How to judge the due life of mold copper tubeIn order to eliminate or reduce the influence of air gap, the mold cavity should be designed with a certain invert
How to judge the due life of mold copper tube
In order to eliminate or reduce the influence of air gap, the mold cavity should be designed with a certain inverted taper according to the different shrinkage characteristics of steel and thermal deformation degree of copper plate. The inner cavity shape of the mold should greatly adapt to the actual shape of solidified billet in the mold, reduce the void thickness in the whole mold, improve the heat transfer effect of the mold, and ensure the uniformity of the thickness of the billet in the mold and the thickness of the billet at the bottom of the mold. After the use of copper tube, if the inspection span can not restore the mold taper to the standard range required by the steel mill, the life of the copper tube of mold is determined to expire.
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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