Analysis and summarization of load distribution method for hot continuous rolling mill

2003 ◽  
Author(s):  
Zhang Jinzhi
Keyword(s):  
Load Distribution ◽  
Rolling Mill ◽  
Continuous Rolling ◽  
Distribution Method ◽  
Hot Continuous Rolling

Influence of Aging Temperature on Microstructure and Creep Properties of Hot Continuous Rolled Ti-6Al-4V Alloy

2012 ◽  
Vol 560-561 ◽  
pp. 943-946
Author(s):  
Li Xiao ◽  
Su Gui Tian ◽  
Xian Yu Bao
Keyword(s):  
Strain Rate ◽  
Aging Temperature ◽  
Creep Property ◽  
Solution Treatment ◽  
Continuous Rolling ◽  
Β Phase ◽  
Industrial Manufacture ◽  
Hot Continuous Rolling ◽  
New Processing ◽  
Lower Temperature

Hot continuous rolling technique is a new processing method for preparing Titanium alloy, which may decrease the production cost and realize continuous industrial manufacture. Ti-6Al-4V alloy was prepared by hot continuous rolling (HCR) and solution and aging treated at different temperature. Creep curves of the alloys were measured, microstructure evolution feature of the alloys during creep was observed by SEM and TEM. The influence of aging temperature on the microstructure and creep property of the alloy is briefly discussed. Results show that, the microstructure of HCR alloy after solution treatment at temperature higher than β phase transus point consists of the fully "basket weave" structure. The alloy aged at 750 °C has higher strain rate and shorter creep lifetime, strain rate of the alloy during steady-state creep is measured to be 0.69 × 10-7/s, creep lifetime is measured to be 180h, and strain rate of the alloy aged at 480 °C is measured to be 0.33 × 10-7/s. The alloy aged at lower temperature has longer creep lifetime than the alloy aged at high temperature.

Study on Adjustment of Large Structure Objects’ Shipment Processing by Trailers

2013 ◽  
Vol 319 ◽  
pp. 409-413
Author(s):  
Jian Min Li
Keyword(s):  
Load Distribution ◽  
Simulation Analysis ◽  
Center Of Gravity ◽  
Large Structure ◽  
Deflection Curve ◽  
Distribution Method ◽  
Surface Contact

Different from the Slippage shipment, when using platform trailers for shipment, the structure’s weight evenly distributed on the small wheel’s axles, because of tire’s deformation, as the trailers continue moving to the barge, the surface contact between the wheels and ground makes the load gradually apply to the barge, then the center of gravity also changes. In this research, based on analysis of the heavy truck’s tire deflection curve, in the process of load distribution, method of calculating the structure’s weight on barge with the trailers gradually move forward can be obtained, through simulation analysis, the load adjustment can be ensured accurately.

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