YUANXIAN HIGH-TECH MATERIAL TRADING (TIANJIN) CO.,LTD

  Prestressed Material The prestressing steel strand  used in prestressing is typically made of high-strength, low-relaxation steel. It is commonly known as prestressing strand or prestressing wire. The prestressing steel strand is composed of multiple individual steel wires twisted together to form a helical shape. The wires are usually made of high-carbon steel with a diameter ranging from 5 to 15 millimeters. The steel used for prestressing strand has high tensile strength, typically in the range of 1,860 to 2,200 megapascals (MPa). This high strength allows the strand to withstand the forces applied during prestressing without breaking. To enhance the durability and performance of the strand, it is often coated with a protective layer of zinc or epoxy. This coating helps prevent corrosion and improves the bond between the strand and the surrounding concrete. Prestressing strand for prestressed concrete is commonly used in various construction applications, such as precast ...

  High Tensile Strength 7 Wire PC Strand 7 Wire PC Strand is the steel strand which has been given a stress-relieving heat treatment.Composited with 7 wires , the diameter of the straight centre-wire is greater than the diameter of the outer helical wires . The latter is tightly spun around the centre wire with a pitch.7 Wire PC Strand is with features, low relaxation , high strength , high elongation. And widely being used in precast area.   Commonly available sizes for 7-wire strands include 9.3mm, 11.1mm, 12.7mm, 15.2mm, and 17.8mm. These sizes are often used in prestressed concrete applications such as post-tensioning systems for bridges, buildings, and other large-scale structures.   ADVANTAGES 7-wire PC (prestressed concrete) strand offers several advantages in the construction industry, making it a preferred choice for various applications. Here are the key advantages of using 7-wire PC strand:   1. Increased Structural Strength: 7 wire PC strand pro...

  Prestressed Steel Wire Prestressed steel wire is a kind of steel wire made of carbon steel wire material, and used in prestressed concrete structures. High-strength, low-relaxation, supply in coil, large-length, low-consumption, spiral rib steel wire has strong bond with concrete. There are three types, they are Plain PC wire, spiral rib PC wire, indented PC wire. According to the surface coating, prestressed concrete steel wire can be divided into uncoated prestressed steel wire,  prestressed epoxy resin coated steel wire  and  galvanized prestressed steel wire .   Prestressed PC Steel Wire, Diameter, Intensity Prestressed PC (prestressed concrete) steel wire is a type of high-strength steel wire specifically designed for use in prestressed concrete structures. It is commonly used in applications such as bridges, buildings, railway sleepers, and other infrastructure projects. The diameter and intensity (tensile strength) of prestressed PC steel wire can ...

  PE Battery Separator Our company has many years of experience in the field of lithium battery separators. At present, there are two production processes, wet method and dry method, with a monthly supply capacity of 20 million square meters.   The raw materials used in the dry method are of good fluidity and low molecular weight (ie, simpler raw materials), so the high temperature can only reach 135 degrees (thermal shutdown temperature), and it will shrink (<5%) when heated, and Safety is not suitable for high-power, high-capacity batteries; dry method can do three-layer film, the advantage of three-layer film is that the thermal shutdown temperature is 135 degrees, but the thermal stability temperature is 160 degrees, which can prevent thermal inertia, there is a space of 25 degrees, which is safer.   The wet method uses non-flowing, high molecular weight raw materials, and the thermal shutdown temperature can reach 180 degrees (the ceramic inorganic separators can ...