US2466612A - Continuously casting hollow metal shapes - Google Patents

Continuously casting hollow metal shapes Download PDF

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Publication number
US2466612A
US2466612A US681014A US68101446A US2466612A US 2466612 A US2466612 A US 2466612A US 681014 A US681014 A US 681014A US 68101446 A US68101446 A US 68101446A US 2466612 A US2466612 A US 2466612A
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US
United States
Prior art keywords
mold
mandrel
casting
zone
hollow 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
US681014A
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English (en)
Inventor
Albert J Phillips
Jr John S Smart
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.)
American Smelting and Refining Co
Original Assignee
American Smelting and Refining Co
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 BE487759D priority Critical patent/BE487759A/xx
Application filed by American Smelting and Refining Co filed Critical American Smelting and Refining Co
Priority to US681014A priority patent/US2466612A/en
Priority to GB1018/49A priority patent/GB657788A/en
Priority to FR980181D priority patent/FR980181A/fr
Application granted granted Critical
Publication of US2466612A publication Critical patent/US2466612A/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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes

Definitions

  • This invention relates to apparatus for continuously casting hollow metal shapes.
  • the ⁇ present invention provides improved apparatus for continuously casting hollow metal shapes ona commercial basis, the products manifesting uniformity in their dimensionsboth inner and outer, and exhibiting minimum variation in wall thickness-less than 1% being commonly achieved.
  • Fig. 2 is a view ta y n at the line 2-2 of Fig. 1, looking in the direction of the arrows.
  • Fig. 3 isan elevation in section of a modiiied form of such casting apparatus
  • Fig. 4 is a further modiflcation of such casting apparatus.
  • I0 represents the floor of a Crucible or other suitable vessel containing molten metal I4 to be cast.
  • a mold having body portion I6, is provided at its upper end with a mandrel I8 which is xedly secured thereto by the cooperating male and female threaded segments 20 and 2l, respectively ⁇
  • a cooling jacket 22 surrounds the lower portion of the mold I6 for solidifying the molten metal into the hollow casting 24.
  • Two pairs of oppositely disposed rolls 2li-28 are provided for controlling the withdrawal of the casting 24 from the mold.
  • 'I'he cap portion of the mandrel I8 is provided with a number of holes 30 for introducing molten metal I4 from the holding vessel into the mold cavity at 32.
  • 8a is externally threaded and is iixedly secured to mold body Ilia which is internally threaded at its top portion 35,
  • vall las indicated at 34 In the modification shown in Fig. 4 mold body I6b and mandrel Ib are formed of a single piece of material, holes 30h being provided for ingress of molten metal to the mold cavity. In all cases, the mold is provided with external threads 36 which engage threads 31 in the base or oor I0 for mounting and dismounting the mold simply by screwing or unscrewing the mold into or out of the base from below.
  • the top of the mold In mounted position, as shown in the drawings, the top of the mold extends through the oor of the vessel so that the upper region of the mold cavity communicates directly with the interior of the Vessel to receive molten metal therefrom by gravity in response to withdrawal of the cast shape from the mold thereby precluding any free surface of molten metal in the mold during casting.
  • a further feature of importance in continuously casting hollow shapes of most metals and alloys is the kind and position of tapers provided for both mandrel and body portions of the mold.
  • attention is drawn to the fact that the zone of solidication in the mold cavity varies vertically according to whether the casting operation is just being devisated or is established.
  • This difference iS indicated, for illustrative purposes, in the several figures of the drawings; the zone of initial solidication being indicated by reference character 4
