KR20250116844A - A method and bonding device for laminating an artificial graphite film with a non-conductive synthetic resin adhesive and then changing the electrical properties of the synthetic resin adhesive into a conductor. - Google Patents
A method and bonding device for laminating an artificial graphite film with a non-conductive synthetic resin adhesive and then changing the electrical properties of the synthetic resin adhesive into a conductor.Info
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- KR20250116844A KR20250116844A KR1020240011927A KR20240011927A KR20250116844A KR 20250116844 A KR20250116844 A KR 20250116844A KR 1020240011927 A KR1020240011927 A KR 1020240011927A KR 20240011927 A KR20240011927 A KR 20240011927A KR 20250116844 A KR20250116844 A KR 20250116844A
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- synthetic resin
- artificial graphite
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- 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
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- 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
- B32B2307/202—Conductive
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
본 발명은 전자기기 히트싱크 방열소재로 기존에 사용하고 있는 인조흑연필름(artificial graphite film) 여러 장을 전기적 성질이 부도체 인 합성수지계열 접착제로 먼저 부착하고 적층(積層)으로 합체시켜서 접합할 때 고온가열압착기로 강력한 고온의 강한 에너지를 발생시켜 부도체성질 인 합성수지접착제가 강력하고 큰 열에너지를 흡수하도록 하고, 고온의 열에너지로 인해 절연을 파괴하는 절연파괴현상이 발생하도록 유도해서 절연을 파괴시켜 합성수지접착제의 전기적 성질을 도체성질로 변질시키는 방법을 적용하면 인조흑연필름들을 우선적으로 부도체성질의 합성수지접착제로 부착하여도 부착 후 합성수지접착제를 절연파괴현상으로 변질시켜서 부착된 부위가 본연의 물리적 물성에 변함없어 인조흑연필름 전기적 성질을 유지시키면서 크기만 크게 개량된 신제품을 다양한 규격의 히트싱크 방열소재로 사용할 수 있도록 기존 인조흑연필름을 합성수지접착제를 사용해서 적층으로 접합하는 방법 및 접합장치에 관한 것이다.The present invention is a method of first attaching multiple sheets of artificial graphite films, which are conventionally used as heat sink heat dissipation materials for electronic devices, with a synthetic resin adhesive having electrically non-conductive properties, and then laminating and bonding them, by generating strong, high-temperature, strong energy with a high-temperature heating press so that the synthetic resin adhesive having electrically non-conductive properties absorbs strong, large heat energy, and inducing an insulation breakdown phenomenon that destroys insulation due to the high-temperature heat energy, thereby destroying the insulation and changing the electrical properties of the synthetic resin adhesive into a conductive property, so that even if the artificial graphite films are attached first with a synthetic resin adhesive having electrically non-conductive properties, the synthetic resin adhesive is changed by the insulation breakdown phenomenon after attachment, so that the attached portion does not change in its original physical properties, and a new product with a significantly improved size can be used as a heat sink heat dissipation material of various specifications, compared to the existing one. The present invention relates to a method and a bonding device for bonding artificial graphite films in layers using a synthetic resin adhesive.
Description
본 발명은 전자기기 히트싱크 방열소재로 기존에 사용하고 있는 인조흑연필름(artificial graphite film) 여러 장을 전기적 성질이 부도체 인 합성수지계열 접착제로 먼저 부착하고 적층(積層)으로 합체시켜서 접합할 때 고온가열압착기로 강력한 고온의 강한 에너지를 발생시켜 부도체성질 인 합성수지접착제가 강력하고 큰 열에너지를 흡수하도록 하고, 고온의 열에너지로 인해 절연을 파괴하는 절연파괴현상이 발생하도록 유도해서 절연을 파괴시켜 합성수지접착제의 전기적 성질을 도체성질로 변질시키는 방법을 적용하면 인조흑연필름들을 우선적으로 부도체성질의 합성수지접착제로 부착하여도 부착 후 합성수지접착제를 절연파괴현상으로 변질시켜서 부착된 부위가 본연의 물리적 물성에 변함없어 인조흑연필름 전기적 성질을 유지시키면서 크기만 크게 개량된 신제품을 다양한 규격의 히트싱크 방열소재로 사용할 수 있도록 기존 인조흑연필름을 합성수지접착제를 사용해서 적층으로 접합하는 방법 및 접합장치에 관한 것으로서,.The present invention is a method of first attaching multiple sheets of artificial graphite films, which are conventionally used as heat sink heat dissipation materials for electronic devices, with a synthetic resin adhesive having electrically non-conductive properties, and then laminating and bonding them, by generating strong, high-temperature, strong energy with a high-temperature heating press so that the synthetic resin adhesive having electrically non-conductive properties absorbs strong, large heat energy, and inducing an insulation breakdown phenomenon that destroys insulation due to the high-temperature heat energy, thereby destroying the insulation and changing the electrical properties of the synthetic resin adhesive into a conductive property, so that even if the artificial graphite films are attached first with a synthetic resin adhesive having electrically non-conductive properties, the synthetic resin adhesive is changed by the insulation breakdown phenomenon after attachment, so that the attached portion does not change in its original physical properties, and a new product with a significantly improved size can be used as a heat sink heat dissipation material of various specifications, compared to the existing one. A method and a bonding device for bonding artificial graphite films in layers using a synthetic resin adhesive.
상세하게는 현재 전자기기 히트싱크 방열소재로 사용하는 인조흑연필름은 생산제품규격이 한정되어 있어 많은 방열 량이 소요되는 큰 규격의 전자기기에 사용하기에는 용량이 부족하여 용도제한을 받고 있으나 현재 인조흑연필름을 생산하고 있는 제조사들의 현존기술력과 제조설비로는 인조흑연필름규격을 갑자기 늘려 생산하는 것은 불가능하고, 현재 생산되고 있는 규격을 초월하는 제품들을 제조하기 위해서는 장기간의 기술개발연구와 막대한 제조설비투자를 감수하여야 하는 문제점을 갖고 있어 짧은 기간 내에 규격을 크게 확대한 신제품을 사용하는 데는 많은 시간이 필요한 실정으로 이런 문제점을 해결하는 방법으로 기존 인조흑연필름 여러 장을 부도체 성질로 접착력이 뛰어난 합성수지접착제로 각개 인조흑연필름표면에 얇게 도포하여 적층으로 합체시킨 후 고온의 가열압착롤러 또는 가열프레스 등의 가열용 압착기를 사용해서 고온으로 압착하면 합성수지접착제가 가진 부도체성질이 강력한 고온의 열에너지로 인해 절연체가 파괴되는 절연파괴현상으로 각개 인조흑연필름표면과 표면 사이에 도포된 부도체 성질의 합성수지접착제가 도체 성질로 변질되면서 인조흑연필름 본연의 물리적 물성에는 변함없이 크기만 커진 신제품으로 개량되어 많은 방열 량이 필요한 히트싱크 방열소재로 사용할 수 있도록 합성수지접착제의 전기적 성질을 변질시켜 인조흑연필름을 적층으로 접합할 수 있는 방법 및 접합장치에 관한 것이다.Specifically, the artificial graphite film currently used as a heat dissipation material for electronic device heat sinks has a limited production product specification, so it is not enough to be used in large-sized electronic devices that require a lot of heat dissipation, and its use is limited. However, it is impossible to suddenly increase the specification of artificial graphite films with the current technology and manufacturing facilities of manufacturers currently producing artificial graphite films. In order to manufacture products that exceed the specifications currently being produced, long-term technology development research and a huge investment in manufacturing facilities must be undertaken. Therefore, it takes a lot of time to use new products with greatly expanded specifications in a short period of time. As a way to solve this problem, several sheets of existing artificial graphite films are individually coated thinly on the surface of artificial graphite films with excellent adhesive strength and non-conductive properties, and then laminated and combined. After that, when a heating press such as a high-temperature heating press roller or heating press is used to press at high temperatures, the non-conductive properties of the synthetic resin adhesive cause the insulation to be destroyed by the strong high-temperature heat energy, resulting in an insulation breakdown phenomenon. The present invention relates to a method and a bonding device for bonding artificial graphite films in layers by modifying the electrical properties of the synthetic resin adhesive so that the synthetic resin adhesive with non-conductive properties applied between the surfaces of artificial graphite films is modified into a conductive property, thereby improving the original physical properties of the artificial graphite film while increasing its size, so that it can be used as a heat sink heat dissipation material requiring a large amount of heat dissipation.
전자기기 히트싱크 방열소재로 사용되고 있는 기존 인조흑연필름 생산제품은 규격이 한정되어 있어 많은 방열 량이 요구되는 히트싱크에 사용하기에는 방열능력이 부족하고, 새로운 규격의 제품을 개발하여 생산하기 위해서는 제조설비증설비용과 기술개발연구기간에 대한 막대한 자금투자가 필요한데, 이런 문제점을 간단하게 해결할 수 있는 방책으로 기존 인조흑연필름 여러 장을 적층으로 합성수지접착제를 사용하고 접합해서 합체시켜 크기를 키워도 인조흑연필름 본연의 물리적 성질에는 변함없이 크기만 커져 기존 인조흑연필름 방열 량을 능가하는 개량된 인조흑연필름제품으로 완성하여 대용량 히트싱크 방열소재로 사용하는데 문제가 없는 기존 인조흑연필름의 적층으로 접합하여 완성시키는 방법 및 접합장치를 제시하는 것이다.The existing artificial graphite film products used as heat dissipation materials for electronic device heat sinks have limited specifications, so their heat dissipation capacity is insufficient for use in heat sinks that require a large amount of heat dissipation, and in order to develop and produce products with new specifications, a huge amount of money is needed for manufacturing facility expansion and technology development research periods. As a simple solution to this problem, several sheets of existing artificial graphite films are laminated using a synthetic resin adhesive and bonded together to increase their size, but the original physical properties of the artificial graphite films are not changed, and an improved artificial graphite film product that only increases in size and surpasses the heat dissipation capacity of the existing artificial graphite films is completed, and a bonding device is proposed for completing the laminated bonding of existing artificial graphite films without any problems in using them as heat dissipation materials for large-capacity heat sinks.
전자기기 히트싱크 방열소재로 사용되는 기존 인조흑연필름의 제품규격은 두께와 폭이 최대 150.0㎛와 200.0mm이하로 규격이 한정되고, 전자기기의 방열 량도 이에 비례하여 사용에 한계치가 있어 신제품으로 개발되면서 규격이 커진 전자기기에는 상대적으로 많은 방열 량을 가진 히트싱크 장착이 필요한데 이를 충족시키기 위해서는 방열소재로 사용되는 기존 인조흑연필름규격도 커져야 하는 문제점이 있다.The product specifications of existing artificial graphite films used as heat dissipation materials for electronic device heat sinks are limited to a maximum thickness and width of 150.0㎛ and 200.0mm or less, and the heat dissipation amount of electronic devices also has a limit to their use in proportion to this. Therefore, as new products are developed and specifications increase, electronic devices require heat sinks with relatively large heat dissipation amounts. In order to meet this, there is a problem that the specifications of existing artificial graphite films used as heat dissipation materials must also increase.
