US3683662A - Rolling method for wire and other rod-shaped rolling stock - Google Patents

Rolling method for wire and other rod-shaped rolling stock Download PDF

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Publication number
US3683662A
US3683662A US50597A US3683662DA US3683662A US 3683662 A US3683662 A US 3683662A US 50597 A US50597 A US 50597A US 3683662D A US3683662D A US 3683662DA US 3683662 A US3683662 A US 3683662A
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Prior art keywords
passes
rolling
roller
oval
section
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Expired - Lifetime
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US50597A
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English (en)
Inventor
Walter Dechene
Herbert Rothe
Fritz Salmen
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Krupp Stahl AG
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Stahlwerke Suedwestfalen AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process

Definitions

  • the present invention relates to a rolling method for producing wire and other rod-shaped metallic rolling stock, especially with high exit speeds in excess of 20 millimeters per second and small final dimensions below 100 m It is an object of the present invention to provide a new rolling method which will make it possible in an economic and operation-safe manner to produce metallic rod-shaped rolling stock having a high surface quality, precision as to dimensions, in other words, low tolerance, and a high hourly output while securing a thin cross section.
  • high grade steel and similar alloys includes steels and alloys which, due to their alloy content, have high strength at the temperatures of deformation.
  • FIG. 1 diagrammatically illustrates in plan view a rolling frame according to the invention.
  • FIG. 2 illustrates the calibrating diagram pertaining thereto.
  • the rolling stock is either twisted from stand to stand or is formed in alternately horizontal and vertical stands to smaller surfaces.
  • the purpose of this way of operation consists in obtaining also large decreases in the surfaces (from 10 to 30 percent) by large decreases in the height (20 percent) therefore twisting, upwardly placing of the oval in square or round caliber.
  • auxiliary devices such as guiding means, electric measuring and control means, for instance, for loop formers, have to be increased and improved with regard to number and quality in such installatrons.
  • the rolling method for producing wire or other rodshaped rolling stock of high grade steel and other high grade metallic substances is carried out while employing rolling sets the pressure of which is alternately effected in directions offset by 90.
  • oval calibers on one handand upsetters and round calibers on the other hand are to be employed.
  • a plurality of non-offset oval passes are followed by a plurality of upsetting and round passes which, while not being offset with regard to each other, are offset relative to said oval passes by
  • the major number of these oval passes on one hand and of the upsetting and round passes on the other hand will henceforth be termed group.
  • preferably round material such as wire and round steel will be processed.
  • cross sections can be produced which approximate round cross sections.
  • polygonal steels such as twelve-edge steels, octagonal steels and hexagonal steels which have an approximately round cross section and, as is well known to the expert in the field, with otherwise unchanged working operation can be produced by exchanging the rollers during the last pass by changing the round cross section.
  • a manufacturing plan may provide a plurality of each group so that per each oval pass group there will be obtained one upsetting or round pass group.
  • the number of the passes pertaining to a group is three.
  • the total decrease in the surface of the rolling stock in each pass or caliber group should expediently amount from 25 to 45 percent of the starting cross section prior to the respective group. This decrease in surface is more or less uniformly distributed over the individual passes of the group.
  • the reduction in surface in the individual pass should be below 15 percent and with material which is difficult to transform should be below 12 percent of the starting cross section prior to the individual caliber.
  • a device according to the invention has been found particularly suitable according to which the roller pairs of one group are arranged with parallel roller'axles in a common stand. Furthermore, they should have a common motor with a predetermined speed ratio as drive.
  • the problem to be solved consists in rolling material of the quality Cq 35 (Material No. 1.1 172), high speed working steel (Material No. 1.3343) and heat-resistant and corrosion-resistant valve cone steel (Material No. 1.4873) from a 10.00 millimeter starting diameter to a 5.2 millimeter wire.
  • An eight-stand finishing unit of a wire rolling mill is available for the rolling operation.
  • the said unit comprises eight individually controlled horizontal stands while the rolling stock is twisted between the individual stands. There is obtained a medium surface decrease per stand of approximately 14 percent.
