DE1061040B - Device for continuous casting of metals - Google Patents

Description

GERMAN

In the continuous casting of metals, as is well known, a distinction is made between two main groups of processes, namely the so-called continuous and the semi-continuous process. The latter also becomes multiple referred to as the deflection process. With both methods it is necessary to start casting the To close the mold at its lower end to form a strand foot, which is then preferably is guided out of the mold by continuously acting pulling devices. With continuous So far, so-called drive-in bolts or pieces have been used for this purpose, which fit in shape and cross-section in the mold and whose length is dimensioned so that they are of the can be detected under or behind the molds arranged transport rollers. At her upper At the end, the drive-in bolts carry devices or means with which a firm connection to the cast Material is to be produced. Due to the mostly large construction heights, it works vertically Continuous casting plants and the often large cross-section of the strands to be cast have these drive-in bolts not only great weight, but also considerable length, and their introduction into the plant requires time and a significant amount of work, especially when it is composed of several parts must be in order to enable introduction and discharge. It has already been suggested been to reduce the weight by only the head end of the driving bolt The shape and cross-section of the mold were, while the remaining part was smaller in cross-section, e.g. B. in shape a round bar was formed without eliminating the difficulties because still a considerable length remained to be retracted and extended, which can also be carried out with great accuracy got to. Since the Einfahrbolzen. Is required after each extension of the finished cast strand and reinserted their use is an ongoing significant burden.

When semi-continuous borrowed, so-called lowering method the plug for the mold, if one is arranged, is usually from one table-like device carried, on which the strand produced rests and according to the progress of casting is lowered. This procedure is generally done by reaching the lowest possible Position of the lowering device and / or limited to the amount of metal that can be poured. It does, however among other things, the advantage that long, unwieldy entry pieces are not required because the A table-top-like device may itself be able to form the mold closure also takes over the discharge of the strand formed.

Continuous casting device
of metals

Applicant:

Mannesmann Aktiengesellschaft,
Düsseldorf, Mannesmannufer 1 b

Dr.-Ing. Karl Georg Speith; Dr.-Ing. Adolf Bungeroth,

■ Duisburg-Huckingen,
and Hans Schrewe, Duisbufg-Ungelsheim,
have been named as inventors

The invention is a device for Continuous casting of metals, combining the advantages of continuous casting with those of the lowering process. allowed. The stopper that closes the mold in a known manner , will be solvable by an aas eem strand lowering process supported device known per se, which is designed to be pivotable according to the invention. The drive and guide means of the support device are parallel to the strand axis, but outside this, z. B. in the form of the known screw spindles, and their movement is controlled by a causes its own drive unit. But it can also be coupled with that of the transport rollers and finally, also controlled by the transport rollers alone will. After reaching a certain exit length of the strand, for example about then if the. If the strand is gripped by the transport rollers, the stopper is fastened by the supporting device solved manually or by means of special devices and the support device automatically or swiveled out by hand. Practically at the same time the coupling of the transport rollers is possibly carried out solved with the drive means of the support device.

A corresponding device is on hand

Drawings in connection with a plant for vertical continuous casting, described below. In Fig. 1 .is the system with the devices dar'r

posed; . . .

Fig. 2 shows a plan view of the arranged support device; .; ' . . . ..

3 shows details of the release device between the support device and the stopper; "'"' *

909 560/370

Claims (1)

