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Manufacturing:
Metal Casting
Metal
Casting Techniques
Chemically
Bonded Sand Molding Processes -
This section describes the
molding processes that use chemical binders
mixed with sand to produce a mold. Since
their introduction to the foundry, they
have gained wide acceptance for the production
of molds.
Some chemical binder systems
will bond or cure the mold through a chemical
reaction established during the sand and
binder mixing cycle, while other chemically
bonded molding processes may require gassing
of the sand mixture, or heat applied to
the sand mixture to complete the cure. The
simplicity of the chemical system usually
makes quality control less complex and results
more consistent.
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