SU820933A1 - Mill for rolling thick sheets and plates - Google Patents

Description

one

The invention relates to metallurgy, namely rolling production, and can be used in the construction of new plate mills.

. Mills are known for rolling thick sheets and plates, including heating devices, roller tables and driven reversing stands arranged in series one after the other. II. ,

The disadvantages of these mills are that the number of passes in each stand must be odd, for which sometimes an additional blank pass is required; the implementation of the rolling technology that provides the desired temperature deformation mode is associated with a significant loss of production due to the additional pauses necessary to ensure the specified quality of the rolled metal; It requires a well-defined, unchanged cargo traffic, the mill has a relatively large length.

The purpose of the invention is to increase mill productivity and improve the quality of rolled products.

The goal is achieved by the fact that in the mill for rolling thick sheets and plates, including heating devices, reversing cages with a drive, roller tables and accelerated cooling installations for rolls, working cages are installed in a line and equipped with roller tables from the front and rear sides, the roller tables of the same name being connected transmitting devices, and the heating devices are located at the rolling rolls of the first stand.

The drawing shows the scheme of the proposed mill for rolling thick sheets and plates.

The mill contains working stands 1 and 2 installed in-line and equipped with live rolls 3 and 4 from the front and live rolls 5 and 6 on the rear side, with live rolls 3, 4 and 5, 6 connected by transmitting devices 7 and 8. On which the accelerated cooling units are located. The heating devices 9 and 10 are located, for example, parallel to the cage lines 1 and 2 in the roll-on roller tables 3 and 5 on both sides of the cage 1.

The camp works as follows.

From the heating devices 9, the billet is fed to the live rolls 3, the rolls for even or odd number of passes in the cage 1 and at the transmitting devices 7 or 8 are cooled using accelerated cooling installations to a predetermined temperature, these devices transmit the roll to the live rolls 4 or 6 which are rolled the stands 2 are also for an even or an odd number of passes to the specified dimensions, after which the devices 11 or 12 are transported with a transfer device 11 to an outlet roller conveyor 13, through which the roll is directed to the respective finishing unit left or right (see. FIG. 1). The sequence of rolling operations for billets coming from the heating devices 10 is a display of the marked operations.

Claims (1)

The invention of the mill for rolling thick sheets and slabs, including heating devices, reversing stands with a drive, roll tables and units for accelerated cooling of rolls, characterized in that, in order to increase productivity and improve the quality of rolled products, working stands are installed in a line and equipped with roll tables from the front and the rear sides, whereby the same-type roller conveyors are connected by transmitting devices, and the heating devices are located at the roll-on roller conveyors of the first stand. Sources of information taken into account during the examination 1. Tselikov A.I. and Zyuzin V.I. Modern development of rolling mills M., Metallurgi, 1972, p. 137-132 1Q. X N 6 2 -12 one}