The main purpose and types of brass tubes

Category: Condensing tube series, mainly used in various heat exchangers and condenser condenser tubes with suspended solids greater than 500PPM, seawater or coastal groundwater as the cooling medium. The main chemical composition of this alloy is: Cu, As, balance It is Zn. This product is generally used in inland power plants with fresh and clean water without corrosion of suspended solids in rivers, lakes and springs, and can also be used in other liquid and juice processing equipment.

In addition, the product is also widely used in sugar and food industries. In these environments, arsenic can prevent the leaching of zinc, and after complete annealing, it can also prevent stress corrosion cracking, pitting and erosion. Condenser tube series, the main chemical composition of the alloy is: Ni, Fe, Mn, the balance Cu. The addition of Fe and Mn in the alloy greatly improves the corrosion resistance of this material. In clean seawater, the alloy can accept water flow speeds up to 2.2-2.5%/s. The maximum acceptable speed in the salt solution can reach 4m/s. The alloy can avoid stress corrosion cracking and high temperature point denickel.

Therefore, the alloy has good corrosion resistance to clean or polluted sea water and river bay water, and is widely used in heat exchangers that use sea water such as power stations, desalination, and petrochemical plants. The characteristic of Hsn70-1B pipe is that it can form a smooth, uniform, strong and dense protective film on the inner surface of the copper pipe under the water quality conditions of the power plant. Long-term use in fresh water, it is not easy to scale. The brass tube is beneficial to increase the heat conduction efficiency of the copper tube and improve the service life. 2) The Hsn70-1AB new alloy condenser tube is based on the single type 2 alloy Cu-Zn-Sn system, and uses the synergistic effect of As, B, Ni, and Mn to achieve multiple small amounts of solid solution strengthening and improve corrosion resistance and resistance Technology for erosion corrosion performance. Condenser tube series, the main chemical composition of the alloy is: Ni, Fe, Mn, the balance Cu. The addition of Fe and Mn in the alloy greatly improves the corrosion resistance of this material, and can avoid stress corrosion cracking and high temperature spots Denickeling. Therefore, the alloy has good corrosion resistance to clean or polluted sea water and river bay water. It is mainly used for thermal power, nuclear power condensers, water heaters, distillers, oil coolers, distilled water devices, etc. Switch. Brass tubes are mainly used in electronic technology, construction, pen-making and other industries. Brass tubes use brass as raw materials. Brass is a yellow copper-zinc alloy. In addition to copper, some also contain other If you use brass with high impurity content to make brass tubes, it will definitely affect the quality of brass tubes. The quality of brass directly determines the quality of brass tubes. Especially during the Eleventh Five-Year Plan period, the slogan of environmental protection and energy saving was put forward. Environmentally friendly products have risen to a high level again, and brass tubes made of brass with more impurities are definitely not environmentally friendly, and environmentally friendly products that meet environmental protection standards are enterprises. Favorite.

Copper series production technology process and its application method

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• 3. A method for manufacturing copper and its special-shaped blanks Nickel-copper material composite technology—— Cleaning agent for steel, aluminum and copper materials for the manufacture of nickel-copper electrodes for spark plugs

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