US3825057A - Horizontal centrifugal casting machine - Google Patents

Horizontal centrifugal casting machine Download PDF

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Publication number
US3825057A
US3825057A US00277920A US27792072A US3825057A US 3825057 A US3825057 A US 3825057A US 00277920 A US00277920 A US 00277920A US 27792072 A US27792072 A US 27792072A US 3825057 A US3825057 A US 3825057A
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United States
Prior art keywords
mold
sections
cylindrical
cast
arbor
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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
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US00277920A
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English (en)
Inventor
F Baumann
B Kaczkowski
G Rosenberry
W Smith
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General Electric Co
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General Electric Co
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Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US00277920A priority Critical patent/US3825057A/en
Priority to DE2320435A priority patent/DE2320435C3/de
Priority to IT27189/73A priority patent/IT998294B/it
Priority to GB3587273A priority patent/GB1437435A/en
Priority to FR7328281A priority patent/FR2194507A1/fr
Priority to JP48086919A priority patent/JPS5216847B2/ja
Priority to ES417564A priority patent/ES417564A1/es
Priority to SU1951802A priority patent/SU539509A3/ru
Priority to US446054A priority patent/US3866661A/en
Application granted granted Critical
Publication of US3825057A publication Critical patent/US3825057A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
    • B22D13/023—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis the longitudinal axis being horizontal

