KR100356860B1 - manufacturing method for door latch plate - Google Patents
manufacturing method for door latch plate Download PDFInfo
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- KR100356860B1 KR100356860B1 KR1020000052415A KR20000052415A KR100356860B1 KR 100356860 B1 KR100356860 B1 KR 100356860B1 KR 1020000052415 A KR1020000052415 A KR 1020000052415A KR 20000052415 A KR20000052415 A KR 20000052415A KR 100356860 B1 KR100356860 B1 KR 100356860B1
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- South Korea
- Prior art keywords
- latch plate
- injection molding
- adhesive
- coating
- plastic injection
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Classifications
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- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4835—Heat curing adhesives
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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/523—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by dipping
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0077—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping removing burrs or flashes
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Lock And Its Accessories (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명은 도어 래치플레이트의 제조방법에 관한 것으로, 래치플레이트의 표면을 코로나 처리하고서 이에 접착제를 도포하여 상기 래치플레이트와 이의 표면으로 코팅되는 플라스틱재 사출 성형물 사이의 접착력을 증진시킴으로써, 플라스틱재의 피복층이 래치플레이트의 표면으로부터 박리되지 않도록 하는 데 그 목적이 있다.The present invention relates to a method of manufacturing a door latch plate, by corona treating the surface of the latch plate and applying an adhesive thereto to promote adhesion between the latch plate and the plastic injection molding coated on the surface thereof, whereby the coating layer of plastic material The purpose is to prevent peeling from the surface of the latch plate.
전술한 목적을 달성하기 위해 본 발명은, 원재료를 가공하여 래치플레이트를 성형하는 공정(S10)과; 성형된 래치플레이트상에 부식의 방지를 위해 도금을 실시하는 공정(S20); 도금이 이루어진 래치플레이트를 세척 및 건조시키는 공정(S30); 건조된 래치플레이트의 표면에 코로나 처리를 하여 래치플레이트의 표면에 대한 면조도를 거칠게 하는 공정(S40); 코로나 처리된 래치플레이트의 표면에 접착제를 도포하는 공정(S50); 도포된 접착제를 소정 시간 이후에 건조시키는 공정(S60); 도포된 접착제가 건조된 래치플레이트의 표면에 플라스틱재 사출 성형물을 코팅시키는 공정(S70) 및; 플라스틱재 사출 성형물의 피복이 완료된 다음 표면으로 거칠게 돌출된 부위(burr)를 제거하는 공정(S80)을 각각 순차적으로 거치는 것을 특징으로 한다.In order to achieve the above object, the present invention comprises the steps of forming a latch plate by processing the raw material (S10); Performing plating on the molded latch plate to prevent corrosion (S20); Washing and drying the plated latch plate (S30); Performing a corona treatment on the surface of the dried latch plate to roughen the surface roughness of the surface of the latch plate (S40); Applying an adhesive to the surface of the corona-treated latch plate (S50); Drying the applied adhesive after a predetermined time (S60); Coating a plastic injection molding on the surface of the latch plate to which the applied adhesive is dried (S70); After the coating of the plastic injection molding is completed, the step (S80) of removing the roughly protruding portion (burr) to the surface is characterized in that each through sequentially.
Description
본 발명은 도어 래치플레이트의 제조방법에 관한 것으로, 보다 상세하게는 금속재의 래치플레이트와 이의 표면으로 사출성형되는 피복층 사이의 접착력을 증진시켜 래치플레이트의 내구성을 향상시킬 수 있도록 하는 도어 래치플레이트의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a door latch plate, and more particularly, to manufacture a door latch plate to improve the durability between the latch plate of the metal material and the coating layer injection-molded on the surface thereof to improve the durability of the latch plate. It is about a method.
일반적으로 자동차에는 승객의 승/하차를 위해 차체에 힌지결합되어 개폐가능하게 설치된 도어를 구비하고 있는 바, 이 도어에는 잠금에 관여하는 래치와 스트라이커를 갖추고 있는 데, 상기 래치는 도어측에 설치되어 동작가능하게 구성된 것이고, 상기 스트라이커는 차체측에 설치되어 고정된 것이다.In general, a vehicle includes a door hinged to a vehicle body to be opened and closed for passengers to get on and off, and the door includes a latch and a striker engaged in locking, and the latch is installed at the door side. The striker is configured to be operable and is fixed to the vehicle body side.
