JPH04114975A - Light-weight high-strength pottery and production thereof - Google Patents
Light-weight high-strength pottery and production thereofInfo
- Publication number
- JPH04114975A JPH04114975A JP23242390A JP23242390A JPH04114975A JP H04114975 A JPH04114975 A JP H04114975A JP 23242390 A JP23242390 A JP 23242390A JP 23242390 A JP23242390 A JP 23242390A JP H04114975 A JPH04114975 A JP H04114975A
- Authority
- JP
- Japan
- Prior art keywords
- less
- pottery
- borosilicate glass
- specific gravity
- ceramics
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000005388 borosilicate glass Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 3
- 150000001340 alkali metals Chemical group 0.000 claims abstract description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 3
- 150000001342 alkaline earth metals Chemical group 0.000 claims abstract description 3
- 239000000919 ceramic Substances 0.000 claims description 22
- 238000010304 firing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241000975357 Salangichthys microdon Species 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は軽量・高強度陶磁器とその製造方法、特に特定
の硼珪酸微小中空球を用いた軽量・高強度陶磁器とその
製造方法に係るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lightweight, high-strength ceramic and a method for manufacturing the same, particularly a lightweight, high-strength ceramic using specific borosilicate micro hollow spheres and a method for manufacturing the same. It is.
［従来の技術］
陶磁器は食卓用、土木建築用、衛生用、装飾用、理化学
用、電気機器用、自動車用、工業用等広範囲に用いられ
ている。[Prior Art] Ceramics are used in a wide range of applications, such as for dining tables, civil engineering and construction, hygiene, decoration, physics and chemistry, electrical equipment, automobiles, and industry.
従来、特開昭５５−１１６５１号、同６２−９８５９２
号、同６３−２０３５５５号には、シラスバルーンを用
いて陶器を軽量化することが述べられている。Previously, JP-A No. 55-11651, JP-A No. 62-98592
No. 63-203555 describes the use of shirasu balloons to reduce the weight of pottery.
［発明が解決しようとする課題］
しかしながら、本発明者の追試によると、これは何れも
通常の陶器と比べ、強度及び吸水性の著しい劣化がみら
れ、実用上問題となることが判明した。[Problems to be Solved by the Invention] However, according to the inventor's follow-up tests, it was found that both of these products showed a significant deterioration in strength and water absorption compared to ordinary ceramics, which caused problems in practical use.
これは、シラスバルーンは火山活動によって生成するシ
ラスを原料とする為、材質が不均一であり、バルーンの
壁厚に著しいバラツキができ、割れたり、著しく強度の
弱いものが混じっており、実際に、密閉、中空球として
作用するのが少ない為と考えられる。また、アルカリ分
・硼酸分がほとんど無い為に焼成時に非常に高粘度のガ
ラスとなり、粘着材としての作用をしない為と考えられ
る。This is because whitebait balloons are made from whitebait produced by volcanic activity, so the material is uneven, and the balloon wall thickness varies significantly, causing cracks and materials with extremely weak strength. This is thought to be due to the fact that it is less likely to act as a closed, hollow sphere. It is also thought that this is because it has almost no alkali or boric acid content, so it becomes a glass with very high viscosity when fired, and does not function as an adhesive.
本発明者は、陶磁器のもつ外観、感触を変えることなく
、低比重、高強度、低吸水率で且熱伝導性の低い陶磁器
を得ることを目的として種々研究、検討した結果、陶磁
器中に特定の硼珪酸の微小中空体を入れることにより、
前記目的を達成し得ることを見出した。The present inventor has conducted various research and examinations with the aim of obtaining ceramics with low specific gravity, high strength, low water absorption, and low thermal conductivity without changing the appearance and feel of ceramics. By inserting microscopic hollow bodies of borosilicate,
It has been found that the above object can be achieved.
かくして本発明は、陶磁器中に粒径１５０μｍ以下で焼
成時の粘度がｌｏｇ Ｖｉｓ（ｐｏｉｓｅ）＝ ２．５
〜３．５の硼珪酸ガラス質の微小中空球が多数存在する
比重１．９以下の軽量・高強度陶磁器とその製造方法を
提供するにある。Thus, the present invention provides ceramics with a particle size of 150 μm or less and a viscosity during firing of log Vis (poise) = 2.5.
