Wear Tests of Plastics by an Ultrasonic Vibration Method

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  • 超音波振動法によるプラスチックの微動摩耗
  • チョウオンパ シンドウホウ ニ ヨル プラスチック ノ ビドウ マモウ

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Abstract

A special apparatus was constructed for tests of the wear on plastics, the essential part of which is a metal rod vibrating at a high frequency (18.3 kc). Certain experiments were carried out in the range from 140 to 560 g of the pressure of contact and from 25 to 75 μ of the amplitude of vibration. The amount of wear can be measured at any time of the duration of experiments. Polyethylene, Nylon-6 and Poly-vinyl-chloride were tested. Effects of load, amplitude, irradiation of γ-ray and other factors upon the wear are investigated. Speculation on the mechanism of wear for the results is done with help of the microscopic observation on sliding surfaces.

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