Accelerated Forming on the Sol-Silicate Binder in Precision Casting

L.G. Znamenskii; O.V. Ivochkina; A.S. Varlamov

doi:10.4028/www.scientific.net/SSP.284.1273

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Accelerated Forming on the Sol-Silicate Binder in Precision Casting

Abstract:

As a result of the research, the technology of accelerated forming on the sol-silicate binder in precision casting has been developed. It is based on granular materials cladding by the gel-processing catalysts of the sol-silicate binder and on the use of the clad granular materials as the stucco of ceramic coating layers. That allows to achieve a reduction of ceramic molds product cycle of more than 2...2.5 times and strength improvement of 1.4...1.5 times at the temperature of baking. The developed technology allows to improve the quality of ceramic molds and significantly shorten the forming cycle. Production tests of the gel-processing clad stucco in the investment casting showed a significant reduction of the reject precision castings, acceleration of ceramic molds production and a reduction of the working hours on removing "wedged" ceramic from less-accessible cast section cavities of the pump parts from complex alloyed steels.

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Periodical:

Solid State Phenomena (Volume 284)

Pages:

1273-1277

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.284.1273

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Online since:

October 2018

Authors:

L.G. Znamenskii*, O.V. Ivochkina, A.S. Varlamov

Keywords:

Binder, Clad Granular Material, Investment Casting, Siliceous

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References

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