JP2001180953A - Glass article for building material and producing method - Google Patents

Glass article for building material and producing method

Info

Publication number
JP2001180953A
JP2001180953A JP2000217846A JP2000217846A JP2001180953A JP 2001180953 A JP2001180953 A JP 2001180953A JP 2000217846 A JP2000217846 A JP 2000217846A JP 2000217846 A JP2000217846 A JP 2000217846A JP 2001180953 A JP2001180953 A JP 2001180953A
Authority
JP
Japan
Prior art keywords
glass
building materials
glass article
article
less
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.)
Granted
Application number
JP2000217846A
Other languages
Japanese (ja)
Other versions
JP4029548B2 (en
Inventor
Noriaki Masuda
紀彰 益田
Takehiro Shibuya
武宏 渋谷
Takashi Ota
貴 太田
Yasuhiro Baba
康弘 馬場
Original Assignee
Nippon Electric Glass Co Ltd
日本電気硝子株式会社
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Filing date
Publication date
Priority to JP29045299 priority Critical
Priority to JP11-290452 priority
Application filed by Nippon Electric Glass Co Ltd, 日本電気硝子株式会社 filed Critical Nippon Electric Glass Co Ltd
Priority to JP2000217846A priority patent/JP4029548B2/en
Publication of JP2001180953A publication Critical patent/JP2001180953A/en
Application granted granted Critical
Publication of JP4029548B2 publication Critical patent/JP4029548B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a glass article with glassy texture produced in a low cost for building materials without any breakage even by a thermal shock resulting from cooling in a heat treatment process and intense atmospheric temperature variation. SOLUTION: A glass article for building materials 10 of the present invention consists of glass 11 with mean coefficient of thermal expansion of 70×10-7/ deg.C or less in 30-380 deg.C and includes a number of blow holes 12 in its inside.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、建築物の内外装
材、床材等の化粧材として使用される建材用ガラス物品
及びその製造方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass article for a building material used as a decorative material such as an interior / exterior material of a building and a floor material, and a method for producing the same.

【0002】[0002]

【従来の技術】内外装材、床材等の化粧材として用いる
建材用ガラス物品としては、結晶化ガラス建材が広く知
られている。結晶化ガラス建材は、その意匠性から、天
然石の代替品として用いられてきた。
2. Description of the Related Art Crystallized glass building materials are widely known as glass materials for building materials used as decorative materials such as interior / exterior materials and flooring materials. Crystallized glass building materials have been used as substitutes for natural stone due to their design properties.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、結晶化
ガラス建材は、内部全体に亘って結晶が析出しており、
外部からの可視光が表面近傍でほとんど反射してしまう
ため、ガラスよりは石材のイメージが強く、ガラスの質
感に乏しかった。
However, in the crystallized glass building material, crystals are precipitated all over the interior,
Since the visible light from the outside is almost reflected near the surface, the image of the stone is stronger than the glass, and the texture of the glass is poor.

【0004】また、結晶化ガラス建材は、先ず、熱処理
して結晶が析出する特殊な専用材質を溶融窯で溶融し、
水砕して粒状の結晶性ガラスを得、その結晶性ガラスを
耐火性枠内に集積し、1100℃程度の高温で熱処理
し、その後、表面を研磨し、所望のサイズに切断、面取
り等の加工を行うといった非常に煩雑な製造工程を経る
ため、非常に高価なものになってしまうという問題点を
有していた。
[0004] In addition, the crystallized glass building material is first melted in a melting furnace with a special material which is crystallized by heat treatment.
Granulated crystalline glass is obtained by water granulation, the crystalline glass is accumulated in a refractory frame, heat-treated at a high temperature of about 1100 ° C., and then the surface is polished and cut into a desired size, such as cutting and chamfering. There has been a problem that the production process is very expensive because of a very complicated manufacturing process such as processing.

【0005】上記の問題点を解決するために、ソーダ石
灰ガラスからなる板ガラスやビンガラスを粗砕し、軟化
流動を起こす温度で熱処理し、建材用ガラス物品を得よ
うとすることも試みられているが、熱処理工程における
冷却時の熱衝撃や、激しい気温の変化による熱衝撃でも
破損しやすいという問題点がある。
[0005] In order to solve the above problems, attempts have been made to obtain glass articles for building materials by roughly crushing a plate glass or bottle glass made of soda-lime glass and heat-treating the glass at a temperature causing softening flow. However, there is a problem that it is easily damaged by a thermal shock at the time of cooling in a heat treatment step or a thermal shock due to a drastic change in air temperature.

