The Initial Solidified Point(ISP)temperature fluctuation during continuous casting caused by mold reciprocation was measured by a newly developed method.The repeated experiments results show that the ISP temperature varied periodically along with mold oscillation.A one-dimension heat transfer mathematic model shows that when there was a temperature fluctuation in the inner mould wall,there were corresponding temperature fluctuations at every point in the molten steel,whose frequency is the same as the bound...