公开(公告)号：US3681033A

公开(公告)日：1972-08-01

申请号：US3681033D

申请日：1969-01-31

Applicant: GEN MOTORS CORP

Inventor： BLYEIL CARL E

IPC: C30B15/06 ,  C30B29/64 ,  B01J17/18

CPC classification number: C30B15/06 ,  Y10T117/1036 ,  Y10T117/1048 ,  Y10T117/1068

Abstract: A METHOD AND APPARATUS IS DESCRIBED FOR HORIZONTALLY PULLING CRYSTAL RIBBONS FROM A MELT PARALLEL TO THE MELT SURFACE. THE HEAT OF CRYSTALLIZATION IS SELECTIVELY REMOVED FROM ONE END OF A SEED CRYSTAL BY A HEAT ABSORBING MEANS PERPENDICULAR TO THE MELT SURFACE. MEANS ARE PROVIDED TO APPROPRIATELY SUPPRESS NET LOSS OF THE HEAT OF FUSION FROM THE BALANCE OF THE SEED IN CONTACT WITH THE MELT TO CONTROL THE THICKNESS OF THE RESULTANT RIBBON.

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