Patent ID: 9550692
Date: 2017-01-24
CPC Classifications: C03B,C04B,Y02P

Claim:
1. A method for manufacturing a block of an infrastructure of a feeder for a glassmaking furnace, the infrastructure comprising a block self-cast in situ and sintered in situ, said method comprising: a) preparation of a self-castable unshaped product, activated and degassed under partial vacuum, b) preparation, at the place where said block is intended to be used, of a mold corresponding to the shape of said block, c) bottom feed of the mold, with at least partial removal of bubbles located at the surface of said self-castable unshaped product, activated, degassed and introduced into said mold, corresponding to the surface of said block intended to come into contact with molten glass; d) hardening of said self-castable unshaped product, activated, degassed and introduced into said mold in order to form a preform; e) optionally, mold release of said preform; f) heating-up in order to dry and sinter said preform.