Page 159 - Technical Guidbook - Zika industrial Welding Supplies

Z-2805 ALLOYED & UNALLOYED ALUMINIUM CASTING Z- 2812
ALUMINIUM

Description: Description:
Aluminum electrode with 5%Si for welding and repairing aluminum or aluminum Aluminum electrode with 12% Si for welding and repairing aluminum or aluminum
alloy pieces (AlSi, AlCuSiMn, AlSiMg, AlZnMg ect.).For joining aluminum and alloy pieces (AlSi, AlCuSiMn, AlSiMg). Especially designed for welding cast and
aluminum alloys, as well as for aluminum castings. extruded aluminum alloys with Si levels higher than 7%. Dissimilar joints between
aluminum and aluminum alloys.
Uses:
• Aluminum plates Uses:
• Containers, tanks. • Aluminum castings.
• Frames • Pump housings.
• Aluminum pipes. • Aluminum impellers.
• Engine blocks.
Technique and Recommendations:
Before welding all oil, grease, and dirt should be removed. Technique and Recommendations:
Preheat massive pieces ( more than 6mm of thickness) to 150-250°C. Before welding, all oil, grease, and dirt should be removed.
The best results are achieved when welding with a short arc and the electrode Preheat massive pieces ( more than 6mm of thickness) to 150-250°C.
angled 90° to the piece to be welded. The best results are achieved when welding with a short arc and the electrode
Use fast travel speed, remove slag after each pass. angled 90° to the piece to be welded.
In post-welding cleaning, the resistant oxide layer should be removed with a non- Use fast travel speed, remove slag after each pass.
contaminated stainless steel brush. Afterwards the welded area should be rinsed In post-welding cleaning, the resistant oxide layer should be removed with a non-
with clean, hot water. contaminated stainless steel brush. Afterwards the welded area should be rinsed
• Aluminum electrodes are very sensitive to humidity pick up, therefore keep the with clean, hot water.
opene tins in a dry place. • Aluminum electrodes are very sensitive to humidity pick up, therefore keep the
• Can also be used with an oxygen torch opene tins in a dry place.
• The electrode can be welded on small inverters with high O.C.V only. • Can also be used with an oxygen torch
• The electrode can be welded on small inverters with high O.C.V only.
Welding position: Base Materials: Welding position: Base Materials:
DIN Material no.
DIN Material no.
G-AISi6Cu4 3.2151
G-AISi9Mg 3.2373
AIMgSi1 3.2315
ASME: 1G 2F 2G 3G G-AISi10Mg 3.2381
ISO 6947 PA PB PC PF G-AISi5Mg 3.2341 ASME: 1G 2F 2G 3G G-AISi10MgCu 3.2383
G-AISi7Mg 3.2371 ISO 6947 PA PB PC PF
Mechanical Properties: Re-drying AIMgSi0,5 3.2306 Mechanical Properties: Re-drying G-AISi12 3.2581
Yield stress: 60 N/mm² 3h/100ºC G-AISi12Cu 3.2583
Tensile strength: 140 N/mm² AIMgSi0,7 3.2310 Yield stress: 80 N/mm² 3h/100ºC
Elongation: 15% AIMg1SiCu 3.3211 Tensile strength: 180 N/mm²
Elongation: 5%
Current Diameter Types of Current Diameter Types of
)Amps( in mm Current and Polarity )Amps( in mm Current and Polarity
60-90 3/32 2.5 60-90 3/32 2.5
80-110 1/8 3.25 DC )+( 80-110 1/8 3.25 DC )+(
110-150 5/32 4.0 110-150 5/32 4.0
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