Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.

Understand High-precision Copper Strips

High-precision copper strip refers to various technical specifications (such as chemical composition, thickness deviation, shape and surface quality) and physical properties (generally including tension, hardness and bending force) that meet higher precision requirements and meet the requirements of similar products in the Chinese market. (higher) or (relative higher) copper strip required by the national standard (GB).


1. High precision zinc white copper strip


Cupronickel alloys are alloys containing copper-nickel alloys and zinc in varying proportions, but do not contain silver. "Silver white" refers to the color of the alloy. Zinc cupronickel strip is bright and silvery white, with good machinability, magnetic shielding, corrosion resistance and high elasticity.


High-precision zinc-nickel-nickel copper strips are widely used in crystal resonator shells, mobile phone shields, glasses frames, optical instruments, silverware, jewelry, zippers and keys, musical instruments and coins, etc.


2. High-precision lead frame, LED lead wire and copper strip for IC lead frame


Three different types of alloys make up the three main families of copper strips for lead frames: copper-iron-phosphorous alloys, copper-nickel-silicon alloys, and copper-chromium-zirconium alloys. Copper tape for high-precision lead frame has high electrical and thermal conductivity, high strength and corrosion resistance. C194 and KFC are the two most representative types of copper-iron-phosphorus alloys, and they are also the most commonly used.


Copper strips for high-precision lead frames are the basic raw materials for manufacturing integrated circuits, semiconductor discrete devices and LED lead brackets, and are mainly used for integrated circuits, large and medium power tubes, light-emitting diodes and triodes.


3. High-precision brass strip


Brass is a copper alloy containing copper and zinc, and is the most widely used high-precision copper alloy. Brass has excellent mechanical properties, physical properties, high electrical and thermal conductivity and corrosion resistance.


High-precision brass strips are widely used in connectors and accessories of electronics, telecommunication equipment and household appliances, interior decoration, clothing accessories, vehicle water tanks, and batteries.


Our company's main business areas include copper processing, high-tech materials and construction materials. Jintian Copper has more than 20 production and trading subsidiaries. The main products include but not limited to copper wire, copper rod, copper tube, copper strip, copper plate, enameled wire, valves and magnetic materials. The output of main products ranks in the forefront of the industry. The company has established a national-level enterprise technology center and a national-level accredited laboratory, and has obtained the status of "national-level post-doctoral workstation". Welcome to consult.