Abstract: The chemical compositions,phase structures and microstructures of cold molten salt are studied. It is found that the molten salt system exists in complexus of TiO2,SiO2,chloride molten salt,calcium oxides and iron oxides. Molten salt system agglomerates under cold condition with uneven appearance an...
Abstract: Theoretical thermodynamic data of TiC0.5O0.5 production by carbon thermal reduction were calculated by thermodynamic software combined with the latest technology research progresses. The processes of TiO2 reduction with graphite,carbon black,and petroleum coke were tested by DSC-TG,and titanium solu...
Abstract: The process of extracting vanadium from molten vanadium slag was simulated. After vanadium slag was heated to the molten state,CaO was charged and oxygen was blown into the slag,by which vanadium in the slag was oxidized into quadrivalent or pentavalent state and calcium vanadate was obtained.Then a...
Abstract: Taking TiOCl2 solution prepared by hydration of TiCl4 as raw material,crystalline TiO2powder was prepared by pyrohydrolysis of self-generating seed crystal under a pressure of 1 atm. With Ti4+ concentration in the initial TiOCl2 solution of 0.5 mol/L,after reaction at 106℃ for 120 min,the product ob...
Abstract: Taking tetra-n-butyl titanate as precursor and ammonium nitrate and ammonium tungstate as codoping sources,nanoscale W,N codoped TiO2 powder is directly prepared by low-temperature sol process. The samples are characterized by XRD,SEM,IR,XPS,and GTA. The results show that the spherical codoped photo...
Abstract: The process of direct reduction of iron from vanadium extraction tailings by directly adding carbon was investigated. The effect of C/O ratio and reduction temperature and time on direct reduction of iron was analyzed by X-ray diffraction and scanning electron microscopy etc. The result shows that w...
Abstract: In this article,based on analysis on properties of blast furnace dusts in Tangshan,a process for comprehensive recycling of blast furnace dusts is put forward and validated through a range of tests.The results show that in the process,blast furnace dusts including Fe and C can be effectively recycle...
Abstract: Cleanliness of IF steel during casting process was systematically investigated. The research on T[O]in RH-tundish-slab shows that from tundish to slab,average contents of T[O]decrease from 31× 10-6 to 20 × 10-6while average contents of nitrogen increase from 16.5 × 10-6 to 19.6 × 10-6. The analysis ...
Abstract: Fe2O3 is a kind of pulverized coal combustion improver suitable for blast furnace. TG-DSC analysis is employed to study the combustion mechanism,and the result shows that FeCO-R weakens bridged bond of carbon structural units and changes crystal structures,resulting in lowered activation energy of t...
Abstract: In view of erosion of furnace hearth and bottom and increase of water temperature difference of cooling wall,titanium-containing sinter instead of titanium ore is used for furnace protection. Through calculation of titanium balance in the blast furnace,titanium content in hot metal in the furnace is...
Abstract: Due to the extremely strict requirements on the control of [S],[N],[O] and [Ti] content in molten steel,tire cord steel is a kind of wire rods difficult to be produced. Pangang Vanadium Recovery and Steelmaking plant steelmake using hot metal with containing [V]and [Ti],the hot metal heat source is ...
Abstract: Temperature distributions on CSP mold copper plate of a certain steel mill are measured by a mold temperature monitoring software. A two-dimension model for mold heat flux distributions is built on the basis of casting parameters including real-time copper temperature,original temperature of cooling...
Abstract: In order to satisfy the requirement of blast furnace on longevous cooling stave,the temperature and stress field of the newly designed cast iron cooling stave of taphole are calculated by using the ABAQUS. The results show that the maximum temperature of hot surface is 85.22℃ which leads to small de...
Abstract: Erosive wear resistance of precipitation hardening steel 0Cr17Ni7Al was investigated via self-made solid-liquid two-phase-flow erosive wear tester,and the effect of heat treatment on the erosive wear resistance of the steel was studied. Furthermore,through comparison with H13 steel which has the sim...
Abstract: Ultrahigh-strength strapping steel is used for packing paper,tobacco and compressed cotton and wool. At present,there is only one company that can produce it through lead quenching. In this paper,the feasibility to produce a kind of ultrahigh-strength strapping steel with tensional strength of1 350 ...
Abstract: Microalloying of steels refers to adding a small amount of microalloying elements into steels,which can significantly enhance the mechanical properties of steels. In this paper,the research object is medium-carbon microalloyed steel containing vanadium. After aging treatment at 900℃,and isothermal t...
Abstract: Composition design and process control of Ti-IF steel by CSP process is introduced in this article,and through simulation of batch annealing in laboratory,the effect of annealing process on texture,microstructure and properties is researched. The textures and microstructures of Ti-IF steel treated w...
Abstract: The causes of delayed cracks forming in 80 mm-thick abrasion-resistant steel plates NM400 after cutting were investigated by analyzing macrostructures and microstructures of the plates,and countermeasures to avoid such kind of cracks were considered. The result shows that there are several center co...
Abstract: Fe-Al intermetallic matrix composite coating was prepared on the surface of steel C45 by hotdip aluminizing,then the sample was processed at different diffusion annealing temperature. The structures and chemical compositions of the coating were analyzed by XRD and SEM etc. The effect of diffusion an...
Abstract: In this article we review some of the advances made in Vanadium microalloying technology for flat products published over the past 10 years and discuss their application to Advanced High Strength Steels(AHSS) for the automotive sector. The potential benefits to a range of steel grades including Dual...