To provide a lightweight, high-strength ceramic having a specific gravity of 1.9 or less, in which a large number of borosilicate glass micro hollow spheres of 3.5 to 3.5 are present, and a method for producing the same.
本発明において、焼成時における微小中空球の粘度が、
１ｏｇＶｉｓ（ｐｏｉｓｅ）＝２．５〜３．５程度にな
る組成を選択することにより微小中空体に内包するガス
を拡散させることなく軽量・高強度陶磁器が作成出来る
。In the present invention, the viscosity of the micro hollow spheres during firing is
By selecting a composition in which 1 og Vis (poise) = about 2.5 to 3.5, lightweight and high-strength ceramics can be produced without diffusing the gas contained in the micro hollow bodies.
本発明者の検討によると、かかる粘度を採用すると、こ
れを中空体にするときも、或はこれを陶磁器中に入れて
成形、焼成するときも、中空体の破壊が実質的になく、
所期の目的を達成することが出来る。According to the studies of the present inventors, when such a viscosity is adopted, there is virtually no destruction of the hollow body when it is made into a hollow body, or when it is placed in ceramics and molded and fired.
It is possible to achieve the intended purpose.
かかる硼珪酸ガラスとしては、重量％で以下の様な組成
が採用される。As such borosilicate glass, the following composition in weight percent is employed.
ＳｉＯ□ ６０〜８０ Ｂ２０． ２〜１５
Ｎａ２０２〜１５Ａ１２０３０〜３
に２００〜３ ３０． ０〜Ｊ
Ｒ２０２〜１８ Ｐ、０． ０〜３Ｒ２０２〜
１８ Ｐ２Ｏ５０〜３（但し、Ｒ２はＮａ、に等
のアルカリ金属）他の成分 ０〜３
Ｃａ０ ３〜１５
ＭｇＯ ３〜３
ＲＯ３〜１８
（但し、Ｒｌｊ Ｃａ、Ｍｇ等のアルカリ土類金属）本
発明で採用される硼珪酸ガラス質微小中空体の大きさは
、１５０μｍ以下、好ましくは６０〜７０７ｚｍである
ことが必要である。SiO□ 60-80 B20. 2-15
Na202~15A12030~3 200~3 30. 0~J R202~18 P, 0. 0~3R202~
18 P2O50-3 (However, R2 is an alkali metal such as Na, etc.) Other components 0-3 Ca0 3-15 MgO 3-3 RO3-18 (However, Rlj is an alkaline earth metal such as Ca, Mg, etc.) This invention The size of the borosilicate vitreous microhollow bodies employed in the method is required to be 150 μm or less, preferably 60 to 707 μm.
前記、中空体の大きさが１５０μｍを超える場合には、
製品としての軽量陶磁器の外観が粗くなる。When the size of the hollow body exceeds 150 μm,
The appearance of lightweight ceramics as a product becomes rough.
又、用いられる微小中空体の比重は１，０以下、好まし
くは０．４〜０．５であることが望ましい。比重が１０
を超えると軽量効果が阻害される。この微小中空体は、
陶磁器中に４５重量％以下、好ましくは１０〜４０重量
％入れられるが、４５重量％を超える場合には、軽量効
果は上るものの、陶磁器の素地と、微小中空体が最密充
填に近くなる為、微小な空孔が製品中に生じ、水漏れが
起きたり、吸水率や強度の劣化が見られる為、不適当で
ある。Further, it is desirable that the specific gravity of the micro hollow bodies used is 1.0 or less, preferably 0.4 to 0.5. Specific gravity is 10
Exceeding this will inhibit the lightweight effect. This micro hollow body is
It is contained in ceramics at 45% by weight or less, preferably 10 to 40% by weight, but if it exceeds 45% by weight, although the lightweight effect is improved, the ceramic matrix and micro hollow bodies become close to the closest packing. This is unsuitable because minute pores are created in the product, causing water leakage and deterioration of water absorption and strength.
本発明が適用される陶磁器の原料としては、特に制限は
なく、例えば粘土類、陶石、長石、珪石、蝋石等を適宜
一種或は二種以上を選択混合して用い得る。The raw materials for ceramics to which the present invention is applied are not particularly limited, and for example, clays, pottery stones, feldspars, silica stones, rouseki, etc. may be used alone or in a selective mixture of two or more.
