KR20210089925A - A bowl of tin and copper processed inner circumference and manufacturing method - Google Patents

Abstract

The present invention relates to an organic bowl with a processed inner circumferential surface, and more particularly, to an organic bowl processed so that an edge of the organic bowl is rolled down into the inner circumferential surface and a surface of an outer circumferential surface of the edge is cut off, and a method for manufacturing the organic bowl such as heating and rolling.

Description

{A bowl of tin and copper processed inner circumference and manufacturing method}

The present invention relates to an organic bowl in which the inner circumferential surface is processed, and more particularly, an organic bowl in which the edge of the organic bowl is rolled down into the inner circumferential surface and the surface of the outer peripheral surface of the edge is cut off, and a method such as heating and rolling the organic bowl It is about manufacturing.

In general, various materials such as stainless steel, aluminum, and plastic are used as materials for tableware. Among them, Bangjja Yugi is popular among consumers as a health tableware with antibacterial properties and a luxurious color, but also as a communal item and daily life accessory.

However, conventional products are heavy with an old design and are inconvenient to use frequently.

Therefore, it should be made light and convenient to use, but it is difficult to make light, and even if it is made, the edges are thick, thin and not elegant, and the thin edge is dangerous due to the rigidity of the metal (it may hurt your hand or other body).

In addition, organic products made of existing copper alloy materials including brass and cupronickel are emerging to replace Bangjja Yugi.

However, organic products using these existing copper alloy materials are different from Bangjja Yugi in terms of color and hygiene, so they do not satisfy consumers.

Bangjja yugi is yugi made by melting copper (Cu) and tin (Sn) in a weight ratio of 78:22 by heating it in a fire and tapping it with a hammer. On the other hand, casting yugi is a method of making a bowl by pouring molten iron into a certain mold, and Banbangjja yugi is a method of making a basic shape with casting and then completing a specific shape with the bangjja technique.

Due to this difference in manufacturing method, while casting yugi can be produced by two or a few people, bangjja yugi is melted → nefimjil (widen) → cider cud → naengjil → dakchimjil → smelting and quenching → grueling → Because it has to go through several processes of having it, many personnel and skilled skills are required.

The reason that skillful technology is required for manufacturing Bangjjayugi is that when the tin (Sn) content increases in the copper alloy, a δ phase that causes brittleness is formed, and thus cracks easily occur.

Therefore, in order to prevent cracks from occurring during the manufacturing process, the process must be repeated in the range of 620~800℃ where the β phase exists, with a minimum degree of processing, heat treatment, and processing again. Through this processing, high-quality Bangjja Yugi is manufactured. It is difficult to perform unless you are a professional craftsman.

On the other hand, this copper alloy container is probably a metal that has been used since the Bronze Age, but our organic alloy is in the form of an alloy that can hardly be found in the world. Recently, research on the biological properties of this type of organic alloy is being conducted in foreign countries. the current situation.

Copper is an essential trace element generally required by the living body. They bind to many metalloenzymes and proteins in vivo and are involved in important reactions such as electron transfer and redox.

The role of copper in the redox reaction plays a role in this redox reaction because copper is converted from monovalent to divalent depending on the external chemical environment.

However, the in vivo requirement of the microorganisms for copper is low at 1-10 μM.

On the other hand, excess copper is toxic to aerobic bacteria.

It has been reported that the toxic action of copper is caused by binding to nucleic acids or oxidation of the cell membrane modified at the catalytic site of the enzyme.

Copper, a component of bronze, has been reported to have an antibacterial effect on various microorganisms compared to stainless steel or plastic materials. Therefore, copper and its copper-containing materials have been used as fungicides, algicides, fungicides, livestock additives, food additives, plant antibacterial agents, and other preservatives.

In addition, it has been reported that these substances are effective in reducing sensitization of bacteriophages.

According to the report on the bactericidal effect of organic, copper alloy is involved in the inactivation of pathogens higher than that of stainless steel.

In order to reduce opportunistic infections in hospitals, it was initially recommended to use bronze as a doorknob, but the application of stainless steel in the current hospital environment and equipment is not recommended.

However, it has been suggested that the use of copper alloys in hospital spaces may reduce infection with Clostridium difficile.

Moreover, apoptosis was also shown in the study of aerobic bacteria in the food manufacturing and processing space.

