高速電鋳加工の研究(第2報)
ワット浴の流動電解液による高速電鋳ニッケルに対する応力減少剤添加の効果
1975 年 41 巻 490 号 p. 1038-1042
詳細
1975 年 41 巻 490 号 p. 1038-1042
The purpose of this study is to discuss the effects of stress decreasing agents on high speed electroformed nickel by flowing electrolyte of Watt's solution. 1, 5-naphthalenedisulfonic acid disodium salt and saccharine are used as stress decreasing agents. The obtained results are as follows:
(1) Tensile stress in electroformed nickel is decreased and compressive stress is increased by addition of stress decreasing agents.
(2) In adding 1, 5-naphthalenedisulfonic acid disodium salt, zero stress is obtained in the narrow extent of current density, but in saccharine, that is obtained in the wide extent (from 80 A/dm2 to 120 A/dm2).
(3) The hardness of electroformed nickel is in the extent from 400 to 600 in Vickers hardness in adding stress decreasing agents
(4) Lamellar structure is observed in adding both stress decreasing agents. Electroformed nickel contains sulfur from O. 03% to 0. 06% by weight.
