GB1365858A - Manufacturing monocrystalline articles - Google Patents

Manufacturing monocrystalline articles

Info

Publication number
GB1365858A
GB1365858A GB706273A GB706273A GB1365858A GB 1365858 A GB1365858 A GB 1365858A GB 706273 A GB706273 A GB 706273A GB 706273 A GB706273 A GB 706273A GB 1365858 A GB1365858 A GB 1365858A
Authority
GB
United Kingdom
Prior art keywords
mould
base
chiller
article
single crystal
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
Application number
GB706273A
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
Application filed by Individual filed Critical Individual
Priority to GB706273A priority Critical patent/GB1365858A/en
Publication of GB1365858A publication Critical patent/GB1365858A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/14—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method characterised by the seed, e.g. its crystallographic orientation
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/52—Alloys

Abstract

1365858 Monocrystalline articles D A PETROV and A T TUMANOV 13 Feb 1973 7062/73 Heading BIS Monocrystalline articles e.g. turbine blades or magnets, are made in a mould shaped to the article and integrally joined to a bottom cavity which enlarges downwardly in the form of a truncated cone and has a horizontally extending wedge-shaped region adjacent its base defining the base of the mould by pouring molten metal into the mould, chilling the base of the mould to create at the narrow end of the wedge-shaped region abrupt supercooling of the melt wherein a single crystal is formed which rapidly propagates over the entire contours of the base and then gradually cooling the remainder of the mould from the bottom upwards to form a single crystal article. A seed crystal of chosen orientation may be present at the point wherein the single crystal forms. If desired two or more moulds may be connected at the narrow ends of the wedgeshaped regions to form a mould unit (see Figures 14 to 16 not shown) and if desired the point of connection is located over the central portion of the cooling device. A core may be placed in the mould, prior to pouring in the molten metal and removed after completion of crystallization. As shown in Figure 1, the mould 1, enclosed by heating element 2 mounted on power supply leads 3, has a main cavity A following the shape of the article to be produced and a truncated cavity B adjacent to the bottom of the main cavity. Chiller 4 is arranged under the mould and comprises a flat horizontal plate chilled with water fed through a tube extending along a passage in rod 8. Mould 1, element 2 and chiller 4 are arranged in a vacuum chamber 5 having water-cooler walls. A vertical rod 6 attached to 5 is movable vertically and also carries an internal passage which can be water-cooled. The lower end of 6 carries a support member 7 to which mould 1 may be fixed. Extending through the bottom of chamber 5 is a vertically movable rod 8 which supports and brings the chiller 4, into contact with the base of the mould. In operation the mould is suspended from support member 7 by adaptor 9.
GB706273A 1973-02-13 1973-02-13 Manufacturing monocrystalline articles Expired GB1365858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB706273A GB1365858A (en) 1973-02-13 1973-02-13 Manufacturing monocrystalline articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB706273A GB1365858A (en) 1973-02-13 1973-02-13 Manufacturing monocrystalline articles

Publications (1)

Publication Number Publication Date
GB1365858A true GB1365858A (en) 1974-09-04

Family

ID=9825890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB706273A Expired GB1365858A (en) 1973-02-13 1973-02-13 Manufacturing monocrystalline articles

Country Status (1)

Country Link
GB (1) GB1365858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899257A (en) * 1982-09-28 1999-05-04 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Process for the fabrication of monocrystalline castings
CN113825577A (en) * 2019-05-13 2021-12-21 赛峰飞机发动机公司 Mould for manufacturing a component by casting metal and epitaxial growth and related manufacturing process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899257A (en) * 1982-09-28 1999-05-04 Societe Nationale D'etude Et De Construction De Moteurs D'aviation Process for the fabrication of monocrystalline castings
CN113825577A (en) * 2019-05-13 2021-12-21 赛峰飞机发动机公司 Mould for manufacturing a component by casting metal and epitaxial growth and related manufacturing process
CN113825577B (en) * 2019-05-13 2024-01-09 赛峰飞机发动机公司 Mold for manufacturing components by casting metal and epitaxial growth and related manufacturing process
US11878338B2 (en) 2019-05-13 2024-01-23 Safran Aircraft Engines Mould for manufacturing a component by pouring metal and epitaxial growth, and associated manufacturing method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee