Elektra Beckum MIG/MAG 301 E Manual De Uso página 31

Idiomas disponibles

Idiomas disponibles

Rule of thumb to calculate the required shielding gas flow rate:
Amount of gas in ltr/min = 10 x the electrode wire diameter in mm
Example: Wire diameter 1.0 mm requires a gas flow rate of 10 ltr/min.
Diagram showing the exact gas flow rate required, accounting for different welding current settings.
4
Setting
The E-series welding machines are equipped with an intelligent electronic control. After selecting the electrode wire
used (8) and the desired welding current (1), a single-chip microprocessor automatically sets the optimal wire feed
speed and welding voltage. The root or weld penetration can be corrected by setting the welding voltage pot (2) as
required.
More penetration - higher welding voltage
Less penetration - lower welding voltage
The back-burn timer (10) should be set so that the bead at the tip of the electrode wire protrudes approximately 5 mm
from the contact tip.
4.1
Welding Voltage for Aluminium
When welding aluminium replace the standard torch components with the following:
- PA-liner c/w copper spiral liner
- cylindrical gas shroud
- contact tip "A"
- support tube
The feed roller has to match the wire diameter, otherwise the wire will kink. The electrode wire must match the material
specification (pure aluminium or alloy). A pure inert shielding gas (99.996% Argon) is required.
1. Disconnect torch lead assembly from machine and remove electrode wire.
2. Place aluminium wire spool onto spool carrier.
3. Remove liner collet from the torch lead's central coupling and pull steel liner from torch lead assembly.
4. Remove gas shroud and contact tip from torch and replace with cylindrical gas shroud and contact tip "A".
5. Fit PA-liner into central coupling and push through lead assembly until liner protrudes from the head stock.
Insert copper spiral into headstock and push into swan neck until flush, then install contact tip "A". The copper
spiral liner prevents the PA-liner from getting too hot and possibly melting.
6. Secure PA-liner in place by replacing the liner collet at the central coupling.
7. For PA-liners with 4.0 mm outer diameter the steel capillary tube of the wire feed unit has to be replaced by the
support tube. For PA-liners with 4.7 mm outer diameter no support tube is required.
8. Attach torch lead assembly to machine and cut off (do not pinch off with cutting pliers) the PA-liner just in front of
the feed roller.
9. The cutoff liner piece is installed between the wire spool and wire feed unit, to provide for easy guiding here too.
10. To thread the aluminium wire into the lead assembly temporarily remove the contact tip. Thread wire into liner.
Set guide rollers to match wire diameter and pressure roller to only minimal pressure, so it will not flatten the wire
by excessive pressure. Let wire run through lead assembly until it shows 2-3 cms at the headstock.
11. Replace contact tip and gas shroud.
Shielding gas
in l/min
gas shroud diameter
welding current
in mm
in amps
aluminium
steel
loading

Este manual también es adecuado para:

Mig/mag 351 e