...This is called soft nitriding, and examples include the Tufftride method developed in West Germany. Recently, due to the problem of wastewater pollution caused by cyanide and other substances, gas soft nitriding, in which processing is performed in an atmosphere containing a mixture of carburizing gas and ammonia gas, is widely used. In addition, ion nitriding (using glow discharge, nitriding is performed by charging nitrogen and hydrogen gas in a fixed ratio) is also used, which compensates for the shortcomings of gas nitriding, such as the long processing time and the brittleness of the nitrided layer. *Some of the terminology used in relation to the "gas soft nitriding method" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは軟窒化法といわれ,西ドイツで開発されたタフトライド法などがある。 最近では,シアンなどの廃水公害問題があるため,浸炭性ガスとアンモニアガスの混合雰囲気中で処理するガス軟窒化法が多く行われている。さらに,処理時間が長い,窒化層がもろいなどのガス窒化の欠点を補ったイオン窒化法(グロー放電を利用し,ある決まった割合の窒素と水素ガスを装入して窒化する)なども行われている。… ※「ガス軟窒化法」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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