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介绍了乙烯裂解炉管的渗碳过程及其危害性。Carburization and its harm to ethylene cracking tubes is introduced.

介绍了铬钼钢的高浓度渗碳试验。The high carbon concentration carburization for Cr-Mo steel was introduced.

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渗碳工艺过程的执行，直接关系到热处理产品的质量。The processing of carburization affects the quality of products in heat treatment directly.

钢铁工业中用于切削工具的淬火处理，作钢材的渗碳剂。For the iron and steel industry in the quenching of cutting tools for the steel of carburization.

结果表明，稀土能降低渗碳的激活能，有利于提高其渗碳速度。The results show that RE can decrease activation energy for carburizing and expedite carburization.

结果表明，渗碳是引起炉管失效的主要因素。The result shows that carburization was the major factors inducing the failure of the furnace tubes.

而工件的渗碳处理是使碳原子渗入钢制工件表层的化学热处理工艺。Carburization is the heat treatment process which carbon atoms permeate into the steel work form its surface.

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汽车同步器齿套在渗碳淬火后，发生变形。Distortion of automobile synchronizer gear sleeves will take place during the course of carburization and quenching.

应用该模型实现了高浓度深层渗碳的计算机实时控制。This model is used to achieve the calculation and actual time control of deep carburization with high concentration.

采用等离子表面合金化技术，在20钢表面渗铬，并进行双辉等离子渗碳，形成高铬高碳合金层。The high chromium and carbon alloying layer on 20 steel surfaces was made by plasma surface alloying and carburization.

过去那种认为高炉生铁含碳量已经达到饱和并与铁水渗碳过程无关的看法是不正确的。It is wrong to think that the content of iron has already been saturated and is not telated to the process of carburization.

螺旋伞齿轮在渗碳淬火时极易发生平面翘曲变形和内孔椭圆化变形。Plane warping deformation and interior hole oval deformation occur easily for spread bevel gear at carburization and hardening.

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在模拟结果的基础上，进一步讨论了渗碳温度对低温两相区渗碳浓度场的影响。On the basis of simulation result, the influence of carburization temperature on the dual phase concentration field was discussed.

针对耐磨构件，尤其是齿轮等机械构件质量低和生产成本高的现状，提出变温低压渗碳新工艺。New technology that altering temperature and low pressure carburization is put forward in allusion to low quality and high cost of gears.

采用合理的渗碳方式、模具矫正方法、淬火等，保证轴承质量。Through reasonable manner of carburization , alignment approach with fixture and quenching method, the quality of bearings could be guaranteed.

利用旋转弯曲疲劳试验方法研究了三种重载齿轮钢渗碳后的疲劳性能。Fatigue properties of three case hardening steels for heavy duty gears after carburization were investigated by means of rotating bending fatigue tests.

针对合金篦条材料表面进行等离子渗碳技术的试验研究和渗层的耐磨性能实验分析。Experimental study of plasma carburization technology and analysis of wear test of carburizing layers are done aimed at alloy bar grate material surface.

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通过观察球光体表面或碳化物的增加的数目在球化处理材料方面，在视力上发现可能的表面渗碳。Possible surface carburization may be detected optically in spheroidized materials by observation of surface pearlite or an increased number of carbide spheroids.

研究了乙烯裂解炉管常用材料的渗碳行为及对其力学性能的影响。In this paper, the carburization behavior and its effects on the mechanical properties of several commercial alloy steels for pyrolysis furnace tubes were studied.

应用质量和动量传输理论，对连铸结晶器内含碳熔渣所引起的超低碳钢钢水增碳的机理进行了研究。Applying the mass and momentum transfer theory, the carburization mechanism of ultra-low-carbon steel melt caused by the carbon containing flux has been investigated.