JPS599489B2 true JPS599489B2 (en) 1984-03-02

Family

ID=13728092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8078579A Expired JPS599489B2 (en) 1979-06-28 1979-06-28 tempered glass plate

Country Status (1)

Country Link
JP (1) JPS599489B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593061U (en) * 1982-06-29 1984-01-10 日本バルカ−工業株式会社 Anti-corrosion spiral wound gasket
JPH0417563Y2 (en) * 1985-02-27 1992-04-20

Also Published As

Publication number Publication date
JPS569235A (en) 1981-01-30

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