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Anglicky v odbornch pedmtech"Support of teaching technical subjects in EnglishTutorial: Engineering technology

Topic: Welding with wrapped electrode

Prepared by: Ing. Josef Martink st.

Projekt Anglicky v odbornch pedmtech, CZ.1.07/1.3.09/04.0002je spolufinancovn Evropskm socilnm fondem a sttnm rozpotem esk republiky.

Welding with wrapped electrode

Equipment for arc welding

It consists of electrode core (wire rod) and a coverWrapped electrode

Welding methods used abbreviations Term of welding process MarkingSN ENMarking DINMarking ASMEHand arc welding111MMASMAWFlame welding311GGWSubmerge arc welding in active gas 135MAGGMAWSubmerge arc welding in inert gas 131MIGSMAWWelding with non-fusible electrode in inert gas 141WIGGTAW

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

Source of welding current

6Examples of welds usage

Electrode marking

Build Up weld

Using of protective gloves and clothing

Using of protective shield

Work place to be closed

Slag removal after weld is cold Rules for welding with wrapped electrode

Describe wrapped electrode

Name welding methods Questions and rehearsal

DILLINGER, Josef. A KOL. Modern strojrenstv pro kolu i praxi. 1. Praha: Europa-Sobotles, 2007. ISBN 978-80-86706-19-1.

Used literature