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20th March 2019, Mindelheim

BBG scores at JEC with moulds for CFRP production

The cross-sectional model of a high-pressure vessel made of CFRP fibre braid at the joint stand of Bayern innovative at JEC World 2019. © BBG

The cross-sectional model of a high-pressure vessel made of CFRP fibre braid at the joint stand of Bayern innovative at JEC World 2019. © BBG

The mould, machine and plant manufacturer BBG is satisfied with the Paris composite trade show JEC World, which took place this month. The cross-sectional model of a high-pressure vessel made of CFRP fibre braid proved a crowd-puller at the joint stand of Bayern innovativ. Both the corresponding mould and the production line for the window frames of the Airbus A 350, which are made of carbon fibre reinforced plastic (CFRP), were supplied by BBG.

Above all, Asian visitors and experts interested in hydrogen cars were curious about the high-pressure vessel. BBG developed and manufactured the HD-RTM mould (high-pressure resin transfer moulding) for its series production. A hollow body made of CFRP fibre braid with a high fibre volume content is placed into the two-part mould.

Subsequently, a low-viscosity resin-based composite is injected under high pressure, thus penetrating the braid and enclosing the individual fibres uniformly and without leaving any voids. To ensure process reliability, BBG has developed and integrated a sealing system for precise production under high pressure, which facilitates industrial production without any complex processing steps further downstream.

BBG developed, manufactured and delivered the production line for the series production of CFRP window frames for the Airbus A 350. The customer is ACE Advanced Composite Engineering, located at Immenstaad on Lake Constance, an Airbus supplier that produces the components at its Hagnau site.

BBG has developed and manufactured the HD-RTM mould for the high-pressure vessel made of CFRP fibre braid. © Rehau

BBG has developed and manufactured the HD-RTM mould for the high-pressure vessel made of CFRP fibre braid. © Rehau

BBG delivered several BFT-C mould carrier systems designed as presses with clamping forces of 100 t in combination the corresponding mould turning stations. The moulds are heated in the in-mould turning station that features a heating chamber and are then inserted with the preforms into the mould carrier BFT-C, where resin is injected, and the component is baked. After the mould in the mould carrier is opened, the component is demoulded at the demoulding station. The window frames can then simply be removed from there.

BBG, a family-owned business which is located in Mindelheim/Allgäu and is run by Hans Brandner. In addition to end-to-end production lines, BBG designs, develops and manufactures moulds for processing polyurethane (PUR), PVC, TPE and other elastomers, as well as a wide range of composite materials.

These include production processes such as PUR-CSM (PUR-Composite Spray Moulding), LFI (Long Fibre Injection), RTM (Resin Transfer Moulding), SMC (Sheet Moulding Compound) or GMT (Glass Mat Reinforced Thermoplastic. The company also focuses on solutions for light-weight construction, the processing of composites and the production of fibre composite components in a large number of industries.

www.bbg-mbh.com

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