ゴム絶縁電線の連続加硫法の研究-1-

概要

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The present oven curing procedures of the rubber insulaed wires have many working steps. In order to simplify this process the writers have studied on the continuous vulcanizing machine, and reached to the practical use in their works. In this paper the writers report on the leakage stopping apparatus of the high pressure steam for the continuous vulcanization and the abstract is as follows. (1) The leakage stopping apparatus of the high pressure steam : From the theoretical discussion of the labyrinth packing, they decided clearly that one labyrinth packing decreases the pressure of steam. At the entrance part of labyrinth packing. ΔPI=ρ2g (u1-u2)2 At the outlet part ΔPII=ρ2g (u3-u4)2 Where ΔPI : ΔPII : decrease of pressure at the entrance part and at the outlet part. ρ : density of steaitl. g : acceleration of gravity. u1, u2 : Velocity of the steam at the front anc back of the entrance part of labyrinth packing. u3, u4 : velocity of the steam at the front and back of the outlet part of labyrinth packing. (2) As the results of their practical tests, the mechanism using the labyrinth, rubber and water packing is the most suitable for the apparatus of the continious vulcanization.
日本ゴム協会の論文