WO2021158064A1 - 부식 방지 기능을 갖는 구리 합금 보온 용기 - Google Patents
부식 방지 기능을 갖는 구리 합금 보온 용기 Download PDFInfo
- Publication number
- WO2021158064A1 WO2021158064A1 PCT/KR2021/001555 KR2021001555W WO2021158064A1 WO 2021158064 A1 WO2021158064 A1 WO 2021158064A1 KR 2021001555 W KR2021001555 W KR 2021001555W WO 2021158064 A1 WO2021158064 A1 WO 2021158064A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- copper alloy
- anode
- thermal insulation
- inner container
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G23/00—Other table equipment
- A47G23/04—Containers with means for keeping food cool or hot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/10—Electrodes characterised by the structure
Definitions
- the present invention relates to a metal container for holding a beverage, and more particularly, an inner container made of a copper alloy having a sterilizing effect, an outer container surrounding the outer surface of the inner container, and a spacer layer formed between the inner container and the outer container; , made of a metal material that is easier to oxidize than the inner container, and is composed of an anode inserted into the spacer layer to contact the outer surface of the inner container, so that the anode acts as a sacrificial metal when storing beverages inside the inner container, so that the surface of the container made of copper alloy It relates to a copper alloy thermal insulation container capable of preventing corrosion.
- the present invention can also be applied to a silver thermal insulation container made of silver having a sterilizing effect.
- a copper alloy container called "bangjja" has been traditionally used.
- the bangja was manufactured by forging a non-ferrous alloy based on copper, and the alloy ratio was standardized with a content ratio of 78% copper and 22% tin.
- Bangjja not only has a golden appearance, but also reacts with toxic substances harmful to the human body and adsorbs on the surface of the copper alloy to form stains, so that toxic substances contained in food stored in the copper alloy can be detected.
- the tumbler is made with a cup-shaped container that is narrow and deep so that you can drink it with beverages such as coffee in it for a long time and hold it easily with one hand. It is hygienically undesirable.
- Korean Patent Application Laid-Open No. 10-2007-0114678 the inner and outer surfaces of the container are formed of bangja and stainless steel, respectively, to reduce the manufacturing cost of the container and prevent surface corrosion of stainless copper.
- An alloy and a manufacturing method are proposed, and in Korean Patent Laid-Open No. 10-2008-0010180, the air filled in the space formed between the double structure of the bangja and the container made of stainless steel blocks heat transfer to the outside to keep the container warm.
- the double-structured Bangjja thermal insulation container with stainless steel as above is not suitable for application to beverage insulation containers such as tumblers, which must be used in an environment where the surface of Bangjja is in direct contact with hot beverages for a long time and is prone to corrosion. had
- An embodiment of the present invention aims to provide an effective method of preventing corrosion and surface discoloration of a copper alloy thermal insulation container.
- an object of the present invention is to improve the sanitary state of the thermal insulation container by applying a copper alloy having a sterilizing effect inside the thermal insulation container.
- the insulation performance of the copper alloy thermal insulation container is improved to extend the heat retention time of the beverage contained in the thermal insulation container, and the heat of the beverage is prevented from being transmitted directly to the user when the hot beverage is stored, thereby improving portability. aim to improve.
- an inner container made of a copper alloy, an outer container surrounding the outer surface of the inner container, the outer surface of the inner container and the inner surface of the outer container are spaced apart from each other It is characterized in that it consists of a spacer layer filled with air or electrolyte to be formed into a closed space, and an anode which is made of a metal material that is easier to oxidize than the inner container and is inserted into the spacer layer to contact the outer surface of the inner container.
- An insulating layer may be formed on the surface in contact with air or electrolyte on either side or both sides of the inner container or outer container so that dissimilar metal corrosion does not occur between the inner and outer container.
- the anode is made of an aluminum alloy, and the surface area of the anode is formed to be smaller than the surface area of the inner group.
- the anode has a bell shape, and the rim is joined to the lower inner surface of the outer container to form a first spacer layer and a second spacer layer on the outer and inner sides of the anode, respectively, and the inside of the first spacer layer is filled with air or It is preferable that a vacuum state is established, and an electrolyte is filled inside the second spacing layer.
- an insulating layer is formed on one or both surfaces of the inner container or the outer container.
- the amount of ionization of the anode acting as a sacrificial metal is very small compared to the surface area of the copper alloy thermal insulation container in which the beverage is contained, there is an effect that the anode has a semi-permanent lifespan.
- the corrosion reaction of the anode is promoted by the area effect of dissimilar metal contact corrosion, thereby preventing the occurrence of copper alloy surface corrosion more effectively.
- the inner container of the heat preservation container using a copper alloy having a sterilization effect, there is an effect of preventing the proliferation of harmful microorganisms in the heat preservation container and improving the hygiene condition.
