US3807488A - Vacuum arc furnace having centrifugal casting means - Google Patents

Vacuum arc furnace having centrifugal casting means Download PDF

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Publication number
US3807488A
US3807488A US00230626A US23062672A US3807488A US 3807488 A US3807488 A US 3807488A US 00230626 A US00230626 A US 00230626A US 23062672 A US23062672 A US 23062672A US 3807488 A US3807488 A US 3807488A
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US
United States
Prior art keywords
chamber
moulds
centrifugal casting
molten metal
casting machine
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
US00230626A
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English (en)
Inventor
S Glazunov
I Zhikharev
D Filippov
P Norin
V Zasulsky
K Yasinsky
A Khromov
I Prostov
A Romanov
A Ivanov
E Kashina
Valeeva N Gorina
M Kuleshov
P Smirnov
V Nikolaev
I Krjuchkov
V Musatov
V Moldavsky
L Khrustsevich
V Nekrasov
G Lyapina
N Fedoseev
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.)
Individual
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Individual
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 claimed from SU7101668187A external-priority patent/SU384293A1/ru
Priority to CA135,580A priority Critical patent/CA970523A/en
Priority to DE19722209048 priority patent/DE2209048C/de
Application filed by Individual filed Critical Individual
Priority to US00230626A priority patent/US3807488A/en
Priority to SE7204161A priority patent/SE387261B/xx
Priority to JP47039086A priority patent/JPS5027446B2/ja
Priority to FR7221396A priority patent/FR2143003B1/fr
Application granted granted Critical
Publication of US3807488A publication Critical patent/US3807488A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B22D13/026—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 vertical
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum

Definitions

  • ABSTRACT A vacuum arc furnace in combination with a centrifugal casting machine having a first melting chamber and a second chamber .for pouring molten metal into moulds is disclosed. Mounted under the chambers is a centrifugal casting machine fitted with a detachable table including carrying moulds and including a drive for elevating the table in a vertical direction. The drive rotates the elevated table with the moulds thereon having molten metal.
  • the present invention relates to vacuum arc furnaces for melting chemically active metals followed by pouring them into mould ofa centrifugal casting machine to produce thin-walled workpieces.
  • a vacuum arc furnace for melting chemically active metals to be fed subsequently into moulds of a centrifugal casting machine mounted on a bogie or a wagon.
  • a melting chamber of the furnace is fitted with a melting crucible and a consumable electrode.
  • the melting chamber is separated by a vacuum gate valve from a second chamber located beneath and designed for accommodating the centrifugal casting machine.
  • This second chamber with the centrifugal casting machine is installed on the self-propelled wagon and is capable of travelling along a rail track in a horizontal direction.
  • the centrifugal casting machine is sta-. tionarily fixed and has a drive to shift in a vertical direction the detachable table which is enclosed in the chamber for distributing the liquid metal and is moved together with that chamber equipped with an upper and lower gate valves making'it airtight.
  • Such a furnace makes it possible to increase the productive time of the furnace by replacing rapidly the chamber for distributing the liquid metal among the moulds.
  • a stationary and rigid location of the centrifugal casting machine makes it more stable and precludes the incidence of vibrations which tend to arise due to a non-rigid fastening.
  • the pins shall keep the table of the centrifugal casting machine from being displaced when it is rolled back and then returned together with the chamber for distributing the liquid metal. This will ensure a reliable connection between the spindle of the centrifugal ma chine and its table.
  • FIG. 1 is a fragmentary cut-away view of the side wall of a vacuum arc furnace
  • FIG. 2 depicts the same vacuum arc furnace with detached chamber for distributing liquid metal and with theenclosed in it table.
  • a vacuum furnace for the centrifugal casting of metal workpieces has a vacuum chamber 1 (FIGS. 1 and 2) with consumable electrode 2 and crucible 3 for producing liquid metal and chamber 5 arranged below it on bogie 4 and intended for distributing the liquid metal among moulds 6 set up on table 7 of centrifugal casting machine 8.
  • centrifugal casting machine 8 As centrifugal casting machine 8 is disposed stationary, and fixed its vibrations are not transmitted to either chambers 1 and 5 of the vacuum arc furnace or moulds 6 mounted on table 7 of centrifugal machine 8.
  • drive 9 To move table 7 in a vertical direction drive 9 is provided, consisting of hydraulic cylinder 10 acting as a frame, and rod 11 representing a tailspindle through which spindle 12 passes which serves to hold table 7 and to impart it rotation from drive 13.
  • Table 7 can be coupled with spindle 12 for rotation therewith by means of a projection and a recess which can be provided on the parts to be coupled togetherfor rotation.
  • Chamber for distributing the liquid metal among moulds 6 set up on a table 7 is equipped with vacuum gate valves 14, 15 making itair-tight, and pins 16 centring table 7 and keeping it after it has been detached from the spindle of centrifugal casting machine 8.
  • vacuum gate valve 17 is mounted at its bottom.
  • a base plate 18 Under chamber for distributing the liquid metal there is a base plate 18 the purpose of which is to force said chamber 5 against the butt end of chamber 1 and to provide with the aid of packing l9 sufficient and dependable air-tightness of the furnace, as a whole, in the course of operation.
  • Base-plate 18 is fitted with a hole to receive spindle 12 of centrifugal machine 8 to be coupled subsequently with table 7 carrying moulds 6. Inserted in the hole of base-plate 18 is an air-tight cup (not shown in the drawing).
  • pipe 20 provided in vacuum chamber 1 and connecting pipe 21 in base-plate 18.
  • the vacuum arc furnace functions as follows.
  • a consumable electrode 2 having an adequate weight for carrying out several heats is inserted in vacuum chamber 1.
  • Under vacuum chamber 1 is set up the chamber 5 having the table 7 carrying thereon moulds 6 intended to receive the metal being poured and to produce workpieces.
  • Chambers 1 and 5 are set in communication with each other by means of the vacuum gate valves and the base-plate 18 is forced against them, whereupon the air from the entire volume of the furnace is evacuated via connecting pipes 20 and 21 coupled to a vacuum system (not shown in the drawing).
  • the drive 9- is turned on next and the rod 11 is moved up from hydraulic cylinder together with spindle 12 in the direction of detachable table 7.
  • the locking device with the projection provided in the upper portion of spindle 12 (not shown in the drawing) is inserted into and engaging an opening in the lower portion of table 7, with both parts being therefore joined together, and drive 9 raises table 7 with moulds 6 to a specified height.
  • consumable electrode 2 is melted in crucible 3 which is located and enclosed in vacuum chamber 1'.
  • drive 13 of centrifugal casting machine 8 is cut in, the drive being intended to rotate table 7.
  • gate valve 17 is closed to separate vacuum chamber 1 from chamber 5 which is also closed by upper vacuum gate valve 14.
  • Chamber 5 is disconnected from the furnace and rolled away, and replaced with another chamber accommodating a similar table 7 with moulds 6 ready to accept molten metal for casting.
  • the cycle is repeated until all the electrode 2 is consumed.
  • the furnace gears are controlled from a central control panel.
  • a vacuum arc furnace for the centrifugal casting of metal workpieces comprising: a vacuum chamber having a consumable electrode and a crucible disposed therein for producing molten metal from the consumable electrode; a second chamber provided for distributing the molten metal among moulds, said second chamber being mounted under the said first vacuum chamber on a mobile carriage; a centrifugal casting machine having a detachable rotary table carrying moulds thereon and stationarily fixed under'the said second chamber so that only said detachable table carrying the moulds projects into and is enclosed in said second chamber; a drive of the said centrifugal casting machine having means for displacing said table in a vertical direction and towards the bottom of said vacuum chamber to facilitate tapping of molten metal from said crucible into said moulds, said drive of the centrifugal casting machine also having means to rotate the detachable table with the moulds so as to cause centrifugal forces on molten metal in the moulds; and gate valves making the said second chamber for distributing the
  • a vacuum arc furnace as of claim 1 in which said means for vertically displacing the table comprises a hydraulic cylinder acting as a drive for moving said table, said cylinder acting as a frame and having an associated piston rod, and a tail spindle through which is passed a spindle holding the table and imparting a rotary movement to the table from the drive.
  • a vacuum arc furnace for the centrifugal casting of metal work pieces comprising:
  • a vacuum chamber having a consumable electrode and a crucible disposed therein for producing molten metal from the consumable electrode;
  • a second chamber provided for distributing the molten metal among moulds, said second chamber being mounted under said first vacuum chamber on a mobile carriage;
  • centrifugal casting machine having a detachable rotary table carrying moulds thereon and stationarily fixed under said second chamber so that only said detachable table carrying the moulds projects into and is enclosed in said second chamber;
  • a drive of said centrifugal casting machine having means for displacing said table in a vertical direction and towards the bottom of said vacuum chamber to facilitate tapping of the molten metal from said crucible into said moulds, said drive of said centrifugal casting machine also having means to rotate the detachable table with the moulds so as to cause centrifugal forces on molten metal in the moulds;
  • said second chamber for pouring molten metal into the moulds having centering retainers arranged to keep said detachable table disengaged from the spindle of said centrifugal machine and subsequently displacement thereof together with said second chamber;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Prosthetics (AREA)
  • Furnace Details (AREA)
US00230626A 1971-06-22 1972-03-01 Vacuum arc furnace having centrifugal casting means Expired - Lifetime US3807488A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA135,580A CA970523A (en) 1971-06-22 1972-02-25 Vacuum arc furnace
DE19722209048 DE2209048C (de) 1971-06-22 1972-02-25 Vakuum-Lichtbogenofen
US00230626A US3807488A (en) 1971-06-22 1972-03-01 Vacuum arc furnace having centrifugal casting means
SE7204161A SE387261B (sv) 1971-06-22 1972-03-29 Centrifugalgjutanleggning
JP47039086A JPS5027446B2 (US07223432-20070529-C00017.png) 1971-06-22 1972-04-18
FR7221396A FR2143003B1 (US07223432-20070529-C00017.png) 1971-06-22 1972-06-14

