Justification of requirements to the process of organic glazing structural elements moulding using the pressure sintering

Most complex-profile aviation glazing products are made from the sheet thermoplastics by pressure sintering on the matrix moulding surface. The paper determines permissible defects on the matrix moulding surface. Such defects are acceptable not to distort optics of the aviation glazing products made of monolithic polycarbonate. The paper provides the optical distortions dependences on the aviation glazing thickness and the defects size on the matrix surface.
EDN: HAYKUL, https://elibrary/haykul

References

[1] Sentyurin E.G., Bogatov V.A. Aviation organic glasses. Problems and Prospects. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2004, no. 3, pp. 3–6. (In Russ.).

[2] Mekalina I.V., Sentyurin E.G., Bogatov V.A. New structural organic glasses. Voprosy oboronnoy tekhniki. Ser. 16. Tekhnicheskie sredstva protivodeystviya terrorizmu, 2009, no. 3–4, pp. 33–39. (In Russ.).

[3] Mekalina I.V., Orlova I.V., Krichevskiy D.D. et al. Features of thermal relaxation of oriented organic glasses with a partially crosslinked and linear srtructure. Plasticheskie massy, 2021, no. 3–4, pp. 10–12, doi: https://doi.org/10.35164/0554-2901-2021-3-4-10-12 (in Russ.).

[4] Gorelov Yu.P., Mekalina I.V., Trigub E.S. et al. Chemical modification of transparent acrylate polymers to improve operational properties of aircraft glazing parts. Rossiyskiy khimicheskiy zhurnal, 2010, vol. 65, no. 1, pp. 79–84. (In Russ.).

[5] Kablov E.N. Innovative developments of FSUE «VIAM» SSC of RU on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030». Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2015, no. 1, pp. 3–33. (In Russ.).

[6] Sentyurin E.G., Mekalina I.V., Ayzatulina M.K. et al. Acrylate high-temperature resistant organic glasses. Experience of application. Prospects. Khimiya i khimicheskaya tekhnologiya [CHEMCHEMTECH], 2015, vol. 58, no. 8, pp. 22–24. (In Russ.).

[7] Sentyurin E.G., Mekalina I.V., Perova A.P. How the transparent aircraft armor was created (to the 70th anniversary of the Great victory). Trudy VIAM [Proceedings of VIAM], 2015, no. 5, pp. 68–74, doi: https://dx.doi.org/10.18577/2307-6046-2015-0-5-12-12 (in Russ.).

[8] Sentyurin E.G., Mekalina I.V., Ayzatulina M.K. et al. The history of aircraft materials of glass and polymer materials with special properties (to the 75th anniversary laboratory of polymer materials with special properties). Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2017, no. 3, pp. 81–86. (In Russ.).

[9] Sentyurin E.G., Mekalina I.V., Ayzatulina M.K. et al. Aviation oriented organic glasses AO-120 AND AO-120A Plasticheskie massy, 2019, no. 5–6, pp. 60–62, doi: https://doi.org/10.35164/0554-2901-2019-5-6-60-62 (in Russ.).

[10] Mekalina I.V., Ayzatulina M.K., Sentyurin E.G. et al. Features of influence of atmospheric factors on aviation organic glass. Trudy VIAM [Proceedings of VIAM], 2018, no. 11, pp. 28–34, doi: https://doi.org/10.18577/2307-6046-2018-0-11-28-34 (in Russ.).

[11] Petrov A.A., Mekalina I.V., Sentyurin E.G. et al. Features of manufacture of glazing parts from partially cross-linked organic glasses. Aviatsionnye materialy i tekhnologii [Aviation Materials and Technologies], 2013, no. 2, pp. 32–34. (In Russ.).

[12] Pestov A.V., Vorvul M.M., Samsonov V.I. et al. Ustroystvo dlya formovaniya udaroprochnykh prozrachnykh nedeformiruyushchikhsya polimernykh materialov [Device to mould shockproof transparent non-deforming polymer materials]. Patent RU 2534809. Appl. 28.05.2013, publ. 10.12.2014. (In Russ.).

[13] Pestov A.V., Romakin A.N., Samsonov V.I. et al. Ustroystvo dlya formovaniya udaroprochnykh prozrachnykh polimernykh materialov [Device to mold shockproof transparent polymer materials]. Patent RU 2598092. Appl. 08.06.2015, publ. 20.09.2016. (In Russ.).

[14] Vinogradov V.M., Rubinchik B.E., Pesoshnikov A.E. Sposob pnevmovakuumnogo formovaniya izdeliy iz organicheskogo stekla [A procedure for pneumovacuum moulding of plexiglass products]. Patent USSR 1650463. Appl. 29.03.1988, publ. 23.05.1991. (In Russ.).

[15] Vakhnicheva M.G., Karpets A.K. Osteklenie letatelnykh apparatov. Materialy. Tekhnologiya [Glazing of aircraft. Materials. Technology]. Novosibirsk, NGTU Publ., 1998. 64 p. (In Russ.).

[16] Silkin A.N., Khmelnitskiy A.K., Petrachkov D.N. et al. Sposob formovaniya izdeliy iz polimernykh materialov [Method of forming articles from polymer materials]. Patent RU 2719838. Appl. 24.12.2018, publ. 23.04.2020. (In Russ.).

[17] Chechin D.E., Samsonov V.I., Shatalin V.A. et al. Sposob formovaniya slozhnoprofilnykh opticheskikh izdeliy [Method of forming optical complex products]. Patent RU 2714057. Appl. 10.09.2019, publ. 11.02.2020. (In Russ.).

[18] Akolzin S.V., Frolkov A.I. Performance restoration of the heat-resistant aircraft glazing during repair and operation. Aviatsionnaya promyshlennost [Aviation Industry], 2014, no. 1, pp. 41–44. (In Russ.).

[19] Sentyurin E.G., Mekalina I.V., Ayzatulina M.K. et al. Polishing and grinding – effective methods to improve the «silver resistance» and optical characteristics of plexiglas in the manufacture and extension of aviation glazing in operation (review). Trudy VIAM [Proceedings of VIAM], 2018, no. 10, pp. 45–52. https://dx.doi.org/10.18577/2307-6046-2018-0-10-45-52 (in Russ.).

[20] Sentyurin E.G., Mekalina I.V., Frolkov Yu.A. et al. Weather-resistant translucent polycarbonate sheet. New material for aircraft cockpit windows. Vse materialy. Entsiklopedicheskiy spravochnik [All materials. Encyclopaedic reference manual], 2017, no. 4, pp. 28–33. (In Russ.).

[21] Landsberg G.S. Optika [Optics]. Moscow, Nauka Publ., 1976, pp. 290–293. (In Russ.).

[22] Petrova G.N., Starostina I.V., Rumyantseva T.V. et al. Efficiency of improvement of quality of products from polycarbonate heat treatment. Trudy VIAM [Proceedings of VIAM], 2017, no. 9, pp. 45–55, doi: https://dx.doi.org/10.18577/2307-6046-2017-0-9-6-6 (In Russ.).