  • a properly tapered mold body and mandrel in accordance with the invention is a mold of the following dimensions which has been successfully employed for the production of silver continuous cast tube having an outside diameter of one and one-half inches and an inside diameter of five-eighths of an inch.
  • the mold is of the general type illustrated in Fig. l with an over-all length of 6 inches, the mandrel portion being three and one-eighth inches long exclusive of the cap portion containing the molten metal feed holes which was ve-eighths inch.
  • the mandrel was provided with a taper of threeeighths inch per foot, the diameter of said mandrel being 0.605" at its bottom.
  • the diameter of the mold body was 1.548" and -the inner Wall was straight.
  • the inner wall was provided with an upwardly-extending inverse taper to a diameter of 1.522 inches.
  • a taper was also provided for the inner wall from the bottom of the normal zone of solidication to the mold exit so that the diameter of the latter measured 1.527".
  • the mold is closed with a starting plug of the configuration of the casting to be made, cooling fluid such as water is circulated through the jacket 22, molten metal tobe cast is supplied through the holding vessel from whence it enters the mold cavity by the 4 holes 30, and the withdrawal rolls 75, 28 actuated-all as will be understood by the operator skilled in the art.
  • cooling fluid such as water
  • Example I.-Tin bronze metal tubing i copper, 5% tin) having an outside diameter of 2" and a wall thickness of 0.2" was continuously cast at the rate of one foot per minute in a graphite mold assembly of the type illustrated in Fig. 1. Examination or the product revealed a uniformly concentric bore with a very smooth inner wall surface and a variation in wall thickness of less than 1
  • Apparatus for continuously casting hollow metal shapes comprising a vessel allording a supply of molten metal, a vertically-disposed graphite mold comprising body and mandrel portions structurally joined and united one to the other in fixed relationship precluding both horizontal and vertical relative movement therebetween and thus defining a mold cavity of constant dimensions throughout the continuous casting of metal therein, the inner wall of said body portion having an upwardly-extending inverse taper from the zone of normal solidication through the zone of initial solidication permitting inauguration of the continuous casting process and said mandrel portion having a downwardly-extending converging taper at the zone of normal solidication permitting progressive, non-seizing contraction of the cast shape in its downward movement, means mounting said mold in the' floor of said vessel with the top of the mold extending therethrough so that the upper region of said mold cavity communicates directly with the interior of said vessel to receive molten metal therefrom by gravity in response to withdrawal of the cast shape from the mold thereby precluding any free surface of molten metal in the mold
  • Apparatus for continuously casting hollow metal shapes comprising a vessel affording a supply of molten metal, a vertically-disposed graphite mold comprising body and mandrel portions structurally joined one to the other by cooperating male and female threaded segments in manner precluding both horizontal and vertical relative movement therebetween and thus dening a mold cavity of constant dimensions throughout the continuous casting of metal therein, the inner wall of said body portion having an upwardlyextending inverse taper from the zone of normal solidication through the zone of initial solidi x0 cation permitting inauguration of the continuous casting process and said mandrel portion having a downwardly-extending converging taper at the zone of normal solidication permitting progressive, non-seizing contraction of the cast shape in its downward movement, means mounting said mold in the oor of said vessel with the top of the mold extending therethrough so that the upper region of said mold cavity communicates directly with the interior of said vessel to receive molten metal therefrom by gravity in response to withdrawal of the cast shape from the mold thereby precluding any

