Patent DE-102008023944-A1 (DE)
Title: Device for growing single color, multi-color and multi-tone monocrystals according to crucible-free flame melting procedure, comprises two storage containers for crystal substances, collecting piece, flame pipe, fire-clay pin and furnace
Inventor: VENTSEL SERGEY
IPC: C30B11/10
Filed: 2008-05-16
Abstract: The device for growing single color, multi-color and multi-tone monocrystals according to a crucible-free flame melting procedure, comprises two storage containers (1) for crystal substances, which are fastened in the device in a separate and contact-less manner and drain into a collecting piece (3), a flame pipe (31), which connects itself to a lower outlet opening of the funnel-shaped collecting piece, a fire-clay pin (6), and a furnace (5). The container is fastened in such a manner that the crystal material falls from openings of the container on the central vertical axis of the device. The device for growing single color, multi-color and multi-tone monocrystals according to a crucible-free flame melting procedure, comprises two storage containers (1) for crystal substances, which are fastened in the device in a separate and contact-less manner and drain into a collecting piece (3), a flame pipe (31), which connects itself to a lower outlet opening of the funnel-shaped collecting piece, a fire-clay pin (6), and a furnace (5). The storage container is fastened in such a manner that the crystal material falls from openings of the storage container on the central vertical axis of the device. The furnace is designed in such a manner that it allows a horizontal and vertical movement of the fire-clay pin. A horizontally and vertically movable work surface is arranged under the furnace. A horizontally turnable frame having a gear rack is fastened on the working surface and on which an electric motor is fastened, whose shaft runs vertical to the frame and is connected with a first friction wheel. A second electric drive is arranged on the work space and a second friction wheel is arranged on a shaft of second electric drive in such a manner that the gear rack forms a mechanical connection with the gear wheel so that when the gear wheel is turned the gear rack, the frame turns and such that the fire-clay pin is inclined. The second electric drive is an asynchronous electric motor. The base of the friction wheels is rounded off in a semi-circular shape and the shaft is partly surrounded by a fixed first bush. The centre of the rounded off part of the friction wheel is located on a horizontal axis so that the second friction wheel is in mechanical connection with the first friction wheel. The first bush has two lower fasteners and the second bush has two upper fasteners. The lower fastener is connected to the upper fasteners in such a manner that the upper fastener is swiveled on its horizontal axis. The pivotable part of the device is connected with the tools for swiveling of the upper fastener and the second bush on its horizontal axis. The second friction wheel is connected by a spring-groove-connection with the shaft, which has a lengthening element, where the friction wheel is fastened with a spring-nut-connection with disc and a threaded screw on to lengthening element. The connection of the upper and the lower fastener occurs through bolts with spiral shaped grooves for lubricants, where the bolts are located on the horizontal axes. The fire-clay pin has pin rows and has a three dimensional structure on its tip.