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Wyszukujesz frazę "active surface" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Effect of macro-geometry of the grinding wheel active surface on traverse internal cylindrical grinding process
Autorzy:
Nadolny, K.
Kapłonek, W.
Ungureanu, N.
Powiązania:
https://bibliotekanauki.pl/articles/95239.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
grinding wheel active surface
GWAS
conic chamfer
internal cylindrical grinding
traverse grinding
powierzchnia czynna ściernicy
nakrój stożkowy
szlifowanie cylindryczne
szlifowanie osiowe
Opis:
This article presents results of experimental tests of internal cylindrical traverse grinding in which the total machining allowance is removed in a single pass. Grinding wheels with zone-diversified structure made on basis of abrasive grains from Al2O3 were used in the process. Such tools are characterized by different construction of rough and finish grinding zones. Moreover, conic chamfer is shaped on their active surface that allows for even distribution of machining allowance on the grinding wheel surface. What is described in the hereby work is a device for precise shaping of conic chamfer on the grinding wheel active surface (GWAS). The work also presents results of tests whose aim was to determine the influence of grinding wheel macrogeometry on the process of internal cylindrical traverse grinding of internal cylindrical surfaces made from steel 100Cr6. Changes of selected parameters of the machined surface geometric structure (Ra, Rz, RSm, Rdq and RTp) and values of the grinding power P were analyzed. It was proved that the greater the conic chamfer width, the better the results.
Źródło:
Journal of Mechanical and Energy Engineering; 2017, 1, 1; 15-22
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of Aggregatic Stability and Bactericidal Activities of Nanosilver Colloidal Solutions
Autorzy:
Yushchishina, Anna
Pasichnyk, Maria
Mitryasova, Olena
Koszelnik, Piotr
Gruca-Rokosz, Renata
Kida, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1811619.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
colloidal solution
nanosilver
surface-active substances
SAS
aggregate resistance
bactericidal action
Opis:
The influence of SAS of different chemical nature on aggregate stability and bactericidal action of nano silver colloidal solutions is investigated. Colloidal solutions of silver were obtained by restoring the argentum nitrate agent in a neutral medium. With the help of spectrophotometric method, it has been proved that such solutions are characterized by high aggregate stability compared with the use of other traditional reducing agents. Anionic SAS (sodium dodecylsulfate and sulfanol) and nonionic SAS (OS-20) increase aggregate stability of nano silver solutions, while cationogenic SAS − alcamone promotes rapid coagulation and aggregation of nano silver particles. The study of bactericidal action of the solutions to the E.coli are showed that the nano silve colloidal solution with or without presence of OS-20 and alcamone completely inhibit the growth of colonies of E.coli, that is, it’s have high bactericidal properties.
Źródło:
Rocznik Ochrona Środowiska; 2020, Tom 22, cz. 1; 40-50
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sequential treatment process in a rotary container polishing machine with periodic workpiece location changes in working abrasives areas
Autorzy:
Juniewicz, Mateusz
Plichta, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2201643.pdf
Data publikacji:
2022
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
mass finishing
active holder
stainless steel
surface roughness
obróbka wykończeniowa
uchwyt aktywny
stal nierdzewna
chropowatość powierzchni
Opis:
This paper presents the process of a 3-step machining process involving pre-treatment, smoothing and polishing, placing the workpiece in different energy levels of the working load in a rotary-cascade container smoother, by moving it towards the radial direction of the working chamber of the smoother. Studies show the ability to control the course of pre-treatment, smoothing and finishing intensity, both in terms of process parameters and treatment time. Such a structure of the machining process, it also allows you to influence the structure geometry of the machined surfaces in successive stages of machining, and consequently on the final quality. The proposed organization and structure of the process allows for the creation of a new one surface treatment strategy.
Źródło:
Journal of Mechanical and Energy Engineering; 2022, 6, 2; 1--6
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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