1870MPa级热镀锌制绳钢丝生产工艺

介绍1 870 MPa级热镀锌制绳钢丝生产工艺.生产Φ1.4～4.0 mm,1 870 MPa级A类热镀锌制绳钢丝宜选择先拉后镀生产工艺,采用82B盘条生产的Φ2.80,2.90,3.05 mm制绳钢丝所用的铅淬火半成品分别为Φ7.70,8.00,8.30 mm,镀后锌层面质量分别为263.8,273.1,275.9g...

Production process of 1 870 MPa grade hot galvanizing steel wire for rope

To introduce production process of 1 870 MPa grade galvanized steel wire for rope. First drawing then galvanizing production process should be chosen to produce diameter 1.4 - 4.0 mm, 1 870 MPa grade A type hot galvanizing steel wire for rope. The patent semi-finished product to produce diameter 2.80, 2.90, 3.05 mm by using 82B wire rod is diameter 7.70, 8.00, 8.30 mm respectively, zinc coat mass fraction after galvanizing is 263.8, 273.1, 275.9 g/m^2. Drawing after medium galvanizing production process should be chosen to produce diameter 0. 8 - 2.4 mm, 1 870 MPa grade AB type hot galvanizing steel wire for rope. The patent semi-finished product to produce diameter 1.60, 1.70, 1.80 mm by using 70 steel wire rod is diameter 3.20, 3.40, 3.60 mm respectively, zinc coat mass fraction before drawing after galvanizing is 308.6, 309.7, 311.8 g/m^2. First galvanizing then drawing production process should be chosen to produce diameter 0.4 - 1.6 mm, 1 870 MPa grade B type hot galvanizing steel wire for rope. The patent semi-finished product to produce diameter 0.65, 0.60, 0.80 mm by using 70 steel wire rod is diameter 1.90, 1.75, 2.30 mm respectively, zinc coat mass fraction before drawing after galvanizing is 233.5, 228.6, 255.4 g/m^2.