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case depth     
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  渗层深度
     The paper presents the investigation of microhardness profile,case depth andmicrostructure of the specimen of 38CrMoAl,3Cr2W8V,W6Mo5Cr4V2 and 65Cr4W3Mo2VNbsteels,which were processed by non-pulse nitriding and two types of pulse nitriding at 545℃in the fluidized bed furnace.
     本文研究了38CrMoAl,3Cr2W8V,W6Mo5Cr4V2和65Cr4W3Mo2VNb 钢试样经545℃非脉冲和二种脉冲流态床氮化的渗层硬度曲线、渗层深度和显微组织。
短句来源
     If the case depth of 5CrMnMo steel is between 0. 8 ̄1. 2mm and the surface carbon concentration of it is between 0.8% ̄1.0%, the mechanical properties are the best and very suitable to the cold heading mould.
     其最佳渗层深度0.8~1.2mm、表面碳量应控制在0.8%~1.0%范围,可获得适用于冷镦模具的最佳力学性能。
短句来源
     40Cr structural steel (quenching) is treated with the technology of rare-earth alloying nitridecarboning in 4 hour, and its surface hardness and the case depth can reach HV5Kg and 0.297mm respectively.
     40 Cr结构钢 (调质 ) :稀土合金化氮碳共渗 4h后 ,表面硬度 HV5 Kg70 0 ,渗层深度0 .2 97mm.
短句来源
     According the simultaneous control-figure, we can enact rational carbon potential and carburising time. Baseing on the technology, we can simultaneously assure the surface carbon concentration and case depth of carburising parts.
     根据综合控制图可制定出同时确保表面碳浓度与渗层深度的炉气碳势与渗碳时间,按此碳势与时间控制渗碳后,零件表面碳浓度及渗层深度可同时满足技术要求。
短句来源
     The results showed that the specimen after the simplified pulsenitriding in the fluidized bed furnace produced the case depth approximate to or thinner thanthose of four steels with the non-pulse nitriding in the furnace. But the former process couldremarkably reduce the surface white layer for all four steels,and furthermore,it lowered thefluidized gas consumption,by 86%—90%.
     结果表明:采用简化脉冲的流态床氮化工艺后,渗层深度接近非脉冲流态床氮化或有所减少,试样表面白亮层显著减薄甚至消失,而流化气消耗下降达86%~90%。
短句来源
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  渗碳层深度
     This relationship model can be used to control the case depth and carbon distribution, it may also be used to design the carburizing process factors and control the carburizing automatically.
     论文通过对渗碳工艺的回归分析,建立了渗碳层深度和表面碳浓度与时间和碳势的关系,该关系可作为渗碳层深度和表面碳浓度的综合控制模型,能够用于工艺参数的优化设计和渗碳过程的自动控制。
短句来源
     The Establishment of Simultaneous Control Figure of Case Depth and Surface Carbon Concentration
     渗碳层深度及表面碳浓度综合控制图的建立
短句来源
     A relationship model between the electric, magnetic inductivity and carbon concentration was built. So the relationship between case depth and the characteristics of carburized layer was established. All the results above can afford a theory and practice basis for the NDT ofcarburized layer depth.
     结合渗碳材料的碳浓度和组织状态对电导率和磁导率的影响规律,建立了渗碳材料电导率和磁导率与碳浓度的关系模型,利用该模型及渗碳层深度和碳浓度分布关系的数学模型,建立了渗碳层深度与渗层电磁性能的关系,为实现对渗碳层深度的无损检测提供了可靠的理论与实验基础。
短句来源
     Carburized case depth and carbon concentration distribution model was established in this paper. Numerical simulation of the carbon concentration distribution in the carburized case of the usual carburized materials was designed through Visual Basic programming language.
     建立了不同渗碳条件下渗碳层深度和渗层碳浓度分布模型,通过VisualBasic程序设计语言开发了常用渗碳材料渗层碳浓度分布的数值模拟系统。
短句来源
     The program can provide concentration,case depth and chart of carbon concentration distribution conveniently,rapidly and precisely. Therefore,the program may be very useful to design the carburizing process parameters and control the carburizing automatically.
