Economic die heaters for large presses

摘要

It is also unquestionable that products for the transportation sector such as extrusions to be used in train wagon bodies or truck trailers require a high degree of process stability regarding material properties (e.g. strength, elongation, corrosion resistance), correct profile geometries (e.g. local wall thicknesses, overall dimensions) and very often also a high profile surface quality. In addition, tight temperature control not only of the billets but also of the dies, serves for optimum press speeds, minimised scrap, long die service life times and consequently for a high productivity.