The patented Properzi Self-Annealing Microrolling® (SAM) method makes use of the Properzi Microrolling® technology and replaces the conventional drawing/annealing processes while providing tremendous energy savings.
Giulio Properzi’s patented idea is based on the Properzi Microrolling® process and a fundamental concept of physics: the Law of Conservation of Energy that states energy can neither be created nor destroyed but can be changed from one form to another.
It is a sophisticated machine consuming only 80-90 kWh/t while obtaining the desired elongation of the wire, usually around 30%, for the subsequent drawing process in Multi-Wire Machines.
While in a Drawing Machine the wire must remain at low temperature, whereas a Rolling Mill can work at high temperature.
The rolling power, as theory teaches, is totally transformed into heating energy and a part of it increases the temperature of the wire during the rolling process to levels above the annealing temperature.
This is the brilliant reasoning behind our patented idea that will probably change every drawing shop.
- No threading – No injuries
- No time lost
- No annealer cabling
- Easier erection
- No dedicated transformer
Roundness of the 2 mm (1.8 mm) wire fully matches the requirements of the subsequent multiwire drawing operation.
The first SAM line, equipped with 8 rolling stands, is currently in operation at Anglia Metal in the U.K. It is very compact and operates at a production rate of 27 m/sec producing 2 mm wire, but it can also be configured to produce 1.8 mm wire. While utilizing only 6 rolling stands, the SAM can produce 2.6 mm wire at an exceptional production rate of 5 tph.
Thanks to its characteristics, the Properzi Microrolling® Process is not only ideal for breakdown of nonferrous wire of Cu, Zn or Al, but also serves to resolve many of the problems associated with hot, warm or cold processing of their alloys. This advantage is made very clear when confronted with particularly difficult to draw materials such as Copper-Phosphorus, Copper-Zinc, mechanical alloys of Aluminium, composite or clad materials, Tantalum, Titanium or other “exotic” materials and alloys.