A New Method of Measuring Green and Fired Permeability of Investment Casting Shells
Is your shell room running out of capacity? Instead of investing in more robots and drying conveyors, perhaps it’s time to consider fiber-enhanced slurries. Many investment casters who have used fiber-enhanced slurries have been successful in reducing the number of dip coats and thereby increasing shell room throughput. …
A Practical Approach to Replacing Zircon
The replacement of zircon flour and sand is discussed in practical terms. Results of trials using Cerabeads 60 as alternate sand are given. Replacement of zircon flour is discussed. …
Alternatives for Zircon Stucco and Flour
Casting trials have shown Itochu Ceratech Cerabeads 60 sand to be a successful substitute for zircon sand in many cases, but not 100% of the time. A new product …
Effect of Fused Silica Flour Particle Size Distribution on Slurry and Shell Properties
Slurry and shell properties were measured using various fused silica flour distributions. Slurry rheology was measured with a Brookfield viscometer. Slurry and shell …
Innovative Dewax Method Unlocks Potential for Investment Casters
Totally new methods are infrequent in a mature industry like investment casting. However, just such an advance has occurred for the dewax process. This patent pending …
One-Shift Shell: Speed up the Shell Room for Profit
Cycle time reduction has direct impact on profitability for several reasons. Quick response and delivery also makes it possible to get on the “Other” customer list: …
Report on Fiber Enhanced Slurry Developments
One of the most exciting new developments for the investment casting industry is the use of organic fiber. Dan Duffey and Robert Shaw (son of the inventor of the “Shaw …
Shell Materials and Casting Methods for Casting Titanium
Casting of Titanium alloys can be done with various primary, intermediate, and backup shell materials. There are also different methods of casting these alloys. …
Strength Development in Fiber Enhanced Shells with and Without Polymer as a Function of Dry Time
Fiber enhanced slurries are successful in building shells with fewer dips because thicker individual dip layers are applied. Because of this, drying of these shells could be …
The Choice Between Aluminum Silicates and Fused Silica for Stucco
The use of Aluminum Silicate stucco as a replacement for Fused Silica stucco is investigated. Two different types of backup slurries and three different stuccoes were …