実際、これら陶磁器原料と、微小中空体を混合するには
、陶磁器原料等の配合土に直ちに微小中空体を所定量混
合することも出来るが、こうすると莫大なシェアリング
応力がかかり微小中空体が破壊される。この為、配合土
を乾燥後、粉砕し、篩にて異物を取り除き、これに微小
中空体を所定量混合し、乾式混合し、然る後に練れる程
度進水を添加して混練するのが好ましい。然る後、１１
００〜１３００℃に１５〜４０時間熱処理される。In fact, in order to mix these ceramic raw materials and micro hollow bodies, it is possible to immediately mix a predetermined amount of micro hollow bodies into the mixed soil of ceramic raw materials, etc., but this will cause an enormous shearing stress and the micro hollow bodies will be mixed. Destroyed. For this reason, after drying the mixed soil, pulverize it, remove foreign matter with a sieve, mix a predetermined amount of micro hollow bodies with it, dry mix it, and then add launch water to the extent that it can be kneaded and knead it. preferable. After that, 11
Heat treated at 00-1300°C for 15-40 hours.
［実施例］
市販の配合土を乾燥後粉砕し、３２メツシユの篩にて異
物を取り除き、次いで１２０μｍ以下の下記組成を有す
る高強度ガラスバルーン（平均比重０．３９ 、ガラス
軟化点７００℃、耐圧強度２００ｋｇ／ａｍ２）をＩＯ
重量％乾式混合した。（数値は何れも重量％）
ＳｉＯ□ ７０゜５ Ａ１２０３０．７７Ｎａ
２０５．２ Ｂ２０３７．５に、０ ０．５
Ｆｅ２０３０．０２Ｋｉ２０ ０．８９
Ｐ２Ｏ，１，５７ＣａＯ１１，５ＳＯａ
Ｏ，２３ＺｎＯ１，０６
１ｏｇ Ｖｉｓ（ｐｏｉｓｅ）＝２．９ （１２００°
Ｃ）次に水を１０重量％加え、よく混合した。水分で丸
く固型化した粘土を２３８０μの篩を通した後密封容器
中で２４時間養生した。[Example] Commercially available mixed soil was dried and crushed, foreign matter was removed using a 32-mesh sieve, and a high-strength glass balloon of 120 μm or less and having the following composition (average specific gravity 0.39, glass softening point 700°C, pressure resistance Strength 200kg/am2)
Weight% dry mixed. (All values are weight%) SiO□ 70°5 A12030.77Na
205.2 B2037.5, 0 0.5
Fe2030.02Ki20 0.89
P2O,1,57CaO11,5SOa
O,23ZnO1,06 1og Vis(poise)=2.9 (1200°
C) Next, 10% by weight of water was added and mixed well. The clay, which had become round and solidified due to moisture, was passed through a 2380μ sieve and then cured in a sealed container for 24 hours.
次にこれを動力ロクロに入れ、直径１３ｃｍ、内圧５ｍ
ｍの皿を成形した。Next, put this in a power potter's wheel, with a diameter of 13 cm and an internal pressure of 5 m.
m plates were molded.
天日乾燥後、１２１０℃で２０時間焼成して製品とした
。得られた製品の比重は １５、吸水率は４％、曲げ強
度は：３８０ｋｇ／ｃｍ”であった。After drying in the sun, the product was baked at 1210°C for 20 hours. The resulting product had a specific gravity of 15, a water absorption rate of 4%, and a bending strength of 380 kg/cm''.
比較の為、高強度ガラスバルーンを除いた配合土のみで
皿を成形した。得られた製品の比重は２．０、吸水率は
９％、曲げ強度は３６０ｋｇ／ｃｍ”であった。For comparison, a plate was formed using only the mixed soil without the high-strength glass balloon. The resulting product had a specific gravity of 2.0, a water absorption rate of 9%, and a bending strength of 360 kg/cm''.
もう一つの比較の為、シラスバルーンをｌ０ｗｔ％混合
して皿を成形した。得られた製品の比重は１７、吸水率
は１１％、曲げ強度は２８０ｋｇ／ｃｍ２であった。For another comparison, a plate was formed by mixing 10 wt % of whitebait balloons. The resulting product had a specific gravity of 17, a water absorption rate of 11%, and a bending strength of 280 kg/cm2.
