US3163897A - Method and apparatus for casting metal articles - Google Patents

Method and apparatus for casting metal articles Download PDF

Info

Publication number
US3163897A
US3163897A US196264A US19626462A US3163897A US 3163897 A US3163897 A US 3163897A US 196264 A US196264 A US 196264A US 19626462 A US19626462 A US 19626462A US 3163897 A US3163897 A US 3163897A
Authority
US
United States
Prior art keywords
pouring tube
conduit
ladle
pouring
molten metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US196264A
Other languages
English (en)
Inventor
Edmund Q Sylvester
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amsted Industries Inc
Original Assignee
Amsted Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE632116D priority Critical patent/BE632116A/xx
Application filed by Amsted Industries Inc filed Critical Amsted Industries Inc
Priority to US196264A priority patent/US3163897A/en
Priority to GB19066/63A priority patent/GB1033066A/en
Priority to FR934977A priority patent/FR1357939A/fr
Priority to CH623463A priority patent/CH404876A/de
Application granted granted Critical
Publication of US3163897A publication Critical patent/US3163897A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/44—Consumable closure means, i.e. closure means being used only once
    • B22D41/48—Meltable closures

Definitions

  • This invention relates generally to the art of casting of metals and more specifically to a method and apparatus for pressure pouring of metal articles.
  • Various forms of apparatus have been proposed for the pressure pouring of molten metal.
  • One of these, for example, is the provision of a pressurized ladle structure having a generally vertically extending pouring tube externally of and in communication with the metal-conraining chamber of the ladle body.
  • a pressurized ladle structure having a generally vertically extending pouring tube externally of and in communication with the metal-conraining chamber of the ladle body.
  • the metal-containing chamber of the ladle body is normally of a size sufiicient for the containment of that quantity of molten metal which will fill a plurality of successive mold cavities.
  • an object of this invention is to provide a method of pressure pouring metal articles whereby the freezing of molten metal within the pouring tube is prevented.
  • Another object of this invention is to provide means for at times displacing the molten metal from the pouring tube so as to substantially reduce the rate of cooling of the molten metal.
  • a still further object of this invention is to provide means for at times displacing the molten metal from the pouring tube in a manner permitting the connection of a mold and gate assembly to said pouring tube without the necessity of first disconnecting said means.
  • FIGURE 1 is a vertical cross-sectional view of a ladle structure, embodying the invention, in combination with a suitable mold assembly;
  • FIGURE 2 is an enlarged fragmentary cross-sectional 7 3,163,897 Fatented Jan. 5, 1965 view illustrating in greater detail a portion of the pouring tube assembly shown in FIGURE 1;
  • FIGURE 3 is a view, similar to that of FIGURE 2, illustrating a second embodiment of the invention
  • FEGURE 4 is a perspective View, with a portion thereof broken away, illustrating in greater detail one of the elements comprising the invention as disclosed in FIG- URE 3;
  • FIGURE 5 is a view, similar to that of FIGURES 2 and 3, illustrating a third embodiment of the invention
  • FEGURE 6 is a fragmentary cross-sectional view illustrating an arrangement for passing a-pressure conduit through the Wall defining the chamber containing the ladle assembly;
  • FIGURE 7 is a fragmentary cross-sectional View taken substantially on the plane of line 7-7 of FIGURE 6 and looking in the direction of the arrows;
  • FIGURE 8 is a view illustrating one arrangement for connecting a source of superatmospheric fluid pressure to the pouring conduits of either FIGURES 2, 3 or 5;
  • FlGURE 9 is an enlarged cross-sectional View of one of the elements shown in FIGURE 8.
  • FIG- URE 1 illustrates a pressure pouring ladle assembly 10 comprised of a ladle body 12 and a pouring tube assembly is, suitably secured thereto, located in a pit 16 defined generally by a Wall member 18.
  • the ladle body 12 may be comprised of firebrick 2i lining the inner walls of an outer container 22 so as to define a chamber 24 for the reception of molten metal therein.
  • the pouring tube assembly 14, comprised of an outer casing 26 containing clay tile 28 surrounded by sand Ed in a manner defining a conduit 32, may be secured by any suitable means to the container 22 as at 34.
  • the lower portion of chamber 24 is brought into communication with conduit 32 by means of a conduit portion 35 formed generally by the firebrick 20 of the ladle 12.
  • a cover assembly 38 having a flange 40 secured to a' downwardly depending cylindrical portion 42, is secured in sealing engagement to the Wall member 13 as by means of a seal member 44. Any suitable clamping devices may, of course, be employed for retaining the cover assembly in such engagement.