3 4 Fig. 4 shows the design of the connecting pieces, instead of the spindle and Galles. Chains can Their upper part with the liquid material, analogously, also rack and gear wheels or end welding target; use loose ropes. Fig. 5 shows the release device from above with In Fig. 2 is a plan view of the Stützvorrioh- the crossbar in the locked state. 5 shown from above. The mold 1, into which the liquid material is ¹ The supporting device 4, which the stopper 2 as well as is poured, is in its lower part with a base 5 (Fig. 1), is on the one hand with the more or less plate-like stopper 2 ver nut 7 carried by the spindle 6 and on the other hand closed, the arc-shaped connection, for example, guided between the rails 8 and 8a. On the connection pieces 3, which are to be welded to the cast-in base or on the plate-shaped stopper, are to be welded to the material. Arranged by any pre-connecting means 3 associated with the facilities, e.g. B. tabs and wedges or the like. The cast material is welded, while the plug 2 releasably fixes on a support device 4 plate-shaped stopper 2 with the support device 4, which is advantageously releasably connected in the arrangement. The stopper 2 can be formed with a base 5 15 so that it is compatible with the material. The support device 4 is welded in the illustrated, that is, remains on the finished casting, like the case of a vertical, above and below also that it is carried on the base 5 of the support device 4 mounted spindle 6 and is fixed to it by means of a, while, for example, only the fixed screw nut 7 moves, the arcuate connecting piece of which engages in the thread of the spindle 6 in the casting thread. Remain on 20. the opposite side, the support device by Fig. 3 _ze IGT the latter arrangement. The or more guide rails 8, possibly base 5, has bores 12 into which the arc conveyor a second spindle, which is also driven, is inserted and guided by various connecting pieces 3. The spindle 6 is held by means of a gear 9 either latched cross bar 13. The one directly from a motor or via a further cross bar 13 is movably attached to a lever 14 with the transport rollers 10 at the same time, which is rotatable about the point 15. The Driven; But it can also click from the transport rollers 19 on the crossbar 13 is dimensioned so that it can be controlled 10 alone. After the strand 11 has reached the transport rollers 10 in the end of the connection run of the casting that is inserted into the bore 12 and can release the plug 3 by displacement, the stopper 2 is released from the support 30 while the connector 3 is in turn aligned 4 , after which the latter, after it wears at the end of the recess 18, in order to enable the movement of the cross bar guide bar 8 _to enable 13 (see Fig. 4). The cam 16 which is pivoted to, if necessary, in its release lever 14 will run up in the course of the strand movement to the starting position directly under the mold back - a release rail 17, which will be moved to its displacement. In order to cause the support to pivot inwards, which enables the crossbar 13 to move the device 4 into its guide rails 8 with its notch 19 into the recess, one or more of the guide rails 8 have reached the opening 18 of the connecting piece 3 and so the can be folded down at its upper end and made possible with a coulter solution from the support device 4,
od kidney. like. provided that a folding out the ends FIG. 4 _ze JGT the formation of the connection permitting. 40 piece 3 with the recess 18 into which the transverse When a second spindle is arranged, it acts as a guide bolt 13. agents for the supporting device is pivotable Fig. 5 _ze JGT the triggering device from above with bare end of the support device carrier so designed- cross bar 13 in the locked state as well as the det that it can hold the second spindle, so notch 19 in the cross bar 13. z. B. as a split nut that can be locked, or 45 I _{n of} the same figure below is the position of the It consists of a connector that is drawn on and / or cross bar 13, which he used to solve the to a screw connecting piece 3 from the support device 4 or nut is placed and / or connected. from plug 2 occupies. Another embodiment of the device for carrying out the invention, which can be swiveled out according to the invention, is, for example, a direction that allows one to carry out a longer and more advantageous continuous casting process instead of the spindle, but without the references but two Gallean chains unwieldy starting pieces and, with the support device, for example, on the other hand, the disadvantageous limitation of the lowering device formed by a console in a chain or in two lowering methods due to the limited path of the lowering chains through a simple connecting piece 55 and / or by the limited between the chains . These chains do not add to the castable amount of metal.
can, like the spindle, together with the transport rollers or be driven alone. The Ρλτρνγτλ _Μ <: ρρ (ιρτιρ
Chains preferably run over separately arranged sprockets, which, however, also run on the Trans- 60 l. Support device for the continuous portrolling can be provided. It is recommended under continuous casting of metals, which from a parallel circumstances, with such a spindle or the like Purchase to support device is pivotable.
take to keep the aggregates for the chains etc. outside- 65 2. Support device according to claim I, characterized by being able to keep the immediate mold area marked by the spindle shaft opposite. Such a lengthened stopper is then guided by means of guide devices, possibly one in the strand shaft by means of support rollers or the like. further spindle shaft. and the chains are advantageously of a 3rd support device according to claims I. Quiver surrounded. 70 and 2, marked duroh a the bottom of the