전도성 플라스틱 발열체의 실시간 특성인식이 가능한 지능형 플라스틱 이음관 융착기 개발 (Development of Intelligent Electrofusion Welding Machine with Real-time Recognition of Conductive Plastic Heater Characteristics)

서지정보

· 발행기관 : 대한전기학회
· 수록지 정보 : 전기학회논문지 / 63권 / 8호 / 1098 ~ 1103페이지
· 저자명 : 김대영, 이건영

초록

This study deals with the development of an electrofusion welding machine that is capable of joining plasticpipes using a recently developed electrofusion fitting. This fitting has built-in conductive plastics that are used to weldthe joint together as a heating element. In order to explain the mechanism of the new machine, 1) the resistancecharacteristics of the heating element were explained, 2) the method of electric welding that uses the electrofusion fittingwas described, and 3) the method of power supply based on controlling the firing angle was explained. A control systemfor an intelligent electrofusion welding machine was proposed. This system has the ability to recognize the diameter ofan electrofusion fitting using a lookup-table based on the difference of resistance curves according to fitting types, and itis able to weld the fittings regardless of the ambient temperature. A new algorithm was developed to control the powerof electric welding through the recognition of feature points from the resistance curve of the heating element. In order toevaluate the performance of the developed welding machine, tests involving the welding of 16 mm- and 20 mm-typefittings were carried out. Examining the welding results, we concluded that the proposed welding machine will offer highproductivity and reliability in the field of electrofusion welding.

영어초록

This study deals with the development of an electrofusion welding machine that is capable of joining plasticpipes using a recently developed electrofusion fitting. This fitting has built-in conductive plastics that are used to weldthe joint together as a heating element. In order to explain the mechanism of the new machine, 1) the resistancecharacteristics of the heating element were explained, 2) the method of electric welding that uses the electrofusion fittingwas described, and 3) the method of power supply based on controlling the firing angle was explained. A control systemfor an intelligent electrofusion welding machine was proposed. This system has the ability to recognize the diameter ofan electrofusion fitting using a lookup-table based on the difference of resistance curves according to fitting types, and itis able to weld the fittings regardless of the ambient temperature. A new algorithm was developed to control the powerof electric welding through the recognition of feature points from the resistance curve of the heating element. In order toevaluate the performance of the developed welding machine, tests involving the welding of 16 mm- and 20 mm-typefittings were carried out. Examining the welding results, we concluded that the proposed welding machine will offer highproductivity and reliability in the field of electrofusion welding.

참고자료

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