Übersetzung für "Soft reduction" in Deutsch

This bulge 5 is pressed fully or partially back in during the soft reduction zone III.

I am in favour of a soft but constant reduction and de-emotionalisation of individual traffic.

To reduce segregation in the strand during continuous casting and to obtain better material texture, the strand thickness is generally reduced between 0.5 mm and 3 mm per meter in a soft-reduction line in the final solidification area of the continuous casting plant.

In particular, soft reduction does nothing to improve the inner texture of the cast strand and there is no compression of the core texture if the strand is already solidified before it goes into the soft-reduction line or is not solidified by the time it reaches the end in the soft-reduction area.

Because the changing position of the soft-reduction area along the casting flow direction is established and the spindles 16 are set at reduced load during casting, the rollers 2--whether they are set individually or in a unit in relation to one another can always be adjusted to the changing casting parameters and/or the position of final solidification point 28, which changes accordingly.

Finally, it is possible to set the reduction in thickness within the soft-reduction area in various ways and thus improve the inner quality.

If it is established that the desired position of the soft-reduction area has moved, the rollers 2 can be set during casting and adjusted to the position in the soft-reduction area, i.e., set closer there than necessary due to the shrinkage, since the spindles 16 can be set at reduced load.

By means of this so-called "soft reduction", a reduction of the strand thickness by as much as 30 mm may be obtained without quality losses.

By the possibility of combining the three forming stages provided in accordance with the invention, the overall plant flexibility is increased, since the overall process remains in operation without any losses of quality or output even without "soft reduction" (first forming step) with liquid sump and/or without rolling upon complete solidification (second forming step).

The method according to claim 1, comprising reducing a strand thickness with a rate of less than 1.25 mm/s by dividing a total thickness reduction into the rolling and casting reduction immediately underneath the mold and the soft reduction in the remaining strand guiding means at a maximum casting speed.

The patent document EP 0 450 391 B1 discloses a device for supporting a metal billet, especially for soft reduction, in a strip casting plant wherein below the continuous casting die on both sides of the billet mirror-symmetrically and oppositely arranged roll supports are provided whose rolls are in operative contact with the billet.

The guiding units comprise at least the entire vertical segment of the casting production line wherein at least a portion of the rolls of the guiding elements cooperate with adjusting devices which are controlled by a process data unit in order to ensure a controllable soft reduction at least in the second part of the vertical segments.

By aid of this vertical supporting stand 5, a socalled "soft reduction" of the solidifying strand 4 still having a liquid core is carried out as the first forming step, the stress exerted on the strand shell in the two-phase boundary layer remaining below the ultimate elongation affecting the final product quality.

By means of the subsequent further billet cross-section reduction along the remaining billet guide, the so-called soft reduction, up to a point maximally directly before the final solidification or the liquid phase tip, a critical deformation of the billet can be prevented by taking into consideration the casting speed as well as the steel quality.

The roller pair of the segments through which the strand passes are thus progressively more closely spaced in the soft reduction region so as to improve the internal quality of the strand in the residual hardening region.

In a continuous casting plant with a soft-reduction area, this reduced-load setting of the spindles 16 makes it possible to adjust the rollers, which must be moved closer together in the soft-reduction area as a result of the shrinkage of the strand, to changing casting parameters, during operation.

The guide elements comprise at least the entire vertical segment of the casting line wherein at least some of the rolls of the guide units cooperate with adjusting devices which are governed by a process data unit in order to ensure a controllable soft reduction at least within the second part of the vertical segment.

With the subsequent further billet cross-section reduction across the residual billet guide, the so-called soft reduction, up to maximally directly before the final solidification or the sump tip, a critical deformation of the billet, taking into account the casting speed as well as the steel quality, can be eliminated.

The patent document EP 0 450 391 B1 discloses a device for supporting a cast metal billet, in particular, for soft reduction, in a steel strip casting device, wherein below the billet casting die at both sides of the cast billet mirror-symmetrically positioned roll supports are provided whose rolls interact with the cast billet.