JP2019086242A - Heating high-temperature member for heating cooker and cleaning method thereof - Google Patents
Heating high-temperature member for heating cooker and cleaning method thereofInfo
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Abstract
Description
本発明は、ガスコンロ、グリル、オーブン、ガスバーナー、乾燥焼成炉（例えば、ピザ窯）等の加熱調理を行う加熱調理機器と同時に用いられ、加熱時に直火が触れるなど加熱調理機器に加熱されて高温となる五徳、網、引出しプレートなどの金属部品、鍋や薬缶などの加熱調理器具、又はヒータ近接部品等の加熱調理機器用加熱高温部材に関する。 The present invention is used at the same time as a heating and cooking apparatus that performs heating and cooking such as a gas stove, grill, oven, gas burner, and a drying and baking furnace (for example, a pizza oven). The present invention relates to a heating high-temperature member for heating and cooking equipment such as a metal part such as gotoku, net, and a drawer plate, a heating cooker such as a pot and a medicine can, or a heater proximity part.
従来、ステンレス鋼は、厚さ数ｎｍ〜十数ｎｍ程度の極めて薄くて保護性の高い不動態皮膜を有しており、美麗な金属光沢を保ちながら優れた耐食性、耐熱性を呈することが知られている。このため、加熱時に直火が触れるなど加熱調理機器に加熱されて一部が４５０℃以上の高温となる加熱調理機器用の加熱高温部材としてステンレス鋼が用いられている。 Conventionally, stainless steel is known to have an extremely thin and highly protective passive film with a thickness of a few nm to about a dozen nm, and to exhibit excellent corrosion resistance and heat resistance while maintaining a beautiful metallic luster. It is done. For this reason, stainless steel is used as a heating high-temperature member for heating-cooking equipment which is heated by the heating-cooking equipment and is partially heated to a high temperature of 450 ° C. or more, for example, when direct heating is applied.
但し、このステンレス鋼は、高温環境下において、その表面が変色し着色する、いわゆるテンパーカラーが発生するという問題があった。このようなステンレス鋼の変色は、高温により当該ステンレス鋼が酸化して酸化物層が形成されることに基づくものである。この酸化物層の厚さが光の波長と一致する場合に、反射光が干渉して色の違いとして認知されるものである。このような酸化による変色が金属部材としてのステンレス鋼表面に現れると、外観や意匠性が急激に劣化した印象を与えてしまう。 However, this stainless steel has a problem that a so-called temper color occurs in which the surface is discolored and colored in a high temperature environment. Such discoloration of stainless steel is based on the fact that the high temperature causes the stainless steel to be oxidized to form an oxide layer. When the thickness of the oxide layer matches the wavelength of light, the reflected light interferes and is recognized as a color difference. When such discoloration due to oxidation appears on the surface of stainless steel as a metal member, it gives an impression that the appearance and the designability are rapidly deteriorated.
特に、ガスコンロの五徳、グリルやオーブンの網もしくは引出しプレート、ガスバーナーの先端部材など、加熱調理機器用の加熱高温部材は、購入時からそれほど日数が経過していないにも関わらず、直火に触れただけでこのような変色が現れてしまう場合があった。その場合、加熱高温部材は、使用し尽くされて急激に古くなった印象を与えてしまうという問題があった。 In particular, heating high-temperature members for cooking equipment such as gas stove vignettes, grills or oven nets or drawer plates, gas burner tip members, etc. There was a case where such a color change appeared only by touching. In such a case, there is a problem that the heating high temperature member is exhausted and gives an impression of rapid aging.
このため、従来、高温環境下においてステンレス鋼の酸化に基づく変色を防止することができる技術が研究されている。例えば、特許文献１には、表面にアルカリ珪酸塩皮膜を有するステンレス鋼材において、鋼素地とアルカリ珪酸塩皮膜の間に厚さ５〜１００ｎｍの反応層を介在させる技術が開示されている。この反応層を通じて、鋼材表面を覆うアルカリ珪酸塩皮膜への原子の拡散を抑制し、テンパーカラーの発生要因となるＣｒ−Ｆｅ−Ｏ系酸化物層の生成を食い止め、変色を防止することを期待したものである。 Therefore, conventionally, techniques capable of preventing discoloration due to oxidation of stainless steel in a high temperature environment have been studied. For example, Patent Document 1 discloses a technology in which a reaction layer having a thickness of 5 to 100 nm is interposed between a steel base and an alkali silicate film in a stainless steel material having an alkali silicate film on the surface. Through this reaction layer, it is expected to suppress the diffusion of atoms to the alkali silicate film covering the steel surface, stop the formation of the Cr-Fe-O oxide layer which causes tempering color, and prevent the color change. It is
また、特許文献２には、ステンレス鋼の表面にポリシラザンからなるケイ酸化合物膜を形成させる技術が開示されている。このケイ酸化合物は、酸素の拡散が遅い酸化物であることから、ステンレス鋼の表面近傍において生じる酸化の進行が抑制されることで、変色を防止することを期待したものである。 Patent Document 2 discloses a technique of forming a silicate compound film made of polysilazane on the surface of stainless steel. Since this silicate compound is an oxide in which the diffusion of oxygen is slow, it is expected to prevent discoloration by suppressing the progress of oxidation occurring near the surface of stainless steel.
そして、特許文献３には、窒化シリコン膜によるガスバリアフィルムの技術が開示されている。化学気相成長法により堆積された窒化シリコン膜は透明で高いガスバリア性を持つ。この特許文献３の開示技術は、ガスバリア性の高い透明膜を成膜する技術のため、金属上に成膜することで酸化防止の効果が期待できるとされている。 Patent Document 3 discloses a technology of a gas barrier film using a silicon nitride film. A silicon nitride film deposited by chemical vapor deposition is transparent and has high gas barrier properties. The technology disclosed in Patent Document 3 is considered to be expected to have an effect of preventing oxidation by forming a film on a metal because it is a technology for forming a transparent film having high gas barrier properties.
さらに、特許文献４には、アルミナ薄膜を酸化抑制被膜に用いる技術的思想が開示されている。アルミナ薄膜は優れた成膜性、緻密性、熱安定性、電気絶縁性などを併せ持ち、高温環境下においてステンレス鋼の酸化に基づく変色を防止することを期待したものである。 Further, Patent Document 4 discloses a technical idea in which an alumina thin film is used as an oxidation suppression film. The alumina thin film has excellent film formability, compactness, thermal stability, electrical insulation and the like, and is expected to prevent discoloration due to oxidation of stainless steel in a high temperature environment.
しかしながら、特許文献１〜４に開示された技術によれば、確かに高温下においてステンレス鋼の酸化に基づく変色を防止はできるものの、長時間の高温使用により徐々に基材の酸化が進み、特に７００℃を超えるような超高温域ではテンパーカラーに対しての耐久性が不足するという問題点があった。 However, although the techniques disclosed in Patent Documents 1 to 4 can certainly prevent discoloration due to oxidation of stainless steel under high temperature, long-term use of high temperature gradually promotes oxidation of the substrate, and in particular There has been a problem that the durability to the temper collar is insufficient in an ultra-high temperature range exceeding 700 ° C.
また、特許文献５、特許文献６には、ステンレス鋼中にＡｌを含有することで酸化を抑制する技術が開示されている。特許文献５及び６に記載の技術は、ステンレス中にＡｌを含有することでＡｌ由来の酸化被膜を形成することにより酸化を抑制するものである。しかし、その酸化抑制効果は高温での酸化による酸化増量や脆弱化を防止するに留まり、高温環境下で外観上の変色を防止するまでには至らないという問題があった。 Patent Document 5 and Patent Document 6 disclose techniques for suppressing oxidation by containing Al in stainless steel. The techniques described in Patent Documents 5 and 6 suppress oxidation by forming an oxide film derived from Al by containing Al in stainless steel. However, the oxidation suppressing effect is limited to preventing oxidation amount increase and weakening due to oxidation at high temperature, and there is a problem that it does not reach to prevent appearance discoloration in high temperature environment.
以上、特許文献１〜６に示したように、ステンレス鋼などの表面に形成される酸化物を抑制し、テンパーカラーが発生しないように防止する技術は種々提案されている。しかし、本願発明者らは、テンパーカラーが如何に発生するかを研究する過程において、発想を転換し、加熱調理機器のステンレス鋼などからなる加熱高温部材のテンパーカラーなどの変色やコビリ付き抑制するとともに簡単に清掃除去する技術を発案するに至った。 As described above, as shown in Patent Documents 1 to 6, various techniques for suppressing oxides formed on the surface of stainless steel or the like to prevent generation of temper colors have been proposed variously. However, in the process of studying how temper colors are generated, the inventors of the present application change their ideas to suppress discoloration or cracking such as temper colors of heating high temperature members made of stainless steel or the like of cooking devices. It came to devise a technology to clean and remove easily with it.
そこで、本発明は、前述した問題に鑑みて案出されたものであり、その目的とするところは、付着した有機物によるコビリ付きを長期に亘って防止することができるとともに、コビリ付きが発生した場合でも簡単に清掃除去することができる加熱調理機器用加熱高温部材及びその清掃方法を提供することにある。 Therefore, the present invention has been made in view of the above-mentioned problems, and the purpose of the present invention is to prevent the fouling due to the deposited organic matter over a long period of time, and the fouling occurs. An object of the present invention is to provide a heating high-temperature member for a cooking appliance which can be easily cleaned and removed even in the case and a cleaning method thereof.
第１発明に係る加熱調理機器用加熱高温部材は、加熱調理を行う加熱調理機器と同時に用いられ、前記加熱調理機器に加熱されて一部が４５０℃以上の高温となる加熱調理機器用加熱高温部材であって、前記加熱調理機器で下部接触部及びその近傍を除く表面全域が、調理時又は清掃時に、少なくとも一時的に前記加熱調理機器で４５０℃以上に加熱可能に構成されていることを特徴とする。 The heating high-temperature member for cooking equipment according to the first invention is used simultaneously with the heating-cooking equipment for cooking, and is heated by the heating-cooking equipment to become a high temperature partially heating to 450 ° C. or higher. It is a member, and the entire surface area excluding the lower contact portion and the vicinity thereof in the heating and cooking apparatus can be heated at least temporarily to 450 ° C. or more by the heating and cooking apparatus at the time of cooking or cleaning. It features.
第２発明に係る加熱調理機器用加熱高温部材は、第１発明において、表面全域が、調理時に、少なくとも一時的に前記加熱調理機器で４５０℃以上に加熱可能に構成されていることを特徴とする。 The heating high-temperature member for cooking equipment according to the second invention is characterized in that, in the first invention, the entire surface is configured to be capable of being heated at least temporarily to 450 ° C. or more by the cooking appliance at the time of cooking. Do.
第３発明に係る加熱調理機器用加熱高温部材は、加熱調理を行う加熱調理機器と同時に用いられ、前記加熱調理機器に加熱されて一部が４５０℃以上の高温に加熱可能な加熱調理機器用加熱高温部材であって、４５０℃以上の高温となる高温域と２００℃以上４５０℃未満となる中温域、又は前記中温域が存在し、清掃時に前記中温域を前記加熱調理機器で４５０℃以上に加熱可能に構成されていることを特徴とする。 The heating high-temperature member for heating and cooking equipment according to the third invention is used simultaneously with the heating and cooking equipment for heating and cooking, and for heating and cooking equipment that can be partially heated to a high temperature of 450.degree. It is a heating high temperature member, and there is a high temperature zone where high temperature of 450 ° C. or higher and an intermediate temperature zone where 200 ° C. or higher but less than 450 ° C., or the intermediate temperature zone exists, It is characterized in that it is configured to be heatable.
