For copper, it may be commonplace for everyone. In daily life, we can all say that we cannot do without copper products. However, even so, there are still many people who cannot correctly distinguish the same material. Today, let me lead you to distinguish various types of copper materials and talk about their uses.

Copper materials can be simply divided into two categories, one is pure copper, and the other is the composition of various copper alloys. What is copper alloy? According to Baidu Wenku's explanation, alloys are substances with metallic properties synthesized by certain methods from two or more metals and metals or non-metals. Generally obtained by melting into a uniform liquid and solidification. Copper alloy, which obviously means that the alloy contains copper element. It can be simply understood as a copper alloy, which is an alloy composed of pure copper as the matrix and one or several other elements added.

According to China's classification standards for non-ferrous metals, pure copper is further divided into three types, namely oxygen free copper, red copper, and phosphorus deoxidized copper. The purity of oxygen free copper is greater than 99.95%. Due to its high conductivity, stable processing performance, good weldability, corrosion resistance, and low temperature performance. Therefore, it is widely used for manufacturing components such as busbars, conductive strips, waveguide tubes, coaxial cables, vacuum seals, vacuum tubes, and transistors; Usually, when we refer to red copper, it refers to copper with a content of over 99.95%, which must have only a very small amount of impurities. Because the purity of red copper is very high, its conductivity is greatly reduced compared to other materials of copper. Copper is widely used in the production of electrical equipment such as generators, busbars, cables, switchgear, transformers, and heat exchangers; The copper content of phosphorus deoxygenated copper reaches over 99.90%, with good welding and cold bending properties. It is widely used in the production of gasoline or gas delivery pipes, drainage pipes, condenser pipes, mine pipes, condensers, evaporators, heat exchangers, and train box parts.

The classification of copper alloys is generally divided into four categories: brass, bronze, white copper, and silver copper.

Brass refers to an alloy based on copper and zinc. Due to its high strength, high hardness, and strong chemical corrosion resistance, brass is widely used in the production of heat exchangers and condensers, low-temperature pipelines, submarine transportation pipes, and in the manufacturing of plates, bars, rods, pipes, casting parts, etc;

Bronze originally refers to copper tin alloy. Because bronze has high strength, good resistance to Sliding friction, excellent cutting performance and good welding performance, and has good corrosion resistance in the atmosphere and fresh water, bronze is widely used in spring, spring and other elastic elements and pipe fittings, chemical equipment, wear-resistant parts and antimagnetic parts, as well as parts bearing friction in aviation, automobile, tractor industry and other industries; White copper is a copper based alloy with nickel as the main additive element. It has good ductility, high hardness, beautiful color, corrosion resistance, and rich deep drawing performance. It is widely used in shipbuilding, petrochemical, electrical appliances, instruments, medical equipment, daily necessities, handicrafts, and other fields. It is also an important resistance and thermocouple alloy.

The disadvantage of white copper is that the main additive element nickel is a scarce Strategic material, and the price is relatively expensive;

Silver copper is a binary alloy of silver and copper, characterized by strong sulfide resistance, good conductivity, flowability, and wettability, good mechanical properties, high hardness, wear resistance, and resistance to fusion welding. Widely used for making contacts, conductive rings, and fixed contacts for air circuit breakers, voltage controllers, telephone relays, contactors, starters, and other devices. Vacuum solder, commutator, and can also be used to manufacture coins, decorations, and tableware.

Article source: Internet

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