Přístupnostní navigace
E-application
Search Search Close
Publication detail
VOTAVOVÁ, H. POHANKA, M. BULEJKO, P.
Original Title
Cooling homogeneity measurement during hydraulic descaling in spray overlapping area
Type
conference paper
Language
English
Original Abstract
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.
Keywords
steel, scales, hydraulic descaling, cooling, homogeneity
Authors
VOTAVOVÁ, H.; POHANKA, M.; BULEJKO, P.
RIV year
2015
Released
3. 6. 2015
Publisher
Tanger Ltd Ostrava
Location
Ostrava
ISBN
978-80-87294-58-1
Book
METAL 2015 24th International Conference on Metallurgy and Materials
Edition
1
Edition number
NEUVEDENO
Pages from
265
Pages to
270
Pages count
6
BibTex
@inproceedings{BUT114715, author="Helena {Votavová} and Michal {Pohanka} and Pavel {Bulejko}", title="Cooling homogeneity measurement during hydraulic descaling in spray overlapping area", booktitle="METAL 2015 24th International Conference on Metallurgy and Materials", year="2015", series="1", number="1", pages="265--270", publisher="Tanger Ltd Ostrava", address="Ostrava", isbn="978-80-87294-58-1" }