US1553921A - Adjustable chill mold - Google Patents

Description

'Sept'. l5, 1925.v 1,553,921

M` ANGsT ADJUSTABLE CHILL MOLD Filed Dec. 21, 1923 7 f 'f j/l/ 7 i 4' INVENWR.

,Patented sept. 15, 1925.

- UNITED NSTATT-:s

1,553,92i PATENT ortica.

MAXIMILIAN ANGSI', OF VNETJ'I-IAU'SEN, SWITZERLAND, ASSIGNOR T0 ALUMINUM- INDUSTBIE-AKTIEN-GESELLSCHAFT, F NEUHAUSTEN, SIV'ITZEBLAND, A. Sii/'ISS CORPORATION.

ADJUSTABLE CHILL IVIOLD.

Application filed December 21, 1923.

To all whom it may concern:

Be it known that l, MAXIMTLTAN A Nos'r, a citizen of the Swiss Confederation, and residing at Neuhausen, Switzerland, have invented certain new and useful Improvements in Adjustable Chill Molds, ot which the following is a specification.

This invention relates to adjustable moldsl for use in the manufacture of ingots or aluminium and its alloys which can be rolled.

In the gold and silver industry it is known to provide adjustable molds having one liked longitudinal wall and a second longitudinal wall movable along the fixed one. rEhese moldshaverthe defect, however, that they enable only ingots of various breadth, and not ingots ot various thickness to be cast. In addition, these known molds are intended for ingots ot only quite small dimensions and are not adapted for use in casting aluminium at the present day as ingots ot lO-lOOO kg. are now required.

Such aluminium ingots weighing up to 100 kg. are usually cast so that they stand on edge in the chill molds, so that the socalled pouring piece is on the smallest Jface of the cast ingot. When perfect ingots of heavier weight are to be produced they are cast in chill molds that lie down flat and the pouring piece is on one of the larger faces of the ingot so that when the ingot is rolled it is situated on the middle of the rolled plate or sheet. Asthis is not permissible the pouring piece has to be removed by milling, turning or planing and a flat face produced. In the improved mold according to the present invention the movable longitudinal wall can be shifted horizontally towards and away from the fixed one, and in addition the mold comprises movable end walls, so that it ena-bles ingots to be cast edgewise-on up to largest sizes and weights required. The movable longitudinal wall preferably rests with a cranked portion on the bottom of the mold, whereby not only is a tight fit and a considerable degree oi' movability ail'orded, but also suiiicient stability of the movable longitudinal wall in each position it may occupy.

The metal is poured along a narrow side into the chillmold and the pouring piece is formed on a narrow side of each ingot, one orl more pouring pieces being produced according to the length of an ingot. The

Serial No. 682,129.

pouring pieces on the narrowrside have the great advantage that theyV do not need to be removed 'before the rolling operation,A be" cause they pass into the edges which are removed in any case when cutting the plates or sheets. Considerablev loss ot material is saved and extra work is avoided, and the production cost o' the ingots or billets ready for rolling is diminished. Owing to dispensing with the pouring-in funnel material is also saved. rlests have shown that an important advantage of the improved castiron mold is that the ingot poured broadside-on can be made much denser and co1npletely free from pores, so that it is preferred for the manufacture of plates or sheets iree from blisters.

Further, the adjustability of the walls of the mold has the great economic advantage that a smaller number of molds vsuflices to meet the very various demands oi the rolling mill, whereas heretofore for each shape or size of ingot a mold had to be made especially for it.

@ne form of improved chill Vmold according to the invention is illustrated by way ot example in the accompanying drawing, wherein Figure l is a top plan view,

Figure 2 is a vertical longitudinal section, and

Figure?) is a transverse section.

Like reference numerals designate like parts throughout the several views.

The mold comprises a liked longitudinal wall 2 integral with the bottom 0, and a movable longitudinal wall l movable towards and away Jfrom the wall 2. This wall 1 has a cranked portion with which it rests on the top of the bottom 0` of the mold, and the whole mold is mounted in a pouring `frame which is not illustrated.

The two end walls 3 and 4 are movable in the longitudinal direction of theA mold. The two longitudinal walls l and 2 can be drawn together by bolts 5 which are pivoted to the wall 2 and extend through slots in the wall l to the outside of the latter where they carry nuts. Further, the wall l can be shifted by screw bolts 6 towards and away from the bottom, packing of various thickness according to the desired thickness of ingot being employed between the otlsetlimb of the wall l and the opposed vertical face of the bottom of the mold. The end walls 3 and 4 can be given the desired width corresponding to the required thickness of ingot by means of packing pieces, or alternatively each end wall may be exchanged for an-` other one ofl the desired size.

In order to prevent the upper parts of the longitudinal walls l, Q; from bulging outwards during the pouring of the metal they may be held together, by one or more l!- shaped members, the number vemployed depending on the length, of the mold.

Bolts 7 extending through the Offset linib of the wall l and abutting against the op posed vertical face of the bottom O of the moldy serve for forcing the wall 1 away from the ingot so that the vlatter may be removed from the mold. It has been found in practice that it suffices to shift the wall l about l-Q, nim. in order to enable the ingot to be conveniently drawn out of the mold .after removal o-f the end wall l and tilting the mold.

The construction of the described chill Inoid is such that the ingot can bey taken out in the shortest time possible and that the mold can be prepared exceedingly rapidly for a new pour.

I Claim 1f 1. An adjustable non for. casting mais of aluminium and its alloys, comprising inA combination a bottom, a longitudinal wall fixed thereon, an adjustably movable longitudinal wall making joint with the bottom and movable towards and away from the 85 fixed wall, and two end walls making joint each with the bottom and with the longitudinal walls one of whichl end walls is movable towards and away from the other, substantially as described.

a A11 adjustable chill mold tali @estime ngots of aluminium and,V its allow, QO'IH prising in combination a bottom, a, iongi tudinal wall lixedly mounted thereon, a movable longitudinal wall having an offset lower portion seated on the bottom, and movable towards and away from the fixed wall., tvo @mi valles making ioint each with the bottom and with the 'two longitudinal walls and slidable each towardsv and away from the otlier'along the bottom, means for shifting'the movableI longitudinal wall towards the fixed longitudinal wall, and means for shifting the movable longitudinal wall away from the fixed longitudinalr wall, substantially'as described.

3. An adjustable'mold for casting ingots of aluminium and its alloys, comprising in combination abo'ttom and a fixedlongitudinal kwall integral therewith, a movable longitudinal wall having an oifset lower portion seated on the bott-om and movable thereon towards and away from the said fixed wall, and two end walls making joint each with thedbottom and with said longitudinal walls,

one of which end walls is movable on the T bottom towards and Yaway from the other end wall substantially as described.

`In testimony whereof, I affix my signa- MAXIMILIAN ANGrST,

Images