  • the exit speed for the rolling stock which could, with non-alloyed material be at 30 meters per second, had to be reduced for the higher alloyed material to 24 or 20 meters per second.
  • the time exploitation factor during any rolling hour during which all three qualities had to be rolled was at 50 percent.
  • the material output reached 81 percent.
  • FIG. 1 the roller stands are arranged in a horizontal-vertical arrangement.
  • the horizontal stands are designated with the reference numeral 1 and the vertical stands are designated with the reference number 3.
  • Each stand has three adjustable pairs of rollers which in the horizontal stand are designated with the reference numeral 2 and in the vertical stand are designated with the reference numeral 4.
  • the drive for these roller trains is effected by four motors 7.
  • Each motor through a transmission 6 and through the intervention of wellknown driving spindles, drives three pairs of rollers 2, 4.
  • a slack section 5 Scholle
  • FIG. 2 illustrates in conformity therewith the calibrating diagram for a four-stand wire finishing unit from 10 millimeters diameter to 5 millimeters diameter.
  • the shape sequence is multiple-oval and multiple upset/round while each oval profile is formed in three passes 11, 12, 13; 31, 32, 33, and the round profile through the intervention of pre-upsetters is likewise formed in three passes 21, 22, 23; 41, 42, 43.
  • the oval groups 11, 12, 13; 31, 32, 33 as well as the upsetter/round groups 21, 22, 23; 41, 42, 43 are likewise associated with a stand.
  • rolling takes place in fixedly predetermined transmission stages (light pull) whereas between these two profile groups the rolling is effected with a slack portion (pull compensation).
  • the change-over from one wire dimension to another wire dimension is made possible by inserting, transferring and withdrawing of roller pairs.
  • the last two stands are operated with six passes 31-43.
  • the last two stands are operated only with two passes (31 and 6.5 finish caliber) as is the case with individual drive.
  • the different surface staging from oval to round stand can be adjusted with the con trollable direct current motors.
  • the exit speed from the last one (43) amounts to 45 meters per second. It is retained without any changes regardless of whether a non-alloyed cold upset steel (Cq 35, Material No. 1.1 I72), a high speed working steel (Material No. 1.3343) or a heat and corrosion-resistant valve cone steel (Material No. 1.4873) is being rolled.
  • the number of the driving motors with electric control and setting devices is reduced (from eight to four). 7
  • the rolling speed and thus the hourly output of the train is increased by more than 40 percent.
  • the extent of the capital investment and output reducing test rolling operations are clearly reduced and occur only with important changes in the dimensions.
  • the surface quality is increased, waste and collection of rolling material ll selection is reduced.
  • the working operations for simultaneously high quality of the rolling stock and an economic operation can precisely be repeated even when changing to different materials and/or dimensions.
  • a method of making wire or other rod-shaped rolling stock of circular and nearly circular cross-section, especially of high grade steel and other high grade metallic substances which includes the step'of carrying out a plurality of successive oval passes not offset with regard to each other, and subsequently at 90 offset to said oval passes carrying out a plurality of compression or round passes not offset with regard to each other.
  • each the plurality of oval passes and the plurality of compression or round passes form a caliber group, and in which by means of each caliber group in toto the surface of the material being processed is reduced by from 25 to 45 percent while said surface reduction is being distributed over the individual passes of the same caliber group.
  • a roller train for making wire and other rodshaped rolling stock of circular and nearly circular cross-section, especially of high grade steel and other high grade metallic substances which includes: a plurality of roller stands respectively arranged in series in spaced relationship to each other and comprising horizontal and vertical roller stands alternating with each other, a plurality of groups of rollers respectively adjustably supported by said roller stands, each of said groups including a plurality of roller pairs having parallel roller axes and being arranged in a common stand, and motor means drivingly connected to said rollers.
  • roller train according to claim 7 in which the roller pairs of each group are drivingly connected to motor means common thereto.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US50597A 1969-07-01 1970-06-29 Rolling method for wire and other rod-shaped rolling stock Expired - Lifetime US3683662A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1933273 1969-07-01
US5059770A 1970-06-29 1970-06-29

Publications (1)

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US3683662A true US3683662A (en) 1972-08-15

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Application Number Title Priority Date Filing Date
US50597A Expired - Lifetime US3683662A (en) 1969-07-01 1970-06-29 Rolling method for wire and other rod-shaped rolling stock

