US3162909A - Apparatus for pressure pouring articles - Google Patents

Apparatus for pressure pouring articles Download PDF

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Publication number
US3162909A
US3162909A US147631A US14763161A US3162909A US 3162909 A US3162909 A US 3162909A US 147631 A US147631 A US 147631A US 14763161 A US14763161 A US 14763161A US 3162909 A US3162909 A US 3162909A
Authority
US
United States
Prior art keywords
assembly
secured
pouring tube
pouring
ladle
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
US147631A
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English (en)
Inventor
Sylvester Edmund Quincy
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.)
Griffin Wheel Co Inc
Original Assignee
Griffin Wheel Co 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 BE632115D priority Critical patent/BE632115A/xx
Application filed by Griffin Wheel Co Inc filed Critical Griffin Wheel Co Inc
Priority to US147631A priority patent/US3162909A/en
Priority to GB29855/64A priority patent/GB983822A/en
Priority to GB19067/63A priority patent/GB983821A/en
Priority to FR934976A priority patent/FR1357938A/fr
Priority to CH623363A priority patent/CH404875A/de
Application granted granted Critical
Publication of US3162909A publication Critical patent/US3162909A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates generally to the art of casting and more specifically to the method and apparatus for pressure pouring and casting of molten metals.
  • a still further object of this invention is to provide novel sealing means by which the ladle assembly can be quickly and efiectively sealed from the atmosphere.
  • FIGURE 1 is an elevational view of a ladle assembly constructed in accordance with the teachings of this invention
  • FIGURE 2 is a top plan view of the ladle assembly illustrated in FIGURE 1;
  • FIGURE 3 is an elevational cross-sectional view taken generally on the plane of line 3-3 of FIGURE 2 and looking in the direction of the arrows;
  • FIGURE 4 is an elevational cross-sectional view taken substantially on the plane of line 4-4 and looking in the direction of the arrows;
  • FIGURE 5 is a fragmentary view in cross-section illustrating a modification of the invention.
  • FIG- URES l and 2 illustrate a ladle assembly lowered, as for example, into a pit 12.
  • the ladle assembly 10 is generally comprised of a ladle body portion 14 which may be formed of a generally cylindrical metal container 16 containing therein a refractory material 13 lining the interior walls thereof so as to define a chamber 20 for the reception of molten metal.
  • the container 16 may, of course, be perforated as by a plurality of apertures 22 in order to provide a path of escape for gases which might otherwise.
  • cover assembly 24 is shown in cooperative engagement with both the pit 12 and ladle assembly 10 in order to efiectuate an air-tight seal therebetween for the subsequent application of superatmospheric pressure thereto.
  • the cover assembly 24 may be comprised of a top plate 26 secured as by welding to one end of a cylindrical member 28 which has secured at its other end a generally circular flange portion 39.
  • Any suitable insulating material 32. can be provided within the cover assembly so as to retain the heat within the ladle assembly.
  • the pit 12 has a cylindrical extension 34 the top of which is formed to provide an abutting portion 36.
  • a gasket 38 which may be a silicon rubber 0-ring, is provided between the top of the abutting portion as and the bottom of flange 3t) so as to efiect an air-tight seal therebetween.
  • Ladle assembly 10 also comprises a generally vertically extending pouring tube assembly 49 which may be secured to the container 16 as by gussets and flanges illustrated generally at 42, 44, 46, and 48.
  • the pouring tube assembly 49 is comprised of a plurality of tubular casings 50 having suitable flange portions 52 for securing the casings to each other (see FIGURE 1, also). Any suitable gasket material, such as asbestos, may be provided between the cooperating flanges 52.
