US3605469A - Method and apparatus for improving the properties of steel rope - Google Patents
Method and apparatus for improving the properties of steel rope Download PDFInfo
- Publication number
- US3605469A US3605469A US761704A US3605469DA US3605469A US 3605469 A US3605469 A US 3605469A US 761704 A US761704 A US 761704A US 3605469D A US3605469D A US 3605469DA US 3605469 A US3605469 A US 3605469A
- Authority
- US
- United States
- Prior art keywords
- rope
- heating
- tension
- heating means
- take
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract description 19
- 229910000831 Steel Inorganic materials 0.000 title description 22
- 239000010959 steel Substances 0.000 title description 22
- 238000010438 heat treatment Methods 0.000 abstract description 57
- 238000001816 cooling Methods 0.000 abstract description 18
- 230000006698 induction Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/12—Making ropes or cables from special materials or of particular form of low twist or low tension by processes comprising setting or straightening treatments
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2021—Strands characterised by their longitudinal shape
Definitions
- the steel rope is subjected to a force of traction which is less than the tension required to break the rope, and while under this tension the rope is passed through a heating zone so that a given degree of stretching will be imparted to the rope.
- a force of traction which is less than the tension required to break the rope
- the rope Prior to reaching the heating zone, where a suitable heating means is located, the rope is directed through an undulatory path by an adjustable roller means causing the rope to be sequentially directed along opposed curves, so that in this way prior to reaching the heating means the rope is stressed and preliminarily heated to a given degree.
- the tension is applied to the rope by winding the latter onto a drum which pulls the rope through the undulatory path and the heating means, and between the heating means and the take-up drum the rope is cooled either by the ambient atmosphere or through forced cooling BACKGROUND OF THE INVENTION
- the present invention relates to steel rope.
- the present invention relates to a steel rope composed of a plurality of wires which are united together, as by being twisted, for example, so as to form a steel cable.
- the present invention relates to the improvement of the properties of such steel rope during the manufacture thereof.
- Steel rope or cable are required in many applications to be used under conditions where therope is subjected to considerable tension.
- the rope is subjected to considerable tension, as is well known in many different types of constructions which are widely used.
- conventional steel rope of this type does not have an elastic limit which is as high as might be desired and it is not capable of elongating or stretching to the desired degree before it will break. Moreover, conventional steel rope of this type stretches undesirably when subjected to relatively small loads. Moreover, conventional steel cable is not as straight as desired so that it cannot easily be situated within sheaths. In addition, the various wires which make up the rope do not coact together in the best possible manner since some of the wires become loose from the others.
- the steel rope is placed under tension by a suitable traction means while it is drawn through a heating zone of predetermined length with the speed of movement of the rope controlled so that it will be heated for a given period of time, and then the rope is subsequently cooled.
- a suitable traction means Just prior to passage of the rope through the heating means it is passed through a series of adjusting rollers forming an adjusting roller means which provide an undulatory path through which the rope is drawn so that it is sequentially curved in opposed directions thus stressing the rope and heating the latter to a given degree before it is heated by the heating means.
- rollers of the roller means are situated so that their axes can be displaced perpendicularly to the rope, thus enabling the rollers to be adjustabl'y situated at a location most suitable to the particular diameter of the rope which is treated.
- the rope is subjected to a high degree of tension which, however, is never higher than of the tension at which the rope will break.
- the rope is subjected to tension by being wound onto a traction drum of relatively large diameter forming a reel onto which the cable is wound, so that in this way a take-up means is provided for transporting the rope and maintaining it under tension.
- the drum which forms the take-up or traction means is of a relatively large diameter on the order of 200 times the diameter of the rope in the case where the latter is formed from seven wires. In the case where the rope is in the form of a cable formed from nineteen wires, the diameter of the take-up drum will be on the order of times the diameter of the wire rope. The diameter of the take-up drum or reel must be large enough so that its curvature will have no influence on the treated rope.
