Fullway copper industry

Copper-tungsten alloy summarizes the advantages of copper and tungsten, high strength, high specific gravity/high temperature resistance, arc ablation resistance, good electrical and thermal conductivity, and good production functions. Tungsten copper alloy (general scale of composition is WCu7~WCu50) has uniform microscopic arrangement, high temperature resistance, high strength, arc ablation resistance, high density; moderate electrical and thermal conductivity, and is widely used in military high temperature resistant materials, electrical alloys for high voltage switches,

Electrodes and microelectronic materials are produced electrically, which are copper clad steel strips manufacturer widely used in aerospace, aviation, electronics, electric power, metallurgy, machinery, sports equipment and other occupations as parts and components.92g/cm3); copper has excellent electrical and thermal conductivity. The surface of electrical production products has high surface smoothness, high precision, and low loss. The alloy is made in a factory setting, with highly confusing components such as microprocessors.

In addition, in the high-temperature liquid phase sintering process, it was found that the size of the tungsten and copper powders also affect the sintered fine density of the tungsten-copper composite material. 3.) in trace amounts (0. The basic situation will be introduced below. The study indicates that Co and Fe have the best activation effect, which can significantly improve the fine density of tungsten-copper materials.

Therefore, in order to improve the density of the material, after the liquid phase sintering, it is necessary to add related post-treatment processes such as repressing, hot pressing, and hot forging, etc.. Activation strengthened liquid phase sintering can make tungsten-copper materials achieve higher relative density, hardness, bending strength and other functions. They pre-fired tungsten skeletons prepared at 900 ℃ and infiltrated at 1500 ℃ for 9O～120min.

The main operations are red copper, national standard red copper, forged red copper, imported red copper, red copper plate, beryllium copper, tungsten copper, chromium copper, phosphor bronze, aluminum bronze, cup copper, tin bronze, red copper plate, brass plate, Copper pipe, copper wire, aluminum wire, various grades of industrial aluminum, environmental protection aluminum, aluminum plate. The most outstanding feature is its excellent wear resistance.

Founded in 2000, it is one of the largest copper and aluminum raw material distributors in the Shanghai regional plan. It has high strength and outstanding wear resistance. It is used for high-strength screws, nuts, copper sleeves, sealing rings, and wear-resistant parts. Aluminum bronze can be strengthened by heat treatment, its strength is higher than tin bronze, and its high temperature oxidation resistance is also better. Widely used in various industries such as mold making, mechanical equipment, plastics, electronics, hardware products, etc.5%, and sometimes also participate in appropriate amounts of iron, nickel, manganese and other elements to further improve the function. It has good high temperature corrosion resistance and oxidation resistance in the atmosphere, fresh water and copper clad aluminum tube sea water.

The scope of application can be used in electrical appliances, steamed buildings and chemical industries, especially printed circuit boards for terminals, copper tape for air cover, air cushions, and busbar terminals. As an EDM electrode, it has good uprightness, no bending of thin slices, and advanced advantages of brightness. ●In connectors, guide wires, and other products that require high-strength wires.

Features The use of chromium copper has excellent electrical conductivity, thermal conductivity, high hardness, wear resistance, explosion resistance, crack resistance and high softening temperature, fast welding speed, low cost, suitable for electric spark and welding electrodes. Electromagnetic switch, pen holder, roof board, etc.

This is the use of the copper strip for rolled copper foil  in the latest technical field of semiconductor integrated circuits, creating a new situation.The electronics industry is an emerging industry, and in the course of its prosperous development, new products and new fields of use of steel have been continuously announced. In practice, in order to process at high speed and in large quantities, the lead structure is usually stamped on a metal strip in a specific placement method. The number of transistors that can be made on a single chip area smaller than Xiaomu's nails has already reached 100,000 or more than one million. After alloying, it can control its function in a wide range and can better satisfy the lead structure.

Its presentation has caused huge innovations in computers and become the foundation of modern information technology. Printed circuit Copper printed circuit is to use copper foil as the surface and paste

Pay attention to the prospecting. ④Volcanic organization, sapite-horny porphyry volcanic tuff, jet sedimentary rock (iron-manganese siliceous rock, iron jasperite, layered siliceous rock), light-colored sand (conglomerate) rock in the red layer, skarn, Ultra-basic rocks, intermediate-intermediate acid porphyry, stromatolite fine dolomite, and carbon-containing volcanic tuff layers are all the best targets for finding copper. Copper deposits can often be symbiotic or associated with the following elements: lead, zinc, tungsten, molybdenum, tin, gold, silver, iron, etc.

The types of copper deposits are: porphyry copper deposits, copper-nickel sulfide copper deposits, massive sulfide copper deposits, layered copper deposits (volcanic copper deposits, sand, shale, conglomerate copper deposits, carbon Acid copper mine), skarn copper mine and hydrothermal copper mine. Such as Qingpan petrification-yellow iron sericite petrification-mudification-potashification-silicification, discoloration in the red layer (volcanic red layer or sand shale red layer), etc. So how to find copper mine?

H62 brass tube chemical composition: 　　 copper Cu: 60.3 antimony Sb: ≤0.08 　 boron P: ≤0.2～30 　　 heat treatment specification: hot working temperature 650～850℃; annealing temperature 600 ～700℃; low temperature annealing temperature to eliminate internal stress 270～300℃.Brass is an alloy of copper and zinc Brass is an alloy of copper and zinc; the simplest brass is copper-zinc binary alloy, called simple brass or ordinary brass.08 　　 lead Pb: ≤0. By changing the content of zinc in brass, brass with different mechanical properties can be obtained.5 phosphorus P: ≤0.01 bismuth Bi: ≤0. In order to improve certain performance of brass, brass with other alloy elements added on the basis of one-yuan brass is called special brass.5 　 　 zinc Zn: residual lead Pb: ≤0.0～60.15 　　

beryllium Sb: ≤0.2～30mm) 　　 Grade: H62 　　 Standard: GB/T 1527-1997 　　Characteristics and scope of application: 　　 has good mechanical properties, good plasticity in hot state, acceptable plasticity in cold state, good machinability , Easy fiber welding and welding, corrosion resistance, but easy to produce corrosion cracking. Manganese brass has good mechanical properties, thermal stability and corrosion resistance; adding aluminum to manganese brass can also improve its performance and obtain a smooth surface casting. The higher the zinc content in brass, the higher its strength and the slightly lower plasticity. H59 brass standard: GB/T 2041-1989 Characteristics and Copper Tape For Transformer scope of application: 　　

In the process of uncoiling copper strips, surface tearing and deformation can often be seen, resulting in bonding defects. Bonding is easy to deform, reduce the plasticity of the copper tape for cable, and reduce the stamping performance, which will seriously affect the pass rate of the product.

1 Causes of bonding