Description of common copper mould tube problems1. According to the different deformation resistance capacity of the billet crystal device copper tube and the r
Description of common copper mould tube problems
1. According to the different deformation resistance capacity of the billet crystal device copper tube and the round billet crystal device copper tube, so the wall thickness design of the two crystals is also different.General copper pipe wall thickness is designed to be 8%~10% of the nominal size of cast.The strength of billet crystallitube is larger than that of copper tube.To enhance the deformation resistance of the billet crystallicopper tube, it is usually taken as 9%~11% of the nominal size.
2. The conism of the copper mould tube refers to the ratio of the bottom surface diameter of the cone to the height of the cone, and if it is the ratio of the diameter difference between the upper and lower bottom circles and the height of the cone table.It can usually be measured by a taper gauge.
3. The inlet temperature of the crystallizer is usually 25-35.The temperature difference between the water is controlled at 8-10 degrees, and the small pole is at 6-8 degrees.
4. If the steel water vibrates greatly in the crystallier during the column pouring process and the copper mould tube scratches greatly, it is necessary to adjust the stick rod.
shengmiao
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
shengmiao
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
shengmiao
In continuous casting, low corrosion resistance often occurs, which directly leads to uneven composition and will eventually affect the smelting quality. In or