The Introduction of Mould Mould can take from the middle of the molten steel into the required section and shape into a solid billet solidification of continuo
The Introduction of Mould
Mould can take from the middle of the molten steel into the required section and shape into a solid billet solidification of continuous casting equipment shells.Continuous casting machine which is the most critical components,its structure, texture and performance parameters on the quality and slab caster plays 2 decisive role in production capacity.When open pouring dummy bar head mold that is at the end of the activities,of molten steel into the mold gradually condensed into a certain thickness and continuous billet shell out,at this time,mold wall temperature under the static pressure of molten steel and billet shell, such as the relative movement of the friction generated by mechanical stress and thermal stress of the combined effects, the extremely bad working conditions.In order to obtain qualified casting,
mold should be to meet the basic conditions are:(1)has a good thermal conductivity to enable rapid condensation forming molten steel.
(2) good wear resistance to extend the life of mold to reduce the workload of maintenance and replacement of the time mold and improve the operating rate of continuous casting machine.
(3 )have sufficient rigidity,especially in the cold shock-induced heat,large temperature gradient would be required under 2 small deformation.
(4)structure is simple,compact,easy to manufacture,easy disassembly,easy adjustment,cooling water can be connected to in order to facilitate the rapid replacement;self-small,to reduce vibration at the time of mold and reduce the vibration of the inertial force of the drive power devices and a smooth mold vibration.
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Harm of too high temperature: when molten steel out of cooper mold, the billet shell is thin and easy to break out; The accelerated erosion of refractory can ea
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1. The barrier function (mainly completed by the liquid slag layer) isolates the contact between air and molten steel, blocks the secondary oxidation of molten
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In continuous casting, low corrosion resistance often occurs, which directly leads to uneven composition and will eventually affect the smelting quality. In or