KR20020072978A - Union Method for Polyethylen Pipe - Google Patents

Union Method for Polyethylen Pipe Download PDF

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Publication number
KR20020072978A
KR20020072978A KR1020010013088A KR20010013088A KR20020072978A KR 20020072978 A KR20020072978 A KR 20020072978A KR 1020010013088 A KR1020010013088 A KR 1020010013088A KR 20010013088 A KR20010013088 A KR 20010013088A KR 20020072978 A KR20020072978 A KR 20020072978A
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KR
South Korea
Prior art keywords
resin pipe
resin
connector
pipe
pipes
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KR1020010013088A
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Korean (ko)
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KR100417032B1 (en
Inventor
이종섭
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주식회사 테크소닉
오병수
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Priority to KR10-2001-0013088A priority Critical patent/KR100417032B1/en
Publication of KR20020072978A publication Critical patent/KR20020072978A/en
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Publication of KR100417032B1 publication Critical patent/KR100417032B1/en

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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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE: A method for joining a resin pipe is provided to improve a working ratio and increase an intensity and tightness by melting and joining a joining part of a circle resin pipe by an infrared ray heat source. CONSTITUTION: Thermal films(40) are arranged at an inner side surface of a connecting member(20) and a surface portion of resin pipes(10,10a). Each of the infrared ray lamp(30) is formed by a polyethylene system black film. The thermal films(40) quickly absorb and simultaneously transfer an external infrared ray heat source. An infrared ray lamp(30) is arranged at a predetermined point of the connecting member(20). Vertical and horizontal surfaces of pipes are melted and joined by a melting heat induced by means of the thermal films(40) based on an infrared provided from the infrared ray lamp(30).

Description

수지파이프의 접합방법{Union Method for Polyethylen Pipe}Union Method for Polyethylen Pipe

본 발명은 수지파이프와 같은 요소들의 접합에 관한 것으로서, 더욱 상세하게는 원형 수지파이프의 접합부분을 적외선의 열원으로 용융시켜 접합함으로써 간편한 시공으로 작업성을 향상시키면서 강도와 기밀성을 높이도록 하는 수지파이프의 접합방법에 관한 것이다.The present invention relates to the joining of elements such as resin pipes, and more particularly, to melt and join the joining portions of the circular resin pipes with a heat source of infrared rays, thereby increasing the strength and airtightness while improving workability by simple construction. It relates to a bonding method of.

일반적으로, 수지파이프의 접합에 유기용제 또는 접합제를 이용하거나 용융접합이 주로 사용되고 있다.Generally, an organic solvent or a bonding agent is used for joining resin pipes, or melt bonding is mainly used.

폴리에틸렌(Poiyethylen : PE)재 파이프의 경우에는 분자결합구조가 매우 안정되어 적합한 유기용재 또는 접착제가 없기 때문에 이러한 재료의 접합은 접합부를 용융시켜 접합하는 것이 가장 적합한 것으로 알려져 왔다. 이렇게 접합부를 용융시켜 접합하는 것은 전기저항열 용융접합, 열판용융접합, 초음파용융접합 및 열기체용융접합 등이 있으나 폴리에틸렌관 배관에는 주로 전기저항열용융접합법과 열판용융접합법이 사용되고 있다.In the case of polyethylene (PE) pipes, the bonding of these materials has been known to be most suitable because the molecular bonding structure is very stable and there is no suitable organic solvent or adhesive. In this manner, the joints are melted and joined, such as electric resistance hot melt welding, hot plate welding, ultrasonic welding, and hot body welding.

이러한 종래의 열판용융접합은 도1(a) 내지 도1(d)를 참고하여 보다 상세하게 설명하기로 한다.This conventional hot plate melt bonding will be described in more detail with reference to FIGS. 1 (a) to 1 (d).

