Interesting about copper brazing
Interesting about copper brazing? Supplier Avlob offers to buy copper solder at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.
Application
Connection of small steel parts by welding is impossible. Soldering with copper solders is a worthy alternative to welding steel alloys, cast iron, nickel and some other metals. For soldering, they prefer to use copper grades M0 M0b, M1p, M2p (GOST 859−2001). The second area of application of copper solders is refrigeration, the connection of copper and aluminum cold lines.
Technical specifications
- Low elasticity of copper vapors, which is especially important for soldering electrovacuum technology;
- Absence of pores in the solder joint, which is explained by a small interval of crystallization of copper;
- High plasticity of copper, which does not allow the solder joint to break down with a significant difference in the coefficients of thermal expansion of metals, connected by soldering.
Copper solders are high temperature. Only at 1100… 1120 ° C there is a satisfactory spreading of copper along the surface of the soldered joint and filling all the available gaps. Spreadability increases with the duration of the soldering process, which is usually several minutes. Supplier Avlob offers to buy any solder at a bargain price. The price is the best in this segment of rental.
Technical requirements
Copper solders should not contain oxygen, and the soldering process must be carried out in a reducing or protective gas atmosphere or, in cases of special liability, in a vacuum. Such requirements are explained by the following. In the presence of oxygen, it diffuses into copper, the result of which is the formation of the oxide Cu 2 O. Since the size of the crystal lattice of the last compound is much larger, intercrystalline cracks appear, and the zone of the soldered joint is subjected to intense saturation with oxygen. At the subsequent annealing of the brazed joint, brittle copper hydrides are formed, further reducing the durability. In moist air, this contributes to increased porosity of the seam, which is unacceptable for electrovacuum devices.
Delivery, price
Interesting about copper brazing? Buy copper solders at an affordable price from the supplier Avgob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy copper solder at the optimal price in bulk or at retail. We invite you to partner cooperation