초록 ▼

A method for the adhesive bonding of refractory parts wherein the refractory parts used are porous or capable of becoming porous by thermal treatment; a layer of thickness between 0.1. and 1 mm is interposed between the refractory parts, which layer is essentially formed of an adhesive which, after

A method for the adhesive bonding of refractory parts wherein the refractory parts used are porous or capable of becoming porous by thermal treatment; a layer of thickness between 0.1. and 1 mm is interposed between the refractory parts, which layer is essentially formed of an adhesive which, after thermolysis, leaves a porous refractory residue, and fillers constituted by refractory particles of dimensions varying between 1 and 150 microns; the adhesive is thermolyzed so that a porous bond containing the said fillers is made between the porous refractory parts; then the assembly consisting of the refractory parts and the porous bond is densified by chemical vapor deposition of a refractory material.

대표청구항 ▼

Method for bonding together into an integral assembly preformed members each comprised of a composite refractory material which is porous or become porous upon pyrolysis, said method comprising the following steps: assembling said members with a bonding layer between mutually adjacent faces thereof,

Method for bonding together into an integral assembly preformed members each comprised of a composite refractory material which is porous or become porous upon pyrolysis, said method comprising the following steps: assembling said members with a bonding layer between mutually adjacent faces thereof, said bonding layer consisting essentially of an adhesive which upon pyrolysis leaves a porous refractory residue, and a filler constituted by refractory particles of dimensions comprised between 1 and 150 microns, said layer having a substantially constant thickness which has a value selected in the range of 0.1 to 1 mm; subjecting the thus-formed assembly to pyrolysis to create between the members thereof a porous refractory bond containing said filler between the mutually adjacent faces of said members, and densifying the pyrolyzed assembly by chemical vapor deposition into the pores thereof of a refractory material, whereby said densifying refractory material is deposited simultaneously and continuously in the pores of said bond and of the adjacent member to produce an integral densified assembly.