또한 기존에 사용하는 인조흑연필름을 적층으로 접합하여 크기를 늘려 개량하여도 전자기기 히트싱크 방열소재로 사용하려면 전기적 성질이 도체성질을 가진 인조흑연필름 본연의 물리적 물성과 특히 전기적 성질이 변함없이 유지할 수 있도록 하여야 하기에 적층으로 접합하는데 사용되는 접착제의 전기적 성질은 반드시 도체성질을 갖어야 한다.In addition, even if the existing artificial graphite film is improved by increasing its size through lamination, in order to be used as a heat sink material for electronic devices, the electrical properties must be maintained so that the physical properties of the artificial graphite film, which has conductive properties, and especially the electrical properties, remain unchanged. Therefore, the electrical properties of the adhesive used for lamination must be conductive.
상기 과제를 해결하고자 하는 본 발명의 목적은 인조흑연입자를 막 형태로 두께와 폭이 최대 150.0 ㎛와 200.0mm 이하의 규격으로 제한되어 제조한 도체성질의 기존 인조흑연필름 여러 장을 활용하여 각개 표면에 접착력이 뛰어난 부도체 성질의 합성수지수지접착제를 얇게 도포하여 적층으로 합체하고, 적층된 인조흑연필름의 개수와 적층시킨 두께에 따라 가열온도를 합성수지접착제의 최고 허용온도를 상회하는 130℃~200℃의 고온으로 가열하여 압착을 하면 강력한 열에너지가 발생되어 인조흑연필름표면과 표면 사이에 도포된 부도체성질의 합성수지접착제에 전달되어 흡수가 되면 전기적(電氣的)으로 절연된 물질 상호간의 전기저항이 감소되면서 많은 전류가 흐르게 되는 절연파괴현상으로 합성수지접착제가 도체성질로 변질된다. 즉 절연체 물성은 자유롭게 움직일 수 있는 전도전자가 존재하지 않는 물질로 전도 띠와 원자가 띠 사이의 띠 간격(띠 틈)이 크고, 원자가 띠가 모두 전자로 채워져 있어 원자가 띠의 전자는 전도 띠 방향으로 이동이 제한되어 전기전도성(電氣傳導性)이 낮은 물성을 띄고 있는데, 인조흑연필름표면에 도포된 부도체성질의 합성수지접착제를 고온으로 가열하고 압착할 때 발생하는 고온의 열에너지는 전도 띠와 절연체 원자가 띠의 띠 간격(띠 틈)보다 더 크고 강력하여 이런 큰 에너지를 흡수하는 원자가 띠의 전자는 전도 띠로의 전이가 가능해져 원자가 띠의 전자가 전도 띠로 전이되는 과정에서 합성수지접착제에 형성된 절연체 물성을 영구적으로 저하시키는 물리적, 화학적 변화가 동반되는 것을 절연파괴현상이라고 하며 이렇게 전기적 성질의 변질되는 절연파괴현상을 이용하여 인조흑연필름들의 전기적 성질을 도체성질로 변질시켜 적층으로 접합되도록 하였다.The purpose of the present invention to solve the above problem is to utilize several sheets of existing conductive artificial graphite films manufactured in the form of a film with a thickness and width limited to a maximum of 150.0 ㎛ and a width of 200.0 mm or less, and to laminate and combine them by thinly applying a synthetic resin adhesive with excellent adhesive strength to each surface, and heating and compressing them at a high temperature of 130℃ to 200℃, which exceeds the maximum allowable temperature of the synthetic resin adhesive, depending on the number of laminated artificial graphite films and the laminated thickness, so that a strong thermal energy is generated and transferred to and absorbed by the synthetic resin adhesive with an insulator applied between the surfaces of the artificial graphite films, so that the electrical resistance between electrically insulated materials decreases and a large amount of current flows, resulting in an insulation breakdown phenomenon in which the synthetic resin adhesive changes into a conductive property. In other words, an insulator is a material in which there are no freely moving conduction electrons, and the band gap (band gap) between the conduction band and the valence band is large, and the valence band is entirely filled with electrons, so the electrons in the valence band are restricted from moving in the direction of the conduction band, resulting in low electrical conductivity. However, when the non-conductive synthetic resin adhesive applied to the surface of an artificial graphite film is heated to a high temperature and pressed, the high-temperature thermal energy generated is larger and stronger than the band gap (band gap) between the conduction band and the valence band of the insulator, so the electrons in the valence band that absorb this large energy can be transferred to the conduction band. In the process of the electrons in the valence band being transferred to the conduction band, a physical and chemical change that permanently lowers the insulator properties formed in the synthetic resin adhesive occurs, which is called an insulating breakdown phenomenon. By utilizing this insulating breakdown phenomenon in which the electrical properties are changed, the electrical properties of artificial graphite films can be changed to conductive properties. It was modified to be laminated and bonded.
상기 과제를 해결하기 위한 본 발명의 해결수단으로 고온으로 합성수지접착제의 절연체를 파괴하여 절연파괴현상을 이끌어 내는 가열공정에 사용되는 고온가열압착기는 인조흑연필름을 사용하는 용도와 제품규격과 생산량에 따라 접합장치를 고온용 가열압착롤러방식과 가열프레스압착방식 중에서 선택할 수 있도록 하고, 소형 전자기기 히트싱크에 사용하는 규격이 작고 수량이 많은 제품은 필름 형 원재료를 사용하여 가열압착롤러방식으로 전자동공정으로 대량생산하고, 접합대상물이 패널과 같이 얇고 면적이 넓은 제품은 가열프레스압착방식을 사용하여 각개 단발작업방식으로 제조한다.In order to solve the above problem, the present invention provides a high-temperature heating press machine used in a heating process that destroys the insulation of a synthetic resin adhesive at high temperature to induce an insulation breakdown phenomenon, and allows a bonding device to be selected between a high-temperature heating press roller method and a heating press bonding method depending on the purpose of use, product specifications, and production volume of the artificial graphite film, and products with small specifications and large quantities used in small electronic device heat sinks are mass-produced in a fully automatic process using film-type raw materials using the heating press bonding roller method, and products with thin and large surfaces such as panels are manufactured individually using the heating press bonding method in a single-shot operation manner.
