Hamaker constants representing the intensity of the London-van der Waals force between particles in liquid medium were measured in water for different particle materials such as polystyrene, SiO2 and Al2O3. Agglomeration rates of oxide particles in liquid steel were estimated for various steelmaking vessels having different agitation intensities.
The measure principle, transition electric circuit of the RAM series eddy current type molten steel liquid position control instrument is introduced, it is domestic that make comparison between the eddy current liquid position control device and other mould liquid position control device, and detection in Pangang′s slab caster mould molten steel liquid position and application are introduced too.
By way of mathematics model systemic research the flow actions of steel liquid theblowing AR and in LF,which we can find out the best blowing Ar position and fittingamount of blowing Ar. Through these measures,which can improve the frame of moltensteel container and optimize the flowing state of steel liquid,so we can produce perfecttemperature and ingredient steel liquid for CC process.
This research is useful for analyzing the bulging deformation in the continuous casting of a slab under the static pressure of the molten steel and the thermal loading because of the temperature gradient along the solidified shell thickness.
Study on flow and mixing characteristics of molten steel in RH and RH-KTB refining processes
The maximum value of circulation rate of molten steel in the case of the 30 cm diameters either of the up-and down-snorkels for the RH degasser (the "saturated" rate) is approximately 31 t/min.
Physical modeling of the vacuum circulation refining process of molten steel
Ruhrstahl-Heraeus) refining process of molten steel have briefly been reviewed.
The experimental nitrogen diffusion coefficient in steel over this temperature range was the same as in liquid steel.
A two-dimensional mathematical model has been undertaken to describe coupled liquid steel's turbulent flow and heat transfer with solidification in the crystallizer of inverse casting.
The effects of some main parameters on the solidification behavior have been studied, such as the casting speed, the thickness and the initial temperature of mother sheet, the superheat degree of liquid steel.
By means of an inherent elevated-temperature of poured liquid steel, a Ti-C-30 wt% Fe preform, which was pre-placed in a mould cavity, was directly ignited and a combustion synthesis reaction took place.
Improving the pouring and tapping operation of liquid steel can avoid the contact of liquid steel with air, and decrease re-oxidation.
A PDE problem arising from calculation of the model for continuous casting of steel
This paper deals with the relationship between a certain three-dimensional elliptic problem and a two-dimensional parabolic problem, which arises from numerical calculation in the process of the continuous casting of steel.
Comparison of antibacterial ability of copper and stainless steel
In this paper, the electro-analysis and spectrophotometric analysis methods were used to study the antibacterial ability of copper and stainless steel materials.
coli) and photo-bacteria were used as samples, the antibacterial effect of stainless steel was very weak, while the percentage of bacteria dying from exposure to metallic copper for 30 min was over 90%.