Stainless steel wire or stainless steel wire, the main wire spring line and two screws line, for stainless steel wire rod in use process, the phenomenon of common drawing wire break, and the cause of stainless steel wire drawing wire break in, poor quality of wire rod surface, after rolling of wire rod surface has become scarred, indentation flaws, cracks in the surface defects in the process of drawing the source, from the edge The section extends to the center, forming a inclined cleft fracture. When we are using stainless steel wire, in order to prevent the occurrence of this kind of matter, China standard parts network tells you the following measures can be controlled.

First, surface quality. There are two factors affecting the surface quality of wire: billet quality and rolling. The defects of casting billet include slag, scar and micro-crack, which can be solved by the control of two cold water in casting. Steel rolling is mainly oxide sheet pressing, folding and scratching, strengthening inspection and process control can prevent the occurrence of surface defects.

Second, refining process optimization after furnace. The inclusions in wire include Al2O3, SiO2 and CaO brittle composite inclusions. The size, shape and plasticity of inclusions can be improved and the purity of molten steel can be improved by reducing the content of free oxygen in molten steel and controlling the basicity of slag during post-furnace refining. By increasing the blowing time and flow rate of argon, the large inclusions can fully float up. The brittle inclusions with high melting point were transformed into low melting point inclusions by plasticizing to facilitate deformation during cold working.

Third, reduce the superheat of molten steel, control the center of billet shrinkage, porosity and composition segregation. Control the pouring temperature of molten steel, casting temperature and casting speed match, use electromagnetic stirring of mold and light pressing technology, improve the carbon segregation and inclusion aggregation of high carbon steel, reduce the brittle fracture caused by carbon segregation.