Abstract��Compared to the rolled state, all the parameters of the hot rolling seamless steel pipe changed after quenching and tempering operation, which made the subsequent processing unable to operate normally meet the delivery technical conditions. Track and measure different specifications of the steel pipes in the mill, the results show that, for different dimensions of steel pipe, the dimensional changes with heat treatment process show a different degree of influence. The reasonable control of the rolling tolerance to offset the additional size of the deformation was caused by heat treatment, for rolling the smaller size seamless steel pipe, the wall thickness tolerance were controlled by the negative control, and outside diameter by the center line of the tolerance.For large-diameter thick-walled seamless steel pipe, diameter tolerance should be accorded with the negative control, and the wall thickness by the tolerance control, using this method can effectively guarantee the size parameters of the steel pipe to meet the ultimate standard.
�ŵ��죬������. �ȴ������ֹܳߴ�仯��Ӱ��[J]. �й������ڿ���, 2012, 30(2): 18-20.
ZHANG Dan-tian,YANG Yong-chang. Effect of Heat Treatment on Dimensional Changes of Seamless Steel Pipe. Chinese Journal of Iron and Steel, 2012, 30(2): 18-20.
2012, Vol. 30 