Food poisoning is classified into biological food poisoning, chemical food poisoning, and natural poisoning food poisoning according to the causative substance.

Since about 90% of these food poisonings are caused by biological food poisoning, controlling such food poisoning can be a way to reduce the total number of food poisoning patients.

In Korea, pathogenic E. coli and Salmonella spp. are the biggest problems in these biological, especially bacterial food poisoning factors. Recently, quantitative standards for B. cereus have been established in food standards, and E. sakazakii contamination in infant food. This is emerging as a social issue.

Korean Patent No. 1495608 Korean Patent No. 1259587 Korean Patent Publication No. 2004-0077237 Korean Patent Publication No. 2004-0097421

The present invention has been made in order to solve the above problems, such that a wide jaw shape is positioned at the center of the edge, and the inner or outer peripheral surface of the edge of the thin product is rolled down or rolled down, or the thickness is thickened to a certain thickness at the edge. It can be made lighter by cutting the outer surface of the product, or by rolling it down to the inside of the edge of the thinly made product, and making it thick to maintain a certain thickness at the edge, and to make it lighter by shaving off the inner surface. An object of the present invention is to provide an organic bowl with a processed inner peripheral surface, which solves the conventional problem that the hand or other body may be injured, because the edge is thin and dangerous due to the rigidity of the metal, and a manufacturing method thereof.

In order to solve the above problems, the present invention comprises the steps of: preparing a melt mixed with copper and tin through a continuous casting machine; Discharging the melt from the lower part of the melting furnace to prepare a plate-shaped block; cutting the plate-shaped block into a plate of a certain width, and heating the plate while moving the plate with a roller; cutting the rolled plate into a circular plate by putting the heated plate into a rolling roller; Including the step of cooling the cut circular plate material with salt water, the predetermined shape is processed to be dried toward the inner peripheral surface.

In the heating step, a carbon heating rod is heated through a carbon heating heater unit in which a plurality of carbon heating rods are mounted.

In the cutting step, the cutting surface is cut while simultaneously injecting a washing solution.

At least one selected from phosphorus (P), silicon (Si), magnesium (Mg), calcium (Ca), sodium (Na), aluminum (Al) or manganese (Mn) is further melted in the melt.

The processing to be rolled toward the inner circumferential surface is rolled down into the edge, and the surface of the outer circumferential surface of the edge is machined to be cut down.

The present invention comprises the steps of preparing a melt mixed with copper and tin through a continuous casting machine; Discharging the melt from the lower part of the melting furnace to prepare a plate-shaped block; manufacturing the plate-shaped block into a plate of a certain width by cutting the plate-shaped block; first heating the plate while moving it with a roller; putting the heated plate material into a roller and performing primary rolling; cutting the first rolled plate material into circular pieces; putting the circular piece into a roller and performing secondary rolling; Secondary heating while transferring the second rolled plate material to a conveyor; manufacturing a predetermined shape by pressing the second heated plate; cooling the predetermined shape with brine at a weight ratio of 2 weight ratios of the total weight of water; processing the cooled predetermined shape from the inside to the outside through a lathe; and a gloss step of adding gloss to the predetermined shape.

In the first heating step and the second heating step, the carbon heating rod is heated through a carbon heating heater unit in which a plurality of carbon heating rods are mounted.

The predetermined shape is processed to be rolled toward the inner circumferential surface.

The present invention made as described above solves the conventional problems in which the edges are thin because they are thick, and the edges are thin and not elegant, and the thin edges are dangerous due to the rigidity of the metal, and the hand or other body can be injured.

In addition, the present invention can effectively reduce cross-contamination of major Gram(-) bacteria including Salmonella spp.

In addition, the present invention can reduce the risk of fire due to electric short circuit, electric shock, or overheating by using a carbon heating element, and can reduce power consumption.

In addition, the present invention has a wide chin (shape) located at the center of the edge, and rolled down or inside the edge (inner circumferential or outer circumferential surface) of the thinly made product, or thickened to maintain a constant thickness at the edge and surface the outside. It can be made lighter by shaving, or rolled down to the inside of the edge of a thin product, and made thick to maintain a constant thickness at the edge and to be lightened by chamfering the inner surface.

