快削性1%けい素鉄

概要

論文の詳細を見る
Developing free-machining magnetic pure iron we have been investigating various characteristics of said iron. We also tried dispersion addition of small amount lead to 1% silicon-iron which is known as similar magnetic material. Through characteristic investigation of drawing bar having various working ratio we could confirm that there were results that improved machinability without damaging original magnetic property.Annealing temperature should be higher than that of pure iron and 900°C is most recommendable. Hardness and tensile strength were found to be considerably high comparing with pure iron. Influence to machining resistance due to drawing ratio was recognized very little. Beside this, characteristics similar to those of pure iron were confirmed as change of magnetic property due to drawing processing, that is to say, “about 10% working” was helpful for improvement of magnetic property after annealing.
大同特殊鋼株式会社の論文