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12.7mm 7 Wire 1860Mpa PC Strand Prestressed
Steel strand corrosion resistance is better: bimetal no residue, better corrosion resistance.
The horizontal continuous casting process uses high temperature melting, and the residue will overflow the copper surface after calcination, and will not remain in the rigid conductor covered with copper, so there will be no internal corrosion. When flat steel or building foundation is used as the grounding body, the reliability of steel strand grounding device is affected by poor corrosion resistance. Galvanized Angle steel (round steel) as a grounding body, slow steel corrosion. However, because zinc is more active than steel, zinc corrodes faster than steel. Due to the Angle between the galvanized layer and the soil, the corrosion is constantly changing, the stability is poor, the service life is short (generally less than 5 years), and a lot of work needs to be done.
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Unique steel strand manufacturing process: horizontal continuous casting production process. In the continuous casting process, when the electrolytic copper is heated to 1200℃, the copper bonding surface forms an alloy coating, and the bimetal interface is completely firmly bonded. The steel strand realizes the ductile metallurgical welding of copper and steel, and becomes a single composite material, which can be stretched at will like a single metal, without breaking, peeling, cracking and other phenomena.
Steel strand corrosion resistance is better: bimetal no residue, better corrosion resistance. The horizontal continuous casting process uses high temperature melting, and the residue will overflow the copper surface after calcination, and will not remain in the rigid conductor covered with copper, so there will be no internal corrosion. When flat steel or building foundation is used as the grounding body, the reliability of steel strand grounding device is affected by poor corrosion resistance. Galvanized Angle steel (round steel) as a grounding body, slow steel corrosion. However, because zinc is more active than steel, zinc corrodes faster than steel. Due to the Angle between the galvanized layer and the soil, the corrosion is constantly changing, the stability is poor, the service life is short (generally less than 5 years), and a lot of work needs to be done.
A number of steel wire twisted steel products called steel strand, commonly used as load-bearing cable, cable, strengthening core, prestressed materials, stop cable, grounding wire. It is widely used in bridge, power, water conservancy, construction, road fence and other engineering fields.
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Epoxy-coated Prestressing Steel Strand
The application of prestressed steel strand in concrete beams is very wide, including Bridges, high-rise buildings and water conservancy projects. Among them, bridge is one of the main fields of application of prestressed steel strand. As an important part of transportation, the quality and safety of Bridges are crucial to social development. The use of prestressed steel strand can greatly improve the bearing capacity and durability of the bridge, and ensure the safe operation of the bridge.
When the concrete beam bears the load during use, the prestress of the prestressed steel strand will be gradually released, so that the concrete beam is in a state of compression. At this time, the bearing capacity and durability of concrete beams will be greatly improved.
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Non-stick steel strand technology has been applied many times in social practical system engineering, especially in the vertical and vertical development directions of three-way prestressed box girder. Good performance. The application of longitudinal reinforcement bars in prestressed simple supported beams makes the small span first free from the tension bench, and then free from the process of hole formation and grouting, thus reducing the construction equipment.
All these make the prestressing process in the production and manufacture of simple support beams simple and easy to meet the site construction conditions. As this development begins with the study of the prestressing process of bridge structures, it can also be widely used in China's industrial and civil buildings, water conservancy construction projects, civil structures repair and reinforcement of various prestressed concrete internal structures.
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Prestressed steel strand(PC strand)
Steel strand corrosion resistance is better: bimetal no residue, better corrosion resistance.
The horizontal continuous casting process uses high temperature melting, and the residue will overflow the copper surface after calcination, and will not remain in the rigid conductor covered with copper, so there will be no internal corrosion. When flat steel or building foundation is used as the grounding body, the reliability of steel strand grounding device is affected by poor corrosion resistance. Galvanized Angle steel (round steel) as a grounding body, slow steel corrosion. However, because zinc is more active than steel, zinc corrodes faster than steel. Due to the Angle between the galvanized layer and the soil, the corrosion is constantly changing, the stability is poor, the service life is short (generally less than 5 years), and a lot of work needs to be done.
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