Definitions

  • ABSTRACT A horizontal centrifugal casting machine is described wherein a sectionalized mold for casting a cylindrical structure, e. g., a finned motor frame, is assembled, the
  • the casting machine includes a plurality of arcuately shaped mold sections mounted upon jaws capable of being secured to pistons of pulling cylinders. With the pistons extended, the mold sections form a substantially cylindrical structure and dual annular rings having a tapered radially inner face are traversed axially along a tapered outer portion of the jaws to fixedly secure the mold sections in position. After disengagement of the pistons, the mold is rotated by a high speed drive motor whereafter a ladle containing molten metal is inserted axially within the mold and the ladle is tilted to pour the molten metal into the mold.
  • the ladle then is withdrawn and a mandrel assembly supporting the ladle, an expandable arbor and a mold coating device is rotated to register the expandable arbor with the mold.
  • the high speed drive motor then is de-energized and the mold stopped at a predetermined angular position using a low speed drive motor.
  • the pistons of the pulling cylinders are driven radially inward to engage the outer surface of the jaws and the annular rings are released to permit the pistons to strip the mold from the cast structure.
  • the cast then is removed from the interior of the stripped sections and the open jaws are coated with casting lubricant permitting the casting cycle to be repeated.
  • the rate of rotation of the ladle during the pour should vary to effect a more rapid rate of angular displacement at the initiation and termination of pouring metal from the ladle than at the middle of the pour to produce a constant flow of metal from the ladle.
  • HORIZONTAL CENTRIFUGAL cssnnc MACHINE This invention relates toa horizontal centrifugal casting-machine for casting finned cylindrical structures and inparticular, to a casting machine wherein a sectionalized mold is assembled into a cylindrical configuration; the structure is centrifugally, cast within the mold and the mold stripped from the structure in a sub stantially automated process.
  • centrifugal casting has been known for many years, centrifugalcasting machines primarily have been limited to casting structures having a'smooth outer surface, such as metal pipes, or for applying interior linings to preformed objects, e.g., casting brake linings along the interior of brake drums.
  • a centrifugal casting machine is described'in U.S. Pat. No.
  • 1,917,872 for casting brake drum linings'by inserting a ladleinto a metal drum retained in position within a plurality of arcuately shaped segments and gradually tilting the ladle topour metal at'a uniform rate into the drum. Because the mold is separate from the centrifugal casting machine and forms a part of the finished product, there is no need to strip the mold from the centrifugally cast metal.
  • a highly automated centrifugal casting machine for producing. smooth surfaced pipes also is shown-in U.S. Pat. No.
  • centrifugal casting machine capable of producing a. large quantity of cast finned structures on a substantially automated basis.
  • a centrifugal casting machine having a mold locking assembly capable of securely fastening the individual mold sections into a composite unit for casting while permitting ready disengagement from the mold for stripping the mold sections from the cast structure.
  • a horizontal centrifugal casting machine for casting cylindrical structures in accordance with this invention generally includes a plurality of arcuate mold sections having interlocking edges and means connected to'the mold sections for moving the sections into juxtaposition to form a cylindrical mold capable of confining the liquid material to be cast. Means also are provided for connecting a rotary driveto the cylindrical mold for rosections from the cast and to prevent fracturing of the cast structure during stripping, the casting machine preferably also includes means for inserting an arbor within the cast cylindrical structure and means for expanding at least a portion of the arbor in a radial direction to contact the interior of the cast structure prior to stripping the mold sections from the cast.
  • suitable means desirably are included within the machine to tilt the ladle at a variable rate during the pour, Le, a more rapid angular displacement of the ladle is desirable at the beginning and end of the pour than at the middle of the pour, in order to produce constant flow of metal from the ladle and high quality in the finished cast product.
  • FIG. 3 is a view of the apertur'ed plate utilized in the speed sensing and mold positioning assembly
  • FIG. 4 is an enlarged sectional ,view of the speed sensing and mold positioning assembly
  • FIG. 5 is a sectional view taken along lines 55 of FIG. 1 to illustrate the 'I -s'haped groove wherein the gripping jaws slide,
  • FIG. 6 is an enlarged view of the lock rings utilized to secure the mold in position for casting
  • FIG. 7 is an isometric view of the mold in a machine mounted assembly
  • FIG. 8 is a view depicting the serial connection of the coolant hoses to the mold sections
  • FIG. 9 is a sectional view of'themold pulling assembly
  • FIG; 10 is a sectional view of the ladle: rotation mechanism
  • FIG. 11 is a view of the variable the ladle rotation mechanism.
  • FIG. 12 is a graph illustrating the variation of rate of angular displacement of the ladle with the quantity of aluminum poured from the ladle, V g
  • FIG. 13 is a sectional view of the expandable arbor
  • FIG. 14 is a view of the I4-14 of FIG. 13,
  • FIG. 15 is a sectional view of the lubricantspray mechanism of the casting machine, a
  • FIG. l6 is an' elevation view of the main turntable
  • FIG. 17 is aplanview of the main turntable to illustrate the speed control and positioning mechanism of the turntable
  • FIG. 18 is a view of the'main turntable rotary drive
  • FIG. 19 is a sectional view of the mechanical registration piston of the main turntable
  • FIG. 20 is a sectional view taken along lines 20-20 of FIG. 17 toillustrate the limit switches controlling table rotation
  • FIG, 21 is aflow chart showing the sequential operation of the casting-machine.
  • FIG. 22 (a-c) is an electrical diagram of a circuit suitable for controlling the operation of the machine.
  • FIG. 1 A horizontal centrifugal casting machine 10 in accordance with this invention is shown in FIG. 1 and generally comprises a drive and transmission unit 11, a mold assembly and stripping unit 12 and a mandrel assembly 13.
  • the mandrel assembly (illustrated also in FIG. 2) is rotatable to axially register ladle 14, expandable arbor 15 or lubricant spray head 16 with the mold and the entire mandrel assembly is mounted upon a carriage l7axially traversable along rails 18 to permit in scrtion of the registered mandrel component axially into the mold.
