DE1508979A1 - Spout for pouring pans - Google Patents

Description

MIiNlINOfNIEUIiE FW HEMMERICH · GtHDMDItERD. GHOSSI 20 S71 DOSSELOORf 10 HOMIERGEI STKASSE 5. ^ 2 »Ιθ3 ^ Γ ^ 39ΦΚΧ

H. ba 12/30/68 -BI-

P 15 08 979.9 STEULEH Industriewerke GmbH - II ^ HR-GRENZHAUSHN

Spout for ladles

The invention relates to a pouring spout for ladles. These spouts are usually designed as one-piece sleeves a central pouring hole formed, which is located at the inlet widened funnel-shaped towards the top. The exterior runs approximately from the longitudinal center in the direction of the funnel opening in the shape of a weak truncated cone and go over to the other side into an inwardly offset cylinder. This spout is inserted into the ladle stone, it must be replaced with a new spout after each batch. That used as the material for the spouts Refractory material flow due to the stress caused by the flowing Steel have a high wear resistance, which im Over the course of the development of the last few years, increasing demands, were eestelit. It appears disturbing

Note that there is a limit to the increase in wear resistance the increase in thermal conductivity associated with this increase is set. Too great a thermal conductivity has the consequence that the in the | βηβ, ||} β ^ ration of the spout standing steel strand ¥ XKK too fast ¥ K ¥ äK ¥¥ and drains the ·. stuffs. In addition, there is a risk that the spout on eea it bakes on the surrounding pan stone and after completion

odes cast from this stone can no longer be removed, so d * S

O ₀ also the ladle stone itself is lost or damaged

will.

ro It has therefore already been proposed to split the spout into two parts

Q to produce in such a way that in. A holding sleeve of above, a task force that forms the actual pouring pipe, was inserted. With this arrangement the possibility arose

Documents (Art-7 δ 1/0 * 2 No. 1 Sentence 3 de XndonineEflgfcV. ^ Λ 1i (U £ 2 BATH ORIGINAL

20 971

H. be December 30, 1968

λ - f 2 -

to use a material for the tube itself that had a relatively high thermal conductivity on the other hand, the wear resistance corresponding to the increased requirements had Ui * disadvantages of this embodiment once consisted in the upper end face of the insert tube in the pouring funnel a more or less disturbing Heel formed, the eddy humidification of the incoming steel favored and caused washouts in the funnel mouth. It could also happen that the thin tube showed cracks as a result of the thermal stresses that occurred, and if one did develop Circumferential crack the lower part of the tube fell out of the pans and was flushed into the casting mold. Finally, there was still the danger that the raw men might slip out of their seat in the Sleeve loosened and floated upwards out of its seat

According to the invention, therefore, the sleeve of the spout from a in GieRrichturig upper funnel part and one below it Holding part exist, the parts with radially extending The separating surfaces lie on top of one another and the pouring pipe from above inserted into the central hole in the held one in the Has funnel part protruding cylinder base, the front fliehe ends below and outside the funnel surface. On the parting surfaces of the two sleeve parts, as the invention further provides, appropriately interlocking annular grooves and annular springs intended. The pouring pipe itself is equipped with an outer king collar resting on the separating surface of the folding part. Furthermore, they are axially parallel in the bore of the holding device extending grooves and arranged on the outer wall of the pouring pipe in these grooves insertable spring strips, which are expedient seen in the casting direction, taper in a wedge-like manner.

The inner cross section of the pouring pipe can, like the Invention still provides a directing the pouring stream and optionally Form contacting swirl guide or a constriction in the manner of a Venturi raw material.

909849/0280

BATH ORIGINAL

20th

h, ba 12/30/1968

The multi-part design of the spout has the advantage nit 'dar', the parts that are not directly »it d ·» liquid steel come into contact, made of materials will be able to offer a high level of thermal insulation with a connect correspondingly lower wear resistance. This way, besides the cost savings that result from The lower production costs of such material result in the risk of caking of the Molding part of the spout significantly reduced on the pan hole stone. On the other hand, the GieP can stir itself from a »very high material Resistance to wear and tear can be established, since the Würmedäimende Halted! 1 too quick a removal of the Were prevented from getting out of the tube. For the funnel part can be Use a material that is resistant to wear and tear the thermal insulation is lower than that of the material used for the pouring tube was used because the funnel part is not stressed to the same extent by the steel flowing in, like the Giefrohr itself.

