scholarly journals OPTIMIZATION OF THE WIRE DRAWING ROUTE WHEN EQUAL UNIT COMPRESSIONS USING THE MATH CONNEX MATH PACKAGE

2021 ◽  
pp. 53-58
Author(s):  
O. B. Kryuchkov ◽  
A. A. Komolov ◽  
Yu. A. Dryukov ◽  
K. V. Rastov ◽  
E. V. Sedov ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Safety Factor ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
High Carbon ◽  
High Quality ◽  
The Wire ◽  
Drawing Mill

The results of a study of the drawing route with equal single crimps of a patent wire made of high-carbon steel 70 with a diameter of 2.8 mm using the MathConnex mathematical package (part of MathCad Pro) are presented. It is established that the use of the UDSATO 320 drawing mill with a drawing multiplicity of 10 allows to obtain a high-quality wire with a diameter of 1.0 mm with a temperature at the outlet of the wire no more than 250 C with a safety factor in the range of 1.8-2.7.

Pass Schedule of Wet-Wire Drawing Process with Ultra High Speed for Tire Steel Cord

2007 ◽  
Vol 340-341 ◽  
pp. 683-688 ◽  
Author(s):  
Sang Kon Lee ◽  
Won Ho Hwang ◽  
Dae Cheol Ko ◽  
Byung Min Kim ◽  
Woo Sik Ko
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
High Carbon ◽  
Wire Temperature ◽  
Steel Cord ◽  
The Wire

High speed multi pass wet wire drawing has become very common for production of high carbon steel cord because of the increase in customer demand and production rates in real industrial fields. Although the wet wire drawing is preformed at a high speed usually above 1000 m/min, greater speed is required to improve productivity. However, in the high carbon steel wire drawing, the wire temperature rises greatly as the drawing speed increase. The excessive temperature rise makes the wire more brittle and finally leads to wire breaks. In this study, the variations in wire temperature during wet wire drawing process were investigated. A multi pass wet wire drawing process with 21 passes, which was used to produce steel cord, was redesigned by considering the increase in temperature. Through a wet wire drawing experiment, it was possible to increase the maximum final speed from 1000 m/min to 2000 m/min.

Pass schedule design system in the dry wire-drawing process of high carbon steel

2002 ◽  
Vol 216 (3) ◽  
pp. 365-373 ◽  
Author(s):  
H H Jo ◽  
S K Lee ◽  
M A Kim ◽  
B M Kim
Keyword(s):  
Carbon Steel ◽  
Temperature Rise ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Maximum Temperature ◽  
Drawing Process ◽  
High Carbon ◽  
Wire Temperature ◽  
Pass Schedule ◽  
The Wire

Recently, high-speed drawing has become very common because of the increase in customer demands and production rate in real industrial fields. In the high-carbon steel wire-drawing process, the wire temperature rises greatly according to the increase in the final drawing speed. The rapid temperature rise makes the wire more embrittled and finally leads to wire breakage. Therefore, in this paper, an approximate wire temperature estimation method is proposed to control the maximum temperature rise in the wire-drawing process. Using these results, it is possible to develop the isothermal pass schedule programme, to design the wire-drawing process. Also, the conventional pass schedule can be redesigned by considering the pass schedule constraints. As a result, the wire temperature was considerably reduced and the productivity of the final product could be improved by about 11 per cent.

scholarly journals The Assessment Of The Structure And Properties Of High-Carbon Steel Wires After The Process Of Patenting With Induction Heating

2015 ◽  
Vol 60 (2) ◽  
pp. 855-858 ◽  
Author(s):  
S. Wiewiórowska ◽  
Z. Muskalski
Keyword(s):  
Heat Treatment ◽  
Carbon Steel ◽  
Induction Heating ◽  
High Carbon Steel ◽  
Continuous Heating ◽  
High Carbon ◽  
Temperature Range ◽  
Heating And Cooling ◽  
Steel Wires ◽  
The Wire