  • An inner conduit 54 which may be formed of a plurality of tubular sections 56, has its one end in juxtaposition with orifice 58 formed in the bottom of the ladle body 14 and its other end terminating in a pouring spout assembly 60.
  • Sections 56 are, of course, constructed of some suitable refractory such as clay tile.
  • the space between sections 56 and casings 50, as also the space between the sections 56 and the lower box-like support member or cradle 64, is preferably filled with sand 62 for purposes of both support and insulation.
  • cradle 64 could contain graphite therein for supporting refractory sections 56.
  • the pouring spout assembly may be comprised of an annular metallic member 66 having a graphite ring 68 inserted therein. Both member 66 an ring 68 may be supported as by a circular flange 70 suitably secured to casing 50.
  • the conical surface 72 is, of course, to beplaced in sealing engagement with a mold assembly 74 during pouring.
  • Cover 26 has an aperture 76 formed therein for the reception therethrough of the pouring spout 60 of pouring tube assembly 49.
  • a gasket 78 retained between top plate 26 and an annular adapter plate 80 provides an airtight seal therebetween.
  • Aperture 82, formed in adapter 8%) is, of course, of a size suflicient to accommodate the pouring tube and spout.
  • a bellows member 84 which may be constructed, as for example, from stainless steel, bolted as at its upper end to the adapter plate 80.
  • a suitable seal is, of course, provided between the mating surfaces of the respective members.
  • the lower end of the bellows member 34 may also be provided with a flanged portion 86 which is adapted to cooperate With a second flange $8, formed on or secured to casing 50, in retaining a seal 90 therebetween.
  • the bellows 84 is preferably selected so as to have its free length substantially greater than the distance between adapter 80 and flange 88 thereby causing the bellows 84 to be placed in a state of compression whenever the cover assembly 24 is lowered into place atop abutment member 36.
  • a stopper assembly 92 comprised of tubular ceramic sections 94 retained between a top plate 96 and a bottom stopper portion 98, is adapted to cooperate wtih orifice 58 formed in a liner 1% in controlling the flow of molten metal therethrough.
  • a rod member 102 extending generally through said stopper assembly is suitably secured at its one end to stopper portion 98 and has its other end welding.
  • a passageway 118 is provided for the reception of one end of vrod member H92 which may be threaded so as toenable adjusting and locking nuts'lllS to be placed thereon and disposed on opposite sides of the support bar.
  • each end of support bar 1% is provided with a T-shaped bar 139 rigidly secured thereto adapted to be at times engaged with pressure responsive assemblies 126 and 128'.
  • Both assemblies 126 and 128 are of the double acting type; that is, the shafts 13b and 1 32 and hook portions 13 and 136' are made to move inwardly or outwardly from their respective cylinders by the application of pressure thereto.
  • thepressure responsive assemblies 126 and 128 may be moved to a position, illustrated by assembly 126,- wherein the shaft 130 is engaged by a retaining clip member 138.
  • Stationary guards 140 and 142 may be provided to protect the assemblies 126 and 128 from damage during lowering of the ladle into the pit 12.
  • thestopper assembly92 and support bar 103 are first lowered intothe ladle body 14 so as to completely close orifice 58.
  • the locking devices 126) and 122 are then rotated into engagement with the annular recesses formed on guide members 114 and 116 in order to retain the stopper assembly in closed position.
  • the molten metal is then poured'into chamber 20 and the ladle assembly is transported as by means of pairs ofaxially aligned trunnions'144, 146, 143, and 150 to'a suitable pit 12.
