...Liquid carburizing has a low processing temperature and a short processing time, so there is little distortion in the product, but since cyanide salts are used as the carburizing agent, care must be taken in managing them. (3) Gas carburizing: Carburizing gases such as methane CH4 , propane C3H8 , and butane C4H10 are mixed with air and heated to over 1100°C in a converter, where nickel is used as a catalyst to change the gas into a mixed gas (carrier gas) whose main components are carbon monoxide, hydrogen, and nitrogen. The composition of this mixed gas is adjusted and sent into a carburizing furnace containing the workpiece, where carburizing is carried out. ... *Some of the terminology that refers to "gas carburizing" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…液体浸炭法は処理温度が低く,処理時間も短いので製品のひずみは少ないが,浸炭剤としてシアン化塩を使用するのでその管理等に注意を要する。(3)気体(ガス)浸炭法gas carburizing メタンCH4,プロパンC3H8,ブタンC4H10などの浸炭性ガスに空気を混合し,約1100℃以上に加熱した変成炉中で,ニッケルを触媒として一酸化炭素,水素,窒素を主成分とする混合ガス(キャリアガス)に変化させる。この混合ガスを成分調整して被処理物を入れた浸炭炉の中に送入し,浸炭を行う。… ※「gas carburizing」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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