第４発明に係る加熱調理機器用加熱高温部材は、第３発明において、前記加熱調理機器への設置方法を変更することで、前記中温域を前記加熱調理機器で４５０℃以上に加熱可能に構成されていることを特徴とする。 The heating high-temperature member for the cooking device according to the fourth invention is, in the third invention, configured to be capable of heating the middle temperature range to 450 ° C. or more by the cooking device by changing the installation method to the cooking device. It is characterized by being.
第５発明に係る加熱調理機器用加熱高温部材は、第１発明ないし第４発明の何れかの発明において、最表面に、ケイ素化合物、アルミニウム化合物、ジルコニウム化合物の何れかを含有する層を有することを特徴とする。 In the invention according to any one of the first to fourth inventions, the heating high-temperature member for a cooking appliance according to the fifth invention has a layer containing any of a silicon compound, an aluminum compound and a zirconium compound on the outermost surface. It is characterized by
第６発明に係る加熱調理機器用加熱高温部材は、第１発明ないし第５発明の何れかの発明において、ステンレス基材、鉄基材、アルミニウム基材の何れかの基材の上に、ケイ素化合物、アルミニウム化合物、ジルコニウム化合物の単層、又はアルミニウム化合物を含有する層の下層に、さらにケイ素化合物を含有する層からなるコーティング層が形成されていることを特徴とする。 The heating high-temperature member for heating and cooking apparatus according to a sixth aspect of the present invention is the silicon substrate according to any of the first to fifth aspects of the present invention, wherein any one of a stainless steel substrate, an iron substrate and an aluminum substrate is used. A coating layer comprising a layer containing a silicon compound is further formed under the compound, the aluminum compound, the single layer of the zirconium compound, or the layer containing the aluminum compound.
第７発明に係る加熱調理機器用加熱高温部材は、第５発明又は第６発明において、前記ケイ素化合物としてケイ酸化合物、前記アルミニウム化合物として酸化アルミニウム化合物、前記ジルコニウム化合物として酸化ジルコニウム化合物の何れかを含有することを特徴とする。 In the heating high-temperature member for cooking equipment according to the seventh invention, in the fifth invention or the sixth invention, any one of a silicic acid compound as the silicon compound, an aluminum oxide compound as the aluminum compound, and a zirconium oxide compound as the zirconium compound It is characterized by containing.
第８発明に係る加熱高温部材の清掃方法は、加熱調理を行う加熱調理機器と同時に用いられ、前記加熱調理機器に加熱されて一部が４５０℃以上の高温となる加熱高温部材のコビリ付きを除去して清掃する加熱調理機器用加熱高温部材の清掃方法であって、調理時に２００℃以上４５０℃未満となる中温域にコビリ付きが発生した場合に、清掃時に、コビリ付きが発生した部分を４５０℃以上に加熱することによりコビリ付きを除去して清掃することを特徴とする。 The cleaning method of the heating high temperature member according to the eighth aspect of the present invention is used simultaneously with the heating cooking device for performing heating and cooking, and the heating cooking device heats the part to become a high temperature of 450 ° C. or higher. A cleaning method of a heating high-temperature member for heating and cooking equipment which is removed and cleaned, and when a crush occurs in an intermediate temperature range which becomes 200 ° C. or more and less than 450 ° C. during cooking, a portion having clumps formed during cleaning is By heating to 450 ° C. or more, it is characterized in that the sticking is removed and cleaning is performed.
第１発明〜第７発明によれば、付着物がコビリ付くことを防ぐことができる。 According to the first to seventh aspects of the invention, it is possible to prevent the attachment from colliding.
特に、第２発明によれば、表面全域を加熱調理機器で４５０℃以上に加熱することができるので、加熱高温部材に有機物が付着してコビリ付いた場合であっても、４５０℃以上の高温で気化させてしまうため表面全域に亘ってコビリ付きが発生することがない。 In particular, according to the second aspect of the present invention, the entire surface can be heated to 450 ° C. or higher by the cooking device, so even if organic matter adheres to the heating high temperature member and becomes attached, the high temperature of 450 ° C. or higher No vaporization occurs over the entire surface of the surface because it is vaporized.
特に、第３発明及び第４発明によれば、清掃時に中温域を加熱調理機器で４５０℃以上に加熱可能に構成されているので、中温域に発生するコビリ付きを簡単に除去清掃することができる。 In particular, according to the third and fourth inventions, since the medium temperature range can be heated to 450 ° C. or higher by the heating and cooking apparatus at the time of cleaning, it is possible to easily remove and remove clumps occurring in the medium temperature range. it can.
特に、第５発明ないし第７発明によれば、ケイ素化合物、アルミニウム化合物、ジルコニウム化合物のガスバリア性により加熱高温部材の酸化を抑制することができる。 In particular, according to the fifth to seventh inventions, the gas barrier properties of the silicon compound, the aluminum compound and the zirconium compound can suppress the oxidation of the heating high temperature member.
特に、第７発明によれば、ガスバリア性に特に優れたコーティング層のケイ酸化合物、酸化アルミニウム化合物、又は酸化ジルコニウム化合物により、加熱高温部材の基材の酸化を確実に抑制することができる。 In particular, according to the seventh invention, the oxidation of the substrate of the heating high-temperature member can be reliably suppressed by the silicate compound, aluminum oxide compound or zirconium oxide compound of the coating layer which is particularly excellent in the gas barrier property.
第８発明によれば、コビリ付きが発生した部分を４５０℃以上に加熱するという極めて簡単な方法により、利用者の手を煩わすことなく、短時間で加熱高温部材のコビリ付きを取り除いて清掃することができる。 According to the eighth aspect of the present invention, by a very simple method of heating the portion where crush occurs to 450 ° C. or higher, crush of the heating high temperature member is removed and cleaned in a short time without bothering the user. be able to.
以下、本発明を適用した加熱調理機器用加熱高温部材を実施するための形態について、図面を参照しながら詳細に説明する。 EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the heating high-temperature member for cooking devices to which this invention is applied is demonstrated in detail, referring drawings.
［第１実施形態］
先ず、図１〜図３を用いて、本発明の第１実施形態に係る加熱調理機器用加熱高温部材について、ガスコンロＧに設置する五徳を例示して説明する。図１は、本発明の第１実施形態に係る加熱調理機器用加熱高温部材である五徳１を示す斜視図であり、図２は、五徳１を示す側面図である。
First Embodiment
First, with reference to FIG. 1 to FIG. 3, Gotoku installed on the gas stove G will be described as an example for a heating high-temperature member for a cooking device according to a first embodiment of the present invention. FIG. 1 is a perspective view showing Gotoku 1 which is a heating high-temperature member for a cooking device according to a first embodiment of the present invention, and FIG. 2 is a side view showing Goto 1.
本実施形態に係る加熱調理機器用加熱高温部材である五徳１は、システムキッチンなどに備え付けられたガスコンロＧに載置されてガスコンロＧと同時に使用される部材である。この五徳１は、図１、図２に示すように、ガスコンロＧの周りに載置されるリング状のリング部２と、このリング部２に溶接されて取り付けられた６枚の爪部３など、から構成され、爪部３の上に鍋や薬缶などの加熱調理器具（図示せず）を載置する機能を有している。 Gotoku 1 which is a heating high temperature member for cooking devices according to the present embodiment is a member which is placed on a gas stove G provided in a system kitchen or the like and used simultaneously with the gas stove G. As shown in FIG. 1 and FIG. 2, this Vitoku 1 includes a ring-shaped ring portion 2 placed around the gas stove G, and six claw portions 3 welded and attached to the ring portion 2, etc. , And has a function of placing a heating cooker (not shown) such as a pot or a medicine can on the claw portion 3.
この爪部３は、図２に示すように、リング部２から上方に立ち上がる立上り部３０と、立上り部３０の上端から外側へ突出する上辺部３１と、からなる側面視逆Ｌ字状の板状の部位である。この五徳１は、爪部３の一部が、加熱調理機器であるガスコンロＧの炎に直接接して炙られ、７００℃を超える高温環境下に置かれる加熱高温部材である。 As shown in FIG. 2, the claw portion 3 is a plate having a reverse L shape in a side view as viewed from the side, and includes a rising portion 30 rising upward from the ring portion 2 and an upper side portion 31 protruding outward from the upper end of the rising portion 30. Part of the This Gotoku 1 is a heating high temperature member which is put in direct contact with the flame of the gas stove G which is a cooking device, and is put in a high temperature environment exceeding 700 ° C.
次に、図３を用いて、五徳１の基材及びコーティング層について説明する。図３は、図２の五徳１の爪部３をＡ−Ａ線の鉛直面で切断した状態を示すＡ−Ａ線拡大断面図である。図３に示すように、本実施形態に係る五徳１は、アルミニウムを含有するステンレス鋼からなる基材１０と、基材１０の表面にコーティング層１１が形成された、変色防止の表面処理が施された金属部材である。 Next, referring to FIG. 3, the substrate and coating layer of Gotoku 1 will be described. FIG. 3 is an enlarged cross-sectional view taken along the line A-A showing a state in which the claw portion 3 of the Vintoku 1 of FIG. 2 is cut along a vertical plane of the line A-A. As shown in FIG. 3, according to the present embodiment, Gotoku 1 is provided with a base material 10 made of aluminum-containing stainless steel and a coating layer 11 formed on the surface of the base material 10, which is subjected to surface treatment for preventing discoloration. Metal parts.
基材１０のステンレス鋼全重量に対するアルミニウムの含有量は、例えば、１〜１２重量％とされていることが好ましく、２〜４重量％とされていることがさらに好ましい。勿論、本発明に係る五徳は、アルミニウムを含有するものに限られるものではなく、ステンレス鋼でなく他の金属でも構わない。但し、ステンレス鋼は、添加されたＣｒが空気中の酸素と結合することで厚さ数ｎｍ〜十数ｎｍ程度の極めて薄い保護性の高い不動態皮膜を形成するため、基材１０をステンレス鋼から構成することにより優れた耐食性、耐熱性を呈するため好ましい。 The content of aluminum relative to the total weight of stainless steel of the base 10 is preferably, for example, 1 to 12% by weight, and more preferably 2 to 4% by weight. Of course, the five virtues according to the present invention are not limited to those containing aluminum, and may be other metals instead of stainless steel. However, stainless steel is a stainless steel as the base material 10, since the added Cr bonds with oxygen in the air to form an extremely thin protective passivation film having a thickness of several nm to about several tens of nm. It is preferable because it exhibits excellent corrosion resistance and heat resistance by being composed of
コーティング層１１は、ケイ素化合物、アルミニウム化合物、ジルコニウム化合物の何れか１種類を含有する単層で構成されている。ケイ素化合物、アルミニウム化合物、ジルコニウム化合物のガスバリア性により、酸化変色であるテンパーカラーの発生を防止することができるからである。 The coating layer 11 is composed of a single layer containing any one of a silicon compound, an aluminum compound and a zirconium compound. This is because the gas barrier properties of the silicon compound, the aluminum compound and the zirconium compound can prevent the generation of the temper color which is an oxidative discoloration.
