mill roll changing arrangement
2022-01-15T07:01:34+00:00
MILL ROLL CHANGING ARRANGEMENT MESTA
MILL ROLL CHANGING ARRANGEMENT United States Patent Abstract: A quickreplaceable roll assembly for a rolling mill stand, said assembly comprising an inner carriage, rail engaging wheels rotatably mounted on said carriage, means for mounting a lower roll and a pair of bearing structures therefor on said carriage, said means MILL ROLL CHANGING ARRANGEMENT United States Patent Abstract: A quickreplaceable roll assembly for a rolling mill stand, said assembly comprising an inner carriage, rail engaging wheels rotatably mounted on said carriage, means for mounting a lower roll and a pair of bearing structures therefor on said carriage, said means MILL ROLL CHANGING ARRANGEMENT MESTA Prior to the separation of the work rolls preparatory to roll changing, the carriage 77, which, as noted before, includes the platform 33, is brought to a position in front of the mill and arranged so that an empty pair of tracks 73 is provided in front of the mill to receive the roll assemblies 14 and 15 ROLL CHANGING ARRANGEMENT FOR A ROLLING
USA Mill roll changing arrangement
Mill roll changing arrangement Download PDF Info Publication number USA USA USDA USA US A US A US A US D A USD A US DA US A US A US A Authority US United States Prior art keywords roll rolls assembly millThe work roll chocks are provided with wheels which during the roll changing operation are carried by a pair of upper tracks secured to the housings and chocks of the upper backup roll and by a pair of lower tracks carried only by the housings A bridge is located at ROLL CHANGING ARRANGEMENT FOR A ROLLING roll changing arrangement in hi mills winkelvansophie roll changing arrangement in 4hi mills digitalonecoin CAA Roll changing arrangement for a rolling mill Prior art keywords roll changing arrangement rolling mill Prior art date Legal status The legal status is an assumption and is not a legal conclusion Get More info Mill roll changing arrangement in 4hi mills housecleanpl
Tandem rolling mill arrangement STEINBOCK; ROLF
It is still a further object of the present invention to provide an improved construction and arrangement of parts for separate and independent rolling mill stands employed in a versatile tandem mill arrangement for an efficient and rapid roll changing so that the mill stands can be readily manipulated and supported at desired positions to form part of different tandem rolling mill arrangements for producing workpieces A roll changing device for rolling mills, comprising: a mill stand having a housing, and upper and lower roll sets constituting a pair, each including a work roll, an intermediate roll and a back up roll with said intermediate roll disposed between said work roll and said back up roll;Roll changing device for rolling mill Hitachi, Ltd During the course of my 25yearlong experience of endless discussions about rolls, roll application and roll failures with customers and fellow colleagues from other roll producers I found my performance often miserable or worse, frequently due to a lack of common understanding of the basic material science of my subjectA BASIC UNDERSTANDING OF THE MECHANICS OF
Rolling of Metals
• Rolling –reducing the thickness or changing the crosssection of a long workpiece by compressive forces applied through a set of rolls • Developed in late 1500s • Accounts for 90% of all metals produced by metal working processes • Often carried out at elevated temperatures first (hot rolling) to change coarsegrained, brittle, and porous EP B1 ROLL CHANGE ARRANGEMENT FOR BEAM MILL STAND [origin: EPA1] A beam mill stand has lower horizontal roll chocks (16), supported by a screwup (17) while upper horizontal roll chocks (14) suspended on hooks (26) from balance beams (25) are urged downward by screwdowns (15) Vertical roll chocks (22, 24) are supported by and moveable in EP B1 ROLL CHANGE Fig 2 Typical 4high stands showing various details Prestressed mill stand – In a conventional rolling mill, the roller separating force which arises when the work piece bar is passed through the rolls is transferred through the backup rolls and their bearings to the mill house In a prestressed mill stand, the two backup rolls are connected to each other by an element, prestressed to a Rolling Mill Stands – IspatGuru
GENERAL ASPECTS OF ROLL COOLING FOR HOT COLD
development of roll surface defects, which immediately can be found on the rolling product A proper roll cooling is hence essential for a long roll life time, extending for the rolling periods to a maximum, for reducing roll changing and finally maximisingthe production output and product quality of the mill •Rollstrip contact length L •Average strip width w –despite the fact that spreading, or an increase in width, may actually occur if edger mills are not used •Average true stress of the strip in the roll gap Y avg •Assumes no friction and thus predicts lower roll force than the actual value •Power per roll (SI units)= pFLN / 60,000 kWRolling of Metals Figure 6 shows examples of arrangement of a shape roll In a foil rolling mill (for a material with a thickness of 0006 to 05 mm), a shape roll is fixed as shown in Fig 6(a) and a wrap angle is adjusted by changing the height of the tucking roll In a cold rolling millFlatness Control System of Cold Rolling Process with
On the arrangement of rolls in crossroll straighteners
