JPH107934A - Coating material and electrical water heater coated therewith - Google Patents
Coating material and electrical water heater coated therewithInfo
- Publication number
- JPH107934A JPH107934A JP16920096A JP16920096A JPH107934A JP H107934 A JPH107934 A JP H107934A JP 16920096 A JP16920096 A JP 16920096A JP 16920096 A JP16920096 A JP 16920096A JP H107934 A JPH107934 A JP H107934A
- Authority
- JP
- Japan
- Prior art keywords
- coating material
- ceramic powder
- water heater
- inner container
- material according
- 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
Landscapes
- Cookers (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コーテイング材及
びこのコーテイング材を施した電気湯沸器に関し、特に
水垢の付着を防止するコーティング材及びこのコーティ
ング材を施した電気湯沸器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material and an electric water heater provided with the coating material, and more particularly to a coating material for preventing adhesion of scale and an electric water heater provided with the coating material. .
【０００２】[0002]
【従来の技術】近年、電気湯沸器の内容器内面にはフッ
素樹脂を主成分とする一般にフッ素コートと呼ばれるも
のが使用されている。2. Description of the Related Art In recent years, an inner surface of an inner portion of an electric water heater has been generally made of a fluorine resin and generally called a fluorine coat.
【０００３】[0003]
【発明が解決しようとする課題】しかし、これら従来の
コーティング材を使用した電気湯沸器でお湯を沸かす
と、フッ素コートと呼ばれるコーティング材を使用して
いるにも係わらず水垢が付着し、外観上見栄えの良いも
のではなく、場合によっては容器より水垢が剥離し、湯
面に浮遊して違和感を与えるなど問題があった。However, when water is boiled by an electric water heater using these conventional coating materials, water scale adheres despite the use of a coating material called a fluorine coat, and the appearance is reduced. It does not look good, and in some cases, there is a problem that water scale peels off from the container and floats on the surface of the bath to give a sense of incongruity.
【０００４】本発明は、上述した従来の課題を解決する
ものであり、水垢の付着を防止することが出来るコーテ
ィング材及びこれら性能を付与した電気湯沸器を提供す
ることを目的とする。An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a coating material capable of preventing the adhesion of scale, and an electric water heater provided with these properties.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めに本発明のコーティング材は、塗料に酸化ケイ素及び
酸化アルミニウムを主成分とするセラミック粉末を添加
したものであり、上記酸化ケイ素及び酸化アルミニウム
を主成分とするセラミック粉末から水中にケイ素イオン
が溶出することにより、水垢となって析出しやすいカル
シウムやマグネシウムのイオン状態が安定化して水垢が
析出しにくくなり、水垢の付着防止効果が得られる。ま
た、電気湯沸器の内容器を構成する金属基材表面にこの
コーティング材を使用することにより、上述した性能を
電気湯沸器に付与することが可能となる。In order to solve the above-mentioned problems, a coating material of the present invention is obtained by adding a ceramic powder containing silicon oxide and aluminum oxide as a main component to a paint. Elution of silicon ions into water from ceramic powder containing aluminum as a main component stabilizes the calcium and magnesium ion states, which are likely to become scales and precipitates, making it difficult for scales to precipitate, and has the effect of preventing the adhesion of scales. Can be Further, by using this coating material on the surface of the metal base material constituting the inner container of the electric water heater, the above-described performance can be imparted to the electric water heater.
【０００６】[0006]
【発明の実施の形態】請求項１記載の発明は、塗料に酸
化ケイ素及び酸化アルミニウムを主成分とするセラミッ
ク粉末を添加したものである。BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 is one in which a ceramic powder containing silicon oxide and aluminum oxide as main components is added to a paint.
【０００７】また、請求項２記載の発明は、上記セラミ
ック粉末は酸化ケイ素と酸化アルミニウムを主成分とす
る天然鉱物の粉砕品もしくは前記天然鉱物の粉砕品と少
なくとも粘土を混合し、焼成した焼結体の粉砕品のいず
れかとしたものである。Further, according to the present invention, the ceramic powder is obtained by sintering a crushed natural mineral containing silicon oxide and aluminum oxide as a main component or a crushed natural mineral and at least clay. Any of the pulverized products of the body.