ケイ素化合物としては、脱水縮合したシリコンテトラエトキシド、ポリシラザン、シロキサン、ケイ酸塩、窒化ケイ素、炭化ケイ素など、が挙げられる。また、ガスバリア性が高いことから、コーティング層１１に用いるケイ素化合物としては、濃度１０％の平均直径２５ｎｍ以上のシリカが主体となった結晶分散液が好ましい。勿論、ケイ素（Ｓｉ）の化合物であればよく、例示した物質に限定されないことは云うまでもない。 Examples of the silicon compound include dehydrated and condensed silicon tetraethoxide, polysilazane, siloxane, silicate, silicon nitride, silicon carbide and the like. In addition, since the gas barrier property is high, as the silicon compound used for the coating layer 11, a crystal dispersion liquid mainly composed of silica with an average diameter of 25 nm or more at a concentration of 10% is preferable. Of course, it is needless to say that the compound is not limited to the exemplified materials as long as it is a compound of silicon (Si).
アルミニウム化合物としては、酸化アルミニウム（Ａｌ2Ｏ3）、窒化アルミニウム（ＡｌＮ）、ムライト（アルミノケイ酸塩鉱物：Ａｌ6Ｏ13Ｓｉ2）、スピネル（尖晶石：ＭｇＡｌ2Ｏ4）などが挙げられる。また、ガスバリア性が高いことから、コーティング層１１に用いるアルミニウム化合物としては、濃度３％、平均直径２００ｎｍ以上の水酸化アルミニウムナノ粒子分散液が好ましい。勿論、アルミニウムの化合物であればよく、例示した物質に限定されないことは云うまでもない。 Examples of aluminum compounds include aluminum oxide (Al 2 O 3 ), aluminum nitride (AlN), mullite (aluminosilicate mineral: Al 6 O 13 Si 2 ), spinel (spikystone: MgAl 2 O 4 ), etc. . Moreover, as the aluminum compound used for the coating layer 11, an aluminum hydroxide nanoparticle dispersion liquid having a concentration of 3% and an average diameter of 200 nm or more is preferable because the gas barrier property is high. Of course, it is needless to say that the material is not limited to the exemplified materials as long as it is a compound of aluminum.
ジルコニウム化合物の例としては、酸化ジルコニウム（ジルコニア：ＺｒＯ2）、酸化物を添加した安定化ジルコニア、ジルコン（ヒヤシンス鉱：ＺｒＳｉＯ4）などが挙げられる。また、ガスバリア性が高いことから、コーティング層１１に用いるジルコニウム化合物としては、平均直径１０ｎｍ以上のジルコニウムナノ粒子分散液が好ましい。勿論、ジルコニウムの化合物であればよく、例示した物質に限定されないことは云うまでもない。 Examples of the zirconium compound include zirconium oxide (zirconia: ZrO 2 ), stabilized zirconia added with an oxide, and zircon (hyacinthite: ZrSiO 4 ). Moreover, as the zirconium compound used for the coating layer 11, a zirconium nanoparticle dispersion liquid having an average diameter of 10 nm or more is preferable because the gas barrier property is high. It goes without saying that the substance is not limited to the exemplified substances as long as it is a compound of zirconium.
また、コーティング層１１は、前述の物質のうち透明である物質が選択されることが好ましい。ここで透明とは、基材１０の素材の金属光沢までも視認可能に反射光を透過する性質を指している。このため、コーティング層１１により、基材１０の酸化を防止しつつ被覆されている基材１０の美麗な金属光沢を視認可能となり、意匠性が極めて優れた五徳１とすることができる。 Moreover, it is preferable that the substance which is transparent among the above-mentioned substances is selected for the coating layer 11. Here, the term "transparent" refers to the property of transmitting the reflected light so that the metallic gloss of the material of the substrate 10 is visible. For this reason, the coating layer 11 makes it possible to visually recognize the beautiful metallic luster of the substrate 10 coated while preventing the oxidation of the substrate 10, and can be made to be Vitoku 1 with extremely excellent designability.
なお、金属製の基材１０の表面に、コーティング層１１が形成されているものを例示して説明したが、図３の基材１０がなく、全断面がケイ素化合物、アルミニウム化合物、ジルコニウム化合物の何れか１種類を含有する単層からなるものでも構わない。 In addition, although the thing in which the coating layer 11 is formed in the surface of the metal base materials 10 was illustrated and demonstrated, there is no base material 10 of FIG. 3, but the whole cross section shows a silicon compound, an aluminum compound, and a zirconium compound. It may be composed of a single layer containing any one kind.
＜汚れと炭化物のコビリ付き防止の原理＞
次に、図４〜図８を用いて、本発明に係る加熱調理機器用加熱高温部材の汚れと炭化物のコビリ付き防止の原理（メカニズム）について説明する。図４は、現行の五徳を１年間実使用してモニターした結果を示す写真である。
<Principle of preventing dirt and carbides from sticking>
Next, the principle (mechanism) of the prevention of soiling of the heating high-temperature member for cooking devices according to the present invention and the prevention of cracking of carbides according to the present invention will be described using FIGS. 4 to 8. FIG. 4 is a photograph showing the results of monitoring using the current Gotoku for one year.
現行の五徳１#は、前述の五徳１と略同等の素材から構成されるものであり、相違する点は、前述のリング部２に側面視コの字状の爪部５が取り付けられている点である（図５参照）。このため、同一構成は同一符号を付し、詳細な説明は省略する。なお、現行の五徳１#とは、試作品として完成し、実用化へ向けた最終段階の耐久テスト等の実証実験を行っている途中の五徳であり、既に販売等、実施されているものではない。つまり、現行の五徳１#は、本発明の開発直前のもので、本発明に係る五徳と比較するために提示している五徳である。 The current Gotoku 1 # is made of a material substantially equivalent to the above Gotoku 1 and the difference is that the above-mentioned ring part 2 has a U-shaped claw 5 attached to the side view Point (see FIG. 5). For this reason, the same configuration is given the same reference numeral, and the detailed description is omitted. The current Gotoku 1 # is Gotoku, which has been completed as a prototype, and is undergoing demonstration tests such as the endurance test at the final stage for practical use. Absent. That is, the current Gotoku 1 # is the Gotoku presented just prior to the development of the invention and for comparison with the Gotoku according to the invention.
図４に示すように、本願発明者らは、現行の五徳１#を１年間実使用してモニターした結果、コビリ付きが一定の範囲のみに発生することに着目した。そして、五徳１#のコビリ付きが現れる位置と温度の関係を調査した。図５は、現行の五徳１#のコビリ付きの発生位置を示す図であり、図６は、コビリ付きの発生と調理時の温度の関係を示す図である。なお、１年間実使用は、ガスコンロを強火で使用してモニターしたものである。 As shown in FIG. 4, the present inventors focused on the fact that caking occurs only in a certain range as a result of monitoring using the current Gotoku 1 # for one year. Then, I investigated the relationship between temperature and position where Gotoku 1 # appears. FIG. 5 is a view showing the occurrence position of the current Vitoku 1 # with a crush, and FIG. 6 is a view showing the relationship between the occurrence of the crush and the temperature at the time of cooking. The actual use for one year is monitored by using a gas stove with high heat.
図５、図６に示すように、現行の五徳１#の爪部５の下部５０は、調理時にガスコンロＧに火を付けた場合でも２００℃未満となる低温域Ｘ１となっていた。このため、有機物が付着して長期に亘ってこの温度（低温）に晒されても、付着した付着有機物が炭化しなかった。つまり、図４、図５に示すように、下部５０には、コビリ付きが発生せず、汚れ（有機物）は、濡れたウエスで簡単に拭き取って除去可能であった。 As shown in FIGS. 5 and 6, the lower portion 50 of the claw portion 5 of the current Vitoku 1 # is in the low temperature range X1 which is less than 200 ° C. even when the gas stove G is lit at the time of cooking. Therefore, even if the organic matter adheres and is exposed to this temperature (low temperature) for a long time, the adhered adherent organic matter is not carbonized. That is, as shown in FIG. 4 and FIG. 5, no caking occurred in the lower portion 50, and the dirt (organic matter) could be easily wiped off with a wet waste.
また、図５、図６に示すように、現行の五徳１#の爪部５の炎接触近接部５１は、調理時にガスコンロＧに火を付けた場合に２００℃以上４５０℃未満となる中温域Ｘ２となっていた。このため、有機物が付着して長期に亘ってこの温度（中温）に晒されると、付着有機物が炭化してコビリ付いた。但し、現行の五徳１#でも、炭化した付着有機物を、中性洗剤等を使って擦れば、一部除去可能であり、酷いコビリ付きは、クレジットカードなど硬い樹脂カードで擦れば除去できた。また、現行の五徳１#は、背景技術で述べた特許文献１〜６に記載の従来の五徳と比べて、極めて高い耐変色性、耐変質性、耐変形性（これら全部の性質を含めて耐熱性という、以下同じ）を有する。 Also, as shown in FIG. 5 and FIG. 6, the flame contact proximity part 51 of the claw part 5 of the current Gotoku 1 # is a medium temperature region which becomes 200 ° C. or more and less than 450 ° C. when the gas stove G is lit during cooking. It was X2. For this reason, when the organic matter adhered and was exposed to this temperature (medium temperature) for a long period of time, the adhered organic matter was carbonized and rubbed. However, even the current Gotoku 1 # could be partially removed by rubbing the carbonized attached organic matter with a neutral detergent etc., and the severe crush could be removed by rubbing it with a hard resin card such as a credit card. In addition, the current Gotoku 1 # has extremely high color fastness, deterioration resistance, deformation resistance (including all of these properties) as compared to the conventional Gotoku described in Patent Documents 1 to 6 described in the background art. Heat resistance, hereinafter the same).
なお、この中温域における炭化物のコビリ付きは、吹きこぼれによるとは限られず、中温域Ｘ２になると油煙などの透明な付着物のコビリ付きが発生するからと考えられる。 In addition, it is thought that the carbide cracking in the middle temperature range is not limited to the boil-over, and in the middle temperature range X2, the cracking of the transparent deposit such as oil smoke occurs.
そして、図５、図６に示すように、現行の五徳１#の爪部５の炎接触部５２は、調理時にガスコンロＧに火を付けた場合に４５０℃以上となる高温域Ｘ３であり、一般的に、４５０℃以上８５０℃未満となる温度領域となっていた。この高温域Ｘ３となる炎接触部５２には、炭化物のコビリ付きは発生しなかった。 And, as shown in FIG. 5 and FIG. 6, the flame contact part 52 of the claw part 5 of the current Gotoku 1 # is a high temperature zone X3 which becomes 450 ° C. or more when the gas stove G is lit at the time of cooking In general, the temperature range is 450 ° C. or more and less than 850 ° C. In the flame contact portion 52 which is in the high temperature region X3, no carbide chattering occurs.
コビリ付き等が発生しなかった理由は、炭化した有機物が二酸化炭素（ＣＯ2）となって気化したからと考えられる。また、特許文献１〜６に記載の従来の五徳と比べて、現行の五徳１#が、コーティング層１１等のガスバリア性等により、直火が触れる７００℃以上もの高温環境下に長期に亘って晒された場合であっても、高い耐熱性を示し、テンパーカラーやコビリ付きの発生等を防止することができるからと考えられる。 It is considered that the reason why no cracking or the like occurs is that the carbonized organic matter is vaporized as carbon dioxide (CO 2 ). Moreover, compared with the conventional Gotoku described in Patent Documents 1 to 6, the present Gotoku 1 # extends for a long time in a high temperature environment as high as 700 ° C. or more to which direct fire touches due to the gas barrier properties of the coating layer 11 and the like. Even if it is exposed, it is considered that it exhibits high heat resistance and can prevent the occurrence of temper color and entanglement.