- a heating means is situated between the adjustable roller means and the take-up means to form the heating zone through which the rope is drawn. This heating means will elevate the temperature of the rope above the extent to which it has previously been heated by being drawn through the undulatory path provided by the adjustable roller means.
- the heating means provides for the rope a temperature slightly below that of the critical point of the iron-carbon diagram, this temperature being approximately between 250 and 350 C.
- this temperature being approximately between 250 and 350 C.
- the particular. temperature to which the rope is heated by the heating means will vary in general according to the composition of the steel used in the rope.
- the heating can be brought about by any suitable means.
- heating by induction is used, the rope being passed through the interior of suitable coils which have the required number of turns and providing a field of sufiicient intensity and with sufiicient flux to achieve the required temperature in the rope according to the properties of the rope, such as its size and the like, and according to the speed with which the rope is moved through the induction heater.
- the heating may be brought about in other ways as, for example, by the direct action of burners or by the indirect action of heating a suitable tube or plate which surrounds or is located adjacent the path along which the rope travels while being under traction. Heating may also be produced by the Joule effect, by causing a current to pass through the rope itself by means of suitable brushes which engage the rope and are located in a suitable electrical circuit, or by any other method or means having a positive heating effect to produce the desired temperature in the rope while it is tensioned.
- FIG. 1 is a schematic representation of the method and apparatus of the invention.
- FIG. .2. is a fragmentary perspective detail of the adjustable roller means which provides the undulatory path for the rope.
- an adjustable roller means 1 forming a zone in which the rope 3 is stressed while moving along an undulatory path.
- This undulatory path is determined by a series of adjustable rollers 2 guided in suitable ways for movement perpendicularly to the rope 3 and capable I of being adjusted by rotation of the screws 4, as schematically illustrated in FIG. 2.
- the rollers 2 on one side of the rope may have stationary axes of rotation While the rollers 2 on the other side can be moved to predetermined positions in the gaps between the remaining rollers, as indicated in FIG. 2.
- the screws 4 can be turned by any suitable tools.
- the series of rollers may include one set whose axes are parallel to each other and perpendicular to the axes of the subsequent set such as the set shown at the left of FIG. 2.
- the rope is compelled to move along an undulatory path providing sequential curving of the rope in opposed directions so that the rope is not only under traction but also it is stressed by the sequential opposed curves so that in addition to being stressed the rope is preliminarily heated to a given degree.
- the adjustment of the roller means 1 will be according to the diameter and characteristics of the rope 3.
- a take-up means 5 in the form of a drum or reel which is rotated through any suitable drive for pulling the rope through the adjustable roller means 1.
- This drum or reel 5 has a relatively large diameter as compared with the diameter of the rope, as set forth above.
- the take-up means formed by the drum or reel 5 maintains the rope under continuous tension while transporting the rope through the roller means 1 to the take-up means 5. In this way it is possible to stretch the rope at the section thereof situated between the adjustable roller means 1 and the take-up means 5.
- the diameter of the drum is on the order of 200 100 times the diameter of the rope according to the increase in the length of the latter and the number of Wires of which the rope is composed.
- an elongated heating means 6 defining a heating zone through which the rope, while under traction, is transported at a given speed, the heating achieved at the heating zone being sufficient to provide a predetermined stretch in the rope as it is drawn through .the heating zone defined by the heating means 6.
- an induction heater for heating the rope by drawing the latter through suitable electrical coils.
- cooling zone 7 Situated between the heating means 6 and the take-up means 5 is a cooling zone 7 where cooling may take place in the ambient atmosphere, although, as was pointed out above, if necessary the cooling can be forced positive cooling as by circulation of a suitable fluid such as chilled air or water in engagement with the rope.
- the characteristics of the heating zone, and to a lesser extent of the cooling zone, depend, with respect to their length, temperature, and other details, on various factors such as the speed of movement of the rope, the composition thereof, and the tension to which the rope is subjected by the take-up means 5 during pulling of the rope through the heating and cooling zones as well as initially through the adjusting roller means 1.
- the rope or cable of the invention is in a perfectly straight condition as a result of the treatment thereof with the method and apparatus of the invention, so that laying of the rope in sheaths is greatly facilitated.
