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.

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.

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.

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 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.

Improvement of Ductility with Maintaining Strength of Drawn High Carbon Steel Wire

2016 ◽  
Vol 716 ◽  
pp. 32-38 ◽  
Author(s):  
Shiori Gondo ◽  
Shinsuke Suzuki ◽  
Motoo Asakawa ◽  
Kosuke Takemoto ◽  
Kenichi Tashima ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
Steel Wire ◽  
High Carbon Steel ◽  
High Carbon ◽  
Maximum Value ◽  
Pass Schedule ◽  
The Wire ◽  
Reduction Of Area ◽  
Strength And Ductility

The effect of areal reduction for one pass on mechanical properties of high carbon steel wire drawn using wet-type non-slip drawing machine was investigated. The wires of 0.443 mm in diameter with carbon 0.98% were drawn to 0.06 mm in diameter by reducing the sectional area of the wire by 14 % and 27 %. Tensile strength increased monotonically with increasing drawing strain and there were very few differences of tensile strength by pass schedule. Elongation had the minimum value at 2.5 of drawing strain and reduction of area also had the maximum value at 1.2 of drawing strain. Elongation and reduction of area were improved in the region of drawing strain more than about 3 by decreasing areal reduction for one pass. Therefore, the wire can be drawn with maintaining strength and ductility under small areal reduction for one pass at latter pass regardless of areal reduction at former passes.

The Influence of Die Approach and Bearing Part of Die on Mechanical-Technological Properties of High Carbon Steel Wires / Wpływ Części Roboczej I Kalibrującej Ciągadła Na Własności Mechaniczno-Technologiczne Drutów Ze Stali Wysokowęglowej

2012 ◽  
Vol 57 (4) ◽  
pp. 1105-1110 ◽  
Author(s):  
J. Adamczyk ◽  
M. Suliga ◽  
J.W. Pilarczyk ◽  
M. Burdek
Keyword(s):  
Carbon Steel ◽  
High Carbon Steel ◽  
Effective Strain ◽  
Total Elongation ◽  
Strength Properties ◽  
Drawing Process ◽  
Technological Properties ◽  
High Carbon ◽  
Steel Wires ◽  
Bearing Part

In this work the influence of the die approach and bearing part of die on mechanical-technological properties of high carbon steel wires has been assessed. The drawing process of φ5.5 mm wires to the final wire of φ2.9 mm was conducted in 6 passes, by means of a multi-die drawing machine Koch type. The drawing speeds in the last passes were: 7 m/s. For wires drawn according to four variants the investigation of mechanical-technological properties has been carried out, in which yield strength, tensile strength, uniform and total elongation, reduction of area, the number of twists and the number of bends were determined. On the basis of numerical analyses wire drawing process, the influence of geometry of die on redundant strain and effective strain has been determined. The investigations have shown the essential influence of geometry of die on mechanical-technological properties of high carbon steel wires. It has been shown that the increase of strength properties in wires drawn with high die angle is related to the occurrence in their bigger effective strain.

The High Speed Wire Drawing Process of Steel Wires under Fluid Frictions Conditions

2016 ◽  
Vol 716 ◽  
pp. 76-84
Author(s):  
Maciej Suliga
Keyword(s):  
High Speed ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
The Finite Element Method ◽  
Wire Surface ◽  
Steel Wires ◽  
Drawing Speed ◽  
The Wire ◽  
Multiparameter Analysis

The essential purpose of the work was to determine the phenomena that occur in multipass wire drawing process of high carbon steel wires with high speed in hydrodynamic dies and to assess their influence on moulding the wire properties after the drawing process. The multiparameter analysis of the issues has involved the theoretical dissection of the phenomena arising in high speed wire drawing process in hydrodynamic dies with the usage of the finite element method supported by the experimental multipass drawing process in industrial conditions. On the basis of numerical analysis the influence of drawing speed on wire temperature was estimated. For final wires the investigation of mechanical properties, topogrhaphy of wire surface, the amount of lubricant on the wire surface, the pressure of lubricant in hydrodynamic dies were determined.

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.

Sign in / Sign up

Export Citation Format

Share Document