プラスチックスの溶接 (II) : 熱影響の光学的研究

概要

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In the previous paper, authors described on the advisable conditions of plastic welding. In this paper, authors reported mainly on the heat effects of plastic welding investigated by the optical method and the mechanical test. Polyvinylchloride specimens as recieved and annealed were previously observed by the photoelasticity test in advance to the charpy impact test at the room temperature. The above mentioned tests were also applied to the heat affected zone of welded plastics. According to the results of the experiments, stress relief heat treatment taken place under the suitable period of time and temperature for polyvinylchloride was effective to relief the welding stress and the initial stress. Nevertheless, because of the dissolution in the structure of polyvinylchloride, the stress reliefed specimens have been shown brittlenees.
社団法人溶接学会の論文
1959-07-25