Claims (1)
度がｌｏｇＶｉｓ（ｐｏｉｓｅ）＝２．５〜３．５の硼
珪酸ガラス質微小中空体が多数存在する比重１．９以下
の軽量・高強度陶磁器。 ２、陶磁器中に平均比重が１以下の硼珪酸ガラス質の微
小中空体を４５重量％以下含有する生地を成形・熱処理
することにより作られた陶磁器。 ３、硼珪酸ガラス質の微小中空体が重量％で下記組成を
有する請求項（１）又は（２）の陶磁器。 ＳｉＯ＿２６０〜８０Ｂ＿２Ｏ＿３２〜１５Ｎａ＿２Ｏ
２〜１５Ａｌ＿２Ｏ＿３０〜３ Ｋ＿２Ｏ０〜３ＳＯ＿３０〜１ Ｒ＿２Ｏ２〜１８Ｐ＿２Ｏ＿５０〜３ Ｒ＿２Ｏ２〜１８Ｐ＿２Ｏ＿５０〜３ （但し、Ｒ＿２はＮａ、Ｋ等のアルカリ金属）他の成分
０〜３ ＣａＯ３〜１５ ＭｇＯ３〜３ ＲＯ３〜１８ （但し、ＲはＣａ、Ｍｇ等のアルカリ土類金属）４、陶
磁器原料中に粒径１５０μｍ以下で焼成時における粘度
がｌｏｇＶｉｓ（ｐｏｉｓｅ）＝２．５〜３．５の硼珪
酸ガラス質微小中空体を４５重量％以下含有せしめ、成
形、熱処理することを特徴とする軽量・高強度陶磁器の
製造方法。[Scope of Claims] 1. A specific gravity of 1.9 or less in which a large number of borosilicate glass micro hollow bodies with a particle size of 150 μm or less and a viscosity during firing of logVis (poise) = 2.5 to 3.5 are present in the ceramics. Lightweight and high strength ceramics. 2. Ceramics made by molding and heat-treating a fabric containing 45% by weight or less of borosilicate glass micro hollow bodies with an average specific gravity of 1 or less. 3. The ceramic according to claim 1 or 2, wherein the borosilicate glass micro hollow bodies have the following composition in weight percent: SiO_260~80B_2O_32~15Na_2O
2-15Al_2O_30-3 K_2O0-3SO_30-1 R_2O2-18P_2O_50-3 R_2O2-18P_2O_50-3 (However, R_2 is an alkali metal such as Na, K, etc.) Other components 0-3 CaO3-15 MgO3-3 RO3-18 (However, , R is an alkaline earth metal such as Ca, Mg, etc.) 4. Borosilicate glass micro hollow bodies with a particle size of 150 μm or less and a viscosity during firing of logVis (poise) = 2.5 to 3.5 are added to the ceramic raw material. A method for manufacturing lightweight, high-strength ceramics, characterized by containing 45% by weight or less, molding, and heat treating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23242390A JPH04114975A (en) | 1990-09-04 | 1990-09-04 | Light-weight high-strength pottery and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23242390A JPH04114975A (en) | 1990-09-04 | 1990-09-04 | Light-weight high-strength pottery and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04114975A true JPH04114975A (en) | 1992-04-15 |
Family
ID=16939034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23242390A Pending JPH04114975A (en) | 1990-09-04 | 1990-09-04 | Light-weight high-strength pottery and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04114975A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027569A1 (en) * | 1995-03-08 | 1996-09-12 | Illy, Francesco | Process for producing a ceramic material |
| FR2779425A1 (en) * | 1998-06-05 | 1999-12-10 | Didier Frot | Refractory powder composition e.g. for wax foundry, for dental applications, for silversmith's trade |
| US6251814B1 (en) * | 1999-07-14 | 2001-06-26 | Tadashi Kawai | Light-weight pottery article |
| FR2889184A1 (en) * | 2005-07-29 | 2007-02-02 | Saint Gobain Ct Recherches | PROCESS FOR THE PREPARATION OF A POROUS STRUCTURE USING POROGENIC SILICA AGENTS |
| FR2956660A1 (en) * | 2010-02-25 | 2011-08-26 | Pillivuyt | COMPOSITION FORMING A CERAMIC PASTE AND CERAMIC PRODUCT MADE ON THE BASIS OF THIS PASTE |
| IT201800009589A1 (en) * | 2018-10-18 | 2020-04-18 | Biomod Srl | ABRASIVE BODY FOR THE TREATMENT OF AGING FABRICS, MIXTURE FOR THE MAKING OF SAID BODY AND METHOD OF PRODUCTION OF SAID BODY |
| CN114507066A (en) * | 2022-02-24 | 2022-05-17 | 新化县正能精细陶瓷有限公司 | Ceramic base material for aromatherapy machine |
-
1990
- 1990-09-04 JP JP23242390A patent/JPH04114975A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027569A1 (en) * | 1995-03-08 | 1996-09-12 | Illy, Francesco | Process for producing a ceramic material |
