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Investment Casting

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The investment casting process is perfect to help our customers in investment casting to be able to make superior purchasing decisions.

Wax Injection
Imitation of the preferred investment casting is created by injection molding or for lesser volumes using speedy prototyping (SLA or SLS). These mock-ups are referred to as patterns.

Assembly of Wax Tree
Patterns are then fastened to a central wax stick, called a sprue, to form a casting. This is known as wax tree.

Ceramic Shell Building
The shell is made by submerging the wax tree meeting in liquid ceramic slurry and then into a bed of fluidized fine sands. Up to eight coatings are applied in this way depending on the shape and weight of the part.

formerly the ceramic is dry; the wax is then liquefied out, making a negative impression of the meeting within the ceramic and sand shell. This process utilizes autoclaves to uphold shell reliability.

Conventional Casting
In the conventional lost wax casting procedure, the pre-heated shell (up to 1800 deg F) is poured with molten metal by gravity filling the metal into the ceramic shell. As the metal cools, gates, sprue, the parts, and filling cup become one solid casting. Shell temperature and dissolving temperature will differ depending on the alloy.

once the metal is cooled and hard, the ceramic shell is wrecked off by tremor or water blasting.

Cut Off Of Parts
The parts are then cut away from the central sprue utilizing an elevated speed saw.

Finished Metal Investment Castings
Following minor finishing operations, or potential needed machining functions, the metal investment castings-identical to the innovative wax patterns--are prepared for shipment to the customer from our metal investment casting China foundry. We are able to offer finished cobalt alloy investment casting, steel investment casting, aluminum investment casting, stainless steel investment casting, nickel alloy investment casting and precision investment castings.

Wall Thickness
Please call for tolerance stipulation for wall thickness or any tolerances in common. As per the metal or alloy, least amount of wall thickness can vary from 0.04 inches to 0.08 inches.

  • No flash or parting lines
  • Almost any metal can be cast.
  • Ready for use with little or no machining required.
  • Very close tolerances and excellence surface finish can be obtained.
  • Complex shapes which are complicated by any other technique are possible.
  • Suit for producing complex shapes where other production processes are too expensive and time-consuming.
  • Occasional minute flaws.
  • The size of the casting is often limited.
  • Time consuming as shell moulds cannot be reused.
  • Expensive as many labor engaged in the preparation of the wax patterns & shell moulds.


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