Open AccessDETERMINING OF MAGNETIC ABRASIVE POLISHING OF OPTICAL POLYMERS FOR SENSITIVE ELEMENTS OF RADIATION INDICATORS
Author(s) -
Oksana Titarenko,
N.V. Zubkova,
Saša Novak
Publication year - 2020
Publication title -
zbìrnik naukovih pracʹ nacìonalʹnoï akademìï nacìonalʹnoï gvardìï ukraïni
Language(s) - English
Resource type - Journals
ISSN - 2409-7470
DOI - 10.33405/2409-7470/2020/2/36/223550
Subject(s) - polishing , abrasive , materials science , vibration , polymer , composite material , durability , penetration depth , magnetic field , amplitude , optics , acoustics , physics , quantum mechanics
Extending the durability of functioning of the sensitive elements of radiation indicators and increasing their reliability and safety are the main requirements for producers of modern radiation reconnaissance and monitoring devices. The proposed solutions for construction improving of products provide for the usage of optical fibers and the corresponding formation of loop-shaped channels in the finished sensitive polymer element. Potential possibilities of using magnetic abrasive polishing for finishing channel surfaces are considered. For the chosen construction of the polishing head, the material and form of the powder particles composition and the process parameters are proposed. The effect of the frequency and amplitude of vibration of abrasive particles on the depth of their penetration into the surface layer of the polymer is investigated. It has been determined that the widest possibilities of using powders of the composition Fe - C - Si - Ti with a diameter of d = 50 – 400 μm have a mode when the pressure of the air flow by feeding particles is maintained at a level of 1 atm, the magnetic induction of the field in the working gap is 0.8 T, the vibration amplitude of the particles is a = 0.4 mm, and the vibration frequency varies in the range f = 25 – 30 Hz.