상기 본 발명의 인조흑연필름을 적층하여 접합하는 고온용 가열압착롤러장치는 원재료 인조흑연필름을 롤러를 사용하여 공급하는 원재료투입단계와 인계 받은 각개 인조흑연필름표면에 합성수지접착제를 얇게 도포하고 적층으로 합체하는 도포합체단계와 인계 받은 합체된 각개 인조흑연필름표면상에 도포된 합성수지접착제에 조성된 휘발성용제와 수분 등을 빠르게 증발시켜 합성수지접착제 액상이 최대한 끈끈할 정도로 점도를 낮춰 상면(上面) 인조흑연필름과 하면(下面) 인조흑연필름 상호간 부착성을 높여 상하 간 접합상태가 적층으로 반듯하게 합체시켜 인계시켜서 가열압착롤러로 압착할 때 적층으로 합체된 상태가 흐트러지지 않도록 하는 역할과 인조흑연필름으로부터 도포된 잉여 접착제가 밀려나와 압착롤러를 오염시키지 않도록 사전에 방지하는 공정을 목적으로 하는 반 건조단계를 실행하는 반 건조실과 반 건조실로부터 인계된 적층으로 합체된 인조흑연필름들의 허용온도를 상회하는 130℃~200℃의 고온으로 가열압착을 하여 절연을 파괴하는 절연파괴현상을 유도하면서 접합하는 가열압착단계와 가열압착단계에서 적층으로 접합되어 합체된 인조흑연필름의 완벽한 건조를 위해 중 적외선(mid-infrared)을 조사하여 건조하는 건조단계와 완성된 흑연필름을 회수용 롤러에 감아 회수하는 회수단계를 제조공정으로 하는 고온 가열압착롤러장치로 흑연필름원재료를 투입공정부터 회수공정까지 모든 이송수단에 롤러를 사용하는 완전 자동화 설비로 대량 생산이 가능하다.The high-temperature hot pressing roller device for laminating and bonding artificial graphite films of the present invention comprises a raw material input step of supplying raw material artificial graphite films using a roller, a coating and bonding step of thinly applying synthetic resin adhesive to the surface of each artificial graphite film received and bonding them into a laminate, and a semi-drying step for the purpose of rapidly evaporating volatile solvents and moisture, etc., contained in the synthetic resin adhesive applied on the surface of each artificial graphite film received and bonded, thereby lowering the viscosity of the synthetic resin adhesive liquid to the maximum stickiness, thereby increasing the mutual adhesiveness between the upper and lower artificial graphite films, and thereby ensuring that the upper and lower bonded states are evenly laminated and bonded, thereby preventing the laminated state from being disturbed when pressed with a hot pressing roller, and a process for preventing in advance the excess adhesive applied from the artificial graphite film from being pushed out and contaminating the pressing roller. This is a high-temperature heat-pressing roller device that uses rollers for all transport means from the input process of graphite film raw materials to the recovery process, and is capable of mass production with a manufacturing process that includes a heat-pressing step in which the insulation is destroyed by inducing an insulation breakdown phenomenon by heat-pressing at a high temperature of 130℃ to 200℃, which exceeds the allowable temperature of the laminated synthetic graphite films inherited from the semi-drying room and the semi-drying room, a drying step in which the artificial graphite films that are laminated and combined in the heat-pressing step are dried by irradiating them with mid-infrared rays to ensure complete drying, and a recovery step in which the completed graphite films are wound around a recovery roller.
또한, 가열압착롤러방식에 비해 가열프레스압착방식의 접합장치는 얇고 면적이 넓은 패널과 같은 제품규격이 큰 제품에 사용하는 대형제품용 인조흑연필름을 적층 접합하는 제조설비로 롤러이송공정 일부를 제외하면 모두 각개 단발작업으로 이루어지며 인조흑연필름 원재료를 규격에 맞게 절단하는 절단단계와 절단된 인조흑연필름표면에 합성수지접착제를 얇게 도포하여 적층으로 합체하는 도포합체단계와 적층으로 도포된 인조흑연필름표면의 접착제점도를 낮춰주는 반건조단계와 반 건조된 인조흑연필름을 고온의 가열압착프레스로 허용온도를 상회하는 130℃~200℃의 고온으로 가열압착을 하여 절연을 파괴하는 절연파괴현상을 유도하면서 접합하는 가열압착단계와 압착하여 합체된 인조흑연필름을 완벽하게 건조를 하기 위해 중 적외선(mid-infrared)을 조사하여 건조하는 건조단계 완성된 인조흑연필름제품을 회수하는 회수단계로 운영 되는 인조흑연필름을 적층으로 합체하여 접합하는 가열압착롤러방식으로 각개 공정이 단발로 이뤄진다.In addition, compared to the heating compression roller method, the heating press bonding method is a manufacturing facility that laminates and bonds artificial graphite films for large products with large product specifications, such as thin, large-area panels, and is performed as a single operation, except for a part of the roller transfer process, and includes a cutting step for cutting the artificial graphite film raw material to the specifications, a coating and bonding step for thinly applying synthetic resin adhesive to the surface of the cut artificial graphite film and bonding it into a laminate, a semi-drying step for lowering the viscosity of the adhesive on the surface of the artificial graphite film coated into a laminate, a heating and bonding step for bonding the semi-dried artificial graphite film by heating and bonding it at a high temperature of 130℃ to 200℃, which exceeds the allowable temperature, with a high-temperature heating and bonding press to induce an insulation breakdown phenomenon that destroys the insulation, and a drying step for completely drying the artificial graphite film that has been compressed and bonded by irradiating it with mid-infrared rays, and a step for recovering the completed artificial graphite film product. Each process is performed in a single step using a heating and pressing roller method that laminates and bonds artificial graphite films operated in the recovery stage.
