SPRINGS AND SPACERS
The springs for diamond wire assembly are made from special Carbon steel,
class B UNI 3823, with wire diameters of 0.8 1 1.2 1.3 1.4 mm. and
are supplied in the following standard sizes: H12 15 20 22 25 30.
All the springs undergo special heat treatment for stress relief and hardening
and tempering, and are then flattened and coated with protective antioxidizer
oil. To guarantee uniformity in material and tolerance, the spacers are produced
by turning; they then undergo electrolytic galvanising to ensure greater resistance
to atmospheric agents. The spacers come in the following standard sizes: 8x3
8x4 8x4 conic 8x5 conic.