Patent application number | Description | Published |
20110309547 | DEVICE FOR MAKING A PART OF A COMPOSITE MATERIAL BY RESIN-TRANSFER MOULDING - The invention relates to a device ( | 12-22-2011 |
20130069281 | DEVICE FOR MANUFACTURING A COMPOSITE PART BY RESIN INJECTION MOULDING - A device for manufacturing a part in composite material by resin transfer moulding and method is provided according to the present disclosure. The device includes a manufacturing mould in which at least one preform is intended to be arranged of the part intended to be impregnated with resin during a resin transfer process. The mould is subdivided into a die and at least one movable structural element intended to be indexed on the die to form an assembly, the assembly forming a cavity corresponding to a shape of the part to be manufactured. The mould is associated with at least one positioning frame having a low coefficient of thermal expansion in at least one dimension, the positioning frame being designed to allow the indexing and holding in position of the at least one movable structural element, corresponding to at least one singularity, on the die. | 03-21-2013 |
20130079434 | PROCESS FOR MANUFACTURING A PART MADE OF A COMPOSITE HAVING A HOLLOW CORE - A method for manufacturing a part in composite material with a hollow core is provided that includes applying at least one adhesive layer on an open surface of the hollow core. The adhesive layer is a blocking polymerizable adhesive layer having, after polymerization, sealing properties relatively to a resin and capable of preventing its diffusion towards an inside of the hollow core. Subsequently, the blocking adhesive layer is polymerized so as to achieve sealing of the hollow core. Additionally, various parts manufactured according to the methods of the present disclosure are also provided. | 03-28-2013 |
20140197567 | COMPACTING AND INJECTION MOLD FOR A FIBER PREFORM FOR FABRICATING A TURBINE ENGINE GUIDE VANE MADE OF COMPOSITE MATERIAL - A compacting and injection mold for a fiber preform is for use in fabricating a turbine engine guide vane out of composite material. The mold includes a shell forming a trough that is to receive the fiber preform and that is closed in leaktight manner by bottom and top covers, compacting blocks arranged inside the trough each having a surface pressing normally against a surface of the fiber preform that is to be compacted, and closure blocks arranged inside the trough. Each closure block has a surface pressing normally against a surface of a compacting block and does not have a surface in contact with the fiber preform. | 07-17-2014 |
20150218362 | IMPREGNATION PROCESS FOR A FIBROUS SUBSTRATE, A LIQUID (METH) ACRYLIC SYRUP FOR THE IMPREGNATION PROCESS, ITS METHOD OF POLYMERIZATION AND STRUCTURED ARTICLE OBTAINED THEREOF - The present invention relates to an impregnation process for a fibrous substrate, a liquid composition for implementing this process and the obtained impregnated fibrous substrate. The impregnated fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. In particular the present invention deals with an industrial process for impregnating a fibrous substrate or long fibers with a viscous liquid composition containing mainly methacrylic or acrylic components. This viscous composition is called hereafter liquid (meth) acrylic syrup. The invention concerns also a fibrous substrate pre-impregnated with said syrup which is useful for manufacturing mechanical or structured parts or articles. More particular the impregnation of fibrous substrate with the (meth) acrylic syrup is achieved in a closed mould. The present invention concerns also manufacturing process for manufacturing mechanical or structured parts or articles and three-dimensional mechanical or structured parts obtained by this process. | 08-06-2015 |
20150258742 | PROCESS FOR MANUFACTURING A THERMOPLASTIC COMPOSITE PART IN A CLOSED MOULD, WITH INJECTION INTO A COLD MOULD - A process for manufacturing a part made of thermoplastic composite material including a fibrous reinforcement and a matrix of thermoplastic polymer based on a thermoplastic polymer which impregnates said fibrous reinforcement, which process includes: a) a step of impregnating said dry fibrous reinforcement, by injection onto said reinforcement, of a precursor of said polymer, and moulding, with the polymerization step b) being simultaneous with the impregnating and moulding step and with the regulating temperature T2 for said mould being kept constant throughout the moulding cycle, and with reheating of the internal surface of the mould, just before said injection, using a heating means which is external to the mould and removable, with c) demoulding of the part, and d) optional continuation of the polymerization, if said polymerization is partial at demoulding, in a separate step outside the mould, by annealing in an oven at an annealing temperature. | 09-17-2015 |
20150273772 | METHOD FOR MANUFACTURING A COMPOSITE THERMOPLASTIC PART BY VACUUM INJECTION-COMPRESSION-MOLDING, DEVICE FOR THE IMPLEMENTATION THEREOF AND RESULTING PART - A method for manufacturing a composite part including a fibrous reinforcement and a thermoplastic polymer matrix, which includes the steps of i) depositing the fibrous reinforcement in a two-part mold having a seal compressible by evacuating said mold having no vent, ii) filling the evacuated mold by injecting, in the molten state, a two-component reactive system made of a reactive thermoplastic prepolymer, the injection being carried out using a device having two distinct compartments for each one of the two reactive components mixed in a static mixer, followed by a compression and compaction of the content of the mold, and iii) removing the part from the mold, without any finishing treatment. Further, a device for implementing said method, to the resulting part and to the use of said method in an “in-mold” assembly method. | 10-01-2015 |
20160032080 | LIQUID (METH)ACRYLIC SYRUP FOR IMPREGNATING A FIBROUS SUBSTRATE, METHOD OF IMPREGNATING A FIBROUS SUBSTRATE, COMPOSITE MATERIAL OBTAINED FOLLOWING POLYMERISATION OF THE PRE-IMPREGNATED SUBSTRATE - The present invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate. The present invention relates in particular to a viscous liquid syrup mainly containing methacrylic or acrylic components. The invention also relates to a process for manufacturing such a syrup. The invention also relates to a process for impregnating a fibrous substrate or long fibers with said viscous liquid syrup. The invention also relates to a fibrous substrate preimpregnated with said syrup, which is useful for manufacturing mechanical or structured parts or products. | 02-04-2016 |