US2245224A - Apparatus for continuously casting metals - Google Patents

Description

June10, 1941. F F, POLAND 2,245,224

APPARATUS FOR CONTINU OUSLY CASTING METALS Filed Sept. 3, 1938 Patented June 10, 1941 2,245,224 I APPARATUS FOR CONTINUOUSLY CASTING METALS Frank F. Poland, Highland Park, N. 1., assignor to American smelting and Refining Company, New York, N. Y., a corporation or New Jersey Application September s, 1938, Serial No. 228,263

1 Claim.

The present invention is directed to apparatus for continuously casting metal in shapes of indefinite length.

It has long since been proposed to continu ously supply metal to one end-of a die or mold and continuously withdraw the. cast metal from the other end thereof, the metal being solidifle'd as it passes through the dieor mold. However, experience has demonstrated that much of the apparatus suggested for the-purpose is in .capable oi! continuously producing soundcastlugs and that other apparatus, while capable of producing sound castings, is commercially un attractive because of the slow casting speed inherent in its use. One of the main advantages of the present invention resides in its ability to continuously produce sound metal castings at relatively high casting rates or spee'ds.

Although the novel features which are believed to be characteristic of this invention will be particularly pointed out. in the claim appended hereto, the invention itself, as to its objects and advantages, and the manner in which it may be carried out, may be better understood by referring to the following description takenin connection with the accompanying drawing forming a part thereof, in which Fig. l is a sectional elevation of one form apparatus incorporating. the features of the invention, I

Fig. 2 is ahorizontal section taken on the line 2-2 of Fig. 1, and

Fig. 3 a side elevation of a portion of the apparatus shown in Fi l.

Referring more particularly, to the drawing, l0 represents a portion of a furnace or reservoir for the molten metal l2. Mounted in the molten metal receptacle is mold ll, same .being countersunk in the'bottom of the receptacle and secured in place by lock nut 16. A cooling jacket i8 snugly surrounds the mold l4. Positioned at will provide the clearance deired to prevent excessive friction between the mold and the solidifled metal. The mold cooling jacket I8 and the multi-sectioned cooling jacket 20 are appropriately made of aluminum or copper and the liner 26 0! jacket 20 may be of ordinary dense graphite inasmuch as solidification of the metal has normally taken place before the casting contacts said liner. In the drawing the cooling jacket 20 is shown to be held in position by the hinged members 32 aflixe'd to the mold cooling jacket i8 and the split jacket 20. However, other means may be employed for holding the jacket in place. Also, the cooling jacket 20 may comprise a plurality of shorter similar pooling jackets and, further, instead of two split sections, diiTerent numbers of sections may be employed.

In performing the casting operation, the

-molten metal I 2 is caused to continuously flow irom the receptacle i0 into themold H by the continuous withdrawal of the starting rod or casting 34 by drive rolls, not'shown. solidification of the metal is eilected in the mold It, as indicated in Fig. l, by vigorous circulation of water or other .cooling medium through the jacket [8. From the mold H the solidified metal j enters the multi-sectioned' cooling jacket 20 where further heat is extracted from the hot casting by circulation of cooling fluid introduced to the jacket by pipes 30 and 38. Inasmuch as the various sections of the cooling jacket 20 are jacket.

prising a plurality of sections, as-shown, yield- This application is a continuation-impart oi the prior application of Frank F. Poland, Serial No. 39,362, filed September 6, 1935.

While certain novel features of the inventio have been disclosed and are pointed out in the annexed claim, it will be understood'that various omissions, substitutions and changes'may ably interconnected by bolts 22 and springs 24;

each of said sections having a liner 26. Pipes 28, 30 and 30a are provided for supplying cooling fluid to the mold water jacket i8 and the be made by, those skilled in the art without departing from the spirit of the invention.

What is claimed is:

- comprising a receptacle for molten metal, a mold mounted in "said receptacle, a unitary cooling jacketsurrounding said mold, and a multiple? sectioned cooling jacket having its sections yieldably interconnected and sell-adjusting with respect to the shape of solidified metal passed therethrough, characterized in that the walls of h each of'said sections define a passageway for the circulation oi. cooling fluid through the section out of contact with the solidified metal passing through the jacket.

asmuch as shrinkage of the metal in such cases FRANK POLAND.

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