Abstract One of the most important types of heat treatment that high-carbon steel wires are subjected to is the patenting treatment. This process is conducted with the aim of obtaining a fine-grained uniform pearlitic structure which will be susceptible to plastic deformation in drawing processes. Patenting involves two-stage heat treatment that includes heating the wire up to the temperature above Ac3 in a continuous heating furnace (in the temperature range of 850÷1050°C) followed by a rapid cooling in a tank with a lead bath down to the temperature range of 450÷550°C. The patenting process is most significantly influenced by the chemistry of the steel being treated, as well as by the temperature and the rate of heating and cooling of the wire rod or wire being patented. So far, heating up to the austenitizing temperature has been conducted in several-zone continuous gas-fired or electric furnaces. Recently, attempts have been made in a drawing mill to replace this type of furnace with fast induction heating, which should bring about an energy saving, as well as a reduced quantity of scale on the patented wire. This paper presents the analysis of the structure and mechanical properties of wires of high-carbon steel with a carbon content of 0.76%C after the patenting process using induction heating for different levels of the coil induction power.

The Influence of the Value of Single Draft on Mechanical-Technological Properties of High Carbon Steel Wires

2010 ◽  
Vol 165 ◽  
pp. 371-376 ◽  
Author(s):  
Maciej Suliga
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Strength Properties ◽  
Drawing Process ◽  
Technological Properties ◽  
High Carbon ◽  
Steel Wires ◽  
Optimal Value

In this work the influence of value of single draft on mechanical-technological properties of high carbon steel wires was evaluated. For wires drawn with medium single draft (10.4 %, 15.5 % and 26.5 %) the investigation of mechanical-technological properties was performed thereby providing results on yield strength, tensile strength, elongation, contraction, number of twist and number of band. On the basis of numerical analysis of wire drawing process the influence of the value of single draft on inhomogeneity of strain was determined. It was established that in the range of medium single drafts 10-26 % used in drawing process of high carbon steel wires large single drafts cause the increase of their strength properties by deterioration of their plasticity properties. It was demonstrated that the increase of strength properties in wires drawn with larger single drafts is related to the occurrence of higher non-dilatational strain, which cause additional work hardening of material. The theoretical-experimental analysis of drawing of high carbon steel wires enabled evaluation of optimal value of single drafts by which it can be used relatively the most advantageous useful properties of wires. Obtained research results can be applied while designing the production process of high carbon steel wires.

scholarly journals Residual Stress Determination in the Cementite and Ferrite Phases of High Carbon Steel

1999 ◽  
Vol 33 (1-4) ◽  
pp. 187-206 ◽  
Author(s):  
P. Van Houtte ◽  
K. Van Acker ◽  
J. Root
Keyword(s):  
Residual Stress ◽  
Carbon Steel ◽  
Neutron Diffraction ◽  
High Carbon Steel ◽  
Axial Direction ◽  
Wire Drawing ◽  
X Ray Diffraction ◽  
High Carbon ◽  
X Ray ◽  
Total Phase

The paper describes a study of the residual stress and the texture in cold drawn wires of pearlitic high carbon steel. Total true strains in wire drawing ranged from 1.96 to 2.59. Such material consists of a ferrite and a cementite phase, both in lamellar form. First, a discussion is given as to the various types of residual stresses which can be expected in such a material (macrostresses, grain microstresses, phase microstresses and their components). Next the measurements which have been carried out are described: neutron diffraction measurements on both cementite and ferrite phases in the bulk of the wires, and X-ray diffraction measurements on the ferrite phase at the surface. Neutron diffraction led to the average texture and the average phase microstresses in the axial direction in both the ferrite and the cementite phases. X-ray diffraction led to the total phase stress at the surface of the ferrite. By combining both results, it turned out to be possible to determine the macrostress at the surface of the wires and the total phase stress in the cementite as well. Additional measurements, performed after chemical thinning of the wires, finally led to some information about the stress gradients.

