Copper tube, a type of non-ferrous metal tube. It is a seamless tube made by pressing and drawing. High low-temperature strength. Commonly used in manufacturing heat exchange equipment such as condensers. Also used for assembling low-temperature pipelines in oxygen production equipment. Small diameter copper pipes are commonly used to transport pressurized liquids (such as hot and cold water systems, lubrication systems, oil pressure systems, etc.) and as pressure gauges for instruments.

Copper pipes are much more widely used than pure iron, with 50% of copper being electrolyzed and purified into pure copper every year for use in the electrical industry. The purple copper mentioned here does need to be very pure, with a copper content of over 99.95%. A very small amount of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the conductivity of copper. The presence of oxygen in copper (which is easily mixed with small amounts during copper smelting) has a significant impact on conductivity, and copper used in the electrical industry generally must be oxygen free copper. In addition, impurities such as lead, antimony, bismuth, etc. can prevent copper crystals from combining together, causing thermal brittleness and affecting the processing of pure copper.

This high-purity copper is usually refined by electrolysis: impure copper (i.e. crude copper) is used as the anode, pure copper is used as the cathode, and copper sulfate solution is used as the electrolyte. After the current passes through, the impure copper on the anode gradually melts, and pure copper gradually precipitates on the cathode. Copper refined in this way; The purity can reach 99.99%. Purple copper is a relatively pure type of copper, which can generally be approximated as pure copper. It has good conductivity and plasticity, but weaker strength and hardness.

Characteristics of Copper Tube

High strength: The material density of copper tube is high, and it has good toughness and plasticity, which can ensure the high-strength application of copper tube in industrial production and building decoration fields.

Good corrosion resistance: Copper pipes have excellent corrosion resistance and will not cause corrosion, oxidation, or other problems due to the erosion of water, gas, and chemicals. They can ensure long-term operation and use under high temperature, high pressure, and intense movement conditions.

Excellent thermal conductivity: Copper tubes have good thermal conductivity and can quickly transfer internal heat and pressure, making them suitable for the water, gas, and refrigeration industries.

Good processing performance: Copper pipes have good processing performance and can be molded and processed according to customer requirements. They can also achieve automated production, improve production efficiency, and reduce costs.

The application fields of copper tubes are industrial manufacturing. Copper tubes are suitable for manufacturing products with high strength, high density, high temperature, and high pressure, such as aviation, aerospace, machine manufacturing, and automotive manufacturing.

Copper pipes can be made into various household and electrical products in the consumer goods field, such as locks, hangers, lamps, faucets, wires and cables, etc.

Copper pipes in the field of architectural decoration can be used for indoor and outdoor building decoration, such as railings, door handles, lamp posts, roof drainage systems, etc.

Copper pipes in the water, gas, and refrigeration industries are suitable for pipeline systems that transport water, gas, and refrigerants, such as water pipes, train brake pipes, automotive refrigeration pipes, and air conditioning pipes.

Due to its adaptability to temperatures ranging from -196 ° C to 205 ° C, copper pipes have good toughness, bendability, and torsion resistance. They are not easily cracked or broken, and have good resistance to frost heave and impact. Therefore, copper pipes can withstand extremely cold and hot temperatures and can be installed under any climate or temperature conditions. Their performance will not be reduced due to long-term use and temperature changes.

Copper is an inert element with only stronger activity than gold and silver. Its black oxide layer on the surface is the hardest protective layer, with strong corrosion resistance and no pollution to water quality. Therefore, copper and copper alloys are increasingly favored in residential and public buildings, and are widely used in water supply, heating, gas supply, and fire sprinkler systems, becoming the preferred materials at present.

Article source: Internet

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