상기 과제와 해결수단을 갖는 본 발명에 따르면 전자기기 히트싱크방열소재로 사용되는 기존 인조흑연필름 여러 장을 활용하고 합성수지계열의 합성수지점착제를 사용해서 적층으로 접합시켜 간단하게 두께를 두껍게 만드는 방법으로 인조흑연필름규격을 개량하여 방열 량을 향상시킨 인조흑연필름은 기존 인조흑연필름제조공장들이 규격을 키우기 위해서 불필요하게 투자되는 기술연구개발비용과 제조설비증설비용 등 막대한 추가투자비용 없이 소규모 자동가열압착롤러장치 또는 가열압착프레스를 사용하여 새로운 규격의 흑연필름을 개량시켜 생산할 수 있어 그 동안 사용해온 기존 인조흑연필름제품과 동일한 물리적 성질을 가진 제품을 용이하게 대량생산할 수 있고, 기존 대형제조설비로 생산되고 있는 제조원가보다 가격을 많이 낮출 수 있어 방열용 원재료로 각종 전자기기에 인조흑연필름을 사용하고 있는 완제품생산공장들의 제조단가를 크게 낮춰주는 경제적 효과를 가질 수 있다.According to the present invention having the above problems and solutions, the artificial graphite film is improved in size by simply increasing the thickness by utilizing multiple sheets of existing artificial graphite films used as heat sink heat dissipation materials for electronic devices and laminating them using a synthetic resin-based synthetic resin adhesive to improve the specifications of the artificial graphite film and thereby increasing the heat dissipation capacity. The artificial graphite film can be produced by improving the new specifications of the graphite film using a small-scale automatic heating and pressing roller device or heating and pressing press without unnecessary investment in technology research and development costs and manufacturing facility expansion costs that are unnecessary for existing artificial graphite film manufacturing factories to increase the specifications. Therefore, products having the same physical properties as existing artificial graphite film products used so far can be easily mass-produced, and the price can be lowered significantly compared to the manufacturing cost produced by existing large-scale manufacturing facilities. Therefore, it can have the economic effect of significantly lowering the manufacturing cost of finished product manufacturing factories that use artificial graphite films as heat dissipation raw materials for various electronic devices.
또한, 본 발명에 따른 절연을 파괴하는 절연파괴현상을 유도하여 절연을 파괴시켜 전기적 성질을 부도체성질에서 도체성질로 변질시켜 사용할 수 있는 모재(母材)로는 얇은 필름 형과 판(板) 형으로 최저 130℃이상으로 가열했을 때 형태가 변형되거나 소멸되지 않고 전기적 성질은 도체성질을 갖은 물질에는 모두 가능하며, 한 예로 본 내용의 대상물이 된 인조흑연필름은 약 3,000℃ 융점을 갖고 있다.In addition, the present invention induces an insulation breakdown phenomenon that destroys insulation, thereby destroying insulation and changing electrical properties from non-conductive to conductive. The base material that can be used is any material that does not lose its shape or disappear when heated to at least 130℃ in the form of a thin film or plate and has electrical properties that are conductive. As an example, the artificial graphite film that is the subject of this content has a melting point of approximately 3,000℃.
또한, 합성수지접착제는 열경화성수지와 열가소성수지를 주재료로 사용하는 1 액형과 경화제를 포함하는 2 액형의 접착제와 점착제 모두가 포함된다.In addition, synthetic resin adhesives include both one-component adhesives and two-component adhesives and pressure-sensitive adhesives that use thermosetting resins and thermoplastic resins as main ingredients and include a curing agent.
도 1 은 본 발명의 기술이 적용된 고온 가열롤러압착방식의 인조흑연필름 접합과정을 단계별로 도시한 전체 공정도.
도 2 는 본 발명의 기술이 적용된 고온 가열프레스압착방식의 인조흑연필름 접합과정을 단계별로 도시한 전체 공정도Figure 1 is a diagram illustrating the entire process step by step for bonding an artificial graphite film using a high-temperature heating roller pressing method to which the technology of the present invention is applied.
Figure 2 is a diagram illustrating the entire process step by step for bonding artificial graphite film using a high-temperature heating press compression method to which the technology of the present invention is applied.
이하 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 구성과 그 작용을 첨부도면에 연계시켜 더욱 상세하게 설명함에 있어서, 본 발명의 바람직한 예를 살펴보면 다음과 같다Hereinafter, referring to the attached drawings, a preferred embodiment according to the present invention will be described in more detail in connection with the attached drawings, and the configuration and operation thereof will be described in more detail. Hereinafter, a preferred example of the present invention will be described as follows.
