JPH0624876A - Production of terracotta - Google Patents
Production of terracottaInfo
- Publication number
- JPH0624876A JPH0624876A JP20012292A JP20012292A JPH0624876A JP H0624876 A JPH0624876 A JP H0624876A JP 20012292 A JP20012292 A JP 20012292A JP 20012292 A JP20012292 A JP 20012292A JP H0624876 A JPH0624876 A JP H0624876A
- Authority
- JP
- Japan
- Prior art keywords
- terracotta
- heat
- necessary
- binder
- aggregate
- 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 10
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 239000012210 heat-resistant fiber Substances 0.000 claims abstract description 12
- 239000011396 hydraulic cement Substances 0.000 claims abstract description 9
- 238000010304 firing Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000013532 laser treatment Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000004040 coloring Methods 0.000 abstract description 3
- 238000006703 hydration reaction Methods 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000011435 rock Substances 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
- 238000000034 method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000005542 laser surface treatment Methods 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00551—Refractory coatings, e.g. for tamping
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Finishing Walls (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築用外壁の装飾部材
として使用される改良されたテラコッタの製造方法およ
び該製造方法によって製造されたテラコッタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an improved terracotta used as a decorative member for a building outer wall and a terracotta manufactured by the method.
【０００２】[0002]
【従来の技術】テラコッタとは、元来素焼きの意味であ
るが、建築物の外装用装飾部材、特にパラペット、蛇
腹、柱頭などのような複雑な表面模様を有している大型
粘土製品のことである。このようなテラコッタは、適当
に調製した粘土配合物をセッコウ原型に押し付けて空洞
のある所望形状の成形品を作り、これを焼成したもので
あり、その表面に半光沢の上薬を施こしたものが多く、
深みのある赤褐色やブラウン系（マンセル記号：７．５
Ｒ４／８）の外観を有するものなどがある。このような
テラコッタを施工する場合、平物はタイル工事に準じて
行うが、型物は銅線や真鍮線などの引き金物によって行
っている。2. Description of the Related Art Terracotta originally means unglazed clay, but it is a large-scale clay product having a complex surface pattern such as parapets, bellows, and stigmas, especially for decorative materials for exterior of buildings. Is. Such a terracotta is one in which an appropriately prepared clay mixture is pressed against a gypsum master to form a molded product having a desired shape with cavities, which is fired, and a semi-gloss glaze is applied to its surface. Many things,
Deep reddish brown or brown (Munsell code: 7.5
Some have the appearance of R4 / 8). When constructing such a terracotta, flat objects are made in accordance with the tile work, but molds are made by triggers such as copper wires and brass wires.
【０００３】しかしながら、このような従来のテラコッ
タは、素焼き程度の焼き締めを行うだけであるので、
強度が小さい；耐衝撃性が劣る；大型の部材を作成
することができずクラックを生じ易い；製品歩留りが
悪い；製造に高度の熟練を要する等の欠点がある。[0003] However, such a conventional terracotta only performs cinching to the extent that it is unglazed.
It has the following drawbacks: low strength; poor impact resistance; large parts cannot be produced and cracks easily occur; product yield is poor;
【０００４】[0004]
【発明が解決しようとする課題】本発明の課題は、前記
のような欠点の排除された改良されたテラコッタおよび
その製造方法を提供することであり、このような課題は
焼成時の熱収縮の小さい原料を使用してテラコッタを製
造することにより解決されることがわかった。SUMMARY OF THE INVENTION An object of the present invention is to provide an improved terracotta in which the above-mentioned drawbacks are eliminated and a method for producing the same, and such an object is to prevent thermal contraction during firing. It has been found to be solved by producing terracotta using small raw materials.
