JPH0226865A - Production of heat-resistant stoneware - Google Patents
Production of heat-resistant stonewareInfo
- Publication number
- JPH0226865A JPH0226865A JP63177530A JP17753088A JPH0226865A JP H0226865 A JPH0226865 A JP H0226865A JP 63177530 A JP63177530 A JP 63177530A JP 17753088 A JP17753088 A JP 17753088A JP H0226865 A JPH0226865 A JP H0226865A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- petalite
- weight
- temp
- heat
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910052572 stoneware Inorganic materials 0.000 title abstract 3
- 239000002994 raw material Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- HEHRHMRHPUNLIR-UHFFFAOYSA-N aluminum;hydroxy-[hydroxy(oxo)silyl]oxy-oxosilane;lithium Chemical compound [Li].[Al].O[Si](=O)O[Si](O)=O.O[Si](=O)O[Si](O)=O HEHRHMRHPUNLIR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052670 petalite Inorganic materials 0.000 claims abstract description 14
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 10
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000035939 shock Effects 0.000 claims abstract description 9
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000454 talc Substances 0.000 claims abstract description 5
- 229910052623 talc Inorganic materials 0.000 claims abstract description 5
- 235000019738 Limestone Nutrition 0.000 claims abstract description 4
- 239000006028 limestone Substances 0.000 claims abstract description 4
- 229910052851 sillimanite Inorganic materials 0.000 claims description 15
- 239000004927 clay Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000010791 quenching Methods 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 238000001354 calcination Methods 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 description 6
- 238000005056 compaction Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010433 feldspar Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- 229910052849 andalusite Inorganic materials 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- -1 spodgemene Chemical compound 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、吸水率が殆ど零であって、しかも、４００℃
以上の急冷衝撃に耐える耐冷熱性が高い食器類を容易に
量産できる耐熱垢器の製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention has a water absorption rate of almost zero and a water absorption rate of 400°C.
The present invention relates to a method for manufacturing heat-resistant ware that can easily mass-produce tableware that has high cold and heat resistance and can withstand rapid cooling shock.
（従来の技術）
オーブン用食器類のような加熱、冷却が繰り返し行われ
る陶磁器類は従来より種々知られているが、従来のもの
は耐冷熱性を良くするために焼締りのないものであって
耐冷熱性が良くても素地体中に気孔があるため熱伝導性
に劣り、保温には適していても加熱効率が悪い。しかも
、このような素地体は加熱中の食品が焦げたときに素地
体中に炭化物が浸透して汚れが目立つのみならず、熱膨
張率の異なる素地体と炭化物で繰返される膨張と収縮に
より素地体を破壊することになる。また、このような焼
締まりのない陶磁器類は一般に熱膨張率が低いのでこれ
に適合する良い釉薬はなく、そのため施釉品は繰返され
る加熱と急冷により釉薬に貫入が入って外観を悪くする
のみならず炭化物が貫入をさらに押し広げ、ついにはそ
の貫入を始点として素地体を破壊するに至る。これに対
して、耐熱衝撃性が高い陶磁器素地組成としては、特開
昭６２−１４３８５５号公報に記載されているように、
けい酸カルシウムに、ペタライト、スポジェメン、カイ
アナイト、シリマナイト、アンダリュサイト、α−アル
ミナ、透輝石、ムライト、７ノーサイト、ステアタイト
およびフォルステライトの少なくとも１種以上を配合し
たけい酸カルシウム系成形体がある。(Prior art) Various types of ceramics, such as oven tableware, that are repeatedly heated and cooled are known, but conventional ones are not hardened to improve cold and heat resistance. Even if it has good cold and heat resistance, it has poor thermal conductivity due to the presence of pores in the base material, and although it is suitable for keeping warm, it has poor heating efficiency. Moreover, when the food being heated burns, carbide penetrates into the base body and stains become noticeable. In addition, the base body is damaged due to the repeated expansion and contraction of the base body and the carbide, which have different coefficients of thermal expansion. It will destroy your body. In addition, since such unfired ceramics generally have a low coefficient of thermal expansion, there are no good glazes that can match them, and for glazed items, repeated heating and rapid cooling may cause penetration into the glaze, which will only worsen the appearance. The carbide further expands the intrusion and eventually destroys the base body using the intrusion as a starting point. On the other hand, ceramic base compositions with high thermal shock resistance include, as described in JP-A-62-143855,
A calcium silicate-based molded body containing at least one of petalite, spodgemene, kyanite, sillimanite, andalusite, α-alumina, diopside, mullite, 7-northite, steatite, and forsterite is blended with calcium silicate. be.
