Ocena przydatności stosowania cząstek suchego lodu CO2 w obróbce powierzchni strugą wodno-lodową

• Autorzy: Chomka G.

Warianty tytułu

EN

An evaluation of the usefulness of using CO2 dry ice particles in surface treatment

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono wyniki termodynamicznych analiz cząstek suchego lodu w czasie kreowania wysokociśnieniowej strugi wodno-lodowej. Zaprezentowano efekty badań eksperymentalnych wpływu wydatku suchego lodu na wydajność usuwania powłok lakierniczych strugą wodno-lodową. Dokonano oceny stanu powierzchni podłoża, które po obróbce nie wykazuje żadnych zmian w stosunku do stanu pierwotnego.

EN

The paper covers theoretical analyses and experimental results aimed at an evaluation of the usefulness of CO2 dry ice particles for the removal of varnish coats. In the first section, there is performed a thermodynamic analysis of CO2 dry ice particles of the temperature lower than the sublimation temperature, during the creation of a water-ice jet. In this case, there was determined the impact of individual treatment parameters (Figs. 2 and 3) that are of significance to the mechanical properties of dry ice particles. Furthermore, a thermodynamic analysis of a high-pressure water-ice jet for ice particles of the temperature being equal to the sublimation temperature is conducted. It was established that during the transport of dry ice particles from a tank to a concentric multi-hole nozzle, a maximum of 4.7% of CO2 could be sublimated. Additionally, in a high-pressure water-ice jet, where 30% of dry ice will be sublimated, the water jet temperature will be reduced by a maximum of 1.03 K, when the initial air temperature is 293 K and the initial water temperature is also 293 K. In the further part of the paper, the influence of the dry ice expenditure on the treatment efficiency (Fig. 6) is discussed. There was found the occurrence of the maximum limiting expenditure of dry ice particles, with the use of which the best cleaning results are obtained. There was also carried out an analysis of the macro- and micro-structure of the substrate surface, from which varnish coats were removed with the aid of a high-pressure water-ice jet.

Słowa kluczowe

PL

suchy lód; usuwanie powłok lakierniczych; wysokociśnieniowa struga wodno-lodowa

EN

dry ice; lacquer coating removing; high-pressure water-ice jet

• Wydawca: Wydawnictwo PAK
• Czasopismo: Pomiary Automatyka Kontrola
• Rocznik: 2013
• Tom: R. 59, nr 7
• Strony: 656--659
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr. wzory

Twórcy

autor

Chomka G.

• Politechnika Koszalińska, Wydział Mechaniczny, ul. Racławicka15-17, 75-620 Koszalin

Bibliografia

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