US2473221A - Method and apparatus for the continuous casting of metal tubes - Google Patents

Method and apparatus for the continuous casting of metal tubes Download PDF

Info

Publication number
US2473221A
US2473221A US732734A US73273447A US2473221A US 2473221 A US2473221 A US 2473221A US 732734 A US732734 A US 732734A US 73273447 A US73273447 A US 73273447A US 2473221 A US2473221 A US 2473221A
Authority
US
United States
Prior art keywords
mold
tube
wall
mandrel
passage
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
US732734A
Other languages
English (en)
Inventor
Rossi Irving
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
Original Assignee
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 to LU29058D priority Critical patent/LU29058A1/xx
Priority to BE482681D priority patent/BE482681A/xx
Application filed by Individual filed Critical Individual
Priority to US732734A priority patent/US2473221A/en
Priority to GB12619/48A priority patent/GB643122A/en
Priority to CH265256D priority patent/CH265256A/de
Priority to FR967510D priority patent/FR967510A/fr
Priority to DEP37554D priority patent/DE823483C/de
Application granted granted Critical
Publication of US2473221A publication Critical patent/US2473221A/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
    • 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

  • the inside of the tube i. e. through a mandrel which forms the inside wall.
  • the cooling is entirely from the inside, rather than from the outside, or from both outside and inside as in prior methods.
  • crystal growth proceeds outwardly from the inside wall rather than inwardly from the outside wall or in both directions as] in prior methods.
  • the mold wall which forms the outside wall of the tube is kept at a temperature such as to prevent any appreciable withdrawal of heat therethrough.
  • the said mold wall serves to limit the crystal growth from the inside and forms and smoothes the outer wall as the tube is withdrawn continuously therefrom.
  • the apparatus comprises a mold block I of any suitable material such as graphite, said block having a cavity 2 in its upper portion serving as a reservoir in which a pool of molten metal may be maintained, such molten metal being supplied continuously from a suitable holding furnace (not shown) through a pipe or tube 3.
  • the mold block may be supported in any suitable manner, as by a base plate 4, and may be held in place by. set screws 5, so that the block may be easily removed and replaced.
  • the mold block i Extending downwardly through the bottom of , the mold block i is a cylindrical mold passage 6 registering with a larger aperture 1 in the base plate so as to provide a through passageway for the continuous withdrawal of the formed tube.
  • water cooled mandrel 8 projects downwardly into the mold'passage 6, said mandrel comprising an outer shell 9 having an inlet conduit Ill connected thereto,.and an inner tubular battle II to cause circulation of the cooling water in the manner indicated by the arrows.
  • An outlet conduit i2 is connected to the upper end of the tube ii.
  • the bottom of the shell 9 is closed by a plate l3, but this plate is preferably provided with apertures ll which permit some of the cooling water to spray directly onto the interior wall of the solidifled tube T.
  • the exterior wall of the shell 9 is tapered slightly to allow for shrinkage as the solidified metal becomes progressively cooler.
  • the mold block may be provided with passages I5 to receive suitable heating elements by means of which the block may be maintained at any desired temperature.
  • a spray ring I6 may surround the tube below the point of emergence from the mold passage, and the cooling water applied to the outside of the tube, together with the cooling water applied to the inside through the apertures I4 carries oil the residual heat remaining in the tube after the solidification oi the molten metal which results entirely from the withdrawal of heat through the mandrel.
  • the solidified tube is withdrawn continuously, preferably by rollers (not shown), and if desired, the mandrel may be reciprocated in accordance with the teachings of Junghans Patent No. 2,135,133. That is, the mandrel 8 which provides the cooling surface and which therefore corresponds to the chilled mold of the Junghans patent, would be reciprocated, movin downwardly with the tube at the same rate at which the tube is being withdrawn, and moving upwardly at a more rapid rate.
  • a method for the continuous casting of metal tubes which comprises shaping the interior of the tube by means of a water cooled mandrel which constitutes the sole means for the withdrawal of heat to cause solidification of the molten metal, circulating cooling Water through all portions of said mandrel which are opposed to metal being solidified to cause crystal growth to proceed entirely outwardly from said mandrel, limiting the outward crystal rowth by means of a mold wall spaced from said mandrel, maintaining said mold wall at a temperature suflicient to prevent appreciable withdrawal of heat therethrough, and continuously withdrawing the solidified tube, the relative movement between the tube and the mold wall serving to smooth the outwardly growing crystals as final solidification takes place.