1 is a photograph showing the characteristics of the hair core method according to the prior invention and the organic method of the present invention, and the experimental results (SEM photos) of the Korea Research Institute of Chemical Convergence.
2 is a view systematically showing the reason why it is difficult to make an organic bowl with good sterilization power and light according to the prior art.
Figure 3 is a view showing a method of manufacturing an organic bowl processed the inner peripheral surface according to an embodiment of the present invention.
4 is a view showing in detail a bowl shape, a rolled position, a shape, and the like according to another embodiment of the present invention.
5 is a graph showing the sterilization power test data according to an embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. For example, the outer circumferential surface refers to the outer surface or the outside of the bowl, and the inner circumferential surface is a portion corresponding to the outer circumferential surface of the inner surface of the bowl. It should be noted that in each drawing, the same member is shown with the same reference numerals in some cases. In addition, detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

1 is an SEM photograph showing a case in which the number of heating and rolling decreases when going from (a; present invention) to (b; conventional invention).

Specifically, the rice core method for organic bowls with inner peripheral surfaces according to the present invention is a technology that has been studied for many years, and the noodles are evenly made 3 to 4 times or more through rolling of 350 to 450 tons and second rolling of 150 to 250 tons. repeat to do

If you do it by hand, if you repeat it with a strong force to even out the noodles 3 to 4 times or more with 4 to 6 kg of rolling, air bubbles will disappear and you can manufacture a light weight organic bowl.

In other words, the more you tap repeatedly with such a strong force, the more bubbles disappear, so it becomes the basis for the birth of a light hair core.

As shown in Figure 3, the present invention is a step (S11) of producing a melt mixed with copper and tin through a continuous casting machine (1), the melt is discharged from the lower part of the melting furnace to produce a plate-shaped block (S12) , cutting the plate-shaped block with a cutter 2 to produce a plate of a certain width (S13), moving the plate with a roller and first heating it with a heater 3 (S14, S15), the heated Putting the sheet into a roller and performing primary rolling with a rolling mill (S16), cutting the first rolled sheet into circular pieces with a cutter (5) (S17), putting the circular piece into a roller and rolling machine ( 6) of secondary rolling (S18), secondary heating with a heater 7 while transferring the secondary rolled plate to a conveyor (S19), and pressing the secondary heated plate with a press machine 8 to manufacture a predetermined shape (S20), cooling the predetermined shape with brine in a 2 weight ratio of the total weight of water in the cooler 9 (S21), the cooled predetermined shape through the processing machine 10 from the inside to the outside It includes a step of processing in the side direction (S22), and a polishing step (S23) of adding a gloss to the predetermined shape.

Hereinafter, a method for manufacturing an organic bowl with an inner circumferential surface for carrying out the present invention will be described in detail.

As an embodiment of the present invention, a melt mixed with copper and tin is prepared through a continuous casting machine.

And the melt is discharged from the lower part of the melting furnace to prepare a plate-shaped block.

The plate-shaped block is cut to make a plate of a certain width, and the plate is heated while moving with a roller.

Here, the step of rolling after heating may be repeated a plurality of times.

Subsequently, the heated plate is put into a rolling roller and the rolled plate is cut into a circular plate.

Finally, the cut round plate is cooled with brine.

Specifically, the present invention provides a step (S11) of producing a melt mixed with copper and tin through a continuous casting machine (1), a step of discharging the melt from the lower part of the melting furnace to produce a plate-shaped block (S12), the plate-shaped A step (S13) of cutting a block with a cutter (2) to produce a plate of a certain width, a step of primary heating while moving the plate with a roller (S14, S15), a rolling mill (4) by putting the heated plate into a roller ) to first rolling (S16), cutting the first rolled sheet material into circular pieces with a cutter (5) (S17), putting the round pieces into a roller and performing secondary rolling with a rolling mill (6) (S18), a step of heating the secondary rolled plate material with a heater 7 while transferring it to the conveyor (S19), pressing the secondary heated plate material with a press machine 8 to produce a predetermined shape (S20) ), cooling with brine in a 2 weight ratio of the total water weight in the constant-shaped water cooler 9 (S21), processing the cooled predetermined-shaped object from the inside to the outside through the processing machine 10 (S22) , and a polishing step (S23) of adding gloss to the predetermined shape.