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US (1) US3683662A (enExample)
AT (1) AT302221B (enExample)
BE (1) BE752707A (enExample)
CA (1) CA953952A (enExample)
CH (1) CH519356A (enExample)
DE (1) DE1933273B1 (enExample)
FR (1) FR2053990A5 (enExample)
GB (1) GB1320922A (enExample)
LU (1) LU61219A1 (enExample)
NL (1) NL7009630A (enExample)
SE (1) SE372432B (enExample)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007617A (en) * 1974-09-24 1977-02-15 Ab Metalform Method of rolling metal blanks
US5123269A (en) * 1989-12-09 1992-06-23 Sms Schloemann-Siemag Aktiengesellschaft Cantilevered slit-strand rolling mill with roll changing device
US5325697A (en) * 1991-05-06 1994-07-05 Morgan Construction Company Method and apparatus for continuously hot rolling ferrous long products
US5516408A (en) * 1993-04-19 1996-05-14 Magma Copper Company Process for making copper wire
US5542995A (en) * 1992-02-19 1996-08-06 Reilly; Robert Method of making steel strapping and strip and strapping and strip
US5679232A (en) * 1993-04-19 1997-10-21 Electrocopper Products Limited Process for making wire
US5830583A (en) * 1993-04-19 1998-11-03 Clouser; Sidney J. Copper wire
US5862699A (en) * 1996-02-12 1999-01-26 Danieli & C. Officine Meccaniche Spa Method for the rolling of long products and rolling line which performs that method
US6123788A (en) * 1993-04-19 2000-09-26 Electrocopper Products Limited Copper wire and process for making copper wire
US20050015978A1 (en) * 2003-07-21 2005-01-27 Ryan Andersen Method and apparatus for producing stranded aluminum cables
US20110027057A1 (en) * 2008-03-27 2011-02-03 Numalliance Sas Supply station

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070893A (en) * 1976-12-23 1978-01-31 Nippon Steel Corporation Finish rolling method for production of round cross-sectional shape materials
JPS5478738U (enExample) * 1977-11-14 1979-06-04

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369730A (en) * 1942-06-12 1945-02-20 Gustaf L Fisk Method of rolling metal bars
US3566657A (en) * 1967-11-30 1971-03-02 Moeller & Neumann Verwalt Ges Continuous rolling mill train for rolling bar stock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369730A (en) * 1942-06-12 1945-02-20 Gustaf L Fisk Method of rolling metal bars
US3566657A (en) * 1967-11-30 1971-03-02 Moeller & Neumann Verwalt Ges Continuous rolling mill train for rolling bar stock

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007617A (en) * 1974-09-24 1977-02-15 Ab Metalform Method of rolling metal blanks
US5123269A (en) * 1989-12-09 1992-06-23 Sms Schloemann-Siemag Aktiengesellschaft Cantilevered slit-strand rolling mill with roll changing device
US5325697A (en) * 1991-05-06 1994-07-05 Morgan Construction Company Method and apparatus for continuously hot rolling ferrous long products
US5542995A (en) * 1992-02-19 1996-08-06 Reilly; Robert Method of making steel strapping and strip and strapping and strip
US5516408A (en) * 1993-04-19 1996-05-14 Magma Copper Company Process for making copper wire
US5679232A (en) * 1993-04-19 1997-10-21 Electrocopper Products Limited Process for making wire
US5830583A (en) * 1993-04-19 1998-11-03 Clouser; Sidney J. Copper wire
US6123788A (en) * 1993-04-19 2000-09-26 Electrocopper Products Limited Copper wire and process for making copper wire
US5862699A (en) * 1996-02-12 1999-01-26 Danieli & C. Officine Meccaniche Spa Method for the rolling of long products and rolling line which performs that method
US20050015978A1 (en) * 2003-07-21 2005-01-27 Ryan Andersen Method and apparatus for producing stranded aluminum cables
US20110027057A1 (en) * 2008-03-27 2011-02-03 Numalliance Sas Supply station
US8783084B2 (en) * 2008-03-27 2014-07-22 Numalliance Sas Supply station

Also Published As

Publication number Publication date
SE372432B (enExample) 1974-12-23
BE752707A (fr) 1970-12-01
FR2053990A5 (enExample) 1971-04-16
DE1933273B1 (de) 1971-01-28
CA953952A (en) 1974-09-03
LU61219A1 (enExample) 1970-09-09
CH519356A (de) 1972-02-29
AT302221B (de) 1972-10-10
GB1320922A (en) 1973-06-20
NL7009630A (enExample) 1971-01-05

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