|
|
|
|
|
ABOUT |
|
■
History |
|
■
Present |
|
■
Future |
|
CAPABILITIES |
|
■
Steel Types |
|
■
Facilities |
|
■
Equipment |
|
■
Heat Treating |
|
■
Pattern Services |
|
INDUSTRIES |
|
■
Energy |
|
■
Construction |
|
■
General Industry |
|
■
Marine |
|
■
Specialty |
|
■
Transportation |
|
QUALITY |
|
■
ISO 9001:2000 |
|
■
PED |
|
■
Chemical Testing |
|
■
Non Destructive Testing |
|
■
Physical Testing |
|
■
Sand Testing |
|
■
Training & Certification |
|
NEWS |
|
■
Press Releases |
|
■
In the News |
|
■
Employee News |
|
CONTACT |
|
■
Sales |
|
INFORMATION |
|
■
Brochures |
|
■
Casting vs Forged |
|
■
Directions |
|
■
FAQ |
|
■
Making a Steel Casting |
|
■
Mission Statement |
|
HOME |
| |
|
|
|
 |
 |
|
|
| |
METAL CASTING - CORE MAKING |
|
| |
Metal castings are used by most people
everyday but very few have any idea of
what they are or how they are made. To
that end we have prepared the following to help
better understand the casting process. |
|
|
|
| |
| |
|
| |
|
Generally, cores are the
internal passages of castings.
Most cores at SWS are made by
mixing sand (both new and
reclaimed at SWS) with a two
part chemical binder system. A
third part, the catalyst, is
introduced the the mixed sand as
a gas to 'set' or 'cure' the
core. This core process is
referred to as a Cold Box
System. |
|
|
|
The sand and binder are mixed in
a screw type continuous mixer.
As the sand leaves the mixer it
is discharged into a blow head
magazine on top of the core
machine. |
|
|
|
|
|
|
|
The core machine will then shoot
the sand under air pressure into
the core box. The core box is
then 'gassed' with a catalyst to
cure the sand. A fume scrubber
is used to remove any excess
catalyst gas from the machine.
After the core is 'cured', it is
removed from the core box and
'finished' by removing 'fins'
from the parting lines. Complex
cores are sometimes assembled
from many smaller cores at this
point. Once the finishing
process is complete, the core is
placed on racks and staged for
use at the molding assembly
area. |
|
 |
|
| |
|
|
|
|
|
|
