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JP2004057491A - Ceramic board for roast cooking and its production method - Google Patents

Ceramic board for roast cooking and its production method Download PDF

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Publication number
JP2004057491A
JP2004057491A JP2002220054A JP2002220054A JP2004057491A JP 2004057491 A JP2004057491 A JP 2004057491A JP 2002220054 A JP2002220054 A JP 2002220054A JP 2002220054 A JP2002220054 A JP 2002220054A JP 2004057491 A JP2004057491 A JP 2004057491A
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JP
Japan
Prior art keywords
pottery
cooking
plate
less
mass
Prior art date
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JP2002220054A
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Japanese (ja)
Inventor
Kazuo Takeuchi
竹内 一男
Masahiro Koseki
小関 雅裕
Taro Takemi
竹見 太郎
Yoshiko Seze
瀬々 佳子
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Inax Corp
Original Assignee
Inax Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceramic board for roast cooking in which smoke and smell are hard to come out and a delicious barbecue dish can be obtained and its production method. <P>SOLUTION: The ceramic board for roast cooking is manufactured with earthen pot soil comprising petalite. It is in a plate form having a plurality of protrusions 20a on the surface and consists of porous ceramics in which continuous open cells opening on the surface are formed in the inside. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は焼物調理用陶板及びその製造方法に関する。
【0002】
【従来の技術】
焼肉、焼野菜、焼魚等のバーベキュー料理を調理するためには一般的に鉄板、ステンレス板等の金属板や網が用いられる。金属板としては、単なる板状のもの、周縁に上方に突出する凸部を有する板状のもの、スリットが厚さ方向に貫設された板状のもの等が存在する。表面にフッ素加工を施した金属板も知られている。また、網は一般的には金属製のものであり、その他特開平8−33574号公報開示のセラミックス製のものも知られている。
【0003】
人が焼物調理を行おうとする場合、ガスコンロ、ホットプレート等の加熱装置上にこれら金属板や網が載置される。そして、加熱した金属板等の上面に生肉、生野菜、生魚等が載せられ、金属板等の熱によりこれらが焼肉等のバーベキュー料理に調理されることとなる。この際、周縁に上方に突出する凸部を有する板状の金属板では、例えば生肉から生じる余分な油等が加熱装置やテーブル等に落ちることを防止する。また、表面にフッ素加工を施した金属板では、上面にバーベキュー料理がこびり付くことを防止し、優れた清掃性を呈することができる。さらに、セラミックス製の網では、遠赤外線で焼物調理を行うことができるという効果も奏する。
【0004】
【発明が解決しようとする課題】
しかし、上記従来の金属板で焼物調理を行う場合には、生肉等から生じる余分な油等が金属板上にたまることから、バーベキュー料理がべと付きやすい。また、この場合、油の燃焼による煙の発生があり、室内の空気汚染及び家具や建物の内装及び人体や被服に臭い等を付着させることも多い。周縁に上方に突出する凸部を有する板状の金属板や表面にフッ素加工を施した金属板では、特にこの傾向が大きい。
