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A cast saw is an oscillating saw used to remove orthopedic casts. Instead of a rotating blade, cast saws use a sharp, small-toothed blade rapidly oscillating or vibrating back and forth over a minimal angle to cut material and are therefore not circular saws. [1] This device is often used with a cast spreader. [2]
The cast restricts ankle movement while allowing knee mobility. In some cases, a toe plate is added to a short leg cast to provide additional protection for toe injuries or fractures. The toe plate is an extension of the cast that covers the toes, shielding them from external forces and reducing the risk of further injury during recovery.
The plaster sets, usually in about 15 minutes, and the pattern is removed. The mold is then baked, between 120 °C (248 °F) and 260 °C (500 °F), to remove any excess water. The dried mold is then assembled, preheated, and the metal poured. Finally, after the metal has solidified, the plaster is broken from the cast part.
Casting the Slurry: The slurry is then cast onto a flat surface using a tape casting machine. The machine spreads the slurry into a thin film of the required thickness. [7] Drying: The cast film, known as the green tape, is dried to remove the solvents. This step is crucial to ensure the tape maintains its shape and integrity.
A colour cast is a tint of a particular colour, usually unwanted, that evenly affects a photographic image in whole or in part. [ 1 ] Certain types of light can cause film and digital cameras to render a colour cast.
Slush casting is a variant of permanent molding casting to create a hollow casting or hollow cast. In the process the material is poured into the mold and allowed to cool until a shell of material forms in the mold. The remaining liquid is then poured out to leave a hollow shell.
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A casting defect is an undesired irregularity in a metal casting process. Some defects can be tolerated while others can be repaired, otherwise they must be eliminated. They are broken down into five main categories: gas porosity, shrinkage defects, mould material defects, pouring metal defects, and metallurgical defects.