By evenly spraying the salt water inside by the injection nozzle to increase the surface area, the temperature of the water is raised in an instant by using the high-temperature radiant heat generated by a plurality of carbon heating rods with a high heat transfer rate.

In addition, the heaters 3 and 7 and the rolling mills 4 and 6 may use the same device, or devices of different types or temperatures may be used.

The (S17) cutting step is cutting while simultaneously injecting high-pressure air into the cutting surface.

After the step (S22), the predetermined shape is processed to be rolled toward the inner circumferential surface, and the conventional thin edge is wobbly, and the thin edge is not elegant, and the thin edge is dangerous due to the rigidity of the metal, and the hand or other body can be injured. Solved the problem.

Here, the standard of lightness is 11cm (±5mm) in upper diameter, 6.5cm (±5mm) in height, 6cm (±5mm) in lower diameter, 350ml (±20ml) in capacity, and 200g or less in weight.

In the present invention, a wide jaw (shape) is placed on the edge, and the thinly made product is rolled down or out of the edge (inner circumferential or outer circumferential surface).

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등을 형상을 갖는다.For example, the center part of the edge of the organic bowl

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have a shape on the back.

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중 하나로 이루어진다.The shape is detailed

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made up of one

As an embodiment of the present invention, it may have a shape as shown in FIG. 4 .

Specifically, as a Dodam style shape (the shape of the inner surface of the present invention) (a) Circular: It is applied to a round shape or any oval shape (both wide or narrow in either direction), and it is light so that the edges Applies to all shape shapes that make them wider and thicker.

(b) Triangle: All equilateral triangles, right-angled triangles, and isosceles triangles are applied (all rounded corners are also applied).

(c) Rectangle: All squares, rectangles, rhombuses, and trapezoids are applied (all rounded corners are also applied).

(d) Style position: It is light, so it is applied regardless of the position when making the edges wide and thick.

That is, the present invention allows a thick chin (on style position) to be located in the center, roll the edge of the thinly made product outward, roll the edge of the thinly made product inward, or thicken the product to achieve a certain thickness at the edge. It can be kept and made lighter by chamfering the outer surface.

Alternatively, it can be made lighter by making the organic bowl product thick, maintaining a constant thickness at the edge, and chamfering the inner surface.

On the other hand, if you look at the shape of the Dodam style bowl in FIG. 4, the present invention is applied to all bowl shapes that are light and make the edges wider and thicker.

That is, the present invention is light and the manufacturing method of organic silver that makes the edges wide and thick is applied to all manufacturing methods such as forging, casting, or manual work.

At this time, it rolls down the edge of the thinly made product, thickens it to maintain a constant thickness at the edge, and shaves off the outer surface to make it lighter, or rolls it down to the inside of the edge of the thin product and thickens it to maintain a constant thickness at the edge It can be made lighter by chamfering the inner surface.

At this time, it is installed so as to reciprocally move the workpiece of a certain shape while the shaft adsorbing the processed organic bowl on the inner circumferential surface in close contact with the mold rotates.

Therefore, the present invention can be applied regardless of the position when making the edge wide and thick because it is light, for example, it is applied to all bowl shapes that make the edge wide and thick because it is light, or is applied regardless of the shape when making the edge wide and thick because it is light. It is applied to all manufacturing methods such as forging, casting, and manual work of the manufacturing method.

Meanwhile, in the heating step, the heater 7 heats through a carbon heating heater unit in which a plurality of carbon heating rods are mounted.

The carbon heating rod has excellent radiant heat transfer ability and has a characteristic of passing through a vacuum state, and since radiant heat transfers heat at the speed of light, the temperature increase effect is very high, and the energy saving effect is excellent.

A heating unit for accommodating a plurality of carbon heating rods to generate high-temperature radiant heat and supplying the generated high-temperature radiant heat into the high-pressure tank is provided. The heating unit is provided inside the high-pressure tank to serve to heat the hot water, and the quantity and shape thereof may be variously configured according to the arrangement form.

The carbon heating rod is accommodated in a circular glass tube and is formed by winding a carbon heating element formed by twisting two or more carbon fiber bundles in a long spiral form in the longitudinal direction, so that it is possible to effectively increase the heating temperature.