【0005】
この点、スリットが厚さ方向に貫設された板状の金属板又は金属製の網やセラミックス製の網で焼物調理を行う場合には、そのような余分な油等を下方に積極的に落下させることができるため、バーベキュー料理のべと付きを防止することができる。このため、こうして得られるバーベキュー料理は適度な油等が残存しておいしいものとなる。特に、セラミックス製の網で焼物調理を行う場合には、遠赤外線で焼物調理が行われ、よりおいしいバーベキュー料理が得られる。
【0006】
しかしながら、この場合には、余分な油等がガスコンロ等の加熱装置に直接供給されて燃焼されることとなり、家庭や店の室内に煙や臭いが充満し、また残存してしまう。
【0007】
本発明は、上記従来の実情に鑑みてなされたものであって、煙や臭いを出しにくく、おいしいバーベキュー料理を得ることが可能な焼物調理用陶板と、この焼物調理用陶板の製造方法とを提供することを解決すべき課題としている。
【0008】
【課題を解決するための手段】
本発明の焼物調理用陶板は、上面に複数の凸部を有する板状をなし、内部には表面に開口する連続気泡が形成された多孔質セラミックスからなることを特徴とする。
【0009】
本発明の焼物調理用陶板で焼物調理を行う場合には、生肉等から生じる余分な油等を連続気泡によって内部に浸透させることができるため、バーベキュー料理のべと付きを防止することができる。このため、こうして得られるバーベキュー料理は適度な油等が残存しておいしいものとなる。
【0010】
特に、この焼物調理用陶板は多孔質セラミックスからなるため、遠赤外線で焼物調理を行うことができ、よりおいしいバーベキュー料理が得られる。また、この焼物調理用陶板は上面に複数の凸部を有していることから、生肉等が複数の凸部に支持された状態で調理されることとなる。この間、各凸部は、凸部以外の本体よりも突出していることから、本体の温度より低い温度に維持されており、本体の温度で生肉等を直接加熱することが少ない。また、各凸部間に空気が存在することから、その空気は本体と生肉等との間で外気を取り込みながら自然対流を生じることとなる。このため、生肉等は本体からの輻射熱により、いわゆる「強火の遠火」に近い形で食材の表面が過剰に焼けたり、焦げたりすることなく、内部までゆっくりと加熱されることとなり、やわらかく、よりおいしいバーベキュー料理が得られる。
【0011】
また、余分な油等は、焼物調理用陶板の内部に浸透してガスコンロ等の加熱装置に直接供給されないことから、燃焼され難く、煙や臭いを生じ難い。余分な油等が上面側に存在しても、各凸部間に存在する空気が外気を取り込みながら自然対流を生じることから、その油等に外気の酸素が供給されて不完全燃焼を生じ難いため、煙や臭いを生じ難い。
【0012】
なお、焼物調理の量によって余分な油等の量が比例的に増加すると考えられることから、1枚の焼物調理用陶板内の油等の量が飽和状態になれば、その焼物調理用陶板の空焼き又は交換を行うことが好ましい。また、油等の量が飽和した焼物調理用陶板は、煙や臭いを回収したり、燃焼させたりすることが可能な装置を有する場所において、加熱されることにより再生可能である。
【0013】
したがって、本発明の焼物調理用陶板によれば、煙や臭いを出しにくく、おいしいバーベキュー料理を得ることができる。
【0014】
本発明の焼物調理用陶板において、凸部は、半球状、円柱状、角柱状、円錐状、角錐状等であり得る。凸部が半球状であることが好ましい。こうであれば、凸部の表面積が小さいことから、焼物調理用陶板の清掃性が向上する。半球状の凸部は、平面視の直径が3〜20mm、本体からの高さが0.5〜20mm、本体における間隔が0.5〜20mmであることが好ましい。平面視の直径が3mm未満又は20mm超であれば、本体と生肉等との間に空気を存在させ難く、本発明の効果が得られ難い。本体からの高さが0.5mm未満では本体と生肉等との間に空気を存在させ難く、本体からの高さが20mmを超えれば本体と生肉等との間に空気が過剰に存在することとなり、いずれも本発明の効果が得られ難い。間隔が0.5mm未満又は20mm超であれば本体と生肉等との間に空気を存在させ難く、本発明の効果が得られ難い。
【0015】
発明者らの試験結果によれば、連続気泡による吸水率が20%以下であることが好ましい。吸水率が20%を超えれば、バーベキュー料理に適度な油等が残存しにくい。より好ましくは、連続気泡による吸水率が3〜10%である。吸水率がこの範囲内であれば、バーベキュー料理に適度な油等が残存する。
【0016】
本発明の焼物調理用陶板の製造方法は、ペタライトを含む土により、上面に複数の凸部を有する板状をなす成形体を得る成形工程と、内部には表面に開口する連続気泡が残存するように該成形体を焼成し、焼物調理用陶板を得る焼成工程とを備えていることを特徴とする。
【0017】
