KR101516312B1 - Method of producing a tray for transferring cells - Google Patents
Method of producing a tray for transferring cells Download PDFInfo
- Publication number
- KR101516312B1 KR101516312B1 KR1020130121437A KR20130121437A KR101516312B1 KR 101516312 B1 KR101516312 B1 KR 101516312B1 KR 1020130121437 A KR1020130121437 A KR 1020130121437A KR 20130121437 A KR20130121437 A KR 20130121437A KR 101516312 B1 KR101516312 B1 KR 101516312B1
- Authority
- KR
- South Korea
- Prior art keywords
- tray
- extruded sheet
- pet
- antistatic coating
- weight
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
- B29C51/105—Twin sheet thermoforming, i.e. deforming two parallel opposing sheets or foils at the same time by using one common mould cavity and without welding them together during thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
- C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/05—Forming flame retardant coatings or fire resistant coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/052—Forming heat-sealable coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Packaging Frangible Articles (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
본 발명은 전지 이송용 트레이의 제조방법에 관한 것으로, 구체적으로는 진공 성형으로 제조되어, 정전기 발생 및 이물 제거의 문제점이 없으면서도, 제조단가를 낮출 수 있는 전지 이송용 트레이의 제조방법에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a tray for transferring a battery, and more particularly, to a method of manufacturing a tray for transferring a battery, which is manufactured by vacuum molding, .
Description
본 발명은 전지 이송용 트레이의 제조방법에 관한 것으로, 구체적으로는 진공 성형으로 제조되어, 정전기 발생 및 이물 제거의 문제점이 없으면서도, 제조단가를 낮출 수 있는 전지 이송용 트레이의 제조방법에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a tray for transferring a battery, and more particularly, to a method of manufacturing a tray for transferring a battery, which is manufactured by vacuum molding, .
기존 전지(cell) 포장 이송 관련하여 화성 트레이(tray) 내피용은 사출 형 트레이를 사용하였다. 기존 사출 형 트레이 경우 다양한 전지 모형에 따라 금형을 새로 하나 하나 제작해야 하는 어려움과 생산 수율 저하 및 가격 경쟁력에 많은 어려움이 작용하였다. 또한 사출 형 트레이다 보니 정전기 발생 및 이물 제거에 있어 큰 어려움이 존재하였다.In relation to the transfer of the conventional cell (cell) package, an injection type tray was used for the inner tray of the Mars tray. In the case of conventional injection type trays, it was difficult to produce one new mold according to various battery models, and it was difficult to reduce production yield and price competitiveness. In addition, there was a great difficulty in the generation of static electricity and the removal of foreign matter from the injection type tray.
또한, 전자부품 및 반도체의 고집적화에 따라 정전기 발생에 의한 제품불량에 대한 문제가 대두되면서 정전기에 대한 피해를 최소화하기 위한 많은 노력이 경주되고 있다. 전자부품을 조립하거나 사용하는데 있어 부품에 영향을 미치는 정전기는 작업자의 인체, 작업공간, 부품 자체, 조립 및 포장, 운반 과정에서의 작업자나 포장재료에서 발생되는 것으로, 전자부품의 불량 원인의 큰 비중을 차지하고 있다. 따라서, 완성된 전자부품을 보관 및 운반하는 케이스 및 반도체 또는 전자제품 등의 내외부 소재나 포장재 등의 재료는 대전방지 기능을 가지고 있어야 한다.In addition, due to the high integration of electronic parts and semiconductors, there has been a problem of product defects due to the generation of static electricity, and a lot of efforts have been made to minimize the damage to static electricity. In assembling or using electronic parts, static electricity, which affects components, is generated in the human body, work space, parts themselves, assemblers, packaging, transportation workers, and packaging materials. Respectively. Therefore, a case for storing and transporting completed electronic parts, and materials such as internal and external materials and packaging materials such as semiconductors or electronic products, must have an antistatic function.
그러나, 사출 성형 방식은 대전방지 기능을 부여하기 위하여 사출된 후 대전지 코팅층을 형성하고자 할 때에는 코팅층을 제품 표면에 고르게 형성는데 어려움이 있으므로, 사출품 제조시 대전방지제를 첨가하는 내첨방식형 대전방지제만이 사용될 수 있었다.However, in the injection molding method, it is difficult to uniformly form a coating layer on the surface of a product when an antistatic coating layer is formed after being injected to give an antistatic function. Therefore, an antistatic type antistatic agent Could only be used.
