Method and means for the assembly of parts of gasifiable patterns used in foundry work

摘要

A method for assembling the parts of gasifiable patterns for investment casing in foundry work through applying a layer of a material with adhesive properties to at least one surface which is joined to at least one part of the pattern is characterised in that the applied layer is a regular film of constant thickness having a surface area identical to the joining surface of the pattern part. The pattern may be formed of foamed polymer. A means for effecting this method comprises a reservoir 1 connected to at least one lipped nozzle 2 which is fixed while coating takes place and a moving support 7 for the pattern parts 5 which are to be coated. The nozzle is supported by a positioning means 4 which is adjustable so as to move and rotate along and around its axis.