【０００５】[0005]
【課題を解決するための手段・作用】本発明によれば、
上記の課題は、水硬性セメント、耐熱性骨材、耐熱性繊
維、加熱時に溶融しセラミック化するバインダー、およ
び水からなる混合物を、必要により着色処理した後、型
枠内に打設し、水和反応により硬化させ、乾燥し、焼成
することを特徴とするテラコッタの製造方法によって解
決される。上記混合物を水和反応により硬化させた後、
乾燥し、施釉し、焼成することにより耐久性に優れた半
光沢のテラコッタを製造することができ、また、上記混
合物を水和反応により硬化させた後、乾燥し、焼成し、
次いでレーザー照射することにより更に優れた外観を有
するテラコッタを製造することができる。According to the present invention,
The above-mentioned problem is a mixture of hydraulic cement, heat-resistant aggregate, heat-resistant fiber, a binder that melts upon heating and becomes a ceramic, and a mixture of water, after coloring treatment if necessary, and then placed in a mold, and water. This is solved by a method for producing a terracotta, which is characterized by curing by a Japanese reaction, drying and firing. After curing the mixture by a hydration reaction,
Dried, glazed, it is possible to produce a semi-gloss terracotta excellent in durability by baking, also, after curing the mixture by a hydration reaction, dried, baked,
Then, laser irradiation is performed to produce a terracotta having a more excellent appearance.
【０００６】本発明による前記混合物は水硬性セメント
１５〜４０重量部、骨材３０〜６０重量部、溶融性物質
５〜３０重量部からなり、更に、耐熱性繊維０．５〜３
５重量部を添加することができ、この混合物は適量の水
を加えて常温硬化させることができる。前記混合物に
は、市販のセメント用減水剤等を添加して、成形体を製
造する際の水の量を減少させ、得られる耐熱部材を緻密
化することができるが、加熱前の乾燥が不充分である
と、加熱中に成形体が爆裂する恐れがあるので、充分な
乾燥の後に加熱することが必要である。乾燥温度および
乾燥時間は製造すべき成形体の密度および厚さによって
異なるが、一般には、例えば８０〜２００℃、好ましく
は１００〜１５０℃で数時間〜数日間の乾燥が適当であ
る。The mixture according to the present invention comprises 15 to 40 parts by weight of hydraulic cement, 30 to 60 parts by weight of aggregate, 5 to 30 parts by weight of fusible substance, and 0.5 to 3 parts of heat resistant fiber.
5 parts by weight can be added and the mixture can be room temperature cured by adding an appropriate amount of water. A commercially available cement water reducing agent or the like may be added to the mixture to reduce the amount of water used in the production of a molded body and to densify the resulting heat-resistant member, but drying before heating is not possible. If it is sufficient, the molded body may explode during heating, so it is necessary to heat after sufficient drying. The drying temperature and the drying time vary depending on the density and thickness of the molded product to be produced, but generally, for example, drying at 80 to 200 ° C, preferably 100 to 150 ° C for several hours to several days is suitable.
【０００７】本発明において使用する水硬性セメントと
しては、一般に市販されているものが使用できて、例え
ば普通ポルトランドセメント、白色セメント、高炉セメ
ント、アルミナセメント、ジエットセメント等何れでも
よく、その使用量は混合物１００重量部に対して１５重
量部以下では脱型強度が得られず、４０重量部以上にな
るとセメントペースト量が多くなり熱による劣化を受け
クラックが発生し易くなる。As the hydraulic cement used in the present invention, those commercially available can be used, and for example, ordinary Portland cement, white cement, blast furnace cement, alumina cement, jet cement, etc. may be used, and the amount thereof is used. If the amount is 15 parts by weight or less with respect to 100 parts by weight of the mixture, the demolding strength cannot be obtained, and if it is 40 parts by weight or more, the amount of cement paste increases and cracks easily occur due to deterioration due to heat.
【０００８】本発明において使用される骨材としては、
耐熱性を有する骨材であれば、何れでも良く、抗火石、
珪砂、珪石、軽量骨材、シャモット、陶器破砕物、火山
灰、シェルベン、スラグ等が挙げられ、加熱後の強度を
考えるならば抗火石が最も適当である。骨材は蓄熱作用
を有しているため、その使用量が３０重量部より少ない
と成形体を加熱後冷却すると、急激に温度が下がり、反
りやクラックが生じる。また、６０重量部以上になると
加熱前あるいは加熱後の強度が不足する。As the aggregate used in the present invention,
Any aggregate can be used as long as it has heat resistance.
