Production method and control device for developing single crystal bar in square column body
A production method and technology for single crystal rods are applied in the field of production and control devices for growing square columnar single crystal rods, and can solve problems such as uncontrollable direct growth into square columnar single crystal rods and the like.
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[0023] see figure 1 , 2 , 3, the control device of the present invention includes a seed crystal holder 1 and a rotating disk 2 that drives the seed crystal holder 1 to rotate, and an axial keyway 1- 1. There is a pin key 3 on the holder hole in the center of the rotating disk 2. The seed crystal holder 1 and the rotating disk 2 are connected together through the key groove 1-1 and the pin key 3. This connection is adopted The structure can not affect the axial up and down movement of the clamper 1 while it rotates. In order to drive the seed crystal holder to move up and down, the upper end of the seed crystal holder 1 has a flat tooth structure 1-2, and a rotating disk 2 is provided to drive the seed crystal holder to move up and down. Servo drive motor 5, the torque output shaft of the servo drive motor 5 is connected with a gear 6, which meshes with the flat tooth structure 1-2 on the upper end of the seed crystal holder. In order to realize the direct growth of monocr...
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