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渗碳齿轮     
相关语句
  carburized gear
     Analysis of the Longitudinal Cracking on Carburized Gear Shaft Made of 18Cr2Ni4WA Steel
     18Cr2Ni4WA钢制渗碳齿轮轴纵裂原因分析
短句来源
     The Control of Effective Case Depth for Carburized Gear of 20CrMnMo Steel
     20CrMnMo钢渗碳齿轮有效硬化深度的控制
短句来源
     The Analysis of the Stress of Carburized Gear Contact Fatigue
     渗碳齿轮接触疲劳应力分析
短句来源
     Effect of Heat Treatment on Mechanical Properties of Cr-Ni-Mo Carburized Gear Steel
     热处理对Cr-Ni-Mo系渗碳齿轮钢机械性能的影响
短句来源
     Study on the Control of Internal Oxidation in carburized Gear
     渗碳齿轮内氧化控制技术的研究
短句来源
更多       
  carburizing gear
     COMPOSITION DESIGN OF AUTOMOBILE CARBURIZING GEAR STEEL
     汽车渗碳齿轮钢的成分设计
     A Study of Fracture Bchaviour of the Hardened Layers of Carburizing Gear Steels
     渗碳齿轮钢硬化层断裂性能研究
短句来源
     Development and application of high strength automotive carburizing gear steels
     高强度汽车渗碳齿轮钢的发展及应用
短句来源
     The present paper analyzes the development and application of the high strength automotive carburizing gear steels and foresees the trend of development of the steels in view of the characteristics of the alloy materials in our Country.
     分析了高强度汽车渗碳齿轮钢在国内外的发展及应用现状,并根据我国合金材料的特点展望了其发展趋势。
短句来源
     Heat Treatment Distortion of Heavy Carburizing Gear Ring and Its Control
     大型渗碳齿轮圈热处理畸变与控制
短句来源
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  carburized gears
     Influence of Shot Peening Strengthening on Structure and Properties of 25MoCr5 Steel Carburized Gears
     喷丸强化对25MoCr5钢渗碳齿轮组织及性能的影响
短句来源
     Technological measures of controlling grinding fracture on carburized gears
     控制渗碳齿轮磨齿裂纹的工艺措施
短句来源
     In this paper the computative method of the teeth contact stress of carburized gears is described and the mechanism of forming fatigue crack analysed.
     本文探讨了渗碳齿轮接触应力的计算方法,分析了试件接触疲劳裂纹的产生机理。
短句来源
     Control and Correction Ways of Distortion for Carburized Gears
     渗碳齿轮畸变控制与修正措施
短句来源
     The results show that these carburized gears by using BH energizing reagent get finer microstructure,lower heat distortion,deeper carburizing layer,better carbide distribution morphology and hardness gradient in carburizing layer.
     实验结果表明使用BH催渗剂后的渗碳齿轮轮齿组织得到细化,热畸变减小,渗碳层深度增加,渗碳层碳化物分布形态得到改善,渗碳层硬度梯度趋于平缓.
短句来源
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  carburizing gears
     Analysis and Prevention of Fracture in Carburizing Gears
     拖拉机渗碳齿轮断裂分析及预防
短句来源
     Design of the Case Strength for Carburizing Gears
     渗碳齿轮硬化层的强度设计
短句来源
     Due to the good rolling contact fatigue strength, bending fatigne streugth and wear resistance of carburizing gears, they have higher loading capacity and service life, so the steels for gears are stressed in most nations to develop carburizing steels.
     由于渗碳齿轮有较高的接触疲劳强度、弯曲疲劳强度和耐磨性,承载能力和寿命较高,故各国的齿轮用钢均着重发展渗碳钢。
短句来源
     Applied in practice, this new technique has achieved good effects of quality-improving of carburizing gears, reproducability and energy-saving.
     这种新技术已应用于生产,取得提高渗碳齿轮质量,重现性好和显著节能的效果。
短句来源
     Paper searches on the effective hardening layer of carburizing gears
     关于渗碳齿轮有效硬化层的探讨
短句来源
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  carburized gear
Complex alloy steel for heavily loaded carburized gear wheels
      
The implications of this study on laboratory analyses of the bending fatigue performance of carburized gear steels are discussed.
      
