A transient simulation and dynamic spray cooling control model for continuous steel casting

From: Metallurgical and Materials Transactions | Date: June 1, 2003| Author: | Copyright information

A two-dimensional heat-transfer model for transient simulation and control of a continuous steel slab caster is presented. Slab temperature and solidification are computed by the model as a function of time-varying casting speed, secondary spray cooling water flow rates and temperature, slab thickness, steel chemistry, and pouring and ambient temperatures. Typically, the solidification path, temperature-solid fraction relationship, is prescribed. However, if these data are not available, a microsegregation solidification model that approximates the effects of steel chemistry and cooling rate ...

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Effects of Alloy Composition and Casting Speed on Structure Formation and Hot Tearing during Direct-Chill Casting of Al-Cu Alloys
; Effects of casting speed and alloy composition on structure...billet, is strongly affected by the casting speed and alloy composition, while the...spacing is mostly dependent on the casting speed. The hot cracking pattern reveals...
The importance of viscoplastic strain rate in the formation of center cracks during the start-up phase of direct-chill cast aluminum extrusion ingots
; ...cast ingots due to different initial casting speed histories may best be explained by...process parameters. Increasing the casting speed, for example, increases the hot tearing...process parameters. In addition to the casting speed,[7] parameters such as grain refinement...
Cryogen improves patient comfort for treatment of port wine stains
; ...faster clearing NEW YORK -- Cryogen spray cooling decreases the epidermal side effects...or the laser combined with cryogen spray cooling, the addition of cooling resulted in...protection of the epidermis with cryogen spray cooling could reduce these responses. The study...
Scale Rules for Macrosegregation during Direct-Chill Casting of Aluminum Alloys
; ...parameters, i.e., billet diameter and casting speed. It seems that there is always a range...were performed at different ratios of casting speed and billet diameter. The macrosegregation...that the size of the casting and the casting speed are the main parameters that determine...
Here's how spray cooling works.(for electronic equipment)
; ...electronic devices get hot, and that spray cooling can calm them down. But just how does...work? Understanding the physics of spray cooling will be essential as work goes on to...square centimeter, engineers rely on spray cooling, a high-flux, heat-removal technique...
Numerical investigation of the interface in a continuous steel casting mold water model
; ...reported. It is shown that a critical casting speed exists that leads to wave instability...plane surface. However, increasing the casting speed, wave phenomena of considerable height...slag interface and after a critical casting speed emulsification takes place; only a...
Effect of Grain Refinement on Structure Evolution, "Floating" Grains, and Centerline Macrosegregation in Direct-Chill Cast AA2024 Alloy Billets
; ...effects of grain refining (GR) and casting speed on structure, "floating" grains, and...change much with the cooling rate, casting speed, and grain refiner amount. Coarse-DAS...influence of GR, while the effect of casting speed is large. The concept of solute-depleted...
Cincinnati expands portfolio.(Pipes & Profiles)
; ...Vakon, Sprayon and Tracton, the range consists of vacuum and spray cooling baths as well as pipe haul-offs. Available in 6 m and 9 m...automatic water level control and temperature gauge. The spray cooling tanks, which are placed next to vacuum tanks in pipe extrusion...
Rapid-pulse Er:YAG mimics CO(2) collagen coagulation
; ...reported. The procedure also added cryogen spray cooling (CSC), which allows for epidermal preservation...laser pulses with and without cryogen spray cooling. Dr. Majaron had earlier demonstrated...were used, said Dr. Kelly, and cryogen spray cooling was added. "When you deliver ...
Roof cooling still a viable, low-cost cooling method.
; ...sprayheads designed specifically for roof spray cooling has permitted roof cooling to become...Despite the increasing acceptance of roof spray cooling systems, however, the proper use and...of the conditions under which roof spray cooling systems can be most effective can lead...