서로 연결하는 수지파이프(1)(1a)의 단부간에 열판(2)을 배치하고 수지파이프(1)(1a)를 대응하는 방향으로 압력을 주어 열판(2)을 기초로 가열한다.(도1a 상태)The hot plates 2 are arranged between the ends of the resin pipes 1 and 1a which are connected to each other, and the resin pipes 1 and 1a are pressed in the corresponding directions and heated based on the hot plates 2 (Fig. 1A). condition)

이렇게 수지파이프(1)(1a)에 대응하는 단부를 열판(2)으로 가열하면서 계속적으로 가압을 하면 열판(2)에 접촉되어 있는 단부가 용융되어 소정의 용융부(3)가 형성된다(도1b 상태))In this way, when the end portion corresponding to the resin pipe 1 (1a) is continuously pressed while heating with the hot plate 2, the end portion in contact with the hot plate 2 is melted to form a predetermined melted portion 3 (Fig. 1b status))

다음으로는 서로 대응하는 한 쌍의 수지파이프(1)(1a) 사이에 배치되어 있던 열판(2)을 제거하여 용접(도1c 상태)를 이루게 하고, 이어서 용융부(3)를 상호 접합하여 용접함으로서 수지파이프(1)(1a)간의 접합을 이룬다.(도1d 상태)Next, the hot plates 2 disposed between the pair of resin pipes 1 and 1a corresponding to each other are removed to form a weld (FIG. 1C state), and the melted portions 3 are then joined to each other for welding. By doing so, the resin pipes 1 and 1a are joined together (FIG. 1D state).

그러나, 상기와 같은 열판용융접합에 있어서, 광범위한 준비절차 및 5단계의 복잡한 공정을 거쳐야 하므로 작업성이 저하되는 문제점이 있다.However, in the hot plate melt welding as described above, there is a problem that workability is lowered because it has to go through a wide range of preparatory procedures and five complex steps.

한편 종래 사용되는 전기저항열접합방법은 도2(a)(b)를 참조하여 상세하게설명하기로 한다.Meanwhile, the conventional resistive thermal bonding method will be described in detail with reference to FIGS. 2A and 2B.

서로 연결할 수지파이프(1)(1a)들을 연결구(4)로 연결하며, 상기 연결구(4)는 파이프와 동일재질로 형성된 것으로 연결할 파이프 단부들이 마주보게 내입된다. 상기 내입된 파이프 단부들 외측면에 접합되는 연결구(4)의 내측부에는 발열코일(5)이 성형시 감겨져 제공되고, 외주면에는 상기 발열코일(5)에 전류를 공급하도록 단자(6)가 돌출형성되어 있다. 상기 단자에 전원이 연결되면, 저항이 큰 발열코일(5)에서 발생되는 저항열에 의해 연결구(4)의 내측부와 그에 접촉된 파이프(1)(1a)들의 단부 외측면이 용융상태로 되어 일체로 접합됨으로써 파이프(1)(1a)들의 단부들은 연결구를 매개로 하여 서로 연결된다.The resin pipes (1) (1a) to be connected to each other are connected by a connector (4), and the connector (4) is formed of the same material as the pipe, and the pipe ends to be connected to each other are faced with each other. A heating coil 5 is wound around the inner side of the connector 4 which is joined to the outer surface of the inner pipe ends, and the terminal 6 protrudes so as to supply current to the heating coil 5 on the outer circumferential surface thereof. It is. When the power is connected to the terminal, the inner side of the connector 4 and the outer side of the end portions of the pipes 1 and 1a contacted by the resistance heat generated by the heat generating coil 5 having a large resistance are melted and integrated. By joining, the ends of the pipes 1, 1a are connected to each other via a connector.

그러나, 상기와 같은 전기저항열접합에 있어서, 연결구(4)와 파이프(1)(1a)들의 단부가 용융되기 위해서는 발열코일(5)에 고전류가 단시간에 공급되어야 하므로 이를 위한 정밀제어장치가 필요하고 발열코일(4)은 파이프의 직경, 두께 등을 감안하여 연결구(4) 성형시 내측부에 일정간격으로 권취된 상태로 제공되어야 하는데 그 작업이 매우 어렵기 때문에 고가의 전용장비의 이용이 필수적이다. 또한, 발열코일(4)이 단선된 경우에는 외부로 부터 공급되는 전류가 차단되어 발열코일(4)이 가열되지 못하게 되므로 접합작업을 수행할 수 없는 문제들이 있다.However, in the electrical resistance thermal bonding as described above, in order for the ends of the connector 4 and the pipes 1 and 1a to be melted, a high current must be supplied to the heating coil 5 in a short time, so a precise control device for this is required. In addition, the heating coil 4 should be provided in a state in which it is wound at a predetermined interval when forming the connector 4 in consideration of the diameter, thickness, etc. of the pipe, but the use of expensive dedicated equipment is essential because the work is very difficult. . In addition, when the heating coil 4 is disconnected, the current supplied from the outside is cut off so that the heating coil 4 cannot be heated, so there is a problem in that the joining operation cannot be performed.