  • a bellows member 46 sealingly secured at its upper end to the cover assembly 33 also serves to seal the'charnber of pit 16 from the ambient atomsphere by resiliently urging the seal member 5@ into engagement with the radially extending flange 48 formed on the pouring tube 14.
  • a suitable gate and mold assembly 52 is shown as being connected to'the top of the pouring tube 14.
  • FIGURE 2 illustrates the upper end 54 of the pouring tube as being formed to provide an annular pouring head 56 suitably secured to a radial flange portion 58 formedon the outer casing 26
  • the pouring head 56 is provided with an outer conical surface adapted to mate with a generally conical recess 62 formed in the lower portion of the mold and gate assembly 52.
  • a castable refractory 64 may be placed atop the sand mixture 3t? in a manner forming a ring between the clay tile 28 and pouring head 56.
  • An aluminum disc 66 is generally peripherally retained to the top of head 56 by means of an annular nut member 63 which is threadably engaged with pouring head 56.
  • Nut 68 may be provided with oppositely disposed notches or slots '76? and '72 in order to enable assembly thereof as by means of a spanner wrench.
  • An annular gasket 74 preferably comprised of asbestos, is provided atop disc 66 so as to experience a calculated range of compression between disc 66 and surface 'idwhen the mold and gate assembly 52 is assembled to the pouring tube 14.
  • a conduit 78 communicating at its one end with a suitable source 89, of fluid pressure has its other end terminating in surface 82 of head 56 against which the disc 66 is retained by nut 63.
  • ladle assembly 18 is, empty and: transported to a suitable station for filling. At this time the top end 54 of the pour.- ing tub would be open to the atmosphere.
  • the aluminum disc or cap 66 After the ladle chamberwas filled to a predetermined level with molten metal, the aluminum disc or cap 66 would be placed atop pouring head 56 and secured thereto by meansof nut 68, thereby sealing the upper end of the pouring tube from the ambient atmosphere. Conduit 78- would then be operatively connected to a source of fluidpressure 80ers by means of suitable conduitry 84 and valving means, 86 which valving means would then be opened so as to allow relatively high pressure gas to flow into conduit 73. Consequently, the alurninum disc 66 is. caused to bow upwardly a slightarnountallowing communication between conduit 78 and pouring conduit 32. The application of such high --pressure gas is continued until such time as when substantially allthe molten metalwith-in the pouring tube is forced into chamber 24 at which time the gas pressure is maintained only to the point to maintain equilibrium.
  • the filled ladle assembly may then be transported to and lowered into a suitable pit 16 and sealed therein with cover assembly 38.
  • the mold and gate assembly 52 is then connected to the upper end 54 of the pouring tube assembly 1.4 as shown by both FIGURES l and 2.
  • the pouring tube conduit is preferably continuously maintainediunder pressure thereby keeping substantially all the molten metal outof conduit 32;
  • conduit 32 When pressure; casting is desired, the previously created pressure within conduit 32; is first relieved thereby allowing-the molten metalwithin chamber 24 to gravitationally flow into conduit 32 until a balance of levels is attained; Next, superatmospheric gas pressure is admitted to pit 16 by means of suitable conduitry 88, valve means 9t and a source of, fluid pressure 92.
  • FIGURE 3 is a modification of the invention and all elements which are like or similar to those of FIGURES 1 and 2 are identified with like reference numbers.
  • a pouring head 96 is provided with an annular groove 98 formed generally. in the conical surface 100.
  • Cover 102 is also provided with an inwardly directed radially extending flange portion 168, which may be formed at time of assembly to the pouring head 96, and a generally downwardly depending hook portion 11%, of annular cross-section, adapted to be engaged by a preferably resilient annular seal 112
  • a metallic retaining strap 114 may also be provided to urge the seal 112 and hook portion 110 inwardly towards the inner surface 116 of the groove 98.
  • FIGURE 4 illustrates, by way of example, one form which the cover 102 may assume prior to assembly to. pouring head 96.
  • Cover 102v is shown with a fragmem tar y portion thereof broken away in order to better illusirate the relationship between the various portions com-. prising the cover. That is, portion 104. is preferably formed so as to closely approximate the slope and size; of the conical surface 109 while portion 108 is formed to. allow the upper outer diameter 1180f groove 98.to.freely pass thcrethrough.
  • a plurality of slots 129, of which two are shown, may be formed through both'portions 108 and 119 in order to facilitate athering of the material. as portion 1% is bent under. groove 93 as illustrated in FIGURE 3 upon assembly tothe pouring head 96.
  • FIGURES 6-9 illustrate arrangements permitting continuous communication between the source of high pressure and pouring conduit 32 even during the time in which the cover 42 is being assembled to the wall structure 18.
