Accurate determination of the position of final solidification point or crater end at ArcelorMittal Dofasco’s No. 2 Continuous Caster (CC) is essential for maximizing both casting speed and equipment utilization. The caster is equipped with one 900-mm long, straight, water-cooled copper mold, and produces 218-mm thick slabs with a maximum width of ~1,600 mm. The casting speed range at the caste...

We define and solve a scheduling problem for operating the continuous steel slab caster which converts molten steel into slabs. The nature of our problem has an interesting connection to a special class of graphs known as interval graphs. We show that our problem can be seen as a variant of the clique partitioning problem defined on interval graphs and develop an optimal algorithm for it.

A two-dimensional heat transfer model for transient simulation and control of a continuous steel slab caster is described. Slab thermal and solidification conditions 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. A solidification model that inc...

Štore Steel Ltd. is one of the major flat spring steel producers in Europe. Until 2016 company used a three-strand continuous casting machine with 6 m radius, when it was replaced by completely new two-strand caster 9 radius. For comparison tensile strength 41 hypoeutectoid grades, we conducted 1847 tests during first period testing using old caster, and 713 second caster. It found that for 11 ...

Th is paper proposes the wheelchair caster unit which assists manual wheelchair users in a step climbing. Th is caster unit has 2 functions. First one is the assistive plate which en larges radius of a front wheel equivalently in the limited space between main frame and foot rest. When the caster meets the step, the assistive plates are rotated as same manner as a general big wheel. Thus, the u...