본 발명은 이와 같은 종래의 기술을 해결하기 위하여 창출된 것으로서, 안전이 엄격히 규정되어 있는 가스공급라인에 적용되는 수지파이프의 연결부위가 내부에 비트의 잔류가 없는 상태에서 강도와 기밀성이 양호하게 용융접합을 이루게 하여 작업성을 극대화하면서 제품신뢰성을 확보할 수 있는 수지파이프의 접합방법을 제공하는데 있다.The present invention was created in order to solve such a conventional technology, and the strength and airtightness of the resin pipe applied to the gas supply line where the safety is strictly specified are melted with good strength and airtightness in the absence of residual bits. The present invention provides a method of joining resin pipes that can secure the product reliability while maximizing workability.

상기 목적을 달성하기 위한 본 발명에 따른 수지파이프의 접합방법에 의한 기술적 특징은 수지파이프를 용융접합하는 것에 있어서, 수지파이프와 수지파이프의 연결할 단부들을 내입하는 연결구의 내측부와 상기 수지파이프의 표면부에 발열필름을 배치하고, 상기 수지파이프의 외부 소정위치에 적외선램프를 배치시키며, 상기 적외선램프에서 제공된 적외선을 기초로 상기 발열필름으로 유도되는 용융열에 의해 파이프들의 수직 및 수평면을 용융접합시키도록 구성된다.Technical features of the resin pipe joining method according to the present invention for achieving the above object in the melt-bonding resin pipe, the inner portion of the connector and the surface portion of the resin pipe to insert the connecting ends of the resin pipe and the resin pipe Arranging a heating film on the substrate, and placing an infrared lamp at a predetermined position outside of the resin pipe, and fusion-bonding the vertical and horizontal planes of the pipes by the heat of fusion induced by the heating film based on the infrared rays provided from the infrared lamp. do.

여기서 상기 연결구의 내측에 제공되는 발열필름은 폴리에틸렌계 블랙필름으로 이루어지는 것이 바람직하다.Here, the heating film provided inside the connector is preferably made of a polyethylene-based black film.

또한 상기 연결구의 내측에 제공되는 발열필름은 수지파이프와 대응하여 적외선램프의 열을 빠르게 흡수하여 발산하는 합성수지계 고분자필름으로 이루어지는 것이 바람직하다.In addition, the heating film provided on the inside of the connector is preferably made of a synthetic resin-based polymer film that absorbs and dissipates the heat of the infrared lamp quickly in response to the resin pipe.

도 1a 내지 도 1d는 종래의 열판용융접합 공정도를 나타내고,1A to 1D show a conventional hot plate welding process diagram,

도 2a 및 도 2b는 전기저항열접합을 나타내는 종단면도와 사시도이고,2A and 2B are a longitudinal sectional view and a perspective view showing an electrical resistance thermal junction,

도 3는 본 발명에 따른 접합상태의 구성을 보이는 단면도이고,3 is a cross-sectional view showing the configuration of the bonded state according to the present invention,

도 4는 도 3의 종단면도이다.4 is a longitudinal cross-sectional view of FIG. 3.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10, 10a : 수지파이프20 : 연결구10, 10a: resin pipe 20: connector

30 : 적외선램프40 : 발열필름30: infrared lamp 40: heat film

이하에서, 본 발명의 일 실시예를 예시한 첨부도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings illustrating an embodiment of the present invention will be described in detail.

도 3는 본 발명에 따른 접합상태의 구성을 보이는 종단면도이고, 도 4는 도 3의 종단면도이다.3 is a longitudinal cross-sectional view showing the configuration of the bonded state according to the present invention, Figure 4 is a longitudinal cross-sectional view of FIG.

