1·The microstructure and property of alloy carburizing steel forged parts after general normalizing and isothermal normalizing were studied.
研究了合金渗碳钢锻件的普通正火与等温正火工艺参数对组织、性能的影响。
2·Top low carbon alloy steel as gear material, adapting automatic carburizing and quenching heat treatment.
齿轮材料选用高级低碳合金钢，使用自动化高温渗碳淬火处理。
3·The gear reducer for high strength steel carburizing carburizing hardening low noise transmission.
减速器的轮为高强度渗碳钢，经渗碳淬火处理，传动噪音低。
4·All requirements of high surface hardness and resistance, good toughness and center of all steel products to carburizing.
凡是要求表面具有较高的硬度和耐磨性，而中心具有良好韧性的所有钢制品都要进行渗碳。
5·The effect of deep cooling treatment after carburizing on properties of 20 steel is studied and the effect mechanism of the deep cooling treatment is analyzed.
研究了渗碳后深冷处理对20钢机械性能的影响，分析讨论了深冷处理的作用机理。
6·This paper deals with the surface apparent process of plasma carburizing. The steel 20 and T12 were used.
研究了20钢和T12钢在离子轰击条件下的渗碳和脱碳过程。
7·In view of the shorter service period of spring cartridge, new raw material, carburizing bearing steel and new heat-treatment process was used in manufacture of spring cartridge.
针对弹簧夹头寿命较低现状，提出采用渗碳轴承钢材料及相应的热处理工艺制作弹簧夹头。
8·A concept of critical cooling rate given in this paper for carburizing and post heat treatment of steel.
在解决该问题的过程中，提出了一个临界冷却速度的概念，对钢的渗碳及其后热处理有重要的指导意。