一般說来,铸钢轧辊都采用下注和切线进入的内浇口。这样钢水在型内上升时比较平稳,从浇注开始到終了,不致于使型壁冲砂。由于内浇口是切线进入,鋼水在型内旋轉上升,因而比重輕的砂、灰和其他脏物,在旋轉离心力的作用下,排集在中心浮入冒口,这样可以得到沒有砂眼,夹灰等缺陷的轧辊表面。但下注洁有这样的缺点:本来铸件的凝固是越靠近冒口温度越高才合理,但使用下注法冒口中的钢水温度就比下部钢水 In general, the cast steel rolls use gating and tangential ingress. This molten steel rises more smoothly in the type, from the beginning of the pouring to the end, will not make the wall flushing. As the gate is tangential to enter, the steel rotation in the type of rise, and thus the proportion of light sand, ash and other dirt, under the action of rotating centrifugal force, set in the center of floating in the riser, so you can get no trachoma, Cladding gray defects such as roller surface. However, there is such a disadvantage in betting: Originally cast solidification was closer to the riser temperature is reasonable, but the use of betting riser in the molten steel temperature than the lower part of the molten steel