本願発明者らは、これらの見地を踏まえ、現行の五徳１#の基材１０とコーティング層１１の組み合わせによる変色防止の表面処理の極めて高い耐熱性を活用し、汚れが表面に付着しないようにするという従来の発想を転換したものである。即ち、五徳１が極めて高い耐熱性を有することから、五徳１の爪部３の略全域を調理時（加熱時）又は清掃時に４５０℃以上となる高温域Ｘ３にすることができれば、使用開始時の初期状態を極めて長期に亘って維持し、清掃手間の極端に少ない五徳ができることを見出したものである。 Based on these points of view, the inventors of the present invention take advantage of the extremely high heat resistance of the surface treatment for preventing discoloration by the combination of the base material 10 of the current Vittoku 1 # and the coating layer 11 so that dirt does not adhere to the surface. Is a transformation of the conventional idea of That is, since Gotoku 1 has extremely high heat resistance, if it can be made high temperature zone X3 which becomes 450 ° C or more at the time of cooking (at the time of heating) or cleaning, almost the whole area of nail part 3 of Gotoku 1 It has been found that the initial condition of the present invention can be maintained for a very long time, and that there can be five virtues with extremely little cleaning work.
図７は、前述の第１実施形態に係る五徳１の調理時（加熱時）における爪部３の表面温度を測定した測定結果を示す図であり、図８は、前述の現行の五徳１#の調理時（加熱時）の爪部５の表面温度を測定した測定結果を示す図である。図７に示すように、第１実施形態に係る五徳１は、爪部３のガスコンロＧとの下部接触部（リング部２）、及びその近傍となる立上り部３０の下部だけが、ガスコンロＧに火を付けた加熱調理時に２９０℃に達する中温域Ｘ２となるものの、爪部３の大部分は、少なくとも一時的に高温域Ｘ３とすることができる。このため、炭化した有機物が二酸化炭素（ＣＯ2）となって気化し、長期に亘って、お手入れ不要で、酸化物であるテンパーカラーやコビリ付きが発生することがないと考えられる。 Figure 7 is a graph showing a measurement result of measuring the surface temperature of the claw portion 3 during cooking trivet 1 according to the first embodiment described above (when heated), FIG. 8, the current trivet 1 # of the foregoing It is a figure which shows the measurement result which measured the surface temperature of the nail | claw part 5 at the time of cooking (at the time of heating) of (a). As shown in FIG. 7, only the lower contact portion (ring portion 2) of the claw portion 3 with the gas stove G and the lower portion of the rising portion 30 in the vicinity are the gas stove G as shown in FIG. Although the medium temperature zone X2 reaches 290 ° C. at the time of cooking with lighting, most of the claws 3 can be at least temporarily set to the high temperature zone X3. Therefore, it is considered that carbonized organic matter is vaporized as carbon dioxide (CO 2 ), and maintenance is unnecessary for a long period of time, and it is considered that the oxide temper color and cracking do not occur.
一方、図８に示すように、現行の五徳１#は、炎接触部５２を離れた炎接触近接部５１に入ると直ぐに２３０℃に下がり、下部５０は、表面全域が２００℃以下の低温域Ｘ１となっている。このため、前述のように、中温域Ｘ２に炭化物が付着したものと推測される。 On the other hand, as shown in FIG. 8, the current Vitoku 1 # drops immediately to 230 ° C. as it enters the flame contact proximity portion 51 away from the flame contact portion 52, and the lower portion 50 has a low temperature range of 200 ° C. or less over the entire surface. It is X1. For this reason, as described above, it is presumed that the carbides adhere to the middle temperature region X2.
両者の違いは、五徳１の爪部３は、炎接触部となる部分の質量（体積）が大きいのに対して、五徳１#の炎接触部５２は相対的に質量（体積）が小さく、五徳１の方が炎接触部の熱をより短時間に全体に伝熱することができるからと考えられる。よって、五徳１のように、炎接触部となる部分の質量（体積）を大きくすることにより、調理時（加熱時）又は清掃時において、ガスコンロＧの強火で炙っただけで、短時間で爪部３の立上り部３０の下部を除く表面全域を高温域Ｘ３とすることができる。 The difference between the two is that while the claw portion 3 of Gotoku 1 has a large mass (volume) of the portion to be the flame contact portion, the flame contact part 52 of Gotoku 1 # has a relatively small mass (volume), It is considered that Gotoku 1 can transfer the heat of the flame contact part to the whole in a shorter time. Therefore, as in Gotoku 1, by increasing the mass (volume) of the part that will be the flame contact part, it is possible to cook the nails in a short time by cooking with heating (at the time of heating) or cleaning. The entire surface except for the lower portion of the rising portion 30 of the portion 3 can be set as the high temperature region X3.
以上説明した第１実施形態に係る加熱調理機器用加熱高温部材である五徳１によれば、炎接触部となる部分の体積を大きくすることにより、清掃時又は調理時において、ガスコンロＧの強火で炙っただけで、短時間で爪部３のガスコンロＧとの下部接触部（リング部２）、及びその近傍（中温域Ｘ２の部分）を除く表面全域を高温域Ｘ３とすることができる。このため、五徳１の酸化変色を防止しつつ、付着物がコビリ付くこともなく、且つ、清掃手間を掛けることなく五徳１の新品時の美麗な光沢を保つことができる。 According to Gotoku 1 which is a heating high-temperature member for a cooking device according to the first embodiment described above, by increasing the volume of the portion to be a flame contact portion, the gas stove G is heated at high fire during cleaning or cooking. It is possible to set the entire surface area excluding the lower contact portion (ring portion 2) of the claw portion 3 with the gas stove G and the vicinity thereof (portion of the intermediate temperature range X2) as the high temperature range X3 in a short time. For this reason, it is possible to prevent the oxidation and discoloration of Gotoku 1 and to keep the beautiful gloss of Gotoku 1 when it is a new article without causing adhesions and without taking time for cleaning.
以下、前述の五徳１の基材とコーティング層の組み合わせの効果を確認するために行った実験的検証について詳細に説明をする。 Hereinafter, experimental verification conducted to confirm the effect of the combination of the substrate and the coating layer of the aforementioned Vantoku 1 will be described in detail.
この実験的検証においては、先ず表１、表２に示すように複数種のサンプルを作成し、水鍋変色試験及び変色防止耐久性向上効果の確認を行った。 In this experimental verification, first, a plurality of samples were prepared as shown in Table 1 and Table 2, and a water pan color change test and a color change prevention durability improvement effect were confirmed.
サンプルは、金属製の基材のみで構成し、その表面に何のコーティング層も積層させない比較例１〜４と、アルミニウムを含まない基材上に前述した成分を含有する単層のコーティング層を被覆させた本発明例１〜７と、アルミニウムを含む基材上に前述した成分を含有する単層のコーティング層を被覆させた本発明例８〜１４と、アルミニウムを含まない基材上に前述した成分を含有するコーティング層を２層に亘り積層させた本発明例１５と、アルミニウムを含む基材上に前述した成分を含有するコーティング層を２層に亘り積層させた本発明例１６と、からなる。 The samples are composed only of a metal substrate, and Comparative Examples 1 to 4 in which no coating layer is laminated on the surface, and a single-layer coating layer containing the above-mentioned components on a substrate not containing aluminum. Inventive Examples 1 to 7 coated, Inventive Examples 8 to 14 coated with a single layer coating layer containing the foregoing components on an aluminum containing substrate, and the foregoing on an aluminum free substrate Inventive Example 15 in which two coating layers containing the above components are laminated, and Inventive Example 16 in which two coating layers containing the foregoing components are laminated on a substrate containing aluminum. It consists of
比較例１，２、本発明例１，２については、基材として、アルミニウムを含有しないステンレス鋼（ＳＵＳ３０４）、アルミニウムを含有しないステンレス鋼（ＳＵＳ４３０）を使用した。また、本発明例８，１０，１１，１３，１６、比較例３については基材としてステンレス鋼全重量に対して４重量％のアルミニウムを含有するステンレス鋼（１５Ｃｒ−４Ａｌ−ＬＣ,Ｎ）を使用し、本発明例９，１２，１４、比較例４については基材としてステンレス鋼全重量に対して２重量％のアルミニウムを含有するステンレス鋼（１８Ｃｒ−２Ａｌ−Ｔｉ）を使用している。 In Comparative Examples 1 and 2 and Inventive Examples 1 and 2, stainless steel (SUS 304) containing no aluminum and stainless steel (SUS 430) containing no aluminum were used as the substrate. In the invention examples 8, 10, 11, 13, 16 and the comparative example 3, a stainless steel (15Cr-4Al-LC, N) containing 4% by weight of aluminum based on the total weight of the stainless steel as a base material is used. In the invention examples 9, 12 and 14 and the comparative example 4, a stainless steel (18Cr-2Al-Ti) containing 2% by weight of aluminum based on the total weight of the stainless steel is used.
本発明例１，２，８，９では、コーティング層としてケイ素化合物主体膜Ａを生成するべく、その前駆体として濃度１０％の平均直径２５ｎｍ以上のシリカが主体となった結晶分散液を塗料として塗布している。 Invention Examples 1, 2, 8 and 9 use as a paint a crystal dispersion mainly composed of silica having an average diameter of 25 nm or more at a concentration of 10% as a precursor thereof in order to form a silicon compound-based film A as a coating layer. It is applied.
本発明例３，１０では、コーティング層としてケイ素化合物主体膜Ｂを生成するべく、その前駆体として濃度２０％のポリシラザンを塗料として塗布している。 In the invention examples 3 and 10, in order to form the silicon compound-based film B as the coating layer, polysilazane having a concentration of 20% is applied as the coating material as the precursor thereof.
本発明例４，５，１１，１２では、コーティング層としてアルミニウム化合物主体膜を生成するべく、その前駆体として濃度３％、平均直径２００ｎｍ以上の水酸化アルミニウムナノ粒子分散液を塗料として塗布している。 In the invention examples 4, 5, 11 and 12, in order to form an aluminum compound-based film as a coating layer, an aluminum hydroxide nanoparticle dispersion having a concentration of 3% and an average diameter of 200 nm or more is applied as a paint as a precursor. There is.
本発明例６，７，１３，１４では、コーティング層としてジルコニウム化合物主体膜を生成するべく、その前駆体として平均直径１０ｎｍ以上のジルコニウムナノ粒子分散液を塗料として塗布している。 In the invention examples 6, 7, 13 and 14, in order to form a zirconium compound-based film as a coating layer, a zirconium nanoparticle dispersion having an average diameter of 10 nm or more is applied as a coating material as a precursor thereof.
本発明例１５，１６では、前述したケイ素化合物主体膜Ａを基材の直上に積層させ、このケイ素化合物主体膜Ａの直上に前述したアルミニウム化合物主体膜を積層させた２層構造としている。 In the invention examples 15 and 16, the above-mentioned silicon compound main film A is laminated directly on the base material, and the above aluminum compound main film is laminated directly on the silicon compound main film A to form a two-layer structure.
前述した各サンプルについて水鍋変色試験による実験的検証を行った。水鍋変色試験ついては、比較例１〜４および本発明例１〜１６の塗装を施した五徳を設けた加熱機器に２リットルの水を入れた鍋（直径２４ｃｍ）を置き、４．４ｋＷのハイカロリーバーナーで１時間連続で加熱することを繰り返し行い、JIS K5600-4-3（光源のみＬＥＤ（オーム電機LEDPL48W）を使用している）に則り変色を目視評価した。この水鍋変色試験ついては、床面壁面が全て白色（ＳＣＩ値が９０．６１）の部屋にて行い、観察位置の照度は、約２３００Ｌｕｘであった。 The experimental verification by the water pan discoloration test was performed about each sample mentioned above. For the water pan discoloration test, place a pan (24 cm in diameter) containing 2 liters of water in the heating equipment provided with Gotoku, which was coated with Comparative Examples 1 to 4 and Invention Examples 1 to 16, to obtain a high of 4.4 kW. The heating was repeated continuously for 1 hour with a calorie burner, and the color change was visually evaluated according to JIS K 5600-4-3 (only the light source is using the LED (Ohm Electric LED PL48W)). About this water pan discoloration test, the floor surface wall was all white in a room (SCI value 90.61), and the illumination intensity of the observation position was about 2300 Lux.