【０００８】また、請求項３記載の発明は、セラミック
粉末の酸化ケイ素と酸化アルミニウムの比率がＳｉＯ2
／Ａｌ2Ｏ3＝１〜１０の範囲としたものである。Further, the invention according to claim 3 is that the ratio of silicon oxide to aluminum oxide in the ceramic powder is SiO 2
/ Al 2 O 3 = 1 to 10.
【０００９】さらに、請求項４記載の発明は、塗料はフ
ッ素樹脂を含有するようにしたものであり、請求項５記
載の発明は、このフッ素樹脂含有量は８０重量％以下と
し、また、請求項６記載の発明は、セラミック粉末の添
加量はフッ素樹脂の固形分に対して重量比で０．５％〜
３０％の範囲としたものである。Further, according to a fourth aspect of the present invention, the coating material contains a fluororesin. According to a fifth aspect of the invention, the content of the fluororesin is 80% by weight or less. Item 6. The invention according to Item 6, wherein the amount of the ceramic powder added is 0.5% by weight to the solid content of the fluororesin.
The range is 30%.
【００１０】さらに、請求項７記載の発明は、上記記載
のコーティング材を内容器を構成する金属基材表面に被
覆し、表面処理層を設けたものである。[0010] Further, the invention according to claim 7 is that the coating material described above is coated on the surface of a metal base material constituting an inner container, and a surface treatment layer is provided.
【００１１】また、請求項８記載の発明は、上記記載の
コーティング材を内容器の側面のみに被覆し内容器の底
面には塗料に中空で多孔性のマイクロカプセルを添加し
たコーティング材を被覆し、表面処理層を設けたもので
ある。According to a further aspect of the present invention, the coating material described above is coated only on the side surface of the inner container, and the bottom surface of the inner container is coated with a coating material obtained by adding hollow and porous microcapsules to the paint. And a surface treatment layer.
【００１２】[0012]
（実施例１）以下、本発明の実施例について添付図面に
基づいて説明する。図１は実施例１および２に於ける電
気湯沸器の断面図を示す。(Embodiment 1) An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view of the electric water heater in the first and second embodiments.
【００１３】１は外ケースで、この外ケース１内に有底
筒状の液体を入れる内容器２が収容されている。この内
容器２は底にはマイカヒータを用いた発熱体３が溶接に
より一体化されている。また、内容器２の内面には４フ
ッ化６プロピレン共重合樹脂（以下ＦＥＰと略す）とポ
リエーテルサルフォン（以下ＰＥＳと略す）を主成分と
するフッ素塗料に、酸化ケイ素及び酸化アルミニウムを
主成分とするセラミック粉末を、前記フッ素塗料のフッ
素樹脂固形分１００％に対して１０％の比率になるよう
に添加したコーティング材にて表面処理層２ａが形成さ
れている。Reference numeral 1 denotes an outer case, in which an inner container 2 for containing a bottomed cylindrical liquid is accommodated. In the inner container 2, a heating element 3 using a mica heater is integrated at the bottom by welding. In addition, on the inner surface of the inner container 2, silicon oxide and aluminum oxide are mainly used in a fluorine paint mainly composed of tetrafluoro-6 propylene copolymer resin (hereinafter abbreviated as FEP) and polyether sulfone (hereinafter abbreviated as PES). The surface treatment layer 2a is formed of a coating material in which ceramic powder as a component is added at a ratio of 10% with respect to 100% of the fluorine resin solid content of the fluorine paint.
