There are several ways to produce metal fibers,which can then be transformed into knitted,braided, woven or non-woven products that resist high temperatures or provide electrostatic protection or electromagnetic shielding.
Bundle drawing
The most common technology is known as bundle drawing. Several thousands of filaments are bundled together in a so-called composite wire,a tube which is drawn through a die to further reduce its diameter. The covering tube is later dissolved in acid, resulting in individual continuous metal fibers. This composite wire is drawn further and allows for the production of a continuous metal fiber bundles in a very wide range of diameters and with lengths of up to several kilometers.
Foil shaving
With foil-shaving technology, fibers with diameters down to 14 µm and a more rectangular cross-section are feasible.
This produces semi-continuous bundles of fibers or staple fibers.
Melt spinning
Melt spinning produces semi-continuous fibers via rapid solidification of liquid metal onto a rotating cooled wheel. The resulting fibers are coarse, typically above 40µm fiber diameter up to 250µm and have a kidney shaped cross-section
Hunan Huitong is the largest producer for bundle drawing metal fibes in China and yearly produce and sell bundle drawing continuous fiber 500 tons per year, warmly welcome send us inquiry on metal fibers.