  • the ladle assembly 10 is lowered into the pit through the use of the guide blades 152 and 154, formed on the ladle assembly, cooperating ,with guidev sockets 156 and 158 in the. pit, The entire assembly is lowered until it comes to rest on its lower support members 160, 162, which preferably maintain the cradle 64: slightly above the level-of the pit floor 164.
  • the pressure responsive assemblies 126 and 128 are 7 then rotated outwardly away from the'walls of pit 12 until the hook portions 134 and 136 contact their respective T-b ars'109. Assemblies 126 and 128 are then actuated causing hook portions 134 and 136 to tend to draw the support bar 198 and stopper assembly 92 downwardly thereby maintaining orifice. 53 closed. At this time the so as to create an air-tightflchambcr 166 containing the ladle assembly 10. Any suitable clamping means may, of course, be employed for locking the cover assembly 24 in this position. I 7
  • the support bar 108 could be constructed so as to be hinged at one end and the stopper assembly also hinged thereto by means of Manually operable locking devices 120 and 122' a hinge pin 197 pivotally connecting a yoke member 199, which is secured to top plate 95, to the stopper rod memher 1% as illustrated by FlGURE 5. This would permit the use of only one pressure responsive assembly instead of requiring both res and 128.
  • bellows member 34 Another apparent modification of the invention is the reversal of the bellows member 34. That is, insteadot' being rigidly secured at one end to the adapter 3% or top plate 26, the bellows could be rigidly secured to flange 88. In such a case the free end of the bellows would abutt against a suitable seal and either the adapter till or top plate 2-5.”
  • V p I One or" the important advantages of a bellows sealing member is the fact that a more effective seal can be eitectedwith an increase in pressure differential. This is, of course, in contrast to usual mechanical sealing arrangements whereinpossibility of failure increases with increased pressure differentials.
  • FIGURE 5 illustrates a sealing arrangement, for a pouring tube of a pressure pouring ladle, comprised of a non-metallic bellows member'll'il, formed of some flexible material such as silicon rubber.
  • the outer diameter of bellows 176i is fixedly secured to the top plate 172 of the cover assembly 173 as by means of a retaining ring 174 and'screws'1'76, while the inner diameter is re tained between a pair of annular clamping plates 178 and 130 held together as by screws 182.
  • the cover assembly 173 ' is lowered onto the abutment 184, as previously described with reference to FIGURES 14, allo'wing the spout 18d of the pouring tube assembly 198 to pass through aperture 192.
  • the radially projecting shoulder 194 contacts clamping plate 185 as'through a suitable seal 1%.
  • the cover as sembly is then lockedinto position by any suitable means.
  • a plurality of peripherally arranged pres sure responsive piston assembliesone of which is shown at 198 are actuated causing'rings 178 and 188 to be urged downwardly against seal 1% which is restrained from movement by shoulder 194.
  • Piston assemblies 1% may, of course, be retained on suitable mounting arrange ments 262 secured to the top plate 172.
  • a shield assembly 2% comprised of a central collar portion 206 and a generally radially extending flange portion 26.8 may be provided in order to protect the various elements from possible damage due to, for example, accidental spilling'of moltenimetal.
  • a sealing arrangement for an internally. pressurized outer container adapted torre'ceive therein a ladle structure having an externally. formed. and upwardly projecting pouring'tube comprising a cover member detachably secured. to said outer container, an aperture formed within saidc-over member for the reception therethrough of said pouring tube, a flange portion formed on and about said pouring tube, and pressure responsive seal
