A Grading Controlled Cooling System for Bar Finish Rolling
A cold system and finishing rolling technology, applied in metal rolling, temperature control, metal rolling, etc., can solve problems such as space waste, and achieve the effect of avoiding abnormal structure, good rolling line adaptability, and small equipment investment
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Embodiment 1
[0026] Such as figure 2 As shown, the finished frame of Φ14mm spring steel bar is a reducing and sizing unit, and the empty looper between 2# flying shear and 13# rolling mill is replaced with a controllable cooling water guide groove to realize controlled cooling before finishing rolling; The empty looper between the 17# rolling mill and the 18# rolling mill is a water-through guide groove with controllable cooling. At the same time, the post-rolling guide tubes after all the finishing mills are replaced with controllable cooling post-rolling guide tubes to realize the controlled cooling in the finishing rolling; in 18 #The first set of cooling water tanks is installed between the rolling mill and the reducing and sizing unit to realize controlled cooling before final rolling; the second set of cooling water tanks is installed between the reducing and sizing unit and 3# flying shear to realize controlled cooling after rolling. Finally, the entrance temperature of finish roll...
Embodiment 2
[0030] Such as image 3 As shown, the finished frame of Φ22mm spring steel bars is the 18# rolling mill, and the empty looper between the 2# flying shear and the 13# rolling mill is replaced with a controllable cooling water guide groove to realize controlled cooling before finishing rolling; The post-rolling conduit behind the #~17# rolling mill is a controllable cooling post-rolling conduit, which realizes the controlled cooling in the finishing rolling; replaces the empty looper between the 17# rolling mill and the 18# rolling mill with a controllable cooling water-through guide groove to realize Controlled cooling before the final rolling; replace the empty looper before the reducing and sizing group as a water-through guide groove with controllable cooling, set the first group of cooling water tanks between the 18# rolling mill and the reducing and sizing group, A second group of cooling water tanks is set between 3# flying shears to realize controlled cooling after rolli...
Embodiment 3
[0034] Such as Figure 4 As shown, the finished frame of Φ28mm spring steel bars is the 14# rolling mill, and the empty looper between the 2# flying shear and the 13# rolling mill is replaced with a controllable cooling water guide groove to realize controlled cooling before finishing rolling; #The post-rolling conduit behind the rolling mill is a controllable cooling post-rolling conduit, which realizes controlled cooling in the finishing rolling; replaces the empty looper between the 14#~18# rolling mills with a controllable cooling water-through guide groove, between the 18# rolling mill and The first group of cooling water tanks is set between the reducing and sizing units, and the second group of cooling water tanks is installed between the reducing and sizing units and 3# flying shears to realize controlled cooling after rolling. Finally, the entrance temperature of finish rolling can be reduced to 1000°C, the temperature of finish rolling can be reduced to 980°C, the te...
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