Conclusions
We have studied the process of obtaining vibro-cast periclase refractories based on fine- and coarse-grained molding systems using a low-concentration solution of HCl as the binder.
Using a combined experimental and calculation method based on the use of a cone, we have carried out studies to optimize the production parameters of the vibro-casting process.
The materials obtained in the initial (unfired) state are characterized by fairly high strength (σcomp=12–30 MPa) and can be used as refractory concretes.
The process of sintering the materials was studied and it is shown that their properties are comparable with the normal periclase refractories of a grainy structure. After firing at 1550–1600°C the refractories show virtually no additional shrinkage and their true porosity is 19–23%, ultimate compressive strength 30–60 MPa, and ultimate bend strength 12–26 MPa.
The results were proved industrially. Large details of the smelting unit of induction furnaces were manufactured and successfully tested.
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Translated from Ogneupory, No. 8, pp. 9–15, August, 1986.
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Pivinskii, Y.E., Nikitin, V.N. & Khranovskaya, T.M. Vibro-cast periclase refractories of a grainy structure and some of their properties. Refractories 27, 437–444 (1986). https://doi.org/10.1007/BF01389513
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DOI: https://doi.org/10.1007/BF01389513