【0006】本発明の目的は、熱処理工程における冷却
時の熱衝撃や、激しい気温の変化による熱衝撃でも破損
することが無く、安価に製造でき、ガラスの質感を持っ
た建材用ガラス物品を提供するものである。
An object of the present invention is to provide a glass article for building materials which can be manufactured at a low cost and has a glass texture without being damaged by a thermal shock at the time of cooling in a heat treatment step or a thermal shock due to a severe change in temperature. Is what you do.

【0007】[0007]

【課題を解決するための手段】本発明の建材用ガラス物
品は、30〜380℃における平均熱膨張係数が70×
10-7/℃以下で、且つ、波長400〜700nmの範
囲において、肉厚7mmで平均透過率が15〜85%で
あるガラスからなることを特徴とする。また、本発明の
建材用ガラス物品の製造方法は、一種又は二種以上の材
質からなる薄片状、小片状または粒状のガラスを複数個
用意し、耐火性セラミックス粉末を塗布した耐火性容器
内にガラスを充填し、700〜1100℃の温度で熱処
理する建材用ガラス物品の製造方法であって、30〜3
80℃における平均熱膨張係数が70×10-7/℃以下
であるガラスを使用することを特徴とする。
The glass article for building material of the present invention has an average coefficient of thermal expansion at 30 to 380 ° C. of 70 ×.
It is characterized by being made of glass having a thickness of 7 mm and an average transmittance of 15 to 85% at a temperature of 10 −7 / ° C. or less and a wavelength of 400 to 700 nm. Further, the method for producing a glass article for building materials of the present invention is a method for preparing a plurality of flaky, small flake or granular glass made of one or more materials, and applying a refractory ceramic powder in a refractory container. Is a method for producing a glass article for a building material, wherein the glass is filled with glass and heat-treated at a temperature of 700 to 1100 ° C.
A glass having an average coefficient of thermal expansion at 80 ° C. of 70 × 10 −7 / ° C. or less is used.

【0008】[0008]

【作用】本発明の建材用ガラス物品は、30〜380℃
における平均熱膨張係数が70×10-7/℃以下のガラ
スからなるため、熱処理工程における冷却時の熱衝撃
や、激しい気温の変化による熱衝撃でも破損することが
無い。
The glass article for building materials of the present invention has a temperature of 30 to 380 ° C.
Is made of glass having an average coefficient of thermal expansion of 70 × 10 −7 / ° C. or less, so that it is not damaged by thermal shock at the time of cooling in a heat treatment step or thermal shock due to a sharp change in air temperature.

【0009】また、本発明の建材用ガラス物品は、波長
400〜700nmの範囲において、肉厚7mmで平均
透過率が15〜85%であるガラスからなるため、ガラ
スの質感に富んだガラス物品になる。即ち、波長400
〜700nmの範囲において、肉厚7mmで平均透過率
が15%より低いと、可視光が表面近傍でほとんど反射
してしまうため、ガラスの質感が得られず、平均透過率
が85%を超えると、施工した際、構造材が透けて見え
るためである。
Further, the glass article for building materials of the present invention is made of glass having a thickness of 7 mm and an average transmittance of 15 to 85% in a wavelength range of 400 to 700 nm. Become. That is, the wavelength 400
If the average transmittance is less than 15% at a thickness of 7 mm in the range of 700 nm to 700 nm, visible light is almost reflected near the surface, so that the texture of the glass cannot be obtained, and when the average transmittance exceeds 85%. This is because, when constructed, the structural material can be seen through.

【0010】また、本発明の建材用ガラス物品は、ガラ
スがB23−SiO2系、Al23−SiO2系あるいは
23−Al23−SiO2系ガラスからなることが好
ましい。即ち、B23−SiO2系、Al23−SiO2
系あるいはB23−Al23−SiO2系ガラスは、熱
衝撃に強く、耐薬品性に優れているため、熱処理工程に
おける冷却時の熱衝撃や、激しい気温の変化による熱衝
撃でも破損する事が無く、耐候性に優れているからであ
る。
In the glass article for building materials of the present invention, the glass is made of B 2 O 3 —SiO 2 system, Al 2 O 3 —SiO 2 system or B 2 O 3 —Al 2 O 3 —SiO 2 system glass. Is preferred. That is, B 2 O 3 —SiO 2 system, Al 2 O 3 —SiO 2
Glass or B 2 O 3 —Al 2 O 3 —SiO 2 glass is resistant to thermal shock and excellent in chemical resistance. This is because there is no breakage and the weather resistance is excellent.