The carbon heating element takes a shorter time to generate heat compared to the conventional nichrome wire, and has a very long lifespan due to less change in physical properties after heat generation.

Since the present invention is a heating method according to radiation and conduction by the resistance heat of the carbon heating element, unlike the combustion type, it does not generate air pollutants, and by flowing a weak current, it rapidly heats up a high temperature with little power consumption. It is possible to reduce the risk of fire due to electric leakage, electric shock, or overheating, which is frequently occurring in the heat sink, and reduces power consumption.

In another embodiment, a plurality of carbon heating rods are housed and using radiant heat generated, a heating chamber of 100° C., a primary heating chamber of 130 to 150° C., and a secondary heating chamber of 200° C. are formed, and between each heating chamber A connection path is formed.

Due to this multi-heating, it is possible to solve the problems of being thin and ruffled at the edges, thin and unpretentious, and thin at the edges and lowering the rigidity of the metal.

Experimental results and consideration of sterilization effect of organic bowls

As shown in Figure 5, the strain Salmonella enterica subsp used for verification of the bactericidal effect in the present invention. Typhimurium ATCC 12023, S. Typhimurium ATCC 14028, E. coli 0157:H7 NCTC 12079, E, coli 0157:H7 505B, E. sakazakii ATCC 51329, E sakazakii NCTC 2949, B. cereus KCCM 1094, B. cereus KCCM 40935, etc. this was used

The cultured medium was dropped into each metal bowl and recovered after a certain period of time to measure the number of viable cells in the selective medium.

In the present invention, as an organic comparative example, stainless steel, tin, copper, and bronze copper alloy were used to make certain sizes.

These stainless steels are composed of 74% Fe, 18% Cr, and 8% Sn, organic is composed of 78% Cu and 22% Sn, and tin and copper alloys are made of 100% tin and copper, respectively.

How to measure the sterilization power of organic dishes

Kinds Contents tin1 1 time heating and rolling tin2 2 heating and rolling tin3 2 times heating, rolling and pressing tin1' 1 heating and rolling + inner peripheral processing tin2' 2 times of heating and rolling + inner circumferential processing tin3' 2 times of heating, rolling and pressing + inner circumferential processing

In this experiment, the number of viable cells according to exposure time was measured on stainless steel, organic bowl (tin1 ~ tin3' in Table 1), 100% tin, and 100% copper alloy as control metals to determine the antibacterial activity.

As shown in Table 1 above, the organic bowl according to the present invention was produced by heating and rolling (tin1), heating and rolling (tin2) twice, heating, rolling, and pressing (tin3) twice according to the present invention. did.

And processing (tin1', tin2', tin3) to be dried on the inner circumferential surface of each produced by the above heating and rolling (tin1), second heating and rolling (tin2), and second heating, rolling and pressing (tin3) processes (tin1', tin2', tin3) ') to observe the strain state around the inner surface.

In addition, a total of 8 strains were tested, and two S. Typhimurium, E, coli 0157:H7, B. cereus, and E. sakazakii test strains were tested three times.

In the case of S. Typhimurium, all 8 log CFU / mL of 100% copper was killed in 24 hours, and the organic dish according to the present invention showed a viable cell count of 4 log CFU / mL at 24 hours, and thereafter, the time It appeared to increase slightly over time.

In addition, in order to study the antimicrobial properties of organic materials, which are traditional tableware, after drying on the surface of these alloys with an initial number of 7~8 log CFU/mL of bacteria, the viability was immediately determined. As the number of viable cells was maintained at 3 to 4 log CFU/mL, it showed a high survival rate regardless of the type of metal.

However, Gram(-) bacteria, S. Typhimurium, E. coli, and E. sakazakii, showed high antibacterial properties in the order of copper surface> organic bowl inner surface curled surface> tin surface> stainless steel surface.

Therefore, when food poisoning bacteria such as Typhimurium, E.coli 0157, and E.sakazakii are exposed to the organic material of bronze brassware that we have traditionally used, the organic bowl with the inner circumferential surface according to the present invention is manufactured as food because it kills more easily than stainless steel. It can be used in the environment to reduce cross-contamination.

