Papers by Keyword: Recovery Process

Abstract: Processing of dump slag steelmaking to extract a metal component should include the stage high-temperature recovery oxide components. The efficiency of the recovery phase depends on both temperature conditions and the composition slag, and introduced additions. The exploration of the possibility and feasibility of the liquid-phase restoration for steelmaking waste slag of the Zlatoust Metallurgical Plant applying the induction heat installation is the aim of this study. Application of induction heating was tested by laboratory research for implementation of the process of the liquid-phase metal restoration from various structure dump slags of the steel-smelting production. The parameters of the reconstruction process corresponding to the maximum extraction of a metal component from the waste slag have been identified. The design of industrial induction plant for liquid slag processing with a separate periodic metal release and a depleted slag melt was developed.

Abstract: According to the limitations of the shooting environment, captured image exist the phenomenon of image blurring and noise. This paper proposes that the improved maximum entropy method recovery blurred image which acquire in aerial. Finally, according to the first order Markoff theory to evaluate the quality of the processed image, the results show that maximum entropy image restoration method compared to the conventional approach increase image clarity and details more better.

Abstract: Zhaohua is a historic town of Sichuan province in China. On May 12th, 2008, a devastating earthquake measuring 8 on Richter scale struck Wenchuan, Sichuan province. In the process of recovery, 9 damaged historic buildings were demolished, 26 historic buildings were regenerated with new materials and 22 new buildings constructed in historic district. The purpose of this report is to study the space change of historic district during the process of recovery, and then attempt to get some lessons from the change of traditional space. We conclude that the emergency management is necessary for the whole environment of the historic district, in order to preserve the traditional space in post-earthquake. In China, although some principles on the conservation of historic districts were in place prior to the earthquake, during the process of recovery the local government did not forcibly ask the people to restore every historic building with original materials, additionally there were no legal consequences. This led to some historic buildings being restored with new materials or demolished, even historic spaces were changed. In Zhaohua, although a conservation plan was in place, mainly this plan focused on the preservation of traditional space and did not include emergency management on how to control the historic space and what should be done during a disaster and post disaster.

Abstract: Recovery processes responsible for evolution of microstructures in 0.1mm thin cold-drawn Ni-Ti shape memory alloy wire heat treated by DC electric pulse were investigated by combination of in-situ tensile stress - strain, electrical resistance and X-ray diffraction measurements. The X-ray data were used to obtain direct experimental information on the evolution of the phase fractions, internal strain and defects in the microstructure evolving through activation of a sequence of recovery processes during the short time electropulse treatment. It is shown that superelastic functional properties of the treated Ni-Ti wire can be precisely set by controlling the progress of the recovery processes by prescribing the time evolution of temperature T(t) and tensile stress s(t) (displacement control) in the treated wire.

Abstract: X-ray diffraction method was applied to measure residual stresses in deformed and annealed polycrystalline austenitic steel. An elastoplastic deformation model was used in analysis of experimental data. As the result, the orientation distribution function of grain stresses, created during elastoplastic deformation was determined and presented in the Euler space. An important decrease of the first and the second order residual stresses was observed during recovery process. It was found that the magnitude of the stresses decreases, while their distribution between different grain orientations remains almost unchanged.

Abstract: In this paper, the characteristics and recovery process of accident vehicle are introduced. By using module of modal analysis and fatigue analysis of ANSYS, the natural frequency and fatigue lifetime are worked out before and after repair accident vehicle, the results of calculation can be used to judge the recovery effect. The paper provides an effective theoretical basis to select logical recovery process for accident vehicle.