Quartz sand, silica stone, lightweight aggregate, chamotte, crushed pottery, volcanic ash, schelben, slag, etc. are mentioned, and if considering strength after heating, anti-firestone is most suitable. Since the aggregate has a heat storage effect, if the amount of the aggregate used is less than 30 parts by weight, when the molded body is heated and then cooled, the temperature rapidly drops, causing warpage and cracks. If the amount is more than 60 parts by weight, the strength before or after heating becomes insufficient.
【０００９】本発明において使用する耐熱性繊維として
は耐熱性のウオラストナイト繊維が最も好ましく、特
に、アスペクト比が約１０〜２０のものが望ましい。そ
の他、セラミックス繊維、チタン酸ウィスカー等も使用
できる。本発明のテラコッタの加熱時に耐熱性繊維周辺
の溶融性物質が融解して一様に分散し、繊維同士が熔接
され、この熔接作用によって耐熱部分の寸法安定性およ
び耐熱衝撃性が向上する。耐熱性繊維の使用量が０．５
重量部よりも少ないと、加熱後の冷却時における熱衝撃
を緩衝する作用が劣りクラックや反りを生じ、３５重量
部よりも多いと、練り混ぜが非常に困難となり、良好な
成形体が得られない。The heat-resistant fibers used in the present invention are most preferably heat-resistant wollastonite fibers, and particularly preferably those having an aspect ratio of about 10-20. In addition, ceramic fiber, whisker titanate, etc. can also be used. When the terracotta of the present invention is heated, the fusible substance around the heat resistant fiber is melted and uniformly dispersed, and the fibers are welded to each other, and the welding action improves the dimensional stability and thermal shock resistance of the heat resistant portion. The amount of heat resistant fiber used is 0.5
If it is less than 35 parts by weight, the effect of buffering the thermal shock during cooling after heating is inferior and cracks or warpage occurs, and if it is more than 35 parts by weight, kneading becomes very difficult and a good molded product is obtained. Absent.
【００１０】本発明において使用する加熱時に溶融しセ
ラミック化するバインダーとしてはＳｉＯ2 、ＣａＯ、
Ｂ2 Ｏ3 およびアルカリ成分（Ｎａ2 Ｏ、Ｋ2 Ｏなど）
からなり、その他ＭｇＯ、Ａｌ2 Ｏ3 、ＰｂＯ、Ｚｎ
Ｏ、Ｆｅ2 Ｏ3 、ＴｉＯ2 または金属粉末等を含有して
いてもよい。また通常の組成のガラス粉末、上薬、水ガ
ラスも使用できる。その使用量は、５重量部より少ない
と加熱後の強度が不足するためにクラックが生じ、３０
重量部より多くなると加熱中の形状安定性が悪くなり変
形を生じ、また、溶融性物質を充分に練り混ぜることが
困難になり、溶融物質粉末中の空気が成形体表面に気泡
となって現われ、成形体の品質が低下する。これらのバ
インダーは適宜に組合せて使用することができる。As the binder used in the present invention, which melts upon heating and becomes a ceramic, SiO 2 , CaO,
B 2 O 3 and alkaline components (Na 2 O, K 2 O, etc.)
Made of MgO, Al 2 O 3 , PbO, Zn
It may contain O, Fe 2 O 3 , TiO 2, metal powder or the like. Further, glass powder, laxative, and water glass having a usual composition can also be used. If the amount used is less than 5 parts by weight, cracking occurs due to insufficient strength after heating,
If the amount is more than the weight part, the shape stability during heating deteriorates and deformation occurs, and it becomes difficult to knead the meltable substance sufficiently, and the air in the melted substance powder appears as bubbles on the surface of the molded body. However, the quality of the molded product deteriorates. These binders can be used in an appropriate combination.
