US1913358A - Mold for casting metal - Google Patents

Description

June 13, 1933. HQBERVE MOLD FOR CASTING METAL Filed Feb. 6, 1931 Fig. Z

EVA v Fig.6.

Patented June 13, 1933 UNITED STATES'PATENT OFFICE im'mnrcn maavn, or oasnmi 1mm osnamwcx, GERMANY, ASSIGNOR ro x'nocxnmwmn a. o, am. on'oaes-mamn-wnaxn, or osnannnox, enemy Mom) ron. cas'rm Jamar.

I Application fled February 6, 1981, Serial Nb.

This invention relates to a niethod for the production of compound castings or cast locks and more particularly a to those methods in which several chill moulds secured to yoking plates, are filled with molten a metals from separate'gates or inlets, preferably simultaneously, by the bottom casting .formed by aknown divisionplate or plates in the chill mould, so that the materialin one chill mould side reaches the'upper edge of the division plate or plates more quickly and by.flowing to the other chill mould side,

becomes mixed with'the material contained in the latter. This results in theproduction of unusable heads to the blocks, whlch is avoided by the present invention.

The mixin of the block sides in the head of the block 1s avoided according to the invention by using one or more plates projecting beyond the upper eggs of the normal division plate or plates.- ese plates projecting beyond the upper edge of the normal division plates, may be auxiliary division plates sus ended from the top into the chill mould an reachingto a point below the upr edge ofthe normal divisionplates, or at last one of the normal division plates may be made longer than. the other. one orthe other ones. I

In place of the shorter normal division plates may also'be usedplates of the same height provided in the upper part with cuts or perforations. I The accompanying drawing illustrates diagrammatically examples of division plate arrangements and constructions according to the invention; f

1 Figures 1 and 2 show a vertical central section through a chill mould with an auxil- Figure 3 is a similar section through a third construction.

Figures 4 and 5 are sections of chill 513,901, and in Germany November 1, 1880.

moulds, illustrating the construction of a division plate according to Figure 6 pro-. vided with cuts or perforations.

Figure 6 is a vertical section of a chill mould of a fourth construction.

Figure. 7 is a vertical section of a chill mould according to a fifth construction.

A In the drawing, K is the chill mould, and E and E are the gates or inlets for the corresponding sides H and W. The letters A indicate the normal division plates, the letters B. the suspended auxiliary plates.

As will be seen from Figure 1, an auxi iliary plate B is suspended from the top into the chill mould and projects between the division lates A, A, reaching to a point below their pper edge. The auxiliary plate may be perforated in the same way as the division plates A, A, but it may also be solid. Assuming that the material rises in the chill mould side W quicker than in the chill mould side H, it will first flow over the division plate A and rise in the central chamber formed by the division plates A and A until it reaches the bottom edge of the suspended plate B. Here it will be cooled by the plate .B' and the division plate A so that it will be unable at first to pass into the chill mould side H. In the meantime, the material in the chill mould side H will have risen to such an extent that it will be on the same level as in the chill mould side W.

Figure 2 shows a similar construction with a sip on-like seal, as Figure 1. In this case, only one division plate A is used, at both sides of which there are suspended from the top two auxiliary plates B, B. Let it be assumed again that the material rises more quickly in the 'chill mould side W. The material passing between the plate B and the division plate A, and afterwards between the division plate A and the auxiliary plate -B, will then be-cooled in such a manner as to detay its further rising, and the material of the chill mould side H will be given time to reach the same levelas the material at the other side of the chill mould.

In the construction according to l 'igure 3,

the object aimed at is attained by making one of the two division plates, in this case A longer than the division plate A. If in this case 'the material of the chill mould side W rises quicker than the material at the chill mould side H, it will beheld up by the division plate-A and if the latter melts, will flow-through the central chamber formed by the plates A and A If however the material of the chill mould side H rises quicker, it will flow first over the up er edge of the plate A into the central cham er and if the latter is filled by it, will be cooled by the division plate A. Consequently, in this case also, time is gained, in which the material of the chill mould side W can rise further.

The same result will he obtained by usin in place of the shorter division plate A accordingto Figure 3, a-plate.A of the same height according to Figure 6, which is provided at the upper part with cuts F (Figure 4.) or perforations G (Figure 5).

A further construction is shown in Figure 7, in which three division plates A, A A, are used, the central one A being higher than the others. The plate A maybe perforated or solid. These three plates form two central chambers, of which that facing the morequickl rising chill mould side is more quickly filled by. the material of the said side, and the process of mixing in the other central chamber is'accelerated, whilst overflowin at the same time the division plate A prevents the more quickly rising material from until the material of the other chill moul side has risen.

top of the mould cavity between said diviv the division plates, for the purpose descrl 4. A compound-ingot mould provided with a division plate extending from the bottom of the mould cavity to a point below the "to of the mould cavity, and with a plate sion plates and to a point below the top:1

on eac side of said division plate and spaced apart therefrom and extending from the top of the mould cavity to a point belowthe upper edge of the division plate, for the purpose described.

5. A compound-ingot mould comprising a mould body, and a'pair of substantially vertical, laterally spaced plates dividing said mouldbody into separate com artments, said plates having limiting edges disposed in vertically spaced, substantially horizontal planes adjacent to but below the top of the mould body.

6. A compound-ingot mould comprising a mould body, at least one substantially vertical division plate within-the mould terminating at its upper end below the top of the mould, and at least one plate extending downwardly from the top of the mould in lateral spaced relationship to said first mentioned plate and terminating at. its bottom above the bottom of the mould and below the top of said first mentioned plate.

In testimony whereof I have signed my name to this specification.

' HEINRICH BERVE.

In place of the intermediate plates could be used of course also wire netting, sheet metal strips, hoo iron,etp.

The suspende parts need not necessarily be of iron, they may be made also of other metals or.- other materials such as for instanceJireclay, asbestos, wood, cardboard or the like. r v

The suspended arts need not necessarily be left in the bloc they may be withdrawn after casting.

I claim z- 1. A compound-ingot mould provided with a plura 'tyof division plates arr ed therein in 5 planes, said p ates havingsubstantially hori-v zontal limiting edges disposed in vertically spaced planes adjacent to but below the top of the mould.

2. A compound-ingot mould provided with at least two substantially vertlcal, laterally spaced divisionplates, said plates terminatin at their upper ends below the top of the mo d and at least one of said division plates being of greater height than another.

3. A compound-ingot mould provided w th two co-extensive division plates of less height than the mould- .cavity and spaced apart In parallel vertical lanes therein, and with a third plate exten downwardly from the paced apart parallel vertlcal

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