Influence of copper mould tube material and thickness on crystallizer heat transfer1) Material:The maximum temperature of the hot surface of the copper mould t
Influence of copper mould tube material and thickness on crystallizer heat transfer
1) Material:
The maximum temperature of the hot surface of the copper mould tube of different materials will obviously increase with the decrease of the thermal conductivity of the material.
Considering the influence of the thermal deformation of the crystallizer on its working life and the quality of the cast billet, in the selection of the material of the copper mould tube, special attention must be paid to the recrystallization temperature of the crystallize being higher than the maximum temperature of the hot surface;
2) Thickness:
In the change of the thickness of the copper mould tube, the temperature distribution of the crystallizer does not change significantly. It can be determined that the thickness of the copper mould tube of the crystallizer has little effect on its heat transfer effect within a certain range.
In the selection of copper mould tube wall thickness, its effect on heat transfer is not the main aspect to consider. The wall thickness of the copper mould tube mainly determines the rigidity of the crystallizer during installation and use and the resistance to cooling water pressure without deformation. At the same time, the repair times and life of the crystallizer should also be considered.
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