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Determination of soluble silica in slurries

The procedure for determining and controlling silica content in colloidal silica slurry follows: Determination of soluble silica in slurries 1. Carefully decant the liquid portion from the sample of the slurry to be tested. 2. Centrifuge the decanted liquid until a relatively clear supernatant is obtained. 3. Determine the specific gravity of the supernatant using … Continue reading Determination of soluble silica in slurries

CHALLENGES IN DESIGNING OF INVESTMENT CASTINGS

The process of investment casting is specified over the other manufacturing methods due to unlimited flexibility of design. This flexibility permits one to take full advantage of the functional choices without making concessions necessary to fabricate the component by other means. Designers recommend the use of investment casting in any of the following situations: (a) … Continue reading CHALLENGES IN DESIGNING OF INVESTMENT CASTINGS