  • FIGURES 6 and. 7 illustrate the wall member 18 and cover assembly 38- as being formed to provide arcuate portions 132 and 134 so as to receive conduit 84 therebetween.
  • a reinforcing ring member 136 sealingly secured to conduit 84 provides an abutting surface for a resilient annular seal 138 as it is compressed radially inwardly by portions 132 and 134 of cover assembly 38 and wall member 18, respectively.
  • Conduit 84 may also be provided with a flange 140 which, after assembly, abuts against the inner surfaces of arcuate portions 132 and 134thereby. preventing accidental withdrawal of conduit. 84 and seal 138.
  • FIGURES 6 and 7 enables the capped ladle assembly to be lowered into pit 16 and the cover assembly 38 secured to wall member 18 without having to in any way disengage conduit 84 from either conduit 78- or source 80.
  • FIGURE 8 illustratesanother arrangement for enabling continuous communication between conduit 32 and pressure source 80 during such periods as when, the cover assembly 38 is being lowered onto Wall member 18 and about pouring tube assembly 14.
  • a conduit. 142 operatively connected to pressure source 80, is provided with branch conduits 144 and 146 containing flow control valve assemblies 148 and 150,'respective1y.
  • Conduits 144- and 146 each equipped with coupling members 152, are intended to be selectively connected to an inlet assembly 154 at the lower end of the extension of conduit 78.
  • Inlet assembly 154 is comprised of a body 156 containing a conduit 158 formed therethrough and provided with seating surfaces 160 and 162 which cooperate with ball valve members 164 and 166, respectively; Biasing springs 168 and 170 may be provided in order to assure seating of valve members 164 and 166.
  • Conduit 172 completes communication between conduits 158 and 78.
  • Externally threaded projections 174 and 176 are provided for connection to couplers 152 of conduits 144 and 146.
  • conduit 146 After cap 162 was secured to the pouring tube 14, conduit 146 would be connected to inlet assembly 154, as by means of threaded portion 176, and valve 150 opened thereby allowing the high pressure gas of source 89 to unseat valve member 166 and pressurize pouring conduit 32. During this time, conduit 144 would be disconnected and valve 148 maintained closed.
  • Ladle assembly 16 with conduit 146 connected thereto may then be lowered into pit 16, as shown in FIGURE 1, and cover assembly 33 brought into position for the reception of pouring tube 14 therethrough.
  • conduit portion 144 may be brought over the top of cover 38 and connected to threaded portion 174 of the inlet assembly 154 and valve 148 opened.
  • Valve 159 is then closed, conduit 146 disconnected from inlet 154 and the cover assembly lowered onto and secured to wall member 18.
  • Valve members 164 and 166 act as check valves thereby preventing reverse flow therethrough whenever either conduit 144 or 146 is disconnected from inlet 154.
  • a valve 178, serially connected with conduit 78, is provided for at times venting conduit 78 and pouring conduit 32 to the atmosphere.
  • a valve such as 178 or the functional equivalent thereof may be provided for each of the embodiments of FIGURES 2, 3 and 5 in order to relieve the pressure within pouring conduit 32 prior to the pressure pouring cycle.
  • the invention has many important advantages.
  • the employment of any of the pouring tube caps or covers as disclosed enables the pouring conduit 32 to be maintained in a continued pressurized state, thereby displacing the molten metal therein, until almost the very instant that pressure pouring of molten metal is initiated. This, of course, is brought prior thereto.
  • the cover could be made of a metal having the same composition as that which is contained within the ladle chamber 24.
  • the primary considerations, of course, are that the cover be made thin enough so as to be capable of at least slightly bowing under pressure and melting when exposed to a heat level which the molten metal 62 is capable of supplying.
  • a method of pressure casting metal articles from a ladle structure having an upwardly extending pouring tube comprising filling the ladle structure with molten metal to a predetermined level, securing suitable sealing means to the upper end of the pouring tube in order to seal said pouring tube from the atmosphere, pressurizing the pouring tube with supereatmospheric pressure until the molten metal within the pouring tube has been sub stant-ially removed therefrom, maintaining said pouring tube in such a pressurized state until a mold assembly is made ready to be placed into pouring engagement with said pouring tube, reducing the pressure within the pouring tube until it reaches substantially atmospheric pressure, and applying superatmospheric pressure to said ladle structure in order to force the molten metal out of said ladle structure upwardly through said pouring tube and disintegrate said sealing means and flowtherethrough so as to fill said mold assembly.