（発明が解決しようとする課題）
ところが、けい酸カルシウムは、水に対する溶解度が比
較的高く、水に溶解したけい酸カルシウムは粘土の解膠
性を悪くして素地体の成形性を阻害する欠点があり、坏
土の成形性が良好なうえに焼成体は良く焼締まり、吸水
率が殆ど零であって、しかも、４００℃以上の急冷衝撃
に耐える耐冷熱性がある陶磁器の開発が業界において強
く要望されている。(Problem to be Solved by the Invention) However, calcium silicate has a relatively high solubility in water, and calcium silicate dissolved in water has the disadvantage of impairing the peptizing properties of clay and inhibiting the formability of the base body. There is a strong desire in the industry to develop ceramics that have good clay moldability, good firing compaction, almost zero water absorption, and cold and heat resistance that can withstand rapid cooling shocks of 400℃ or more. It is requested.
（課題を解決するための手段）
本発明は前記のような要望に応えたもので、ペタライト
質原料と合成コーディエライト賞原料とシリマナイト質
原料と長石質原料とを総量で６５〜７５重量％としてこ
れに粘土質原料を配合した素地土を用い、１２００℃〜
１３００℃の焼成温度で吸水率が略零で４００℃以上の
急冷衝撃に耐えるように焼結することを特徴と焼結する
耐熱止器の製造法と、ペタライト質原料と合成コーディ
エライト質原料とシリマナイト質原料とを総量で６５〜
７５重量％としてこれに粘土質原料を石灰石、タルク、
炭酸バリウムのうち１種以上１〜３重量％とともに配合
した素地土を用い、１２００℃〜１３００℃の焼成温度
で吸水率が略零で４００℃以上の急冷衝撃に耐えるよう
に焼結することを特徴とする耐熱止器の製造法とよりな
るものである。(Means for Solving the Problems) The present invention has been made in response to the above-mentioned demands, and consists of a petalite raw material, a synthetic cordierite prize raw material, a sillimanite raw material, and a feldspar raw material in a total amount of 65 to 75% by weight. Using base soil mixed with clay raw materials, the temperature is 1200℃~
A method for producing a heat-resistant stopper characterized by sintering at a firing temperature of 1300°C to have almost zero water absorption and withstand quenching shock of 400°C or higher, a petalite raw material and a synthetic cordierite raw material. and sillimanite raw material in a total amount of 65~
Add clay raw materials such as limestone, talc, and 75% by weight to this.
Using a base material blended with 1 to 3% by weight of one or more types of barium carbonate, sintering is performed at a firing temperature of 1200°C to 1300°C so that water absorption is approximately zero and it can withstand rapid cooling shocks of 400°C or higher. This method consists of a manufacturing method for a heat-resistant stopper.