【００１４】なお、セラミック粉末は次のようにして準
備したものを使用した。天然鉱物で酸化ケイ素及び酸化
アルミニウムを主成分とする長石を粉砕し、この粉砕品
に木節粘土の粉末を長石／粘土＝６０／４０の比率で混
合し、造粒したのち一定形状の圧粉体に成形し１２００
℃で焼結した。このようにして得られた焼結体を粉砕し
平均粒径が１０ミクロン以下になるように調整した。こ
のようにして調整したセラミック粉末の最終組成を（表
１）に示した。The ceramic powder used was prepared as follows. A feldspar mainly composed of silicon oxide and aluminum oxide is crushed with a natural mineral, and a powder of Kibushi clay is mixed with the crushed product in a ratio of feldspar / clay = 60/40, granulated, and then compacted into a fixed shape. Molded into a body 1200
Sintered at ℃. The sintered body thus obtained was pulverized and adjusted so that the average particle size became 10 microns or less. The final composition of the ceramic powder thus adjusted is shown in (Table 1).
【００１５】[0015]
【表１】 [Table 1]
【００１６】４は内容器２の開口部を覆う蓋体であり、
開閉自在に枢着され、内部に蒸気通路５を有している。
６はモータであり、このモータ６にポンプ７が連動し、
モータ６の駆動により吸込口８より、液体を吸い込み、
吐出口９より液体を吐出するようになっている。１０は
可変部およびつまみ（いずれも図示せず）などから構成
されている操作部であり、液体の吐出量をコントロール
している。１１は注出口であり、吐出口９より吐出され
た液体は連通管１２を通って注出口１１よりカップなど
の容器に注出される。Reference numeral 4 denotes a lid for covering the opening of the inner container 2,
It is openably and closably pivoted and has a steam passage 5 inside.
Reference numeral 6 denotes a motor, and a pump 7 is interlocked with the motor 6,
The liquid is sucked from the suction port 8 by the drive of the motor 6,
The liquid is discharged from the discharge port 9. An operation unit 10 includes a variable unit, a knob (both not shown), and the like, and controls a liquid discharge amount. Reference numeral 11 denotes a spout, and the liquid discharged from the discharge port 9 passes through the communication pipe 12 and is discharged from the spout 11 into a container such as a cup.
【００１７】このような構成の電気湯沸器の水垢付着性
と塗膜特性について評価を行った。また、比較のために
従来のフッ素塗料のみからなる表面処理層２ａを形成し
た電気湯沸器についても同様に評価を行った。The electric water heater having such a configuration was evaluated with respect to the scale adhesion and coating film characteristics. For comparison, an electric water heater having a conventional surface treatment layer 2a made of only a fluorine paint was similarly evaluated.
【００１８】なお、水垢付着性は硬度１００の調整水を
用い沸騰後２４時間保温し、この後お湯を捨てるという
操作を１サイクルとし１００サイクル繰り返すことによ
り行った。また、塗膜特性は４％塩化ナトリウムの水溶
液を内容器２に入れ、沸騰させた後２０日間保温するこ
とにより行った。The scale adhesion was determined by repeating the operation of boiling water using adjusted water having a hardness of 100, keeping it warm for 24 hours after boiling, and then discarding the hot water as one cycle, and repeating 100 cycles. The properties of the coating film were determined by placing an aqueous solution of 4% sodium chloride in the inner container 2, boiling, and keeping the temperature for 20 days.
【００１９】この結果、水垢付着性においては水垢の付
着がほとんど見られない場合を○と判断し、内容器２の
一部に多量の水垢が、または全体に極わずかの水垢が付
着している場合を△と判断し、さらに水垢が内容器２全
体に多量に付着している場合を×と判断した。また、塗
膜特性においては塗膜の剥離や膨れなどが見られない場
合を○と判断し、小さい膨れのみがわずか見られる場合
を△と判断し、さらに大きな膨れや一部剥離などが見ら
れる場合を×と判断した。このような評価基準により評
価した結果を（表２）に示した。As a result, in the case where the scale is hardly observed in the scale adhesion, it is judged to be "good", and a large amount of scale is attached to a part of the inner container 2 or a very small amount of scale is attached to the entire inner container 2. The case was judged as Δ, and the case where a large amount of scale was attached to the entire inner container 2 was judged as ×. In the properties of the coating film, a case where no peeling or swelling of the coating film is observed is judged as ○, and a case where only a small swelling is slightly observed is judged as △, and further larger swelling or partial peeling is observed. The case was judged as x. The results of evaluation according to such evaluation criteria are shown in (Table 2).
