W pracy określono wpływ kąta ciągnienia na warunki smarowania i własności mechaniczno-technologiczne drutów ze stali niskowęglowej. Wielostopniowe ciągnienie drutu wstępnie umocnionego o średnicy 2,2 mm na drut o średnicy 1,0 mm zrealizowano w 7 ciągach z prędkością końcową 25 m/s. Wykazano, że w procesie ciągnienia wielostopniowego z dużymi prędkościami cienkich drutów ze stali niskowęglowej kąt ciągnienia wpływa w sposób istotny na warunki smarowania i własności mechaniczne drutu.
EN
The study determined the influence of the drawing angle on the lubrication conditions and mechanical and technological the properties of low carbon steel wires. Multi-stage pre strengthened wire drawing with a diameter of 2.2 mm into a wire 1.0 mm in diameter was performed in seven drafts with the final speed of 25 m/s. It has been shown that in the process of multistage drawing of thin wires of low carbon steel at high speeds, the drawing angle significantly affects the lubrication conditions and mechanical properties of the wire.
The paper contains the theoretical and experimental analysis of the impact of the drawing angle on the drawing process and the properties of low carbon steel wires. A multi-stage drawing wire rod with a diameter of 5.5 mm on a wire with a diameter of 1.0 mm has been carried out in two stages. The first one consisted of preliminary drawing wire rod for the wire with a diameter of 2.2 mm which was next subjected to the drawing process at a speed of 25 m/sec at the final wire with a diameter of 1.0 mm. The wires were drawn in conventional dies with drawing angle α = 3, 4, 5, 6, 7 degrees. For the wires drawn in respective variants, the investigation of the mechanical properties was performed and the amount of lubricant on the surface of steel wires was determined. Numerical analysis of the process of drawing in the Drawing 2D complemented the experimental studies. It has been shown that when drawing at high speeds, properly chosen the value of the angle of the working part of the die can improve the lubrication conditions and mechanical properties of steel wires.
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