Temperature succession method of whole rolling process simulation analysis of steel rail

The invention discloses a temperature succession method of whole rolling process simulation analysis of a steel rail, relates to the technical field of steel rail rolling production, and provides a succession method capable of succeeding temperature of a rolled piece before model rebuilding to temperature of a rebuilt model. The temperature succession method of the whole rolling process simulation analysis of the steel rail comprises the following steps of A, rebuilding a rolled piece in a stable rolling stage at the previous pass as a first rebuilt rolled piece, B, loading temperature of nodes of the rolled piece in the stable rolling stage to nodes corresponding to an initial blank of the rolled piece, C, replacing X and Y coordinates of the nodes on the initial blank of the rolled piece with X and Y coordinates of the corresponding nodes on an intermediate layer of the rolled piece in the stable rolling stage to generate a transitional rolled piece with a relatively higher temperature, D, performing moving superposition on the first rebuilt rolled piece and the transitional rolled piece and reading node and unit information of the first rebuilt rolled piece to generate a second rebuilt rolled piece, and E, mapping temperature of nodes on the transitional rolled piece to the second rebuilt rolled piece. The method can improve the accuracy of the whole rolling process simulation analysis of the steel rail.