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU7101668187A SU384293A1 (ru) 1971-06-22 1971-06-22 Вакуумна дугова печь дл плавки и лить металлов
US00230626A US3807488A (en) 1971-06-22 1972-03-01 Vacuum arc furnace having centrifugal casting means

Publications (1)

Publication Number Publication Date
US3807488A true US3807488A (en) 1974-04-30

Family

ID=26665432

Family Applications (1)

Application Number Title Priority Date Filing Date
US00230626A Expired - Lifetime US3807488A (en) 1971-06-22 1972-03-01 Vacuum arc furnace having centrifugal casting means

Country Status (5)

Country Link
US (1) US3807488A (US07223432-20070529-C00017.png)
JP (1) JPS5027446B2 (US07223432-20070529-C00017.png)
CA (1) CA970523A (US07223432-20070529-C00017.png)
FR (1) FR2143003B1 (US07223432-20070529-C00017.png)
SE (1) SE387261B (US07223432-20070529-C00017.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055216A (en) * 1976-03-05 1977-10-25 Viktor Leonidovich Ulyanov Vacuum casting machine
CH673606A5 (en) * 1987-11-23 1990-03-30 Sulzer Ag Vacuum mould casting device - with mould mounted in its own air-tight sealable container to increase casting rate
US20110162815A1 (en) * 2007-06-28 2011-07-07 Jinan Zhuduansuo Jiemai Machinery Co., Ltd. Aluminum Alloy Vacuum Casting Equipment
CN105127391A (zh) * 2015-09-02 2015-12-09 杨一舟 新型立式离心浇铸机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300641A1 (fr) * 1975-02-11 1976-09-10 Inst Litya Akademii Installation de coulee sous vide
JPS5241037U (US07223432-20070529-C00017.png) * 1975-09-17 1977-03-23
FR2556994B1 (fr) * 1983-12-23 1988-05-06 Pierre Lajoye Procede et dispositif pour l'elaboration et la mise en forme sous vide d'un alliage metallique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU240192A1 (ru) * В. К. Шаблинский, И. И. Лупырев, Б. А. Нечаев, П. Савельев, С. С. Сенкевич , А. Д. Завь лов Установка для вакуумной плавки тугоплавких
US2550642A (en) * 1948-07-22 1951-04-24 Illium Corp Centrifugal casting machine
US3174199A (en) * 1960-05-11 1965-03-23 Trindler Friedrich Method for centrifugal casting and apparatuses for practising it
US3280434A (en) * 1964-04-22 1966-10-25 Anthony R Cecere Vacuum centrifugal jewelry making machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU240192A1 (ru) * В. К. Шаблинский, И. И. Лупырев, Б. А. Нечаев, П. Савельев, С. С. Сенкевич , А. Д. Завь лов Установка для вакуумной плавки тугоплавких
SU186647A1 (ru) * С. Г. Глазунов, И. А. Жихарев, Л. А. Хрусцевич, А. М. Хромов, Ю. В. Ершов, К. К. Ясинский , К. А. Зубова Плавильно-заливочная установка
US2550642A (en) * 1948-07-22 1951-04-24 Illium Corp Centrifugal casting machine
US3174199A (en) * 1960-05-11 1965-03-23 Trindler Friedrich Method for centrifugal casting and apparatuses for practising it
US3280434A (en) * 1964-04-22 1966-10-25 Anthony R Cecere Vacuum centrifugal jewelry making machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055216A (en) * 1976-03-05 1977-10-25 Viktor Leonidovich Ulyanov Vacuum casting machine
CH673606A5 (en) * 1987-11-23 1990-03-30 Sulzer Ag Vacuum mould casting device - with mould mounted in its own air-tight sealable container to increase casting rate
US20110162815A1 (en) * 2007-06-28 2011-07-07 Jinan Zhuduansuo Jiemai Machinery Co., Ltd. Aluminum Alloy Vacuum Casting Equipment
US8069902B2 (en) * 2007-06-28 2011-12-06 Jinan Casting Forging Machinery Institute Co., Ltd. Aluminum alloy vacuum casting equipment
CN105127391A (zh) * 2015-09-02 2015-12-09 杨一舟 新型立式离心浇铸机

Also Published As

Publication number Publication date
JPS5027446B2 (US07223432-20070529-C00017.png) 1975-09-08
CA970523A (en) 1975-07-08
FR2143003A1 (US07223432-20070529-C00017.png) 1973-02-02
JPS494627A (US07223432-20070529-C00017.png) 1974-01-16
FR2143003B1 (US07223432-20070529-C00017.png) 1977-06-17
DE2209048A1 (de) 1973-01-11
SE387261B (sv) 1976-09-06

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