그러나, 기존 내첨방식형의 대전방지제의 경우 카본블랙이나 계면활성제, 금속 산화물을 사용하여 대전성능을 나타내고 있다. 그러나 카본블랙이나, 금속산화물을 첨가하여 사용시 표면저항(10E5Ω/sq.)은 우수하나 분진발생 및 불투명한 단점을 갖고 있다. 계면활성제을 사용한 대전방지의 경우 투명성을 갖고 있으나, migration이 심할뿐 아니라, 온도 및 습도 변화에 아주 민감한 반응을 보이는 단점과 함께 표면저항(10E9Ω/sq 이상)이 증가하는 단점을 갖고 있다.
선행기술: 대한민국 공개특허 10-2013-0081911.
However, in the case of conventional antistatic antistatic agents, charging performance is exhibited by using carbon black, a surfactant, and a metal oxide. However, when carbon black or metal oxide is added, the surface resistance (10E5? / Sq.) Is excellent when used, but it has disadvantages of generation of dust and opaque. The antistatic agent using the surfactant has transparency but is disadvantageous in that the surface resistance (10E9? / Sq or more) is increased with the disadvantage of not only migration but also a reaction sensitive to temperature and humidity change.
Prior Art: Korean Patent Publication No. 10-2013-0081911.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 제조단가를 낮추면서도, 이물질 등을 용이하게 제거할 수 있고, 전자 제품 사용에 적합하도록 표면 전체에 고르게 대전방지 기능을 구비할 수 있는 전지 이송용 트레이의 제조방법을 제공하는 것이다.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for removing foreign matter, And to provide a method of manufacturing a tray for transferring a battery which can be provided with a function of preventing leakage of the battery.
본 발명의 목적을 해결하기 위하여, 본 발명은, 열 가소성 수지를 이용하여 열가소성 압출 시트를 제조하는 단계; 상기 압출 시트를 진공 성형하여 전지(cell) 이송용 트레이를 제조하는 단계; 및 상기 전지가 관통하여 고정될 수 있도록 상기 트레이의 바닥부를 제거하는 단계; 를 포함하는 전지 이송용 트레이의 제조방법을 제공한다.
In order to solve the object of the present invention, the present invention provides a method for producing a thermoplastic extruded sheet, comprising: preparing a thermoplastic extruded sheet using a thermoplastic resin; A step of vacuum-molding the extruded sheet to manufacture a tray for transporting cells; And removing the bottom of the tray so that the battery can be fixed through the tray; The present invention also provides a method of manufacturing a battery transporting tray.
본 발명에 따른 제조방법은, 압출 시트 제조 후 진공 성형에 의해 트레이를 제조하므로, 전지의 모형에 따라 새롭게 금형을 제조할 필요가 없어, 제조 단가를 낮출 수 있으며, 또한 압출 시트 제조와 함께, 또는 압출 시트 제조 후 대전 방지 코팅층을 표면 전체에 형성할 수 있어, 트레이 전체에 고르게 대전방지 기능을 부가할 수 있으며, 또한, 사출 성형으로 인한 정전기 발생 및 이물 제거등의 문제점이 없어, 전자 제품의 정전기 발생으로 인한 제품 불량 등의 문제를 최소화 할 수 있는 효과가 있다.
The manufacturing method according to the present invention makes it possible to manufacture a tray by vacuum forming after the production of an extruded sheet, so that it is not necessary to produce a new mold according to the model of the battery, the manufacturing cost can be lowered, The antistatic coating layer can be formed on the entire surface after the production of the extruded sheet, so that the antistatic function can be uniformly applied to the entire tray. Further, there is no problem such as generation of static electricity and removal of foreign objects due to injection molding, It is possible to minimize problems such as product defects due to the occurrence of defects.
도1a은 본 발명의 일 실시예에 따라 회전 구동 칼 절삭기에 의해 전지 (cell) 이송용 트레이를 제조하는 방법을 나타낸 사진이다.
도 1b는 도 1a의 방법에 의해 제조된 전지 이송용 트레이의 단면을 나타낸 사진이다.
도2a는 본 발명의 일 실시예에 따라 표면 연마 방식에 의해 전지 이송용 트레이를 연마하는 것을 나타내는 사진이다.
도 2b는 도 2a에 의해 제조된 전지 이송용 트레이의 단면을 나타내는 사진이다.
도3은 본 발명의 일 실시예에 따라 브러쉬(Brush)를 이용하여 버를 제거하는 방법을 나타내는 사진이다.
도 4는 본 발명의 일 실시예에 따라 바닥부가 제거된 전지 이송용 트레이를 나타내는 사진이다.FIG. 1A is a photograph showing a method of manufacturing a tray for transporting a cell by a rotary driving knife according to an embodiment of the present invention.