【００１１】本発明において必要により行う着色処理に
は、所望の色を有する通常の組成の耐熱性顔料などであ
る。本発明方法の加熱処理は、前記混合物を加熱時に溶
融しセラミック化するバインダーの融点より高い温度、
例えば９００℃で１〜１．５時間焼成することによって
行われる。焼成時間は成形品の厚さによって変動する
が、このような加熱処理によって成形品がセラミック化
され優れた表面を有するテラコッタが得られる。また、
焼成した成形品に行うレーザー処理には任意のレーザー
を使用することができ、例えばＣＯ2 レーザーを用いて
１．２ｍ2 ／ｈ／ｋｗの面照射速度でレーザー処理する
ことにより、表面のみが溶け表面の透明化された美麗な
テラコッタが得られる。In the present invention, the coloring treatment optionally performed is a heat-resistant pigment having a desired color and having a usual composition. The heat treatment of the method of the present invention comprises heating the mixture to a temperature higher than the melting point of the binder that melts into a ceramic when heated,
For example, it is performed by firing at 900 ° C. for 1 to 1.5 hours. Although the firing time varies depending on the thickness of the molded product, such heat treatment makes the molded product ceramic and obtains a terracotta having an excellent surface. Also,
Any laser can be used for the laser treatment performed on the fired molded product. For example, only the surface is melted by laser treatment using a CO 2 laser at a surface irradiation rate of 1.2 m 2 / h / kw. A beautiful terracotta with a transparent surface can be obtained.
【００１２】本発明によるテラコッタを製造するための
前記混合物の成形には流し込み法、押し出し法、加圧法
等の任意の方法を採用することができる。本発明による
テラコッタの製造工程を図１に例示する。先づ、水硬性
セメント、耐熱性骨材、耐熱性繊維および加熱時に溶融
しセラミック化するバインダーの各原料の所定量をミキ
サーで調合し、型枠に注入して成形する。この成形品を
養生・乾燥し、次いで焼成すると、焼成のままの無釉テ
ラコッタが得られる。前記成形品を乾燥し、施釉した
後に焼成すると、半光沢の表面を有する施釉テラコッタ
が得られ、前記成形品を乾燥、焼成した後にレーザー
照射すると、レーザー表面処理により表面のセラミック
化された美麗なテラコッタが得られる。For molding the mixture for producing the terracotta according to the present invention, any method such as a pouring method, an extrusion method and a pressure method can be adopted. The manufacturing process of the terracotta according to the present invention is illustrated in FIG. First, a predetermined amount of each raw material of hydraulic cement, heat-resistant aggregate, heat-resistant fiber, and a binder that melts into a ceramic when heated is mixed with a mixer, and poured into a mold to be molded. When this molded product is cured and dried, and then fired, a glazed terracotta as it is fired is obtained. When the molded product is dried and glazed and then baked, a glazed terracotta having a semi-glossy surface is obtained, and when the molded product is dried, baked and laser-irradiated, the surface is made into a ceramic by a laser surface treatment and is beautiful. Terracotta is obtained.
【００１３】以下の実施例によって本発明を更に具体的
に説明する。The present invention will be described more specifically by the following examples.
