US3165795A

US3165795A - Apparatus for teeming of molten metals

Info

Publication number: US3165795A
Application number: US278818A
Authority: US
Inventors: George C Bahm
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-05-08
Filing date: 1963-05-08
Publication date: 1965-01-19
Anticipated expiration: 1982-01-19

Description

'in use.

United States Patent O 3,165,795 if ARPARATUS FOR-TEEMKNG or MoLTnN :smrars Georg; C. Bahm, 354AustimDrive, Fairless Hills, Pal Filed May 8, H63, Ser; No. 278,318

' 5 Claims. (i.,22- 34) I Like numerals refer to like parts, throughout the several views.

Referring now m'oreparticularly to FIG-1 of the drawings a ladle tank ill is shown having a bottom nozzle This invention relates to the'teejming'of molten metals.

The practice for over seventyfivefyears has been to employ'an internal stopper rodasse'mbl-y for the'teeming of molten metals from a refra'ctory lined ladle into moldswhere the metal coolsto solidification and for further processing. The stopper rod has a special head which seats at the upper end of anozzle mounted in a nozzle plate carried in the bottom .of the ladle. At'the top of the steel rod a gooseneck is attached to which a stopper rod lifting assembly is connected, this in turn being controlled by an operating lever assembly exteriorly disposed with respect to the ladle. With this'structure'the rod is raised It is a further object of the present invention to provide improved apparatus for the teeming of molten metal which in one form can be mounted on the ladle from the inside and which in another form can be mounted on the ladle from the outside depending upon the specific ladle construction which is employed.

It is a further object of the present invention to provide improved apparatus for the teeming of molten metal which is expendable and is quickly replacedif desired or required for a new heat. p

It is a further object of the present invention to provide improved apparatus for the teeming of molten metal which can be manually or power operated as desired.

It is a further object of the present invention to provide" improved apparatus for the teeming of molten metal which is not adversely aflfected at the temperatures and forces.

applied thereon in use. Other objects and advantageous features of the invention will be apparent from the descriptionand claims.

The nature and characteristic features of the invention will be more readily understood from the following description taken in connection with the accompanying drawings forming part thereof, in which:

FIGURE 1 is a fragmentary vertical sectional a ladle having one form of teeming apparatus in accordance with the invention mounted thereon;

view of in place'by nuts 2- clay 23 is provided'to'fill the space between the exterior of the wall 19 and the opening 16. Within the jacket 18 a cap 31) is provided, which may plate 11 and a ceramic refractory lining 1 2. The bottom plate 11 has an opening 15. and refractory lining 12 has an opening 16 axially aligned with the opening 15.

Referring now more particularly to FIGS. 2,,3 and 4 of the drawingsythe form of. teeming apparatusof the present invention 'for insertionfrom the interior ofjthe. ladle tank '16 preferablyincludcs a jacket 18 which can be and preferably is of'metal', with a hollow cylindrical. side wall 19 having an inner faceZiLand abottom wall 22 with a top face 23, a bottom face '24 and a central opening ZS-therein between the top and bottom faces 23 and24-.' 1

:The. bottomwall 22 rests 'on and is supported by the bottom plate 11 arid is provided with a-pluralityvof studs 26 which extend downwardly from the bottom face 24 and through the bottom plate "11. The studs 26 are held 7 thereon. in use razmned refractory be of ceramic refractory material having a hollow cyline drical wall 31 engaging the inner face Z-tlofthe side wall 19 and resting on and being supported bythe top face 23 of the bottom wall 221. The cap 39 also has an integral. top wall 32 preferably with a slightly dished upp'erlface -33and a flat lower face 34. A port opening 35' is' provided preferably offset cap 3th 1 The cap 3%, inthe interior thereof, i sprovided with a core or spindle 37, preferably'of ceramic refractory material, having an upper portion 33 of cylindrical shape in horizontal'cross section withan outer vertical face 39, a

V with an outer face 41 and which extends-through the cylindrical downwardextension 4i ofreduced" diameter opening 15 and below thebottom plate 11, and a lower operating extension 42 shown as having a hexagonal exterior 43. The upper portion 38 has the outer side face 39 thereof rotatable within the cylindrical wall 31, has a flat upper face 45 engaging the flat lower face 34 of the cap 3t and has a lower shoulder 4s.

The core or spindle 37 has extending vertically therethrougha port 47 in offset relation to thevertical central FIG. 2 is an enlarged vertical central sectional view 1 of the teeming apparatus shown in the ladle; 7

FIG. 3 is a'bottom plan in FIG. 2; i v

FIG. 4 is an exploded perspective view showing-"one type of actuation; and a I I FIG. 5 is a view similar toFIG. 2 showing another form of teeming apparatus in accordance with the in- FIG. 1 removed from vention.