도 3 및 도 4를 참고하면 본 발명에 따른 폴리에틸렌관의 접합방법은 연결할 원통형상의 수지파이프(폴리에틸렌관;Polyethylen Pipe)(10,10a)을 내장하는 연결구(20)와, 그 연결구(20) 외부에 배치되어 소정의 적외선을 방사하는 적외선램프(30)의 방사열을 빠르게 흡수하여 발산하는 발열필름(40)으로 구성된다.3 and 4, the joining method of a polyethylene pipe according to the present invention includes a connector 20 incorporating a cylindrical resin pipe (polyethylene pipe) (10, 10a) to be connected, and the connector 20 outside It is arranged in the heat generating film 40 to absorb and radiate the radiant heat of the infrared lamp 30 which is disposed in the predetermined infrared radiation.

연결구(20)는 파이프라인을 형성하는 한 쌍의 수지파이프(10)(10a)의 연결부위를 수용하여 접합을 안전하게 이루는 매개체로 사용되고 있으며, 수지파이프가 용융될 때 충분한 강도를 유지하도록 한다.The connector 20 is used as a medium for securely bonding by receiving a connection portion of the pair of resin pipes 10 and 10a forming a pipeline, and maintains sufficient strength when the resin pipe is melted.

발열필름(40)은 연결구(20)의 내측면과 수지파이프(10)(10a)의 표면부에 배치되며, 외부에서 방사되는 적외선의 열원을 빨리 흡수함과 동시에 전달하는 역활을 한다. 보다 바람직한 열원의 유도를 위하여 발열필름(40)은 폴리에틸렌제 블랙필름으로 이루어지는 것이 바람직하다. 또한 적외선의 열을 빠르게 흡수하여 발산하는 합성수지계 고분자필름으로 이루어지는 것이 바람직하다.The heating film 40 is disposed on the inner surface of the connector 20 and the surface of the resin pipes 10 and 10a, and serves to quickly absorb and transmit the heat source of infrared radiation emitted from the outside. In order to induce a more preferable heat source, the exothermic film 40 is preferably made of a black polyethylene film. In addition, it is preferably made of a synthetic resin polymer film that quickly absorbs and radiates infrared heat.

적외선램프(30)는 수지파이프(10(10a)를 수용한 연결구(20)의 외부 소정지점에 배치되고 수지가 용융될 수 있는 적외선이 방사되는 것으로 그 빛의 파장이나 밝기등은 통상의 공지된 것이나 사용되는 것과 동일하므로 구체적인 설명은 생략한다.The infrared lamp 30 is disposed at a predetermined point outside of the connector 20 accommodating the resin pipe 10 (10 a) and emits infrared rays in which the resin can be melted. The wavelength and brightness of the light are generally known. It is the same as that used, but detailed description thereof will be omitted.

이상과 같은 본 발명의 수지파이프의 접합방법은 수지파이프(10)와 수지파이프(10)의 단부를 대응하여 접촉한 상태로 연결구(20)에 내장함과 동시에 연결구(20)의 내측면과 수지파이프(10(10a)의 표면부에 발열필름(40)을 배치하고, 상기 연결구(20)의 외부 소정위치에 배치되어 있는 적외선램프(30)로 소정의 적외선을 방사하면 상기 발열필름(40)이 적외선의 열기를 빠른 속도로 흡수하면서 방사하게 되어 수지파이프(10)(10a)로 전달되는 열에 의하여 연결구의 내측부와 그에접촉된 수지파이프가 용융되어 일체화된 상태에서 냉각됨에 따라 견고하게 접합된다.The method of joining the resin pipes according to the present invention as described above incorporates the resin pipe 10 and the ends of the resin pipe 10 in a state in which the end portions of the resin pipe 10 are in contact with each other, and at the same time, the inner surface of the connector 20 and the resin are formed. When the heat generating film 40 is disposed on the surface of the pipe 10 (10 a) and the predetermined infrared rays are radiated by the infrared lamp 30 disposed at a predetermined position outside of the connector 20, the heat generating film 40 is provided. The infrared heat is absorbed and radiated at a high speed so that the inner part of the connector and the resin pipe contacted thereto are melted and cooled in an integrated state by heat transferred to the resin pipes 10 and 10a, thereby being firmly bonded.

