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, E1 and F1 are 850 °C, 864 °C and 876 °C, respectively, which all appear at t=3.8 s under the condition of v=0.02 m/s. Compared with the condition of v=0.01 m/s, the heating rates and the cooling... were used in this model, which can move along the top surface of workpiece flexibly. The effect of inductor moving velocity and workpiece radius on temperature field was analyzed and the heating delay......
2010 Abstract: The response and failure of magnesium alloy AZ31 specimens subjected to different pre-loaded-stress levels and heating rates were investigated with a Gleeble-1500 thermo-mechanical material testing system. It is found that the increases of either pre-loaded stresses or heating-rates decrease the failure temperatures of the specimens. The metallographs of the tested specimens......
Annealing behavior of rolled AZ31 alloy sheet PENG Wei-ping(彭伟平), LI Pei-jie(李培杰), ZENG Pan(曾 攀) Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Tsinghua.... The mechanical properties were measured by tensile testing, with their crystal orientations analyzed by X-ray diffraction (XRD). After the annealing treatment, the elongated grains were transformed......
solution should be selected at 0.28?1. 3.3 Influences of heating rate on structure and pigment properties The heating rates are at 0.49, 0.94, 1.07, 1.33, 1.68, and 4.00 ℃/min. The prepared titania.... The influence of some factors (such as F value, volume ratio of pre-adding water to TiOSO4, heating rate and pH of pre-adding water) on the structure and pigment properties of the as-prepared slurry......
specimens subjected to different levels of pre-loaded stresses and heating rates were investigated using a Gleeble-1500 thermal-mechanical material testing system. The metallographs of the tested material... subjected to fast heating histories with different heating-rates. The test results showed distinct differences in both the rupture strength and the metallograph of the material. PENG et al[9......
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不大. 图5 超声频率对PMMA黏弹性生热率的影响 Fig. 5 Viscoelastic heating rates of PMMA at different ultrasonic frequency 图6 不同超声频率下PMMA的黏弹性生热 Fig. 6 viscoelastic heating of PMMA at different...化；广义Maxwell模型；黏弹性生热效应 中图分类号:TQ320.66 文献标志码:A 文章编号:1672-7207(2016)09-2976-08 Viscoelastic heating......
伊朗L.M.I.公司卧式连续退火炉控制系统唐锴1,韩滔1,胡玲艳2(1.辽宁省大连市大连万通工业装备有限公司工程部2.大连大学)摘 要:针对伊朗L.M.I.公司42 m卧式连续退火炉结构特点及退火工艺要求,以西门子S7-400 PLC为核心控制设备,实现球墨铸铁管退火过程的全程自动控制.介绍了退火工艺曲线的设定机理,系统构成和控温系统.该炉在炉长方向上分为加热,保温,急冷和缓冷四个炉段.文章针对不同炉段的控温特性,重点分析了各炉段的控温方式.加热段采取连续燃烧控制方式;急冷段通过间接水冷方式实现铸管的迅速冷却;......
同强度级别要求的TA18管材. 关键词:TA18管材；变形量；退火温度；显微组织；力学性能 中图分类号:TG146.4 文献标志码:A Effects of cold rolling and annealing process on microstructure and properties of TA18 tubes WEI Bei-ling1..., and the effect of annealing temperature on the microstructure and properties of TA18 tubes was studied. The results show that TA18 tubes have good cold working properties, the surface......