【0011】また、本発明の建材用ガラス物品は、ガラ
スが、102〜1012個/kgの気孔を有していると、
波長400〜700nmの範囲において、肉厚7mmで
平均透過率が15〜85%になるため好ましい。即ち、
ガラス物品内部の気孔が、外部からガラス物品表面に入
射した可視光を反射あるいは散乱するため、気孔の量に
よって平均透過率を調整できるからである。
The glass article for building materials of the present invention is characterized in that the glass has pores of 10 2 to 10 12 / kg.
In the wavelength range of 400 to 700 nm, the average transmittance is preferably 15 to 85% at a thickness of 7 mm, which is preferable. That is,
This is because the pores inside the glass article reflect or scatter visible light incident on the glass article surface from the outside, so that the average transmittance can be adjusted by the amount of pores.

【0012】また、本発明の建材用ガラス物品は、波長
400〜700nmの範囲において、肉厚7mmで平均
透過率が15〜85%になれば、分相していても構わな
い。
The glass article for building materials of the present invention may be phase-separated in the wavelength range of 400 to 700 nm as long as the average transmittance is 7 to 85% at a thickness of 7 mm.

【0013】さらに、本発明のガラス物品は、ガラスの
意匠面の正反射率が高いと、太陽光や照明等の光が意匠
面に反射して、直接人の目に入り眩しく感じるが、正反
射率が2%以下であると、太陽光や照明等の光が意匠面
で乱反射して、柔らかな光になり目にやさしいため好ま
しい。
Furthermore, in the glass article of the present invention, when the specular reflectance of the glass design surface is high, light such as sunlight or illumination is reflected on the design surface and directly enters the eyes of the person and is dazzling. When the reflectance is 2% or less, light such as sunlight or lighting is irregularly reflected on the design surface, becomes soft light, and is easy on the eyes, which is preferable.

【0014】本発明の建材用ガラスの製造方法は、一種
又は二種以上の材質からなる薄片状、小片状または粒状
のガラスを複数個用意し、耐火性セラミックス粉末を塗
布した耐火性容器内にガラスを充填し、700〜110
0℃の温度で熱処理する建材用ガラス物品の製造方法で
あって、30〜380℃における平均熱膨張係数が70
×10-7/℃以下であるガラスを使用するため、本発明
の建材用ガラス物品は、熱処理工程における冷却時の熱
衝撃によって破損することが無く、安価に製造できる。
即ち、本発明の建材用ガラス物品は、熱衝撃に強い熱膨
張係数が70×10-7/℃以下のガラスを用い、また、
熱処理後の研磨、切断加工、面取り加工等の工程を経ず
に製品が製造できるからである。
The method for producing glass for building materials according to the present invention is a method for preparing a plurality of flaky, small or granular glass made of one or more kinds of materials and applying the refractory ceramic powder to the inside of a refractory container. Is filled with glass, 700-110
A method for producing a glass article for building material which is heat-treated at a temperature of 0 ° C, wherein the average thermal expansion coefficient at 30 to 380 ° C is 70.
Since glass having a temperature of 10-7 / C or less is used, the glass article for building materials of the present invention can be manufactured at low cost without being damaged by thermal shock during cooling in the heat treatment step.
That is, the glass material for building materials of the present invention uses a glass having a thermal expansion coefficient resistant to thermal shock of 70 × 10 −7 / ° C. or less,
This is because a product can be manufactured without going through steps such as polishing, cutting, and chamfering after heat treatment.