【００２０】[0020]
【表２】 [Table 2]
【００２１】（表２）において、ＮＯ１は従来品であり
ＮＯ２は本発明品を示す。この結果から明らかなよう
に、ＮＯ１は塗膜特性は問題がないが、水垢付着性は悪
く水垢が著しく付着した。一方、ＮＯ２の本発明品で
は、塗膜特性及び水垢付着性の両方において問題は見ら
れず優れた特性を示した。In Table 2, NO1 is a conventional product and NO2 is a product of the present invention. As is evident from the results, NO1 has no problem in the properties of the coating film, but has poor scale adhesion and markedly adheres to the scale. On the other hand, the product of the present invention of NO2 showed excellent characteristics without any problem in both the coating film property and the scale adhesion.
【００２２】また、ＮＯ２おいて表面処理層２ａを形成
するコーティング材のセラミック粉末の酸化ケイ素と酸
化アルミニウムの比率を変化させると（表３）に示すよ
うな結果が得られた。When the ratio of silicon oxide to aluminum oxide in the ceramic powder of the coating material for forming the surface treatment layer 2a was changed in NO2, the results shown in Table 3 were obtained.
【００２３】[0023]
【表３】 [Table 3]
【００２４】（表３）から明かなように、ＮＯ１２〜１
４に示す ＳｉＯ2／Ａｌ2Ｏ3＝１〜１０のものは水垢付
着性および塗膜特性において効果が得られることが明ら
かになった。As is clear from Table 3, NO12 to NO1
It was found that those having SiO 2 / Al 2 O 3 = 1 to 10 shown in No. 4 had effects on the scale adhesion and coating film properties.
【００２５】次に、ＮＯ２において表面処理層２ａを形
成するコーティング材のフッ素樹脂の比率を変化させる
と（表４）に示すような結果が得られた。Next, when the ratio of the fluororesin in the coating material forming the surface treatment layer 2a was changed in NO2, the results as shown in Table 4 were obtained.
【００２６】[0026]
【表４】 [Table 4]
【００２７】（表４）から明かなように、ＮＯ２２〜２
５に示すフッ素樹脂の含有量が８０重量％以下のものは
水垢付着性および塗膜特性において効果が得られること
が明らかになった。As is clear from Table 4, NO22 to NO2
It was found that those having a fluororesin content of 80% by weight or less as shown in No. 5 had effects on the scale adhesion and coating film properties.
【００２８】さらに、表面処理層２ａを形成するコーテ
ィング材のセラミック粉末の添加量を変化させると（表
５）に示すような結果が得られた。なお、セラミック粉
末の添加量はフッ素樹脂の固形分に対して重量比で変化
させた。Further, when the addition amount of the ceramic powder of the coating material for forming the surface treatment layer 2a was changed, the results as shown in Table 5 were obtained. The addition amount of the ceramic powder was changed by a weight ratio with respect to the solid content of the fluororesin.
【００２９】[0029]
【表５】 [Table 5]
【００３０】（表５）から明かなように、ＮＯ３２〜３
７に示すセラミック粉末の添加量が０．５％〜３０％の
範囲のものは、水垢付着性および塗膜特性において効果
が得られることが明かになった。これは、セラミック粉
末が多すぎると塗膜の密着強度が低下し、逆にセラミッ
ク粉末が少なすぎると水垢付着防止効果が低下するため
である。As is clear from (Table 5), NO32 to NO3
It was found that those having an addition amount of the ceramic powder shown in No. 7 in the range of 0.5% to 30% had effects on the scale adhesion and coating film properties. This is because if the amount of the ceramic powder is too large, the adhesion strength of the coating film is reduced, and if the amount of the ceramic powder is too small, the effect of preventing scale adhesion is reduced.