FIG. 1B is a photograph showing a cross section of a battery transfer tray manufactured by the method of FIG. 1A.
2A is a photograph showing polishing of a tray for transferring a cell by a surface polishing method according to an embodiment of the present invention.
And FIG. 2B is a photograph showing a cross section of the battery transfer tray manufactured by FIG. 2A.
3 is a photograph showing a method of removing a bur using a brush according to an embodiment of the present invention.
FIG. 4 is a photograph showing a tray for transferring a battery from which a bottom is removed according to an embodiment of the present invention. FIG.
이하 본 발명을 보다 상세히 설명하나, 본 발명은 이에 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail but the present invention is not limited thereto.
본 발명의 일 실시예에 의하면 본 발명에 따른 전지 이송용 제조방법은 열 가소성 수지를 이용하여 열가소성 압출 시트를 제조하는 단계; 상기 압출 시트를 진공 성형하여 전지(cell) 이송용 트레이를 제조하는 단계; 및 상기 전지가 관통하여 고정될 수 있도록 상기 트레이의 바닥부를 제거하는 단계; 를 포함한다.According to an embodiment of the present invention, there is provided a method of manufacturing a battery according to the present invention, comprising: preparing a thermoplastic extrusion sheet using a thermoplastic resin; A step of vacuum-molding the extruded sheet to manufacture a tray for transporting cells; And removing the bottom of the tray so that the battery can be fixed through the tray; .
종래 전지 이송용 트레이는 100% 사출 성형으로 제조되었는데, 이는, 트레이로 이송되는 전지가 제품으로 출하되기 전에, 제품 제조 후 양 단에 전하를 인가하여 충전하거나, 충방전 테스트 등을 위하여, 전지의 양단이 트레이를 관통될 수 있도록 트레이의 바닥부에 홀을 형성하여야 하기 때문이다. Conventional battery transfer trays were manufactured by 100% injection molding. This is because the batteries transferred to the trays are charged before the products are shipped to the product, by applying electric charges to both ends of the products, and for charging and discharging tests. Holes are formed at the bottom of the tray so that both ends can pass through the tray.
그러나, 사출 성형으로 트레이를 제조하는 경우, 상술한 바와 같아 전지의 종류에 따라 다른 금형을 제조해야 하는 문제, 정전기의 발생, 이물질 제거의 어려움, 대전방지 기능 형성의 어려움 등 많은 문제점이 있었다.
However, when the tray is manufactured by injection molding, there are many problems such as the problem of manufacturing different molds depending on the kind of battery, the generation of static electricity, the difficulty of removing foreign matter, and the difficulty of forming antistatic function.
이에 이러한 문제를 해결하기 위해 완성된, 본 발명에 따른 전지 이송용 트레이의 제조방법은, 진공 성형 방법으로 제조하면서, 사출성형 방법으로 제조되는 문제점을 해결하고, 별도의 트레이 바닥부를 제거하는 단계를 포함함에 따라, 전지의 양단이 트레이를 관통할 수 있어서, 전지의 충전이나 충방전 테스트를 진행하는 데 문제점이 없어, 전지의 대량 충전, 방전 및 충방전이 가능하여 대량 이송이 가능하며, 금형의 별도 제작없이 다양한 전지의 모형에 따라 바로 대응할 수 있어 가격 경쟁이 우수한 특징이 있다.
A method of manufacturing a tray for transporting a battery according to the present invention, which is completed in order to solve such a problem, solves the problem of being manufactured by the injection molding method while manufacturing by the vacuum molding method, Both ends of the battery can penetrate through the tray, so that there is no problem in charging the battery or conducting the charge / discharge test, and the battery can be mass-charged, discharged, charged and discharged, It can cope with various models of battery without making it separately, and it has a feature of excellent price competition.
일 실시예에 의하면, 상기 열가소성 수지는, 폴리에스테르(PET A, PET G, PET G-PET A-PET G), 스티렌-부타디엔 공중합체, 아크릴레이트-부타디엔-스틸렌(ABS), 폴리스티렌, 폴리이미드, 폴리아미드, 폴리설포네이트, 폴리카보네이트, 폴리아크릴레이트, 폴리염화비닐, 폴리에틸렌, 폴리프로필렌, 변형된 폴리페닐렌옥사이드[MPPO(Modified-Polyphenylene Oxide)], 이들의 블랜드 또는 공중합체, 페놀수지, 에폭시 수지, 우레탄 수지 및 ABS수지로부터 선택된 1종 이상일 수 있다. 기능성으로 난연성과 내열성을 가질 수 있다. According to one embodiment, the thermoplastic resin is at least one selected from the group consisting of polyesters (PET A, PET G, PET G-PET A-PET G), styrene-butadiene copolymers, acrylate-butadiene- , Polyamide, polysulfonate, polycarbonate, polyacrylate, polyvinyl chloride, polyethylene, polypropylene, modified polyphenylene oxide (MPPO), blends or copolymers thereof, phenol resins, An epoxy resin, a urethane resin, and an ABS resin. It can have flame retardancy and heat resistance due to its functionality.