ペタライトを含む土からなる焼物調理用陶板は熱衝撃に強い。ペタライトを含む土としては、市販されている土鍋土等を採用することができる。発明者らの考察によれば、土は、Al60質量%以下、LiO5質量%以下、他のアルカリ酸化物20質量%以下、アルカリ土類酸化物20質量%以下、強熱減量15質量%以下及び残部SiOからなることが好ましい。組成がこの範囲内の土であれば、焼物調理に適した焼物調理用陶板を製造可能である。Al15〜35質量%、LiO3質量%以下、他のアルカリ酸化物10質量%以下、アルカリ土類酸化物10質量%以下、強熱減量3〜10質量%及び残部SiOからなることがより好ましい。組成がこの範囲内の土であれば、焼物調理に適した焼物調理用陶板をより確実に製造可能である。組成がこれらの範囲の土は、750〜1250°Cで焼成工程を行なうことが好ましい。1250°Cを超えて焼成工程を行うと、気孔率が小さくなり、吸水率が適当でなくなりやすい。他方、750°C未満で焼成工程を行うと、焼結が進行し難く、熱衝撃に対して脆弱になる。800〜1230°Cで焼成工程を行なうことがより好ましい。
【0018】
【発明の実施の形態】
以下、本発明を具体化した実施形態を図面を参照しつつ説明する。
【0019】
まず、表1に組成を示す市販の土鍋土を用意する。この土鍋土の鉱物組成は、石英(Quartz)、カオリン(Kaolin)、ムスコバイト(Muscovite)、ペタライト(Petalite)、ヘマタイト(Hematite)、アルバイト(Albite)、オーソクラス(Orthclase)及びコージェライト(Cordierite)である。
【0020】
【表1】

Figure 2004057491
【0021】
そして、図1に示すように、押出工程S1として、上記土鍋土を水分量22%程度の粘土に調製した後、この粘土を真空押出成形機に投入し、幅330mm、厚さ30mmの一次成形品を得る。次いで、スライス工程S2として、この一次成形品を厚み方向で2枚にスライスし、幅330mm、厚さ15mmの二次成形品を得る。この後、プレス工程S3として、上型に複数の凹部をもつ樹脂板が設けられたプレス機を用意し、二次成形品をこのプレス機内に設ける。そして、200kg/cmの加圧力で二次成形品を加圧し、図2に示すように、上面に複数の凸部10aを有する板状をなす成形体10を得る。押出工程S1、スライス工程S2及びプレス工程S3が成形工程である。
【0022】
この後、乾燥工程S4として、成形体10を3日間放置した後、80°Cに保持した乾燥炉内に24時間保持する。そして、乾燥した成形体10を以下の焼成工程S5に供する。
【0023】
試験品1の焼成工程S5では、酸化雰囲気下のガス炉内に成形体10を入れ、100°C/時間の昇温速度で1200°Cまで昇温した後、1200°Cで1時間保持し、この後自然放冷する。
【0024】
試験品2の焼成工程S5では、還元雰囲気下のガス炉内に成形体10を入れ、100°C/時間の昇温速度で1240°Cまで昇温した後、1240°Cで1時間保持し、この後自然放冷する。
【0025】
試験品3の焼成工程S5では、酸化雰囲気下のガス炉内に成形体10を入れ、100°C/時間の昇温速度で850〜1100°Cまで昇温した後、850〜1100°Cで1時間保持し、この後自然放冷する。
【0026】
こうして、図2及び図3に示すように、試験品1〜3の焼物調理用陶板20を得る。なお、焼物調理用陶板20の周縁に食材の転落を防止するための上方に突出する凸部を形成することも可能である。これらの焼物調理用陶板20は、上面に複数の凸部20aを有する板状をなし、内部には表面に開口する連続気泡が形成された多孔質セラミックスからなる。各凸部20aは直径7mm、高さ1.5mmの半球状のものであり、これらは凸部20a以外の本体20bに10mm毎に等間隔で配置されている。
【0027】
試験品1〜3の焼物調理用陶板20の吸水率(%)及び気孔率(%)を表2に示す。
【0028】
【表2】
Figure 2004057491
【0029】
ガスコンロ上に試験品1〜3の焼物調理用陶板20を載置し、焼物調理用陶板20が加熱された後、生肉を載せる。
【0030】
試験品1の焼物調理用陶板20を用いた場合には、生肉から生じる余分な油等を連続気泡によって内部に浸透させることができたため、焼肉のべと付きを防止することができた。これに対し、試験品2の焼物調理用陶板20を用いた場合には、余分な油等が浸透し難く、焼肉のべと付きを生じた。このため、試験品1の焼物調理用陶板20によれば、適度な油等が残存しておいしい焼肉が得られることがわかる。他方、試験品2の焼物調理用陶板20は調理を始めてまもなくに亀裂を生じた。
【0031】
また、試験品1、2の焼物調理用陶板20は多孔質セラミックスからなるため、遠赤外線で焼物調理を行うことができ、かなりおいしい焼肉が得られた。特に、試験品1の焼物調理用陶板20によれば、生肉が本体20bからの輻射熱により、いわゆる「強火の遠火」に近い形で食材の表面が過剰に焼けたり、焦げたりすることなく、内部までゆっくりと加熱されることとなり、やわらかく、よりおいしい焼肉が得られた。
【0032】