  • a cover assembly adapted to be secured to said outer container in sealing engagement therewith, a ladle body received within said outer container and containing a refractory material therein defining a chamber for the reception of molten metal, said ladle body being formed so as to have an open upper end in communication with said interior chamber of said outer container, 21 generally vertically extending pouring tube assembly formed externally of said ladle body and suitably secured at its one end to a lower portion of said ladle body, a pouring conduit formed within and through said pouring tube, a discharge orifice including a seat formed thereabout communicating between said metal receiving chamber and the lower end of said pouring conduit, a laterally extending stopper support bar disposed above said open end of said ladle body, a pair of parallel guide members secured to the ladle body, a pair of parallel guide holes formed through said support bar for the reception of said guide members therethrough, a downwardly depending stopper member adjustably secured to said support bar intermediate the ends thereof adapted to at times abut against
  • An apparatus for pressure pouring molten metal comprising an outer container. having an interior chamber, a cover assembly adapted to be secured to said outer container in sealing engagement therewith, a ladle body received within said outer container and containing a refractory material therein defining a chamber for the 6 v reception of molten metal, said ladle body being formed so as to have an open upper end in communication with said interior chamber of said outer container, a generally vertically extending pouring tube assembly formed externally of said ladle body and suitably secured at its one end to a lower portion of said ladle body, a pouring conduit formed Within and through said pouring tube, a discharge orifice including a seat formed thereabout communicating between said metal receiving chamber and the lower end of said pouring conduit, a laterally extending stopper support bar disposed above said open end of said ladle body, a pair of parallel guide members secured to the ladle body, a pair of parallel guide holes formed through said support bar for the reception of said guide members therethrough, a downwardly depending
  • a sealing arrangement for an internally pressurized outer container adapted to receive therein a ladle structure having an externally formed and upwardly projecting pouring tube comprising a cover member detachably secured to said outer container, an aperture formed with in said cover member for the reception therethrough of said pouring tube, a circular radially extending flange portion formed on and about said pouring tube, and a flexible sealing assembly operatively engaging said flange portion and said cover member foreifeeting a seal'between said cover member and said flange portion, said flexible sealing assembly comprising a flexible annular sealing member having inner and outer diameters, a first stationary clampingring engagingsaid sealing member in a manner securing said outer diameter in fluid, tight relationship to said cover member, asecond' movable clamping ring having an inner diameter sufficiently large to accommodate the reception therethrough of said pouring tube but small enough so as to abut against said flange portion, a third clamping ring, said second and third clamping rings being disposed on opposite sides of said flexible sealing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Control Of Multiple Motors (AREA)
US147631A 1961-10-25 1961-10-25 Apparatus for pressure pouring articles Expired - Lifetime US3162909A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE632115D BE632115A (US07922777-20110412-C00004.png) 1961-10-25
US147631A US3162909A (en) 1961-10-25 1961-10-25 Apparatus for pressure pouring articles
GB29855/64A GB983822A (en) 1961-10-25 1963-05-14 Pressure casting arrangement and method
GB19067/63A GB983821A (en) 1961-10-25 1963-05-14 Pressure pouring metal
FR934976A FR1357938A (fr) 1961-10-25 1963-05-15 Perfectionnements apportés aux appareils de coulée sous pression des métaux
CH623363A CH404875A (de) 1961-10-25 1963-05-17 Druckgiesseinrichtung und Verfahren zu ihrem Betrieb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US147631A US3162909A (en) 1961-10-25 1961-10-25 Apparatus for pressure pouring articles