  • a method of pressure casting metal articles from a ladle structure having an upwardly extending pouring tube comprising filling the ladle structure with molten metal to a predetermined level, securing suitable fusible sealing means to the upper end of the pouring tube in order to seal said pouring tube from the atmosphere, pressurizing the pouring tube with superatmospheric pressure so as to force molten metal from the pouring tube and into the ladle structure, maintaining said pouring tube in such a pressurized state until a mold assembly is made ready to be placed into pouring engagement with said pouring tube, reducing the superatmospheric pres-- sure within the pouring tube and applying superatmos pheric pressure to said ladle structure in order to force the molten metal out of said ladle structure upwardly through said pouring tube and fuse said sealing means and flow therethrough so as to fill said mold assembly.
  • a ladle assembly comprising a ladle body, a chamber formed within said ladle body containing molten metal therein, a pouring tube assembly formed externally of said ladle body having an upwardly directed open end and a lower end communicating with a lower portion of said chamber, a sealing member secured atop said open upper end sealing the interior of said pouring tube assembly from the atmosphere, said sealing member being relatively thin and readily fusible by the molten metal, first conduit means communicating between the interior of said pouring tub-e assembly and a source of superatmospher-ic pressure for at times directing superatmospheric pressure to the interior of said pouring tube assembly, an outer container for receiving said ladle body and pouring tube assembly, a cover member adapted to receive therethrough said upper end of said pouring tube and adapted to be secured in sealing engagement with both said outer container and said pouring tube, a mold assembly functionally engaging said upper end of said pouring tube assembly, and second conduit means communicating with said source of super
  • a ladle assembly comprising a ladle body, a chamber formed Within said ladle body containing molten metal therein, a pouring tube assembly having a passage therein and having an upwardly directed open end and a lower end communicating with a lower portion of said chamber, a fusible sealing member secured atop said open upper end sealing the interior of said pouring tube assembly from the atmosphere, said sealing member having a limited degree of flexibility and engaging the marginal portion of the pouring tube around the passage therein, first conduit means extending through said marginal portion of the pouring tube and thereby communicating with the interior.
  • said pouring tube assembly also communicating with a source of superatmospheric pressure, the superatmospheric pressure being effective for flexing said sealing member whereby to enable pressure to be directed under the sea-ling member and into the interior of said pouring tube assembly, a mold assembly functionally engaging with said upper end of said pouring tube assembly, and second conduit means communicating with said source of superatrnospheric pressure for at times directing said superatmospheric pressure to said molten metal within said chamber so as to force said molten metal out of said chamber upwardly through the pouring tube assembly and said first sealing member into said mold assembly.
  • Apparatus for casting metal comprising a refractory-lined ladle containing molten metal and having an outlet opening formed in the lower portion thereof, a separate generally upright s'pout struoturedefining a refraotor'y-lined pouring conduit having an upper outlet end and a lower inlet end in communication with said outlet opening, first sealing means for sealing said ladle from the ambient atmosphere, second sealing means of relatively low fusion point for sealing said upper outlet end, a mold assembly suitably connected to said upper outlet end, means for at times admitting a first superatmospheric pressure fluid to said pouring conduit sufficient to cause displacement of said molten metal therein, and additional means for subsequently admitting a second superatmospheric pressure fluid against said molten metal Within said ladle in order to cause said molten metal to flow out of said ladle through said conduit and fuse said second sealing means and flow therethrough into said mold assembly.
  • Apparatus for casting metal comprising a refractory-lined ladlescontaining molten metal and having an outlet opening formed in the lower portion thereof, a separate generally upright spout structure defining a refractory-lined pouring conduit having an upper outlet end and a lower inlet end in communication with said outlet opening, a relatively thin flexible aluminum disc sealing said upper outlet end, a mold assembly suitably connected to said upper outlet end, means for at times admitting a first superatmospheric fluid pressure to said pouring conduit sufiicient to depress the level of said molten metal therein, including conduit means opening in said spout structure under said disc, the disc being readily flexed by superatmospher-ic pressure whereby to enable the latter to flow into the pouring conduit, means for venting said first superatmospheric fluid pressure to the atmosphere, and additional means for subsequently admitting a second superatrnosphe'ric fluid pressure against said molten metal within said ladle in order to cause said molten metal