なお、表１では基材にアルミニウムを含有しない金属の代表としてＳＵＳ３０４、アルミニウムを含有する金属の代表として４重量％のアルミニウムを含有するステンレス鋼（１５Ｃｒ−４Ａｌ−ＬＣ,Ｎ）を例にとり、アルミニウム含有金属での変色防止耐久性向上効果を倍率で表した。この変色防止耐久性向上効果は、変色防止耐久性向上効果＝（４重量％のアルミニウムを含有するステンレス鋼の供試体における変色開始時間（ｈ））／（ＳＵＳ３０４のサンプルにおける変色開始時間（ｈ））で表される。この変色防止耐久性向上効果が３倍以上確認され、更に変色防止耐久性が３１０ｈを超えるものを◎、アルミニウム含有基材の効果が３倍以上確認されるが変色防止耐久性が３１０ｈを下回るものを○、アルミニウム含有基材の効果が確認されないものを×とし、総合評価を行った。 In Table 1, stainless steel (15Cr-4Al-LC, N) containing 4% by weight of aluminum as a representative of metals not containing aluminum as a representative of metals containing aluminum in the table is taken as an example. The discoloration prevention durability improvement effect in containing metal was represented by magnification. The anti-discoloring durability improvement effect is the anti-discoloring durability improvement effect = (discoloring start time (h) in a specimen of stainless steel containing 4% by weight of aluminum) / (discoloring start time (h) in the sample of SUS304 It is represented by). This anti-discoloring durability improvement effect is confirmed 3 times or more, and the anti-discoloring durability exceeding 310 h is ◎, the effect of the aluminum-containing substrate is confirmed 3 times or more, the anti-discoloring durability is less than 310 h As for ○, and the thing in which the effect of the aluminum containing base material is not confirmed was made into x, and comprehensive evaluation was performed.
水鍋変色試験では、前述した条件の下での目視評価を行った。先ず比較例１〜４としてアルミニウムを含有しないＳＵＳ３０４、ＳＵＳ４３０並びに４重量％のアルミニウムを含有するステンレス鋼、２重量％のアルミニウムを含有するステンレス鋼についてコーティングを行わない状態で水鍋変色試験を行い、変色開始時間を測定した。その結果、変色開始時間は基材によらず２分であった。このことから何らコーティングを行わない状態ではアルミニウム含有基材の変色防止耐久性向上効果は確認されず、総合評価は×となった。 In the water pan discoloration test, visual evaluation was performed under the conditions described above. First, in Comparative Examples 1 to 4, the stainless steel containing no aluminum 304, SUS 430 and stainless steel containing 4% by weight of aluminum, and stainless steel containing 2% by weight of aluminum were subjected to a water pan discoloration test in the absence of coating. The color change start time was measured. As a result, the color change initiation time was 2 minutes regardless of the substrate. From this, in the state which does not coat at all, the discoloration prevention durability improvement effect of an aluminum containing base material is not confirmed, but comprehensive evaluation became x.
次に、本発明例１〜３としてアルミニウムを含有しないＳＵＳ３０４、ＳＵＳ４３０について、本発明例８〜１０として４重量％のアルミニウムを含有するステンレス鋼、２重量％のアルミニウムを含有するステンレス鋼について、本発明例のコーティング条件の下でケイ素化合物主体膜Ａ並びにケイ素化合物主体膜Ｂのコーティングを行い、それぞれについて水鍋変色試験を行い、変色開始時間を測定した。その結果、本発明例１〜３の変色開始時間は全て１１０時間であったが、本発明例８〜１０は全て４７０時間時点でも変色は確認されなかった。 Next, with respect to SUS304 and SUS430 not containing aluminum as Invention Examples 1 to 3, a stainless steel containing 4% by weight of aluminum according to Invention Examples 8 to 10 and a stainless steel containing 2% by weight of aluminum The silicon compound-based film A and the silicon compound-based film B were coated under the coating conditions of the inventive example, and a water pan discoloration test was performed on each of them to measure the color change initiation time. As a result, although the color change start time of the invention examples 1 to 3 was all 110 hours, no color change was confirmed even at 470 hours of all the invention examples 8 to 10.
このことから、表２に示すように、ケイ素化合物を含むコーティング層を、アルミニウムを含有する基材上に積層させることにより、アルミニウムを含有しない基材上に積層させた際と比べ、変色防止耐久性向上効果は少なくとも４倍以上となることが分かった。また、表１に示すように、その耐久性もアルミニウムを含まない基材において最も変色防止耐久性の良い２層膜の本発明例１５の３１０時間を超えることから、総合評価は◎となった。 From this, as shown in Table 2, by laminating a coating layer containing a silicon compound on a substrate containing aluminum, the discoloration prevention durability is compared to the case where it is laminated on a substrate not containing aluminum. It was found that the sex improvement effect is at least four times or more. In addition, as shown in Table 1, the overall evaluation was ◎ because it exceeded 310 hours of the invention example 15 of the two-layer film having the highest discoloration resistance and durability in the substrate that does not contain aluminum, too. .
次に、本発明例４，５としてアルミニウムを含有しないＳＵＳ３０４、ＳＵＳ４３０について、本発明例１１，１２として４重量％のアルミニウムを含有するステンレス鋼、２重量％のアルミニウムを含有するステンレス鋼について本発明例のコーティング条件の下でアルミニウム化合物主体膜のコーティングを行い、それぞれについて水鍋変色試験を行い、変色開始時間を測定した。 Next, according to the invention examples 4 and 5 according to the invention containing no aluminum 304 and SUS 430, according to the invention examples 11 and 12 according to the invention examples 11 and 12 according to the invention about stainless steel containing 4% by weight of aluminum and 2% by weight aluminum according to the invention An aluminum compound-based film was coated under the coating conditions of the example, and a water pan discoloration test was performed on each of them to measure the color change initiation time.
その結果、本発明例４，５はそれぞれ変色開始時間が１０時間，４時間であったが、本発明例１１，１２では何れも１４５時間時点でも変色は確認されなかった。このことから、アルミニウム化合物を含むコーティング層を、アルミニウムを含有する基材上に積層させることにより、アルミニウムを含有しない基材上に積層させた際と比べ、変色防止耐久性向上効果は少なくとも１４．５倍以上となることが分かった。しかし、アルミニウムを含有する基材の効果は確認されたが、その耐久性は３１０時間を超えていないため、総合評価は○となった。 As a result, the color change start time was 10 hours and 4 hours in the invention examples 4 and 5, respectively, but no color change was confirmed in the invention examples 11 and 12 even at 145 hours. From this, by laminating a coating layer containing an aluminum compound on a substrate containing aluminum, the effect of improving the discoloration prevention durability is at least 14 compared to when laminating on a substrate not containing aluminum. It turned out that it becomes five times or more. However, although the effect of the base material containing aluminum was confirmed, since the durability did not exceed 310 hours, comprehensive evaluation became (circle).
次に、本発明例６，７としてアルミニウムを含有しないＳＵＳ３０４、ＳＵＳ４３０について、本発明例１３，１４として４重量％のアルミニウムを含有するステンレス鋼、２重量％のアルミニウムを含有するステンレス鋼について本発明例のコーティング条件の下でジルコニウム化合物主体膜のコーティングを行い、それぞれについて水鍋変色試験を行い、変色開始時間を測定した。 Next, according to invention examples 6 and 7, for SUS304 and SUS430 not containing aluminum, according to invention examples 13 and 14, the invention for stainless steel containing 4% by weight of aluminum and stainless steel containing 2% by weight of aluminum The zirconium compound-based films were coated under the coating conditions of the example, and a water pan discoloration test was performed on each of them to measure the color change initiation time.
その結果、本発明例６，７の変色開始時間は何れも４５分であったが、本発明例１３，１４の変色開始時間はそれぞれ４時間，１８時間であった。 As a result, the color change start time of each of Inventive Examples 6 and 7 was 45 minutes, but the color change start time of each of Inventive Examples 13 and 14 was 4 hours and 18 hours, respectively.
このことから、ジルコニウム化合物を含むコーティング層を、アルミニウムを含有する基材上に積層させることにより、アルミニウムを含有しない基材上に積層させた際と比べ、変色防止耐久性向上効果は５倍となることが分かった。しかし、アルミニウムを含有する基材の効果は確認されたが、その耐久性は３１０時間を超えていないため、総合評価は○となった。 From this, by laminating a coating layer containing a zirconium compound on a substrate containing aluminum, the effect of improving the color change resistance durability is five times as compared to when laminating on a substrate not containing aluminum. It turned out that it became. However, although the effect of the base material containing aluminum was confirmed, since the durability did not exceed 310 hours, comprehensive evaluation became (circle).
次に、本発明例１５，１６としてアルミニウムを含有しないＳＵＳ３０４、４重量％のアルミニウムを含有するステンレス鋼について本発明例のコーティング条件の下で前述したケイ素化合物主体膜Ａを金属層の直上に積層させ、このケイ素化合物主体膜Ａの直上に前述したアルミニウム化合物主体膜を積層させるコーティングを行い、それぞれについて水鍋変色試験を行い、変色開始時間を測定した。 Next, according to the invention examples 15 and 16, for the stainless steel containing SUS304 not containing aluminum and 4% by weight of aluminum, the silicon compound main film A described above under the coating conditions of the invention example is laminated directly on the metal layer. Then, the above-mentioned aluminum compound-based film was laminated directly on the silicon compound-based film A, and a water pan discoloration test was performed on each of them to measure the color change start time.
その結果、本発明例１５の変色開始時間は３１０時間であり、本発明例１６の変色開始時間は１７００時間であった。 As a result, the color change start time of the inventive example 15 was 310 hours, and the color change start time of the inventive example 16 was 1700 hours.
このことから、ケイ素化合物を含むコーティング層とアルミニウム化合物を含むコーティング層の２層構造を持つコーティング層を、アルミニウムを含有する基材上に積層させることにより、アルミニウムを含有しない基材上に積層させた際と比べ、変色防止耐久性向上効果は５．５倍となることが分かった。また、その耐久性も３１０時間を超えることから、総合評価は◎となった。 From this, a coating layer having a two-layer structure of a coating layer containing a silicon compound and a coating layer containing an aluminum compound is laminated on a substrate containing aluminum to be laminated on a substrate not containing aluminum. It was found that the anti-discoloring durability improvement effect is 5.5 times as high as when Moreover, since the durability also exceeded 310 hours, comprehensive evaluation was ◎.
以上の実験結果から、最表面にケイ素化合物、アルミニウム化合物、ジルコニウム化合物の何れかを含有する層を有する本発明例１〜１４は、コーティングしない比較例１〜４に比べて少なくとも２２倍以上の変色防止耐久性があることが分かる。 From the above experimental results, in the invention examples 1 to 14 having a layer containing any of a silicon compound, an aluminum compound and a zirconium compound on the outermost surface, discoloration of at least 22 times or more compared to comparative examples 1 to 4 not coated It turns out that there is durability.