本発明で用いる原料配合には、正の低熱膨張率、または
負の低熱膨張率を有するペタライト結晶を生成するペタ
ライト質原料と、これまた低熱膨張率のコープイライト
結晶を生成する合成コープイライト質原料と、堅硬緻密
で残存収縮が少ないシリマナイト質原料および長石質原
料を総量で６５〜７５重量％とじ、これに通常の陶磁器
のように粘土質原料を配合すのものであるが、ペタライ
ト質原料と合成コープイライト質原料とシリマナイト質
原料とはいずれも少なくとも５重量％以上好ましくは１
０〜４０重量％、長石質原料が５〜１５重量％配合され
、粘土質原料は２５〜３５重量％配合されたものとして
お（。その理由は、ペタライト質原料は少なすぎると、
熱膨張率が大きくなるうえシリマナイト質原料との共融
関係が悪くなり、また、焼締まりの範囲も狭くなるから
であり、反対に多すぎると、曲げ強度が弱くなるうえ吸
水性が生ずるからである。一方、合成コープイライト質
原料は少なすぎると、焼締まりの範囲も狭くなるうえシ
リマナイト質原料との共融関係が悪くなり、反対に多す
ぎると、割れ易くなるうえに焼成範囲も狭くなり、成形
も困難になる。また、シリマナイト質原料は少なすぎる
と、曲げ強度が弱くなるうえ焼成範囲も狭くなり、反対
に多すぎると、焼締まりが悪くまた熱膨張率が大きくな
る。さらに、長石質原料は少なすぎると、焼締まりが悪
くなり、反対に多すぎると、熱膨張率が大きくなって割
れ易くなるからである。The raw material composition used in the present invention includes a petalite raw material that produces petalite crystals with a low positive coefficient of thermal expansion or a low negative coefficient of thermal expansion, and a synthetic coppillite raw material that produces copoilite crystals that also have a low coefficient of thermal expansion. The total amount of sillimanite raw materials and feldspathic raw materials that are hard, dense, and have little residual shrinkage is 65 to 75% by weight, and clay raw materials are blended with this like normal ceramics, but petalite raw materials and Both the synthetic copierite raw material and the sillimanite raw material are at least 5% by weight or more, preferably 1
0 to 40% by weight, 5 to 15% by weight of feldspathic raw materials, and 25 to 35% by weight of clayey raw materials (The reason is that if the petalite raw materials are too small,
This is because the coefficient of thermal expansion increases, the eutectic relationship with the sillimanite raw material deteriorates, and the range of sintering compaction becomes narrower. Conversely, if it is too large, the bending strength becomes weak and water absorption occurs. be. On the other hand, if the amount of synthetic co-opillite material is too small, the range of sintering compaction will be narrowed and the eutectic relationship with the sillimanite material will be poor; It also becomes difficult. Furthermore, if the amount of the sillimanite raw material is too small, the bending strength will be weakened and the firing range will also be narrowed, while if it is too large, the firing compaction will be poor and the coefficient of thermal expansion will be high. Furthermore, if the amount of feldspathic raw material is too small, the sintering compaction will be poor, whereas if it is too large, the coefficient of thermal expansion will become large and it will be easy to break.
（実施例）
実施例１
ペタライト原料１５重量％、合成コーディエライト原料
２０重量％、シリマナイト原料３０重量％、長石原料５
重量％、粘土原料３０重量％を配合゛して湿式細磨した
泥漿をフィルタープレスで脱水し、直径１５．５ ｃｍ
のグラタン皿を成形、乾燥後にゼーゲル錐でＳＫ８の大
変で酸化雰囲気で焼成した。このようにして得られたグ
ラタン皿を４１６℃に熱し、これを１６℃の水中に投入
したが割れなく、ツクシン浸みのない程度にまで良く焼
締まっていた。また、この製品と同じ棒状の試験体の一
点荷重の曲げ強度は７００ｋｇ／ｃ＋Ｊであり、室温〜
６００℃の熱膨張係数は３．０５ｘｌＯ’／’ｃであっ
た。(Example) Example 1 Petalite raw material 15% by weight, synthetic cordierite raw material 20% by weight, sillimanite raw material 30% by weight, feldspar raw material 5
% by weight and 30% by weight of clay raw materials were wet-polished and dehydrated using a filter press to form a slurry with a diameter of 15.5 cm.
After molding and drying the gratin dish, it was fired in an oxidizing atmosphere using a Seegel kettle in an SK8 oven. The thus obtained gratin dish was heated to 416° C. and placed in water at 16° C., but it did not crack and was well baked to the extent that it did not seep into the dish. In addition, the bending strength of the same rod-shaped test specimen as this product under single point load is 700 kg/c+J, and from room temperature to
The coefficient of thermal expansion at 600°C was 3.05xlO'/'c.
