Aluminum alloy cables are products that should not be oversold

Since 2006, the competition in the wire and cable industry in China has become increasingly fierce. Many manufacturers have been trying hard to improve the process of their products. Two well-known companies in the United States have brought a brand new cable product to China and have caused it in China's wire and cable market. A huge sensation. This is a new type of cable conductor material technology, that is, aluminum alloy conductor technology and aluminum alloy cable products. It can be said that the speculation of aluminum alloy cable at that time was much higher than the actual exploration, because the domestic users of the copper cable is too psychological, and there are doubts about the aluminum alloy cable. Secondly, the lack of standard specifications for aluminum alloy cables has led to confusion in the process technology of domestic aluminum alloy cable products and it has been difficult to meet the demand for labor.

In the 8 years since the aluminum alloy cable entered China, there was no aluminum alloy cable product in the Chinese market. Therefore, there is no connection application technology and connection terminal product for aluminum alloy cable. Professional aluminum alloy cable manufacturers have in fact realized that the use of copper-aluminum transition terminals originally used for aluminum cables in aluminum alloy cable applications is a wrong and unscientific connection technology solution and domestic installation and maintenance of cables, etc. There are practical problems that cannot be regulated, and it is also clear that the use of copper-aluminum and Other transition terminals as connection technology solutions will leave potential safety hazards. It is known that aluminum alloy cable products need to use aluminum alloys that are consistent with the performance of the connected aluminum alloy cables. Copper connection terminal solution.

For eight years, these professional manufacturers have been trying to evade this problem, but they are also working hard to solve this problem. During the same period, it also discussed with professional manufacturers of connection terminals to seek solutions. In recent years, some cable manufacturers have also carried out their own research and development, and ultimately unable to obtain technical breakthroughs due to comprehensive capabilities, but can only deviate from the subject of the problem to be solved, to develop so-called high conductivity or other properties of micro-alloy copper connection terminals, In the market, it is known as the transition terminal of aluminum alloy, stealing the concept and avoiding the essence of the problem to be solved. That is, the connection terminal must solve the problem that the terminal and the aluminum alloy cable to be connected have the same performance, but not deliberately to improve the conductivity. Performance or any other performance does not contradict the fatal problem of boring heads to move the connection terminals.

In short, professional manufacturers are trying to solve the aluminum alloy copper transition terminal technology research and development, production problems. However, due to the sources of aluminum alloy rods that are required for terminal production and that are consistent with the properties of the aluminum alloy cables produced, problems such as difficulty in manufacturing and excessive manufacturing costs cannot be solved without results. This 8 years. More domestic non-professional aluminum alloy cable manufacturers, because they do not understand the essential difference between the aluminum conductor and aluminum, are mistakenly following the trend, using copper and aluminum transitions and other connection terminals.

After years of practical exploration, aluminum alloy cables are increasingly accepted by the domestic market. In particular, with the introduction of the relevant related process specifications, it is undoubtedly a great impetus for the promotion of aluminum alloy cable products. In fact, in terms of actual performance, aluminum alloy cables have not improved the electrical conductivity of pure aluminum cables, but their physical and mechanical properties such as bending, compressive creep and corrosion resistance have been greatly improved. Compared to copper cables, aluminum alloy cables have unparalleled advantages over copper cables in terms of weight, price, and engineering installation. In other words, aluminum alloy cables are more economical and have a wide range of applications with the same electrical performance and better mechanical performance.

However, aluminum alloy cables have high technical content and large investment in production equipment and require mature material formulas, production processes, and talents. The production of conductor aluminum alloy material requires a proprietary formula, which requires melting and casting by itself in order to ensure the quality of the alloy material. Cable production also requires multiple production processes such as toughening, and requires specialized technology, mature technology, specialized production and management personnel, and special production equipment to be able to produce qualified alloy cable products. It is difficult for manufacturers with high industry barriers, unprofessionals, and lack of strength and mature production conditions to participate.

At present, the manufacture of aluminum alloy cable products is characterized by strong professionalism, high equipment requirements, and four major technical and technological difficulties. All copper cables are started from conductor processing. Because the copper conductor is a single metal material, the material quality is easier to control. However, aluminum alloy cables differ in conductor materials, and production equipment, production technology, and processes are very different from those used to produce traditional copper cables. Need to invest in conductor alloy smelting, conductor alloy material casting and rolling equipment, technology, aluminum alloy cable production equipment, specialized technology, special production process. Aluminum alloy cable production, quality control from the beginning of the alloy material smelting, in equipment support, strict process, technical control, casting, after the formation of qualified conductor aluminum alloy rod. Aluminum alloy rod quality assurance is the premise of aluminum alloy cable quality can be guaranteed. If you cannot produce conductor aluminum alloy rods yourself, the quality of the rods cannot be controlled at all and the quality of the aluminum alloy cables produced cannot be discussed. Compared with the traditional cable production, the equipment, technology and process requirements for the production of alloy cables are higher and more advanced. At present, domestic non-professional aluminum alloy cable manufacturers do not yet have these conditions and capabilities.

It is true that aluminum alloy cable products have unique characteristics. Compared with pure aluminum cables, it is a revolutionary breakthrough and solves the fatal defects of pure aluminum cables. In most common situations, such as residential, commercial buildings, municipal civil engineering and other fields can completely replace the copper cable to use. The earliest aluminum alloy cables originated in the North American market. In the 1960s and 1970s, the southern cable of the United States was the earliest inventor of aluminum alloy cables. In the North American market, aluminum alloy cables were widely promoted as aluminum alloys instead of copper or pure aluminum as conductors. Cable products. However, for some special occasions, such as fire fighting, mines and other demanding important places, the use of aluminum alloy cable products may not be the best choice.

For some people in the wire and cable industry who often say that "the United States has successfully applied aluminum alloy cables for almost 50 years, there have never been any security incidents," and people who talked about it, I believe there should be some doubts. Attitude, aluminum alloy cable should not be pushed onto the altar, excessively touted and molded.