Are you interested in tantalum welding? We offer to buy tantalum from specialized warehouses of the supplier Evek GmbH with delivery to any city. Full compliance with modern quality standards. Supplier Evek GmbH offers to buy rare-earth metals, the price is optimal in this segment of rolled metal products.

Weldability

Welding tantalum must be performed in a protective atmosphere. Not only the weld pool requires protection, but the entire metal must be reliably protected. Four basic techniques are used today: welding. Evek GmbH offers to buy any rare earth metals at the manufacturer's price. The supplier guarantees product delivery to any destination.

Electron beam welding.

It requires the most modern equipment. Large fragments are welded in a vacuum chamber. In this case it is possible to make complex welds in places which are difficult to access, e.g. for inseparable connections of T-joints with different cross-sections.

Welding with shielding gas

Constant purging of gas is ensured. The method is used when the energy intensity of the process is high and the nature of the connection is too complex to ensure welding by conventional methods. The casing for creating a protective shell is usually made of polyethylene sheet and masking tape. Argon flowing through the casing moves or mixes trapped air in the area where the weld is made. Argon should be flowing through until the weld has cooled to room temperature;

Welding in a vacuum chamber

This provides the best conditions for the inert gas flow. The parts to be welded are placed in the welding chamber, after which the welding area is sealed. After the air is evacuated, the chamber is filled with high purity argon at a slight positive pressure. Welding is performed using rubber gloves, which are placed on the sides of the chamber;

Conventional welding in air.

Relatively simple joints are possible. welds must have adequate shielding. Protection of the arc, front and sides, cooling elements behind and below the weld must be provided. Protective atmosphere is provided by a low gas flow from a cylinder.

Shielding

Inert gas shielding shall be provided by properly positioned rear shields that provide gas protection until the metal cools below the critical temperature. Backup shielding on the underside of the weld should also be used. This provides protection for the weld area until the tantalum workpiece is cooled.

TIG

Tantalum can also be welded using the non-consumable electrode method (TIG), but the weld zone must be well protected. However, this method is rarely used, because of the unfavorable working conditions for the welder. Vacuum chambers are mostly used for electron-beam welding, while inert gas chambers are used for TIG welding.

Color change

It is characteristic that tantalum allows a slight color change during welding (up to a dark straw color). To avoid loss of metal, the process is carried out exclusively in a sealed chamber filled with inert gas. The presence of nitrogen is not critical, although it slightly discolors the finished weld.

Buy, bargain price

Are you interested in welding tantalum? We offer to buy tantalum, price - determined by the technological features of production without including additional costs. The website of Evek GmbH displays information on the latest arrivals of products. It is possible to order rolled tantalum of any metal. We invite to partner cooperation.