  • the main drive for horizontal centrifugal casting machine 10 is provided by drive motor 19, e.g., a solid obtained from the following.
  • motor I9 desirably is cooled by a blower unit 23 which includes fan 24 driven by motor 25 and suitable ducting 26 communicating the drive motor interior with the external environment.
  • the drive end 27 of main drive motor 19 rotates a pulley 28 driving flexible belts 29 to 'apply torque to a larger diameter pulley 30 to obtain the desired reduction in speed between the drive motor and centrifugal mold 21.
  • a conventional bearing block assembly 32'and standard coupling unit 33 As is shown in FIG. I, the outer housing 34 of bearing block assembly 32 is fixedly secured to base 35 of the casting machine to support the belt load while a pair of bearings 36 permit rotation of shaft 37 within the bearing block assembly to transmit rotary force through coupling unit 33 to main shaft 31.
  • the torque applied to main shaft 31 through coupling unit 33 then is transmitted to rotary face plate 20 secured to the hollow main shaft by bolts 38 to permit rotation of centrifugal mold 21 mounted to'the face plate (as will be more fully ex plained hereinafter).
  • the speed of main shaft 31 is monitored by a speed sensing and mold positioning assembly 39 (illustrated in FIGS. 3 and 4) which includes a selectively apertured wheel 40 mountedupon the shaft to pass between three proximity switches 41-43 secured to supports 44 mounted to block 45 on base 35.
  • Uppermost proximity switch 41 is radially registered with six 'arcuately spaced apertures 46 inwheel 40to measure the rotary speed of shaft 31- by counting the number of actuations of. proximity switch 41 within'a-t'ixed period of time while lower proximity switch 42 registered with radially outer semicircular lip 47 of wheel 40 is employed to determine whether shaft 31 is rotating by sensing continued actuations of the proximity switch.
  • the third proximity switch 43 serves to position rotary face plate 20 (and mold 21 mounted thereon) at a particular angular orientation with pulling assembly 48 (illustrated in FIG. 1) of the casting machine by aligning the proximity switch with protrusion 49 extending axially outward from wheel 40.
  • Proximity switches to achieve the foregoing results, are well known in the art and can be obtained commercially from the General Purpose Control Department of the General Electric Company.
  • a small drive motor 50 (illustrated in FIG. I) is connected to the opposite drive end of the shaft of main drive motor 19 through a gear reducer 51 and an electric clutch 52 topennit slow rotation of main shaft 31 after termination of mold rotation at the end of a cast. as observed by proximity switch 42.
  • Main shaft 31 is utilized not only to transmit torque to rotary faceplate 20 but also as a conduit to transmit fluid coolant to mold 21 mounted upon the face plate.
  • the fluid coolant typically water
  • the fluid coolant then advances into annular chamber 58 formed between partition 59 and plug 60 whereafter the coolant flo'ws radially outward through aperture 61 in the shaft and flexible hoses 62 to pass serially through the-four'individual sections forming mold 21 (as will be more fully explained hereinafter with reference to FIG. 8).
  • the coolant then returns through aperture 63 to axial flow channel 64 between shaft 31 and pipe 57 to return to annular chamber 65 by way of radial bore 66 in shaft 31. From annular chamber 65, the
  • Limit switchesBS are mounted upon the exterior of housing assembly 72 to measurethe outward extent of pistons 78, i.e., by actuation of the limit switches by vanes 89 carried upon rod 90 mounted on plate 79.
  • axially outer lock ring 840 is driven by an individual spring biasing means, such as theBellville washers 92, shown in FIG. 6, to compensate for the effects of thermal expansion.
  • rods 82 produce an equal axial advancement of tapered lock rings 84a and 84!: upon actuation of hydraulic cylinder 75, thermal expansion of gripping jaw'86 may produce a higher clamping force between one ring, i.e., inner ring 84b, and tapered face 85b of the gripping jaw then occurs between outer ring 840 and the gripping jaw.
  • Bellville washer 92 situated adjacent ring Mo on rod 82 can absorb the axial load as axially inner ring 84 b is driven into firm contact with the associated tapered face on gripping jaw 86 to equalcoolant flows through aperture 67 within water jacket 55 to return to a heat exchange and pumping unit (not shown) for recirculation through the mold.
  • a partition 68 serves to separate the streams of circulating coolant in the adjacent annular chambers at the endof shaft 31 while conventional face seals 69 inhibit leakage of coolant adjacent the shaft.
  • Main shaft 31 is supported at the driven end .of the shaft by a spherical bearing 70 while a tapered roller bearing 71 is situated at the drive end of the shah to absorb both radially and axially directed shaft loads.
  • tapered roller-bearing 71 is positioned between shaft 31 and housing assembly 72 at a fixed axial location while spherical bearing 70 is axially slidable between the shaft and housing assembly to inhibit axialloading of the bearing.
  • Both bearings are lubricated by oil circulating between the rotating shaft and the stationary housing assembly by way of oil intake and exhaust orifices 73 and 74, respectively,
  • a pair of hydraulic cylinders 75 mounted on plate 76 fixedly secured to base 35 serve to reciprocally drive mold locking unit 77 in an axial direction thereby securing mold 21 in position for casting.
  • pistons 78 within cylinders 75 reciprocally drive annular plate 79 and the reciprocal motion of the plate is transmitted through the radially outer raceway of tapered roller bearing 80m axially traverse the rotary bearing members and the inner raceway of the bearing along shaft 31.
  • the back plate and rods 82 fixedly secured along the periphery of the back plate also are uaversed in an axial direction by actuation of pistons 78.
  • Axial movement of rods 82 draws the tapered annular face 83 of lock rings 84 against the tapered radially outer faces 85 of mold gripping jaw 86 to radially slide the jaws within a T-shaped aperture 87 (shown in FIG. 5) of rotary face ize the force distribution at axially opposite ends of the assembled mold.
  • a sectionalized centrifugal mold 21 preferred for utilization in this invention is depicted in H6. 7-in' a machine mounted configuration, i.e., with associated gripping jaws 86 of the casting machineflhe mold preferably is formed of four arcuate sections 2lq-2ld having interlocking axial edges 93 to mate upon juxtaposition of the sections thereby forming a composite mold capable of retaining molten metal therein.
