서지주요정보
Resin transfer molding에 의한 복합재료 스크류로터의 제작 = The manufacturing of the composite screw rotors by resin transfer molding
서명 / 저자 Resin transfer molding에 의한 복합재료 스크류로터의 제작 = The manufacturing of the composite screw rotors by resin transfer molding / 김영구.
저자명 김영구 ; Kim, Young-Goo
발행사항 [대전 : 한국과학기술원, 1994].
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소장정보

등록번호

8004539

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 94008

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A screw-type pump having at least two rotors which are composed of a male and female rotors with helically extending lands and grooves is increasingly used in industrial cooling plants, heat pumps and turbo chargers because it has a smaller weight to power ratio and produces less noise and vibration compared to conventional reciprocating pumps. Moreover, the capacity of a screw type pump can be varied continuously from 10% to 100% by the position control of the sliding valve. Most male and female rotors of the screw type pump have been manufactured by machining. The manufacturing time is long because the amount of material cut-away is considerable and the manufacturing cost is high because the screw rotors have a complicated shape and require high degree of accuracy in machining. Therefore, there are many attempts to manufacture the screw rotors with plastics and ceramics using different manufacturing methods such as injection molding and casting. Since the lands of rotors manufactured with polymer composite materials have resilient deflecting characteristics when clashed with other rotors, in this thesis, the composite screw rotor was manufactured with chopped carbon fiber reinforced epoxy composite materials by resin transfer molding. In order to make the demolding of the screw easy, the mold for the screw rotor was manufactured with the high strength carbon fiber epoxy composite material whose coefficient of thermal expansion is very low. The surface of the mold was coated with the fine grade gelcoat to make the surface of the mold very smooth. The interfacial strength between the screw and the aluminum core shaft was tested with respect to the surface knurling size of the aluminum core shaft and the surface treatment. Also, the tensile modulus, flexural strength and coefficient of thermal expansion were tested. Using the tested data, the optimal composite screw rotors were manufactured by resin transfer molding.

서지기타정보

서지기타정보
청구기호 {MPE 94008
형태사항 viii, 58 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Young-Goo Kim
지도교수의 한글표기 : 김대길
지도교수의 영문표기 : Dai-Gil Kim
학위논문 학위논문(석사) - 한국과학기술원 : 정밀공학과,
서지주기 참고문헌 : p. 25-27
주제 Plastics --Modeling.
Fibrous composites.
Expansion (Heat)
스크류. --과학기술용어시소러스
복합 재료. --과학기술용어시소러스
펌프. --과학기술용어시소러스
세라믹 성형. --과학기술용어시소러스
조형. --과학기술용어시소러스
Screw pump.
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