Hänchen produces lightweight carbon products using the so-called filament-winding method. Specially developed by Hänchen, this method makes it possible to design H-CFRP® components for mechanical engineering in small batches.
The special winding method is precisely adapted to specific applications by varying the amount and direction of the fibers.
Lightweight refers to a type of design, which aims to reduce as much as possible the weight of components. The geometries of the individual components can be optimized, for example to design especially energy-efficient systems. But lightweight design materials also have high potential. These include:
Metallic lightweight design materials include e.g.
The technical sector uses mostly
for making composite materials.
CFRP, colloquially called carbon, stands for carbon fiber reinforced plastic and is a composite material consisting of carbon fibers embedded in a plastic matrix.
Carbon fibers are industrially produced fibers made of carbonic materials that are converted into carbon with a graphite-like atomic arrangement using special methods. A single carbon fiber has a diameter of about 5 to 10 micrometers.
|Density||1.6 to 2 g/cm3|
|Filament diameter||5 to 10 μm|
|Tensile strength||up to 5,000 MPa|
|Tensile E modulus||180 to 500 GPa|
|Elongation at break||1 to 1.5 %|
|Coefficient of thermal expansion||-1.5 to 0.1*10-6/K|
Developed by Hänchen, H-CFRP® is a high load capacity composite made of carbon fiber and other components, refined to form a lightweight construction material.
The carbon composite CFRP is an anisotropic material and therefore has to be designed specifically for the respective requirements.
Defined fiber layers and numbers of fibers result in very different elastic moduli, and levels of component strength and bending stiffness. The direction and amount of the fibers are determined by the designer to reach the planned properties.
The carbon fibers are embedded in a plastic, the so-called matrix, and thus fixed. Which amounts and combinations of which type of fiber and matrix material are used must be decided depending on the application in question.
When designing H-CFRP® components, it must be decided which components are to be carbon-based, and which necessitate metallic materials.
Hänchen's special winding technology makes it possible to embed metallic ends directly into the carbon base material, since conventionally bonded joints won't withstand the very high stress, e.g. in hydraulic applications.
Pure CFRP is of limited suitability for mechanical finishing. For this reason, when producing H-CFRP®, a hard surface is embedded, thus sealing the carbon base body.
This enables cross-hatching for a low-friction and wear-resistant sliding surface.