  • a method of pressure pouring cast metal articles with a ladle having an open top and an upwardly extending pouring tube in communication atits lower end with an orifice formed in a lower portion of said ladle comprising rthe steps of filling the ladle with molten metal, securing flexible sealing means to the uppermost end of said upwardly extending pouring tube, creating a first superatmospheric pressure within said pouring tube by tnansmitting it through a conduit, sufficient to substantially depress the level of the molten metal within said pouring tube, utilizing said sealing means for closing said conduit against flow of molten metal thereinto, transporting said filled ladle to a pit and lowering said ladle into said pit so that the uppermost end of said pouring tube projectsa distance thereabove, sealing said pit from the ambient atmosphere, placing a suitable mold structure into functional engagement with said uppermost end of said pouring tube, reducing said first superatmospheric pressure within said pouring tube, and applying a second superatmospheric pressure
  • a ladle assembly comprising a ladle body, a chamber formed within said ladle body containing molten metal therein, a pouring tube assembly formed externally of said ladle body having an upwardly directed open discharge end and a lower inlet end in free communication with a lower portion f said chamber, a sealing arrangemerit for sealing said upper discharge end from the atmosphere, said sealingarrangement comprising a thin metallic disc having one side in abutting relationship to the top of said upper discharge end and positioned so as to be in general axial alignment with said pouring tube, an externally threaded portion formed about the upper discharge end of said pouring tube, an annular retaining nut internally threaded so as to engage said externally threaded portion, an inwardly directed annular flange portion formed on said nut and adapted to engage all annu lar portion of the uppermost side of said disc so as to clamp said disc to the top of said upper discharge end as said nut is brought into complete engagement with said externally
  • a ladle assembly comprising a ladle body, a chamber formed within said ladle body containingmolten metal therein, a pouring tube assembly formed externally of said ladle body. having an upwardly directed open discharge end and a lower inlet end in free communication with a lower portion of said chamber, a sealing arrangement for sealing said upper discharge end from the atmosphere, said sealihg arrangement comprising a thin metallic disc having one side in abutting relationship to the top of said upper discharge end and positioned so as to be in general axial alignment with said pouring tube, an anhular retaining ring placed atop said disc in relatively close proximity to the periphery of said disc, a plurality or clearance holes formed in said ring and spaced generally circumferentially thereab'out, a plurality of tapped holes formed in said upper discharge end in axial alignment with said clearance holes, a plurality of screws received through said clearance holes th're'ad'a'bly engagsembly
  • a ladle assembly comprising a ladle body, a chamber formed within said ladle body containing molten metal therein, a pouring tube assembly formed externally of said ladle body having an upwardly directed open discharge end and a lower inlet end in free communication with a lower portion of said chamber, a sealing arrange- I ment for sealing said'upper discharge end from the atmosphere, said sealing arrangement comprising a thin metallic dish-like member having one side in abutting relationship to the top of said upper discharge end and positioned so as to be in general axial aligment with said pouring tube, an annular groove formed about said pouring tube near the uppermost end thereof, an extending portion formed on said dish-like member adapted to be bent inwardly so as to form a generally inwardly directed radial flange portion received within said annular groove, a generally downwardly depending hook portion formed on said flange portion, a resilient sealing gasket closely received within said annular groove radially outwardly of said hook
  • a method of pressure pouring cast metal articles with a ladle having an open top and an upwardly extending pouring tube in communication at its lower end with an orifice formed in a lower portion of said ladle comprising the steps of filling the ladle with molten metal
  • MICHAEL V. BRINDISI Primary Examiner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US196264A 1962-05-21 1962-05-21 Method and apparatus for casting metal articles Expired - Lifetime US3163897A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE632116D BE632116A (no) 1962-05-21
US196264A US3163897A (en) 1962-05-21 1962-05-21 Method and apparatus for casting metal articles
GB19066/63A GB1033066A (en) 1962-05-21 1963-05-14 Method and apparatus for casting metal articles
FR934977A FR1357939A (fr) 1962-05-21 1963-05-15 Perfectionnements à la coulée sous pression
CH623463A CH404876A (de) 1962-05-21 1963-05-17 Verfahren und Einrichtung zum Druckgiessen von Metall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US196264A US3163897A (en) 1962-05-21 1962-05-21 Method and apparatus for casting metal articles

