EEICI Charpy and Izod Impact Testing Unit

7.3.2.1.- 기계적 테스트 14.1.8.- 기계적 테스트
CHARPY AND IZOD IMPACT TESTING UNIT - EEICI

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The Charpy and Izod Impact Testing Unit, "EEICI", is a unit designed for carrying out resilience or impact tests on plastic materials. The resilience test is a type of destructive test that gives us the toughness measure of a material and indirectly its ductility.

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일반적인 설명

The Charpy and Izod Impact Testing Unit, "EEICI", consists of a pendulum supported on bearings with an arm of 330 mm long and a fastening system in the initial position of the test. The suitable hammer either for Charpy or Izod test is screwed to one of its ends.

The Charpy hammer is "C" shaped and is used for impact tests on specimens horizontally supported at both ends and the Izod hammer is used to strike on vertically fixed specimens.

The unit has clamps for each hammer, formed by two supports located in the center of the base to put the specimen, being supported at their two ends in case of the Charpy clamp and fixed and vertical in case of the Izod clamp

The energy employed to break the specimen will be indicated by the displacement of the pointer of a graduated disc.

The test specimens have notches for an easier breakage and are made of PVC, teflon and methacrylate according to the standards:

  • Charpy method: ISO 179.
  • Izod method: ISO 180.

연습 및 가이드

매뉴얼에 포함 된 가이드 실기 연습

  1. Experimental determination of the energy needed in order to break specimens of different materials using the Charpy method.
  2. Experimental determination of the energy necessary to break specimens of different materials using the Izod method.
  3. Experimental determination of the pendulum’s friction losses.

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