JPH04143520A - Cooker - Google Patents

Abstract

PURPOSE:To cook food so as to make appearance more attractive and to be made tasty in a short time, by a method wherein a graphite-made dish is located facing a heating means, in a heating chamber, and a coat which contains a pigment and a filler is formed and as a binder, uses a borosiloxane polymer or a titanocarboxylane polymer on the surface of the graphite-made dish. CONSTITUTION:As a heating means 2, a heater with high infrared ray emissivity is composed of a metallic heating-member 5 wrought in metallic foil and a supporting member 6 made of ceramic or the like. The heater formed by patternizing the metallic foil with the high emissivity is located within a cooker, and as a tray, a graphite-made dish is used. In order to prevent oxidation and to avoid the adhesion of cooked foods or the like under the condition of abnormal use such as high temperature heating, the graphite dish is used forming a coat which contains a pigment and a filler and as a binder, uses a borosiloxane polymer or a titanocarboxylane polymer. In this way, since heat conduction is excellent, even a big sized food is equally scorched and can be finely cooked.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooking device for grilling meat, fish, etc., which does not require turning over during heating until the food is cooked to completion.

Conventional technology When grilling meat, fish, etc. in a cooking device with a heating chamber, in order to finish the cooking without having to turn the food over halfway through cooking, conventional methods used to skewer the food and rotate the food. Two methods have been adopted: one method is to rotate the food by sandwiching the food from the top and bottom with wire mesh, and the other is to heat the food from both sides by placing heating means on the top and bottom surfaces of the food product. In addition, side dishes such as hamburgers are cooked using a square plate with an enameled iron plate (enameled steel plate) surface, and then preheated. It has been proposed to brown the hamburger steak using a microwave oven, then place the hamburger steak in the frying pan in a microwave oven to finish the hamburger steak using microwave heating.

Problems to be Solved by the Invention When it comes to cooking, it is desirable to have delicious food that looks good and is cooked in a short amount of time, but conventional techniques have had drawbacks. In the case of means for rotating the food and means for disposing heating means on both the top and bottom of the food, the umami of the food may be lost along with the meat juices, the flavor may deteriorate, or the food may lose its shape (i.e., the surface of the food may become uneven). , peeling of the skin), resulting in a poor appearance. Also, on a square plate,
The method of heating and cooking after preheating a square plate lacks heat, making it difficult to achieve a beautiful appearance and delicious food in a short period of time. The method of using a frying pan in combination with heating on a gas stove is gaining acclaim in the market because it produces relatively good results, but it is cumbersome to put in and take out the gas stove and open microwave oven, and microwave heating The problem with this process is that when it is finished, moisture from within causes the surface to crumble, making it somewhat unsightly.

Means for Solving the Problems In order to solve these conventional problems, the present invention provides a heating chamber for heating food, a heating means disposed above the heating chamber, and a door for opening and closing the opening of the heating chamber. A graphite plate is placed in the heating chamber facing the heating means.

In the present invention, a graphite plate placed opposite the heating unit is preheated by a heating unit placed in the upper part of the heating chamber, food is placed on the plate, and the food is finished by continuing heating. Graphite has excellent infrared absorption properties for the heating means of infrared radiant heating, good thermal conductivity, and low specific gravity, so it can be heated uniformly in a short time with little surface unevenness during preheating. Graphite plates have the property of gradually oxidizing in the air at temperatures above 600°C, but the upper limit of the cooking chamber is usually 300".
It is about C and has no problems, and is resistant to thermal shocks such as 2 heat and rapid cooling.

It is clean and does not stick to food, seasonings, etc., and does not corrode at all.

In particular, when used in combination with high-power radiant heating means, short-time cooking becomes possible, making the means of the present invention even more effective.

EXAMPLES The present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of the cooking device of the present invention. In FIG. 1, 1 is a heating chamber for heating food. This diagram assumes that the fish will be grilled inside the oven. 2 is an electric heater as a heating means. A gas burner may be used instead of an air heater. The larger the infrared radiation ability of the second heating means is, the more advantageous it is. 3 is a door that opens and closes the opening of the heating chamber. 4 is a graphite plate placed opposite the heating means 2. FIG. 2 shows a plan view of a heater with high infrared radiation as an embodiment of the heating means 2. 5 is a metal heating element processed from metal foil, and 6 is a support such as ceramics. 5
Die-cutting or machining foils of heat-generating metals such as Fe-Cr-Al alloys and Ni-Cr alloys with a thickness of 20 to 30 μm to 200 μm.

It is used by cutting by cutting or laser cutting into 8 pieces. Since this electric heater is composed of only a heating element, its heat capacity is small and the temperature rises quickly. Further, since thin foil is used, there is an advantage that a large radiation area can be obtained when the heater capacity is constant, compared to the case where a round bar heater is wound. Since the metal heating element is used in a bare state, there are concerns about its corrosion resistance and reliability as a cooker, but with high Ni metal as the base material,
If you clad the drawing with aluminum foil and then use a heat-treated metal heating element, this problem will not occur.