また、試験品1、2の焼物調理用陶板20を用いる場合には、余分な油等は、焼物調理用陶板20の内部に浸透してガスコンロに直接供給されないことから、燃焼され難く、煙や臭いを生じ難い。また、余分な油等が上面側に存在しても、各凸部20a間に存在する空気が外気を取り込みながら自然対流を生じることから、その油等に外気の酸素が供給されて不完全燃焼を生じ難いため、煙や臭いを生じ難い。生野菜、餅を調理した場合も同様であった。
【0033】
したがって、試験品1、2、特に試験品1の焼物調理用陶板20によれば、煙や臭いを出しにくく、おいしいバーベキュー料理を得ることができる。
【0034】
また、試験品1、2の焼物調理用陶板20の各凸部20aは半球状であるため、優れた清掃性を発揮することができる。さらに、試験品1、2の焼物調理用陶板20は、ペタライトを含む土鍋土から得られているため、熱衝撃に強い。
【図面の簡単な説明】
【図1】実施形態の製造方法を示す流れ図である。
【図2】実施形態に係る成形体及び焼物調理用陶板の斜視図である。
【図3】実施形態に係る焼物調理用陶板の断面図である。
【符号の説明】
10…成形体
10a…凸部
20…焼物調理用陶板
20a…凸部
S1、S2、S3…成形工程(S1…押出工程、S2…スライス工程、S3…プレス工程)
S4…乾燥工程
S5…焼成工程[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a porcelain plate for cooking pottery and a method for producing the same.
[0002]
[Prior art]
In order to cook barbecue dishes such as grilled meat, grilled vegetables, grilled fish and the like, a metal plate or net such as an iron plate or a stainless plate is generally used. Examples of the metal plate include a simple plate, a plate having a convex portion protruding upward at the periphery, and a plate having a slit penetrating in the thickness direction. There is also known a metal plate whose surface has been subjected to fluorine processing. Further, the net is generally made of metal, and a mesh made of ceramics disclosed in Japanese Patent Application Laid-Open No. 8-33574 is also known.
[0003]
When a person intends to cook pottery, these metal plates and nets are placed on a heating device such as a gas stove or a hot plate. Then, raw meat, raw vegetables, raw fish and the like are placed on the upper surface of the heated metal plate or the like, and these are cooked into barbecue dishes such as grilled meat by the heat of the metal plate or the like. At this time, a plate-shaped metal plate having a convex portion protruding upward at the periphery prevents, for example, excess oil or the like generated from raw meat from dropping onto a heating device, a table, or the like. In addition, with a metal plate whose surface has been subjected to fluorine processing, barbecue dishes can be prevented from sticking to the upper surface, and excellent cleaning properties can be exhibited. Further, the ceramic net also has the effect of making it possible to cook pottery with far infrared rays.