The three-part design of the spout, in which the Gi e P pipe inserted from above into the llaltctcil through the ring attachment against axial displacements and through the axially parallel grooves against PrehUeanspretzung secured by the on the holding part attached funnel part is set, the disadvantages fall with. associated with the application of the known form of training are gone, especially the disturbances caused by the formation of eddies and washouts in the funnel, as the ring face of the cylinder attachment of the casting roll res below the funnel opening and outside this ends, i.e. the funnel goes into the cylinder bend like a one-piece outlet without any gap or step formation of the pipe over.

The axially parallel spring support reinforce the relatively thin-walled tube of the Gipfrohros and the ktilartigt The tapering in the direction of casting prevents it from falling out

Part of the pipe when a Uiafeng crack occurs.

909849/0280

^w · t] · ¹ ! · einr.d "for the Tichtipkeit rut entsri.? -hcr.c'.cn - '4 -

BATH

The inner cross-section of the pouring pipe can be unchanged External cross-sections have different dimensions «to daC the Possibility is given, with one and the same Autfalldung the holding part and the funnel part depending on the operational requirements the respective desired cross-sectional shape of the pouring pipe to use.

- r. ι -

9098A9 / 0280

BATH ORIGINAL

20 971

(Patent) h. ba

-Cl

P 15 Ofl 979.9

- The drawing shows an embodiment of the invention. She shows in:

Figure 1 - the spout completely assembled in axial section and in Figure 2 - the pouring pipe in perspective.

As FIG. 1 shows, the funnel part 1 and the filter part 2 are located with the radial surfaces 1 a and 2 a on top of each other. In the area 1 a is an annular groove 3 and a corresponding one in the area 2 a Ring spring 4 is provided, which the two parts to be assembled set radially against each other. In part 2 this is in FIG. 2 pouring pipe 5, shown in perspective form, pushed in, it lies with an outer ring approach ο on the Cadial surface 2 a of the üalteils 2 on. Downwards in the pouring direction are on the ring attachment 6 spring strips 7 on the cylinder uiaf ang des Gi ef? rob res 5 is placed in the corresponding grooves 8 in the bore of the llalteils 2 engage and like this down started wedge-like in front of j.

The protruding over the holding part 2 cylinder approach 9 de «Gieß-., Rohrcs 5 is with its ring face ¹ J a below and outside the funnel mouth 10 in the funnel part 1. As can be seen from Figure 1, this arrangement creates a smooth transition from the funnel 10 guaranteed in the interior of the GieProhres 5. The ping attachment () secures the pipe S pe gene axial displacements and the springs 7 in the grooves R ensure, in addition to the rotation lock of the pipe, that the lower part of the pipe does not fall out of the holding part in the event of a Urafangsriss.

SAD ORfGlNAL

909849/0200 -Al-

Claims (3)

20 971 02.26.1968 ι h.ro St 2S H71 VIa / 31b2 - A 1 - Steulor Induatriewerke G.a.b.H .. '5HlO HOhr-Grenzhausan patent claims 1. Spout for ladles «consisting of one in the Ladle stone insertable funnel sleeve before Uäaunung and an axially insertable into this sleeve » exchangeable pouring pipe, which has a low thermal insulation and has high wear resistance, characterized in that that the sleeve is formed in two parts from one in the Gieftrichtung upper funnel part (1) and a holding part (2) arranged underneath it »with the radial running »one on top of the other separating fleeing lines (la and 2a) interlocking ring grooves (3) and ring springs (Ό have, and dAf in a known manner from above ago with a conical section (5) in the holding part (2) insertable pouring pipe with a stepped cylinder section (9) protrudes into the funnel part (1), and the radial annular surface (6) thus formed on a corresponding running ring surface (Ib) in the funnel part (1) rests, the upper ring face (9a) of the cylinder section (9) ends below and outside the funnel recess (10). 909849/0280 New bases (Art. 7 g \ Abs. 2 Na J Sentence 3 of the Änüerungcoea, v, 4 * ι "." ORIGINAL 20 971 26.2.1968 ^, h.ro St 25 171 VIa / 31b ² - A 2 - 2, spout according to claim 1, thereby g k e η η draws, There are axially parallel grooves (S) in the bore of the holding part (2) and the conical Abechnites on the outer wall (S) of the Gießrohreβ in this insertable spring strips (7) are arranged. 3. Spout according to claim 2, characterized, that the grooves (8) and the tongues (7) are in Gie & direction seen, keilartip rejuvenate. 909849/0280 - end - BAD QRiGiN