【００３１】なお、本発明の実施例においてセラミック
粉末としてＦＥＰとＰＥＳを主成分とするフッ素塗料を
用いたが、特にこれに限定されるものではなく、他の４
フッ化エチレン樹脂やパーフルオロアルコキシ共重合樹
脂を用いたフッ素塗料でも同様の効果を有するものであ
る。また、セラミック粉末として天然鉱物の長石に粘土
を混ぜ焼結したものを粉砕し使用したが、これについて
も長石のみを粉砕したみのを用いても良い。さらに、天
然鉱物として長石以外に、石英斑石の一種である麦飯石
や、石英閃緑ひん岩といわれる医王石、もしくは希皇
石、さらに黒珪気石などでもよい。In the embodiment of the present invention, a fluorine paint containing FEP and PES as main components was used as the ceramic powder. However, the present invention is not limited to this.
The same effect can be obtained with a fluorine paint using a fluorinated ethylene resin or a perfluoroalkoxy copolymer resin. In addition, a ceramic powder obtained by mixing and sintering clay with feldspar of a natural mineral is used as a ceramic powder. Further, besides feldspar as natural minerals, barite, which is a kind of quartz porphyry, Ioishi, which is called quartz diorite, or rare stone, and black silicate stone may also be used.
【００３２】一方、粘土以外に天然鉱物の粉砕品に混ぜ
ることにより焼結性を高める物質であれば低融点ガラス
粉末などでもよい。また天然鉱物の粉砕品と粘土との混
合時の比率は６０／４０以外でも特に問題はない。On the other hand, a low melting point glass powder or the like may be used as long as it is a substance which enhances sinterability by being mixed with a pulverized natural mineral other than clay. In addition, there is no particular problem even if the ratio at the time of mixing the pulverized natural mineral and the clay is other than 60/40.
【００３３】（実施例２）実施例１と同様にしてコーテ
ィング材を準備し、電気湯沸器の内容器２の側面に処理
した。一方、内容器２の底面にはシリカからなる中空で
多孔性のマイクロカプセルを添加したフッ素塗料からな
るコーティング材を準備し、内容器の底面に処理し、内
容器の側面と底面とを塗り分けることにより表面処理層
２ａを設けた。Example 2 A coating material was prepared in the same manner as in Example 1, and was treated on the side of the inner container 2 of the electric water heater. On the other hand, on the bottom surface of the inner container 2, a coating material made of fluorine paint to which hollow and porous microcapsules made of silica is added is prepared, processed on the bottom surface of the inner container, and the side surface and the bottom surface of the inner container are separately painted. Thereby, the surface treatment layer 2a was provided.
【００３４】このようにして準備した本発明の電気湯沸
器との比較のため、内容器２の側面に従来のフッ素コー
トと呼ばれるコーティング材を処理し、内容器２の底面
に上述のシリカからなる中空で多孔性のマイクロカプセ
ルを添加したフッ素塗料からなるコーティング材を処理
した電気湯沸器について湯沸かしを繰り返し評価した。For comparison with the electric water heater of the present invention prepared in this way, the side surface of the inner container 2 is treated with a coating material called a conventional fluorine coat, and the bottom surface of the inner container 2 is made of the above-described silica. Water boiling was repeatedly evaluated for an electric water heater treated with a coating material made of a fluorine paint to which hollow porous microcapsules were added.
【００３５】この結果、従来の電気湯沸器では内容器２
全体に水垢が著しく付着した。また、湯沸かし音は初期
は静かであったが、使用回数が増すとともに徐々に大き
くなった。しかし、本発明の電気湯沸器では水垢の付着
はほとんどなく、湯沸かし音も静かで経時変化がほとん
どなく初期の静かさを維持した。As a result, in the conventional electric water heater, the inner container 2
The scale was remarkably adhered to the whole. The boiling water sound was quiet at the beginning, but gradually increased as the number of uses increased. However, in the electric water heater of the present invention, there was almost no adhesion of water scale, the boiling water sound was quiet, and there was almost no change over time, and the initial quietness was maintained.
