Welded flange hot-rolling technique
A flange and process technology, applied in the field of flat welding flange hot coil process, can solve the problems of increased manufacturing cost and workload, unequal thickness of inner and outer diameters, increased operating procedures, etc., to overcome waste of raw materials and accurate geometric dimensions , to avoid the effect of breaking
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[0030] Example 1: see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5-1 , Figure 5-2 , The number 1a in the figure is the strip hot-rolled flat steel plate, 1b is the round steel ring after hot coiling, 2 is the generatrix cutting line of the spiral multi-layer round steel ring, 3 is a specific type of cylindrical mold, 4 is After cutting, 5 is the weld.
[0031] A flat welding flange hot coiling process, the process steps are:
[0032] (1) The steel billet is heated and rolled into the required strip hot-rolled flat steel plate 1a at a rolling temperature of 1100~1150℃; the billet is rolled into a strip with an isosceles trapezoid in cross section The hot-rolled flat steel 1a, that is, the strip-shaped hot-rolled flat steel has unequal widths on both sides. The use of hot-rolled flat steel with unequal widths on both sides can make the inner and outer thickness of the crimped round steel ring the same or approximately the same during the next process of crimping, thereby...
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