Control cooling method of resolving self-break while producing high-carbon wire rod
A technology for controlling cooling and wire rod, applied in the field of steel rolling, can solve problems such as surface shrinkage, natural fracture of wire rod, increase natural fracture, etc., to achieve the effect of increasing surface shrinkage, solving natural fracture, and reducing internal stress
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[0015] At present, the rolling mill used by Shougang to produce 82B series wire rods is the third-generation Morgan rolling mill. The specific water cooling distribution after rolling is shown in Figure 1. Before December 2004, when producing large-size 82B wire rod, see Table 1 for water cooling control requirements after rolling.
[0016] When the workers control the water cooling after rolling, the control method of each worker is different, and the water cooling intensity of the 1, 2# and 3# water tanks cannot be reasonably allocated. The situation of the Φ12.5mm specification wire rod produced at that time is shown in Table 2 shown.
[0017] Table 1, process control without additional pre-water cooling and temperature measuring instrument
[0018]
control item
Rolling temperature
finish rolling temperature
Spend
Spinning temperature
Water cooling control
Control requirements
1020-1060
℃
...
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