|
The material
used in pistons should have good cast ability like
high strength, high hot strength, high
strength-to-mass ratio, good resistance to surface
abrasion, good thermal conductivity and low
thermal expansion. Piston rings
are broadly-compression rings and control
(scraper) rings. Piston rings are made of high
quality cast-iron with certain percentage of
carbon, chromium, nickel and
molybdenum. |