따라서, 도어의 잠금 및 해제시에는 상기 래치가 스트라이커측에 체결 내지 해제되면서 상기 차체에 대해 도어가 개폐가능하게 된다.Therefore, when the door is locked and released, the latch is fastened to or released from the striker side, so that the door can be opened and closed with respect to the vehicle body.
그런데, 상기 래치와 스트라이커는 각각 스틸재로 형성됨에 따라 상호 체결될 때에는 접촉에 따른 충격은 물론 이로 인한 소음까지도 유발되는 실정이다.However, since the latch and the striker are each formed of steel, the latches and the strikers are not only impacted by contact but also noise caused when they are fastened to each other.
이에 따라, 종래에는 상기 래치의 표면에 플라스틱재 사출 성형물을 코팅하여 상기 스트라이커와의 접촉시 발생되는 충격 및 소음을 감소시키도록 되어 있다.Accordingly, in the related art, a plastic injection molding is coated on the surface of the latch to reduce the impact and noise generated when contacting the striker.
한편, 상기와 같이 플라스틱재 사출 성형물이 코팅되는 종래의 래치의 제조는 도 1에 도시된 바와 같이, 원재료인 금속판(SCM420)을 적절하게 가공하여 래치플레이트를 성형하는 공정(S10)과, 성형된 래치플레이트상에 부식의 방지를 위한 아연을 도금하는 공정(S20), 도금이 이루어진 래치플레이트를 세척 및 건조시키는 공정(S30), 건조된 래치플레이트의 표면에 플라스틱재 사출 성형물을 피복시키기 위해 폴리에틸렌을 사출시키는 공정(S40) 및, 플라스틱재의 폴리에틸렌 사출 성형물의 피복이 완료된 다음 가장자리부위의 거칠게 돌출된 부위(burr)를 제거하는 공정(S50)을 각각 순차적으로 거쳐 이루어진다.On the other hand, the manufacture of a conventional latch coated with a plastic injection molding as described above, as shown in Figure 1, the process of forming a latch plate by appropriately processing the metal plate (SCM420) as a raw material (S10), and A process of plating zinc to prevent corrosion on the latch plate (S20), a process of washing and drying the plated latch plate (S30), and polyethylene in order to coat the plastic injection molding on the surface of the dried latch plate. After the injection process (S40) and the coating of the polyethylene injection molding of the plastic material is completed, the step (S50) of removing the roughly protruding burrs on the edges is sequentially performed.
그런데, 상기와 같이 금속재의 래치플레이트의 표면에 플라스틱재 사출 성형물을 코팅시켜 제조하는 래치플레이트에서는, 금속재의 래치플레이트와 이 래치플레이트의 표면에 코팅된 피복층 사이의 접착력이 약하므로, 상기 래치플레이트를 스트라이커상에 빈번하게 체결시킬 경우에는 래치플레이트의 표면에 코팅된 피복층이 박리되는 현상이 발생된다.However, in the latch plate manufactured by coating a plastic injection molding on the surface of the metal latch plate as described above, since the adhesive force between the metal latch plate and the coating layer coated on the surface of the latch plate is weak, the latch plate is removed. In the case of fastening frequently on the striker, a phenomenon occurs that the coating layer coated on the surface of the latch plate is peeled off.
이와 같이 원재료인 래치플레이트의 표면으로부터 피복층이 박리되면, 박리된 피복층중 일부가 래치플레이트와 스트라이커 사이의 정상적인 체결동작을 방해할 뿐만 아니라, 극심한 경우에는 래치플레이트와 스트라이커 사이의 체결을 불가능하게 하기도 한다.When the coating layer is peeled off from the surface of the latch plate as the raw material, some of the peeled coating layers prevent the normal fastening operation between the latch plate and the striker, and in extreme cases, the fastening between the latch plate and the striker is impossible. .
또한, 상기와 같이 피복층이 박리된 래치플레이트는 스트라이커와 체결시 발생되는 충격에 대한 완충작용을 받지 못하게 되므로 소음을 유발시키게 된다.In addition, the latch plate is peeled off as described above is not subjected to the buffer action against the shock generated when the striker and the noise is caused.
이에 본 발명은 상기와 같은 점을 감안하여 안출된 것으로, 래치플레이트의 표면을 코로나 처리하고서 이에 접착제를 도포하여 상기 래치플레이트와 이의 표면으로 코팅되는 플라스틱재 사출 성형물 사이의 접착력을 증진시킴으로써, 플라스틱재의 피복층이 래치플레이트의 표면으로부터 박리되지 않도록 하는 데 그 목적이 있다.Accordingly, the present invention has been made in view of the above, by corona treating the surface of the latch plate and applying an adhesive thereto to enhance the adhesive force between the latch plate and the injection molded plastic material coated on the surface thereof, The purpose is to prevent the coating layer from peeling off from the surface of the latch plate.
