Metal casting unit
First Claim
1. In a molten metal casting apparatus of the type wherein an annular metal casting unit is supported in an aperture in a casting table to form an open ended metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the casting unit at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively retractable support for the molten metal body as it progressively emerges from the unit and elongates along the axis of the table, and wherein moreover, the metal casting unit has an opening formed therein about the molten metal body, and means formed thereabout in the apparatus for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the unit and elongates along the axis of the table,the improvement whereinthe metal casting unit comprises an annular mold which is formed as a monolithic body of mold forming material having a vertical axis, upper and lower ends, an aperture between the ends thereof on the mold body axis, and an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body,the mold body is telescopically inserted in the aperture of the table coaxially thereof, to form the casting station, and is abutted against the table at the flange thereof, to receive support from the table,the mold body has angularly spaced guide means about the axis thereof, which are monolithically outstanding in the same material on the lower end portion of the mold body in the aperture thereof, to mate with the stool in the stage preliminary to the casting operation,the mold body has angularly spaced ports about the axis thereof, which are recessed in the outer periphery of the mold body to interface with the liquid coolant discharge means, and to open into the aperture of the mold body between the guide means and the upper end portion of the mold body during the casting operation, so that the liquid coolant discharges through the ports into the lower end portion of the mold body to direct cool the molten metal body as it emerges from the upper end portion of the mold body and elongates along the axis thereof, andthe mold body is engaged with the table in an annulus about the axis of the table, the annulus has a fluid supply connection thereacross between the mold body and the table, and the mold body has an additional opening in one end portion thereof, and a fluid flow passage therewithin which is interconnected between the fluid supply connection and the additional opening to transmit fluid to the additional opening from the connection for discharge from the mold body, relatively outside thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A casting unit 6 consists of a monolithic body which is annular in shape and has an annular flange 72 outturned about the axis and monolithically outstanding on the body at the outer periphery, a set of lugs 110 angularly spaced about the axis on the lower end portion of the body and monolithically outstanding in the aperture, and a circumferential groove 114 about the outer periphery of the body in the upper end portion, with mullions 20 monolithically upstanding therein, adjacent the outer periphery of the groove, to form ports 112.The groove is interconnected with the cavity 108 in the lower end portion of the body at the aperture; and passages, 126, 140, a graphite ring 16, and whatever else is required, are added to complete the unit 6 before it is supported in an aperture in a metal casting table 2, having liquid coolant discharge means 14 circumposed thereabout and a stool to support molten metal after being mated with the lugs. Where the liquid coolant discharge means take the form of a liquid coolant box, the housing 22, 24 of which defines the table, and the casting unit is upwardly inserted in the box, at an aperture 26 in the bottom, and abutted with the top of the chamber 14, a device 17 is provided for sensing leakage between the casting unit and the top of the chamber. The leakage is discharged in a passage 140 passing through one of the mullions to the bottom of the casting unit.
19 Citations
52 Claims
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1. In a molten metal casting apparatus of the type wherein an annular metal casting unit is supported in an aperture in a casting table to form an open ended metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the casting unit at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively retractable support for the molten metal body as it progressively emerges from the unit and elongates along the axis of the table, and wherein moreover, the metal casting unit has an opening formed therein about the molten metal body, and means formed thereabout in the apparatus for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the unit and elongates along the axis of the table,
the improvement wherein the metal casting unit comprises an annular mold which is formed as a monolithic body of mold forming material having a vertical axis, upper and lower ends, an aperture between the ends thereof on the mold body axis, and an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body, the mold body is telescopically inserted in the aperture of the table coaxially thereof, to form the casting station, and is abutted against the table at the flange thereof, to receive support from the table, the mold body has angularly spaced guide means about the axis thereof, which are monolithically outstanding in the same material on the lower end portion of the mold body in the aperture thereof, to mate with the stool in the stage preliminary to the casting operation, the mold body has angularly spaced ports about the axis thereof, which are recessed in the outer periphery of the mold body to interface with the liquid coolant discharge means, and to open into the aperture of the mold body between the guide means and the upper end portion of the mold body during the casting operation, so that the liquid coolant discharges through the ports into the lower end portion of the mold body to direct cool the molten metal body as it emerges from the upper end portion of the mold body and elongates along the axis thereof, and the mold body is engaged with the table in an annulus about the axis of the table, the annulus has a fluid supply connection thereacross between the mold body and the table, and the mold body has an additional opening in one end portion thereof, and a fluid flow passage therewithin which is interconnected between the fluid supply connection and the additional opening to transmit fluid to the additional opening from the connection for discharge from the mold body, relatively outside thereof.