【0015】また、本発明の建材用ガラス物品の製造方
法は、0.5〜50mmの大きさの薄片状、小片状また
は粒状のガラスを用いることが好ましい。即ち、ガラス
が0.5mmより小さいと、ガラス中の気孔が1012
/kgよりも多くなり、波長400〜700nmの範囲
において、肉厚7mmで平均透過率が15%よりも低く
なるため、ガラスの質感に乏しく、また、粉砕のために
コストがかかりすぎるため経済的でなく、50mmを超
えると,ガラス中の気孔が102個/kgよりも少なく
なり、波長400〜700nmの範囲において、肉厚7
mmで平均透過率が85%を超えてしまい、また、ガラ
ス中の気孔が大きくなり、強度劣化を起こすためであ
る。
In the method for producing a glass article for building materials of the present invention, it is preferable to use a flaky, small, or granular glass having a size of 0.5 to 50 mm. That is, when the glass is smaller than 0.5 mm, the number of pores in the glass is larger than 10 12 / kg, and in the wavelength range of 400 to 700 nm, the average transmittance is lower than 15% at a thickness of 7 mm, It is not economical because the texture of the glass is poor and the cost is too high for pulverization. If it exceeds 50 mm, the number of pores in the glass will be less than 10 2 / kg, and in the wavelength range of 400 to 700 nm, Wall thickness 7
In mm, the average transmittance exceeds 85%, and the pores in the glass become large, causing strength deterioration.

【0016】また、薄片状、小片状または粒状のガラス
に予め、耐火性着色顔料粉末を所定量混合することによ
って、建材用ガラス物品を着色することも可能である。
The glass article for building materials can be colored by previously mixing a predetermined amount of a refractory coloring pigment powder with flaky, small flake or granular glass.

【0017】耐火性セラミックス粉末は、ガラス物品と
耐火性容器との離型材として作用するものであれば何ら
制限なく使用できるが、特に珪砂、アルミナ粉末、ジル
コニア粉末、及び石膏粉末が好ましく、単独あるいは組
み合わせて用いても良い。
The refractory ceramic powder can be used without any limitation as long as it acts as a mold release material between the glass article and the refractory container. In particular, silica sand, alumina powder, zirconia powder, and gypsum powder are preferable. They may be used in combination.

【0018】耐火性容器は、1100℃以下の温度で軟
化変形しない材質が好ましく、ムライト、コージエライ
ト、アルミナセラミックス製等の耐火性容器が好適であ
る。また、耐火性セラミックス粉末を耐火性容器内に塗
布する方法は、エアースプレー塗装、刷毛塗装、浸漬塗
装等の方法が好適である。
The refractory container is preferably made of a material that does not soften and deform at a temperature of 1100 ° C. or less, and is preferably a refractory container made of mullite, cordierite, alumina ceramic or the like. Further, as a method for applying the refractory ceramic powder in the refractory container, a method such as air spray coating, brush coating, dip coating, or the like is suitable.

【0019】また、本発明の建材用ガラス物品の製造方
法では、700〜1100℃、好ましくは800〜10
00℃で熱処理する。熱処理温度が700℃より低い
と、軟化流動が充分に行われず、機械的強度が低くな
り、1100℃を超えると、ガラス物品の気孔が少なく
なり、可視光の透過率が高くなって、施工時に構造材が
透けて見え、また、ガラスと耐火性セラミックス粉末の
離型材との反応性が高くなり、ガラスと耐火性容器とが
融着しやすくなるため好ましくない。
In the method for producing a glass article for building materials of the present invention, the temperature is 700 to 1100 ° C., preferably 800 to 100 ° C.
Heat treatment at 00 ° C. When the heat treatment temperature is lower than 700 ° C., the softening flow is not sufficiently performed, and the mechanical strength is low. It is not preferable because the structural material is seen through, and the reactivity between the glass and the release material of the refractory ceramic powder is increased, so that the glass and the refractory container are easily fused.

【0020】また、本発明の建材用ガラス物品の製造方
法は、ガラスがリボイルする温度範囲内で熱処理する
と、ガラス片や粒の間隙によってできる気孔に加えて、
リボイルによりガラス物品内部に気孔が生成されるため
好ましい。ガラス内部に溶存していたガスが気孔となっ
て現れ始める温度は、ガラスの軟化点よりも約50℃高
い温度である。熱処理温度をさらに上昇させると、それ
に伴い、ガラス内部での気孔の生成がさらに活発になる
が、ガラスの粘度も低下するため、生成した気孔は、次
第に大きくなり、浮上してガラスの外部に放出されてし
まう。ここでは、ガラスがリボイルする温度範囲とは、
ガラス内部に溶存していたガスが気孔となって現れ始め
てからガラスの外部に放出されてしまうまでの温度範囲
を指し、例えば、B23−SiO2系ガラスでは、約8
00〜1000℃となる。
Further, the method for producing a glass article for building materials according to the present invention is characterized in that, when heat treatment is performed within a temperature range in which glass is reboiled, in addition to pores formed by glass fragments and gaps between grains,
The reboil is preferable because pores are generated inside the glass article. The temperature at which the gas dissolved inside the glass starts to appear as pores is a temperature about 50 ° C. higher than the softening point of the glass. As the heat treatment temperature is further increased, pores are more actively generated inside the glass, but the viscosity of the glass is also reduced, so the pores gradually become larger and float out of the glass. Will be done. Here, the temperature range in which the glass is reboiled is
Refers to the temperature range of the gas that has been dissolved in the glass is beginning to appear as pores until it is released to the outside of the glass, for example, in the B 2 O 3 -SiO 2 glass, about 8
It becomes 00-1000 degreeC.

