US2521753A

US2521753A - Liquid cooled nonferrous permanent mold casting unit

Info

Publication number: US2521753A
Application number: US21543A
Authority: US
Inventors: Clarence R Shook; Philip B Neisser
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-04-16
Filing date: 1948-04-16
Publication date: 1950-09-12
Anticipated expiration: 1967-09-12

Description

Sept. 12, 1950 c. R. SHOCK mL 2,521,153

LIQUID COOLED OUS PERMANENT NONFERR MOLD CASTING UNIT Filed April 16, 1948 4 Sheets-Sheet 1 5 ll'nl 4 Sheets-Sheet 2 {g INVEN o BY @213 6 mm,

4 Arrow/5r 4 Sept. 12, 1950 c. R. SHOOK ETAL LIQUID COOLED NONFERROUS PERMANENT MOLD CASTING UNIT Filed Apnl 16 1948 Fig. 2

Sept. 12, 1950 c. R. SHOOK ETAL 2,521,753

LIQUID COOLED NONFERROUS PERMANENT MOLD CASTING UNIT Filed April 16, 1948 4 Sheets-Sheet 3 Patented Sept. 12, 1950 LIQUIn oooLEb'NoNFERRous PERMANENT Mo ncAsnNo UNIT Clarence R. Shook, Glenside,- and Philip B.

- Neisse'l', Lafayette Hill, Pa.

Application s, 1948, Serial No. 21,543

v 1 Claim. (01. 22 -77) (Gratin under the act of Mariel;- 3,1883, is

amended April 30, 1928; 370 "O. G. 757) The invention described herein may be manufactured and used by or for the Government of the United States for governmental purposes without the payment to us of any royalty thereon in accordance with the provisions of the act of April 30, 1928 (ch. 460, 45 Stat. L. 467).

Our invention relates to a method and apparatus for casting by means of which truly uniform cast ingots or the like may be automatically and continuously produced with controlled duo-- tility and grain size together with avoidance of segregation, flaws and internal strains, which is particularly adapted for the continuous casting of high melting point metals and alloys.

In the accompanying drawings which are illustrativ-e of a preferred form of our invention:

Figure 1 is an elevation of our apparatus.

Figure 2 is a perspective view of one of our two part'metal molds in ingot discharging position, with the movable part shown in vertical cross section to show the construction.

Figure 3 is a diagrammatic representation of the cooling system.

Figure 4 is a side elevation of means for filling one of our molds with molten metal, a mold being indicated by dotted lines.

Figure 5 is a cross section of Figure 4, with our volume control unit in discharging position.

In these drawings:

A turntable Ill supports our apparatus which includes a plurality of identical molds each formed of a relatively reciprocable section II and a relatively stationary section l2; each section is provided with substantially identical casting cavities I3 and I4, and the two sections are held in exact alignment by four parallel supporting rods i5 on which the section l is reciprocated from closed to open position by a revolvable cam It. The mold sections H and |2 are cored to provide a coolant receiving chamber |l, I8 through which flows temperature regulated coolant from inlet pipes I!) and 2|! and outlet pipes 2| and 22 to a spider 23 to a cooling heat exchanger 24, thence to a storage tank 25 from which it is withdrawn by a circulating pump 23. An electrically driven fan 21 directs cooling air against the heat exchanger 24. A thermostat 28 controls the motor of the fan 21. Coolant in the tank 25 is: initially brought to a predetermined operating temperature by a suitable heater 31!, which may be. a gas burner.

Each mold in succession is rotated with the turntable It to the casting position where a tilting furnace 3| (Figure 1) pours molten metal into a volume control unit 32 having substantially the same capacity as that of the mold. The capacity of the volume control unit 32 is regulated by adjusting the depth of a channel 33 in a boss 34 (Figure 4) on a side of this unit. Any excess metal is discharged through this channel into a suitable spill box provided for that purpose. The volume control unit 32 is supported on two trunnions 31 and 39 which seat consecutively into

open bearings

33 and 38. As the rack 45 is raised by the pinion 44, the volume control unit 32 is tilted on trunnion '31, until trunnion 3'9 engages in bearing 38. This movement draws the volume control unit 32 away from the furnace 3|, and thereby clears a pouring lip of the furnace 3| as the volume control unit 32 is further tilted. When the trunnion 39 engages in bearing 38, the weight of the volume control unit 32 is transferred from the trunnion 31 to trunnion 39. A floating link 40 accommodates the dual rotation and change of centers as the volume control unit 3?. axis of rotation is changed. The volume control unit 32 is filled to capacity from the furnace 3| and is then tilted by suitable means, such as a hand wheel 29, which rotates a pinion 44 in mesh with a rack 45, to pour its contents into a teeming box 35 which feeds molten metal into a mold positioned immediately beneath. Whil the teeming box 35 is being discharged, the volume control unit 32 is returned to the initial position where it is refilled for the next casting operation. The rate of pour from the teeming box 35 depends upon the size and number of holes 45 drilled in the bottom of the teeming box 35.

The proper temperature of the molten metal in the volume control unit 32 and the teeming box 35 is maintained by suitable gas burners, this temperature varying with the alloy being worked.

4| indicates two of a set of four casters, or car Wheels, mounted in brackets 47 on the under side of a supporting member 48 on which the turntable I0 is revolubly mounted. These casters travel on a suitable track 42 passing in front of a plurality of furnaces and serve to support the entire casting unit when moved from furnace to furnace. The number of furnaces this casting unit will serve is determined by the melting cycle and the casting time.

43 indicates a collector ring by means of which the necessary electric current is brought to: the revolvable casting unit for operating the necessary motors.

While we have shown and described a preferred embodiment of our invention, changes may be 3 made in the construction and arrangement without departing from the spirit and scope of the invention as disclosed herein.

What we claim is:

In a casting machine for receiving metal from 5 a plurality of stationaryfurnaces, the combination comprising a support having on its under side wheels adapted to run on a track passing a radiator for removing from the water the heat 15 introduced by its passage through the molds.

CLARENCE R. SHOOK. PI-DLIP B: NEISSER;

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name I Date 666,075 Vernon Jan. 15, 1901 912,228 Bunau-Varilla Feb. 9, 1909 928,246 Cline July 20, 1909 1,021,543 McKelvey Mar. 26, 1912 1,031,585 Rees et al. July 2, 1912 1,643,780 Lee Sept. 27, 1927 1,894,982 Eppensteiner Jan. 24, 1933 1,909,773 Lewin May 16, 1933 1,917,872 Campbell July 11, 1933 2,030,482 Summey Feb. 11, 1936 2,134,827

Huck Nov. 1, 1938