TY - JOUR
AU1 - Stal'skii, A.
AU2 - Zheltonozhskii, N.
AB - With the help of the Nairi-2 computer we made a correlation analysis of the experimental data and ob- tained regression Eqs. (1)-(3) describing the relationship of the reductions s and ran to the average amount of maximum roll wear along the generatrix of the entry cone and the quantity of tubes with internal seams to em (Fig. 3) : ec----0.57 X + 15:8; (D em-~0.84 X + 4.45; (2) Bs - 1.67.10 -a Xa--2.29 9 10 -2 X 2 + 0.136X-- 0.08. (3) The correlation coefficients have values of 0.87 and 0.91, respectively, and the correlation ratio is 0.63. As the results of an analysis of these relationships show (Fig. 2), the reduction in front of the tip of the man- drel increases more rapidly than at the contraction. This is related to the fact that with an increase in roll wear for one and the same size of shell the piercing mill is adjusted by bringing the rolls closer and by de- creasing the advance of the mandrel tip beyond the contraction. With a maximum roll wear in the entry cone of 6-7 mm the reduction in front of the mandrel tip is 9.5-10.5%. Subsequent use of the 
TI - Repair of rolling mill rolls
JF - Metallurgist
DO - 10.1007/BF01084433
DA - 2005-01-17
UR - https://www.deepdyve.com/lp/springer-journals/repair-of-rolling-mill-rolls-y29qh4FbTC
SP - 120
EP - 122
VL - 21
IS - 2
DP - DeepDyve
ER -