Difficulties in the development of AAAC cables

After entering the Chinese AAAC conductor, aluminum conductor aluminum cable grades because manufacturers use vary (AA8000 series has six grades), manufacturer of professional connector terminals can not be obtained due to their own respective grade AAAC conductor are phase Match, in line with AAAC conductor electrical and mechanical properties, and can produce a variety of connection terminals conductor aluminum rods, plus terminal specifications, conductor aluminum alloy grades and more limited demand for the specifications of the terminal, each cable manufacturers.

The cable conductor is pressed due to varying degrees, the outer diameter of the cable conductor is different, and the terminal is generally poor, resulting in the production of terminal mold, high manufacturing costs, and the cost of connecting terminals can not adapt to the market. In short professional connector terminal manufacturers can not produce aluminum copper dedicated connection terminals with the manufacturers, aluminum alloy grades the performance of each match for AAAC conductor manufacturers.

Even professional connector terminal manufacturers are unable to aluminum cable and aluminum cable manufacturers consistent performance aluminum copper dedicated connection terminals, generally of AAAC conductor manufacturer would like to own their own production and consistent performance AAAC conductor copper connection terminal even impossible. Reason: Unable to get consistent and moderate-intensity, high density, good conductivity, various technical indicators meet the requirements and specifications of the connection terminals to meet the production of the desired diameter aluminum rods with their own cable performance. 

Because only with energy smelting, casting a large section of the slab (at least 3700mm2 above) and to a large compression ratio is continuously rough rolling, multi-channel successive coining rolling production line casting and rolling AAAC conductor, will it be possible to get production terminals to require qualified aluminum rods. It is understood that only the United States UMI Electric Asia China factory has a capacity of 3807mm2 casting AAAC conductor casting and rolling production line, other manufacturers maximum only 2400mm2 (including Italy, the introduction), process equipment US UMI this production line is the other industry companies not available. 

We can say that the current domestic and even in Asia, only US companies have obtained UMI Rod moderate intensity, high density, good conductivity, excellent technical indicators and material properties and performance of AAAC conductor to connect with consistent and in line with the manufacture of various Copper connecting terminal specification aluminum alloy aluminum rods need. If you take only way to get casting rods, but without a large compression ratio is continuously rough rolling, multi-channel successive coining rolled rods, due to crystal rods, density, strength, electrical conductivity, the technical indicators We can not meet the requirements, such as rods, simply can not be used to make qualified aluminum copper connection terminals.

Unable to obtain high-quality manufacturing and the cable connection terminals matching aluminum rods is only one of the difficulties, there are many other difficulties, such as manufacturing connecting terminals also need to have to complete the mold design, manufacturing, aluminum, and copper terminal part of the Friction welding, stamping terminal shape and terminal semi-tough refining, finishing, quality inspection, and many other aspects of the production machine shop. To build a complete machine shop to produce the connection terminals, this investment is a cable of any domestic manufacturer can not be.