Copper and aluminum composite row

[China Aluminum Network] Copper-aluminum composite row is an aluminum substrate, the outer layer of copper. According to its manufacturing skills can be divided into: the coating welding method is the domestic and foreign methods of preparing copper clad aluminum wire, some domestic companies use this skill to manufacture copper clad aluminum row, this approach is the choice of flat, vertical roller with core restrictions Concentrically, the copper tape is coated on the aluminum row, and then the longitudinal seam is welded by argon arc welding, followed by stretching and annealing. The rolling and crimping method presses the copper strips cleaned and disposed from the top and bottom wide surfaces onto the aluminum plate, and applies pressure to press the copper strips and the aluminum plates together, and is then orthopedic or further treated and then annealed. The hydrostatic kneading method, die-casting and rolling direct forming method, and the direct forming skill of die-casting and rolling developed by Huatong Company Copper and aluminum are solid-liquid links and constitute an outstanding composite layer through special skill disposal. The composite layer consists of a copper layer that is melted by aluminum, and copper and aluminum that are mutually dispersed over a large area, which truly completes the metallurgical connection. This approach is thicker than solid-phase contact composites and has high contact strength. After the clean aluminum rod is inserted into the cleaned copper tube, a composite billet is formed and placed into a hydrostatic kneading machine. The effect of high hydrostatic pressure and large deformation rate is used to complete the metallurgical connection between copper and aluminum. The aluminum core and the copper tube are used to remove the oxide film on the outer surface of the aluminum core and the inner surface of the copper tube, and the aluminum core is pressed into the copper tube, and the aluminum tube is stretched or rolled so that the copper tube and the aluminum core are in solid contact with each other, and the required outer dimensions are drawn. The two metals that form a long-distance inter-atomic disjunction between them are bright, round, and flawless. It is a new type of conductive material that combines copper's high-quality stable conductive function with aluminum's low-cost power and lower touch resistance. Can replace pure copper row, copper accounted for 20% of the proportion, aluminum accounted for 80% of the proportion, the same standard case is 2.5 times longer than pure copper row, the current capacity is 85% of pure copper row, choose a slightly larger standard Can reach the same current-carrying capacity, and meet the customer's requirements of wire diameter and mechanical and electrical functional requirements. 1. Copper-clad aluminum strengths:

1. Outstanding electrical conductivity: copper-aluminum aluminum has a volumetric ratio of 15% copper to aluminum. Compared with copper bars, the communication capacity is 85% of pure copper.

2. Light weight: The density of the copper clad aluminum row is only 37%-40% of the pure copper row, and the length (volume) of the same component is 2.5-2.7 times that of the pure copper row.

3. Outstanding mechanical function: It has outstanding tensile strength, bendability and elongation.

4. Solid copper-aluminum connection: Two kinds of different metal materials reach the longer-lasting interatomic intercrystalline contact between various ambient temperatures, and the copper layer (tin-plated, zinc-layer) spreads evenly without any physics Disadvantages.

5, outstanding ductility and reliability: through special heat treatment skills, with a certain degree of plasticity, is conducive to punching, cutting, winding products without cracking, no difference. In order to improve the anti-corrosion function, tin plating and galvanizing treatment can be performed on the surface of the copper layer.

6, better selectivity: save copper, greatly reduce the production of supporting costs, green, no pollution.

Note: The copper-aluminum composite row can be processed according to the user's various widths and thicknesses.

Copper-aluminum composite row, can be used specifically to replace the copper row, aluminum row. widely used in. Automation, metallurgy, high and low voltage electrical appliances, construction occupations and metallurgical occupations. This product uses foreign leading bimetal composite materials technology, quality and stability function is a high-tech energy-saving products.