상기와 같은 목적을 달성하기 위한 본 발명은, 원재료를 가공하여 래치플레이트를 성형하는 공정과; 성형된 래치플레이트상에 부식의 방지를 위해 도금을 실시하는 공정; 도금이 이루어진 래치플레이트를 세척 및 건조시키는 공정; 건조된 래치플레이트의 표면에 코로나 처리를 하여 래치플레이트의 표면에 대한 면조도를 거칠게 하는 공정; 코로나 처리되어 면조도가 거칠게 된 래치플레이트의 표면에 플라스틱재 사출 성형물을 코팅시키는 공정 및; 플라스틱재 사출 성형물의 피복이 완료된 다음 표면으로 거칠게 돌출된 부위(burr)를 제거하는 공정을 각각 순차적으로 거치는 것을 특징으로 한다.The present invention for achieving the above object, the process of forming a latch plate by processing the raw material; Plating the molded latch plate to prevent corrosion; Washing and drying the plated latch plate; Performing a corona treatment on the surface of the dried latch plate to roughen the surface roughness of the surface of the latch plate; Coating a plastic injection molding on the surface of the latch plate having a corona treatment and roughened surface roughness; After the coating of the plastic injection molding is completed, it is characterized in that to sequentially go through the process of removing the rough (burr) protruding to the surface, respectively.
도 1은 종래 도어 래치플레이트의 제조공정을 도시한 블럭도.1 is a block diagram showing a manufacturing process of a conventional door latch plate.
도 2는 본 발명에 따른 도어 래치플레이트의 제조공정을 도시한 블럭도.Figure 2 is a block diagram showing a manufacturing process of the door latch plate according to the present invention.
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 따른 도어 래치플레이트의 제조공정을 도시한 블럭도이다.2 is a block diagram showing a manufacturing process of a door latch plate according to the present invention.
본 발명은 도면에 도시된 바와 같이, 도어에 구비되어 차체에 구비된 스트라이커와 선택적으로 체결되어 도어를 잠그도록 하는 래치의 제조는, 원재료인 금속판을 적절하게 절단 및 절곡 가공하여 래치플레이트를 성형하는 공정(S10)과, 성형된 래치플레이트상에 부식의 방지를 위한 아연을 도금하는 공정(S20), 도금이 이루어진 래치플레이트를 세척 및 건조시키는 공정(S30), 건조된 래치플레이트의 표면에 코로나 처리(표면에 미세한 구멍을 천공하기 위한 방전가공의 일종임)를 하여 래치플레이트의 표면에 대한 면조도를 거칠게 하는 공정(S40), 코로나 처리된 래치플레이트의 표면에 열경화성 접착제를 딥핑방식으로 도포하는 공정(S50), 도포돤 열경화성 접착제를 소정의 시간에 걸쳐 열풍으로 건조하는 공정(S60), 열경화성 접착제가 도포되어 건조된 래치플레이트의 표면에 플라스틱재 사출 성형물을 피복시키기 위해 폴리에틸렌을 사출시키는 공정(S70) 및, 플라스틱재의 폴리에틸렌 사출 성형물의 피복이 완료된 다음 가장자리부위의 거칠게 돌출된 부위(burr)를 제거하는 공정(S80)을 각각 순차적으로 거쳐 이루어진다.The present invention, as shown in the drawings, the manufacture of the latch is provided in the door and selectively fastened to the striker provided in the vehicle body to lock the door, forming a latch plate by appropriately cutting and bending the metal plate as a raw material Process (S10), the step of plating zinc for prevention of corrosion on the molded latch plate (S20), the step of washing and drying the plated latch plate (S30), corona treatment on the surface of the dried latch plate (A kind of electric discharge machining to drill fine holes on the surface) to roughen the surface roughness of the surface of the latch plate (S40), and to apply the thermosetting adhesive to the surface of the corona-treated latch plate by a dipping method ( S50), the process of drying the coated thermosetting adhesive with hot air over a predetermined time (S60), the thermosetting adhesive is applied and dried Injecting polyethylene to coat the plastic injection molding on the surface of the tooth plate (S70) and removing the roughly protruding burrs on the edges after the polyethylene injection molding of the plastic is completed (S80). Through each of them is made sequentially.