- adjustable roller means for guiding the rope along an undulatory path, take-up means for taking upthe rope and pulling the latter through said roller means to place the rope under traction while it is stressed during pulling through the roller means and heated to a given degree, said adjustable roller means forming the sole means for placing the rope under traction while the rope is pulled by said take-up means, and heating means located between said roller means and take-up means for heating the rope to a predetermined temperature higher than that which is achieved at the roller means, so that the rope is under traction while being heated by said heating means.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES345790A ES345790A1 (es) | 1967-09-23 | 1967-09-23 | Perfeccionamientos en la fabricacion de cordon o cable de acero constituido por varios alambres cableados entre si, y de ulterior empleo en tension. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3605469A true US3605469A (en) | 1971-09-20 |
Family
ID=8446420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US761704A Expired - Lifetime US3605469A (en) | 1967-09-23 | 1968-09-23 | Method and apparatus for improving the properties of steel rope |
Country Status (6)
Country | Link |
---|---|
US (1) | US3605469A (es) |
JP (1) | JPS5210939B1 (es) |
BE (1) | BE721212A (es) |
ES (1) | ES345790A1 (es) |
FR (1) | FR1584430A (es) |
GB (1) | GB1242244A (es) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847002A (en) * | 1972-06-13 | 1974-11-12 | Suzuke Metal Ind Co Ltd | Method of producing steel wire and strand for pre-stressed concrete construction |
US4026334A (en) * | 1975-10-10 | 1977-05-31 | Monsanto Company | Method of continuously processing metal cord |
US4087295A (en) * | 1972-02-25 | 1978-05-02 | Monsanto Company | Mechanical and thermal treatment of steel wire |
US4106957A (en) * | 1971-09-02 | 1978-08-15 | N. V. Bekaert S.A. | Reinforcements |
US4481996A (en) * | 1981-02-06 | 1984-11-13 | N. V. Bekaert S.A. | Fatigue resistant cables |
DE3405693A1 (de) * | 1984-02-17 | 1985-08-22 | Daimler-Benz Ag, 7000 Stuttgart | Verfahren und vorrichtung zur herstellung von litzen fuer bowdenzuege |
US20040020021A1 (en) * | 2002-08-02 | 2004-02-05 | Rockford Manufacturing Group, Inc. | Quick set up wire descaler |
US6732562B2 (en) | 2000-05-09 | 2004-05-11 | University Of Central Florida | Apparatus and method for drawing continuous fiber |
US7268063B1 (en) | 2004-06-01 | 2007-09-11 | University Of Central Florida | Process for fabricating semiconductor component |
US7419887B1 (en) | 2004-07-26 | 2008-09-02 | Quick Nathaniel R | Laser assisted nano deposition |
US20100025694A1 (en) * | 2004-02-19 | 2010-02-04 | Quick Nathaniel R | Apparatus and method for transformation of substrate |
US7811914B1 (en) | 2006-04-20 | 2010-10-12 | Quick Nathaniel R | Apparatus and method for increasing thermal conductivity of a substrate |
US20110056542A1 (en) * | 2008-12-02 | 2011-03-10 | University of Central Florida, State University of the State of Florida | Energy conversion device |
US7951632B1 (en) | 2005-01-26 | 2011-05-31 | University Of Central Florida | Optical device and method of making |
CN102140767A (zh) * | 2011-03-14 | 2011-08-03 | 湖北福星科技股份有限公司 | 子午轮胎钢帘线弓形校直器 |
US8067303B1 (en) | 2006-09-12 | 2011-11-29 | Partial Assignment University of Central Florida | Solid state energy conversion device |
US8617669B1 (en) | 2006-04-20 | 2013-12-31 | Partial Assignment to University of Central Florida | Laser formation of graphene |
