US3540527A - Cooling of rolls and the like - Google Patents

Cooling of rolls and the like Download PDF

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Publication number
US3540527A
US3540527A US707716A US3540527DA US3540527A US 3540527 A US3540527 A US 3540527A US 707716 A US707716 A US 707716A US 3540527D A US3540527D A US 3540527DA US 3540527 A US3540527 A US 3540527A
Authority
US
United States
Prior art keywords
roll
cooling
rolls
groove
grooves
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
Application number
US707716A
Other languages
English (en)
Inventor
Hugh Willmott Grenfell
Jack Michael Moore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Steel Company of Wales Ltd
Original Assignee
Steel Company of Wales Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB4583366A external-priority patent/GB1172373A/en
Application filed by Steel Company of Wales Ltd filed Critical Steel Company of Wales Ltd
Application granted granted Critical
Publication of US3540527A publication Critical patent/US3540527A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally

Definitions

  • Cooling apparatus for a rolling mill roll comprises a cooling member adapted to extend across at least part of the width of the roll, said member having a facecarrying [54] COOLING lous AND THE pad means and a plurality of moves or passageways in said 6 Ch 4 Drank Figs.
  • the arrangement being such that with the member 52] Us, (l 165/: biased so that the pad means contact the roll, cooling liquid 72/20! l'lovlin; within the grooves and passageways is in contact with [51 Int. P285102 the roll surface.
  • the member is preferably arcuate and the pad [50] Field ofSear-ch 72/236, means preferably comprises as plastics material such as nylon Patented Nov. 17, 1970 3,540,527
  • the invention is concerned with rolls as used in the hot or cold rolling of metals and which, in use, eventually become so hot that the surface of the rolls breaks up.
  • the invention is particularly concerned with the cooling of rolls, it is to be understood that the invention is equally applicable to the cooling or lubrication of any continuously or intermittently moving surface.
  • apparatus for cooling and/or lubricating a roll or like device which apparatus comprises a cooling member adapted to extend across at least part of the width of the roll, means for maintaining said member in contact with said roll, pad means carried by said member and adapted to abut the rolled surface, a plurality of grooves or passageways providing in said pad means and if desired in said member, and means for providing a flow of fluid within said groove 0r passageway, said grooves or passageways being open in the surface of the pad means adapted to abut the roll, the arrangement being such that in operation fluid flowing within said grooves or passageways is in contact with the surface of said roll.
  • the cooling member may extend the complete width of the roll and may comprise a longitudinal arcuate member.
  • the means for maintaining the cooling member in contact with the roll surface may be a spring which urges themember into abutting contact with the roll.
  • the pad means for the roll may be formed of a synthetic plastics material such for example as Nylon 66.
  • the grooves in the abutting surface of the cooling member and the pad means carried thereby may comprise a plurality of longitudinally extending grooves disposed in rows and separated by pad spacers which are adapted to abut the surface of the roll.
  • Each row may comprise a plurality of grooves and each groove may be defined about its periphery by a pad spacer and may be provided with a fluid inlet and a fluid outlet the arrangement being such that the fluid enters said member via an inlet conduit at one end and passes through a groove to the other end and out of the member via an outlet conduit.
  • the grooves may be connected in parallel" between an inlet conduit and an outlet conduit.
  • the apparatus of the present invention is particularly adapted to act as a mechanical scraper, and additional scraper or wiper blades extending longitudinally of the member may be provided in each groove or passageway intermediate the longitudinal spacer pads defining the groove.
  • the blade or blades act to scrape any steam film from the surface which may form during cooling by a flow of water within the grooves. This feature of the invention of scraped heat transfer has been found to give far higher cooling rates.
  • FIG. 1 is a perspective view of the cooling apparatus of the present invention.
  • FIG. 2 is a diagrammatic section through a work roll and cooling rig in accordance with the present invention.
  • FIG. 3 is a face view of a cooling member of the apparatus in accordance with the present invention.
  • the rolling mill (see FIG. 2) comprises a pair of work rolls 10 and 10 adapted to act upon a strip 1!. passing the nip of rolls 10, 10' in the direction indicated.
  • the work rolls 10, iii are each loaded by a backup roll 12.
  • the support 13 carries upwardly of bracket 14, a pair of spaced header brackets disposed at or towards the outer extremities of the work roll 10.