즉, 본 발명에 따른 도어 래치플레이트의 제조공정은 래치플레이트의 성형공정후 아연도금을 마친 단계에서 플라스틱재 사출 성형물을 코팅하기 전단계에서 상기 래치플레이트의 표면과 플라스틱재 사출 성형물로 이루어지는 피복층 사이의 결합력의 증진을 위해 래치플레이트의 표면에 코로나 처리를 하여 면조도를 거칠게 하는 공정과, 코로나 처리된 래치플레이트의 표면에 열경화성 접착제를 도포하는 공정이 추가로 투여되어 이루어지는 것이다.That is, in the manufacturing process of the door latch plate according to the present invention, the bonding force between the surface of the latch plate and the coating layer made of the plastic injection molding in the step of coating the plastic injection molding after the galvanization after the molding process of the latch plate. In order to enhance the surface of the latch plate by corona treatment to roughen the surface roughness, and the step of applying a thermosetting adhesive on the surface of the corona treated latch plate is further administered.
여기서, 상기 도금공정후 래치플레이트의 표면에 가해지는 코로나 처리공정은 방전가공의 일종으로 상기 래치플레이트의 표면에 걸쳐 미세한 구멍을 천공하기 위한 공정으로, 코로나 처리후 상기 래치플레이트의 표면에는 미세한 천공구멍이 전 영역에 걸쳐 형성된다.Here, the corona treatment process applied to the surface of the latch plate after the plating process is a process for drilling a minute hole over the surface of the latch plate as a kind of electrical discharge machining, and a minute perforation hole on the surface of the latch plate after the corona treatment. It is formed over the whole area.
그리고, 상기 코로나 처리공정후 래치플레이트의 표면에 실시되는 열경화성 접착제를 도포하여 열풍으로 건조하는 공정은 코로나 처리된 래치플레이트의 표면과 이후에 시행되는 플라스틱재의 폴리에틸렌 사출 성형물의 사출성형공정에서 코팅되는 피복층 사이의 접합력을 증진시키기 위한 것이다.In addition, the step of applying a thermosetting adhesive applied to the surface of the latch plate after the corona treatment process and drying with hot air is a coating layer coated on the surface of the corona treated latch plate and the injection molding process of a polyethylene injection molding of a plastic material to be performed thereafter. It is to promote the adhesion between.
즉, 상기 코로나 처리된 래치플레이트의 표면에 도포되어 건조된 열경화성 접착제는 상기 플라스틱재의 폴리에틸렌 사출 성형물의 사출성형공정에서의 고열에 의해 녹으면서 상기 래치플레이트의 표면에 형성되는 다수의 천공으로 스며들게 되고, 이 래치플레이트의 표면에 형성된 미세 천공구멍으로 스며든 열경화성 접착제는 플라스틱재 사출 성형물이 형성하는 피복층과 보다 더 견고하게 접착시켜 주게 되는 것이다.That is, the thermosetting adhesive applied to the surface of the corona treated latch plate is soaked by a plurality of perforations formed on the surface of the latch plate while being melted by high heat in the injection molding process of the polyethylene injection molding of the plastic material, The thermosetting adhesive penetrating into the microperforated hole formed on the surface of the latch plate is more firmly bonded to the coating layer formed by the plastic injection molding.
한편, 상기 코로나 처리된 래치플레이트상에 도포되는 열경화성 접착제를 열풍건조한 다음에는 도포된 열경화성 접착제층의 두께를 대략 50㎛로 균일하게 하기 위해 표면으로부터 불균일하게 돌출된 접착제층을 제거시키는 공정(S90)이 추가될 수도 있는 데, 이는 이후 시행되는 플라스틱재의 폴리에틸렌 사출 성형물의 사출성형공정에서 피복층이 균일하게 코팅될 수 있도록 하기 위함인 것이다.Meanwhile, after hot-air drying the thermosetting adhesive applied on the corona-treated latch plate, a step of removing the non-uniformly protruding adhesive layer from the surface to uniform the thickness of the applied thermosetting adhesive layer to about 50 μm (S90). This may be added in order to allow the coating layer to be uniformly coated in the injection molding process of the polyethylene injection molding of the plastic material to be carried out later.
