DE202007009179U1 - Ingot for receiving a flowing out of a ladle metallic melt - Google Patents

Abstract

Eingusstopf made of refractory and corrosion resistant material a baffle (1.1) surrounded by a side wall for receiving a flowing out of a ladle metallic Melt, which pouring pot (1) for arrangement in an intermediate container (Tundish), to calm down the melt and to hold back of slag is provided, characterized in that at least a portion of the side wall (1.2) one from the inside outside sloping upwards rising slit (2) having.

Description

The The invention relates to a sprue made of refractory and corrosion resistant Material with a baffle surrounded by a side wall Picture of a flowing out of a ladle metallic melt, which casserole for arrangement in a Tundish, which helps to calm the melt and for the retention of slag, is provided.

such Pots have long been for passive flow guidance also referred to as a continuous casting distributor intermediate containers used to improve the degree of purity of steel. It should an ideal melt flow in the continuous casting distributor and a uniform residence time of the melt be achieved with controlled melt turbulence. This should Deadspace areas and so-called short-circuit currents avoided and the deposition conditions for non-metallic inclusions be improved.

Gullies with preferably circumferential inner edge have in stationary casting operation the task to deflect back the pouring stream and thereby spatially limit large-scale vortex and high turbulence in the continuous casting and improve the separation conditions in the rest of the distribution area due to the associated higher energy dissipation in the pouring. It is essential here that so-called short-circuit flows from the pouring point into the continuous casting distributor or intermediate container to the melt outlet openings in the bottom of the continuous casting distributor are prevented. As it is z. B. in the US 5,169,591 A is shown, the point of Pfannengießstrahls on the one hand and the outflow from the Stranggießverteiler at opposite ends of this Stranggießverteilers or intermediate container.

In the DE 10 2006 005 724 is a Eingußopf the initially described type treated in which is provided to improve the effluent from the pouring pot melt in a portion of the side wall of the Eingusstopfes an opening which merges into a subsequent to the outer wall of the Eingusstopfes, balcony-like tray. This is intended to ensure that the melt entering this trough upon exiting the trough receives an upwardly directed flow component which is directed substantially opposite to the flow component of the melt emerging from the top of the pouring pot and flowing downwards on its outer wall.

Of the Invention is based on the object, a relation to the last described in the construction simplified construction To create a cauldron.

to Solution of this problem is the invention Ingot characterized in that at least one section the side wall angled from the inside out has upwardly rising slot. With such from the inside outside obliquely upward rising slit becomes also achieved that out of the casserole through this slot emerging melt the desired upward Flow component receives. Across from a cauldron with a "balcony-like" stem stands out the pouring pot according to the invention by the simplified construction which also provides a simpler method of making such a Eingusstopfes entails.

preferred Embodiments of the invention are in subclaims described. The invention will be described below with reference to the drawings described.

1 shows a side view of a Eingusstopfes;

2 shows a sectional view along the line II-II in 1 ;

3 shows a plan view of the Eingusstopf;

In the case of the present invention illustrated in the drawing 1 joins the baffle floor 1.1 an upward cylindrical wall 1.2 at the upper end of a cone ring 1.3 connects, which leaves a centric opening for pouring a melt. In the sidewall 1.2 are two diametrically opposed slits rising obliquely from inside to outside 2 attached, directly above the baffle floor 1.1 lie. Every slot 2 rises above the horizontal at an angle in the range of about 30 ° -50 °, preferably at an angle in the range of about 35 ° -45 °. Each slot extends over a circumferential angle in the range of about 60 ° -80 °, preferably over a circumferential angle in the range of about 70 ° -75 °. Depending on the horizontal cross-sectional size of the pouring pot 1 can also have more than two slots in a plane 2 be provided as long as it does not affect the strength of the Eingusstopfes.

The distance between the slots 2 bounding inclined surfaces 2.1 is also depending on the height of the Eingusstopfes, usually about 120 mm-450 mm, in the range of 10 mm-30 mm, preferably in the range of 10 mm-20 mm.

With such an embodiment of the single slot 2 that is achieved from the cauldron 1 through the slot 2 emerging melt is given the desired, upward flow component.

While in the drawing, a circular Eingusstopf is shown, concerns the invention also polygonal, z. Square pots, where at least one slot either in a side wall or over Corner is arranged.

According to another invention, the sprue can also be provided with superimposed or staggered superimposed, sloping from the inside out obliquely upward slots, as it is in the 1 and 2 through the slotted dashed lines 2 ' is indicated schematically.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - US 5169591 A [0003]
• - DE 102006005724 [0004]

Claims (10)

Injection pot of refractory and corrosion-resistant material with a baffle surrounded by a side wall ( 1.1 ) for receiving a flowing out of a ladle metallic melt, which Eingusstopf ( 1 ) for placement in a tundish serving to calm the melt and to retain slag, characterized in that at least a portion of the side wall ( 1.2 ) a slanting upwards from inside to outside ( 2 ) having. Casting pot according to claim 1, characterized in that the inside of the slot ( 2 ) directly above the impact floor ( 1.1 ) lies. Injection pot according to claim 1 or 2, characterized in that the slot ( 2 ) with respect to the horizontal at an angle in the range of about 30 ° -50 ° increases. A stamper according to claim 3, characterized in that the slot ( 2 ) rises at an angle in the range of about 35 ° -45 ° upwards. Staking pot according to one of claims 1-4, characterized in that it comprises two diametrically opposed slots ( 2 ) having. Injection pot according to one of claims 1-5, characterized in that it has a round cross section and each slot ( 2 ) extends over a circumferential angle in the range of about 60 ° -80 °. Injection pot according to claim 6, characterized in that each slot ( 2 ) extends over a circumferential angle in the range of about 70 ° -75 °. Injection pot according to one of claims 1-4, characterized characterized in that it has a polygonal horizontal cross-section has, and at least one slot in the region of a side wall and / or over Corner is attached. Casting pot according to one of the claims 8, characterized that he is several on top of each other or offset one above the other having arranged slots. Injection pot according to one of claims 1-9, characterized in that the distance between each slot ( 2 ) limiting inclined surfaces in the order of about 10 mm-20 mm, preferably in the range of about 10 mm-20 mm.