따라서, 발열필름(40)의 의하여 수지파이프(10)(10a)의 연결한 단부간의 접합은 이물질의 유입없이 안전하고 양호한 상태로 용융접합하게 되어 제품신뢰성을 배양하게 된다.Therefore, the bonding between the ends connected to the resin pipes 10 and 10a by the heat generating film 40 is melt-bonded in a safe and good state without inflow of foreign substances, thereby cultivating product reliability.

상술한 바와같이, 본 발명에 따른 수지파이프의 접합방법은 연결구의 외부에서 방사되는 적외선에 의해 수지파이프의 용융접합을 이루어 간단한 구조로 비용절감을 이루면서 내부에 비트의 잔류를 배제함과 동시에 강도와 기밀성을 배영하고, 비파괴 평가를 가능하게 하는 육안검수가 가능하여 안전이 염격히 규정되는 가스공급라인의 적용이 가능한 효과가 있다.As described above, the resin pipe joining method according to the present invention is made by melt-bonding the resin pipe by the infrared radiation emitted from the outside of the connector to achieve a cost-saving structure with a simple structure while eliminating the residual bits and the strength at the same time It is possible to apply the gas supply line where safety is tightly defined because the naked eye can check the airtightness and make nondestructive evaluation possible.

Claims (3)

수지파이프를 용융접합하는 것에 있어서,In melt-bonding the resin pipe, 수지파이프와 수지파이프의 연결할 단부들을 내입하는 연결구의 내측부와 상기 수지파이프의 표면부에 발열필름을 배치하고, 상기 수지파이프의 외부 소정위치에 적외선램프를 배치시키며, 상기 적외선램프에서 제공된 적외선을 기초로 상기 발열필름으로 유도되는 용융열에 의해 파이프들의 수직 및 수평면을 용융접합시키는 것을 특징으로 하는 수지파이프의 접합방법.The heat generating film is disposed on the inner part of the connector and the surface of the resin pipe, and the infrared lamp is disposed at a predetermined position outside of the resin pipe, and the infrared light is provided from the infrared lamp. The method of claim 1, wherein the vertical and horizontal planes of the pipes are melt-bonded by the heat of fusion induced by the heating film. 제1항에 있어서,The method of claim 1, 상기 연결구의 내측에 제공되는 발열필름은 폴리에틸렌계 블랙필름으로 이루어짐을 특징으로 하는 수지파이프의 접합방법.The heating film provided inside the connector is a bonding method of the resin pipe, characterized in that made of a polyethylene-based black film. 제 1 항에 있어서,The method of claim 1, 상기 연결구의 내측에 제공되는 발열필름은 수지파이프와 대응하여 적외선램프의 열을 빠르게 흡수하여 발산하는 합성수지계 고분자필름으로 이루어진 것을 특징으로 하는 수지파이프의 접합방법.The heating film provided on the inside of the connector is a resin pipe bonding method, characterized in that made of a synthetic resin-based polymer film to quickly absorb and dissipate heat from the infrared lamp corresponding to the resin pipe.
KR10-2001-0013088A 2001-03-14 2001-03-14 Union Method for Polyethylen Pipe KR100417032B1 (en)

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GB2255041B (en) * 1991-04-24 1995-04-19 British Gas Plc Polyolefin coupler for joining polyolefin pipes
GB2255040B (en) * 1991-04-24 1995-02-08 British Gas Plc Method of forming a welded joint between polyolefinic members
JPH08230043A (en) * 1995-02-27 1996-09-10 Aisamu:Kk Welding of synthetic resin material
JPH08230044A (en) * 1995-02-27 1996-09-10 Aisamu:Kk Method and apparatus for welding synthetic resin material
DE19804359A1 (en) * 1997-02-05 1998-08-06 Fluoroware Inc Method and device for connecting thermoplastic pipe pieces
JP2000052431A (en) * 1998-06-03 2000-02-22 Bridgestone Corp Method for joining water-proof sheet and manual infrared welding machine to be used for this joining

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