GB1249401A - Arc-image zone refining surface - Google Patents

Arc-image zone refining surface

Info

Publication number
GB1249401A
GB1249401A GB4552769A GB4552769A GB1249401A GB 1249401 A GB1249401 A GB 1249401A GB 4552769 A GB4552769 A GB 4552769A GB 4552769 A GB4552769 A GB 4552769A GB 1249401 A GB1249401 A GB 1249401A
Authority
GB
United Kingdom
Prior art keywords
rod
arc
image zone
refining surface
sept
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
GB4552769A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1249401A publication Critical patent/GB1249401A/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
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/22—Heating of the molten zone by irradiation or electric discharge
    • 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
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/22—Heating of the molten zone by irradiation or electric discharge
    • C30B13/24—Heating of the molten zone by irradiation or electric discharge using electromagnetic waves

Abstract

1,249,401. Zone-melting. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 16 Sept., 1969 [16 Sept., 1968], No. 45527/69. Heading BIS. In the passage through a rotating refractory rod 13 of a molten zone 15 formed by focusing heat from an arc lamp 11, by means of an ellipsoidal mirror 12, at a point 14 on the surface of the rod, an auxiliary heating element 16 in the form of a platinum wire wound on a quartz tube surrounds the resolidified rod.
GB4552769A 1968-09-16 1969-09-16 Arc-image zone refining surface Expired GB1249401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6744168 1968-09-16

Publications (1)

Publication Number Publication Date
GB1249401A true GB1249401A (en) 1971-10-13

Family

ID=13345001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4552769A Expired GB1249401A (en) 1968-09-16 1969-09-16 Arc-image zone refining surface

Country Status (4)

Country Link
DE (1) DE1946679A1 (en)
FR (1) FR2018182A1 (en)
GB (1) GB1249401A (en)
NL (1) NL6913995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607525A1 (en) * 2011-12-21 2013-06-26 Siltronic AG Method and apparatus for producing a single crystal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2125177B1 (en) * 1971-02-17 1974-04-26 Dubuit Jean Louis
DE4039546A1 (en) * 1990-12-11 1992-06-17 Battelle Institut E V DEVICE FOR PRODUCING LOW-ERROR CRYSTALS IN THE ZONE MELTING PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607525A1 (en) * 2011-12-21 2013-06-26 Siltronic AG Method and apparatus for producing a single crystal
US9422634B2 (en) 2011-12-21 2016-08-23 Siltronic Ag Method and apparatus for producing a single crystal

Also Published As

Publication number Publication date
NL6913995A (en) 1970-03-18
DE1946679A1 (en) 1970-04-02
FR2018182A1 (en) 1970-05-29

Similar Documents

Publication Publication Date Title
NL167237B (en) FLAME ARC MELTING FURNACE.
IT1067834B (en) ARC WELDING PROCEDURE WITH COOLING FROM THE REVERSE SIDE
ES348270A1 (en) Electric lamp and method of manufacture
GB1249401A (en) Arc-image zone refining surface
FR2444289A1 (en) REPRODUCTION MACHINE WITH MOBILE DOCUMENT HOLDER
BE749479A (en) SOURCE FOR ARC WELDING WITH CONTROLLED STRAIGHTENER WITH IMPROVED POSITIVE START-UP CHARACTERISTICS
GB1028054A (en) A shaft furnace for the continuous drawing of quartz tubes
GB1149473A (en) Induction plasma torch
FR2378723A1 (en) GLASS MELTING PROCESS AND OVEN
JPS51134341A (en) Welding wire for heat resistant alloy
JPS5261898A (en) Heat filament arc type ion source
GB1254739A (en) Arc-image zone refining furnace
FR1308719A (en) Process for preparing light alloy wires for arc welding
IT1021775B (en) PROCESS AND DEVICE FOR THE CONTROL OF METAL MELTING UNDER ELECTROFUSED SLAG
JPS5232005A (en) Crosssectional assembly components made from heat insulating refractory materials
GB1115795A (en) Improvements in or relating to furnaces
US3590216A (en) Arc-image zone refining furnace
SU712212A1 (en) Automatic regulator of tool to work surface spacing
FR1393081A (en) Electric furnace, especially for melting metals
ES400611A1 (en) Control of flow of glass to a glass ribbon being drawn
GB1120588A (en) Improvements in arc welding electrodes
SU1686537A1 (en) Decorative light source
SU494448A1 (en) The method of controlling the blowing of the filament when forming it from the melt
Berezutsky et al. Some Thermodynamic Properties of Au-Co Melts
SU500673A1 (en) Electroslag remelting furnace