【００１４】[0014]
実施例１ 水硬性セメントとして市販のポルトランドセメント２０
重量部、耐熱性骨材として最大粒径５ｍｍの抗火石４０
重量部、耐熱性繊維としてウオラストナイト繊維２０重
量部、加熱時に溶融しセラミック化するバインダーとし
て次の組成を有する物質：ＳｉＯ2 ４０％、Ａｌ2 Ｏ3
５％、ＣａＯ５％、Ｎａ2 Ｏ５％、Ｋ2Ｏ２％、ＰｂＯ
２５％、Ｂ2 Ｏ3 １０％、２０重量部を水３０部と混練
し、３０ｃｍ×３０ｃｍ×２ｃｍの丸リブ付模様の型枠
に注入して供試体を成形した。この供試体を２０℃湿空
中で２４時間静置した後脱型し、１０５℃で２４時間乾
燥し、電気炉にて９００℃で１時間加熱した。加熱後に
得られた無釉テラコッタの圧縮強度は４５０ｋｇｆ／ｃ
ｍ2 、収縮率は０．４％であった。Example 1 Portland cement 20 commercially available as hydraulic cement
Anti-fire stone 40 with a maximum particle size of 5 mm as a weight part and heat resistant aggregate 40
Parts by weight, 20 parts by weight of wollastonite fiber as heat resistant fiber, a substance having the following composition as a binder that melts into a ceramic when heated and has the following composition: SiO 2 40%, Al 2 O 3
5%, CaO 5%, Na 2 O 5%, K 2 O 2%, PbO
20% by weight of 25%, 10% by weight of B 2 O 3 was kneaded with 30 parts of water, and the mixture was poured into a mold with a circular ribbed pattern of 30 cm × 30 cm × 2 cm to form a specimen. This sample was left standing in a humid atmosphere at 20 ° C. for 24 hours, then demolded, dried at 105 ° C. for 24 hours, and heated in an electric furnace at 900 ° C. for 1 hour. Compressive strength of glaze-free terracotta obtained after heating is 450 kgf / c
m 2 , and the shrinkage ratio was 0.4%.
【００１５】実施例２ 実施例１と同様に成形、養生、乾燥した３０ｃｍ×３０
ｃｍ×２ｃｍの丸リブ付模様の板の表面にスプレーガン
により釉薬スラリー（釉薬：ＣＭＣ：水（重量比）＝１
００：０．３：６０）を１．５ｋｇ／ｍ2 の厚さで施こ
した後、電気炉にて１０５℃で２時間乾燥し、さらに、
昇温し、９００℃で１時間焼成することにより耐久性に
優れた半光沢の施釉テラコッタが得られた。Example 2 Molded, aged and dried in the same manner as in Example 1 30 cm × 30
Glazed slurry (glaze: CMC: water (weight ratio) = 1 with a spray gun on the surface of a plate with a cm × 2 cm round rib pattern.
00: 0.3: 60) at a thickness of 1.5 kg / m 2 and then dried in an electric furnace at 105 ° C. for 2 hours.
By raising the temperature and baking at 900 ° C. for 1 hour, a semi-gloss glazed terracotta excellent in durability was obtained.
【００１６】実施例３ 実施例１と同様に成形、乾燥、電気炉にて８５０℃で１
時間焼成した３０ｃｍ×３０ｃｍ×２ｃｍの丸リブ付模
様の板の表面を出力５ｋｗの炭酸ガスレーザーを用いて
７５０ｃｍ2 ／分の面照射速度で照射した。レーザー照
射により板の表面のみが溶融、ガラス化し、表面の透明
化された美麗なテラコッタが得られた。なお、レーザー
照射後の圧縮強度は４４０ｋｇ／ｃｍ2 で、表面ガラス
層の厚さは０．４ｍｍであった。Example 3 As in Example 1, molding, drying, and heating in an electric furnace at 850 ° C. for 1 hour
The surface of the plate having a circular rib pattern of 30 cm × 30 cm × 2 cm fired for an hour was irradiated at a surface irradiation rate of 750 cm 2 / min using a carbon dioxide gas laser with an output of 5 kw. Only the surface of the plate was melted and vitrified by laser irradiation, and a beautiful terracotta with a transparent surface was obtained. The compressive strength after laser irradiation was 440 kg / cm 2 , and the thickness of the surface glass layer was 0.4 mm.
【００１７】[0017]
【発明の効果】本発明によれば、大きい強度で耐衝撃性
に優れた大型のテラコッタを高い製品歩留りで容易に製
造することができ、また、レーザー処理することにより
表面のセラミック化した美麗なテラコッタが得られる。EFFECTS OF THE INVENTION According to the present invention, a large terracotta having high strength and excellent impact resistance can be easily manufactured with a high product yield, and the surface of the terracotta can be made beautiful by laser treatment. Terracotta is obtained.