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US681014A 1946-07-02 1946-07-02 Continuously casting hollow metal shapes Expired - Lifetime US2466612A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE487759D BE487759A (en)) 1946-07-02
US681014A US2466612A (en) 1946-07-02 1946-07-02 Continuously casting hollow metal shapes
GB1018/49A GB657788A (en) 1946-07-02 1949-01-13 Continuously casting hollow metal shapes
FR980181D FR980181A (fr) 1946-07-02 1949-02-05 Appareil pour la coulée continue de pièces métalliques creuses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US681014A US2466612A (en) 1946-07-02 1946-07-02 Continuously casting hollow metal shapes

Publications (1)

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US2466612A true US2466612A (en) 1949-04-05

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US681014A Expired - Lifetime US2466612A (en) 1946-07-02 1946-07-02 Continuously casting hollow metal shapes

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US (1) US2466612A (en))
BE (1) BE487759A (en))
FR (1) FR980181A (en))
GB (1) GB657788A (en))

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709640A (en) * 1950-04-20 1955-05-31 Internat Mincrals & Chemical C Vertical den for continuous superphosphate solidification
DE1240234B (de) * 1956-04-20 1967-05-11 Wieland Werke Ag Verwendung einer ofenunabhaengigen Verbundstranggiesskokille fuer das Stranggiessen von sauerstoffhaltigem Kupfer
US3346036A (en) * 1964-01-16 1967-10-10 Boehler & Co Ag Geb Process for the continuous casting of tubular products
US3375863A (en) * 1966-03-16 1968-04-02 Anaconda American Brass Co Apparatus for continuous casting metal tubes
US3435881A (en) * 1967-01-03 1969-04-01 Carbone Corp Anisotropic continuous casting mold
US3592259A (en) * 1967-12-15 1971-07-13 Wiener Schwachstromerke Gmbh Cooling means for a continuous casting mold assembly
US3736979A (en) * 1970-01-30 1973-06-05 Technica Guss Gmbh Die for tube profiles
US4000773A (en) * 1976-02-09 1977-01-04 Gus Sevastakis Die assembly for continuous vertical casting of tubular metallic products
US4154291A (en) * 1977-10-17 1979-05-15 Western Reserve Manufacturing Co., Inc. Mandrel for continuous casting of tubular metallic members
US4244420A (en) * 1978-05-17 1981-01-13 Davy-Loewy Limited Apparatus for feeding a horizontal continuous casting mold
US4628987A (en) * 1984-01-10 1986-12-16 Pont-A-Mousson S.A. Apparatus for continuous vertical casting of iron tube
US5279353A (en) * 1992-06-04 1994-01-18 Nielsen Sr William D Method and apparatus to effect a fine grain size in continuous cast metals
US20200122228A1 (en) * 2017-07-18 2020-04-23 Tupy S.A. System for the Production of a Metal Component by Continuous Casting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758902A1 (de) * 1968-08-31 1971-04-01 Kabel Metallwerke Ghh Dornhalter fuer Stranggussanlagen zum horizontalen Giessen von Rohren
EP1645349A1 (de) * 2004-10-08 2006-04-12 Sgl Carbon Ag Einteilige Stranggusskokille aus Graphit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE280717C (en)) *
US777561A (en) * 1904-02-23 1904-12-13 Anthony Huhn Apparatus for forming pipe or other articles in continuous lengths.
US1503479A (en) * 1918-12-02 1924-08-05 Coats Allan Process and apparatus for the continuous casting of rods, bars, and the like
US2130202A (en) * 1936-08-19 1938-09-13 Tama Manuel Continuously casting pipe
US2136394A (en) * 1935-06-29 1938-11-15 Frank F Poland Casting metal
US2264288A (en) * 1939-04-13 1941-12-02 American Smelting Refining Apparatus for continuously casting metals

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE280717C (en)) *
US777561A (en) * 1904-02-23 1904-12-13 Anthony Huhn Apparatus for forming pipe or other articles in continuous lengths.
US1503479A (en) * 1918-12-02 1924-08-05 Coats Allan Process and apparatus for the continuous casting of rods, bars, and the like
US2136394A (en) * 1935-06-29 1938-11-15 Frank F Poland Casting metal
US2130202A (en) * 1936-08-19 1938-09-13 Tama Manuel Continuously casting pipe
US2277375A (en) * 1936-08-19 1942-03-24 Ajax Metal Company Continuous casting of metal tubes
US2264288A (en) * 1939-04-13 1941-12-02 American Smelting Refining Apparatus for continuously casting metals

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709640A (en) * 1950-04-20 1955-05-31 Internat Mincrals & Chemical C Vertical den for continuous superphosphate solidification
DE1240234B (de) * 1956-04-20 1967-05-11 Wieland Werke Ag Verwendung einer ofenunabhaengigen Verbundstranggiesskokille fuer das Stranggiessen von sauerstoffhaltigem Kupfer
US3346036A (en) * 1964-01-16 1967-10-10 Boehler & Co Ag Geb Process for the continuous casting of tubular products
US3375863A (en) * 1966-03-16 1968-04-02 Anaconda American Brass Co Apparatus for continuous casting metal tubes
US3435881A (en) * 1967-01-03 1969-04-01 Carbone Corp Anisotropic continuous casting mold
US3592259A (en) * 1967-12-15 1971-07-13 Wiener Schwachstromerke Gmbh Cooling means for a continuous casting mold assembly
US3736979A (en) * 1970-01-30 1973-06-05 Technica Guss Gmbh Die for tube profiles
US4000773A (en) * 1976-02-09 1977-01-04 Gus Sevastakis Die assembly for continuous vertical casting of tubular metallic products
US4154291A (en) * 1977-10-17 1979-05-15 Western Reserve Manufacturing Co., Inc. Mandrel for continuous casting of tubular metallic members
US4244420A (en) * 1978-05-17 1981-01-13 Davy-Loewy Limited Apparatus for feeding a horizontal continuous casting mold
US4628987A (en) * 1984-01-10 1986-12-16 Pont-A-Mousson S.A. Apparatus for continuous vertical casting of iron tube
US5279353A (en) * 1992-06-04 1994-01-18 Nielsen Sr William D Method and apparatus to effect a fine grain size in continuous cast metals
US20200122228A1 (en) * 2017-07-18 2020-04-23 Tupy S.A. System for the Production of a Metal Component by Continuous Casting

Also Published As

Publication number Publication date
BE487759A (en))
GB657788A (en) 1951-09-26
FR980181A (fr) 1951-05-09

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