US8617965B1 (en) | 2004-02-19 | 2013-12-31 | Partial Assignment to University of Central Florida | Apparatus and method of forming high crystalline quality layer |
US8674373B2 (en) | 2007-09-18 | 2014-03-18 | University Of Central Florida | Solid state gas dissociating device, solid state sensor, and solid state transformer |
US9059079B1 (en) | 2012-09-26 | 2015-06-16 | Ut-Battelle, Llc | Processing of insulators and semiconductors |
CN104963225A (zh) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | 多根钢丝感应加热水冷却生产线 |
CN105195445A (zh) * | 2015-09-25 | 2015-12-30 | 吉林省送变电工程公司 | 牵引钢丝绳无动力除尘装置 |
US9601641B1 (en) | 2013-12-10 | 2017-03-21 | AppliCote Associates, LLC | Ultra-high pressure doping of materials |
US9620667B1 (en) | 2013-12-10 | 2017-04-11 | AppliCote Associates LLC | Thermal doping of materials |
US20210001390A1 (en) * | 2018-04-12 | 2021-01-07 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Stranding machine |
-
1967
- 1967-09-23 ES ES345790A patent/ES345790A1/es not_active Expired
-
1968
- 1968-09-16 FR FR1584430D patent/FR1584430A/fr not_active Expired
- 1968-09-20 GB GB44892/68A patent/GB1242244A/en not_active Expired
- 1968-09-20 BE BE721212D patent/BE721212A/xx not_active IP Right Cessation
- 1968-09-23 US US761704A patent/US3605469A/en not_active Expired - Lifetime
- 1968-09-24 JP JP43069044A patent/JPS5210939B1/ja active Pending
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106957A (en) * | 1971-09-02 | 1978-08-15 | N. V. Bekaert S.A. | Reinforcements |
US4087295A (en) * | 1972-02-25 | 1978-05-02 | Monsanto Company | Mechanical and thermal treatment of steel wire |
US3847002A (en) * | 1972-06-13 | 1974-11-12 | Suzuke Metal Ind Co Ltd | Method of producing steel wire and strand for pre-stressed concrete construction |
US4026334A (en) * | 1975-10-10 | 1977-05-31 | Monsanto Company | Method of continuously processing metal cord |
US4612792A (en) * | 1981-02-06 | 1986-09-23 | N. V. Bekaert S. A. | Method of manufacturing fatigue resistant cables |
US4481996A (en) * | 1981-02-06 | 1984-11-13 | N. V. Bekaert S.A. | Fatigue resistant cables |
DE3405693A1 (de) * | 1984-02-17 | 1985-08-22 | Daimler-Benz Ag, 7000 Stuttgart | Verfahren und vorrichtung zur herstellung von litzen fuer bowdenzuege |
US7603883B2 (en) | 2000-05-09 | 2009-10-20 | University Of Central Florida | Method of drawing a ceramic |
US6732562B2 (en) | 2000-05-09 | 2004-05-11 | University Of Central Florida | Apparatus and method for drawing continuous fiber |
US20040194526A1 (en) * | 2000-05-09 | 2004-10-07 | University Of Central Florida | Apparatus and method for drawing continuous fiber |
US7013695B2 (en) | 2000-05-09 | 2006-03-21 | Quick Nathaniel R | Method for drawing continuous fiber |
US20060070420A1 (en) * | 2000-05-09 | 2006-04-06 | University Of Central Florida | Method of drawing a composite wire |
US7237422B2 (en) | 2000-05-09 | 2007-07-03 | University Of Central Florida | Method of drawing a composite wire |
US20040020021A1 (en) * | 2002-08-02 | 2004-02-05 | Rockford Manufacturing Group, Inc. | Quick set up wire descaler |
US6694584B1 (en) * | 2002-08-02 | 2004-02-24 | Rockford Manufacturing Group, Inc. | Quick set up wire descaler |
US7897492B2 (en) | 2004-02-19 | 2011-03-01 | Quick Nathaniel R | Apparatus and method for transformation of substrate |
US20100025694A1 (en) * | 2004-02-19 | 2010-02-04 | Quick Nathaniel R | Apparatus and method for transformation of substrate |