  • a method for the continuous casting of metal tubes which comprises shaping the interior of the tube by means of a water cooled mandrel which constitutes the sole means for the withmetal. circulating cooling water through all portions or said mandrel which are opposed to metal being solidified to cause crystal growth to proceed entirely outwardly from said mandrel, limiting the outward crystal growth by means of a mold wall spaced from said mandrel, maintaining said mold wall at a temperature sufiicient to prevent appreciable withdrawal of heat therethrough, continuously withdrawing the solidified tube, the relative movement between the tube and the mold wall serving to smooth the outwardly growing crystals as final solidification takes place, and reciprocating said mandrel in timed relation to the withdrawal of the solidified tube such that said mandrel moves downwardly with the tube at the same rate at which the tube is withdrawn, and moves upwardly at a more rapid rate.
  • a method for the continuous casting of metal tubes which comprises maintaining a pool of molten metal in a mold block having a mold passage extending therethrough, withdrawing heat to solidify molten metal entirely through a water cooled mandrel projecting into and extending throughout all portions of said mold passage wherein solidification takes place so that crystal growth proceeds entirely outwardly from said mandrel toward the wall of said mold passage and is limited thereby, maintaining said mold block at a temperature sufiicient to prevent appreciable withdrawal of heat through the wall of said mold passage and withdrawing the solidified tube continuously from said passage, the relative movement between the tube and wall of the mold passage serving to smooth the outwardly growing crystals as final solidification takes place.
  • a method for the continuous casting of metal tubes which comprises maintaining a pool of molten metal in a mold block having a mold passage extending therethrough, withdrawing heat to solidify molten metal entirely through a water cooled mandrel projecting into and ex tending throughout all portions of said mold passage wherein solidification takes place so that crystal growth proceeds entirely outwardly from said mandrel toward the wall of said mold passage and is limited thereby, maintaining said mold block at a temperature sufiicient to prevent appreciable withdrawal of heat through the wall of said mold passage withdrawing the solidified tube continuously from said passage, the relative movement between the tube and wall of the mold pasage serving to smooth the outwardly growing crystals as final solidification takes place, and reciprocating said mandrel in timed relation to the withdrawal of the solidified tube such that said mandrel moves downwardly with the tube at the same rate at which the tube is withdrawn, and moves upwardly at a more rapid rate.
  • Apparatus for the continuous casting of metal tubes comprising a mold block, said block having a cavity therein in which a pool of molten metal is maintained and having a mold passage extending through said block from said cavity to the outside, a water cooled mandrel projecting into said mold passage and having a water cooled surface extending from a point above said passage to a point below the point of final soldification, said surface forming the sole means for the withdrawal of heat to cause solidification of the molten metal, and means for maintaining said mold block at a temperature sufficient to prevent appreciable withdrawal of heat from the molten metal. whereby crystal growth proceeds entirely outwardly from said mandrel toward the wall of said mold passage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US732734A 1947-03-06 1947-03-06 Method and apparatus for the continuous casting of metal tubes Expired - Lifetime US2473221A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
LU29058D LU29058A1 (it) 1947-03-06
BE482681D BE482681A (it) 1947-03-06
US732734A US2473221A (en) 1947-03-06 1947-03-06 Method and apparatus for the continuous casting of metal tubes
GB12619/48A GB643122A (en) 1947-03-06 1948-05-07 Improvements in method and apparatus for the continuous casting of metal tubes
CH265256D CH265256A (de) 1947-03-06 1948-05-18 Verfahren und Einrichtung zum kontinuierlichen Giessen von Metallrohren.
FR967510D FR967510A (fr) 1947-03-06 1948-06-10 Procédé et dispositif de coulée en continu des tubes métalliques
DEP37554D DE823483C (de) 1947-03-06 1949-03-24 Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metallrohren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US732734A US2473221A (en) 1947-03-06 1947-03-06 Method and apparatus for the continuous casting of metal tubes