[0004]
[Problems to be solved by the invention]
However, when the above-mentioned conventional metal plate is used for cooking pottery, barbecue dishes are likely to be sticky because excess oil or the like generated from raw meat accumulates on the metal plate. Also, in this case, smoke is generated due to the burning of oil, which often causes air pollution in the room and odors on furniture, the interior of buildings, human bodies and clothes. This tendency is particularly large in a plate-shaped metal plate having a convex portion protruding upward at the peripheral edge or a metal plate whose surface has been subjected to fluorine processing.
[0005]
In this regard, when cooking with a plate-shaped metal plate or a metal net or a ceramic net having a slit penetrating in the thickness direction, such extra oil or the like is actively dropped downward. Since it can be dropped, stickiness of barbecue dishes can be prevented. For this reason, the barbecue food thus obtained becomes delicious with an appropriate amount of oil remaining. In particular, when cooking with a ceramic net, the cooking is performed with far-infrared rays, and a more delicious barbecue dish can be obtained.
[0006]
However, in this case, excess oil or the like is directly supplied to a heating device such as a gas stove and burned, so that the interior of a home or shop is filled with smoke or smell and remains.
[0007]
The present invention has been made in view of the above-described conventional circumstances, and is directed to a pottery plate for cooking pottery, which is less likely to emit smoke and smell and can obtain a delicious barbecue dish, and a method of manufacturing the pottery plate for cooking pottery. Providing is an issue to be solved.
[0008]
[Means for Solving the Problems]
The pottery plate for pottery cooking of the present invention has a plate-like shape having a plurality of convex portions on an upper surface, and is made of a porous ceramic in which open cells are formed on the surface.
[0009]
When the pottery is cooked on the pottery plate of the present invention, excess oil and the like generated from raw meat and the like can be penetrated into the inside by continuous bubbles, so that stickiness of barbecue dishes can be prevented. For this reason, the barbecue food thus obtained becomes delicious with an appropriate amount of oil remaining.
[0010]
In particular, since the porcelain plate for porcelain cooking is made of porous ceramics, porcelain cooking can be performed with far infrared rays, and a more delicious barbecue dish can be obtained. In addition, since the pottery plate for cooking pottery has a plurality of projections on the upper surface, the raw meat or the like is cooked while being supported by the plurality of projections. During this time, since each protruding portion protrudes from the main body other than the protruding portion, the temperature is maintained at a temperature lower than the temperature of the main body, and the raw meat or the like is rarely directly heated at the temperature of the main body. In addition, since air exists between the projections, the air generates natural convection while taking in outside air between the main body and the raw meat. For this reason, the raw meat is heated slowly to the inside by the radiant heat from the main body without excessively burning or burning the surface of the food material in a form similar to the so-called `` high heat fire '', You can get delicious barbecue dishes.
[0011]
Further, since excess oil and the like permeates into the porcelain plate for cooking pottery and is not directly supplied to a heating device such as a gas stove, it is difficult to be burned, and it is difficult to generate smoke or smell. Even if excess oil or the like is present on the upper surface side, the air existing between the projections generates natural convection while taking in the outside air, so that oxygen of the outside air is supplied to the oil and the like, so that incomplete combustion does not easily occur. Therefore, it is hard to produce smoke and smell.
[0012]
Since the amount of excess oil and the like is considered to increase proportionally with the amount of pottery cooking, when the amount of oil and the like in one pottery plate becomes saturated, the amount of the pottery plate becomes larger. It is preferable to perform baking or replacement. In addition, the pottery plate for cooking pottery, in which the amount of oil or the like is saturated, can be regenerated by being heated in a place having a device capable of collecting or burning smoke and odor.
