Application range of stainless steel stranded wire – news

Application range of stainless steel stranded wire – news

The power system uses galvanized steel strands, steel core aluminum strands use galvanized steel strands, suspension bridges use galvanized steel strands, and bridges also use low-relaxation prestressed steel strands and anchor steel strands.

Application range of galvanized steel strand

Stranded wire is a steel product made by twisting multiple steel wires. The surface of carbon steel can be coated with galvanized layer, zinc-aluminum alloy layer, aluminum cladding, copper cladding, epoxy coating, etc.

1. Classification by purpose: prestressed steel strand, galvanized steel strand (for power) and stainless steel strand. Among them, the prestressed steel strand coated with anti-corrosion grease or paraffin wax and then coated with HDPE is called unbonded steel strand. Wire, prestressed steel stranded wire also uses galvanized or galvanized aluminum alloy steel wire.

2. Classified by material characteristics: steel stranded wire, aluminum-clad steel stranded wire, stainless steel stranded wire.

3. Classification by structure: Prestressed steel strands can be divided into 7 wires, 2 wires, 3 wires, and 19 wires according to the number of wires. The commonly used structure is 7 wires. Galvanized steel strands and aluminum-clad steel strands for power use are also divided into 2, 3, 7, 19, and 37 structures according to the number of steel wires. The commonly used structure is the 7-wire structure.

4. Classified by surface coating: it can be divided into (smooth) steel strand, galvanized steel strand, epoxy-coated steel strand, aluminum-coated steel strand, copper-coated steel strand, and plastic coating Steel stranded wire, etc.

The manufacturing process of the steel strand is divided into monofilament manufacturing and steel strand manufacturing. (Cold) wire drawing technology is used when manufacturing monofilament. Depending on the material of the product, it can be high carbon steel wire rod, stainless steel wire rod or medium and low carbon steel wire rod. If galvanizing is required, the monofilament should be electroplated or hot-dipped. In the manufacturing process of steel strands, multiple steel wires are twisted into products by a stranding machine. After the pre-stressed steel strands are formed, they need to be continuously stabilized. The products are generally completed with a reel or no reel.

The commonly used galvanized steel strands are uncoated low-relaxation prestressed steel strands, used for prestressed concrete and galvanized. China Coal is often used in bridges, construction, water conservancy, energy, and geotechnical engineering. Unbonded prestressed galvanized steel strands or single strand steel strands are often used in floor and foundation projects.