Since the beginning of this year, the price of copper has increased rapidly. On May 12, the domestic market price of domestic copper prices was 82,600 yuan per ton, which was 460% higher than in 2002. As the copper price rises madly, how much has the wire and cable manufacturing company been doing? How much is the situation? Nearly visited some cable companies, unanimously reflect the copper price is too high, can not afford, a lot of cable companies so discontinued? But the market is still there, millions of cable orders also occupy a certain proportion, but users are reluctant to accept Due to the fact that the price of copper has been raised due to the increase in copper prices?
It is understood that cable is a labor-intensive, capital-intensive, and relatively low-tech product. Therefore, the price competition is fierce. Under normal circumstances, its gross profit is only about 2.5%. A slight fluctuation in aluminum prices appears. Losses, coupled with rising energy costs, transportation costs, and human resource costs, have also contributed to the further increase in corporate costs. However, despite the dramatic increase in the cost of wire and cable products, it is difficult to increase sales prices.
In response to the current urgent situation, China Xingle Group Co., Ltd. partially resolves the cost pressure by means of independent technological innovation to ease the pressure brought about by the increase in raw material prices. The newly developed copper-clad aluminum and copper-clad aluminum-copper composite conductor wire and cable Compared with the equivalent product, the product cost is reduced by 20% - 40% due to its good corrosion resistance, good weldability, low specific gravity, easy processing, easy installation, transportation, good transmission performance and many other advantages. Become a new economic growth point?
But there is still a long way to go to achieve good results. This is because some users cannot accept the change of aluminum-based copper.
One view is that the resistivity of aluminum conductors is higher than that of copper conductors, and aluminum metal materials are used as the conductors of power cables. The energy loss in the transmission process should be larger than that of copper materials. According to national recommendations, the At °C, the DC resistance value of a certain copper conductor cross-section is equivalent to the DC resistance value of aluminum conductors corresponding to two large specifications. That is to say, considering the energy loss during transmission, a certain copper conductor power cable can completely be correspondingly large. Replaced by two sizes of aluminum conductor cable, their ampacity is quite the same? In addition, from the perspective of cable cost, under the same current-carrying capacity, the cost of the metal conductor material of aluminum conductor cable is much lower than that of copper conductor cable. About a quarter or so?
Professor Wu Changshun of the Shanghai Cable Research Institute of the National Wire and Cable Quality Inspection Center believes that in the case of such a high price of copper, whether it is the cable user or the design unit, it is entirely feasible to select the aluminum core cable under the condition of ensuring the same ampacity. Not only will cable manufacturers be able to avoid risks, they will be conducive to the healthy development of the industry, and they will also play a role in restraining the rise of copper prices.
Industry insiders believe that the use of copper clad aluminum wire in the wire and cable industry is also a good way to ease the pressure on the current business. The aluminum wire has a bimetal wire drawn from a layer of copper and has a small specific gravity and good transmission performance. It is especially suitable for the inner conductor of RF coaxial cable. Compared with pure copper wire, its density is about 40% of pure copper, and its transmission characteristics is better than pure copper wire. It is an ideal RF coaxial cable branch line inner conductor. Assume that China's wire and cable industry has realized the replacement of aluminum with copper, which can save a large amount of limited copper resources