Process for the polymerization and/or crosslinking of a resin used in the composition of a composite material part by means of ionizing radiation
AssigneeSociete Nationale Industrielle Aerospatiale et
InventorDaniel Beziers
Life of this patent
Estimating the term…
Abstract
A part made of a resin-containing composite material, also having at least one insert made of a different material, is hardened by electron beam radiation in zones having a surface mass at the most equal to 4 g/cm.sup.2 and by X-radiation in zones having a surface mass above 4 g/cm.sup.2. The X-radiation, in doses up to 10 Mrad, is produced by action of the electron beam on a target placed between the part and the electron beam.
Claims8
An industrial polymerization and/or cross-linking process for a hardening resin by ionizing radiation, said resin being used in the composition of a part having a variable surface mass and having a reinforcement embedded in said resin, also having at least one insert of a different nature from said resin and said reinforcement, said process comprising the steps of supplying to said part an electron beam having an energy at least equal to 10 MeV in order to polymerize by said electron beam the resin in zones thereof having a surface mass at the most equal to 4 g/cm.sup.2 and automatically arranging a target between the part and said electron beam, in order to polymerize the resin in zones of the part having a surface mass above 4 g/cm.sup.2 by X-radiation at doses up to 10 Mrad, said target being able to produce the X-radiation under the action of said electron beam.
Dependencies are inferred from the claim text.