【0021】[0021]

【実施例】図1に本発明の建材用ガラス物品の斜視図を
示す。
FIG. 1 is a perspective view of a glass article for building materials according to the present invention.

【0022】本発明の建材用ガラス物品10は、30〜
380℃における平均熱膨張係数が70×10-7/℃以
下のガラス11からなり、内部に気孔12が多数含まれ
ている。
The glass article 10 for building materials of the present invention has
It is made of glass 11 having an average coefficient of thermal expansion at 380 ° C. of 70 × 10 −7 / ° C. or less, and contains many pores 12 therein.

【0023】表1に本発明の実施例を、表2に比較例を
示す。
Table 1 shows examples of the present invention, and Table 2 shows comparative examples.

【0024】[0024]

【表1】 [Table 1]

【0025】[0025]

【表2】 [Table 2]

【0026】まず、内寸が200×100×150mm
のコージエライト製容器の内壁に、珪砂のスラリーを刷
毛で塗布し、次いで、その耐火性容器内に30mm以下
の小片状の表1及び2に示す材質のガラスを各々充填
し、表に示す温度で5時間熱処理し、実施例1〜5及び
比較例1〜3に示す197×97×60mmのブロック
状の建材用ガラス物品を得た。
First, the inner dimensions are 200 × 100 × 150 mm
A slurry of silica sand is applied to the inner wall of the cordierite container by a brush, and then the refractory container is filled with small pieces of glass having a size of 30 mm or less and having the materials shown in Tables 1 and 2, respectively. For 5 hours to obtain 197 × 97 × 60 mm block-shaped glass articles for building materials shown in Examples 1 to 5 and Comparative Examples 1 to 3.

【0027】気孔量は、作製したガラス物品を約30×
30×10mmに切断し、その重量を測定し、次いで、
その中に存在する気孔数をカウントし、単位重量当たり
の個数に換算して求めた。尚、比較例1の結晶化ガラス
物品は、結晶が析出し、可視光が全く透過しないため、
内部の気孔を観察できず、測定不能であった。30〜3
80℃における平均熱膨張係数は理学製熱機械分析装置
で測定した。波長400〜700nmの範囲における、
肉厚7mmでの平均透過率は、島津製分光光度計(UV
2500PC)で、意匠面の正反射率は、島津製分光光
度計(UV3100PC)で測定した。
The porosity was about 30 ×
Cut to 30 × 10 mm, weigh it, then
The number of pores present therein was counted and converted to the number per unit weight. Note that, in the crystallized glass article of Comparative Example 1, since crystals were precipitated and no visible light was transmitted at all,
The internal pores could not be observed and measurement was impossible. 30-3
The average coefficient of thermal expansion at 80 ° C. was measured with a Rigaku thermomechanical analyzer. In the wavelength range of 400 to 700 nm,
The average transmittance at a wall thickness of 7 mm is measured by Shimadzu spectrophotometer (UV
2500PC), and the specular reflectance of the design surface was measured with a Shimadzu spectrophotometer (UV3100PC).

【0028】比較例1の結晶化ガラス物品は、熱処理工
程における冷却時の破損は無かったが、結晶が析出して
いるため、平均透過率が低く、ガラスの質感に乏しかっ
た。比較例2は、Na2O−CaO−SiO2系ガラスを
使用しているため、熱膨張係数が高く、熱処理工程にお
ける冷却時の破損が発生した。また、比較例3は、熱処
理温度が高いため、気孔が少なく、平均透過率が90%
と高く、施工時に構造材が透けて見えた。
The crystallized glass article of Comparative Example 1 had no breakage during cooling in the heat treatment step, but had low average transmittance and poor glass texture due to precipitation of crystals. In Comparative Example 2, since the Na 2 O—CaO—SiO 2 system glass was used, the coefficient of thermal expansion was high, and breakage during cooling in the heat treatment step occurred. In Comparative Example 3, since the heat treatment temperature was high, the number of pores was small, and the average transmittance was 90%.
It was high, and the structural material was seen through during construction.