【図１】本発明によるテラコッタの製造工程図である。FIG. 1 is a manufacturing process diagram of a terracotta according to the present invention.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 14:06 Ｚ 2102−4Ｇ 14:38 Ｃ 2102−4Ｇ 28:24） 6345−4Ｇ (72)発明者 安 伸二 神奈川県茅ヶ崎市茅ヶ崎511番地 茅ヶ崎 グリーンハイツ１−203 (72)発明者 杉本 賢司 神奈川県茅ヶ崎市高田３丁目３番10号 (72)発明者 ウィグナラージャ・シバクマラン 神奈川県横浜市旭区白根２丁目35番６号─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location C04B 14:06 Z 2102-4G 14:38 C 2102-4G 28:24) 6345-4G (72) Inventor Shinji Anzai 511 Chigasaki, Chigasaki City, Kanagawa Prefecture 1-320 Chigasaki Green Heights (72) Inventor Kenji Sugimoto 3-3 Takada, Chigasaki City, Kanagawa Prefecture (72) Inventor Wignaraja Shivakumaran Asahi City, Yokohama City, Kanagawa Prefecture 2-35-6 Shirane, Ward
Claims (3)
維、加熱時に溶融しセラミック化するバインダー、およ
び水からなる混合物を、必要により着色処理した後、型
枠内に打設し、水和反応により硬化させ、乾燥し、焼成
することを特徴とするテラコッタの製造方法。1. A mixture of hydraulic cement, heat-resistant aggregate, heat-resistant fiber, a binder that melts when heated to form a ceramic, and water, if necessary after being color-treated, and then cast into a formwork to prepare water. A method for producing terracotta, which comprises curing by a Japanese reaction, drying and firing.
維、加熱時に溶融しセラミック化するバインダー、およ
び水からなる混合物を、必要により着色処理した後、型
枠内に打設し、水和反応により硬化させ、乾燥し、施釉
し、焼成することを特徴とするテラコッタの製造方法。2. A mixture of hydraulic cement, heat-resistant aggregate, heat-resistant fiber, a binder that melts when heated to form a ceramic, and water, if necessary after being colored, and then placed in a mold to form water. A method for producing terracotta, which comprises curing by a Japanese reaction, drying, glazeing, and firing.
維、加熱時に溶融しセラミック化するバインダー、およ
び水からなる混合物を、必要により着色処理した後、型
枠内に打設し、水和反応により硬化させ、次いで焼成し
た後にレーザー処理を施こすことを特徴とするテラコッ
タの製造方法。3. A mixture of hydraulic cement, heat-resistant aggregate, heat-resistant fiber, a binder that melts when heated and turns into a ceramic, and water, if necessary after being colored, and then cast in a formwork, A method for producing a terracotta, which comprises curing by a Japanese reaction, then firing and then performing a laser treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20012292A JPH0624876A (en) | 1992-07-06 | 1992-07-06 | Production of terracotta |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20012292A JPH0624876A (en) | 1992-07-06 | 1992-07-06 | Production of terracotta |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0624876A true JPH0624876A (en) | 1994-02-01 |
Family
ID=16419193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20012292A Pending JPH0624876A (en) | 1992-07-06 | 1992-07-06 | Production of terracotta |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624876A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006096595A (en) * | 2004-09-29 | 2006-04-13 | Nichiha Corp | Method for producing inorganic board |
| KR100893552B1 (en) * | 2008-02-15 | 2009-04-17 | 명지대학교 산학협력단 | Method for manufacturing antibiotic terra-cotta |
| JP2012502308A (en) * | 2008-09-10 | 2012-01-26 | オノフリオ・アコネ | Bottle shield |
-
1992
- 1992-07-06 JP JP20012292A patent/JPH0624876A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006096595A (en) * | 2004-09-29 | 2006-04-13 | Nichiha Corp | Method for producing inorganic board |
| KR100893552B1 (en) * | 2008-02-15 | 2009-04-17 | 명지대학교 산학협력단 | Method for manufacturing antibiotic terra-cotta |
| JP2012502308A (en) * | 2008-09-10 | 2012-01-26 | オノフリオ・アコネ | Bottle shield |
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