Publications (1)

Publication Number Publication Date
US2473221A true US2473221A (en) 1949-06-14

Family

ID=10008023

Family Applications (1)

Application Number Title Priority Date Filing Date
US732734A Expired - Lifetime US2473221A (en) 1947-03-06 1947-03-06 Method and apparatus for the continuous casting of metal tubes

Country Status (7)

Country Link
US (1) US2473221A (it)
BE (1) BE482681A (it)
CH (1) CH265256A (it)
DE (1) DE823483C (it)
FR (1) FR967510A (it)
GB (1) GB643122A (it)
LU (1) LU29058A1 (it)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609574A (en) * 1949-06-25 1952-09-09 Continuous Metalcast Co Inc Apparatus for the continuous casting of metal rods
US2770022A (en) * 1952-12-08 1956-11-13 Joseph B Brennan Method of continuously casting molten metal
US2853754A (en) * 1957-07-17 1958-09-30 Dow Chemical Co Continuous hollow casting
US2940143A (en) * 1956-11-09 1960-06-14 Daubersy Jean Method for the centrifugal continous casting of metals
US3124855A (en) * 1964-03-17 Baier
US3151366A (en) * 1957-12-11 1964-10-06 Howard A Fromson Method and apparatus for the casting of fusible materials
US3287773A (en) * 1963-12-03 1966-11-29 Amsted Ind Inc Method of level control for continuous casting
US3293704A (en) * 1966-02-18 1966-12-27 Howard A Fromson Method and apparatus for the casting of fusible materials
US3302252A (en) * 1963-12-03 1967-02-07 Amsted Ind Inc Apparatus for continuous casting
US3346036A (en) * 1964-01-16 1967-10-10 Boehler & Co Ag Geb Process for the continuous casting of tubular products
US3398780A (en) * 1965-07-01 1968-08-27 Phelps Dodge Copper Prod Continuous casting of tubes
US3486550A (en) * 1965-07-01 1969-12-30 Phelps Dodge Copper Prod Continuous casting of tubes
US3874438A (en) * 1971-08-30 1975-04-01 Bbc Brown Boveri & Cie Apparatus for the continuous casting or drawing of an extrusion body through a coolant body
US4236571A (en) * 1978-01-27 1980-12-02 Pont-A-Mousson S.A. Process and installation for the continuous casting of tubular products
US4257472A (en) * 1979-07-30 1981-03-24 Concast Incorporated Continuous casting of hollow shapes
US4274471A (en) * 1978-03-15 1981-06-23 Ngk Insulators, Ltd. Process for continuous casting of metals and an apparatus therefor
US20100247946A1 (en) * 2009-03-27 2010-09-30 Titanium Metals Corporation Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503479A (en) * 1918-12-02 1924-08-05 Coats Allan Process and apparatus for the continuous casting of rods, bars, and the like
US1548618A (en) * 1921-08-22 1925-08-04 Lane John Burr Apparatus for the manufacture of pipes, tubes, or analogous articles from lead or the like
US1868099A (en) * 1930-06-03 1932-07-19 Byron E Eldred Method of casting molten metals
US2135183A (en) * 1933-10-19 1938-11-01 Junghans Siegfried Process for continuous casting of metal rods
US2285740A (en) * 1938-07-01 1942-06-09 Joseph M Merie Apparatus for producing solid and tubular products from undercooled molten material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503479A (en) * 1918-12-02 1924-08-05 Coats Allan Process and apparatus for the continuous casting of rods, bars, and the like
US1548618A (en) * 1921-08-22 1925-08-04 Lane John Burr Apparatus for the manufacture of pipes, tubes, or analogous articles from lead or the like
US1868099A (en) * 1930-06-03 1932-07-19 Byron E Eldred Method of casting molten metals
US2135183A (en) * 1933-10-19 1938-11-01 Junghans Siegfried Process for continuous casting of metal rods
US2285740A (en) * 1938-07-01 1942-06-09 Joseph M Merie Apparatus for producing solid and tubular products from undercooled molten material