実施例２
ペタライト原料１７重量％、合成コーディエライト原料
２０重量％、シリマナイト原料２６重量％、長石原料７
重量％、粘土原料３０重量％に２重量％のタルクを配合
してこれを湿式細磨した泥漿をフィルタープレスで脱水
し、直径１５．５ ｃｓのグラタン皿を成形、乾燥後に
ゼーゲル錐でＳＫ８の人皮で酸化雰囲気で焼成した。こ
のようにして得られたグラタン皿を４１６℃に熱し、こ
れを１６℃の水中に投入したが割れなく、ツクシン浸み
のない程度にまで良く焼締まっていた。また、この製品
と同じ棒状の試験体の一点荷重の曲げ強度は９５０ｋｇ
／−で、室温〜６００℃の熱膨張係数は２．４１Ｘ１０
’／ｌであった。Example 2 Petalite raw material 17% by weight, synthetic cordierite raw material 20% by weight, sillimanite raw material 26% by weight, feldspar raw material 7
% by weight, 30% by weight of clay raw materials and 2% by weight of talc were wet-polished, the slurry was dehydrated using a filter press, molded into a gratin dish with a diameter of 15.5 cs, and after drying, it was molded into an SK8 plate using a Seegel drill. It was fired using human skin in an oxidizing atmosphere. The thus obtained gratin dish was heated to 416° C. and placed in water at 16° C., but it did not crack and was well baked to the extent that it did not seep into the dish. In addition, the bending strength of the same rod-shaped test specimen as this product under single point load is 950 kg.
/-, the coefficient of thermal expansion from room temperature to 600℃ is 2.41X10
'/l.
（発明の効果）
本発明は前記説明から明らかなように、正の低熱膨張率
または負の低熱膨張率を有するペタライト結晶を生成す
るうえにシリマナイト質原料との共融関係がよいベタラ
イト質原料と、これまた低熱膨張率のコーディエライト
結晶を生成するうえにシリマナイト質原料との共融関係
がよい合成コーディエライト質原料と、堅硬緻密で残存
収縮がすくないシリマナイト質原料および長石質原料と
を総量で６５〜７５重量％としてこれに通常の陶磁器の
ように粘土質原料が配合されているから、生坏土の成形
性が良好なうえに１２００℃〜１２７０℃という比較的
低い焼成温度での焼成でよく、また、本発明法により得
られた焼成体はツクシン漫みのない程度にまで良く焼締
まって吸水率が略零となるうえに耐熱性が高く、しかも
、４００℃以上の急冷衝撃によく耐える耐冷熱性の良い
ものとなる。しかも、第１の発明では長石質原料の配合
により焼成の際の焼締まり温度範囲が狭くないが、特に
、第２の発明では石灰石、タルク、炭酸バリウムのうち
の一種以上の原料を１〜３部配合することによって焼締
まり温度範囲が一層拡大されるという利点があり、耐冷
熱性に優れた厨房用のほか各種の耐熱止器製品を容易に
量産できる耐熱止器の製造法として業界の発展に寄与す
るところ極めて大なるものがある。(Effects of the Invention) As is clear from the above description, the present invention produces petalite crystals having a low positive coefficient of thermal expansion or a low negative coefficient of thermal expansion, and also uses a betalite raw material that has a good eutectic relationship with the sillimanite raw material. , also a synthetic cordierite raw material that produces cordierite crystals with a low coefficient of thermal expansion and has a good eutectic relationship with the sillimanite raw material, and a sillimanite raw material and a feldspathic raw material that are hard, dense, and have little residual shrinkage. Clay raw materials are added to this in a total amount of 65 to 75% by weight, just like ordinary ceramics, so the moldability of the raw clay is good and it can be fired at a relatively low firing temperature of 1200℃ to 1270℃. In addition, the fired body obtained by the method of the present invention is well-sintered to the extent that there is no stiffness, and the water absorption rate is approximately zero, and it has high heat resistance, and is also resistant to quenching shocks of 400°C or higher. It has good cold and heat resistance. Moreover, in the first invention, the compaction temperature range during firing is not narrow due to the combination of feldspathic raw materials, but in particular, in the second invention, one or more raw materials of limestone, talc, and barium carbonate are mixed in 1 to 3 It has the advantage that the baking temperature range can be further expanded by combining the parts, and the industry has developed as a manufacturing method for heat-resistant stoppers that can easily mass-produce various types of heat-resistant stoppers in addition to those for kitchen use that have excellent cold and heat resistance. There is something extremely important to contribute.