【0029】これに対し、実施例1〜5は、熱膨張係数
が70×10-7/℃以下のガラスを用いているため、熱
処理工程における冷却時の破損が無く、また、平均透過
率が15〜85%の範囲内にあるため、ガラスの質感に
富んだ建材用ガラス物品となった。
On the other hand, in Examples 1 to 5, since the glass having a coefficient of thermal expansion of 70 × 10 −7 / ° C. or less was used, there was no breakage during cooling in the heat treatment step, and the average transmittance was low. Since it was within the range of 15 to 85%, a glass article for building materials having a rich texture of glass was obtained.

【0030】また、実施例1〜5の意匠面の正反射率は
2%以下であるため、太陽光や照明等の光が意匠面で乱
反射して、柔らかな光になり目にやさしい。
Further, since the specular reflectance of the design surface of each of Examples 1 to 5 is 2% or less, light such as sunlight or illumination is irregularly reflected on the design surface and becomes soft light, which is easy on the eyes.

【0031】[0031]

【効果】以上説明したように、本発明の建材用ガラス物
品は、熱膨張係数の70×10 -7/℃以下のガラスを使
用し、それを耐火性容器内に充填して、熱処理し製造す
るため、熱処理工程における冷却時の熱衝撃や、激しい
気温の変化による熱衝撃でも破損することが無く、安価
に製造でき、ガラスの質感に富んだ、内外装材あるいは
床材等の化粧材として好適な建材用ガラス物品を提供で
きる。
As described above, as described above, the glass material for building materials of the present invention
The product has a thermal expansion coefficient of 70 × 10 -7Use glass with a temperature of
Into a refractory container, heat-treated and
Therefore, thermal shock during cooling in the heat treatment process,
Inexpensive without being damaged by thermal shock due to temperature changes
Interior and exterior materials with rich glass texture
Providing glass articles for building materials suitable as decorative materials such as flooring
Wear.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の建材用ガラス物品の斜視図である。FIG. 1 is a perspective view of a glass article for building materials of the present invention.

【符号の説明】[Explanation of symbols]

10 建材用ガラス物品 11 ガラス 12 気孔 10 Glass article for building materials

───────────────────────────────────────────────────── フロントページの続き (72)発明者 馬場 康弘 滋賀県大津市晴嵐2丁目7番1号 日本電 気硝子株式会社内 Fターム(参考) 4G062 AA12 BB01 BB05 BB06 CC01 DA02 DB02 DC02 MM01 NN01 NN29  ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yasuhiro Baba 2-7-1 Hararashi, Otsu-shi, Shiga F-term in Nippon Electric Glass Co., Ltd. 4G062 AA12 BB01 BB05 BB06 CC01 DA02 DB02 DC02 MM01 NN01 NN29