상기 열 가소성 압출 시트는 내열, 난연, 또는 내열 및 단열의 기능성을 갖는 기능성 층으로 단일 층 및 다층으로 형성될 수 있다.
The thermoplastic extruded sheet may be formed as a single layer and a multi-layer as a functional layer having heat resistance, flame retardancy, or heat resistance and heat insulating function.
본 발명의 일 실시예에 의하면, 상기 압출 시트에 대전방지 코팅액을 도포 및 건조하여 상기 압출 시트의 적어도 일면에 대전방지 코팅층을 형성하는 단계를 더 포함하여, 트레이에 대전방지 기능을 부여할 수 있다.According to an embodiment of the present invention, an antistatic function may be imparted to the tray, further comprising the step of applying and drying an antistatic coating liquid on the extruded sheet to form an antistatic coating layer on at least one side of the extruded sheet .
본 발명의 일 실시예에 의하면, 상기 대전방지 코팅층은 상기 열가소성 수지를 압출할 때 동시에 형성하거나 또는 상기 열가소성 수지를 제조한 후 코팅층을 형성할 수 있다.According to an embodiment of the present invention, the antistatic coating layer may be formed at the same time when the thermoplastic resin is extruded, or may be formed after the thermoplastic resin is produced.
본 발명의 일 실시예에 의하면, 상기 대전방지 코팅액은 전도성 고분자, 탄소나노튜브 및 그래핀(grapheme)으로부터 선택된 단독 또는 이들의 혼합물 5 내지 30중량%; 열경화성 바인더 2 내지 25중량%; 물 20 내지 40중량%; 유기 용매 40 내지 70중량%; 및 첨가제(Slip, Wetting제) 0.1 내지 5중량%을 포함한다.According to an embodiment of the present invention, the antistatic coating solution may contain 5 to 30% by weight of a conductive polymer, carbon nanotube and grapheme, alone or in a mixture thereof; 2 to 25% by weight of a thermosetting binder; 20 to 40% by weight of water; 40 to 70% by weight of an organic solvent; And 0.1 to 5% by weight of an additive (Slip, wetting agent).
상기 전도성 고분자는 폴리아닐린, 폴리피롤, 폴리싸이오펜, 폴리(3,4-에틸렌싸이오펜), 이들의 유도체, 이들의 공중합물, 또는 π-공액계 전기 전도성 고분자; 탄소나노튜브; 또는 그래핀(grapheme)로부터 선택된 1종 이상을 포함한다.The conductive polymer may be at least one selected from the group consisting of polyaniline, polypyrrole, polythiophene, poly (3,4-ethylene thiophene), derivatives thereof, copolymers thereof or? -Conjugated electrically conductive polymers; Carbon nanotubes; Or grapheme. The term " grapheme "
상기 탄소나노튜브는 탄소 6 개로 이루어진 육각형 고리가 서로 연결되어 이루어진 흑연판상을 둥글게 말아서 생긴 튜브 형태의 분자이다. 상기 탄소나노튜브는 강성 및 전기 전도성이 우수하므로 막 경도가 증가하고 대전방지 기능이 향상된다. 또한, 자외선 또는 열 등에 노출시에 분해되지 않으므로 전도성 고분자등을 사용하는 경우보다 내후성이 증가한다. 상기 탄소나노튜브는 화학 증착법, 아크 방전법, 플라즈마 토치법 및 이온 충격법등 당업계에 공지된 방법으로 제조될 수 있으며, 그 제조 방법에 제한받지 않는다. 상기 탄소나노튜브는 단일벽 구조를 갖는 단일벽 탄소나노튜브 (single-walled carbon nanotube;SWNT) 또는 다중벽 구조를 갖는 다중벽 탄소나노튜브(multi-walled carbon nanotube;MWNT)가 사용될 수 있으나, 이에 제한되는 것은 아니다. 키랄(나선)형, 지그재그형 및 암체어형(armchair) 등의 다양한 탄소 나노 튜브가 사용될 수 있다. 또한, 상기 탄소나노튜브는 당업계에 공지된 통상의 방법으로 전처리 단계를 거칠 수 있으나, 전처리 단계를 거치지 않아도 무방하다. 