手続補正書（自発）
１、事件の表示
昭和６３年特許願第１７７５３０号
２、発明の名称 耐熱輛器の製造法
３、補正をする者
事件との関係 特許出願人
住所 三重県四日市市南いかるが町６番１７号６、補正
の内容
（１）、明細書の第８頁第４行〜第５行目にｒ１２７０
℃」とあるを１．ｒ １３００℃」と補正する。Procedural amendment (voluntary) 1. Indication of the case Patent Application No. 177530 filed in 1989 2. Name of the invention Method for manufacturing heat-resistant construction equipment 3. Person making the amendment Relationship to the case Patent applicant address Minami Ikaruga-cho, Yokkaichi City, Mie Prefecture No. 6, No. 17, No. 6, Contents of amendment (1), r1270 on page 8, lines 4 to 5 of the specification
1. r 1300℃”.
（２）、同第８頁第１３行〜第１５行目に「１〜３部配
合する・・・・利点があり、」とあるを、次のとおり補
正する。(2), on page 8, lines 13 to 15, the statement ``Blending 1 to 3 parts...there is an advantage'' should be corrected as follows.
「１〜３重量配合することによって熱膨張率はさらに小
さくなるという利点があり、」以上
４、代理人``There is an advantage that the coefficient of thermal expansion is further reduced by blending 1 to 3 weights.'' Above 4, Agent
Claims (1)
シリマナイト質原料と長石質原料とを総量で６５〜７５
重量％としてこれに粘土質原料を配合した素地土を用い
、１２００℃〜１３００℃の焼成温度で吸水率が略零で
且つ４００℃以上の急冷衝撃に耐えるように焼結するこ
とを特徴とする耐熱垢器の製造法。 ２、ペタライト質原料と合成コーディエライト質原料と
シリマナイト質原料とを総量で６５〜７５重量％として
これに粘土質原料を石灰石、タルク、炭酸バリウムのう
ち１種以上１〜３重量％とともに配合した素地土を用い
、１２００℃〜１３００℃の焼成温度で吸水率が略零で
４００℃以上の急冷衝撃に耐えるように焼結することを
特徴とする耐熱垢器の製造法。[Claims] 1. The total amount of petalite raw material, synthetic cordierite raw material, sillimanite raw material, and feldspathic raw material is 65 to 75%.
It is characterized by using a base soil in which a clay raw material is blended with this as a weight percent, and sintering it at a firing temperature of 1200°C to 1300°C so that the water absorption rate is approximately zero and it can withstand rapid cooling shock of 400°C or more. Manufacturing method for heat-resistant ware. 2. Petalite raw material and synthetic cordierite raw material and sillimanite raw material in a total amount of 65 to 75% by weight, and clay raw material is blended with 1 to 3% by weight of one or more of limestone, talc, and barium carbonate. 1. A method for producing heat-resistant clay pottery, which is characterized in that it is sintered at a firing temperature of 1200° C. to 1300° C. to have a water absorption of approximately zero and to withstand a rapid cooling shock of 400° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63177530A JPH0226865A (en) | 1988-07-16 | 1988-07-16 | Production of heat-resistant stoneware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63177530A JPH0226865A (en) | 1988-07-16 | 1988-07-16 | Production of heat-resistant stoneware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0226865A true JPH0226865A (en) | 1990-01-29 |
| JPH0582345B2 JPH0582345B2 (en) | 1993-11-18 |
Family
ID=16032539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63177530A Granted JPH0226865A (en) | 1988-07-16 | 1988-07-16 | Production of heat-resistant stoneware |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013018694A (en) * | 2011-07-12 | 2013-01-31 | Nagasaki Prefecture | Heat resistant product and method of manufacturing the same |
-
1988
- 1988-07-16 JP JP63177530A patent/JPH0226865A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013018694A (en) * | 2011-07-12 | 2013-01-31 | Nagasaki Prefecture | Heat resistant product and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0582345B2 (en) | 1993-11-18 |
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