In conclusion, in order to study the antimicrobial properties of the organic material of our traditional tableware brassware, which is a bronze alloy, the culture medium of Salmonella spp., E. coli 0157, E. sakazakii, and B. cereus, which are major food poisoning bacteria, was used in an organic bowl (the present invention); After exposure and drying to copper, tin, and stainless steel alloys, the degree of viability was analyzed.

As a result of measuring the sterilization power on these metal surfaces, Gram(-) bacteria, S. Typhimurium, E. and E. sakazakii showed the highest antibacterial properties in the order of copper, organic surface, tin surface, and stainless steel metal surface.

However, the sterilization effect of Gram(+) hardly appeared on any metal surface.

^{The copper ion (Cu +2} ) minimum growth inhibitory concentration of S. Typhimurium, E. coli and E. sakazakii was 25 ppm, but that of B. cereus was high at 50 ppm.

Therefore, the organic material according to the present invention, which has a strong hardness unlike copper, can effectively reduce cross-contamination of major Gram(-) bacteria including Salmonella spp.

Experimental results and consideration of sterilization effect of organic bowls with inner peripheral surface

As shown in FIGS. 5 a and 5b , the organic bowl processed with the inner peripheral surface according to the present invention has increased sterilization power in the order of tin1>tin2>tin3>tin1'>tin2'>tin3' Compare with organic bowls and explain.

Here, the sterilization effect measurement position is the inner peripheral surface of one of the shapes of FIG. 4 or its periphery.

As shown in Figure 5, it is a view comparing the organic bowl of the present invention (tin3') and the conventional organic bowl.

In stainless steel and tin alloy, even after 72 hours with a gentle slope, the number of viable cells of 6 log CFU/mL was maintained and only slight death occurred, which is also caused by drying rather than the effect of metal (Fig. 5a).

E. coli 0157 showed a sharp overall slope and a decrease in the number of viable cells. It was found that both copper and organic matter according to the present invention died within 48 hours, and in stainless steel and tin alloy, 1-2 log CFU up to 72 hours. /mL of viable cells was measured (Fig. 5b).

In the case of sakazakii, the results were similar to those of Typhimurium (FIG. 5c). In summary, Gram(-) bacteria Typhimurium, E. coli, and sakazakii are 100% copper ㅋ Organic bowl (tin1>tin2>tin3>tin1'>tin2'>tin3')> 100% tin>Stainless steel showed high antibacterial properties.

However, Gram(+) bacteria, B., maintained the number of viable cells at 3 to 4 log CFU/mL after 24 hours, so it seems to maintain the number of viable cells regardless of the type of metal (Fig. 5d).

In the measurement of the antibacterial properties of the organic dish according to the present invention, when E. coli and S. Typhimurium were cultured at 25° C. for 16 hours, the number of viable cells ^{was 10 7} to 10 ^{8 CFU/mL.}

In addition, the Gram(-) strains E. coli and S. Typhimurium reported that the antibacterial effect was higher than the Gram(+) strains B. cereus and S. aureus, showing the same results.

Judging from the above results, organic material seems to have a greater effect on killing contaminated bacteria than stainless steel, and its use in food storage space is expected to reduce cross-contamination.

Analysis of bactericidal power by copper ion concentration for each bacteria In order to know the respective bacterial inhibitory concentration for copper ions, 1 mL of CuS04 aqueous solution dissolved in distilled water was mixed with 9 mL of bacteria-containing liquid to determine the final concentration of the inhibitory concentration of 0, 10, 25, 50 ppm. adjusted to be possible. The target strains were S. Typhimurium ATCC 14028, B. cereus KCCM 40935, E, coli 0157:H7 505B, E. sakazakii ATCC 51329.

According to the results, the minimum growth inhibitory concentration of each copper (Cu2+) ion was 25 ppm for S. Typhimurium, 50 ppm for B. cereus, and 25 ppm for E. coli 0157: H7 and E. sakazakii ATCC 51329.

Although the results of this experiment seem to inhibit growth at a rather high concentration, there is a 15 ppm interval between 10 and 25 ppm to obtain similar results.

Because the growth inhibitory concentration of each bacteria is different, it can be considered that each bacteria has a different mechanism of overcoming copper toxicity.

For example, Gram(+) bacteria, B. cereus and S. aureus, showed relatively high growth inhibitory concentration and thus high resistance to copper ions.