[0013]
Therefore, according to the porcelain plate for cooking pottery of the present invention, it is difficult to emit smoke and odor, and a delicious barbecue dish can be obtained.
[0014]
In the pottery plate for pottery cooking of the present invention, the protrusions may be hemispherical, cylindrical, prismatic, conical, pyramidal, or the like. It is preferable that the convex portion is hemispherical. In this case, since the surface area of the projections is small, the cleanability of the pottery plate for pottery cooking is improved. The hemispherical projections preferably have a diameter in plan view of 3 to 20 mm, a height from the main body of 0.5 to 20 mm, and an interval in the main body of 0.5 to 20 mm. If the diameter in plan view is less than 3 mm or more than 20 mm, it is difficult to allow air to exist between the main body and the raw meat or the like, and it is difficult to obtain the effects of the present invention. If the height from the main body is less than 0.5 mm, it is difficult for air to exist between the main body and the raw meat, etc. If the height from the main body exceeds 20 mm, excess air exists between the main body and the raw meat, etc. In any case, it is difficult to obtain the effects of the present invention. If the interval is less than 0.5 mm or more than 20 mm, it is difficult for air to exist between the main body and the raw meat, and the effect of the present invention is hardly obtained.
[0015]
According to the test results of the inventors, it is preferable that the water absorption by open cells is 20% or less. If the water absorption exceeds 20%, it is difficult for a suitable oil or the like to remain in barbecue dishes. More preferably, the water absorption by the open cells is 3 to 10%. If the water absorption is within this range, oil or the like suitable for barbecue dishes remains.
[0016]
In the method for producing a pottery plate for cooking pottery of the present invention, a molding step of obtaining a plate-shaped molded body having a plurality of convex portions on the upper surface with soil including petalite, and open cells remaining inside the surface remain therein. And a firing step of firing the molded body to obtain a pottery plate for pottery cooking.
[0017]
Pottery plates made of clay containing petalite are resistant to thermal shock. As the clay containing petalite, commercially available clay pot clay or the like can be used. According to the considerations of the inventors, the soil is 60% by mass or less of Al 2 O 3 , 5% by mass or less of Li 2 O, 20% by mass or less of another alkali oxide, 20% by mass or less of alkaline earth oxide, and ignition It is preferable that the weight loss is 15% by mass or less and the balance is SiO 2 . If the composition is soil within this range, a pottery plate for pottery cooking suitable for pottery cooking can be manufactured. Al 2 O 3 15 to 35% by mass, Li 2 O 3% by mass or less, other alkali oxides 10% by mass or less, alkaline earth oxides 10% by mass or less, loss on ignition 3 to 10% by mass and balance from SiO 2 More preferably. If the composition is soil within this range, a pottery plate for pottery cooking suitable for pottery cooking can be produced more reliably. Soil having a composition in these ranges is preferably subjected to a firing step at 750 to 1250 ° C. When the firing step is performed at a temperature exceeding 1250 ° C., the porosity becomes small, and the water absorption tends to be inappropriate. On the other hand, if the firing step is performed at a temperature lower than 750 ° C., the sintering hardly proceeds, and the sintering becomes vulnerable to thermal shock. More preferably, the firing step is performed at 800 to 1230 ° C.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
First, a commercially available clay pot clay having the composition shown in Table 1 is prepared. The mineral composition of the clay pot clay is Quartz, Kaolin, Muscovite, Petalite, Hematite, Albite, Orthclase, and Cordierite. It is.
[0020]
[Table 1]
Figure 2004057491
[0021]
Then, as shown in FIG. 1, as the extrusion step S1, after preparing the clay pot clay into a clay having a moisture content of about 22%, the clay is put into a vacuum extrusion molding machine, and is subjected to primary molding of 330 mm in width and 30 mm in thickness. Get the goods. Next, as a slicing step S2, this primary molded product is sliced into two pieces in the thickness direction to obtain a secondary molded product having a width of 330 mm and a thickness of 15 mm. Thereafter, as a pressing step S3, a press machine having a resin plate having a plurality of concave portions provided on an upper mold is prepared, and a secondary molded product is provided in the press machine. Then, the secondary molded product is pressurized with a pressure of 200 kg / cm 2 to obtain a plate-shaped molded body 10 having a plurality of convex portions 10a on the upper surface, as shown in FIG. The extrusion step S1, the slicing step S2, and the pressing step S3 are forming steps.