  • the interlocking edges 93 of mold 21 are similar to the edge configuration of the mold disclosed inBaumarm et al U.S.' Patent Application, Ser. No. 220,286 (the disclosure'of which is incorporated herein by reference).
  • edges of mold 21, however, are designed-to be disengaged or engaged upon simultaneously moving all four sections along perpendicularly oriented axes.
  • two diametrically opposite mold sections i.e., sections 210 and 21c, are provided with longitudinal edges having an angular, preferably orthogonal, step 93a which functions as a seat for the longitudinal edges 93!: of the adjacent mold sections.
  • the radially inward extending lips 94 at the axial ends adjacent mold sections also have edges 940 with a complimentary angular taper, preferably radial. to snugly mate upon juxtaposition of the mold sections.
  • each mold section preferably is notched, in conventional fashion, to form a plurality of triangular grooves 91 extending in a substantially parallel direction into each mold section to produce the cooling fins desirable for the cast frame without substantially inhibiting stripping of the mold sections from the frame.
  • the width of the grooves should taper at a suitable angle, e.g., .030/in. n 230, with penetration into the sidewall of the mold.
  • Each mold section is individually secured to a mold gripping jaw of the casting machine by bolts 95 and a v7 1 suitable fluid connector, preferably a commercially available quick disconnect connector 96 and an elbow 97 (shown in FIG. 8) admits fluid coolant from flexible hoses 62 to the region between the mold section and the jaw fixedly secured thereto.
  • the coolant is circulated in dual streams serially through the composite mold jaw units (as shown in FIG. 8) before returning to'flow chamber 64 in shaft 31 for return to the heat exchange and coolant pumping unit associated with the machine.
  • lock rings 84 clamp the mold sections into a composite unit, no provision (other than tapered face 85 on the mold gripping jaws) is required along the outer periphery of the mold sections to secure one mold section to the other.
  • 'Four cars 99 are provided on each mold section to maintain the sections in juxtaposition in order to facilitate changing molds within the casting machine.
  • pins 98 can be inserted through the ears of the mold sec.- tions to maintain the sections in juxtaposition whet-eatter the composite unit may be supported upon arbor of mandrel assembly 13.
  • Mandrel assembly carriage 17 then is moved axially into the machine permitting the mold sections to be'bolted to gripping jaws 86-of the machine.
  • the pins retaining the mold sections in juxtaposition then can be manually removed and the arbor withdrawn axially from the mold to permit the initiation of casting.
  • each gripping jaw 86 to which the individual mold sections are secured has a tapered radially outer face 85 at axiallybppositeends 'ofthe mold to permit the application of a radially inward force to the mold sections upon the axial traversal-of lock rings 84 across the faces.
  • One edge of the jaw, the axially inner edge has a T-shaped protrusion 100 to be slidably-received within T-shaped aperture 87 of rotary face plate to permit the jaw to slide in a radial direction.
  • the radially outer face of each jaw also has apulling bracket 101 for engagement with .-pistons 102 (shown in FIG. 1) of hydraulic pulling assemblies 48 fixedly secured to the stationary main back plate. 104 of the centrifugal casting machine;
  • the pulling assembly utilized to position the mold I sectionsfor engagement by lock rings 84and for stripping the mold sections from the cast is illustrated more clearly in FIG. 9 and generally comprises a large hydraulic pulling cylinder 105, inder, fixedly secured to back plate 104 by brackets 106 and angles 106a. Piston 102 of the pulling cylinder has a tapered bifurcated member 107 threadedly engaged at the forward end of the piston to engage pulling brackets 10!
  • Dual limit switches switches ll2'and1l3 also are mounted along the outer housing of small diameter cylinder 109 to be engaged by lockpins 110 to indicate the position of the lockpins relative to bifurcated member 107.
  • piston 102 of the large pulling cylinder also carries a lower platform 114 having dual guide rods llS mounted thereon to actuate limit switches 116 and 117 by vanes 118 mounted on the guide rods toindicatc the extent of piston 102 toward the mold.
  • four pulling cylinders 105 are mounted at 90 intervals about main back plate 104 to radially align bifurcated members 107 with pulling brackets 101 of gripping jaws 86.
  • the four pulling cylinders are fed hydraulic fluid through commercially available flow dividers (not shown) to synchronize thepulling of the mold sections from the cast notwithstanding differing adhesive forces between the cast and the separate mold sections.
  • Flow dividers to achieve this result typically include four hydraulic pumps having a single interconnected shaft to assure the. pumping of equal quantities of hydraulic fluid to each of pulling cylinders ,105.
  • a flow divider capable of pumping seven gallons'per e.g., a 6 inch diameter cylminute per cylinder could be serially connected with a flow divider capable of pumping 35 gallons per minute per cylinder.
  • the lower volume flow divider-then functions to reduce the slip between pulling pistons until the mold sections are disengaged from the cast whereafter alsuitable valve by-passing the lower volume flow divider oould be actuated to permit a more rapid synchronized withdrawal of the pulling pistons into their respective cylinders'under the control of the higher vol ume flow divider.
  • Ladle l4 issubstantially identical to the ladle described in heretofore cited Baumann et al U.S. Patent Application Ser. No. 220,285 (the disclosure of which is incorporated herein) and generally includes a cylindrical vessel 121 having a ceramic lining 122 and a metallic outer sheathing 123.
  • a rectangular 'opening 124 is provided along the top of the ladle to admit and remove molten metal from the ladle and the ladle is secured to a rotatable shaft 125 to permit tilting of the ladle when discharge of molten metal from the ladle is desired.
  • a back plate 126 also is mounted be tween the ladle and rotatable shaft 125 to mate with opening 127 in hood assembly 128 to entirely enclose the rotating mold during the pouring of molten metal into the mold.
  • Tilting of the ladle to pour molten metal therefrom is accomplished utilizing ladle rotating mechanism 129 (illustrated in FIG. 10 and lllwhich mechanism gen erally includs a hydraulic cylinder 130 fixedly secured within the mandrel assembly for driving rack 131