- the temperature of the beverage is maintained constant for a long time, and the outer container is excessively heated when the hot beverage is stored in the insulation container. This has the effect of preventing the user of the thermal insulation container from being burned.
- Figure 1a is a view showing the cross-sectional structure of the copper alloy thermal insulation container of an embodiment according to the present invention
- Figure 1b is a view of another embodiment.
- Figure 2 is a view showing an example of the arrangement of the spacer layer inside the insulation container divided by the anode cross-sectional shape and anode of the copper alloy insulation container according to the present invention.
- Figure 3 is a view showing an example of the configuration of the insulating layer formed in the copper alloy thermal insulation container according to the present invention.
- FIG. 4 is a view showing an example of a copper alloy thermal insulation container filled with an electrolyte inside the anode according to the present invention.
- the outer container 20 surrounds the outer surface of the inner container 10 made of copper alloy, and the outer surface and the outer container of the inner container 10 The inner surface of (20) is spaced apart from each other to form a spaced layer 30 between the inner container 10 and the outer container 20.
- the anode 40 is inserted so as to contact the outer surface of the inner group 10, the anode 40 is made of a metal material that is more easily oxidized than the inner group 10, and acts as a sacrificial metal as an anode.
- the copper alloy surface of the inner group 10 acting as a cathode (cathode) is prevented from being discolored or corroded, and the anode 40 is preferably made of an aluminum alloy.
- the surface area of the anode 40 made of a metal material that is easily oxidized is formed to be larger than the surface area of the inner group 10, the copper alloy surface of the inner group 10 due to the area effect of galvanic corrosion Since the anti-corrosion effect may be reduced, the surface area of the anode 40 is preferably formed smaller than the surface area of the inner group (10).
- the thermal insulation container 1 for the purpose of holding a beverage, such as a tumbler
- the amount of ionization of the anode 40 acting as a sacrificial metal compared to the surface area of the inner container 10 corresponds to a very small number
- the anode 40 is semi-permanent. have a human lifespan.
- the spacer layer 30 is made to be filled with air as a closed space, so that it has a corrosion-preventing effect, and at the same time blocks heat transfer between the inner container 10 and the outer container 20 to be stored in the inner container 10
- the temperature change of the beverage is minimized to keep the temperature of the beverage constant for a long time, and in particular, when the thermal insulation container 1 is a tumbler, when the hot beverage is stored in the inner container 10, the outer container 20 is excessively heated. It is possible to prevent the user from getting burned in the heat preservation container 1 .
- the anode 40 forms a bell shape, and by bonding the rim to the lower inner surface of the outer container 20, two sealed spaces can be formed inside the separation layer 30, Accordingly, the first spacer layer 31 and the second spacer layer 32 may be respectively formed on the outside and the inner side of the anode 40 .
- the first spacer layer 31 is filled with air or formed in a vacuum state, and as shown in FIG. 4 , the second spacer layer 32 has an electrolyte (e) made of air or liquid or gel inside. It can be charged, the electrolyte (e) charged inside the second spacing layer 32 promotes the movement of electrons by the potential difference generated according to the difference in ionization tendency between the inner group 10 and the anode 40, the anode By allowing the function of the sacrificial metal of (40) to occur smoothly, the surface discoloration or corrosion of the inner group 10 copper alloy can be more effectively prevented.
- the beverage When the beverage is stored in the container 10, when the air and the electrolyte (e) are respectively filled inside the first separation layer 31 and the second separation layer 32, the beverage functions as another electrolyte (e).
- the anode 40 acts as a sacrificial metal and the beverage stored in the inner container 10 is emptied, the occurrence of a dissimilar metal corrosion effect between the inner container 10 and the anode 40 is limited, so that the copper of the inner container 10 is By delaying the corrosion of both the alloy surface and the anode 40, a shortened life of the anode 40 is prevented.
- the outer container 20 not only performs a function of preventing the air or electrolyte (e) charged in the spacer layer 30 from leaking to the outside of the thermal insulation container 1, but also the It maintains the temperature and has the function of preventing the user's body from being burned by direct contact with the inner container 10 in which the hot beverage is placed, and functions such as aesthetics, portability, and heat insulation of the thermal insulation container 1 Considering this, various materials such as synthetic resin, wood or stainless steel can be selected and manufactured.
- the outer container 20 is made of stainless steel and other metal materials that may cause corrosion, dissimilar metal corrosion may occur between the inner container 10 and the outer container 20.
- the metal element has a lower ionization tendency than the copper alloy
- the copper alloy of the inner container 10 acts as a sacrificial metal to promote discoloration or corrosion of the inner container 10, so that the outer container 20 is made of a metal material
- the insulating layer 50 may be formed on either one or both surfaces of the inner container 10 or the outer container 20 as shown in FIG. 3 , and the insulating layer 50 has an insulating effect of the outer container 10 . to further improve the thermal insulation performance of the thermal insulation container (1), to prevent the user from getting burns due to overheating of the external container (20) by a hot beverage, The outer container 20 is prevented from being corroded by the electrolyte (e) filled in the spacer layer 32 .
