用气体软氮化强化农用柴油机球铁曲轴的研究始于1974年。
Since 1974 the research work on gas soft nitriding of nodular cast iron crankshafts used in agricultural diesel engine has started.
公司的渗氮工艺分为:气体软氮化、 MGN 和气体硬氮化。
The company's nitriding process is divided into:gas soft-nitriding, MGN and gas rigidity-nitriding.
通过含铌与不含铌基体钢气体软氮化工艺对比实验,初步探索了合金元素铌对基体钢软氮化渗层组织与性能的影响。
This paper has investigated the influence of alloying element Nb on structure and properties of the soft nitriding layer by means of experiments of the matrix steels containing Nb and Nbfree.
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