Publications (1)

Publication Number Publication Date
US3163897A true US3163897A (en) 1965-01-05

Family

ID=22724668

Family Applications (1)

Application Number Title Priority Date Filing Date
US196264A Expired - Lifetime US3163897A (en) 1962-05-21 1962-05-21 Method and apparatus for casting metal articles

Country Status (4)

Country Link
US (1) US3163897A (no)
BE (1) BE632116A (no)
CH (1) CH404876A (no)
GB (1) GB1033066A (no)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265348A (en) * 1964-11-23 1966-08-09 Edmund Q Sylvester Mold purging apparatus and method
US3281903A (en) * 1964-02-03 1966-11-01 Walter C Ross Method and apparatus for continuous horizontal casting
US3298069A (en) * 1965-01-08 1967-01-17 Allegheny Ludlum Steel Sampler
US3322186A (en) * 1964-05-11 1967-05-30 Amsted Ind Inc Pressure pouring apparatus
US3356130A (en) * 1963-04-30 1967-12-05 Mellen Injection molding apparatus for making ceramic cores or the like
US3523684A (en) * 1968-05-31 1970-08-11 United States Steel Corp Vacuum vessel with inlet closure and provision for sealing engagement with teeming ladle
US3655176A (en) * 1969-02-27 1972-04-11 Stoecker & Kunz Gmbh Closure devices for metallurgical and like vessels
US4008749A (en) * 1974-12-24 1977-02-22 Pont-A-Mousson S.A. Method for low-pressure casting in a sand mould
US4133370A (en) * 1974-12-24 1979-01-09 Pont-A-Mousson S.A. Method and apparatus for low-pressure casting in a sand mould
US4356994A (en) * 1978-12-27 1982-11-02 Dyson Refractories Limited Holloware for uphill teeming
US5271539A (en) * 1986-06-09 1993-12-21 Kawasaki Steel Corporation Pressure type automatic pouring furnace for casting
US5465777A (en) * 1994-05-18 1995-11-14 The Budd Company Contact pouring
US6216766B1 (en) * 1994-02-10 2001-04-17 Reynolds Wheels International Ltd. Fluid-tight coupling device for a feeder pipe
US11235381B2 (en) * 2017-05-03 2022-02-01 Ekw Gmbh Pouring nozzle with a replaceable crown

