Quality Improvement of Casting Molds Via Wettability Improvement of Wax Models with a Water-Based Ceramic Suspension

Lost-wax casting is one of the promising ways to obtain high quality geometrically complex castings. The main factors affecting the properties of the casting is the quality of the front layer of the ceramic mold. Uniform application of a ceramic slurry on the wax model can be achieved if the wax sur...

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Bibliographic Details
Published in:Glass and ceramics 2022-07, Vol.79 (3-4), p.103-106
Main Authors: Novokreshchennykh, E. N., Gulyaev, A. S., Uglev, N. P.
Format: Article
Language:English
Subjects:
Analysis
Castings
Ceramic mold casting
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Dispersion
Glass
Investment casting
Materials Science
Natural Materials
Quality control
Slurries
Surface active agents
Wettability
Wetting
Wetting agents
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Summary:Lost-wax casting is one of the promising ways to obtain high quality geometrically complex castings. The main factors affecting the properties of the casting is the quality of the front layer of the ceramic mold. Uniform application of a ceramic slurry on the wax model can be achieved if the wax surface is well-wetted by the dispersion medium of the slurry. Since the surface of the wax model is hydrophobic, and the dispersion medium of the ceramic suspension is water, an increase in wettability can be obtained not only by introducing surfactant-wetting agents into the composition of the suspension, but also by activating the surface of the model by chemical or physical methods. The results of an investigation of the influence of different various variants of chemical action on the wettability of the surface of a wax model are presented.
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-022-00464-7