상기 탄소 나노튜브는 바람직하게는 길이가 1 내지 60㎛ 이고, 직경이 0.1 내지 50nm 인 것을 사용할 수 있다.The carbon nanotube is a tube-shaped molecule formed by rounding a graphite plate composed of six hexagonal rings connected to each other. The carbon nanotubes are excellent in rigidity and electrical conductivity, so that the film hardness is increased and the antistatic function is improved. In addition, since it is not decomposed when exposed to ultraviolet rays or heat, the weatherability is increased as compared with the case of using a conductive polymer or the like. The carbon nanotubes can be manufactured by a method known in the art such as chemical vapor deposition, arc discharge, plasma torch method, and ion impact method, and the manufacturing method thereof is not limited. The carbon nanotube may be a single-walled carbon nanotube (SWNT) having a single wall structure or a multi-walled carbon nanotube (MWNT) having a multi-walled structure. But is not limited to. Various carbon nanotubes such as chiral (helical), zigzag, and armchair can be used. In addition, the carbon nanotubes may be subjected to a pretreatment step by a conventional method known in the art, but may not be subjected to a pretreatment step. The carbon nanotubes preferably have a length of 1 to 60 탆 and a diameter of 0.1 to 50 nm.
상기 열 경화성 바인더는 아크릴계, 우레탄계, 아크릴-우레탄 공중합체로부터 선택될 수 있다.The thermosetting binder may be selected from acrylic, urethane, and acryl-urethane copolymers.
일 실시예에 의하면, 상기 유기 용매는 이소프로필 알코올, 에탄올, 메탄올, 톨루엔, 에틸아세테이트, 1-메틸-2-피롤리디논 중으로부터 선택된 단독 또는 이들의 혼합물일 수 있다.
According to one embodiment, the organic solvent may be selected from the group consisting of isopropyl alcohol, ethanol, methanol, toluene, ethyl acetate, 1-methyl-2-pyrrolidinone, or a mixture thereof.
일 실시예에 의하면, 상기 대전방지 코팅층은 상기 대전방지 코팅액을 상기 열가소성 압출 시트에 0.1~10㎛의 두께로 코팅한 후 50~250℃에서 30초~30분 건조시켜 제조될 수 있다. 상기 코팅은 당해 기술분야에서 알려진 방법 어는 것이나 가능하며, 예들 들어 그라비아, 오프셋, 키스바,나이프, 메이어바 또는 코마법을 들 수 있다.
According to one embodiment, the antistatic coating layer may be prepared by coating the antistatic coating liquid on the thermoplastic extruded sheet to a thickness of 0.1 to 10 탆 and then drying the coating at 50 to 250 캜 for 30 seconds to 30 minutes. The coating can be in any manner known in the art, such as gravure, offset, kiss bar, knife, Meyer bar or nose magic.
본 발명의 일 실시예에 의하면, 상기 진공 성형은 120~280℃의 온도에서 행해질 수 있다. 이는 120℃ 미만의 온도에서 행해지면 진공 성형의 시간이 길어져서 트레이 표면이 균일하지 않고, 180℃를 초과하면 열가소성 수지가 과열되어 트레이가 경도가 약해질 수 있다.
According to an embodiment of the present invention, the vacuum forming may be performed at a temperature of 120 to 280 ° C. If the temperature is lower than 120 deg. C, the vacuum forming time becomes long, and the surface of the tray is not uniform. If the temperature exceeds 180 deg. C, the thermoplastic resin may overheat and the tray may become hard.
본 발명의 일 실시예에 의하면, 전지가 트레이를 관통하여 고정할 수 있도록 트레이의 바닥부를 도 1 내지 4의 트레이(50)과 같이 바닥면을 제거한다. 상기 바닥면의 제거는 회전 구동 칼날 방식 또는 사포를 이용한 자동 연마 방식으로 제거될 수 있다.
According to one embodiment of the present invention, the bottom of the tray is removed with the bottom of the tray like the
본 발명의 일 실시예에 의하면, 상기 바닥부를 제거하는 단계 후에 브러쉬(Brush)를 이용하여 버(burr) 또는 이물질을 제거하는 단계를 더 포함한다.
According to an embodiment of the present invention, after the step of removing the bottom portion, a step of removing a burr or foreign matter by using a brush is further included.