Also, the Carburized gear had the abnormal surface structure, such as Intergranular Oxidation and Imperfect Hardening structure.
      
In the Carburized gear, the hardness from the surface to 0.1mm in depth was 674-696HV, and the effective hardening case was 0.39mm deep.
      
In other words, extremely smaller Austenitic grain size of CIH gear than that of the Carburized gear.
      
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  carburized gears
An analytical approach for establishing case depth requirements in carburized gears
      
An analytical approach for determining case depth requirements in carburized gears is presented.
      
In accelerated fatigue tests in an automobile, the performance of the plasma carburized gears equalled that of gears that had been carburized in the conventional way.
      
Decreasing the allowance in tooth grinding of carburized gears for heavily loaded reducers
      
To increase the strength and working life of quenched carburized gears of steel 20KhNM it is recommended that they be reheated by high-frequency current and quenched in a high-speed oil spray.
      
  其他


Cracks appearing during grinding on gears made of alloy -steel such as 18CrNi-WA, 12CrNi3A and 20CrMnTi are studied. Proper heat-treatment and grinding process can be chosen to improve grinding conditions and to prevent or avoid crack formation.

本文对18 CrNiWA、12CrNi3A、20CrMnTi等渗碳齿轮在磨削时产生裂纹的原因进行了探讨.进而选择适当的热处理工艺和磨削规范,改善磨削条件,就可以防止和消除磨裂,提高生产率.

The large heavy-duty gears realize a change from soft surface to hardening surface in our country. In order to evaluate the properties of deep carburized materials correctly and to provide the basis of the selection and heat treatment. The urgent work is to investigate the method of contact fatigue test. This paper discussed the problem of test equipment, shape of specimen and data etc, so as to find a reasonable and rigorous experimental method.

国内大型重载齿轮正在实现由软齿面向硬齿面的过渡。为了能对深层渗碳齿轮材料的接触疲劳性能进行正确的评价,为选材和制定热处理工艺提供依据,进行深层渗碳材料的接触疲劳试验方法的探讨是一个急待开展的工作。本文从试验设备、试样形状以及数据处理等方面进行研究,讨论如何确定合理而严格的试验方法。

The authors introduced some technical problems in the heat treatment of gears carburizing at first,then discussed the designing principles in carburizing technique of gears.In author's opinion,the carburization of common gears is a mix-controlling process and in order to speed it,in the early stage the reac- tive rate in phase boundary should be increased,at the medium and the final stage the diffusion flux of carbon in austenite should be enlarged.The paper also told how to determine the surface carbon content(C_S)of...

The authors introduced some technical problems in the heat treatment of gears carburizing at first,then discussed the designing principles in carburizing technique of gears.In author's opinion,the carburization of common gears is a mix-controlling process and in order to speed it,in the early stage the reac- tive rate in phase boundary should be increased,at the medium and the final stage the diffusion flux of carbon in austenite should be enlarged.The paper also told how to determine the surface carbon content(C_S)of parts after carburizing by the surface hardness and other property requirements.Based on the C_S and case depth,considering non-equilibrium carbttrization and the con- trolling parameter of chemical composition selection of steel.Finally,inve- stigated the principle for determining the process parameters of the two-step carburization and its effect on the result of the carburization.Recommended some steps for diminishing distortion of gear carburizing,such as medium tem- perature carburizing,pre-cool within the furnace,marquenching in the hot oil- air,controlling case depth and the microstrueture et al.

本文首先介绍了渗碳齿轮热处理中存在的技术问题,而后针对这些技术问题讨论了齿轮渗碳工艺的设计原则。作者认为常用齿轮渗碳是一个混合控制过程。为了强化渗碳过程,渗碳初期要增大相界面渗碳反应速度;中、后期应提高碳在奥氏体中扩散通量。文中还介绍了如何根据表面硬度和其它性能要求,确定渗碳后表面碳含量 C_S;根据 C_S 和渗层厚度,考虑到非平衡渗碳和钢的化学成分选择气氛的控制参数;讨论了变碳势渗碳工艺参数的确定原则及其对渗碳结果的影响。提出了中温渗碳、炉内预冷和热油—空气分级淬火及控制渗层厚度和显微组织等措施以减少齿轮热处理变形。

 
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