Impactof Rotor Design on Its Wear and Work Efficiency ofthe Aluminum Refining Process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F22%3A00002312" target="_blank" >RIV/75081431:_____/22:00002312 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23210/22:43972184

Výsledek na webu

<a href="https://www.mdpi.com/2075-4701/12/11/1803" target="_blank" >https://www.mdpi.com/2075-4701/12/11/1803</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Impactof Rotor Design on Its Wear and Work Efficiency ofthe Aluminum Refining Process

Popis výsledku v původním jazyce

Both the wear and the geometry of the rotor determine the efficiency of the processof aluminum refining. The paper presents wear tests of two different rotors: I (pump type) and II (pro-peller type). The operation of both rotors in industrial conditions was compared and their service life was examined.It was found that rotor I is more durable than the tested rotor II, and at the same time it provides a good level of hydrogen removal throughout the operation period, i.e.,1112 refin-ing cycles. Rotor wear after refining was calculated by 3D scanning. The study also investigated the impact of rotor geometry on the efficiency of the refining process. The degassing efficiency was determined during refining in a foundry using the Dichte Index (DI). The alloy density and the volume of hydrogen removed were also tested for five stages of rotor wear: 0%, 25%, 50%, 75% and 100%. Both new rotors performed worse in removing hydrogen from the liquid alloy than the worn rotors due totheir humidity which cannot be eliminated in the initial stage of their operation. A Dross Test was also performed to determine non-metallic impuritiesand comparesize and number of cavities for rotor I and II.The best results of removing non-metallic inclusions by flotation were obtained for rotorIat the end of its operation.

Název v anglickém jazyce

Impactof Rotor Design on Its Wear and Work Efficiency ofthe Aluminum Refining Process

Popis výsledku anglicky

Both the wear and the geometry of the rotor determine the efficiency of the processof aluminum refining. The paper presents wear tests of two different rotors: I (pump type) and II (pro-peller type). The operation of both rotors in industrial conditions was compared and their service life was examined.It was found that rotor I is more durable than the tested rotor II, and at the same time it provides a good level of hydrogen removal throughout the operation period, i.e.,1112 refin-ing cycles. Rotor wear after refining was calculated by 3D scanning. The study also investigated the impact of rotor geometry on the efficiency of the refining process. The degassing efficiency was determined during refining in a foundry using the Dichte Index (DI). The alloy density and the volume of hydrogen removed were also tested for five stages of rotor wear: 0%, 25%, 50%, 75% and 100%. Both new rotors performed worse in removing hydrogen from the liquid alloy than the worn rotors due totheir humidity which cannot be eliminated in the initial stage of their operation. A Dross Test was also performed to determine non-metallic impuritiesand comparesize and number of cavities for rotor I and II.The best results of removing non-metallic inclusions by flotation were obtained for rotorIat the end of its operation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/TH04010449" target="_blank" >TH04010449: Výzkum a vývoj rafinačních technologií pro zvýšení kvality hliníkových slitin určených pro vysoce náročné odlitky</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Metals

ISSN

2075-4701

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

2-14

Kód UT WoS článku

000881167400001

EID výsledku v databázi Scopus

2-s2.0-85141670434