도 1 은 본 발명의 기술이 적용된 고온 가열롤러압착방식의 인조흑연필름접합과정을 단계별로 도시한 전체 공정도로서, 인조흑연필름 적층 접합공정의 첫 단계로 인조흑연필름투입롤러(201)를 사용하여 인조흑연필름(101)을 투입하는 원재료투입단계(S100); 와 전달받은 각개 인조흑연필름(101)표면에 합성수지접착제를 접착제도포용롤러(104)를 사용하여 도포하고, 접착용으로 사용되는 합성수지접착제는 접착공급 통(102)에 항시 충전시켜 접착제공급관(103)을 통해 접착제도포용 롤러(104)에 공급되도록 하고, 도포된 각개 인조흑연필름(101) 여러 장을 적층 합체용 고무롤러(105)로 합체시켜주는 도포합체단계(S200); 를 거쳐 합체된 인조흑연필름(101)들 표면 사이에 도포된 합성수지접착제로부터 휘발성 용제와 수분을 적절하게 증발시켜 접착제액상점도를 낮춰 끈적한 상태로 변화 시키기 위한 장치로 반 건조로(106) 중앙내부에 투입구로부터 배출구까지 일직선으로 적층하여 합체된 인조흑연필름(101)들을 이동시키면서 건조하기 위해 스테인리스강재질의 망을 인조흑연필름이동용 받침대(107)로 설치하고, 건조로 가열장치로는 조사(照射)된 빛이 접합대상물 내부로 침투하여 발열하는 중 적외 선(mid-infrared) 전등(109)을 건조가열장치로 설치하여 인조흑연필름(101) 여러 장이 겹쳐서 합성수지접착제로 부착되어 적층으로 합체되어 있는 인조흑연필름(101) 내면을 직접 발열시켜 인조흑연필름(101)을 반 건조하는 반 건조단계(S300); 로 본체 외부에는 전원분배기(118)를 장치하여 작동기능을 조정하고, 인조흑연 필름(101)이 롤러방식 가열로(110)에 이송되어 인계할 수 있도록 인조흑연필름 이송롤러(108)를 장치하여 인계하도록 하고, 반 건조된 인조흑연필름(101)을 인수받아 고온으로 가열 압착하면 합성수지접착제의 절연이 파괴되는 절연파괴현상을 유도하는 장치로 130℃~200℃의 고온의 가열용롤러(112)로 인조흑연필름(101) 들을 가열하여 부도체성질의 합성수지접착제를 도체성질로 변질시키는 가열단계(S400): 로 롤러방식 가열로(110)의 내부온도를 유지시켜주기 위한 별도 보온장치로 고정식 전기히터(111)을 설치하고, 인조흑연필름(101)과 직접 접촉되어 가열하는 가열용 롤러(112)에는 각개 온도를 제어하는 가열롤러온도제어기(113)를 장치하여 인조흑연필름(101)이 합체된 상태와 상항에 따라 가열 온도를 각기 제어할 수 있도록 설치하고, 가열용 롤러(112)에 정확한 가열온도를 가해 절연을 파괴시킨 다음 가열압착단계(S500); 로 인계하면 가열롤러굵기가 Ø25mm 를 초과 하고 롤러표면온도가 100℃를 상회 하는 고온의 가열압착접합고무롤러(114)와 가열압착접합금속롤러(115)가 가열용 롤러(112)로부터 인계 받은 적층으로 합체된 인조흑연필름(101)들을 강력한 힘으로 압착하여 부착시키는 공정과 인조흑연 필름(101)들의 접착부위내부에 공기 층이 발생하지 않도록 방지하는 압착가열 단계(S500); 로 개별 온도제어기로 작동하며, 이렇게 적층으로 합체되어 접합된 인조흑연필름(101)들을 중 적외선건조로(116)로 인계하면 조사(照射)한 빛이 인조 흑연필름(101)을 접합한 부위내부로 침투하여 발열하는 중 적외선(mid-infrared) 전등(109)을 장치하고, 중 적외선건조로(116)내부를 연속적으로 이동할 수 있는 장치로 이동용 롤러를 설치하여 건조로 내부를 천천히 연속 이동시키면서 중 적외선이 조사하는 빛을 인조흑연필름(101) 여러 장 겹쳐 부착되어 합체된 인조 흑연필름(101)표면과 표면 사이를 빠른 시간 내에 침투하여 완전 건조할 수 있는 건조단계(S600); 와 건조되어 완성한 인조흑연필름(101)을 인조흑연필름회수롤러(202)로 회수하는 회수단계(S700); 의 제조공정으로 이루어진다.FIG. 1 is a diagram illustrating the entire process step by step for bonding artificial graphite films using a high-temperature heating roller compression method to which the technology of the present invention is applied, including: a raw material input step (S100) of inputting artificial graphite films (101) using an artificial graphite film input roller (201) as the first step of the artificial graphite film lamination bonding process; and a coating and combination step (S200) of applying a synthetic resin adhesive to the surface of each received artificial graphite film (101) using an adhesive application roller (104), constantly charging the synthetic resin adhesive used for bonding in an adhesive supply container (102) and supplying it to the adhesive application roller (104) through an adhesive supply pipe (103), and combining several sheets of the applied individual artificial graphite films (101) using a laminated combination rubber roller (105); A device for appropriately evaporating volatile solvents and moisture from the synthetic resin adhesive applied between the surfaces of the artificial graphite films (101) that have been combined through the process to lower the adhesive liquid viscosity and change it into a sticky state, a stainless steel net is installed as a support for moving the artificial graphite films (101) that have been combined by stacking them in a straight line from the inlet to the outlet in the center of the semi-drying furnace (106) while drying them, and a mid-infrared light (109) that penetrates the inside of the object to be joined and generates heat is installed as a drying heating device to directly heat the inner surface of the artificial graphite films (101) that are combined in a stack by overlapping several sheets of artificial graphite films (101) and attached with a synthetic resin adhesive, thereby semi-drying the artificial graphite films (101); A power distributor (118) is installed on the outside of the main body to adjust the operating function, and an artificial graphite film transfer roller (108) is installed to transfer the artificial graphite film (101) to a roller-type heating furnace (110) so that it can be transferred, and a device that induces an insulation breakdown phenomenon in which the insulation of the synthetic resin adhesive is destroyed when the semi-dried artificial graphite film (101) is received and heated and pressed at a high temperature, heating the artificial graphite films (101) with a high temperature heating roller (112) of 130℃ to 200℃ to change the synthetic resin adhesive of non-conductive nature into conductive nature (S400): A fixed electric heater (111) is installed as a separate heat preservation device to maintain the internal temperature of the roller-type heating furnace (110), and a heating device that is in direct contact with the artificial graphite film (101) and heats it A heating roller temperature controller (113) for controlling the temperature of each roller (112) is installed so that the heating temperature can be individually controlled according to the combined state and conditions of the artificial graphite film (101), and an accurate heating temperature is applied to the heating roller (112) to destroy the insulation and then transferred to the heating compression step (S500); a process in which a high-temperature heating compression bonding rubber roller (114) and a heating compression bonding metal roller (115) having a heating roller thickness exceeding Ø25 mm and a roller surface temperature exceeding 100°C strongly press and attach the laminated artificial graphite films (101) transferred from the heating roller (112), and a compression heating step (S500) for preventing an air layer from being generated inside the bonding area of the artificial graphite films (101); The manufacturing process is comprised of a drying step (S600) in which the light irradiated by the mid-infrared lamp (109) is installed so that the artificial graphite films (101) laminated and joined in this manner are transferred to a mid-infrared drying furnace (116) and the light emitted by the mid-infrared lamp penetrates into the area where the artificial graphite films (101) are joined and generates heat, and a moving roller is installed as a device that can continuously move inside the mid-infrared drying furnace (116) so that the light irradiated by the mid-infrared rays can quickly penetrate between the surfaces of the artificial graphite films (101) that are joined by overlapping multiple sheets of the artificial graphite films (101) and completely dry them; and a recovery step (S700) in which the dried and completed artificial graphite films (101) are recovered by an artificial graphite film recovery roller (202).
