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Introduction Of Different Process Of Wire Surface Treatment
- Sep 15, 2017 -

   Rods and wires are hot-rolled steel products with a certain diameter, and some of them are made into final products by cold drawing. In general, the iron oxide skin produced by hot-rolled, lead-bath quenching and intermediate annealing on the surface of rods and wires is removed by pickling or mechanical method before cold drawing. However, there is no complete removal of the tin oxide, which leads to wire-drawing breakage, the production of steel defects and mechanical properties of the decline.Wire Surface Treatment

    In this study, the residual oxidized iron sheet was produced by artificial method on the surface of carbon steel s45c wire for mechanical structure, and the effect of residual oxidized metal sheet on drawing stress and breaking was studied by experiment. Test materials and test methods-test materials-ø6.0mm s45c silver wire. The atmospheric environment of 810 ℃ and 1050 ℃ was annealed for the test wire, and the annealing time was 10min and 60min two. And then in the direction of wire length alternately make the part of the iron oxide and the tin-free metal.Wire Surface Treatment

    The removal method of the tin oxide is shot peening and pickling. The test materials of the two methods were produced. In this paper, the tensile stress and the deformation behavior of the iron oxide sheet were investigated by wire drawing processing. The influence of the iron oxide on the drawing stress the tensile stress of the wire drawing is investigated by alternating wires in the length direction with the part of the oxidized iron sheet and the non-oxide iron sheet. The heat treatment of the test material is 810 ℃ insulation 60min. The method of removing the tin oxide has two kinds of spraying pill and pickling.Wire Surface Treatment

   Draw the wire of Ø 5.74 to ø5.14mm to determine the tensile stress. The results indicate that the tensile stress of the residual parts of the oxidized iron sheet is greater than that of the blast-peening and pickling. It can be concluded that the iron oxide increases the possibility of the end-breaking during cold drawing, and has an unfavorable effect on the cold drawing process.Wire Surface Treatment