【００３６】このように、内容器２の側面には塗料に酸
化ケイ素及び酸化アルミニウムを主成分とするセラミッ
ク粉末を添加したコーティング材を、また底面には塗料
に中空で多孔性のマイクロカプセルを添加したコーティ
ング材をそれぞれ処理し、表面処理層を形成させること
により水垢の付着防止と静音性を有し、かつ静音特性の
経時変化のない電気湯沸器が得られた。As described above, a coating material obtained by adding a ceramic powder containing silicon oxide and aluminum oxide as a main component to the coating material is provided on the side surface of the inner container 2, and a hollow porous microcapsule is added to the coating material on the bottom surface. Each of the coated materials was treated to form a surface treatment layer, thereby obtaining an electric water heater having prevention of scale adhesion and noise reduction, and no change in noise reduction characteristics with time.
【００３７】なお、本発明のコーテイング材の応用例に
ついては、上述の電気湯沸器以外に炊飯器やホットプレ
ート及び電磁調理器用鍋など種々の調理器にも可能であ
り、それぞれの調理器の調理面や加熱面を構成する基材
表面に処理することにより、上述の効果以外に水の浄化
作用や水の活性化による調理性能の向上など著しい効果
が得られる。The coating material of the present invention can be applied to various cookers such as a rice cooker, a hot plate and a pan for an electromagnetic cooker in addition to the above-described electric water heater. By treating the surface of the base material constituting the cooking surface or the heating surface, a remarkable effect such as improvement of cooking performance by water purification action and activation of water can be obtained in addition to the above effects.
【００３８】[0038]
【発明の効果】上記実施例から明かなように、請求項１
記載の発明によれば、酸化ケイ素及び酸化アルミニウム
を主成分とするセラミック粉末から水中にケイ素イオン
が溶出することにより水垢となって析出しやすいカルシ
ウムやマグネシウムのイオン状態が安定化し水垢が析出
しにくくなり水垢の付着防止効果が得られる。As is apparent from the above embodiment, the first aspect of the present invention is as follows.
According to the described invention, the ion state of calcium and magnesium, which is liable to be formed as scales by eluting silicon ions into water from ceramic powder containing silicon oxide and aluminum oxide as a main component, is stabilized, and scales are less likely to precipitate. An effect of preventing adhesion of scale can be obtained.
【００３９】また、請求項２記載の発明によれば、セラ
ミック粉末が全て天然鉱物を出発原料としているため飲
料水に使用しても安全性に優れたものであり安心して飲
料として用いることが可能となる。According to the second aspect of the present invention, since all of the ceramic powders use natural minerals as starting materials, they are excellent in safety even when used for drinking water, and can be used as drinks with confidence. Becomes
【００４０】また、請求項３記載の発明によれば、水垢
の付着防止効果が効率よく得ることが可能となる。Further, according to the third aspect of the invention, it is possible to efficiently obtain the effect of preventing the adhesion of scale.
【００４１】さらに、請求項４および５記載の発明によ
れば、塗料にフッ素樹脂が含有されるため水垢の付着防
止効果を助長する非粘着性を付与することが可能とな
る。Further, according to the inventions described in claims 4 and 5, since the paint contains a fluororesin, it is possible to impart non-adhesiveness which promotes the effect of preventing adhesion of scale.
【００４２】また、請求項６記載の発明によれば、セラ
ミック粉末の添加量を一定範囲に限定することにより水
垢の付着防止効果を最大限発揮しなおかつ塗膜特性を確
保することが可能となる。According to the invention of claim 6, by limiting the amount of the ceramic powder added to a certain range, it is possible to maximize the effect of preventing the adhesion of scale and to secure the characteristics of the coating film. .
【００４３】また、請求項７記載の発明によれば、これ
らコーティング材を電気湯沸器の内容器に表面処理層と
して形成させることにより、水垢の付着しにくい電気湯
沸器を提供することが可能となる。According to the seventh aspect of the present invention, by forming these coating materials as a surface treatment layer on an inner container of an electric water heater, it is possible to provide an electric water heater to which scale is less likely to adhere. It becomes possible.