That is, in the case of copper (100%) metal, the mortality rate is excellent, but it is easy to deform and causes corrosion and severe discoloration, so it is difficult to apply to the actual kitchen.

Therefore, when the organic bowl with strong hardness according to the present invention, which has less discoloration and becomes brighter as it is used, is applied to the kitchen environment, effective sterilization of Gram(-) bacteria including sakazakii can be achieved.

On the other hand, as another embodiment of the present invention, the charger connected to the solar panel supplying power to the rolling mill 6 and the heater 7 through a reverse current prevention diode for energy saving and a battery connected through a reverse current prevention diode again. do.

Charging connected to the solar panel supplying power to the rolling mill 6 and the heater 7 through a reverse current prevention diode, and the battery connected through a reverse current prevention diode again receives the direct current (DC) of the battery and receives an alternating current (DC) ), an AC load is connected to the inverter that converts it to use.

In addition, the rolling mill (6), the heater (7) can be used instead of a heating furnace for rolling, and the longer the use, the wider the temperature distribution and pressure distribution. Since it can be controlled stably, it is possible to solve the problem of poor metal rigidity during mass production.

In particular, it can be controlled using the MIMO characteristic of the MFA temperature controller to prevent temperature hunting.

Therefore, quality control due to unstable control characteristics can be prevented in advance.

In addition, as the vertical cut surface of the cold air outlet of the cooler 9 has a “ㅁ” structure in the form of a square column or a cuboid, it can be accurately injected on the edge position surface that maintains a constant thickness, so it can be applied to other parts of thinly made products. It is possible to prevent problems in quality from being emitted in advance.

1: Continuous casting machine
2: Cutter
3: heater
4: rolling mill
5: Cutter
6: rolling mill
7: heater
8: press machine
9: Cooler
10: processing machine

Claims (8)

Preparing a melt in which copper and tin are mixed through a continuous casting machine;
Discharging the melt from the lower part of the melting furnace to prepare a plate-shaped block;
cutting the plate-shaped block into a plate of a certain width, and heating the plate while moving the plate with a roller;
cutting the rolled plate into a circular plate by putting the heated plate into a rolling roller;
Including; cooling the cut circular plate material with brine;
The method for manufacturing an organic bowl processed with an inner peripheral surface, characterized in that the predetermined shape is processed to be rolled toward the inner peripheral surface. According to claim 1,
The heating step is an organic bowl with an inner circumferential surface, characterized in that heating through a carbon heating heater in which a plurality of carbon heating rods are mounted. According to claim 1,
In the melt, at least one selected from phosphorus (P), silicon (Si), magnesium (Mg), calcium (Ca), sodium (Na), aluminum (Al) or manganese (Mn) is further melted. Processed organic bowl manufacturing method. According to claim 1,
Processing so as to be rolled toward the inner peripheral surface is a method of manufacturing an organic bowl processed with an inner peripheral surface, characterized in that the processing so as to be rolled down in the edge, the surface of the outer peripheral surface of the edge is cut down. Preparing a melt in which copper and tin are mixed through a continuous casting machine;
Discharging the melt from the lower part of the melting furnace to prepare a plate-shaped block;
manufacturing the plate-shaped block into a plate of a certain width by cutting the plate-shaped block;
first heating the plate while moving it with a roller;
putting the heated plate material into a roller and performing primary rolling;
cutting the first rolled plate material into circular pieces;
putting the circular piece into a roller and performing secondary rolling;
Secondary heating while transferring the second rolled plate material to a conveyor;
manufacturing a predetermined shape by pressing the second heated plate;
cooling the predetermined shape with brine at a weight ratio of 2 weight ratios of the total water weight;
processing the cooled predetermined shape from the inside to the outside through a lathe;
A method of manufacturing an organic bowl processing an inner circumferential surface comprising; a gloss step of adding gloss to the predetermined shape.
6. The method of claim 5,
In the first heating step and the second heating step, a method of manufacturing an organic bowl with an inner peripheral surface, characterized in that heating through a carbon heating heater unit in which a plurality of carbon heating rods are mounted. 6. The method of claim 5,
The method for manufacturing an organic bowl processed with an inner peripheral surface, characterized in that the predetermined shape is processed to be rolled toward the inner peripheral surface. An organic bowl with an inner circumferential surface manufactured by the manufacturing method of claim 5 .

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