また、基材のみではアルミニウム含有の有無により変色防止の耐久性の差異は確認できない。これに対して、基材としてアルミニウムを含有させ、さらにこの基材の上層にケイ素化合物、アルミニウム化合物、ジルコニウム化合物の何れかを含有する単層からなるコーティング層を形成された本発明例８〜１４は、基材としてアルミニウムを含有しないものの上層に前述したコーティング層を形成された場合と比較して、変色防止耐久性が著しく向上することが分かった。 Moreover, the difference in the durability of the color change prevention can not be confirmed by the presence or absence of aluminum content only with a base material. On the other hand, Invention Examples 8 to 14 in which aluminum was contained as a base material and a coating layer consisting of a single layer containing any of a silicon compound, an aluminum compound and a zirconium compound was formed on the upper layer of the base material. It has been found that the anti-discoloring durability is remarkably improved as compared with the case where the above-mentioned coating layer is formed on the upper layer of the substrate not containing aluminum as a substrate.
さらに、本発明例８〜１０のように、このコーティング層がケイ素化合物を含む単層であった場合、アルミニウムを含まない基材で２層膜を積層させた本発明例１５を超える変色防止耐久性を単層で発揮できることが分かった。 Furthermore, when the coating layer is a single layer containing a silicon compound as in Inventive Examples 8 to 10, the discoloration prevention durability exceeding the Inventive Example 15 in which a two-layer film is laminated on a substrate not containing aluminum. It has been found that it is possible to exert the sex in a single layer.
また、本発明例１６も同様にアルミニウムを含有する基材の効果が示され、更なる耐久性向上が可能であった。 Moreover, the effect of the base material containing aluminum similarly to this invention example 16 was shown, and the further durability improvement was possible.
［第２実施形態］
次に、図９を用いて、本発明の第２実施形態に係る加熱調理機器用加熱高温部材である五徳１’について説明する。図９は、本発明の第２実施形態に係る加熱調理機器用加熱高温部材である五徳１’を示す側面図である。
Second Embodiment
Next, Gotoku 1 'which is a heating high temperature member for cooking devices concerning a 2nd embodiment of the present invention is explained using FIG. FIG. 9 is a side view showing Gotoku 1 ′ which is a heating high-temperature member for a cooking device according to a second embodiment of the present invention.
第２実施形態に係る五徳１’が、前述の第１実施形態に係る五徳１と相違する点は、リング部と爪部の接合位置だけであるので、その点について主に説明し、材質等の説明は省略する。 The point where Gotoku 1 'according to the second embodiment differs from Gotoku 1 according to the above-described first embodiment is only the joining position of the ring portion and the hook portion, so that point will be mainly described, and the material etc. Description of is omitted.
図９に示すように、五徳１’は、ガスコンロＧの上方に位置するリング状のリング部２’と、このリング部２’に溶接されて取り付けられた６枚の爪部３’など、から構成されている。 As shown in FIG. 9, Gotoku 1 'consists of a ring-shaped ring 2' located above the gas stove G and six claws 3 'welded and attached to the ring 2'. It is configured.
この爪部３’は、五徳１の爪部３と略同形であり、立上り部３０’と、立上り部３０’の上端から外側へ突出する上辺部３１’と、からなる側面視逆Ｌ字状の板状の部位である。この五徳１’は、爪部３’の一部が、加熱調理機器であるガスコンロＧの炎に直接接して炙られ、７００℃を超える高温環境下に置かれる加熱高温部材である。 This claw portion 3 'is substantially the same shape as the claw portion 3 of Gotoku 1 and includes a rising portion 30' and an upper side portion 31 'protruding outward from the upper end of the rising portion 30' It is a plate-like part of This Vitoku 1 'is a heating high temperature member in which a part of the claw portion 3' is brought into direct contact with the flame of the gas cooker G which is a heating and cooking apparatus and is placed in a high temperature environment exceeding 700.degree.
また、このリング部２’は、複数の脚部２０’が設けられ、ガスコンロＧに載置した場合に、前述のリング部２と比べて高い位置に設置されることとなる。このため、リング部２’の大部分が、ガスコンロＧの炎に接触する炎接触部となり、ガスコンロＧを強火とした際にリング部２’の表面全域が４５０℃以上となる高温域Ｘ３となる。よって、五徳１’は、清掃時において、ガスコンロＧを着火して強火にするだけで、表面全域を４５０℃以上の高温域Ｘ３にすることができる。 Further, the ring portion 2 ′ is provided with a plurality of leg portions 20 ′, and when mounted on the gas stove G, the ring portion 2 ′ is installed at a higher position than the ring portion 2 described above. For this reason, most of the ring portion 2 'is a flame contact portion in contact with the flame of the gas stove G, and when the gas stove G is high fire, the entire surface of the ring portion 2' becomes a high temperature range X3 of 450 ° C. or higher . Therefore, at the time of cleaning, Gotoku 1 'can bring the entire surface area to a high temperature zone X3 of 450 ° C. or more only by igniting the gas stove G to make a strong fire at the time of cleaning.
第２実施形態に係る五徳１’によれば、表面全域を加熱調理機器で４５０℃以上に加熱することができるので、加熱高温部材に有機物が付着した場合であっても気化させてしまうためコビリ付くことがない。このため、お手入れ不要で加熱高温部材の新品時の美麗な光沢を保つことができる。 According to Gotoku 1 'according to the second embodiment, the entire surface can be heated to 450 ° C. or higher by the heating and cooking apparatus, and therefore, even if organic matter adheres to the heating high temperature member, it is vaporized. It does not stick. For this reason, it is unnecessary to maintain and it is possible to maintain the beautiful gloss of the heating high temperature member when it is new.
［第３実施形態］
次に、図１０を用いて、本発明の第３実施形態に係る加熱調理機器用加熱高温部材である五徳１”について説明する。図１０は、本発明の第３実施形態に係る加熱調理機器用加熱高温部材である五徳１”を示す側面図である。
Third Embodiment
Next, Gotoku 1 '' which is a heating high temperature member for cooking devices according to a third embodiment of the present invention will be described using FIG. 10. FIG. 10 shows a cooking device according to a third embodiment of the present invention. It is a side view showing Gotoku 1 '' which is a heating high-temperature member.
第３実施形態に係る五徳１”は、前述の五徳１と略同等の素材から構成されるものであり、相違する点は、前述のリング部２と同等のリング部２”を上下一対備え、このリング部２”，２”に、前述の五徳１#の爪部５と同等の側面視コの字状の爪部５”が取り付けられている点である。 The Gotoku 1 ′ ′ according to the third embodiment is made of a material substantially equivalent to the Gotoku 1 described above, and the difference is that a pair of upper and lower ring parts 2 ′ ′ equal to the above ring part 2 is provided, The ring portion 2 ", 2" is a point that a U-shaped claw portion 5 "in a side view similar to the claw portion 5 of the above-mentioned Gotoku 1 # is attached.
図１０に示すように、爪部５”は、側面視コの字状の板状の部位であり、コの字状の角部が上下一対のリング部２”，２”にそれぞれ等間隔に放射状に６枚取り付けられている。この爪部５”は、下のリング部２”から外側へ放射状に延びる下辺部５０”と、この下辺部５０”の基端部から上のリング部２”へ立ち上がる立上り部５１”と、立上り部５１”の上端から外側へ放射状に延びる上辺部５２”など、から構成されている。 As shown in FIG. 10, the claws 5 ′ ′ are plate-like portions having a U-shape in a side view, and the U-shaped corners are equally spaced on the upper and lower pair of ring portions 2 ′ ′ and 2 ′ ′, respectively. Six claws 5 "are attached radially. The claws 5" have a lower side 50 "extending radially outward from the lower ring 2" and a ring 2 "up from the base end of the lower side 50". A rising portion 51 ′ ′ rising from the upper end of the rising portion 51 ′ ′ and an upper side portion 52 ′ ′ radially extending outward from the upper end of the rising portion 51 ′ ′ are included.
このような構成のため、五徳１”は、ガスコンロＧに何れのリング部２”，２”も装着可能となっており、上下を反転させてガスコンロＧに設置することが可能となっている。このため、調理時又は清掃時に、ガスコンロＧを着火すると、図１０に示すように、立上り部５１”と上辺部５２”が炎に接触する炎接触部となり、４５０℃以上となる高温域となる。 Due to such a configuration, Gotoku 1 ′ ′ can attach either ring portion 2 ′ ′ or 2 ′ ′ to the gas stove G, and can be installed upside down on the gas stove G. Therefore, when the gas stove G is ignited at the time of cooking or cleaning, as shown in FIG. 10, the rising portion 51 ′ ′ and the upper side portion 52 ′ ′ become a flame contact portion contacting the flame and become a high temperature region of 450 ° C. or more .
このとき、下辺部５０”が中温域Ｘ２となり、油煙などの透明な付着物のコビリ付きが発生した場合であっても、五徳１”の上下を反転させると、上辺部５２”と下辺部５０”とが入れ替わり、ガスコンロＧを着火することで、下辺部５０”を４５０℃以上の高温域とすることができる。 At this time, even if the lower side portion 50 "becomes the middle temperature range X2 and cobbles of a transparent deposit such as oil smoke occur, the upper side portion 52" and the lower side portion 50 when the top and bottom of Gotoku 1 "are inverted. By turning on the gas stove G, the lower side portion 50 ′ ′ can be made into a high temperature range of 450 ° C. or more.
第３実施形態に係る五徳１”によれば、ガスコンロＧへの設置方法を変更して上下を反転させることにより、コビリ付きが発生し易い調理時の中温域である下辺部５０”（図１０と上下が逆の場合の上辺部５２”）をガスコンロＧで４５０℃以上に加熱することができる。このため、中温域に発生するコビリ付きを簡単に除去清掃することができ、清掃手間を掛けることなく新品時の美麗な光沢を保つことができる。 According to Gotoku 1 ′ ′ according to the third embodiment, the lower side 50 ′ ′ is an intermediate temperature range at the time of cooking that is prone to cracking by changing the installation method to the gas stove G and turning upside down. The upper side 52 ") can be heated to 450 ° C or higher with the gas stove G when the upper and lower sides are reversed. Therefore, it is possible to easily remove and remove clumps generated in the medium temperature range, and it takes time for cleaning You can keep the beautiful gloss at the time of new article without.
＜加熱高温部材の清掃方法＞
次に、図１１〜図１３を用いて、本発明の実施形態に係る加熱高温部材の清掃方法について説明する。図１１〜図１３は、図４に示した１年間実使用してコビリ付きが発生した現行の五徳１#の爪部５をガスコンロの炎で炙ってコビリ付きがどうなるかを確認した実験の写真であり、図１１が加熱前、図１２が加熱３分後、図１３が１０分後である。
<How to clean heating high temperature members>
Next, the cleaning method of the heating high temperature member according to the embodiment of the present invention will be described with reference to FIGS. 11 to 13 show photographs of an experiment in which the current Gotoku 1 # nail part 5 where the squeezing occurred during actual use for one year shown in FIG. 11 is before heating, FIG. 12 is after 3 minutes of heating, and FIG. 13 is after 10 minutes.
図１１に示すように、爪部５のコビリ付きをガスコンロの炎で直接炙って、４５０℃を超える高温にすると、３分後には、図１２に示すように、元々のコビリ付きは減少して行くものの、炎接触近接部となる２００℃以上４５０℃未満の中温域の部分に、付着していた有機物の炭化によるコビリ付きが発生することが確認できた。 As shown in FIG. 11, when the crumpled parts of the claws 5 are directly heated by the flame of the gas stove to a high temperature over 450 ° C., after three minutes, as shown in FIG. Although it went, it has been confirmed that a crack due to carbonization of the deposited organic matter occurs in the portion of the middle temperature range of 200 ° C. or more and less than 450 ° C., which is the flame contact proximity portion.