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124855A (en) * 1964-03-17 Baier
US2609574A (en) * 1949-06-25 1952-09-09 Continuous Metalcast Co Inc Apparatus for the continuous casting of metal rods
US2770022A (en) * 1952-12-08 1956-11-13 Joseph B Brennan Method of continuously casting molten metal
US2940143A (en) * 1956-11-09 1960-06-14 Daubersy Jean Method for the centrifugal continous casting of metals
US2853754A (en) * 1957-07-17 1958-09-30 Dow Chemical Co Continuous hollow casting
US3151366A (en) * 1957-12-11 1964-10-06 Howard A Fromson Method and apparatus for the casting of fusible materials
US3287773A (en) * 1963-12-03 1966-11-29 Amsted Ind Inc Method of level control for continuous casting
US3302252A (en) * 1963-12-03 1967-02-07 Amsted Ind Inc Apparatus for continuous casting
US3346036A (en) * 1964-01-16 1967-10-10 Boehler & Co Ag Geb Process for the continuous casting of tubular products
US3398780A (en) * 1965-07-01 1968-08-27 Phelps Dodge Copper Prod Continuous casting of tubes
US3486550A (en) * 1965-07-01 1969-12-30 Phelps Dodge Copper Prod Continuous casting of tubes
US3293704A (en) * 1966-02-18 1966-12-27 Howard A Fromson Method and apparatus for the casting of fusible materials
US3874438A (en) * 1971-08-30 1975-04-01 Bbc Brown Boveri & Cie Apparatus for the continuous casting or drawing of an extrusion body through a coolant body
US4236571A (en) * 1978-01-27 1980-12-02 Pont-A-Mousson S.A. Process and installation for the continuous casting of tubular products
US4274471A (en) * 1978-03-15 1981-06-23 Ngk Insulators, Ltd. Process for continuous casting of metals and an apparatus therefor
US4257472A (en) * 1979-07-30 1981-03-24 Concast Incorporated Continuous casting of hollow shapes
US20100247946A1 (en) * 2009-03-27 2010-09-30 Titanium Metals Corporation Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom
US8074704B2 (en) * 2009-03-27 2011-12-13 Titanium Metals Corporation Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom
CN102421549A (zh) * 2009-03-27 2012-04-18 钛金属公司 用于半连续铸造中空锭块的方法和装置及由此所得的产品
CN102421549B (zh) * 2009-03-27 2014-07-16 钛金属公司 用于半连续铸造中空锭块的方法和装置及由此所得的产品

Also Published As

Publication number Publication date
LU29058A1 (it)
DE823483C (de) 1951-12-03
FR967510A (fr) 1950-11-06
CH265256A (de) 1949-11-30
GB643122A (en) 1950-09-15
BE482681A (it)

Similar Documents

Publication Publication Date Title
US2473221A (en) Method and apparatus for the continuous casting of metal tubes
US3381741A (en) Method and apparatus for continuous casting of ingots
US3076241A (en) Graphite mold casting system
US2187720A (en) Method and apparatus for continuous metal casting
US2871534A (en) Method of continuous casting
US2983972A (en) Metal casting system
US3342252A (en) Mandrel for continuous casting mold
US3210812A (en) Continuous casting mold
US2496235A (en) Method for the continuous casting of metal slabs
US2871530A (en) Continuous casting mold, its manufacture and use
US3340924A (en) Apparatus for continuous casting of hollow billets
US2564723A (en) Apparatus for the continuous casting of metal slab
US4875519A (en) Method of manufacturing hollow billet and apparatus therefor
US3515205A (en) Mold construction forming single crystal pieces
US4719959A (en) Apparatus for continuously producing hollow metallic ingot
US4154291A (en) Mandrel for continuous casting of tubular metallic members
US4535832A (en) Continuous casting apparatus
US3730251A (en) Method of continuous casting
GB378332A (en) Method and apparatus for casting metal moulds
JPS61119359A (ja) マグネシウムまたはその合金の連続鋳造法
US3124855A (en) Baier
US2281718A (en) Method of casting metal ingots and apparatus therefor
US2367148A (en) Continuous casting
US2962777A (en) Method of and means for making castings
SU1470439A1 (ru) Способ изготовлени центробежнолитых чугунных труб