Are you interested in welding aluminum? The supplier Evek GmbH offers to buy non-ferrous metal at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Preparing

Before welding, the surfaces of the parts to be joined are cleaned of traces of grease, grease and other contaminants. Next comes the preparation of the edges, especially the future welded joints: thin-sheet aluminum parts cannot be welded any other way.

Welding with argon

Welding with argon is considered the most effective way to form an inseparable connection of aluminum parts. Difficulties of welding manifested by the fact that in the open air, aluminum immediately reacts with oxygen, resulting in a thin film of _{Al2 O3} dioxide forms on the surface. Characteristically, the melting temperature of this oxide film is over 2000 °C, while the aluminum itself melts at a much lower temperature of 650 ... 660 ° C. Thus, when using DC electric welding _{Al2 O3} dioxide can enter the metal of the weld, thereby violating its structure and properties.

Technological difficulties

There are technological difficulties. In particular, it is impossible to visually determine the temperature of aluminum heating, as the metal does not change its color. Low volumetric shrinkage of aluminum should also be considered, which requires an increase in the consumption of welding wire. Otherwise there will be residual stresses in the welded area. Supplier Evek GmbH offers to buy aluminum of domestic and foreign production at an affordable price in a wide range. Provide product delivery anywhere in the continent. The price is optimal.

Sequence of operations

• Electrode material selection (non-consumable tungsten electrodes with diameter of 1.5...5.0 mm are used);
• Setting the welding machine voltampere characteristic: welding should be carried out with a short arc, the length should not exceed 3...4 mm;
• filler wire is fed perpendicular to the axis of the parts to be welded, while the welding electrode is held at an angle of 75 ...⁸⁰⁰;
• The filler wire is always in front of the electrode;
• It is unacceptable to move the filler wire and the electrode across the weld;
• Under the future of the weld is placed a sheet of stainless steel, which increases the heat dissipation from the work area.

Buy. Supplier, price.

Are you interested in aluminium welding? The supplier Evek GmbH offers to buy aluminium at the producer price. We provide delivery of products anywhere in the continent. The price is optimal. We invite you to partner cooperation.