도 2 는 본 발명의 기술이 적용된 고온 가열프레스압착방식의 흑연필름접합과정을 단계별로 도시한 전체 공정도로서, 가열압착롤러방식에 비해 가열프레스압착방식의 접합장치는 얇고 면적이 넓은 패널과 같이 제품규격이 큰 제품에 사용하는 대형 인조흑연필름을 접합하는 제조설비로 일부 롤러 이송공정을 제외하면 모두 각개공정이 단발작업으로 이루어지며 원재료 인조흑연필름(101)을 투입하는 원재료투입단계(B100); 와 인수받은 인조흑연필름(101)를 규격에 맞춰 절단용 프레스(119)로 절단하는 절단단계(B200); 와 절단된 인조흑연필름(101)을 인계받아 표면에 합성수지접착제를 얇게 도포하고 적층으로 합체하는 도포합체단계(B300); 로 접착제 도포용 받침대(121) 상면에 올려 놓고 부착할 부위 표면에 합성수지접착제를 접착제도포용롤러(104)로 도포 후 적층으로 합체하여 절단된 인조흑연필름(120)을 인조흑연필름투입구(122)를 통해 절단된 반 건조로(106)로 투입하면 도포된 인조흑연필름(101) 표면의 접착제점도를 낮춰주는 반 건조단계(B400); 로 벨트가 회전하는 벨트회전이송시스템(123)의 벨트 상면에 절단된 인조흑연필름(101)을 올려 놓고 중 적외선(mid-infrared)전등(109)을 조사(照射)하여 절단된 인조흑연필름(120) 여러 장이 겹쳐서 합성수지접착제로 부착되어 적층으로 합체되어 있는 인조흑연필름(101) 내면을 직접 발열시켜 인조흑연필름(101)을 반 건조하는 반 건조단계(S300); 와 반 건조된 절단된 인조흑연필름(120)을 고온가열압착프레스(124)로 가열 압착하고 접합하는 가열압착단계(B500); 로 반 건조된 인조흑연필름(101)을 고온으로 가열 압착하여 합성수지접착제의 절연이 파괴되는 절연파괴현상을 유도하는 장치로 130℃~200℃의 고온가열압착프레스(124)로 인조흑연필름(101)들을 가열하여 부도체성질의 합성수지접착제를 도체성질로 변질시키는 가열단계(S400): 와 가열로 압착되어 도체로 변질되어 합체된 인조흑연필름(101)을 완벽하게 건조를 하여 완제품으로 완성하기 위한 건조회수단계(B600); 로 절단된 인조흑연필름(120)을 적층으로 합체시킨 인조흑연필름(101)을 선반고정식 건조로(125)의 건조용 선반(126)에 넣고 중 적외선(mid-infrared)을 조사하여 건조시키며 건조 시 발생하는 물질은 환기통로(117)로 배출시키는 건조회수단계(B600)로 공정이 이뤄진다.FIG. 2 is a diagram illustrating the entire process step by step for bonding graphite films using a high-temperature hot press bonding method to which the technology of the present invention is applied. Compared to the hot press roller method, the bonding device of the hot press bonding method is a manufacturing facility for bonding large artificial graphite films used for products with large product specifications, such as thin, wide-area panels. Except for some roller transfer processes, all individual processes are performed as single operations, including a raw material input step (B100) for inputting raw material artificial graphite film (101); a cutting step (B200) for cutting the received artificial graphite film (101) according to specifications using a cutting press (119); and a coating and combination step (B300) for receiving the cut artificial graphite film (101), thinly applying a synthetic resin adhesive to the surface, and combining them into a laminate. A semi-drying step (B400) for lowering the adhesive viscosity on the surface of the applied artificial graphite film (101) by placing it on the upper surface of the adhesive application stand (121) and applying synthetic resin adhesive to the surface of the area to be attached with an adhesive application roller (104) and then cutting the artificial graphite film (120) by inserting it into the cut semi-drying furnace (106) through the artificial graphite film input port (122); A semi-drying step (S300) of placing a cut artificial graphite film (101) on the upper surface of a belt of a belt rotation transport system (123) in which a belt rotates and a mid-infrared light (109) is irradiated to directly heat the inner surface of the artificial graphite film (101) in which several sheets of the cut artificial graphite film (120) are overlapped and attached with a synthetic resin adhesive to form a laminate, thereby semi-drying the artificial graphite film (101); and a heating and pressing step (B500) of heating and pressing and bonding the semi-dried cut artificial graphite film (120) with a high-temperature heating and pressing press (124); A device that induces an insulation breakdown phenomenon in which the insulation of a synthetic resin adhesive is destroyed by heating and compressing a semi-dried artificial graphite film (101) at a high temperature, a heating step (S400) in which artificial graphite films (101) are heated with a high temperature heating and compression press (124) of 130℃ to 200℃ to change the synthetic resin adhesive of non-conductive properties into conductive properties; and a drying and recovery step (B600) in which the artificial graphite films (101) that have been compressed by heating and changed into conductors and combined are completely dried to complete the finished product. The process is carried out in a drying recovery step (B600) in which an artificial graphite film (101) made by laminating and combining artificial graphite films (120) cut into pieces is placed on a drying shelf (126) of a shelf-fixed drying oven (125), dried by irradiating it with mid-infrared rays, and the substances generated during drying are discharged through a ventilation passage (117).