Development of Wet Wire Drawing Machine and Pass Schedule With Ultra High Speed for High Carbon Steel Wire

2007 ◽  
Author(s):  
S. K. Lee ◽  
B. M. Kim ◽  
W. S. Ko
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
Drawing Machine ◽  
High Carbon ◽  
Wire Temperature ◽  
Drawing Speed

High speed wet wire drawing has become very common for the production of fine high-carbon steel wire (up to 0.70wt%C) because of the increase in customer demand and production rates in real industrial fields. Although the wet wire drawing process is performed at a high speed usually above 1000m/min, greater speed is required to improve productivity. However, in the high-carbon steel wire drawing process, the wire temperature rises greatly as the drawing speed increases. The excessive temperature rise makes the wire more brittle and finally leads to wire breakage. Therefore, the control of wire temperature is very important. In this study, the variations in wire temperature during the high speed wet wire drawing process were investigated. A multi-stage wet wire drawing process with 21 passes, which is used to produce steel wire, was redesigned by considering the increase in temperature. In order to apply the redesigned pass, a new wet wire drawing machine was developed. Through a wet wire drawing experiment with the new drawing machine and the redesigned pass, it was possible to increase the maximum final drawing speed to 2000m/min without the deterioration of the qualities of drawn wire.

scholarly journals Ultra-fine high-carbon steel wire drawing with ultrasonic vibration

2019 ◽  
Vol 531 ◽  
pp. 012027
Author(s):  
Hengqiang Cao ◽  
Xiaobiao Shan ◽  
Shen Liu ◽  
Yongjun Shi ◽  
Tao Xie
Keyword(s):  
Carbon Steel ◽  
Ultrasonic Vibration ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
High Carbon

scholarly journals Selected Problems from the High-Carbon Steel Wire Drawing Theory and Technology

2014 ◽  
Vol 59 (2) ◽  
pp. 527-535 ◽  
Author(s):  
Z. Muskalski
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Hydrodynamic Lubrication ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
High Carbon ◽  
Software Application ◽  
Multi Stage ◽  
Lubrication Conditions

Abstract Use of computer programs based on finite element methods for simulations of plastic working processes allows for their wider analysis. The theoretical studies presented in the paper, carried out using Drawing 2D, a specialized software application for modelling of the multi-stage drawing process, and their experimental verification have enabled a comprehensive analysis of many problems related to high-carbon steel wire drawing to be made, such as: drawing under hydrodynamic lubrication conditions, drawing with a change in the deformation direction, drawing with small final reductions, and high-speed drawing.

Ductility Improvement of High Carbon Steel Wire by Alternate Wire Drawing

2016 ◽  
Vol 716 ◽  
pp. 22-31 ◽  
Author(s):  
Hidetoshi Nagashima ◽  
Kazunari Yoshida
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Equivalent Strain ◽  
Wire Surface ◽  
High Carbon ◽  
Total Reduction ◽  
Steel Wires ◽  
Drawing Method

High carbon steel wires, due to their high mechanical strength and high fatigue characteristics, have been widely used in industrial products such as bridge cables and steel cords for tires. To produce wires that match the requirements for those purposes, wire drawing process is used. However, after the processing, tensile strength of the wires increases, but ductility decreases due to the shear deformation near the wire surface. In this study, we examined ductility improvement methods of high carbon steel wires and as a solution we suggest a method of processing called “alternate wire drawing”. The next step was to determine the usefulness of alternate wire drawing for increasing the ductility of the wires. Firstly we studied the total equivalent strain and the change of the shape of elements for each drawn wire by FEM analysis before testing. It was determined that in the case of alternate drawn wire the deformation of the elements was small also alternate wire drawing method is inhibiting the increase of total equivalent strain on wire surface. In case of tensile testing of drawn wire, we examined the mechanical properties of each wire drawing method and compared them. By doing this test we understood that in the case of alternate drawing there is a significant increase of breaking strain and drawing rate. We also have done torsion test to confirm the ductility of conventional wire drawing and alternate wire drawing. In case of conventional wire drawing method (Total reduction 91.7%) delamination appeared, however alternate wire drawing method (Total reduction 91.7%) there was no delamination. In addition, in case of total reduction of 97.2%, alternate drawn wire increases 20% more its torsion characteristics, than conventional drawn wire. And we also studied the changes of the crystal grain of drawn wire by EBSD (Electron Back Scatter Diffraction Patterns). We found out that grain size was shrunk by conventional drawn wire due to share deformation and for alternate drawn wire we confirmed that it was possible to inhibit the grain shrinking by 15% compared to the conventional drawing method. As a conclusion we found out that, by using alternate wire drawing method it is possible to improve the ductility of high carbon steel wires with the high tensile strength.

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