Ceram-Spun and Casting Centrifugally

CERAM-SPUN®

AMERICAN CENTRIFUGAL's exclusive CERAM-SPUN® process was developed to provide several outstanding advantages--not obtainable with other centrifugal casting methods.

First is a stepless range of cast outside diameters, provided by varying the volume of ceramic mold material which is centrifugally applied to the inside of the rotating cylindrical metal flask.

Second, the centrifugally cast tube is supported during the casting process by the expanding refractory lining. Radial thermal expansion of the metal flask is limited by water spray on the outside. Because of the heat of the molten metal, the refractory lining increases in volume, which results in a radially inward contraction. Therefore, the lining supports the casting as the metal undergoes contraction as it cools. The danger of producing hot tears and cracks is greatly reduced, and higher spinning speeds are permitted, both contributing greatly to the highest quality in the finished cylindrical product.

Casting Centrifugally

Tubular parts are produced in horizontal axis casting machines using the true centrifugal process. High casting speeds produce uniform, dense walls. The stepless flexibility of the AMERICAN CERAM- SPUN process makes possible the production of tubes, not only with the exact outside diameter required, but also with infinite combinations of inside diameters, thicknesses and lengths. Thus, the AMERICAN CERAM-SPUN process is not restricted by the size of flask equipment--it is not necessary to allow for unnecessary excess metal or incur the cost of special dies or molds. O.D.'s from 4" to 55" (101.6mm to 1,397mm). Wall Thicknesses from 0.5" to 10" (12.7mm to 254mm). Lengths from 4' to 20' (1.219m to 6.096m) ... longer by welding.