It should, of course, understood that the description and drawings herein are illustrative merely and that various modifications and changes can be made in the p View'of the apparatus shown 7 location the ladle tank 19 is moved to the delivery' structure disclosed without departing from the spiritofl the invention.

axis thereof. The port 47 is adapted upon turning of the core or spindle 37 to be moved into alignment with the port opening 35 or out of alignment therewith.

. in the space between the shoulder 46, the face 41, and" the top face 23; of the jacket/2d, a thrust bearing ring 48 is provided which may also be of ceramic refractory ma-. terial containing a suitable lubricating component such as graphite.

In the form of the invention ow in'FIG. 5 the coil? struction is the same as that previously described, except that the outer face of the jacket 13' is frustoconical and complemental to a frustoconical opening 16' inthe bottom refractory lining 12,. andhas studs 53 which are held in a mounting ring 511' by nuts 52 on the studs 54!. The I mounting ring 51=is carried on studs 53 on the bottom V plate 11 and held in place by nuts 54 on the studs'53. An operating lever 55 engageable with the hexagonal exterior 43 permits of turning of the spindle 37 as desired.

The mode of use will now be pointed out. Assuming that the ladle tank 10 has a charge of molten metal therein'which is to be delivered into a'moldor other desired location. v

The operating lever 55, engaged with the hexagonal exterior 43 of the spindle .37 is swung ina horizontal 7 plane manually or with any'desired mechanical operator greases Patented aaazx egress from the vertical central axis of the metal the lever 55 is moved to turn the port 47 to a position out of alignment with the port opening 35.

Leakage of molten metal is obviated by reason of the relation of the

jacket

18 or 18, cap 36 and spindle 37.

It will also be noted that the apparatus of the present invention can be readily installed from the interior of the ladle tank 10 as in FIGS. 1,2 and 3 or from the exterior, as in FIGS.

I claim:

1. Teeming apparatus for use with the bottom wall of a ladle tank having an upper face comprising a cap having a top wall flush with said'upper face and a side wall extending downwardly from said top wall, said cap having a vertical port in said top wall, a spindle rotatably mounted within said cap on a vertical rotational axis with its top extremity beneath said top wall and surrounded by said side wall, said spindle having a horizontally disposed supporting shoulder intermediate its top and bottom extremities, a supporting bearing beneath said shoulder, said spindle having an operating portion extending downwardly below said bottom wall, and said spindle having a vertically extending port therein normally in offset relation to said vertical port and movable into alignment therewith.

2. Teeming apparatus as. defined in claim 1 in which ;'a jacket is provided in surrounding relation to said cap, said jacket has a cylindrical outer face, and said jacket is assembled to said bottom wall of said ladle tank from above.

3. Teeming apparatus as defined in claim 2 in which said jacket is surrounded by a ring of refractory.

.Wall engaging and extending downwardly within said I jacket, said cap top wall having a vertical port opening therethrough ofiset from thecenter thereof, a cylindrical spindle rotatably mounted within said cap' on a vertical rotational axis with its top extremity beneath and in engagement with said top wall and surrounded by saidside wall, said spindle having a vertical port offset from the vertical central axis thereof normally out vof alignment with said vertical port opening and movable into alignment therewith, said spindle having an upper portion terminating at a shoulder and a downward operating extension therefrom, and a supporting bearing beneath said shoulder.

References Cited by the Examiner UNITED STATES PATENTS 6/88 Hood 251-404 9/24 Pleukharp et a1 22-34 FOREIGN PATENTS 611,024 10/60 Italy.

MICHAEL V. BRINDISI, Primary Examiner MARCUS U. LYONS, Examiner.

Claims

1. TEEMING APPARATUS FOR USE WITH THE BOTTOM WALL OF A LADLE TANK HAVING AN UPPER FACE COMPRISING A CAP HAVING A TOP WALL FLUSH WITH SAID UPPER FACE AND A SIDE-WALL EXTENDING DOWNWARDLY FROM SAID TOP WALL, SAID CAP HAVING A VERTICAL PORT IN SAID TOP WALL, A SPINDLE TOTATABLY MOUNTED WITHIN SAID CAP ON A VERTICAL ROTATIONAL AXIS WITH ITS TOP EXTREMELY BENEATH SAID TOP WALL AND SURROUNDED BY SAID SIDE WALL, SAID SPINDLE HAVING A HORIZONTALLY DISPOSED SUPPORTING SHOULDER INTERMEDIATE ITS TOP AND BOTTOM EXTREMITIES, A SUPPORTING BEARING BENEATH SAID SHOULDER, SAID SPINDLE HAVING AN OPERATING PORTION EXTENDING DOWNWARDLY BELOW SAID BOTTOM WALL, AND SAID SPINDLE HAVING A VERTICALLY EXTENDING PORT THEREIN NORMALLY IN OFFSET RELATION TO SAID VERTICAL PORT AND MOVABLE INTO ALIGNMENT THEREWITH.