Cooling homogeneity measurement during hydraulic descaling in spray overlapping area

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU114242" target="_blank" >RIV/00216305:26210/15:PU114242 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cooling homogeneity measurement during hydraulic descaling in spray overlapping area

Popis výsledku v původním jazyce

Steel production is connected with high temperatures at which the steel reacts with oxygen in the surrounding atmosphere, creating scales on its surface. One of the most promising technologies for removing these scales when the steel is still very hot is hydraulic descaling. A row of high pressure flat jet water nozzles is usually used, with the feed pressure usually ranging between 10 and 40 MPa. The descaled material usually moves under the spraying nozzles. For most flat products, several nozzles arranged in a row must be used because the spray width of the nozzle is smaller than the width of the sprayed material. The steel surface where the scales are sprayed away by two adjacent nozzles is called the overlapping area. This area is dramatically overcooled during the typical configuration with an offset angle of 15° and an inclination angle of 15°. For this paper, both the typical and a new configuration with an offset angle of 0° were measured. Cooling homogeneity measurements were made to see the improvement in cooling homogeneity with the new configuration and spray impact pressure distribution measurements were made to see the size and shape of pressure distributions in the overlapping area for both configurations. Obtained results are presented and any improvement with the new configuration is discussed.

Název v anglickém jazyce

Cooling homogeneity measurement during hydraulic descaling in spray overlapping area

Popis výsledku anglicky

Steel production is connected with high temperatures at which the steel reacts with oxygen in the surrounding atmosphere, creating scales on its surface. One of the most promising technologies for removing these scales when the steel is still very hot is hydraulic descaling. A row of high pressure flat jet water nozzles is usually used, with the feed pressure usually ranging between 10 and 40 MPa. The descaled material usually moves under the spraying nozzles. For most flat products, several nozzles arranged in a row must be used because the spray width of the nozzle is smaller than the width of the sprayed material. The steel surface where the scales are sprayed away by two adjacent nozzles is called the overlapping area. This area is dramatically overcooled during the typical configuration with an offset angle of 15° and an inclination angle of 15°. For this paper, both the typical and a new configuration with an offset angle of 0° were measured. Cooling homogeneity measurements were made to see the improvement in cooling homogeneity with the new configuration and spray impact pressure distribution measurements were made to see the size and shape of pressure distributions in the overlapping area for both configurations. Obtained results are presented and any improvement with the new configuration is discussed.

Druh

D - Stať ve sborníku

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2015 24th International Conference on Metallurgy and Materials

ISBN

978-80-87294-58-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

265-270

Název nakladatele

Tanger Ltd Ostrava

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

3. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374706100039