Using the simulation hot forging of two type lubricant spray model test in actual production conditions, the heat transfer conefficient and the lubricant adhesion were estinated.
用模拟热锻现实生产条件下的两种润滑剂喷射模型试验可以估计传热系数和润滑剂黏附力,最新设计的热减径挤压试验能显示润滑剂条件和摩擦系数的关系及摩擦因素和模具温度的关系,该结果可以在预测模具磨损寿命的CAE系统中实现。
In the paper, by rigid-plasticity finite element software Deform-3D, the hot forging process of the crankshaft is analyzed under different technologic conditions.
基于刚塑性有限元软件Deform-3D,对曲轴在不同工艺条件下的热锻过程进行了对比分析。
Based on the rigid-plastic finite element theory and the viscoplastic model considering dynamic recrystallization, a finite element method is developed to simulate the deformation, temperature variation and microstructure evolution during hot forging.
在热锻过程中,由动态再结晶引起的微观组织演化是决定锻件最终性能的重要因素之一。
On the base of discussing the mechanism and techniques of hot-forging and encapsulating NaI(Tl) crystal,the techniques of hot-forging and encapsulating large-size NaI(Tl) crystal are studied in detail,and good results are obtained.
本文在讨论了NaI(Tl)晶体热锻及封装机理和工艺的基础上 ,对大尺寸NaI(Tl)晶体的热锻及封装的工艺作了详细地研究 ,并成功地制备了各项性能指标优良的大尺寸NaI(Tl)晶体闪烁探测器。
The results reveal that the copper sheets are manufactured by using the technology of hot-forging,and temperature range of hot-forging is 500～700℃.
结果表明,铜片为高温热锻成形,其热锻温度范围在500-700℃之间,符合现代金属学原理。
Research on the stress and strain evolution of aluminum alloy hot forging die;
铝合金热锻模具结构中的应力应变演变过程分析
Simulation analysis on effects of variable physical property parameters of hot forging die materials on die stress;
热锻模材料变物性参数对模具应力影响的模拟分析
Study on improving the hot forging dies service life of 5CrMnMo Steel of boronitriding;
硼氮共渗提高5CrMnMo钢热锻模使用寿命的研究
The effects of w_V/w_C on high-temperature wear property of Cr-Mo-V cast hot-forging die steel were studied.
研究了不同wV/wC对Cr-Mo-V精铸热锻模具钢的高温磨损性能的影响,并探讨了其磨损机理。
Principle of alloying design and optimum range of alloying-design parameters for the cast hot-forging die steel are discussed,and a high wear-resistant cast die steel was developed.
探讨了精铸热锻模具钢合金化设计的依据和合金成分设计较佳的参数范围,开发出高耐磨精铸热锻模具钢,采用MG-2000型销-盘式高温摩擦磨损试验机在干摩擦、400℃条件下,研究了精铸热锻模具钢的高温磨损性能。
To improve and stabilize the service life of hot-forging die fabricated by cast die steel,the failure modes and mechanism were analyzed.
研究结果表明:材质及工艺决定了精铸热锻模具呈现不同的失效形式和寿命。
Application of Hot-forging Die in Precision Casting;
精铸热锻模具的应用研究进展
The application status of precision cast hot-forging dies in the world are summarized.
简述了精铸热锻模具国内外应用状况,对铸造模具钢的研究进展进行了研究。
Aimed at premature invalidation of hot-forging die under multi-forces conditions such as large punching, extrusion and sudden cool or sudden heat hot stress, its main invalidation comes form abrasion and rupture.
针对热锻模在受到较大冲击力、挤压力和急冷急热应力等多种受力条件下,模具出现过早失效,其主要失效形式为磨损和断裂。
A high density material was obtained by hot-forging sintering.
7Cu两种扩散型合金粉末进行了研究,采用热锻烧结法获得了高的烧结密度,并与冷压法进行对比试验。