漁網用コードの耐摩耗試験

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Fibers for fishing industry have been supplied exclusively with natural substarces such as flax, cotton or silk years back. However, of late, with such a remarkable development in the fabrication of man-made fibers, synthetics have gained their popularity in the industry and are challenging with success to the more conventional types of fiber. Among the various properties any maritime fiber is supposed to have , resistance to abrasion as well as strength is of vital importance. This reporter would like to give some accounts of a newer type of abrasion testing machine for fishing-net cords, which is featured with an elimination of shortcoming involved in an usual measurement method or in a conventional testor. This model yielded very satisfactory results. Of a number of factors that every testor of this nature must necessarily be possessed of, the following points were received a special attention in our effort to build up this testor. 1. An abradant is open to unreproducible change in its surface condition with abrasion. Therefore, in its stead, such a mechanism is used as to permit abrasion between two ends of cords possible. 2. To that extent that frictional strength created by rubbing process is added to original tensile strength by dead-weight, real breaking tensile strength is likely to be all the more bigger. Yet, in reality, tension is valued by the amount of dead-weight charged, with a resulting measuremeet errors being aggravated in an area where dead-weight bears only a minor significance. This structure is featured with a mechanism by which friction force at abrading process will not be added, per se, to the strings tested.
社団法人日本材料学会の論文
1957-12-15

漁網用コードの耐摩耗試験

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