A NCH-1 base material with a thickness of 50 μm and aluminum cladding with a thickness of 2 μm on both sides was heat-treated in air at 900°C for 3 hours, and then patterned into a 6-wall pattern.
A heater with an output of about 1.2 kW was used. A comparison was made using our open microwave oven NEA770. Honjima uses a heater made by winding a mica FCH heating wire, sandwiching it between mica plates and fixing it to the outside of the ceiling.The output of the heater is 1.23kW, and the temperature of the oven ceiling is approximately 500°. It is C. The internal dimensions of this oven are 322 x 340 x 195 ma. Here, four hamburger steaks each weighing about 100 g were heated for 25 minutes without preheating using a saucer having a plate thickness of 0.8 mm and enameled on both sides.

Method 1 (i) was easy, but the center of the hamburger steak rose and the finish was not very good. Next, after preheating the saucer for 10 minutes, the temperature of the saucer became 300"C.

Then, I placed four hamburgers on a saucer and heated the front side for 5 minutes, then turned it over and heated the back side for 10 minutes, but the top of the hamburger steak was hardly burnt.

Next, a similar experiment was carried out using a graphite plate with dimensions of 300 x 330 x 10 as a receiving plate, with a graphite plate formed by patterning a highly radiant metal foil placed inside the refrigerator.
With 5 molecules of heat, the temperature of the graphite plate reached 180°C.At this point, I placed 4 hamburgers on the saucer, heated them with a heater, and they were cooked in 5 minutes, with a nice brown color on both the front and back, and a beautiful appearance. A finished product was obtained. A similar experiment was conducted with grilled fish and grilled meat, but if you set the preheating time appropriately, there is no need to turn it over halfway through, and the front and back sides are clean.
I confirmed that the fire had reached the inside and it was finished.

In normal use, graphite plates can be used as is for their appearance, but in order to prevent oxidation under high-temperature heating under abnormal usage conditions, and to prevent food from sticking (sticking), it is recommended that the surface be treated. is desirable. As a result of investigating surface treatment methods, it was found that it is effective to use boronoxane polymers or titanocarbonane polymers as binders to form coatings containing pigments and fillers.

Tyranopolymer (
Product name: Ube Industries ■) 10 parts 1 part, Fe- as a pigment
Disperse 20 parts by weight of the Mu-Cu complex oxide black pigment 'Dibiloxai Color #9550J (trade name Ni-Dainichiseika@) with a solvent of 100 parts by weight of alumina and 1 part of 101i in a paint dispersion machine to form a dispersed paint. Approximately 1
Coated on a graphite dish with a film thickness of 0 μm and heated at 400°C for 10
A film was formed by firing separately.

Using this plate and an untreated plate, various seasonings and 5 foods were applied on their surfaces, and after heat treatment at 300°C for 30 minutes, the former had almost no stains and was easily removed by washing with water. The latter had oily substances such as lard salad oil attached to it, and also had noticeable traces of lemon juice, curry powder, ketchup, etc.

Although boronoxane polymers have not been confirmed, similar effects can be expected.

Although the embodiments have been described with reference to an electric heater, the same applies to an infrared gas burner ("Schbank burner").

Heaters using metal foil can also be used in ovens and microwave ovens equipped with magbutrons; It is desirable to provide a micro-shielding board such as punched metal on the underside of the heater indoors.

The heating means 2 may be electricity, gas, or petroleum, and induction heating or dielectric heating may be added thereto.

As can be seen from more than just the effects of the invention, the present invention makes it possible to cook grilled foods such as meat and fish without having to turn the food over during heating, making it possible to cook grilled foods such as hamburgers, which were difficult to control in the past. Your cooking will look good and taste delicious.

This dish is resistant to all kinds of stains that come with cooking, so it doesn't get stuck and stays clean.

It is chemically stable, resistant to thermal shock, and has good heat conduction, so even large foods can be scorched evenly and finished beautifully.

With the above, a heating cooker that brings a new dimension to grilled food cooking is realized.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a heating cooker according to an embodiment of the present invention;
The figure is a plan view of the heating means of the heating cooker. 1... Heating chamber, 2... Heating means, 3.
...Door, 4...Graphite plate.

Claims (2)

[Claims] (1) A heating chamber for heating food, a heating means placed above the heating chamber, a door for opening and closing the opening of the heating chamber, and graphite placed in the heating chamber facing the heating means. A heating cooker with a plate made of (2) A cooking device in which a film containing a pigment and a filler is formed on the surface of a graphite dish using a boronoxane polymer or a titanocarbosilane polymer as a binder.