Abstract: This invention relates to a ceramic or ceramic oxide hollow body and a method for its manufacture. The ceramic or ceramic oxide hollow body of the present invention does not require the use of a binder or adhering substrate or any type of internal embedded supports. The hollow body is capable of being manufactured for any desired diameter and length and is especially suited for thick walled pipes. The ceramic hollow body is homogeneous, free of internal cracks, and highly heat stable and shock insensitive. It is produced in a continuous quasi-isothermal thermal spray process in which hot atomized ceramic or ceramic oxide particles are sprayed as a plasma onto a non-adhering highly thermally conductive internally cooled mold core. The mold core is mounted on a rotating lathe which in turn is mounted on a longitudinally movable carriage to accomplish the uniform layer thickness of the hollow body.
Type:
Grant
Filed:
September 27, 1983
Date of Patent:
October 15, 1985
Assignees:
Vereinigte Aluminium-Werke Aktiengesellschaft, Langlet, Weber KG
Abstract: Disclosed herein is a process for manufacturing ceramic or ceramic oxide hollow bodies and a method for its manufacture. The ceramic hollow bodies of the present invention does not require the use of a binder or adhering substrate or any type of internal embedded supports. The hollow body is capable of being manufactured for any desired diameter and length and is especially suited for thick walled pipes. The ceramic hollow body is homogeneous, free of internal cracks, and highly heat stable and shock insensitive. It is produced in a continuous quasi-isothermal thermal spray process in which hot atomized ceramic or ceramic oxide particles are sprayed as a plasma onto a non-adhering highly thermally conductive internally cooled mold core. The mold core is mounted on a rotating lathe which in turn is mounted on a longitudinally movable carriage to accomplish the uniform layer thickness of the hollow body.
Type:
Grant
Filed:
January 15, 1981
Date of Patent:
July 17, 1984
Assignees:
Vereinigte Aluminium-Werke Aktiengesellschaft, Langlet Weber KG