도 1a 및 도 1b에 도시된 바와 같이 본 발명의 일 실시예에 의하면, 일 실시예에 의해 압출된 시트를 진공 성형한 후, 전지가 트레이를 관통하여 고정할 수 있도록 트레이 바닥부를 회전구동 칼날 방식으로 바닥면을 제거할 수 있다.
As shown in FIGS. 1A and 1B, according to an embodiment of the present invention, after a sheet extruded according to an embodiment is vacuum-formed, a bottom of the tray is rotated by a rotation driving blade system The bottom surface can be removed.
또한, 본 발명의 일 실시예에 의하면, 진공성형에 의해 제조된 트레이의 바닥부를 사포를 이용하여 자동 연마방식으로 바닥면을 제거할 수 있다(도 2a 및 도2b 참조).
According to an embodiment of the present invention, the bottom of the tray manufactured by vacuum forming can be removed by an automatic polishing method using sandpaper (see FIGS. 2A and 2B).
본 발명의 일 실시예에 의하면, 바닥부가 제거된 트레이를 브러쉬(brush)를 이용하여 버(burr)를 제거하고 칼 등을 이용하여 이물질 등을 제거할 수 있다(도 3 참조).According to an embodiment of the present invention, a tray on which a bottom part has been removed can be removed with a brush using a brush, and foreign materials can be removed using a knife or the like (see FIG. 3).
상기 본 발명에 따른 전지 이송용 트레이의 제조방법은 각 단계 및/또는 모든 단계가 전 자동으로 이루어질 수 있다.The method for manufacturing a battery transporting tray according to the present invention may be performed automatically and / or automatically at each step and / or all steps.
10: 회전 구동 칼 절삭 방법
20: 표면 연마 방법
30: 브러쉬(Brush)를 이용하여 Burr제거 방법
40: 칼을 사용하여 이물제거 방법
50: 바닥부가 제거된 전지 셀(cell)이송용 대전방지 진공성형 트레이10: Rotary drive knife cutting method
20: surface polishing method
30: Burr removal method using brush
40: How to remove foreign matter using a knife
50: Antistatic vacuum forming tray for transporting the cell with the bottom removed
Claims (12)
상기 압출 시트를 진공 성형하여 전지(cell) 이송용 트레이를 제조하는 단계; 및
상기 전지가 관통하여 고정될 수 있도록 상기 트레이의 바닥부를 제거하는 단계; 를 포함하고,
상기 열가소성 압출 시트는 난연, 내열, 또는 난연 및 내열 기능층을 포함하는 단층 또는 다중층인 전지 이송용 트레이의 제조방법. Preparing a thermoplastic extruded sheet using a thermoplastic resin;
A step of vacuum-molding the extruded sheet to manufacture a tray for transporting cells; And
Removing a bottom portion of the tray so that the battery can be fixed through the unit; Lt; / RTI >
Wherein said thermoplastic extruded sheet is a single layer or multiple layers comprising a flame retardant, heat resistant, or flame retardant and heat resistant functional layer.
상기 열가소성 수지는, 폴리에스테르(PET A, PET G, PET G-PET A-PET G), 스티렌-부타디엔 공중합체, 아크릴레이트-부타디엔-스틸렌(ABS), 폴리스티렌, 폴리이미드, 폴리아미드, 폴리설포네이트, 폴리카보네이트, 폴리아크릴레이트, 폴리염화비닐, 폴리에틸렌, 폴리프로필렌, 변형된 폴리페닐렌옥사이드 [MPPO(Modified-Polyphenylene Oxide)], 이들의 블랜드 또는 공중합체, 페놀수지, 에폭시 수지, 우레탄 수지 및 ABS수지로부터 선택된 1종 이상인 전지 이송용 트레이의 제조방법.The method according to claim 1,
The thermoplastic resin may be at least one selected from the group consisting of polyesters (PET A, PET G, PET G-PET A-PET G), styrene-butadiene copolymer, acrylate-butadiene-styrene (ABS), polystyrene, polyimide, Modified polyphenylene oxide (MPPO), blends or copolymers thereof, phenolic resins, epoxy resins, urethane resins, and polyurethane resins, and mixtures thereof. The term " modified polyphenylene oxide ABS resin, and the like.
상기 압출 시트에 대전방지 코팅액을 도포 및 건조하여 상기 압출 시트의 적어도 일면에 대전방지 코팅층을 형성하는 단계를 더 포함하는 전지 이송용 트레이의 제조방법.The method according to claim 1,
Further comprising the step of applying an antistatic coating liquid to the extruded sheet and drying the extruded sheet to form an antistatic coating layer on at least one side of the extruded sheet.