[0022]
Thereafter, as a drying step S4, the molded body 10 is left for 3 days, and then kept in a drying oven maintained at 80 ° C. for 24 hours. Then, the dried molded body 10 is subjected to the following firing step S5.
[0023]
In the firing step S5 of the test sample 1, the molded body 10 was put in a gas furnace under an oxidizing atmosphere, heated to 1200 ° C at a heating rate of 100 ° C / hour, and then kept at 1200 ° C for 1 hour. Then, let it cool naturally.
[0024]
In the firing step S5 of the test sample 2, the molded body 10 was placed in a gas furnace under a reducing atmosphere, heated to 1240 ° C at a heating rate of 100 ° C / hour, and then held at 1240 ° C for 1 hour. Then, let it cool naturally.
[0025]
In the firing step S5 of the test sample 3, the molded body 10 is put in a gas furnace under an oxidizing atmosphere, and the temperature is raised to 850 to 1100 ° C at a heating rate of 100 ° C / hour. Hold for 1 hour, then allow to cool naturally.
[0026]
Thus, as shown in FIG. 2 and FIG. In addition, it is also possible to form a convex part protruding upward to prevent the falling of the food material on the periphery of the pottery plate 20 for cooking pottery. These pottery plates 20 for pottery cooking have a plate shape having a plurality of convex portions 20a on the upper surface, and are made of porous ceramics in which open cells are formed on the surface. Each projection 20a is a hemisphere having a diameter of 7 mm and a height of 1.5 mm, and these are arranged at regular intervals of 10 mm on the main body 20b other than the projection 20a.
[0027]
Table 2 shows the water absorption (%) and the porosity (%) of the porcelain plates 20 for cooking pottery of Test products 1 to 3.
[0028]
[Table 2]
Figure 2004057491
[0029]
The pottery plates 20 for cooking the specimens 1 to 3 are placed on the gas stove, and after the pottery plates 20 for cooking the pottery are heated, the raw meat is placed.
[0030]
In the case of using the porcelain plate 20 for grilling the test product 1, excess oil and the like generated from raw meat could be permeated into the interior by continuous bubbles, so that stickiness of the grilled meat could be prevented. On the other hand, when the porcelain plate 20 for cooking the grilled product of the test sample 2 was used, excess oil and the like hardly penetrated, and the grilled meat became sticky. For this reason, according to the pottery plate 20 for cooking the grilled product of the test sample 1, it can be seen that a delicious oiled meat can be obtained with an appropriate amount of oil or the like remaining. On the other hand, the porcelain plate 20 for cooking the ware for test sample 2 cracked shortly after starting cooking.
[0031]
In addition, since the pottery plates 20 for pottery cooking of the test articles 1 and 2 were made of porous ceramics, pottery cooking could be performed with far infrared rays, and a considerably delicious barbecue was obtained. In particular, according to the porcelain plate 20 for cooking the grilled product of the test sample 1, the raw meat is not excessively burned or scorched due to radiant heat from the main body 20b in a form close to a so-called "high-fire far-fire". Until it was heated slowly until a softer, more delicious yakiniku was obtained.
[0032]
In addition, when the pottery plates 20 for cooking the specimens 1 and 2 are used, excess oil or the like penetrates into the pottery plates 20 for cooking and is not directly supplied to the gas stove, so that it is difficult to be burned, and Less likely to smell. Further, even if excess oil or the like exists on the upper surface side, since the air existing between the projections 20a takes in the outside air and generates natural convection, oxygen of the outside air is supplied to the oil and the like, resulting in incomplete combustion. It is difficult to generate smoke and odor. The same was true for raw vegetables and rice cakes.