そして、加熱を続けて１０分後には、図１３に示すように、元々のコビリ付きは完全に消失し、さらに下方にコビリ付きが発生したことが確認できた。 Then, after 10 minutes of continuing the heating, as shown in FIG. 13, it was confirmed that the original cobble had completely disappeared and further crumpling occurred downward.
よって、本実施形態に係る加熱高温部材の清掃方法のように、調理時に２００℃以上４５０℃未満となる中温域にコビリ付きが発生した場合に、清掃時に、加熱調理機器であるガスコンロでコビリ付きが発生した部分を４５０℃以上に加熱することによりコビリ付きを除去して清掃することができる。 Therefore, as in the cleaning method of the heating high-temperature member according to the present embodiment, when caking occurs in the middle temperature range which is 200 ° C. or more and less than 450 ° C. during cooking, cribbling is caused by the gas stove which is the heating and cooking device at the time of cleaning. By heating the portion where the above occurs to 450.degree. C. or higher, it is possible to remove and clean the clogged.
つまり、本実施形態に係る加熱高温部材の清掃方法によれば、コビリ付きが発生した部分を４５０℃以上に加熱するという極めて簡単な方法により、利用者の手を煩わすことなく、加熱高温部材である五徳のコビリ付きを１０分程度の短時間で完全に除去して清掃することができる。 That is, according to the cleaning method of the heating high temperature member according to the present embodiment, the heating high temperature member does not bother the user by a very simple method of heating the portion where the crumpling has occurred to 450 ° C. or higher. It is possible to completely remove and clean a certain Gotoku in a short time of about 10 minutes.
＜コビリ付き性試験＞
次に、表３を用いて、基材とコーティング層の組み合わせとコビリ付き性の関係、及びこれらと加熱温度との関係を確認するために行ったコビリ付き性試験について説明する。
<Kobiri attachment test>
Next, Table 3 will be used to explain the relationship between the combination of the substrate and the coating layer and the sticking property, and the sticking property test carried out to confirm the relation between these and the heating temperature.
試験は、基材とコーティング層の組み合わせからなる試験体を表３の左欄に示すように種々作成し、それらに、油５μＬを１０円玉程度の大きさに塗り広げ、オーブン又はマッフル炉で150℃，200℃，300℃，400℃，450℃，500℃，600℃の各温度にて６０分間加熱し、油の様子を観察して評価した。主に、油残りがあるか否か、コビリ付きの有無等を評価したものである。表３に示す、〇は表面付着物無し、〇’は油残り、△はコビリ付き小、×はコビリ付き大の評価である。 In the test, various test specimens consisting of a combination of a substrate and a coating layer are prepared as shown in the left column of Table 3, and 5 μL of oil is spread on them to a size of about 10 yen balls, in an oven or muffle furnace. It was heated for 60 minutes at each temperature of 150 ° C., 200 ° C., 300 ° C., 400 ° C., 450 ° C., 500 ° C. and 600 ° C., and the appearance of the oil was observed and evaluated. Mainly, it was evaluated whether there was oil residue, the presence or absence of cobbles, etc. As shown in Table 3, 〇 represents no surface adhesion, ’′ represents oil residue, Δ represents small cobbles, and x represents small cobbles.
表３に示すように、基材とコーティング層の組み合わせに拘わらず、コビリ付きは、略２００℃以上４５０℃未満の温度帯で発生し、４５０℃以上になるとコビリ付きが発生しないことが確認できた。 As shown in Table 3, regardless of the combination of the substrate and the coating layer, it can be confirmed that cracking occurs in a temperature range of about 200 ° C. or more and less than 450 ° C., and cracking does not occur at 450 ° C. or more. The
＜コビリ付き除去性試験＞
次に、表４を用いて、基材とコーティング層の組み合わせとコビリ付き除去性の関係、及びこれらと加熱温度との関係を確認するために行ったコビリ付き除去性試験について説明する。
<Removability test with friction>
Next, Table 4 will be used to explain the relationship between the combination of the base material and the coating layer and the removability with cracking, and the removability test carried out to confirm the relationship between these and the heating temperature.
試験は、基材とコーティング層の組み合わせからなる試験体を表４の左欄に示すように種々作成し、それらに、油５μＬを１０円玉程度の大きさに塗り広げ、オーブン又はマッフル炉にて300℃で１５分間加熱してコビリ付きを発生させ、その後、オーブン又はマッフル炉にて400℃，450℃，500℃，600℃の各温度にて６０分間加熱し、コビリ付きが除去されたか否かを観察して評価した。表４に示す、〇はコビリ付き無し、△はコビリ付き小、×はコビリ付き大の評価である。 In the test, various test specimens consisting of the combination of the base material and the coating layer are prepared as shown in the left column of Table 4, and 5 μL of oil is spread on them to a size of 10 yen balls, and then they are placed in an oven or muffle furnace. Heated at 300 ° C for 15 minutes to generate crickling, then heated in an oven or muffle furnace at each temperature of 400 ° C., 450 ° C., 500 ° C., 600 ° C. for 60 minutes to remove crumpled matter It was observed and evaluated whether or not. As shown in Table 4, 〇 represents no evaluation, は represents a small evaluation, and x represents a large evaluation.
表４に示すように、基材とコーティング層の組み合わせに拘わらず、発生したコビリ付きは、４５０℃以上に加熱することで除去することができることが確認できた。 As shown in Table 4, regardless of the combination of the base material and the coating layer, it was confirmed that the generated unevenness can be removed by heating to 450 ° C. or higher.
＜変色防止性試験＞
次に、表５を用いて、基材とコーティング層の表面処理と変色防止性の関係、及びこれらと加熱温度とのを確認するために行った変色防止性試験について説明する。
<Color change prevention test>
Next, with reference to Table 5, the relationship between the surface treatment of the base material and the coating layer and the anti-discoloring property, and the anti-discoloring test carried out to confirm these and the heating temperature will be described.
試験は、前述のオーブン又はマッフル炉で150℃，200℃，300℃，400℃，450℃，500℃，600℃の各温度にて６０分間加熱してコビリ付き除去性確認用の試験体について、変色・変質の有無を目視により確認した。表５に示す、〇は変色・変質無し、×は変色・変質有りの評価である。 The test is carried out by heating for 60 minutes at each temperature of 150 ° C, 200 ° C, 300 ° C, 400 ° C, 450 ° C, 500 ° C and 600 ° C in the above-mentioned oven or muffle furnace and using a test body for confirmation of rubbed removability The presence or absence of discoloration or deterioration was visually confirmed. As shown in Table 5, 〇 indicates no discoloration or deterioration, and x indicates no discoloration or deterioration.
表５に示すように、本実施形態に係る五徳１，１’，１”のように、変色防止対策の表面処理を施した基材とコーティング層の組み合わせでは、いずれの温度でも変色・変質は確認できなかった。一方、表面処理を施さない、生材のステンレス基材、アルミニウム含有ステンレス基材は、いずれも４００℃以上になると変色が確認できた。 As shown in Table 5, in the combination of the base material and the coating layer subjected to the surface treatment for preventing discoloration as in the case of Gotoku 1, 1 ', 1 "according to the present embodiment, On the other hand, when the raw material stainless steel base and the aluminum-containing stainless steel base which were not subjected to the surface treatment were all at 400 ° C. or higher, discoloration could be confirmed.
以上の試験から基材とコーティング層の組み合わせによる表面処理の極めて高い耐熱性を活用し、調理時又は清掃時にオーブンなどの加熱調理機器で４５０℃以上の高温とすることで、変色・変質を防止しつつ、コビリ付きを発生させないこと、又は、コビリ付き除去できることを確認することができた。 From the above tests, utilizing the extremely high heat resistance of the surface treatment by the combination of the substrate and the coating layer, preventing discoloration and deterioration by heating to 450 ° C or higher with cooking equipment such as an oven at the time of cooking or cleaning At the same time, it was possible to confirm that no crickling could occur or that cribbling could be removed.
＜コビリ付き性の時間依存性＞
次に、表６〜表１２を用いて、コビリ付き性の各加熱温度での加熱時間との関係を確認するために行ったコビリ付き性の時間依存性試験について説明する。
<Time-dependency of the sticking property>
Next, with reference to Tables 6 to 12, a time dependency test of the sticking property performed to confirm the relation of the sticking property to the heating time at each heating temperature will be described.
試験は、前述のコビリ付き性試験と同様に、基材とコーティング層の組み合わせからなる試験体を各表の左欄に示すように種々作成し、それらに、油５μＬを１０円玉程度の大きさに塗り広げ、オーブン又はマッフル炉にて150℃，200℃，300℃，400℃，450℃，500℃，600℃の各温度にて６０分間加熱し、油の様子を１５分毎に観察して評価した。各表に示す、〇は表面付着物無し、〇’は油残り、△はコビリ付き小、×はコビリ付き大の評価である。 In the test, as in the above-mentioned test for adhesion to bumps, various test specimens consisting of a combination of a substrate and a coating layer were prepared as shown in the left column of each table, and 5 μL of oil was used to make them as large as 10 yen balls Spread in the oven or in a muffle furnace at temperatures of 150 ° C, 200 ° C, 300 ° C, 400 ° C, 450 ° C, 500 ° C, 600 ° C for 60 minutes and observe the oil every 15 minutes It evaluated. As shown in each table, 〇 indicates no surface adhesion, ’'indicates oil residue, Δ indicates small cobbles, and x indicates small cobbles.
表６に示すように、加熱温度が１５０℃では、表面処理の組み合わせに拘わらず、コビリ付きは発生せず、表７に示すように、加熱温度が２００℃になると、３０分又は４５分加熱するとコビリ付きが発生し、表８に示すように、加熱温度が３００℃になると、１５分加熱しただけでコビリ付きが発生する。 As shown in Table 6, when the heating temperature is 150 ° C, regardless of the combination of the surface treatment, no caking occurs, and as shown in Table 7, when the heating temperature is 200 ° C, the heating is performed for 30 minutes or 45 minutes As a result, as shown in Table 8, when the heating temperature reaches 300 ° C., cracking occurs only by heating for 15 minutes.
また、逆に、表９に示すように、加熱温度が４００℃になると、４５分又は６０分加熱することで、コビリ付きが解消するものが現れ始め、表１０に示すように、加熱温度が４５０℃になると、６０分加熱すると全ての試験体でコビリ付きが解消した。 Also, conversely, as shown in Table 9, when the heating temperature reaches 400 ° C., when the heating for 45 minutes or 60 minutes, it is beginning to appear that the sticking is eliminated, and as shown in Table 10, the heating temperature is When heated to 450 ° C., cracking was eliminated in all the specimens after heating for 60 minutes.
そして、表１１に示すように、加熱温度が５００℃になると、１５分又は３０分加熱するとコビリ付きが解消し、表１２に示すように、加熱温度が６００℃になると、１５分加熱しただけで全ての試験体でコビリ付きが解消する。 Then, as shown in Table 11, when the heating temperature reaches 500 ° C., cracking occurs when heating for 15 minutes or 30 minutes, and as shown in Table 12, when the heating temperature reaches 600 ° C., heating is only performed for 15 minutes. In all the test pieces, the crush is eliminated.
