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Deqing Chengjian Metal Wire Drawing Co., Ltd
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All technology indexes of our leading product CCA have reached the national electronic industry standard(SJ/T11223-2000) and American ASTM B566-93 standard.Its copper layer takes refined copper above 99.97% purity under the cladding welding&drawing method, cladding the plansihing copper belt coaxially on the aluminium house main, undergoing many times of drawing and heat treatment, have accieved the need of customers' wire size demand and the technology demand of mechnamics and electrics. There forms a stable metallurgy combination between copper layer and aluminium stick heart yarn, and copper layer distributes equality towards the circumferencial and portrait direction with good concentricity. It can make the different metal materials become an indiscerptible unity, which can be drawed like a single metal, but the ratio between copper and aluminium will change while drawing, but the copper layer volume is relatively stable, with smoothly and round surface,without any defect.
Carrying many characteristics of good conductivity ,high strength and strong brazability of copper and low density and easily to process of aluminium, CCA has its own features of density equalilty of copper layer, high compactness and fine enlonging capacity. This bimetal compound lead can be used into the coaxial cable conductor with high singal transmitted features, and become the widely-used lead in CATV and other high frequency appliances. CCA is also the best choice materials for the coaxial cable conductor and cable wire of many electric equipments. △CCA Features：
1．DR Resistivity：CCA resistivity is 1.5 times that that of pure copper wire. CCA weight is about 1.2 times thant pure copper wire on the same resistivity. According to the skin effect,its resistivity is the same with pure copper wire while above the 5MHZ. So CCA electric capactiy is as well as pure copper wire while is used in digital cable and singnal cable with high frenquency.
2.Compared with pure copper wire, CCA has no value for larceners, because it become impossible to depart the pure copper cladding layer from aluminium heart yarn,so it has special function of anti-burglary.
3. With light weight,CAA is easy to transmit and fixed, on the other hand it can reduce labour cost.
4.CCA has better plasticity than copper wire, and it will never produce insulated oxide like aluminium, so it is easy to tackle with better conductivity.
5.Our products takes the international leading craftwork of cladding welding&drawing method, so even in the strict wringing test, it will never take off,craze or flake,having no harm to human health and environment.
△Capacity comparision between CCA and other products：
Compared with pure copper conducting wire: CCA has many advantages of good conductivity, light weight, available economical effects, softness and easy operation in construction. Length ratio between CCA and pure copper wire is 2.45:1 under the same wire size and weight, so buying 1 ton CCA is equal to buying 2.45 tons' pure copper wire, having great advantages of saving production cost.
Compared with pure aluminium wire: CCA has a higher conductivity with enhanced tensile strength, enlongation percentage and fine brazability, for its surface is cladded coaxially with a layer of pure copper, so it has good brazability as well as copper and its mechnamics and appliance capacity have improved greatly.
△ Our company can offer products with wire size of 0.10mm-1.02mm and excellent service, and aslo we can manufacture various specs' products according to customers' demand.
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