JP3013412U - Metal cooking equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents burning of metal cooking equipment. [Structure] The cooking surface is formed into a finely uneven surface with uniform dispersion so as not to cause film destruction in a large area that causes charring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a cooking device in which the charring property of a metal heating surface is improved.

[0002]

[Prior art]

 For example, an iron frying pan is extremely easy to use, as long as it is used for a long time and a good film is formed on the surface. This film is a composite film consisting of iron oxides and foods such as oil that have been soaked into them, which have been thermally decomposed and partially carbonized. The "handed" condition is maintained. However, sometimes this film is destroyed by excessive baking or overwashing, and the iron material is partially exposed. When food comes into direct contact with it and is heated to a high temperature, charring occurs. This part will then be inevitably rubbed or washed hard, leaving no time to regenerate a stable film. This is called "burnt".

In order to avoid this, in recent years, various high-grade cooking utensils coated with Teflon or ceramics are commercially available. However, all of these have the problems that they are expensive, poor in thermal conductivity, mechanically weak, have limited heat resistance, are hard to be naturally burnt, etc. Not in. Since the taste of a well-used iron pan is very good, it would be most desirable if the iron-based natural film can be stabilized.

As described above, see Journal of Home Economics, Vol. 28, No. 6, page 398 (1977) and “Cooking Science Dictionary” pages 406 to 409 (published by Ito Dental Publishing Co., Ltd. 1970).

[0005]

[Problems to be solved by the device]

 Under the background of the prior art described in the preceding paragraph, the present invention aims to provide a measure for improving the sticking property of the cooking surface of a cooking device made of metal.

[0006]

[Means for Solving the Problems]

 As a result of earnest research aimed at achieving the object described in the preceding paragraph, the inventor of the present invention has found that the cooking surface (surface) of a metallic cooking appliance is exposed to mechanically, thermally and chemically harsh conditions during cooking and heating. However, it is unavoidable that the surface coating is partially destroyed, and if the coating is destroyed in a large area at this time, it will be scorched, but the area where the coating may be destroyed is made into a small area over the entire surface. It was found that dispersion to be distributed as evenly as possible is extremely effective in preventing scorching, and the present invention has been completed based on such knowledge.

That is, the present invention is a metal cooking device characterized by having a finely uneven surface with uniform dispersion so as not to cause film destruction in a large area that causes the cooking surface to burn. Regarding

Hereinafter, the present invention will be described in detail.

The metal cooking device according to the present invention is such that the metal cooking surface (surface) becomes charred. Examples of the material metal include iron, stainless steel, titanium, aluminum and alloys thereof. Specific examples of equipment include pans such as frying pans, molds such as octopus ware, sea bream ware, and gold brisk ware, and plate products such as iron plate ware and okonomiyaki ware.

Surface treatment can be used to make the cooking surface a fine uneven surface and the uneven surface in which unevenness is dispersed so as to be uniformly distributed on the surface. The surface treatment can be performed by metal spraying, arc spraying, plasma spraying, etc. to form convex parts on the unprocessed surface, grit blasting to form concave parts, blasting such as shot blasting, etching, etc. . Of course, both can be used together.

The prevention of scorching also involves the depth or height of the unevenness, the shape and size of the top of the protrusion, and the ratio of the surface area of the top of the protrusion to the total surface, and these should be adjusted appropriately. Is necessary to prevent scorching.

That is, for example, when a material such as iron or carbon steel is sprayed on the cooking surface to form fine protrusions, the tops of the protrusions are made substantially smooth by polishing or the like, and the height of the protrusions is reduced. 5 to 500 μm, preferably 10 to 200 μm, and the diameter of the flattened apex to 10 to 500 μm, preferably 50 to 300 μm, and the total area of the smoothed apex before heating. The ratio to the cooking surface is 10 to 90%, preferably about 30 to 70%. Smoothing of convex parts The size of the top surface and its distribution state can be observed in a stereoscopic microscope (photograph) as a part with metallic luster, and the total area of the part with metallic luster is smoothed. It is the total area of the summit.

Further, in the case of spraying a grit made of a material such as steel or alumina on the cooking surface (surface) to form fine recesses (holes), the smoothing peaks and projections of the projections described above are formed. The height of the portion corresponds to the height of the top portion of the convex portion and the depth of the concave portion caused by grit blast or the like, respectively. Therefore, the depth of the hole is 5 to 500 μm, preferably about 10 to 200 μm, the diameter of the top of the convex portion is 5 to 500 μm, preferably about 10 to 200 μm, and the total area of the surface portion left uncut is The surface area before blasting is 10 to 90%, preferably 30 to 70%. In addition, by adjusting the blasting conditions by the surface processing by blasting, it is possible to disperse the surface portion left uncut to be evenly distributed on the cooked surface after processing.

[0014]

【Example】

 Hereinafter, the present invention will be further described with reference to examples.

Example 1 The surface (heating surface) of an iron frying pan was treated by the unevenness forming method (surface treatment method) listed in Table 1 below.

[0016] Each surface-treated frying pan was baked in the air, and the operation of soaking the soybean oil was repeated several times, and then it was used for cooking such as roasted meat and fried eggs. The "handed" surface was formed and good usability was obtained, whereas in the comparative example, many parts were spared from the blasting treatment (lacking blasting treatment), and it was scorched.

[0017]

[Table 1]

[0018]

【The invention's effect】

 According to the present invention, the charring property of the cooking surface (surface) of the metal cooking device can be easily improved, and by extension, the metal cooking device that is hard to burn can be provided at low cost. Became.

[Brief description of drawings]

FIG. 1 is a perspective view of an example (frying pan) of a metal cooking device according to the present invention.

[Explanation of symbols]

 1 Frying pan 2 Surface-treated cooking surface 3 Handle

Claims (3)

[Scope of utility model registration request] 1. A cooking device made of metal, characterized in that the cooking surface (surface) is made into a finely uneven surface with uniform dispersion so as not to cause film destruction in a large area that causes charring. . 2. The uneven surface is formed by forming a convex portion by surface treatment by thermal spraying, and the top of the convex portion is substantially smoothed, and its height is 5 to the valley portion of the concave portion.
2. The diameter of the smoothed top is set to 500 μm, the diameter of the smoothed top is set to 10 to 500 μm, and the total area of the smoothed top is set to 10 to 90% as a ratio to the surface area before processing.
The described metal cooking equipment. 3. The uneven surface is formed by forming a concave portion by surface treatment by blasting or etching.
At this time, the depth of the concave portion (hole) is 5 to 500 μm, the diameter of the top of the other convex portion is 10 to 500 μm, and the total surface area of the convex portion is 10 to 90% in terms of the surface area before processing. The metal cooking device according to claim 1, wherein