Centrifugal Cast Bronze
Centrifugal casting bronze:
Due to static & investment casting method the physical properties of have increased up to 30% such as tensile, creep, & fatigue strength. Centrifugal cast bronze metal purity withstands greater overload & strain without fracture. Consequently the blowholes, porosity, & inclusions of centrifugal cast brone eliminated before finish machining.
Thousands of dies are available to eliminate the expense of buying, storing, maintaining, & insuring patterns.
The centrifugal casting bronze method provides economical production of a diversified range of sizes, shapes, & quantities. That will not only waste expensive machining time on defective parts but also significantly reduce the material waste.
In the centrifugal method the high compressive pressure literally forge the molten metal. Which exerted by the centrifugal force. As a result we often call Centrifugal cast bronze is “liquid forgings”.
Key characteristics of centrifugal cast bronze emerge from the “molecular packing” action common only to the high-velocity centrifugal casting method:
Since the parts are formed under pressures plenty of times that of gravity, they exhibit a denser, closer-grained structure with greatly improved physical properties.
centrifugal cast bronze unlike conventional gravity or static castings that chill from both the inside & outside surfaces, centrifugal cast bronze freeze from the outside surface inward. The result is a part free of shrinkage cavities, gas pockets, & blowholes.
In the work of spinning, heavier metal is forced outward, displacing the lighter oxides & impurities. Meanwhile causing them to “float” inward toward the central axis. Later in the boring operation it will remove the them.