Publications (1)

Publication Number Publication Date
US3162909A true US3162909A (en) 1964-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US147631A Expired - Lifetime US3162909A (en) 1961-10-25 1961-10-25 Apparatus for pressure pouring articles

Country Status (4)

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US (1) US3162909A (US07922777-20110412-C00004.png)
BE (1) BE632115A (US07922777-20110412-C00004.png)
CH (1) CH404875A (US07922777-20110412-C00004.png)
GB (2) GB983822A (US07922777-20110412-C00004.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216070A (en) * 1962-05-08 1965-11-09 Amsted Ind Inc Pressure pouring apparatus
US3271827A (en) * 1964-04-22 1966-09-13 United States Steel Corp Stopper rod actuating device
US3648763A (en) * 1969-10-21 1972-03-14 Pont A Mousson Machine for centrifugally casting tubular metal bodies
US5465777A (en) * 1994-05-18 1995-11-14 The Budd Company Contact pouring

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736188A (en) * 1928-06-27 1929-11-19 Illinois Zinc Company Apparatus for pouring molten metal
US1912981A (en) * 1931-04-10 1933-06-06 Dow Chemical Co Method of pressure casting and means therefor
US1981381A (en) * 1930-10-11 1934-11-20 Magnesium Dev Corp Means for assuring the safe working of automatic pressure die-casting apparatus
US2210544A (en) * 1938-04-18 1940-08-06 Electric Storage Battery Co Casting
US2310766A (en) * 1938-12-07 1943-02-09 Dornauf Josef Casting metals
US2561062A (en) * 1948-09-27 1951-07-17 Walter R Ling Pressure casting apparatus
US2713705A (en) * 1952-07-30 1955-07-26 Dow Chemical Co Apparatus for delivering metered shots of molten metal for castings
US2816334A (en) * 1956-09-24 1957-12-17 Lindberg Eng Co Automatic ladling control for metal melting furnace
US2839801A (en) * 1956-02-17 1958-06-24 Griffin Wheel Co Pressure casting apparatus
US2846740A (en) * 1956-09-17 1958-08-12 Lindberg Eng Co Furnace ladling apparatus
US2852822A (en) * 1955-08-12 1958-09-23 Griffin Wheel Co Vacuum seal for pressure pouring apparatus
US2865068A (en) * 1954-10-18 1958-12-23 Andrew C Dunn Apparatus for casting metal
US2899596A (en) * 1959-08-11 Wide band mixing system
US2905989A (en) * 1956-05-04 1959-09-29 Koppers Co Inc Method and apparatus for continuous casting of metals
US2990592A (en) * 1959-05-13 1961-07-04 Griffin Wheel Co Automatic pressure pouring control mechanism
US3032841A (en) * 1957-03-08 1962-05-08 Edmund Q Sylvester Methods and apparatus for casting metal
US3092881A (en) * 1963-06-07 1963-06-11 Amsted Ind Inc Clamping arrangement for pressure casting apparatus

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899596A (en) * 1959-08-11 Wide band mixing system
US1736188A (en) * 1928-06-27 1929-11-19 Illinois Zinc Company Apparatus for pouring molten metal
US1981381A (en) * 1930-10-11 1934-11-20 Magnesium Dev Corp Means for assuring the safe working of automatic pressure die-casting apparatus
US1912981A (en) * 1931-04-10 1933-06-06 Dow Chemical Co Method of pressure casting and means therefor
US2210544A (en) * 1938-04-18 1940-08-06 Electric Storage Battery Co Casting
US2310766A (en) * 1938-12-07 1943-02-09 Dornauf Josef Casting metals
US2561062A (en) * 1948-09-27 1951-07-17 Walter R Ling Pressure casting apparatus
US2713705A (en) * 1952-07-30 1955-07-26 Dow Chemical Co Apparatus for delivering metered shots of molten metal for castings
US2865068A (en) * 1954-10-18 1958-12-23 Andrew C Dunn Apparatus for casting metal
US2852822A (en) * 1955-08-12 1958-09-23 Griffin Wheel Co Vacuum seal for pressure pouring apparatus
US2839801A (en) * 1956-02-17 1958-06-24 Griffin Wheel Co Pressure casting apparatus
US2905989A (en) * 1956-05-04 1959-09-29 Koppers Co Inc Method and apparatus for continuous casting of metals
US2846740A (en) * 1956-09-17 1958-08-12 Lindberg Eng Co Furnace ladling apparatus
US2816334A (en) * 1956-09-24 1957-12-17 Lindberg Eng Co Automatic ladling control for metal melting furnace
US3032841A (en) * 1957-03-08 1962-05-08 Edmund Q Sylvester Methods and apparatus for casting metal
US2990592A (en) * 1959-05-13 1961-07-04 Griffin Wheel Co Automatic pressure pouring control mechanism
US3092881A (en) * 1963-06-07 1963-06-11 Amsted Ind Inc Clamping arrangement for pressure casting apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216070A (en) * 1962-05-08 1965-11-09 Amsted Ind Inc Pressure pouring apparatus
US3271827A (en) * 1964-04-22 1966-09-13 United States Steel Corp Stopper rod actuating device
US3648763A (en) * 1969-10-21 1972-03-14 Pont A Mousson Machine for centrifugally casting tubular metal bodies
US5465777A (en) * 1994-05-18 1995-11-14 The Budd Company Contact pouring

Also Published As

Publication number Publication date
GB983821A (en) 1965-02-17
BE632115A (US07922777-20110412-C00004.png)
CH404875A (de) 1965-12-31
GB983822A (en) 1965-02-17

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