Industrial investment casting process
The process that must be followed to obtain a good product is effective is all
its steps are rigorously followed, such as is the case with investment casting
or lost wax casting. The steps this industrial process follows have a set duration
that must not be shortened nor lengthened.
During the casting cycle, there are a number of diverse and atypical factors
that intervene, such as liquid solids (plastic waxes, silicas, water, binders),
temperature, physical and chemical elements (oxygen, argon, helium, borax),
mechanical processes and metals that are centrifuged, pressed, absorbed
and finally cooled.
Controlling and monitoring these processes is a complex task that requires
the most sophisticated methods and equipment available. All these considerations
shed light upon the complex nature of the investment casting industrial process.
its steps are rigorously followed, such as is the case with investment casting
or lost wax casting. The steps this industrial process follows have a set duration
that must not be shortened nor lengthened.
During the casting cycle, there are a number of diverse and atypical factors
that intervene, such as liquid solids (plastic waxes, silicas, water, binders),
temperature, physical and chemical elements (oxygen, argon, helium, borax),
mechanical processes and metals that are centrifuged, pressed, absorbed
and finally cooled.
Controlling and monitoring these processes is a complex task that requires
the most sophisticated methods and equipment available. All these considerations
shed light upon the complex nature of the investment casting industrial process.
Master Pattern
The investment casting process starts off with the master pattern. To obtain an adequate reproduction it is essential to follow these rules:
1º
The master pattern must have
a constant thickness
a constant thickness
2º
The master pattern's surface must
be sanded with emery paper 1200 grit
be sanded with emery paper 1200 grit
3º
The surfaces must not be polished
if they have blunt edges
if they have blunt edges
4º
The master patterns must be properly
stripped of oxides, varnishes, paints,
plating baths, enamels, and adhesives
stripped of oxides, varnishes, paints,
plating baths, enamels, and adhesives
5º
All welds must be in perfect condition
(tin should be avoided)
(tin should be avoided)
6º
The gates and runners must be placed
in the correct way
in the correct way