＜コビリ付き除去性の時間依存性＞
次に、表１３〜表１６を用いて、コビリ付き除去性の各加熱温度での加熱時間との関係を確認するために行ったコビリ付き除去性の時間依存性試験について説明する。
<Time dependency of removability with friction>
Next, with reference to Tables 13 to 16, a time dependency test of the removability with removal performed to confirm the relationship between the removability with removability and the heating time at each heating temperature will be described.
試験は、前述のコビリ付き除去性試験と同様に、基材とコーティング層の組み合わせからなる試験体を各表の左欄に示すように種々作成し、それらに、油５μＬを１０円玉程度の大きさに塗り広げ、オーブン又はマッフル炉にて300℃で１５分間加熱してコビリ付きを発生させ、その後、オーブン又はマッフル炉にて400℃，450℃，500℃，600℃の各温度にて最大６０分間加熱し、１５分毎にコビリ付きが除去されたか否かを観察して評価した。各表に示す、〇はコビリ付き無し、△はコビリ付き小、×はコビリ付き大の評価である。 In the tests, as in the above-mentioned test for removal of cobbles, various test specimens consisting of a combination of a substrate and a coating layer were prepared as shown in the left column of each table, and 5 μL of oil was added to them in 10 yen balls. Spread in size, heat at 300 ° C for 15 minutes in oven or muffle furnace to generate crickling, then at each temperature of 400 ° C, 450 ° C, 500 ° C, 600 ° C in oven or muffle furnace It was heated for up to 60 minutes, and observed and evaluated every 15 minutes whether or not cobble was removed. As shown in each table, 〇 represents no evaluation, は represents a small evaluation, and x represents a large evaluation.
表１３に示すように、加熱温度が４００℃では、ホーロー（鉄基材+ＳｉＯ2）のみ３０分加熱するとコビリ付きが除去された。しかし、表１４に示すように、加熱温度が４５０℃では、６０分加熱すると全ての試験体において、コビリ付きが除去された。 As shown in Table 13, when the heating temperature was 400 ° C., only the enamel (iron base + SiO 2 ) was heated for 30 minutes to remove the entanglement. However, as shown in Table 14, when the heating temperature was 450 ° C., when the heating was performed for 60 minutes, crumpling was removed in all the test samples.
表１５に示すように、加熱温度が５００℃になると、１５分又は３０分加熱するとコビリ付きが除去され、表１６に示すように、加熱温度が６００℃になると、１５分加熱しただけで全ての試験体でコビリ付きが除去された。 As shown in Table 15, when the heating temperature reaches 500 ° C., cracking is removed by heating for 15 or 30 minutes, and as shown in Table 16, when the heating temperature reaches 600 ° C., all heating is performed for only 15 minutes. In the test specimen of [Konari] was removed.
以上のコビリ付き性の時間依存性確認試験から基材とコーティング層の組み合わせによる表面処理の極めて高い耐熱性を活用し、調理時又は清掃時にオーブンなどの加熱調理機器で４５０℃以上の高温で最大６０分加熱することで、変色・変質を防止しつつ、コビリ付きを発生させないこと、又は、コビリ付き除去できることを確認することができた。 Taking advantage of the extremely high heat resistance of the surface treatment by the combination of the substrate and the coating layer from the above time dependency confirmation test of the sticking property, the maximum at high temperature of 450 ° C or more with cooking equipment such as oven at the time of cooking or cleaning By heating for 60 minutes, it was possible to confirm that neither discoloration nor removal could occur while preventing discoloration or deterioration.
以上、本発明の第１〜３実施の形態に係る加熱調理機器用加熱高温部材について詳細に説明したが、前述した又は図示した実施の形態は、何れも本発明を実施するにあたって具体化した一実施の形態を示したものに過ぎない。よって、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。 As mentioned above, although the heating high temperature member for cooking devices concerning the 1st-3rd embodiment of the present invention was explained in detail, any of the embodiments described above or shown in the drawings are embodied in carrying out the present invention The embodiment is only shown. Therefore, the technical scope of the present invention should not be interpreted limitedly by these.
特に、本発明の実施形態に係る加熱調理機器用加熱高温部材としてガスコンロＧの五徳１，１’，１”を例示して説明したが、本発明は、五徳に限られず、グリル、オーブン、ガスバーナー、乾燥焼成炉等の加熱調理機器において、４５０℃以上に加熱される加熱高温部材には適用することができる。例えば、本発明は、ガスコンロ、グリル、オーブン、ガスバーナー、乾燥焼成炉等に用いられる、網、引出しプレートなどの金属部材、鍋、薬缶などの加熱調理器具、ヒータ近接部材などには好適に適用することができる。 In particular, Gotoku 1,1 ', 1 "of the gas stove G has been illustrated and described as a heating high-temperature member for a heating and cooking apparatus according to an embodiment of the present invention, but the present invention is not limited to Gotoku, grills, ovens, gas The present invention can be applied to heating high-temperature members heated to 450 ° C. or more in a heating and cooking apparatus such as a burner and a drying and calcining furnace, For example, the present invention relates to a gas stove, a grill, an oven, a gas burner, a drying and calcining furnace, etc. It can apply suitably to metal members, such as a net | network and a drawer plate, heating cookwares, such as a pot and a medicine can, and a heater proximity member which are used.
例えば、加熱調理機器が魚焼きグリルである場合、魚焼きグリル内に設けられたグリル内天板や下火カバーは、一般に調理時には、グリル内天板は、約３５０℃まで昇温し、下火カバーは、約３００℃まで昇温する。このため、これらの部材は、加熱調理機器用加熱高温部材に相当する。また、このようなグリル内天板や下火カバーが前述の表面処理を施していないステンレス生材であった場合、３００℃以上に達すると、表３及び表５に示したように、基材の変色及びコビリ付きが発生する。しかし、本発明を適用して魚焼きグリルの火力を上げたり、これらの設置位置を変更したりすることにより、４５０℃以上に加熱することで、基材の変色を防止しつつコビリ付きを発生させず、又は、発生した場合でも気化させることでコビリ付きを除去することができる。 For example, when the cooking device is a fish grill, the grill inner top plate and the lower fire cover provided in the fish grill generally heats up to about 350 ° C. during cooking and the bottom The fire cover heats up to about 300 ° C. Therefore, these members correspond to the heating high-temperature members for the heating and cooking apparatus. In addition, in the case where such a grill inner top plate or a lower fire cover is a stainless green material which has not been subjected to the above-mentioned surface treatment, when it reaches 300 ° C. or more, as shown in Table 3 and Table 5, Coloration and cracking occur. However, by raising the power of the fish grill by applying the present invention or changing the installation position of these, by heating at 450 ° C. or higher, generation of cracking occurs while preventing discoloration of the substrate. If it does not occur, or if it occurs, it can be removed by evaporation.
１，１’，１”：五徳（加熱調理機器用加熱高温部材）
１０：基材
１１：コーティング層
２，２’，２”：リング部
２０：脚部
３，３’：爪部
３０，３０’：立上り部
３１，３１’：上辺部
５，５”：爪部
５０：立上り部
５１：炎接触近接部
５２：炎接触部
５０”：下辺部
５１”：立上り部
５２”：上辺部
Ｇ：ガスコンロ（加熱調理機器）
Ｘ１：低温域
Ｘ２：中温域
Ｘ３：高温域
1, 1 ', 1 ": Gotoku (heating high temperature component for cooking equipment)
10: base material 11: coating layer 2, 2 ', 2 ": ring 20: leg 3, 3': claw 30, 30 ': rising part 31, 31': upper side 5, 5": claw 50: rising portion 51: flame contact proximity portion 52: flame contact portion 50 ": lower side portion 51": rising portion 52 ": upper side portion G: gas stove (heating cooker)
X1: low temperature range X2: middle temperature range X3: high temperature range
Claims (8)
前記加熱調理機器で下部接触部及びその近傍を除く表面全域が、調理時又は清掃時に、少なくとも一時的に前記加熱調理機器で４５０℃以上に加熱可能に構成されていること
を特徴とする加熱調理機器用加熱高温部材。 A heating high-temperature member for a cooking device, which is used simultaneously with a cooking device for cooking and which is partially heated to 450 ° C. or higher by the heating device,
The entire cooking surface area except the lower contact portion and the vicinity thereof in the heating and cooking apparatus is configured to be capable of heating at least temporarily to 450 ° C. or more by the heating and cooking apparatus at the time of cooking or cleaning. Heating high temperature members for equipment.
を特徴とする請求項１に記載の加熱調理機器用加熱高温部材。 The heating high-temperature member for the cooking device according to claim 1, wherein the entire surface is configured to be capable of being heated at least temporarily to 450 ° C or more by the cooking device at the time of cooking.
４５０℃以上の高温となる高温域と２００℃以上４５０℃未満となる中温域、又は前記中温域が存在し、清掃時に前記中温域を前記加熱調理機器で４５０℃以上に加熱可能に構成されていること
を特徴とする加熱調理機器用加熱高温部材。 A heating high-temperature member for a heating and cooking apparatus, which is used simultaneously with a heating and cooking apparatus for performing heating and cooking and which can be partially heated to a high temperature of 450 ° C. or higher by the heating and cooking apparatus;
There is a high temperature zone with high temperature of 450 ° C. or higher and a medium temperature zone with 200 ° C. or more but less than 450 ° C., or the above-mentioned medium temperature region, and it is configured to be able to heat the above-mentioned medium temperature region to 450 ° C. or more with the cooking device during cleaning A high temperature member for heating and cooking equipment, characterized in that
を特徴とする請求項３に記載の加熱調理機器用加熱高温部材。 The heating apparatus for heating and cooking apparatus according to claim 3, wherein the medium-temperature range is configured to be able to be heated to 450 ° C or more by the heating and cooking apparatus by changing a method of installing the heating and cooking apparatus. High temperature member.
を特徴とする請求項１ないし４の何れかに記載の加熱調理機器用加熱高温部材。 The heating high temperature member for cooking devices according to any one of claims 1 to 4, further comprising a layer containing any of a silicon compound, an aluminum compound, and a zirconium compound on the outermost surface.
を特徴とする請求項１ないし５の何れかに記載の加熱調理機器用加熱高温部材。 A silicon compound is further contained in the lower layer of a silicon compound, an aluminum compound, a single layer of a zirconium compound, or a layer containing an aluminum compound on a stainless steel base, an iron base, or an aluminum base. The coating layer which consists of layers is formed. The heating high temperature member for cooking devices in any one of the Claims 1 thru | or 5 characterized by the above-mentioned.
を特徴とする請求項５又は６に記載の加熱調理機器用加熱高温部材。 The heating high temperature member for cooking devices according to claim 5 or 6, containing any of a silicate compound as the silicon compound, an aluminum oxide compound as the aluminum compound, and a zirconium oxide compound as the zirconium compound.
調理時に２００℃以上４５０℃未満となる中温域にコビリ付きが発生した場合に、清掃時に、コビリ付きが発生した部分を４５０℃以上に加熱することによりコビリ付きを除去して清掃すること
を特徴とする加熱調理機器用加熱高温部材の清掃方法。 A heating high-temperature member for heating and cooking equipment which is used simultaneously with a heating-cooking equipment for performing heating and cooking, and removes and removes cobbles of a heating high-temperature member which is partially heated to 450 ° C. The cleaning method is
It is characterized in that when caking occurs in the medium temperature range where the temperature is 200 ° C. or more and less than 450 ° C. during cooking, the crumpled portion is removed and cleaned by heating the portion where the caking occurs at 450 ° C. or more. The cleaning method of the heating high temperature member for cooking devices made with.
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