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 30〜380℃における平均熱膨張係数
が70×10-7/℃以下で、且つ、波長400〜700
nmの範囲において、肉厚7mmで平均透過率が15〜
85%であるガラスからなることを特徴とする建材用ガ
ラス物品。
An average thermal expansion coefficient at 30 to 380 ° C. is 70 × 10 −7 / ° C. or less, and a wavelength of 400 to 700.
In the range of nm, the average transmittance is 15 to
A glass article for building materials, comprising 85% of glass.
【請求項2】 ガラスが、B23−SiO2系、Al2
3−SiO2系あるいはB23−Al23−SiO2系ガ
ラスからなることを特徴とする請求項1の建材用ガラス
物品。
2. The glass is a B 2 O 3 —SiO 2 system, Al 2 O
3 -SiO 2 system or B 2 O 3 -Al 2 O 3 for building materials glass article of claim 1, characterized in that it consists -SiO 2 based glass.
【請求項3】 ガラスが、102〜1012個/kgの気
孔を有することを特徴とする請求項1の建材用ガラス物
品。
3. The glass article for building materials according to claim 1, wherein the glass has pores of 10 2 to 10 12 pores / kg.
【請求項4】 ガラスの意匠面の正反射率が、2%以下
であることを特徴とする請求項1の建材用ガラス物品。
4. The glass article for building materials according to claim 1, wherein the specular reflectance of the design surface of the glass is 2% or less.
【請求項5】 一種又は二種以上の材質からなる薄片
状、小片状または粒状のガラスを複数個用意し、耐火性
セラミックス粉末を塗布した耐火性容器内にガラスを充
填し、700〜1100℃の温度で熱処理する建材用ガ
ラス物品の製造方法であって、30〜380℃における
平均熱膨張係数が70×10-7/℃以下であるガラスを
使用することを特徴とする建材用ガラス物品の製造方
法。
5. A plurality of flaky, small, or granular glasses made of one or more materials are prepared, and the glass is filled in a fire-resistant container coated with a fire-resistant ceramic powder. A method for producing a glass material for building materials, which is heat-treated at a temperature of ℃, using glass having an average coefficient of thermal expansion at 30 to 380 ℃ of 70 × 10 -7 / ℃ or less. Manufacturing method.
【請求項6】 ガラスがリボイルする温度範囲内で熱処
理することを特徴とする請求項5の建材用ガラス物品の
製造方法。
6. The method according to claim 5, wherein the heat treatment is performed within a temperature range in which the glass is reboiled.
JP2000217846A 1999-10-13 2000-07-18 Glass article for building material and method for producing the same Expired - Fee Related JP4029548B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP29045299 1999-10-13
JP11-290452 1999-10-13
JP2000217846A JP4029548B2 (en) 1999-10-13 2000-07-18 Glass article for building material and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000217846A JP4029548B2 (en) 1999-10-13 2000-07-18 Glass article for building material and method for producing the same

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JP2001180953A true JP2001180953A (en) 2001-07-03
JP4029548B2 JP4029548B2 (en) 2008-01-09

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Cited By (9)

* Cited by examiner, † Cited by third party
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JP2004203656A (en) * 2002-12-25 2004-07-22 Nippon Electric Glass Co Ltd Building glass article, and production method therefor
JP2006117525A (en) * 2004-10-21 2006-05-11 Schott Ag Method and device for casting glass block
JP2007131480A (en) * 2005-11-10 2007-05-31 Nippon Electric Glass Co Ltd Crystallized glass article
JP2008031031A (en) * 2006-06-29 2008-02-14 Nippon Electric Glass Co Ltd Building glass article and its manufacturing method
JP2009167788A (en) * 2007-10-30 2009-07-30 Nippon Electric Glass Co Ltd Building glass article and its manufacturing method
JP2009173517A (en) * 2007-08-31 2009-08-06 Nippon Electric Glass Co Ltd Glass member aggregate for building use and manufacturing method thereof
DE102013015934A1 (en) 2013-09-18 2015-03-19 Friedrich-Schiller-Universität Jena Rare earth doped aluminosilicate glasses, especially for use as active lasant material in high performance bulk lasers
JP2016108179A (en) * 2014-12-05 2016-06-20 京セラメディカル株式会社 Glass ceramic
JP2016108178A (en) * 2014-12-05 2016-06-20 京セラメディカル株式会社 Glass block

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004203656A (en) * 2002-12-25 2004-07-22 Nippon Electric Glass Co Ltd Building glass article, and production method therefor
JP2006117525A (en) * 2004-10-21 2006-05-11 Schott Ag Method and device for casting glass block
JP4560474B2 (en) * 2004-10-21 2010-10-13 ショット アクチエンゲゼルシャフト Method and apparatus for casting glass blocks
JP2007131480A (en) * 2005-11-10 2007-05-31 Nippon Electric Glass Co Ltd Crystallized glass article
JP2008031031A (en) * 2006-06-29 2008-02-14 Nippon Electric Glass Co Ltd Building glass article and its manufacturing method
JP2009173517A (en) * 2007-08-31 2009-08-06 Nippon Electric Glass Co Ltd Glass member aggregate for building use and manufacturing method thereof
JP2009167788A (en) * 2007-10-30 2009-07-30 Nippon Electric Glass Co Ltd Building glass article and its manufacturing method
DE102013015934A1 (en) 2013-09-18 2015-03-19 Friedrich-Schiller-Universität Jena Rare earth doped aluminosilicate glasses, especially for use as active lasant material in high performance bulk lasers
JP2016108179A (en) * 2014-12-05 2016-06-20 京セラメディカル株式会社 Glass ceramic
JP2016108178A (en) * 2014-12-05 2016-06-20 京セラメディカル株式会社 Glass block

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