| FR2779425A1 (en) * | 1998-06-05 | 1999-12-10 | Didier Frot | Refractory powder composition e.g. for wax foundry, for dental applications, for silversmith's trade |
| US6251814B1 (en) * | 1999-07-14 | 2001-06-26 | Tadashi Kawai | Light-weight pottery article |
| FR2889184A1 (en) * | 2005-07-29 | 2007-02-02 | Saint Gobain Ct Recherches | PROCESS FOR THE PREPARATION OF A POROUS STRUCTURE USING POROGENIC SILICA AGENTS |
| WO2007012777A3 (en) * | 2005-07-29 | 2007-09-13 | Saint Gobain Ct Recherches | Method for preparing a porous structure using silica-based pore-forming agents |
| FR2956660A1 (en) * | 2010-02-25 | 2011-08-26 | Pillivuyt | COMPOSITION FORMING A CERAMIC PASTE AND CERAMIC PRODUCT MADE ON THE BASIS OF THIS PASTE |
| EP2361896A1 (en) | 2010-02-25 | 2011-08-31 | Pillivuyt | Ceramic composition and ceramic product manufactured using said composition |
| IT201800009589A1 (en) * | 2018-10-18 | 2020-04-18 | Biomod Srl | ABRASIVE BODY FOR THE TREATMENT OF AGING FABRICS, MIXTURE FOR THE MAKING OF SAID BODY AND METHOD OF PRODUCTION OF SAID BODY |
| CN114507066A (en) * | 2022-02-24 | 2022-05-17 | 新化县正能精细陶瓷有限公司 | Ceramic base material for aromatherapy machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102126828B (en) | Lead-less cadmium-less low-temperature fusion cake and tourmaline-cordierite health care ceramic material and preparation method thereof | |
| US6919289B1 (en) | Methods and compositions for low thermal expansion ceramic | |
| JPH04114975A (en) | Light-weight high-strength pottery and production thereof | |
| CN107266024A (en) | A kind of antibacterial wearable environment protection ceramic tile and preparation method thereof | |
| DE19702254A1 (en) | Highly porous moulding especially light construction block | |
| DE102007036812A1 (en) | Porous material, process for its preparation and use | |
| KR101812111B1 (en) | Eco-friendly building materials using perlite and the manufacturing method thereof | |
| DE2853333C2 (en) | Process for the production of a mineral foam | |
| JP4448565B2 (en) | Porous lightweight ceramic product and manufacturing method thereof | |
| DE1944523C3 (en) | Process for the production of porous foam glass of uniform cell structure with a density of 0.05 to 0.4 g / cm 'and with high chemical resistance by heating a mixture containing water glass, metal oxides and optionally blowing agents | |
| SU1551671A1 (en) | Composition for basic layer of decorative-facing material | |
| JPS63252932A (en) | Production of foamed glass board | |
| KR101229107B1 (en) | Sandwich Panel using a neutralized industrial by-product and expansive stone | |
| SU1629278A1 (en) | Raw mixture for producing heat insulating material | |
| DE3503161C2 (en) | ||
| SU1629277A1 (en) | Raw mixture for producing heat insulating material | |
| RU2480431C1 (en) | Ceramic mixture for making facing tiles | |
| JPH11322469A (en) | Production of porous tourmaline ceramics | |
| SU1114665A1 (en) | Composition for making heat insulating material | |
| KR101083080B1 (en) | Nonflammable board manufacturing method using expandable ceramics and nonflammable board manufactured by this | |
| DE2638707A1 (en) | LIGHT PARTICLE-SHAPED UNIT AND PROCESS FOR ITS MANUFACTURING | |
| RU2018497C1 (en) | Heat-insulating material mixture | |
| JP4448564B2 (en) | Porous ceramic product and manufacturing method thereof | |
| JPH1025171A (en) | Ceramic composite plate having high strength | |
| SU992468A1 (en) | Raw mix for making heat- and sound-insulated material |