101 : 인조흑연필름 102 : 접착제공급 통
103 : 접착제공급관 104 : 접착제도포용롤러
105 : 인조흑연필름 적층 합체용 고무롤러 106 : 반 건조로
107 : 인조흑연필름이동용 받침대 108 : 인조흑연필름 이송롤러
109 : 중 적외선(mid-infrared) 전등 110 : 롤러방식 가열로
111 : 고정식 전기히터 112 : 가열용 롤러
113 : 가열롤러 온도제어기 114 : 가열압착접합고무롤러
115 : 가열압착접합금속롤러 116 : 중 적외선건조로
117 : 환기통로 118 : 전원분배기
119 : 절단용 프레스 120 : 절단된 인조흑연필름
121 : 접착제도포용 받침대 122 : 절단인조흑연필름 투입구
123 : 벨트회전이송시스템 124 : 고온가열압착프레스
125 : 선반고정식 건조로 126 : 건조용 선반
201 : 인조흑연필름투입롤러 202 : 인조흑연필름회수롤러101: Artificial graphite film 102: Adhesive supply container
103: Adhesive supply pipe 104: Adhesive application roller
105: Rubber roller for artificial graphite film lamination 106: Semi-drying furnace
107: Artificial graphite film moving stand 108: Artificial graphite film transport roller
109: Mid-infrared lamp 110: Roller-type heater
111: Fixed electric heater 112: Heating roller
113: Heating roller temperature controller 114: Heating compression bonding rubber roller
115: Heated compression bonding metal roller 116: Medium infrared drying furnace
117: Ventilation duct 118: Power distribution unit
119: Cutting press 120: Cut artificial graphite film
121: Adhesive application stand 122: Cut artificial graphite film input port
123: Belt rotation conveying system 124: High-temperature heating compression press
125: Fixed shelf drying oven 126: Drying shelf
201: Artificial graphite film input roller 202: Artificial graphite film recovery roller
Claims (2)
상기 합성수지접착제를 가열 압착하여 절연을 파괴하는 절연파괴 현상을 유도하여 절연을 파괴시켜 전기적 성질을 부도체성질에서 도체성질로 변질시켜 사용할 수 있도록 가열하는 가열온도가 최고 210℃이하 가열압착장치로 사용되는 가열롤러압착기.
상기 합성수지접착제를 가열 압착하여 절연을 파괴하는 절연파괴 현상을 유도하여 절연을 파괴시켜 전기적 성질을 부도체성질에서 도체성질로 변질시켜 사용할 수 있도록 가열하는 가열온도가 최고 210℃이하 가열압착장치로 사용되는 가열롤러압착기.
상기 적층으로 합체된 인조흑연필름내부부터 건조하기 위한 수단으로 중 적외선(mid-infrared)전등을 사용하는 건조로.
상기 건조로에서 가열프레스절단기로 절단된 인조흑연필름을 이동시키면서 건조하기 위한 방법으로 장치한 벨트회전 이송시스템.In a method and bonding device for laminating an artificial graphite film with a non-conductive synthetic resin adhesive and then heating it at a high temperature to change the electrical properties of the synthetic resin adhesive into a conductor;
A heating roller presser used as a heating press device with a heating temperature of up to 210°C that heats the synthetic resin adhesive to induce an insulation breakdown phenomenon that destroys insulation by heating and pressing the synthetic resin adhesive, thereby destroying insulation and changing the electrical properties from non-conductive to conductive so that it can be used.
A heating roller presser used as a heating press device with a heating temperature of up to 210°C that heats the synthetic resin adhesive to induce an insulation breakdown phenomenon that destroys insulation by heating and pressing the synthetic resin adhesive, thereby destroying insulation and changing the electrical properties from non-conductive to conductive so that it can be used.
A drying furnace using a mid-infrared light as a means for drying the inside of the artificial graphite film laminated as above.
A belt rotation conveying system installed as a method for drying artificial graphite film cut by a heating press cutter while moving it in the above drying furnace.
상기 1 액형 접착제에 경화제를 포함하는 2 액형 접착제.
상기 접착제에는 접착제와 점착제가 모두 포함된다.A synthetic resin adhesive used when laminating and attaching the above artificial graphite film, a one-component adhesive using thermosetting resin and thermoplastic resin as main ingredients.
A two-component adhesive comprising a hardener in the above one-component adhesive.
The above adhesive includes both an adhesive and an adhesive.
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| KR1020240011927A KR20250116844A (en) | 2024-01-26 | 2024-01-26 | A method and bonding device for laminating an artificial graphite film with a non-conductive synthetic resin adhesive and then changing the electrical properties of the synthetic resin adhesive into a conductor. |
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| KR1020240011927A KR20250116844A (en) | 2024-01-26 | 2024-01-26 | A method and bonding device for laminating an artificial graphite film with a non-conductive synthetic resin adhesive and then changing the electrical properties of the synthetic resin adhesive into a conductor. |
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