【００４４】さらに、請求項８記載の発明によれば、内
容器の側面と底面を塗り分けることにより、水垢の付着
防止と静音性を有し、かつ静音特性の経時変化のない電
気湯沸器を提供することが可能となる。According to the eighth aspect of the present invention, the side wall and the bottom surface of the inner container are separately painted to prevent the adhesion of water scale and reduce noise, and the noise characteristic does not change with time. Can be provided.
【図１】本発明のコーティング材を施した電気湯沸器の
断面図FIG. 1 is a cross-sectional view of an electric water heater provided with a coating material of the present invention.
２、２２、３２ 内容器 ２ａ 表面処理層 2,22,32 Inner container 2a Surface treatment layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浦田 隆行 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayuki Urata 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd.
Claims (8)
を主成分とするセラミック粉末を添加したことを特徴と
するコーティング材。1. A coating material characterized by adding a ceramic powder containing silicon oxide and aluminum oxide as main components to a paint.
ルミニウムを主成分とする天然鉱物の粉砕品、もしくは
前記天然鉱物の粉砕品と少なくとも粘土を混合し焼成し
た焼結体の粉砕品のいずれかである請求項１記載のコー
ティング材。2. The ceramic powder may be a pulverized product of a natural mineral mainly composed of silicon oxide and aluminum oxide, or a pulverized product of a sintered body obtained by mixing a pulverized natural mineral and at least clay and firing. The coating material according to claim 1.
ミニウムの比率がＳｉＯ2／Ａｌ2Ｏ3＝１〜１０の範囲
にある請求項１記載のコーティング材。3. The coating material according to claim 1, wherein the ratio of silicon oxide to aluminum oxide in the ceramic powder is in the range of SiO 2 / Al 2 O 3 = 1-10.
徴とする請求項１記載のコーティング材。4. The coating material according to claim 1, wherein the paint contains a fluororesin.
あることを特徴とする請求項４記載のコーティング材。5. The coating material according to claim 4, wherein the fluorine resin content is 80% by weight or less.
の固形分に対して重量比で０．５％〜３０％の範囲であ
る請求項４記載のコーテイング材。6. The coating material according to claim 4, wherein the amount of the ceramic powder added ranges from 0.5% to 30% by weight based on the solid content of the fluororesin.
ーティング材を、内容器を構成する金属基材表面に被覆
し、表面処理層を設けたことを特徴とする電気湯沸器。7. An electric water heater comprising a coating material according to any one of claims 1 to 6 coated on the surface of a metal base material constituting an inner container, and a surface treatment layer provided thereon. .
ーティング材を、内容器の側面を構成する金属基材表面
に被覆し、塗料に中空で多孔性のマイクロカプセルを添
加したコーティング材を、内容器の底面を構成する金属
基材表面に被覆し、表面処理層を設けたことを特徴とす
る電気湯沸器。8. A coating obtained by coating the coating material according to claim 1 on a surface of a metal substrate constituting a side surface of an inner container, and adding a hollow porous microcapsule to a coating material. An electric water heater characterized in that a material is coated on a surface of a metal base material constituting a bottom surface of an inner container, and a surface treatment layer is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16920096A JPH107934A (en) | 1996-06-28 | 1996-06-28 | Coating material and electrical water heater coated therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16920096A JPH107934A (en) | 1996-06-28 | 1996-06-28 | Coating material and electrical water heater coated therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH107934A true JPH107934A (en) | 1998-01-13 |
Family
ID=15882071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16920096A Pending JPH107934A (en) | 1996-06-28 | 1996-06-28 | Coating material and electrical water heater coated therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH107934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405959C (en) * | 2002-05-23 | 2008-07-30 | 三菱电机株式会社 | Container for cooking |
-
1996
- 1996-06-28 JP JP16920096A patent/JPH107934A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405959C (en) * | 2002-05-23 | 2008-07-30 | 三菱电机株式会社 | Container for cooking |
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