  • Each bracket carries a support 21 which comprises a rectangular box member 22 formed of a pair of spaced sides 23 joined to a pair of spaced ends 24.
  • Each of ends 24 is provided with a bore adapted to receive an elongate rod 25.
  • the box member 22 accommodates a spring 26 disposed between the rear end 24' and an abutment 27 provided on rod within the box.
  • the rod 25 carries at its forward end an elongate arcuate body member 30 and rod 25 is threaded at its rearward end and carries abutment 27 threadably engaged therewith. the an rangement being such that with support member 21 secured to header bracket 20, rotation of abutment 27 permits adjustment of the loading applied to rod 25 and the bias applied to,
  • Pairs of conduits 31, 32 and 33, 34 each serve to provide a fluid inlet conduit and a fluid outlet conduit for a row of grooves or passageways in the face of member 30 adapted to abut work roll 10.
  • Each of grooves or passageways 40 is surrounded and defined by a pad spacer 41 secured to the concave surface of backing plate 38.
  • Each groove or passageway 40 is provided with an inlet 42 in backing plate 38 communicating with an inlet conduit 31 and an outlet 43 in backing plate 38 communicating with outlet conduit 32 the arrangement being such that when in contact with a roll, the flow passing along conduit 31 in the direction indicated by the arrows from its inlet pipe 36 passes via inlet conduit 31 through inlet 42 in back plate 38 into the groove or passageway 40 and into the contact with the surface of the roll and circuiates within groove or passageway 40.
  • the fluid with the groove 40 passes out of the groove 40 via outlet 43 into conduit 32 and thence out of the member 30' via outlet 37.
  • Across each groove or passageway 40 is provided four spaced wiper blades extending longitudinally of the member for the purpose hereinafter described.
  • the member 30 In its assembledposition, the member 30 is secured to the header bracket 20 by means of support member 22. and support 21 secured thereto.
  • the threaded abutment 27 is adjusted until the pads 41 on wiper blades 45 abut the cylindrical surface of work roll 10 and are biased thereagainst.
  • the pads and wipers are formed of Nylon 66.and in particular a Nylon commercially available under the Trade Name POLYPENCO NYLON 66.
  • water is admitted to the grooves and passageways 40 and circulates in the space defined by the surface of the roll the pads 41 and the backing plate 38 ofmember 30, the water being in contact with the surface of the roll 10 to exert cooling action on the surface of said roll.
  • the wiper blades 45 are adapted to provide a scraping action on the surface of the roll as it rotates and serve to break down any steam film which may be formed on the surface thereby improving the cooling of the roll.
  • This formation of a steam film is, of course, instantaneous and as the roll rotates the forward edge of the film is engaged by the cooling fluid and that side of the groove adjacent the trailing edge of the cooling member.
  • the water flow is turbulent due to the movement of the roll and this turbulent flow has the effect of breaking up the steam film thus providing efficient cooling of the roll surface by fluid throughout the width of the groove, subsidiary turbulence being provided by virtue of wiper blades 45.
  • the cooling cycle is repeated as theroll reaches the second cooling groove in its travel and it will be appreciated that the device provides a most efficient and simple cooling system for a'hot roll or other moving device.
  • The. system may be used in cold rolling where oil could be mixed with the cooling fluid or applied separately and the pads can be adjusted or arranged to leave a thin film of oil upon the work roll.
  • An apparatus for cooling a work roll comprising:
  • a pad means adapted to abut said work roll and defining at least one cooling chamber in common with the roll surface;
  • cooling chamber having inlet and outlet means for supplying a continuous flow of coolant and/0r lubricant through said chamber and against said roll surface;
  • At least one wiper blade extending across said chamber in a direction transverse to the direction of rotation of said roll, said wiper blade defining rows through said chamber and abutting said roll to direct the flow of coolant therethrough and for removing a liquid lamina layer from the roll surface;
  • cooling member includes an arcuate longitudinal backing plate extending across a substantial part of the width of said roll and having on its convex side at least two longitudinally disposed conduits.
  • said concave side includes a plurality of spaced arcuate pads disposed substantially transverse to said longitudinal pads to define a plu-' rality of cooling chambers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Mounting Of Bearings Or Others (AREA)
US707716A 1967-02-28 1968-02-23 Cooling of rolls and the like Expired - Lifetime US3540527A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4583366A GB1172373A (en) 1967-02-28 1967-02-28 Improvements in or relating to the Cooling of Rolls
GB4583367 1967-02-28