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11. In a molten metal casting apparatus of the type wherein an annular metal casting unit is supported in an aperture in a casting table to form an open ended metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the casting unit at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively retractable support for the molten metal body as it progressively emerges from the unit and elongates along the axis of the table, and wherein moreover, the metal casting unit has an opening formed therein about the molten metal body, and means formed thereabout in the apparatus for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the unit and elongates along the axis of the table,
the improvement wherein the metal casting unit comprises an annular mold which is formed as a monolithic body of mold forming material having a vertical axis, upper and lower ends, an aperture between the ends thereof on the mold body axis, and an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body, the mold body is telescopically inserted in the aperture of the table coaxially thereof, to form the casting station, and is abutted against the table at the flange thereof, to receive support from the table, the mold body has annular surfaces extending about the axis thereof at the inner peripheries of the upper and lower end portions of the mold body, respectively, which define an open ended upper cavity in the aperture thereof, having a cross sectional configuration in first planes transverse the axis of the mold body corresponding to the cross sectional configuration of the molten metal body to be cast therein, and an open ended lower cavity in the aperture of the mold body, having a cross sectional configuration in second planes transverse the axis of the mold body corresponding to the cross sectional configuration of the upper cavity, but greater in cross sectional area than that of the upper cavity in each of said second planes so as to provide an annulus of open air about the molten metal body as it emerges from the upper cavity and elongates along the axis of the mold body in the lower cavity, the mold body has guide means which are angularly spaced about the axis thereof, and monolithically outstanding in the same material on the lower end portion of the mold body in the lower cavity of the aperture therein, to mate with the stool in the stage preliminary to the casting operation, the mold body has a series of closely spaced holes in the inner peripheral portion thereof, which are generally symmetrically arrayed about the axis of the mold body to terminate at the inner periphery thereof and open into the lower cavity in the aperture of the mold body between the guide means and the upper cavity in the aperture of the mold body, the mold body has an annular passage therein which extends about the axis of the mold body and opens into the series of holes, and the mold body has a series of angularly spaced ports arrayed about the axis thereof, which are recessed in the mold body at the outer periphery thereof to interface with the liquid coolant discharge means, and which open into the annular passage in the mold body to discharge the liquid coolant into the annulus through the series of holes and direct cool the molten metal body when it has emerged from the upper cavity in the aperture of the mold body and is elongating along the axis thereof.
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18. In a molten metal casting apparatus wherein an annular metal casting unit with an annular flange relatively outturned thereabout, is inserted in a liquid coolant box to form an open ended metal casting station about a vertical axis of the box, the box has top and bottom plate-like housing members, a chamber for the liquid coolant between the housing members, and mutually opposing top and bottom apertures in the members on the axis, the annular casting unit is telescopically inserted in the chamber through the bottom aperture in the box, abutted against the bottom housing member at the flange thereof, and engaged with the top housing member in an annulus about the top aperture therein, and means are provided in the annulus to provide a pair of annular seals thereabout in circumferentially extending lines of the annulus which are relatively radially spaced apart from one another about the axis of the box and relatively offset from one another axially of the box,
the improvement wherein: the metal casting unit has an opening in the lower end portion thereof, a port in the upper end portion thereof which opens into the annulus between the annular seals formed thereabout, and a fluid flow passage therein which is interconnected between the port and the opening to discharge to the opening, liquid coolant that leaks from the chamber past the relatively radially outer seal of the annulus in the direction of the axis of the box, before the leakage coolant can penetrate the relatively radially inner seal of the annulus. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An annular mold for insertion in an aperture in a metal casting table to form an open ended molten metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the mold at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively reciprocable support for the molten metal body as it progressively emerges from the mold and elongates along the axis of the table, and wherein moreover, the mold has an opening formed therein about the molten metal body, and means formed thereabout on the table for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the mold and elongates along the axis of the table, comprising:
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a monolithic body of mold forming material having a vertical axis, upper and lower ends, and an aperture between the ends thereof on the mold body axis, the mold body having an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body to abut the table and receive support therefrom when the mold is inserted in the aperture of the table coaxially thereof, to form the station, the mold body having annular surfaces extending about the axis thereof at the inner peripheries of the upper and lower end portions of the mold body, respectively, which define an open ended upper cavity in the aperture thereof, having a cross sectional configuration in first planes transverse the axis of the mold body corresponding to the cross sectional configuration of the molten metal body to be cast therein, and an open ended lower cavity in the aperture of the mold body, having a cross sectional configuration in second planes transverse the axis of the mod body corresponding to the cross sectional configuration of the upper cavity, but greater in cross sectional area than that of the upper cavity in each of said second planes so that in the casting operation an annulus of open air is provided about the molten metal body as it emerges from the upper cavity and elongates along the axis of the mold body in the lower cavity, the mold body having guide means which are angularly spaced about the axis thereof, and monolithically outstanding in the same material on the lower end portion of the mold body in the lower cavity of the aperture therein, to mate with the stool in the stage preliminary to the casting operation, the mold body having a series of closely spaced holes in the inner peripheral portion thereof, which are generally symmetrically arrayed about the axis of the mold body to terminate at the inner periphery thereof and open into the lower cavity in the aperture of the mold body between the guide means and the upper cavity in the aperture of the mold body, the mold body having an annular passage therein which extends about the axis of the mold body and opens into the series of holes, and the mold body having a series of angularly spaced ports arrayed about the axis thereof, which are recessed in the mold body at the outer periphery thereof to interface with the liquid coolant discharge means during the casting operation, and which open into the annular passage in the mold body to discharge the liquid coolant into the annulus through the series of holes and direct cool the molten metal body when it has emerged from the upper cavity in the aperture of the mold body and is elongating along the axis thereof. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. In an annular molten metal casting unit for insertion in an aperture in a metal casting table to form an open ended molten metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the metal casting unit at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively reciprocable support for the molten metal body as it progressively emerges from the metal casting unit and elongates along the axis of the table, and wherein moreover, the metal casting unit has an opening formed therein about the molten metal body, and means formed thereabout on the table for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the metal casting unit and elongates along the axis of the table,
an annular mold which is formed as a monolithic body of mold forming material having a vertical axis, upper and lower ends, an aperture between the ends thereof on the mold body axis, and an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body, to abut the table and receive support therefrom when the metal casting unit is inserted in the aperture of the table coaxially thereof, to form the station, the mold body having annular surfaces extending about the axis thereof at the inner peripheries of the upper and lower end portions of the mold body, respectively, which define an open ended upper cavity in the aperture thereof, having a cross sectional configuration in first planes transverse the axis of the mold body corresponding to the cross sectional configuration of the molten metal body to be cast therein, and an open ended lower cavity in the aperture of the mold body, having a cross sectional configuration in second planes transverse the axis of the mold body corresponding to the cross sectional configuration of the upper cavity, but greater in cross sectional area than that of the upper cavity in each of said second planes so that in the casting operation an annulus of open air is provided about the molten metal body as it emerges from the upper cavity and elongates along the axis of the mold body in the lower cavity, the mold body having guide means which are angularly spaced about the axis thereof, and monolithically outstanding in the same material on the lower end portion of the mold body in the lower cavity of the aperture therein, to mate with the stool in the stage preliminary to the casting operation, the mold body having a series of closely spaced holes in the inner peripheral portion thereof, which are generally symmetrically arrayed about the axis of the mold body to terminate at the inner periphery thereof and open into the lower cavity in the aperture of the mold body between the guide means and the upper cavity in the aperture of the mold body, the mold body having an annular passage therein which extends about the axis of the mold body and opens into the series of holes, the mold body having a series of angularly spaced ports arrayed about the axis thereof, which are recessed in the mold body at the outer periphery thereof to interface with the liquid coolant discharge means during the casting operation, and which open into the annular passage in the mold body to discharge the liquid coolant into the annulus through the series of holes and direct cool the molten metal body when it has emerged from the upper cavity in the aperture of the mold body and is elongating along the axis thereof, and an annular baffle which is sleeved about the series of ports in the mold body and has a series of holes symmetrically arrayed thereabout to meter the coolant flow into the ports from the liquid coolant discharge means.
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43. In an annular molten metal casting unit for insertion in an aperture in a metal casting table to form an open ended molten metal casting station thereon through which the molten metal to be cast is poured along a vertical axis of the table and cast into a molten metal body, and wherein during the casting procedure, the casting station has a stool operatively disposed therebelow on the axis of the table to telescopically engage with the bottom of the metal casting unit at a stage preliminary to the casting operation, and then in the operation itself, to provide a relatively reciprocable support for the molten metal body as it progressively emerges from the metal casting unit and elongates along the axis of the table, and wherein moreover, the metal casting unit has an opening formed therein about the molten metal body, and means formed thereabout on the table for discharging liquid coolant through the opening to direct cool the molten metal body as it emerges from the metal casting unit and elongates along the axis of the table,
an annular mold which is formed as a monolithic body of mold forming material having a vertical axis, upper and lower ends, an aperture between the ends thereof on the mold body axis, and an annular flange which is relatively outturned about the mold body axis, and monolithically outstanding in the same material at the outer periphery of the mold body, to abut the table and receive support therefrom when the metal casting unit is inserted in the aperture of the table coaxially thereof, to form the station, the mold body having angularly spaced guide means about the axis thereof, which are monolithically outstanding in the same material on the lower end portion of the mold body in the aperture thereof, to mate with the stool in the stage preliminary to the casting operation, angularly spaced ports about the axis thereof which are recessed in the outer periphery of the mold body to interface with the liquid coolant discharge means, and to open into the aperture of the mold body between the guide means and the upper end portion of the mold body during the casting operation, so that the liquid coolant can discharge through the ports to direct cool the molten metal body as it emerges from the upper end portion of the mold body and elongates along the axis thereof, a pair of first and second additional openings in the upper and lower end portions of the mold body, respectively, and a fluid flow passage in the mold body, which is interconnected between the first and second additional openings to transmit fluid from one additional opening to the other for discharge from the mold body, relatively outside thereof,
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47. In a molten metal casting apparatus having a pair of fluid flow openings therein and a fluid flow passage therebetween which is connected with the pair of openings to deliver liquid to one opening from the other,
a device for detecting liquid flow in the passage comprising: a liquid receptacle which is in communication with the passage, to receive a portion of the liquid flow therein, and has indicator means thereon including a transparent window which is exposed relatively outside of the apparatus for viewing by an operator thereof, so that the portion of liquid flow in the receptacle is made visually apparent to the operator through the window of the receptacle. - View Dependent Claims (48, 49, 50, 51, 52)
Specification