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Centrifugal Separators (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
US00277920A 1972-08-04 1972-08-04 Horizontal centrifugal casting machine Expired - Lifetime US3825057A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US00277920A US3825057A (en) 1972-08-04 1972-08-04 Horizontal centrifugal casting machine
DE2320435A DE2320435C3 (de) 1972-08-04 1973-04-21 Horizontal-Schleudergieemaschine und Verfahren zum Schleudergießen von mit Rippen versehenen zylindrischen Gußstücken
GB3587273A GB1437435A (en) 1972-08-04 1973-07-27 Centrifugal casting machine and method of casting
IT27189/73A IT998294B (it) 1972-08-04 1973-07-27 Macchina orizzontale per colata centrifuga e metodo di colata
FR7328281A FR2194507A1 (en:Method) 1972-08-04 1973-08-02
JP48086919A JPS5216847B2 (en:Method) 1972-08-04 1973-08-03
ES417564A ES417564A1 (es) 1972-08-04 1973-08-03 Maquina para fundicion centrifuga horizontal.
SU1951802A SU539509A3 (ru) 1972-08-04 1973-08-03 Установка дл центробежного лить
US446054A US3866661A (en) 1972-08-04 1974-02-26 Horizontal centrifugal casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00277920A US3825057A (en) 1972-08-04 1972-08-04 Horizontal centrifugal casting machine