- the present invention can be applied to a metal having a sterilizing effect, so it can be applied to a silver insulating container other than a copper alloy.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Thermal Sciences (AREA)
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- Table Devices Or Equipment (AREA)
Abstract
Description
Claims (6)
- 음료를 담는 보온 용기(1)에 있어서,구리 합금으로 된 내용기(10);내용기(10)의 외측면을 둘러싸는 외용기(20);내용기(10)의 외측면과 외용기(20)의 내측면이 서로 이격되어 밀폐공간으로 형성되고 공기 또는 전해질이 충전된 이격층(30);내용기(10)보다 산화되기 쉬운 금속 재질로 이루어지고, 내용기(10) 외표면과 접촉하도록 이격층(30) 내에 삽입되는 애노드(anode,40);로 구성되는 것을 특징으로 하는 구리 합금 보온 용기.
- 제1항에 있어서,상기 내용기(10)와 외용기(20)간 이종금속부식이 발생하지 않도록 내용기(10)나 외용기(20)의 어느 일측 또는 양측의 공기 또는 전해질과 접촉되는 표면에 절연층(50)이 형성되는 것을 특징으로 하는 구리 합금 보온 용기.
- 제1항에 있어서,상기 애노드(40)는 알루미늄 합금으로 이루어지는 것을 특징으로 하는 구리 합금 보온 용기.
- 제1항에 있어서,상기 애노드(40)의 표면적은 내용기(10)의 표면적보다 작게 형성되는 것을 특징으로 하는 구리 합금 보온 용기.
- 제1항에 있어서,상기 애노드(40)는 종 형상을 이루고, 테두리가 외용기(20) 내측면 하부에 접합되어, 애노드(40)의 외측과 내측에 각각 제1 이격층(31) 및 제2 이격층(32)을 형성하고,상기 제1 이격층(31) 내부에는 공기가 충전되거나 진공 상태를 이루고, 제2 이격층(32) 내부에는 전해질(e)이 충전되는 것을 특징으로 하는 구리 합금 보온 용기.
- 제5항에 있어서,상기 내용기(10)나 외용기(20)의 어느 일측 또는 양측 표면에는 절연층(50)이 형성되는 것을 특징으로 하는 구리 합금 보온 용기.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2020-0014032 | 2020-02-06 | ||
KR1020200014032A KR102140925B1 (ko) | 2020-02-06 | 2020-02-06 | 방짜 보온 용기 |
KR10-2020-0090688 | 2020-02-06 | ||
KR1020200090688A KR102245071B1 (ko) | 2020-07-22 | 2020-07-22 | 방짜 보온 용기 |
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WO2021158064A1 true WO2021158064A1 (ko) | 2021-08-12 |
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PCT/KR2021/001555 WO2021158064A1 (ko) | 2020-02-06 | 2021-02-05 | 부식 방지 기능을 갖는 구리 합금 보온 용기 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001519478A (ja) * | 1997-10-02 | 2001-10-23 | フルー・コーポレイシヨン | カソード防食方法及び装置 |
KR20080010180A (ko) * | 2006-07-26 | 2008-01-30 | 오택문 | 이중구조의 방짜유기 및 그 제조방법 |
KR20110122920A (ko) * | 2010-05-06 | 2011-11-14 | 노인호 | 부식이 방지되는 방짜 및 그 제조방법 |
CN205525833U (zh) * | 2016-02-20 | 2016-08-31 | 宁波大学 | 一种化工原料桶 |
KR101981276B1 (ko) * | 2018-09-11 | 2019-05-22 | 주식회사 그라첸 | 이중 단열 구조의 음식물 조리용기 |
KR102140925B1 (ko) * | 2020-02-06 | 2020-08-04 | 김현애 | 방짜 보온 용기 |
-
2021
- 2021-02-05 WO PCT/KR2021/001555 patent/WO2021158064A1/ko active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001519478A (ja) * | 1997-10-02 | 2001-10-23 | フルー・コーポレイシヨン | カソード防食方法及び装置 |
KR20080010180A (ko) * | 2006-07-26 | 2008-01-30 | 오택문 | 이중구조의 방짜유기 및 그 제조방법 |
KR20110122920A (ko) * | 2010-05-06 | 2011-11-14 | 노인호 | 부식이 방지되는 방짜 및 그 제조방법 |
CN205525833U (zh) * | 2016-02-20 | 2016-08-31 | 宁波大学 | 一种化工原料桶 |
KR101981276B1 (ko) * | 2018-09-11 | 2019-05-22 | 주식회사 그라첸 | 이중 단열 구조의 음식물 조리용기 |
KR102140925B1 (ko) * | 2020-02-06 | 2020-08-04 | 김현애 | 방짜 보온 용기 |
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