US8617965B1 (en) | 2004-02-19 | 2013-12-31 | Partial Assignment to University of Central Florida | Apparatus and method of forming high crystalline quality layer |
US8080836B2 (en) | 2004-06-01 | 2011-12-20 | University Of Central Florida | Embedded semiconductor component |
US7268063B1 (en) | 2004-06-01 | 2007-09-11 | University Of Central Florida | Process for fabricating semiconductor component |
US20090126627A1 (en) * | 2004-07-26 | 2009-05-21 | University Of Central Florida | Laser assisted nano deposition |
US7419887B1 (en) | 2004-07-26 | 2008-09-02 | Quick Nathaniel R | Laser assisted nano deposition |
US8393289B2 (en) | 2004-07-26 | 2013-03-12 | University Of Central Florida | Laser assisted nano deposition |
US20110211249A1 (en) * | 2005-01-26 | 2011-09-01 | University Of Central Florida | Optical device and method of making |
US8912549B2 (en) | 2005-01-26 | 2014-12-16 | University Of Central Florida | Optical device and method of making |
US7951632B1 (en) | 2005-01-26 | 2011-05-31 | University Of Central Florida | Optical device and method of making |
US9064798B2 (en) | 2005-01-26 | 2015-06-23 | University Of Central Florida | Optical device and method of making |
US20110031504A1 (en) * | 2006-04-20 | 2011-02-10 | Quick Nathaniel R | Apparatus and method for increasing thermal conductivity of a substrate |
US7811914B1 (en) | 2006-04-20 | 2010-10-12 | Quick Nathaniel R | Apparatus and method for increasing thermal conductivity of a substrate |
US8617669B1 (en) | 2006-04-20 | 2013-12-31 | Partial Assignment to University of Central Florida | Laser formation of graphene |
US8772061B2 (en) | 2006-09-12 | 2014-07-08 | University Of Central Florida | Process of making a solid state energy conversion device |
US8722451B2 (en) | 2006-09-12 | 2014-05-13 | University Of Central Florida | Solid state energy photovoltaic device |
US8067303B1 (en) | 2006-09-12 | 2011-11-29 | Partial Assignment University of Central Florida | Solid state energy conversion device |
US8674373B2 (en) | 2007-09-18 | 2014-03-18 | University Of Central Florida | Solid state gas dissociating device, solid state sensor, and solid state transformer |
US20110056542A1 (en) * | 2008-12-02 | 2011-03-10 | University of Central Florida, State University of the State of Florida | Energy conversion device |
US8828769B2 (en) | 2008-12-02 | 2014-09-09 | University Of Central Florida | Energy conversion device |
CN102140767A (zh) * | 2011-03-14 | 2011-08-03 | 湖北福星科技股份有限公司 | 子午轮胎钢帘线弓形校直器 |
US9059079B1 (en) | 2012-09-26 | 2015-06-16 | Ut-Battelle, Llc | Processing of insulators and semiconductors |
US9601641B1 (en) | 2013-12-10 | 2017-03-21 | AppliCote Associates, LLC | Ultra-high pressure doping of materials |
US9620667B1 (en) | 2013-12-10 | 2017-04-11 | AppliCote Associates LLC | Thermal doping of materials |
CN104963225A (zh) * | 2015-05-12 | 2015-10-07 | 南通恒新金属工艺科技有限公司 | 多根钢丝感应加热水冷却生产线 |
CN105195445A (zh) * | 2015-09-25 | 2015-12-30 | 吉林省送变电工程公司 | 牵引钢丝绳无动力除尘装置 |
US20210001390A1 (en) * | 2018-04-12 | 2021-01-07 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Stranding machine |
US11946200B2 (en) * | 2018-04-12 | 2024-04-02 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Stranding machine |
Also Published As
Publication number | Publication date |
---|---|
FR1584430A (es) | 1969-12-19 |
JPS5210939B1 (es) | 1977-03-28 |
BE721212A (es) | 1969-03-03 |
GB1242244A (en) | 1971-08-11 |
ES345790A1 (es) | 1968-11-16 |
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