상기 대전방지 코팅층은 상기 열가소성 수지를 압출할 때 동시에 형성하거나 또는 상기 열가소성 수지를 제조한 후 코팅층을 형성하는, 전지 이송용 트레이의 제조방법.5. The method of claim 4,
Wherein the antistatic coating layer is formed at the time of extruding the thermoplastic resin, or forms a coating layer after the thermoplastic resin is produced.
상기 대전방지 코팅액은 전도성 고분자, 탄소나노튜브 및 그래핀(grapheme)으로부터 선택된 단독 또는 이들의 혼합물 5 내지 30중량%; 열경화성 바인더 2 내지 25중량%; 물 20 내지 40중량%; 유기 용매 40 내지 70중량%; 및 첨가제(Slip, Wetting제) 0.1 내지 5중량%을 포함하는, 전지 이송용 트레이의 제조방법.5. The method of claim 4,
The antistatic coating solution may contain 5 to 30% by weight of a conductive polymer, carbon nanotube and grapheme, alone or in a mixture thereof; 2 to 25% by weight of a thermosetting binder; 20 to 40% by weight of water; 40 to 70% by weight of an organic solvent; And 0.1 to 5% by weight of an additive (Slip, Wetting agent).
상기 전도성 고분자는 폴리아닐린, 폴리피롤, 폴리싸이오펜, 폴리(3,4-에틸렌싸이오펜), 이들의 유도체, 이들의 공중합물, 또는 π-공액계 전기 전도성 고분자로부터 선택된 1종 이상을 포함하는, 전지 이송용 트레이의 제조방법.The method according to claim 6,
Wherein the conductive polymer is at least one selected from the group consisting of polyaniline, polypyrrole, polythiophene, poly (3,4-ethylene thiophene), a derivative thereof, a copolymer thereof or a π-conjugated system electroconductive polymer. A method for manufacturing a transfer tray.
상기 대전방지 코팅층을 형성시키는 단계는 상기 대전방지 코팅액을 상기 열가소성 압출 시트에 0.1~10㎛의 두께로 코팅한 후 50~250℃에서 30초~30분 건조키는 단계인, 전지 이송용 트레이의 제조방법.5. The method of claim 4,
Wherein the forming of the antistatic coating layer comprises coating the antistatic coating liquid on the thermoplastic extruded sheet in a thickness of 0.1 to 10 탆 and drying at 50 to 250 캜 for 30 seconds to 30 minutes. Gt;
상기 진공 성형이 120~280℃의 온도에서 행해지는, 전지 이송용 트레이의 제조방법.The method according to claim 1,
Wherein the vacuum forming is performed at a temperature of 120 to 280 占 폚.
상기 바닥부를 제거하는 단계 후에 브러쉬(Brush)를 이용하여 버(burr) 또는 이물질을 제거하는 단계를 더 포함하는 전지 이송용 트레이의 제조방법.The method according to claim 1,
And removing the burr or foreign matter by using a brush after removing the bottom portion.
상기 바닥부를 제거하는 단계가 회전 구동 칼날 방식 또는 사포를 이용한 자동 연마 방식인, 전지 이송용 트레이의 제조방법.The method according to claim 1,
Wherein the step of removing the bottom portion is an automatic polishing method using a rotary driving blade system or a sandpaper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130121437A KR101516312B1 (en) | 2013-10-11 | 2013-10-11 | Method of producing a tray for transferring cells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130121437A KR101516312B1 (en) | 2013-10-11 | 2013-10-11 | Method of producing a tray for transferring cells |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20150042588A KR20150042588A (en) | 2015-04-21 |
KR101516312B1 true KR101516312B1 (en) | 2015-05-04 |
Family
ID=53035616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130121437A KR101516312B1 (en) | 2013-10-11 | 2013-10-11 | Method of producing a tray for transferring cells |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101516312B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10553842B2 (en) | 2016-09-05 | 2020-02-04 | Lg Chem, Ltd. | Tray to accommodate batteries having various sizes |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105368262A (en) * | 2015-12-17 | 2016-03-02 | 常熟市方塔涂料化工有限公司 | High-performance conductive anticorrosive paint and preparation method thereof |
KR102113300B1 (en) * | 2016-02-29 | 2020-05-20 | 주식회사 엘지화학 | Apparatus transferring battery cell |
CN108202511B (en) * | 2016-12-19 | 2019-11-08 | 比亚迪股份有限公司 | A kind of composite material preparing battery tray, battery tray and preparation method thereof |
CN108690338A (en) * | 2017-04-11 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of dedicated ABS/PC alloy materials of pit gear and preparation method thereof |
KR102039449B1 (en) | 2018-06-12 | 2019-11-01 | 주식회사 피피아이엘엔케이 | Tray for battery and manufacturing method therefor |