Publications (1)

Publication Number Publication Date
US3540527A true US3540527A (en) 1970-11-17

Family

ID=26265680

Family Applications (1)

Application Number Title Priority Date Filing Date
US707716A Expired - Lifetime US3540527A (en) 1967-02-28 1968-02-23 Cooling of rolls and the like

Country Status (6)

Country Link
US (1) US3540527A (xx)
LU (1) LU55533A1 (xx)
NL (2) NL6802753A (xx)
NO (1) NO122120B (xx)
PL (1) PL71354B1 (xx)
SE (1) SE351995B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422318A (en) * 1980-01-25 1983-12-27 Escher Wyss Limited Roller with a roller surface which is to be heated or cooled
US4875355A (en) * 1987-05-22 1989-10-24 James Burn International Ltd. Manufacture of wire binding elements
US4996858A (en) * 1988-04-11 1991-03-05 Sms Schloemann-Siemag Aktiengesellschaft Apparatus for hydrostatic bracing of a roll in a rolling mill
US5046347A (en) * 1989-10-10 1991-09-10 Alcan International Limited Coolant containment apparatus for rolling mills
CN102615110A (zh) * 2012-04-13 2012-08-01 山西百一机械设备制造有限公司 精密带钢轧机用压辊冷却装置
US20150231676A1 (en) * 2012-05-11 2015-08-20 Sms Siemag Ag Device for cooling rolls
CN111889518A (zh) * 2020-08-06 2020-11-06 建龙北满特殊钢有限责任公司 一种节水型轧辊孔型表面冷却装置、制造方法及轧钢机组

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422318A (en) * 1980-01-25 1983-12-27 Escher Wyss Limited Roller with a roller surface which is to be heated or cooled
US4875355A (en) * 1987-05-22 1989-10-24 James Burn International Ltd. Manufacture of wire binding elements
US4996858A (en) * 1988-04-11 1991-03-05 Sms Schloemann-Siemag Aktiengesellschaft Apparatus for hydrostatic bracing of a roll in a rolling mill
US5046347A (en) * 1989-10-10 1991-09-10 Alcan International Limited Coolant containment apparatus for rolling mills
CN102615110A (zh) * 2012-04-13 2012-08-01 山西百一机械设备制造有限公司 精密带钢轧机用压辊冷却装置
US20150231676A1 (en) * 2012-05-11 2015-08-20 Sms Siemag Ag Device for cooling rolls
US9610622B2 (en) * 2012-05-11 2017-04-04 Sms Group Gmbh Device for cooling rolls
CN111889518A (zh) * 2020-08-06 2020-11-06 建龙北满特殊钢有限责任公司 一种节水型轧辊孔型表面冷却装置、制造方法及轧钢机组

Also Published As

Publication number Publication date
NO122120B (xx) 1971-05-24
NL6802753A (xx) 1968-08-29
SE351995B (xx) 1972-12-18
NL134266C (xx)
PL71354B1 (xx) 1974-06-29
LU55533A1 (xx) 1968-05-03

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