Application & Technology
Metal Working

In the metalworking industry, SOL offers technological solutions and equipment for: COMBUSTION: The combustion based on pure oxygen (instead of air) in metalworking processes meets the fundamental needs at the basis of the reorganisation of metalworking companies. These needs may be summarised in three words: ENERGY, QUALITY, ENVIRONMENT. ENERGY: because when smelting cast iron and the most important non-ferrous metals oxy-combustion can save a large amount of fuel. QUALITY: because oxy-combustion makes it possible to check the process with greater precision and consequently also to set very high qualitative standards for the finished products. ENVIRONMENT: because oxy-combustion is an ecological technique which can reduce the volume of gaseous emissions. THERMAL TREATMENTS: using protective atmospheres based on technical gases instead of those that are self-produced with gas generators during the thermal treatment of metals makes it possible to have: STRICT CONTROL OF RESULTS, possible because of the constant composition of protective atmospheres based on technical gases QUALITY CERTIFICATION WITHIN PRECISE TOLERANCE LIMITS, a necessary requisite to compete on an international level that in some cases may be obtained only by using technical gases VERSATILITY OF USE IN FLEXIBLE MANUFACTURING SYSTEM CONTEXTS, possible because of the ductility of technical gas atmospheres BETTER PROTECTION AGAINST THE RISKS OF ENVIRONMENTAL POLLUTION, connected to the possibility of controlling technical gas mixtures and to their purity EASINESS OF MANAGEMENT, because with technical gases highly specialised personnel for working generators is no longer necessary. OUTGASSING: the quality of finished products begins since the first stages in the working of raw materials. This is the reason that lies behind SOL's work in promoting the use of gas for treating smelt metals such as:

  • BRASS
  • ALUMINIUM
  • ZINC
  • CAST IRON.

KEYING AND EXTRUSION: the cryogenic properties of nitrogen are widely exploited in the metalworking industry. The shrinkage provoked by intense cooling of the metal parts immersed in liquid nitrogen has proven to be the best way of keying mechanical details without causing structural modifications in the materials. By cooling the extrusion die of the aluminium with nitrogen, the speed of extrusion may be increased, thus improving the surface of the finished products.