Novel stainless steel cold continuous rolling technology and unit thereof

Abstract

A novel stainless steel cold continuous rolling technology unit comprises an uncoiling machine, a straightening machine, a hydraulic shear, a welding machine, a first tension roller, a continuous rolling unit, an outlet loop, a fourth tension roller, a slitting shear and a coiling machine. The uncoiling machine, the straightening machine, the hydraulic shear, the welding machine, the first tension roller, the continuous rolling unit, the outlet loop, the fourth tension roller, the slitting shear and the coiling machine are sequentially connected. The novel stainless steel cold continuous rolling technology unit is characterized in that an inlet loop and a second tension roller set are additionally arranged between the first tension roller and the continuous rolling unit, a cleaning and drying unit, a third tension roller set and the outlet loop are sequentially connected and additionally arranged between the continuous rolling unit and the fourth tension roller, the continuous rolling unit can be arranged in the mode that a plurality of rack four-roller continuous rolling units are connected in series, small-diameter rollers are adopted in the continuous rolling unit, and the continuous rolling unit is driven by supporting rollers in a centralized mode. By the adoption of the technical scheme, some small-scale enterprises can produce stainless steel cold rolling strips by using a common four-roller or six-roller rolling machine instead of twenty-roller and eighteen-roller rolling machines which are high in investment cost and maintenance cost, and therefore the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of rolling equipment. It can be used for rolling hard-to-deform stainless steel annealed and pickled strips. Background technique [0002] Due to the high yield strength and high deformation resistance of stainless steel, especially when rolling 2-series or 3-series stainless steel, the traditional production equipment is mostly 20-high and 18-high rolling mills. Due to the high investment cost and high maintenance cost of 20-high and 18-high rolling mills, some small-scale enterprises use four-high or six-high rolling mills to produce stainless steel cold-rolled strips. Compared with the 20-high and 18-high rolling mills, the reduction rate of a rolling pass is small, and intermediate annealing is often required, thereby increasing production costs. Contents of the invention [0003] In order to increase the reduction rate of four-high or six-high rolling mill in one rolling process and reduce the intermediate an...

AI Technical Summary

Problems solved by technology

Due to the high investment cost and high maintenance cost of 20-high and 18-high rolling mills, some small-scale enterprises use four-high or six-high rolling mills to produce stainless steel cold-rolled strips. Compared with the 20-high and 18-high rolling mills, the reduction rate of a rolling pass is relatively small, and intermediate annealing is often required, thereby increasing production costs

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