     该系统可方便、快捷地得到在一定工艺条件下相应渗层碳浓度分布和渗碳层深度,为渗碳工艺参数的优化设计和渗碳过程的自动控制提供了重要的参考价值。
短句来源
更多       
  硬化层深度
     Steels: 20% 20 Cr, 20CrMo, 20CrMnTi were laser heat-treated to study the effects of alloying elements on case depth (width), miscrostructure, hardness distribution of hardened zone.
     本文研究了合金元素对低碳钢(20~#、20Cr,20CrMo、20CrMnTi)激光硬化层深度(宽度)、表层显微组织及硬化层内显微硬度分布的影响。
短句来源
     For diameter 26mm axle bar of CK45 steel,when surface hardness is 54~62HRC,core maximum hardness is 32HRC and case depth is 3 8~5 3mm,it has an optimum combination of strength and ductility. The axle bar will have high ultimate torsion and torsion fatigue life.
     对26m m C K45 钢轴杆,当表面硬度为54 ~62 H R C,硬化层深度为38 ~53 m m ,心部硬度< 32 H R C 时,轴杆具有最佳的强韧性,获得了较高的静扭强度和扭转疲劳寿命
短句来源
     The service condition of oversized bearings was studied. Its machining material allowance and carburization hardened case depth were determined based on the process of heat treatment and the study of deformation.
     研究了特大型轴承的使用状况,从热处理工艺方法、变形方式和变形量的研究来确定机械加工留量、渗碳硬化层深度
短句来源
     On condition that the sprocket′s hardness and effective hardening case depth meets the technical requirements,UCON A quenchant can minimize the PM sprocket′s induction quenching stress,and hence control the quenching crack rate within 1%.
     在链轮硬度与有效硬化层深度达到技术要求的情况下,UCON A型水溶性淬火介质使铁基粉末冶金链轮感应淬火冷却时的应力降到最小,从而把淬火开裂比例控制在1%以内。
短句来源
  层深度
     The paper presents the investigation of microhardness profile,case depth andmicrostructure of the specimen of 38CrMoAl,3Cr2W8V,W6Mo5Cr4V2 and 65Cr4W3Mo2VNbsteels,which were processed by non-pulse nitriding and two types of pulse nitriding at 545℃in the fluidized bed furnace.
     本文研究了38CrMoAl,3Cr2W8V,W6Mo5Cr4V2和65Cr4W3Mo2VNb 钢试样经545℃非脉冲和二种脉冲流态床氮化的渗层硬度曲线、渗层深度和显微组织。
短句来源
     Measurement of The Case Depth for 40Cr Steel Quenched in AQ251 Quenchant
     40Cr钢在AQ251淬火介质中淬硬层深度的测定
短句来源
     If the case depth of 5CrMnMo steel is between 0. 8 ̄1. 2mm and the surface carbon concentration of it is between 0.8% ̄1.0%, the mechanical properties are the best and very suitable to the cold heading mould.
     其最佳渗层深度0.8~1.2mm、表面碳量应控制在0.8%~1.0%范围,可获得适用于冷镦模具的最佳力学性能。
短句来源
     Steels: 20% 20 Cr, 20CrMo, 20CrMnTi were laser heat-treated to study the effects of alloying elements on case depth (width), miscrostructure, hardness distribution of hardened zone.
     本文研究了合金元素对低碳钢(20~#、20Cr,20CrMo、20CrMnTi)激光硬化层深度(宽度)、表层显微组织及硬化层内显微硬度分布的影响。
短句来源
     40Cr structural steel (quenching) is treated with the technology of rare-earth alloying nitridecarboning in 4 hour, and its surface hardness and the case depth can reach HV5Kg and 0.297mm respectively.
     40 Cr结构钢 (调质 ) :稀土合金化氮碳共渗 4h后 ,表面硬度 HV5 Kg70 0 ,渗层深度0 .2 97mm.
短句来源
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  case depth
The theoretically predicted case depth of 3.469 mm matched closely with the experimentally observed value.
      
The influence of SPF conditions on oxidation rates was evaluated in terms of weight gain, α-case depth, and microhardness profile.
      
The combined effect of Mo and Ni is much greater than that of either Mo or Ni alone in increasing case depth.
      
Ni is more effective than Mo in increasing the case depth.
      
It was also revealed that both Mo and Ni increased the case depth.
      
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