Electrode for aluminium AlSi up to 7%Si, CHEM-WELD 805

Product detailed description

CHEM-WELD 805

Electrode for welding aluminium alloys AlSi up to 7% Si

(alloy content up to 2%)

Applications: aluminium profiles, windows, doors, curtain walls, interior fittings, lighting, ladders, railings, fences, electric motor housings, truck and trailer floors, irrigation, heating and cooling pipes. Supporting structures in the construction industry, production of transport vehicles (transport tanks, tugboats), in engineering, production of office furniture, in the food industry, construction of yachts.

For materials: AlMgSi0,5, 3.3206, 6060, ALMgSi0,7, 3.3210, 6005A, AlMgSi1, 3.2315, 6082, AlMg1SiCu, 3.3211, 6061, AlSi7Mg0,3, 3.2371, 4210, G-AlSi5Mg, 3.2341, 3XXX, G-AlSi6Cu4, 3.2151, 4500, AlMgSi, 3.2305, 6060, AlZn4.5Mg1, 3.4335, 7072.

How to weld aluminium with electrode?

The specific coating of CHEM-WELD aluminium electrodes reacts with aluminium oxides and forms a protective gas shield over the welding bath, which reduces oxygen absorption and thus significantly prevents the formation of inclusions.When welding aluminium with an electrode, it is necessary to remove the aluminium oxide by cleaning the welded parts (removing dirt, degreasing and grinding). Also clean the surface of the material at the clamping point of the grounding clamp. The actual welding must follow immediately after cleaning, otherwise the material will be degraded again. It is necessary to use only dried electrodes due to possible hydrogen problems and subsequent porosity of the weld.5-8 mm can be welded without preheating, larger thicknesses with preheating 80-250°C.Connect the welding cable with the electrode to the + pole. Set the welding parameters. Use the HOT START function to ignite the electrode, if the welding machine allows it, set the welding parameters to approximately 130% of the standard welding current. Guide the electrode perpendicular to the material to be welded. Weld with a very short arc at a higher speed. If the weld shape is high, it is necessary to use preheat, or increase the welding current, or increase the welding speed. The slag formed can be easily removed, thus eliminating the formation of corrosion.