Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Prezentace na téma: "Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/"— Transkript prezentace:

1 Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002
Anglicky v odborných předmětech "Support of teaching technical subjects in English“ Tutorial: Engineering technology Topic: Welding with wrapped electrode Prepared by: Ing. Josef Martinák st. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

2 Welding with wrapped electrode

3 Equipment for arc welding

4 Wrapped electrode It consists of electrode core (wire rod) and a cover

5 Welding methods – used abbreviations
Term of welding process Marking ČSN EN Marking DIN Marking ASME Hand arc welding 111 MMA SMAW Flame welding 311 G GW Submerge arc welding in active gas 135 MAG GMAW Submerge arc welding in inert gas 131 MIG Welding with non-fusible electrode in inert gas 141 WIG GTAW

6 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

7 Examples of weld’s usage

8 Electrode marking

9 Build Up weld

10 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

11 Questions and rehearsal
Describe wrapped electrode Name welding methods

12 Used literature DILLINGER, Josef. A KOL. Moderní strojírenství pro školu i praxi. 1. Praha: Europa- Sobotáles, ISBN