A partner, not a supplier
Technology to cater for all customer needs
As Lamiflex uses the 8 technologies that are the most used in the sector, it is able to identify with the customer the technology that is most suitable and able to offer the highest performance, without forgetting maximizing economies of scale. Lamiflex designs and manufactures products, components and customized solutions, working alongside the customer to provide complete assistance in all the development and prototyping phases.
Lamiflex places the following 8 technologies at its customers’ disposal: pultrusion and pullwinding, wrapping, progressive and multi-chamber press, autoclave, RTM, LPMC, solvent impregnation, filament winding.
Pultrusione e pullwinding
This technology enables continuous profiles to be obtained with unidirectional reinforcement fibres for pultrusion, or with adjustable angles with pull-winding, in order to optimize the mechanical properties of the profile, enabling it to withstand bending, tensile and torsional stresses. The specific chemical and mechanical requirements of the product are satisfied by using carbon or glass reinforcement fibres and resins on an epoxy or vinyl ester base.
Ideal for applications with complex designs, this technological solution involves the progressive laying of pre-impregnated reinforcements around metal mandrels for cylindrical shapes and around sacrificial mandrels for complex shapes in which the mandrel cannot be removed once the composite has polymerized.
The arrangement of the layers and the specific orientation of the fibres transform the product into a duct with optimal chemical and mechanical properties for each application.
Progressive and multi-chamber press
This is a process that enables semi-finished items and finished products to be obtained that have a planar geometry and a spatial arrangement of the reinforcements that is 100% modifiable both along the flat surface and thickness of the laminate, thereby creating laminates with variable stiffness for all needs. Reinforcement fibres with different chemical structures – from carbon to cotton and polyester – enhance mechanical performance and exploit the unique properties of the different products. The progressive press produces continuous laminates of variable lengths greater than 100 m, which can be wound on coils.
By controlling temperature and pressure through appropriate cycles and ramps, autoclave processing enables pre-impregnated reinforcements to be compacted and polymerized which have been suitably arranged beforehand on moulds with relatively complex forms. This technology is the type most used in the composite production sector for high-end products, where mechanical performance is the main goal of the final component.
Resin Transfer Moulding: this high-end technology weds superior impregnation of reinforcements (for the purpose of optimizing the mechanical performance of the product) to industrial mass production.
The system is based on the injection into a closed mould – in a vacuum and pre-loaded with dry reinforcements – of resin with regulated viscosity to ensure that the mould is filled perfectly. This process is used alongside light RTM, which combines the features of the standard RTM process – injection of resin into a closed mould – with the use of composite or resin moulds. The repeatability of the manufactured items and of production performance means that it can also be used for limited series, guaranteeing an excellent quality-price ratio.
Low Pressure Moulding Compound – Press-forming of polyester or vinyl ester resin-base compounds loaded with glass or carbon with a random planar arrangement. This solution is used for long production runs of components with relatively simple and planar shapes in which the composite minimizes the weight of the component whilst preserving the necessary mechanical features.
This technology is used to produce pre-pregs, which are fabrics made of carbon or glass fibres, or other types of reinforcement, impregnated with resin. The procedure involves impregnating the fabric in a resin bath, which is controlled to optimize the weight and adapt the material to a wide range of production needs. The process is highly automated and optimizes costs and benefits.
Filament Winding is a process in which continuous fibres, impregnated with resin, are wound onto a cylindrical support. The orientation and tension of the fibres can be controlled with a large degree of freedom, so that the mechanical properties of the product can be adapted to the technical specifications. It is a technology with a high level of automation that ensures optimization of the cost/performance ratio.