Abstract
We describe two methods of theoretical study of sealing of a joint between surfaces with complex geometric shapes. The first method is based on a model of a medium flow through a system of microslits; the second method is based on the model of an intersurface cavity having the form of a porous layer—the model uses the flow equations of filtration theory. A model of the sealing of flat immobile flanges by hot-melt adhesives is proposed. The advantages of this method are considered, and it is shown that application of hot-melt adhesives onto the flat surface of one of the flanges eliminates all possible leakage channels. In addition, the formation of a gasket directly on the surface of a butt joint also makes it possible to markedly simplify the sealing technology. Methods of increasing the durability of joints with polymeric sealants are proposed.
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L. A. Kondakov, A. I. Golubev, et al., Seals and Sealing Equipment: A Handbook, Ed. by A. I. Golubev and L. A. Kondakov (Mashinostroenie, Moscow, 1994) [in Russian].
A. V. Ignatov, Tekhnol. Met., No. 9, 19 (1999).
A. V. Ignatov and T. V. Kilimnik, Mashinostroitel, No. 4, 48 (1999).
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Original Russian Text © A.V. Ignatov, Yu.I. Boitsov, T.V. Kilimnik, 2007, published in Klei. Germetiki. Tekhnologii, 2006, No. 10, pp. 28–31.
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Ignatov, A.V., Boitsov, Y.I. & Kilimnik, T.V. Mechanism of the sealing of immobile joints with thermoplastic gaskets. Polym. Sci. Ser. C 49, 112–114 (2007). https://doi.org/10.1134/S1811238207020026
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DOI: https://doi.org/10.1134/S1811238207020026