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7514034B2 (en) * 2002-05-31 2009-04-07 Hoei Shokai Co., Ltd. Container capable of transporting molten metal received therein to separate factory and method of producing the container
DE102023106055A1 (de) 2023-03-10 2024-09-12 Fritz Winter Eisengiesserei Gmbh & Co. Kg NIEDERDRUCKGIEßGEFÄß UND VERFAHREN ZU SEINER HERSTELLUNG

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726354A (en) * 1953-04-21 1955-03-16 Griffin Wheel Co Improvements in a casting method and apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726354A (en) * 1953-04-21 1955-03-16 Griffin Wheel Co Improvements in a casting method and apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356130A (en) * 1963-04-30 1967-12-05 Mellen Injection molding apparatus for making ceramic cores or the like
US3281903A (en) * 1964-02-03 1966-11-01 Walter C Ross Method and apparatus for continuous horizontal casting
US3322186A (en) * 1964-05-11 1967-05-30 Amsted Ind Inc Pressure pouring apparatus
US3265348A (en) * 1964-11-23 1966-08-09 Edmund Q Sylvester Mold purging apparatus and method
US3298069A (en) * 1965-01-08 1967-01-17 Allegheny Ludlum Steel Sampler
US3523684A (en) * 1968-05-31 1970-08-11 United States Steel Corp Vacuum vessel with inlet closure and provision for sealing engagement with teeming ladle
US3655176A (en) * 1969-02-27 1972-04-11 Stoecker & Kunz Gmbh Closure devices for metallurgical and like vessels
US4008749A (en) * 1974-12-24 1977-02-22 Pont-A-Mousson S.A. Method for low-pressure casting in a sand mould
US4133370A (en) * 1974-12-24 1979-01-09 Pont-A-Mousson S.A. Method and apparatus for low-pressure casting in a sand mould
US4356994A (en) * 1978-12-27 1982-11-02 Dyson Refractories Limited Holloware for uphill teeming
US5271539A (en) * 1986-06-09 1993-12-21 Kawasaki Steel Corporation Pressure type automatic pouring furnace for casting
US6216766B1 (en) * 1994-02-10 2001-04-17 Reynolds Wheels International Ltd. Fluid-tight coupling device for a feeder pipe
US5465777A (en) * 1994-05-18 1995-11-14 The Budd Company Contact pouring
US11235381B2 (en) * 2017-05-03 2022-02-01 Ekw Gmbh Pouring nozzle with a replaceable crown

Also Published As

Publication number Publication date
CH404876A (de) 1965-12-31
GB1033066A (en) 1966-06-15
BE632116A (no)

Similar Documents

Publication Publication Date Title
US3163897A (en) Method and apparatus for casting metal articles
US3651998A (en) Nozzle for a pouring ladle
US2792262A (en) Pneumatically discharged vessel for pulverulent materials
US2646065A (en) Valve
US3201837A (en) Method and apparatus for casting metal articles
JPH05503680A (ja) シール調和リップを備えた複合ふた
JPS6372983A (ja) シール
GB801519A (en) Improvements relating to sealing means for vacuum vessels
US3485472A (en) Valve means having collapsible elastic sleeve
US3823760A (en) Low pressure die casting apparatus
US4579138A (en) Piston and valve arrangement
US3258147A (en) Vacuum bottles having fillers with plastic liners
US3460725A (en) Apparatus for pouring molten metal
US4143674A (en) Valve for continuously and automatically supplying furnaces with molten metal
CS271101B2 (en) Pressure casting method and device therefor
CA1332506C (en) Feed apparatus for a furnace
US4858672A (en) Countergravity casting apparatus and method
US2708050A (en) Hermetically-sealed container
US2864134A (en) Core blowing machine
US4162795A (en) Sealing device for openings of a container which can be loaded with and emptied of batches of fluid loose material, viscous deposits, sludges or the like
US2599319A (en) Filling and capping equipment
US3523684A (en) Vacuum vessel with inlet closure and provision for sealing engagement with teeming ladle
US3554490A (en) Stopper head for a ladle or similar receptacle
US3572541A (en) Inlet construction for enclosed vessels
CZ200587A3 (cs) Rychlovýmenné uzavírací zarízení pro plnící trubice