DE1583673C2 - Start-up head for a continuous slab caster - Google Patents

Description

The subject of the patent 15 08 896 is a starting head for a continuous slab caster, consisting of two mutually stackable parts with recesses to enclose one with transverse beads or flanged sprue, which by means of locking cams and a rotary or longitudinal wedge are held in the closed and / or unfolded position 3 <> and are particularly useful Design to the subject, through which the way of working is improved.

The two-part approach head for continuous casting systems according to patent 15 08 896 is for sprues suitable, the cross-section of which is bead-shaped or flange-shaped on both sides at the head and foot expanded. Cable car suspension rails, double T-beams, railroad rails are exemplary embodiments Od. Like. Mentioned in which the foot of the sprue covered by the approach head in cross section is practically T-shaped. The two opposing parts of the approach head have accordingly this foot end recesses, whereby a half division is provided. Every approach head part thus comprises a half of the sprue relative to the central axis. In numerous In some cases, however, the difficulty arises in releasing the approach head from the sprue. While that one starting head part is removable, either the strand must be used to loosen the other starting head part or the approach head itself can be shifted laterally before the approach head can be removed. These The method of operation is cumbersome and leads to difficulties, especially with cast strands of large cross-section.

The invention is based on the object of eliminating these disadvantages and difficulties and the To design approach head according to the patent 15 08 896 such that a release of the approach head without Lateral displacement of the approach head or the continuous casting end is possible.

According to the invention, this object is achieved in that the foot end of the which is detected by the starting head Casting piece has an angled flange or bead only on one side and the pivotable Part of the approach head has a corresponding recess.

removed

Profile pieces a valuable work

DeVG? GYnstS of the invention is in the drawing explained in more detail on the basis of two exemplary embodiments, with the common parts being the The same reference numerals as were chosen for the main patent have been used. In the drawing shows

1 shows a starting head with a sprue in a central cross-section,

F i g. 2 the subject of F1 g. 1 in the superseded

Condition and

FI g. 3 another embodiment in one

medium cross-section.

The starter head consists of a part 1 to be connected to the starter chain and a foldable part 2 that can be placed b'w. Both parts 1, 2 have gripping claws 1 a , 2 a, which point to the cast strand. The part 2 can be pivoted about a transverse bolt 6 and has a locking cam 9 on its rear side, by means of which this part 2 can be locked in the opened or closed position by means of a rotary wedge 10. The cast strand is denoted by 7, and between this and the head surfaces of the starting head parts 1, 2, an insulating layer 8 made of asbestos. The like. Attached.

When executing according to the F1 g. 1 and 2 has the sprue 3 at its foot a one-sided L-shaped transverse bead 3 ft, which in the direction of the removable Start-up head part 2 is located. This 3 ft bead shows only after a bit from the sprue 3 α. The starting head part 2 is provided with a corresponding, in cross-section L-shaped recess 5 α, which is designed such that it includes the front part of the sprue 3 α and the bead 36 (see Fig. 1).

The operation of the approach head described above is as follows:

To start up a cast strand, a sprue 3 provided with a transverse bead 3 b is first placed between the starting head parts 1, 2 and the starting head part 2 is placed in the position shown in FIG. 1 position shown and locked. In addition, the insulating layer 8 is applied. The sprue 3 protruding from the starting head which is now ready for use

has any transversely directed beads or flange? at its protruding end. In the execution according to the F i g. 1 and 2 a one-sided 'leg 3 c is provided. During the casting process, the mass of the cast strand 7 is placed around the protruding part of the cast-in piece web 3 a and the leg 3 c. After hardening, the starting head can be tightened by means of an overturned starting chain or the like. To release the starting head, the rotating wedge 10 is released and the starting head part 2 is in the position shown in FIG. 2 pivoted position shown and locked by means of the rotary wedge 10. The transverse bead 3 b is now exposed, and the starting head can easily be pulled off the cast strand 7 and from the insert 3 a in the longitudinal direction.

In the embodiment according to FIG. 3, instead of a transverse bead 3 b on the sprue 3, a correspondingly directed flange 3 d is provided. In a corresponding manner, the pivotable part 2 has a recess 5 ft into which this flange 3 d and the sprue bar 3 a detected by the approach head fit. The potted end of the sprue 3 has a leg or flange 3 c. In the embodiment, the legs 3c, 3d are mirror images of uniform, so that the entire sprue 3 forms a U-profile.

1 sheet of drawings

Claims (1)

Claim: Start-up head for a continuous slab caster, consisting of two against each other swiveling parts with recesses tin Comprising a sprue provided with transverse beads or flanges, which by means of locking cams and a rotating or longitudinal wedge are held in the folded and / or unfolded state, according to patent 15 08 896, thereby characterized in that the foot end of the sprue (3) detected by the approach head (1, 2) only has an angled flange (3 β) or bead (3 ft) on one side and the pivotable one Part (2) of the approach head has a corresponding recess (5 α, 5 ft). This design of the approach head and the use of one only on one side with one Bead or flange provided sprue, the advantage is achieved that after removing the emen Start-up head part, the other start-up head part can simply be pulled forward because it is no longer There is no bead of the sprue piece provided there matures. Despite this simplification, a dyke received good stability and care was taken for a favorable absorption of forces during strand drawing. In this version, too, all the usual profiles can be used, in which at least one Only an angled bead or flange is provided at the end of the web. Sweep the other end of the bridge can be provided with beads or flanges according to the patent 15 08 896 point to both sides or one side there. Such profiles can be U-profiles be that in the works as