Cast Iron Plates
Dandong Foundry produced several types of
cast iron plates for our clients in USA.
Cast iron plates are usually made by grey iron
ASTM A48 CL 30, CL 35, CL 45,
ductile iron ASTM A536 60-40-18,
65-45-12, 70-50-05, 80-60-03.
They have higher wear resistance, corrosion and pressure resistance.
In order to get better quality, especially reducing the casting
defects inside and on the surface, we produced iron plates by
resin sand molding,
although the intensity of this molding is very high, but some
iron casting defects
such as sand holes and clip sands will still appear.
It is mainly because sand cleaning is not thorough. There is
residual sand in the mould. Secondly, the washing of iron liquid to
the mould wall could cause the sand holes either.
In order to improve the sand hole defects, the iron foundries should
use the ceramic pipes for the cast gates. The ceramic pipes are easy
to use, they have smooth flow and resistance to molten iron. It can
improve the layout of gating system, casting quality and finished
product ratio, and avoid sand holes and clip sand defects in
cast iron plates after machining and grinding
raw plate castings in the resin sand mold