FIELD: metallurgy.
SUBSTANCE: HF electric field acts on the monitored object. The monitored object is located between two electrodes with different potentials along entire area, if held to temperature T ≈ 90% Tmelting, heating rate is registered, compared with reference, based on the heating rate presence and size of metal inclusions are determined, based on number of micro discharges presence and size of the air inclusion are determined.
EFFECT: assurance of the possibility of metal and air inclusions determination in polymer products.
2 dwg
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