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US3825057A true US3825057A (en) 1974-07-23

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US00277920A Expired - Lifetime US3825057A (en) 1972-08-04 1972-08-04 Horizontal centrifugal casting machine

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US (1) US3825057A (en:Method)
JP (1) JPS5216847B2 (en:Method)
DE (1) DE2320435C3 (en:Method)
ES (1) ES417564A1 (en:Method)
FR (1) FR2194507A1 (en:Method)
GB (1) GB1437435A (en:Method)
IT (1) IT998294B (en:Method)
SU (1) SU539509A3 (en:Method)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117878A (en) * 1975-11-20 1978-10-03 Przedsiebiorstwo Projektowania i Wyosazania Zakladow Prezemysly Maszyn i Apartow Elektrycznych "Promel" Unit for centrifugal casting of metals in split moulds
US4139049A (en) * 1977-05-11 1979-02-13 General Electric Company Positioning apparatus for a centrifugal casting machine and means for positioning components thereof for a mold stripping operation
US4203483A (en) * 1977-05-11 1980-05-20 General Electric Company Method of positioning components of a centrifugal casting machine for a mold stripping operation
US4759703A (en) * 1986-03-05 1988-07-26 Netstal-Maschinen Ag Equipment for spraying the mold surfaces of multi-part dies
CN113351845A (zh) * 2021-08-12 2021-09-07 江苏明如精密模具有限公司 一种加工离心铸造模具
CN115446280A (zh) * 2022-10-11 2022-12-09 广东金志利科技股份有限公司 一种风力发电机转动轴铸件的铸造装置
CN119237696A (zh) * 2024-12-06 2025-01-03 安徽精智威兰流体科技有限公司 一种自动离心铸造设备及铸造工艺
CN119609104A (zh) * 2025-02-11 2025-03-14 泰州市德力西冶金机械设备有限公司 一种富氧燃烧型钢包烘烤器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147631U (en:Method) * 1977-04-26 1978-11-20
JPS5923918A (ja) * 1982-07-30 1984-02-07 Mitaka Kogyo Kk プログラムタイマ−の数値設定方式
CN113828751A (zh) * 2021-10-09 2021-12-24 中船重工重庆智能装备工程设计有限公司 离心浇铸机
CN118699315B (zh) * 2024-06-21 2025-03-21 大冶福诚精密铸造有限公司 一种便于拔模的卧式离心铸造机

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117878A (en) * 1975-11-20 1978-10-03 Przedsiebiorstwo Projektowania i Wyosazania Zakladow Prezemysly Maszyn i Apartow Elektrycznych "Promel" Unit for centrifugal casting of metals in split moulds
US4139049A (en) * 1977-05-11 1979-02-13 General Electric Company Positioning apparatus for a centrifugal casting machine and means for positioning components thereof for a mold stripping operation
US4203483A (en) * 1977-05-11 1980-05-20 General Electric Company Method of positioning components of a centrifugal casting machine for a mold stripping operation
US4759703A (en) * 1986-03-05 1988-07-26 Netstal-Maschinen Ag Equipment for spraying the mold surfaces of multi-part dies
CN113351845A (zh) * 2021-08-12 2021-09-07 江苏明如精密模具有限公司 一种加工离心铸造模具
CN113351845B (zh) * 2021-08-12 2021-10-08 江苏明如精密模具有限公司 一种加工离心铸造模具
CN115446280A (zh) * 2022-10-11 2022-12-09 广东金志利科技股份有限公司 一种风力发电机转动轴铸件的铸造装置
CN119237696A (zh) * 2024-12-06 2025-01-03 安徽精智威兰流体科技有限公司 一种自动离心铸造设备及铸造工艺
CN119609104A (zh) * 2025-02-11 2025-03-14 泰州市德力西冶金机械设备有限公司 一种富氧燃烧型钢包烘烤器

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Publication number Publication date
DE2320435B2 (de) 1978-10-12
DE2320435C3 (de) 1979-06-07
IT998294B (it) 1976-01-20
JPS4979924A (en:Method) 1974-08-01
FR2194507A1 (en:Method) 1974-03-01
DE2320435A1 (de) 1974-02-14
GB1437435A (en) 1976-05-26
SU539509A3 (ru) 1976-12-15
ES417564A1 (es) 1976-08-01
JPS5216847B2 (en:Method) 1977-05-12

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