[0033]
Therefore, according to the test products 1 and 2, especially the ceramic plate 20 for cooking the grilled product of the test product 1, it is difficult to emit smoke and smell, and a delicious barbecue dish can be obtained.
[0034]
Moreover, since each convex part 20a of the pottery plate 20 for pottery cooking of the test articles 1 and 2 has a hemispherical shape, excellent cleaning properties can be exhibited. Furthermore, the pottery plates 20 for pottery cooking of the test articles 1 and 2 are resistant to thermal shock because they are obtained from clay pot containing petalite.
[Brief description of the drawings]
FIG. 1 is a flowchart illustrating a manufacturing method according to an embodiment.
FIG. 2 is a perspective view of a molded body and a pottery plate for cooking pottery according to the embodiment.
FIG. 3 is a cross-sectional view of the pottery plate for cooking pottery according to the embodiment.
[Explanation of symbols]
10: molded body 10a: convex part 20: ceramic plate 20a for pottery cooking convex parts S1, S2, S3: molding step (S1: extrusion step, S2: slicing step, S3: pressing step)
S4: drying step S5: baking step

Claims (6)

上面に複数の凸部を有する板状をなし、内部には表面に開口する連続気泡が形成された多孔質セラミックスからなることを特徴とする焼物調理用陶板。A pottery plate for cooking pottery, wherein the pottery plate is made of a porous ceramic having a plate shape having a plurality of convex portions on an upper surface and having open cells formed on the surface inside. 凸部は半球状であることを特徴とする請求項1記載の焼物調理用陶板。2. The pottery plate according to claim 1, wherein the projections are hemispherical. 連続気泡による吸水率が20%以下であることを特徴とする請求項1又は2記載の焼物調理用陶板。The pottery plate according to claim 1 or 2, wherein the water absorption by open cells is 20% or less. 連続気泡による吸水率が3〜10%であることを特徴とする請求項3記載の焼物調理用陶板。The pottery plate according to claim 3, wherein the water absorption by the open cells is 3 to 10%. ペタライトを含む土により、上面に複数の凸部を有する板状をなす成形体を得る成形工程と、
内部には表面に開口する連続気泡が残存するように該成形体を焼成し、焼物調理用陶板を得る焼成工程とを備えていることを特徴とする焼物調理用陶板の製造方法。
By a soil containing petalite, a forming step of obtaining a plate-shaped formed body having a plurality of convex portions on the upper surface,
Baking the molded body so that open cells open to the surface remain therein, thereby obtaining a porcelain plate for porcelain cooking.
土は、Al60質量%以下、LiO5質量%以下、他のアルカリ酸化物20質量%以下、アルカリ土類酸化物20質量%以下、強熱減量15質量%以下及び残部SiOからなり、焼成工程は750〜1250°Cで行なうことを特徴とする請求項5記載の焼物調理用陶板の製造方法。The soil is 60% by mass or less of Al 2 O 3 , 5% by mass or less of Li 2 O, 20% by mass or less of another alkali oxide, 20% by mass or less of alkaline earth oxide, 15% by mass or less of ignition loss, and the balance SiO 2 6. The method of claim 5, wherein the firing step is performed at 750 to 1250 ° C.
JP2002220054A 2002-07-29 2002-07-29 Ceramic board for roast cooking and its production method Pending JP2004057491A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006248853A (en) * 2005-03-11 2006-09-21 Saga Prefecture Ceramic for absorbing microwaves and its manufacturing method
JP2006304853A (en) * 2005-04-26 2006-11-09 Tsann Kuen Japan Electrical Appliance Co Ltd Food cooker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006248853A (en) * 2005-03-11 2006-09-21 Saga Prefecture Ceramic for absorbing microwaves and its manufacturing method
JP2006304853A (en) * 2005-04-26 2006-11-09 Tsann Kuen Japan Electrical Appliance Co Ltd Food cooker

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