Method and apparatus for testing the quality of cast iron pieces

Details Method and apparatus for testing the quality of cast iron pieces Method and apparatus for testing the quality of cast iron pieces

1976-11-11

1978-10-31

Queisser, Richard C.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

G01H 1300

Patent

active

041227239

ABSTRACT:
Spheroidal cast iron pieces are tested by clamping each individual piece on a vibratory test rig together with a reference datum piece and using the measured amplitude and frequency of the system at resonance to derive an automatic indication, through an electronic logic circuit, of the quality of the piece under test compared with the reference piece.

REFERENCES:
patent: 3043132 (1962-07-01), Schubring
patent: 3284192 (1966-11-01), Larson et al.
patent: 3481185 (1969-12-01), Ittner

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