Int J Mech Sci Vol 23, pp 213220, 1981 00207403/0850200/0 Printed in Great Britain Pergamon Press Ltd ON THE ARRANGEMENT OF ROLLS IN CROSSROLL STRAIGHTENERS N K DAS TALUKDER Department of Mechanical Engineering, Banaras Hindu University, Varanasi, 221 005, India and W JOHNSON Department of Engineering, University of Roll Pass Design satyendra; June 18, 2014; 0 Comments ; Long products, roll grooves, Roll pass, Roll pass design, rolling mill, rolls, sections,; Roll Pass Design Long products are normally rolled in several passes, whose numbers are determined by the ratio of the initial input steel material (square or round billet or bloom) and final cross section of finished productRoll Pass Design – IspatGuru the roll stand (including the housing, chocks, and bearings, may deflect under high roll forces to such an extent that the roll gap can open up significantly Schematic illustration of various roll arrangements: (a) fourhigh rolling mill showing various features The stiffness of the housing, the rolls, and the roll bearings are all important inCh 13 uohedusa
专业英语词汇词组(轧制部分)百度文库
全连续 singlepass stand 单道次机座 coilbox 卷取箱 Steckel mill 斯泰克尔轧机 tandem cold mill 冷连轧机 strip tension 带钢张力 pickling 酸洗 annealing 退火 residual stress 残余应力 slitting and cutting 纵切 rigidity 刚度 inspection 表面检查 marking 打印 dandy roll is located on top of the forming fabric over the suction boxes This is a light open structured roll covered with wire cloth, resting lightly upon the surface of the sheet Its function is to flatten the top surface of the sheet and improve the finish A pattern on the dandy roll may leave translucent patterns on the wet paper, in thePapermaking OVERVIEW AND INTRODUCTION 1 The pinch roll comprises stationary frame provided with a rotatably mounted lower roll and stationary lower blade adjacent the lower roll This arrangement provides an advantage of minimized space with a compact structure Salient Features: Facilitates quick roll changing; Compact and simple design; Easy to install and requires minimum maintenanceRoll Forming Machine Rolling Mill Plants
Rolling (metal forming) apratim khandelwaldocx
4) Roll changing device Sometimes the roll arrangement has to be changed to meet the rolling requirements for a particular operation and instead of taking the work force to a new set of rolls or to a new mill, a roll changing system is introduced which can be used to replace the rolls and insert and arrange the new set of rolls accordingly Int J Mech Sci Vol 23, pp 213220, 1981 00207403/0850200/0 Printed in Great Britain Pergamon Press Ltd ON THE ARRANGEMENT OF ROLLS IN CROSSROLL STRAIGHTENERS N K DAS TALUKDER Department of Mechanical Engineering, Banaras Hindu University, Varanasi, 221 005, India and W JOHNSON Department of Engineering, University of On the arrangement of rolls in crossroll straighteners Figure 6 shows examples of arrangement of a shape roll In a foil rolling mill (for a material with a thickness of 0006 to 05 mm), a shape roll is fixed as shown in Fig 6(a) and a wrap angle is adjusted by changing the height of the tucking roll In a cold rolling millFlatness Control System of Cold Rolling Process with
Rolling of Metals
•Rollstrip contact length L •Average strip width w –despite the fact that spreading, or an increase in width, may actually occur if edger mills are not used •Average true stress of the strip in the roll gap Y avg •Assumes no friction and thus predicts lower roll force than the actual value •Power per roll (SI units)= pFLN / 60,000 kW from the roughing mill train and lowering rolling temperature, the highrigidity CRM of Danieli, Italy, having a mill rigidity of 440 t/ mm, were installed at the top end of the bar rolling line (see Photo 1) Table 1 shows the specifications of the CRM 212 RSB (1) High mill rigidity Threeroll mills have been used in Japan and abroad since someUDC 621 771 25 Making to High Performance and the roll stand (including the housing, chocks, and bearings, may deflect under high roll forces to such an extent that the roll gap can open up significantly Schematic illustration of various roll arrangements: (a) fourhigh rolling mill showing various features The stiffness of the housing, the rolls, and the roll bearings are all important inCh 13 uohedusa
Papermaking OVERVIEW AND INTRODUCTION 1
dandy roll is located on top of the forming fabric over the suction boxes This is a light open structured roll covered with wire cloth, resting lightly upon the surface of the sheet Its function is to flatten the top surface of the sheet and improve the finish A pattern on the dandy roll may leave translucent patterns on the wet paper, in the The looping section of the rod mill offers various economies in power usage and speed for certain kinds of rods, The finishing mills roll individually, which prevents the steel from twisting In the mill shown here, rods slightly less than ‘/ t inch in diameter are delivered to the laying cones tor coiling at the rate of about 8500 feet per Steel process flowlines SlideShare Some important sources of danger which can affect the safety of roll on/roll off ships and of persons on them include: 1 Cargo badly stowed or inadequately secured inside or on cargo units 2 Free surface effects in tank vehicles, tank containers or other bulk units which are slack 3 Poorly maintained ramps, lifts and stern doors 4CARGO SECURING MANUAL FOR M/S TEST VESSEL