따라서, 상기와 같은 공정을 거쳐 제조되는 래치플레이트는 이의 표면으로 코팅되는 피복층이 표면에 보다 더 견고하게 접착될 수 있으므로, 상기 래치플레이트와 스트라이커 사이의 체결이 빈번하게 이루어지더라도 접촉에 의한 마찰 등에 의해 피복층이 래치플레이트의 표면으로부터 박리되지 않게 된다.Therefore, the latch plate manufactured through the above process can be more firmly adhered to the coating layer coated on the surface thereof, even if the fastening between the latch plate and the striker is frequently made, such as friction due to contact This prevents the coating layer from peeling off from the surface of the latch plate.
이 결과, 상기 래치플레이트의 표면에 코팅된 피복층은 래치플레이트가 스트라이커와 빈번한 체결동작중에 박리되지 않게 되므로, 래치플레이트와 스트라이커 사이의 체결시 발생되는 충격을 충분히 완충할 수 있게 됨은 물론, 이에 따른 접촉소음도 현저하게 줄일 수 있게 된다.As a result, the coating layer coated on the surface of the latch plate is not peeled off during the frequent fastening operation with the striker, so that the shock generated during the fastening between the latch plate and the striker can be sufficiently cushioned, and thus the contact is made. Noise can also be significantly reduced.
이상 설명한 바와 같이 본 발명에 따른 도어 래치플레이트의 제조방법에 의하면, 래치플레이트의 표면으로 코팅되는 플라스틱재의 폴리에틸렌 사출 성형물의 피복층에 대한 접착력을 래치플레이트의 표면에 시행하는 코로나 처리공정과 열경화성 접착제의 도포공정을 통해 보다 더 향상시킴으로써, 상기 래치플레이트와 스트라이커 사이의 빈번한 체결에도 피복층이 래치플레이트의 표면으로부터 박리되지 않게 되므로, 부품의 내구수명이 보장되는 효과가 있게 되는 것이다.As described above, according to the manufacturing method of the door latch plate according to the present invention, a corona treatment process for applying the adhesive force to the coating layer of the polyethylene injection molding of the plastic material coated on the surface of the latch plate to the surface of the latch plate and the application of the thermosetting adhesive By further improving through the process, the coating layer does not peel off from the surface of the latch plate even during frequent fastenings between the latch plate and the striker, thereby ensuring the durability life of the part.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000052415A KR100356860B1 (en) | 2000-09-05 | 2000-09-05 | manufacturing method for door latch plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000052415A KR100356860B1 (en) | 2000-09-05 | 2000-09-05 | manufacturing method for door latch plate |
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| KR20020019250A KR20020019250A (en) | 2002-03-12 |
| KR100356860B1 true KR100356860B1 (en) | 2002-10-18 |
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| KR1020000052415A KR100356860B1 (en) | 2000-09-05 | 2000-09-05 | manufacturing method for door latch plate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612149A (en) * | 1983-04-25 | 1986-09-16 | The Budd Company | Compression molding a charge using vacuum |
| KR0151850B1 (en) * | 1988-09-26 | 1998-10-15 | 제임즈 제이 플린 | Process for forming a composite structure of thermoplastic polymer and sheet molding compound |
| WO1999001233A1 (en) * | 1997-06-30 | 1999-01-14 | Ge Bayer Silicones Gmbh & Co. Kg | Method for coating silicone elastomers |
| EP0974478A2 (en) * | 1998-07-23 | 2000-01-26 | Ticona GmbH | Door module for motor vehicles with functional parts of plastic |
| KR100321292B1 (en) * | 1999-04-29 | 2002-03-18 | 이계안 | Heat and light-resistant instrument panel and preparing method thereof |
-
2000
- 2000-09-05 KR KR1020000052415A patent/KR100356860B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612149A (en) * | 1983-04-25 | 1986-09-16 | The Budd Company | Compression molding a charge using vacuum |
| KR0151850B1 (en) * | 1988-09-26 | 1998-10-15 | 제임즈 제이 플린 | Process for forming a composite structure of thermoplastic polymer and sheet molding compound |
| WO1999001233A1 (en) * | 1997-06-30 | 1999-01-14 | Ge Bayer Silicones Gmbh & Co. Kg | Method for coating silicone elastomers |
| EP0974478A2 (en) * | 1998-07-23 | 2000-01-26 | Ticona GmbH | Door module for motor vehicles with functional parts of plastic |
| KR100321292B1 (en) * | 1999-04-29 | 2002-03-18 | 이계안 | Heat and light-resistant instrument panel and preparing method thereof |
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| KR20020019250A (en) | 2002-03-12 |
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