KR102426963B1 (en) * | 2022-02-08 | 2022-07-29 | (주)제이아이테크 | Antistatic Sheet for Photomask Storage Case, Method for Preparing the Same, and Method for Recovering Antistatic Property |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003291295A (en) | 2002-04-03 | 2003-10-14 | Denki Kagaku Kogyo Kk | Sheet |
KR200388860Y1 (en) * | 2005-04-22 | 2005-07-07 | 나노캠텍주식회사 | Bendable antistatic sheet and Antistatic tray for electronic parts using it |
JP2006027266A (en) | 2004-06-17 | 2006-02-02 | Daicel Polymer Ltd | Antistatic resin sheet and molded article for electronic component packaging |
KR101011258B1 (en) * | 2010-05-14 | 2011-01-26 | 주식회사 이에스디웍 | Tray for battery of various size |
-
2013
- 2013-10-11 KR KR1020130121437A patent/KR101516312B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003291295A (en) | 2002-04-03 | 2003-10-14 | Denki Kagaku Kogyo Kk | Sheet |
JP2006027266A (en) | 2004-06-17 | 2006-02-02 | Daicel Polymer Ltd | Antistatic resin sheet and molded article for electronic component packaging |
KR200388860Y1 (en) * | 2005-04-22 | 2005-07-07 | 나노캠텍주식회사 | Bendable antistatic sheet and Antistatic tray for electronic parts using it |
KR101011258B1 (en) * | 2010-05-14 | 2011-01-26 | 주식회사 이에스디웍 | Tray for battery of various size |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10553842B2 (en) | 2016-09-05 | 2020-02-04 | Lg Chem, Ltd. | Tray to accommodate batteries having various sizes |
Also Published As
Publication number | Publication date |
---|---|
KR20150042588A (en) | 2015-04-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101516312B1 (en) | Method of producing a tray for transferring cells | |
Lee et al. | Stretchable carbon nanotube/ion–gel supercapacitors with high durability realized through interfacial microroughness | |
US20160304352A1 (en) | Graphene tape | |
KR101099830B1 (en) | Antistatic composition for inside addition and products comprising thereof | |
KR20140011390A (en) | Releasing film for ceramic green sheet production rrocesses | |
KR101548670B1 (en) | Antistatic sheet, tray and method of preparing the same | |
CN104386373A (en) | Production method of battery transfer tray | |
KR101176709B1 (en) | Anti-static horizontal piling support for display glass | |
KR102409672B1 (en) | Form sheet for transferring electronics, Tray including the same, and Method for producing the same | |
KR20100133075A (en) | Antistatic coating composition, antistatic sheet and sheet employing the same, method of manufacturing the same and antistatic product employing the same | |
Wuamprakhon et al. | Recycled Additive Manufacturing Feedstocks for Fabricating High Voltage, Low‐Cost Aqueous Supercapacitors | |
TWI593556B (en) | Release film for producing green sheet | |
CN203739363U (en) | Permanent anti-static smooth polypropylene sheet | |
US10501324B2 (en) | Systems, devices, and/or methods for reactive graphene and its applications | |
KR101505063B1 (en) | Method of producing a tray for transferring cells | |
KR100916924B1 (en) | Anti-static box of packing glasses for a liquid crystal display | |
KR101984930B1 (en) | Graphene laminate comprising reduced graphene oxide, method for manufacturing same, eletrode material using same, and electronic device | |
CN103587125A (en) | Method for manufacturing battery transfer tray | |
CN1762030A (en) | Allowance method for point to ground resistance on tray | |
CN203752626U (en) | Permanent antistatic type smooth and highlighting ABS (acrylonitrile-butadiene-styrene) sheet material | |
CN108461431B (en) | Electronic component container and method for manufacturing the same | |
KR101908129B1 (en) | Anti-static Al sheet | |
KR102559027B1 (en) | Heatproof separator film for epoxy mold compound process of semiconductor | |
KR101799078B1 (en) | Tray | |
KR102426963B1 (en) | Antistatic Sheet for Photomask Storage Case, Method for Preparing the Same, and Method for Recovering Antistatic Property |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20180423 Year of fee payment: 4 |
|
FPAY | Annual fee payment |
Payment date: 20190402 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20200302 Year of fee payment: 6 |