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Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Engineering t echnology Topic : Welding with wrapped electrode Prepared by: Ing. Josef Martinák st. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002
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Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“ Tutorial: Engineeringtechnology Topic: Weldingwithwrappedelectrode Prepared by: Ing. Josef Martinák st. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.
Wrapped electrode • It consists of electrode core (wire rod) and a cover
Source of welding current • Welding transformer creates alternative current (AC) and is used for small welding works and house workshops • Welding rectifier creates direct current (DC) and is used for special electrodes • Welding generator creates direct current (DC) and is used mainly on civil works or as propulsion unit of internal combustion engines for power plants • Universal power source creates AC or DC current and are used as universal welding machines
Rules for welding with wrapped electrode • Using of protective gloves and clothing • Using of protective shield • Work place to be closed • Slag removal after weld is cold
Questions and rehearsal • Describe wrapped electrode • Name welding methods
Used literature • DILLINGER, Josef. A KOL. Moderní strojírenství pro školu i praxi. 1. Praha: Europa-Sobotáles, 2007. ISBN 978-80-86706-19-1.