High-strength non-oriented electro-technical steels with a low thickness possess excellent isotropy of electromagnetic and mechanical properties which is highly required in the production of high-efficiency electric motors. The manufacturing process of this type of steel includes very important and technologically complex routes such as hot rolling, cold rolling, …

This article discusses the solution to the urgent problem of increasing productivity and reducing the energy consumption of broad strip hot rolling mills (BSs) while improving the quality of rolled products. The technological capabilities of spray cooling and the use of cooling rollers whose cavities are filled with aluminum or copper balls are analyzed. The roller …

Patent US5133205 - System and process for forming thin flat hot ... The required high speeds of the hot rolling mill, necessary particularly to avoid ..... steel strip, which would function on the commercial scale under actual manufacturing..... 1 is a diagrammatic representation. of a prior art system and process for ...

High pressure (HP) hydraulic descaling is usually used in hot strip mills to remove oxide scales from steel strip formed after the reheat furnace and during hot rolling.

A typical hot aluminum rolling mill has multiple rolling stands for successively reducing the thickness of a metal strip. Each rolling stand works the strip by compressing the metal strip and by propelling the strip through the stand rollers. Each rolling stand operates at a speed determined by a respective single variable controller.

The workpiece material was an aluminum A1050-H. Commercial rolling oil was used as base oil for the aluminum emulsion. The rolling force was measured during the rolling and the appearance of the ...

AMAG rolling is upgrading and modernizing a two-high hot rolling mill and a four-high cold rolling mill at its plant in Ranshofen, Austria.The parts and work for both orders will be supplied by Primetals Technologies.The aim of the work is to improve the reliability and safety of the equipment.

Flat Rolling •Roll Force: F= LwY avg •Roll-strip 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

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 1.2.5 Cooling. After exiting the finishing mill, the strip, at a temperature of 800–900°C, is cooled further under controlled conditions by a water curtain on the run-out table.The run-out table may be as long as 150–200 m. Cooling water is sprayed on the top of the steel at a flow rate of 20,000–50,000 gpm; and …

A rolling mill comprising an upper set of rolls comprised of a work roll 7 and a backup roll 8, and a lower set of rolls comprised of a work roll 7 and a backup roll 8 is disclosed. The rolling mill further comprises two parallel intermediate rolls 6 being arranged between the work roll 7 and the backup roll 8 of either upper set or lower set or both sets, each of the intermediate rolls 6 ...

These graphs were obtained in rolling an aluminum coil 1,250 mm wide during a roughing pass in which its thickness was reduced from 0.94 to 0.59 mm operating at a speed of 500 m/m, the wave forms for the rolling mill spectrum being captured at the peak of the back-up roll eccentricity beat, the nominal rolling load being about 725,000 Kg.

The thickness of these samples was 1.8 mm. The next samples were taken from the experimental hot band after its rupture during the cold rolling by a 5-stand tandem cold rolling mill. In the tandem cold rolling process (see Figure 1), a metal strip is passed through five pairs of independently driven work rolls.

FIG. 1 shows a metal strip B in the process of being rolled in a rolling mill having two stands 1, 2 in the nips of which the strip B is simultaneously gripped, for example a finishing mill for the hot rolling of steel strip. Rolling mills of this type generally have 5, 6 or 7 stands.

I. F. Kurunov, V. N. Titov, V. L. Emel'yanov, A. M. Loginov and V. I. Basov, et al. - Effect of the quality of the iron-ore-bearing raw materials and coke on the performance indices of blast furnaces at the Novolipetsk metallurgical combine I. V. Derevyanchenko, O. L. Kucherenko, I. V. Repin, Yu. N. Kirilyuk and E. E. Shumakher, et al. - Use of an aluminum injection …

After passing through in-line hot rolling mills and typically undergoing 10–50% thickness reduction, 4) the hot strip passes onto a run-out table, where it is rapidly cooled by spraying water jets and is subsequently coiled. 4,10) The strips may then be uncoiled, cold-rolled, and annealed, so as to obtain more desirable microstructures and ...

In a metal strip rolling mill having a strip shape measuring means connected to adjust the mill to control the strip shape, improved strip shape control performance is achieved by mounting a hold-down roll between the measuring means and the take-up reel. ... Download PDF Info ... Priority to US06/211,301 priority Critical patent ...

3.2.6 Rolling of non-ferrous metals and alloys 143 3.2.7 Cold rolling of sheet, strip and foil 146 4. Rolling Equipment and Systems 168 4.1 Mill Stand Components and Mechanisms 168 4.1.1 Rolling mill rolls 169 4.1.2 Roll neck bearings 186 4.1.3 Roll chocks 197 4.1.4 Mill housings 201

In this step, the porosity of the green strip can be substantially reduced, e.g., from around 50% to less than 10% porosity. Due to the hardness of the intermetallic alloy, it is advantageous to use a 4-high rolling mill wherein the rollers in contact with the intermetallic alloy strip preferably have carbide rolling surfaces.

An aluminium foil rolling method comprising the steps of taking two strips of aluminium, bringing facing surfaces of the two strips into contact with one another and subjecting the two strips to a first pack rolling operation, thence subjecting the same two strips to a second pack rolling operation whilst maintaining the two strips in substantially the same registry as when the first …

Figure 4. flatness problem on strip [4]. Mills are supported by automations in order to measure the outgoing shape of the strip and then instructed the mill controls. High performing flatness measurement and control is a critical success factor for flat rolling mills. Outgoing shape is measured by a shapemeter roll (Figure 5).

Aluminum Hot Rolling Reversing Mill Application Overview Temperature Control in the Hot Rolling Mill Aluminum sheet and plate products are used for a wide range of applications, including can stock, brazing, automotive and aerospace. These industries demand exacting tolerances and precise

Abstract: A magnesium hot rolling mill system including a rolling mill having at least two work rolls for rolling of magnesium sheet or plate, a hot coiler positioned on either side of the rolling mill for heating and maintaining a desired temperature of the magnesium sheet or plate, active thermal roller tables, a mill drive system for independently driving the work rolls …

A continuous strip rolling mill for processing metal sheet encompassing the rolls thereof, the centers of the rolls being located at the ends of straight segments of a broken line, one of the rolls being mounted in stationary chocks. It is preferable that the segments form angles of 90*, but it is also possible that the roll mounted in the stationary chocks be located at the point of ...

Currently, rolling production technology both in Ukraine and abroad achieved significant positive re-sults on increase in rolling mills productivity. It be-came possible due to development of Compact Strip Production. Production of section iron from conti- nuous cast sections in comparison with rolling-mill

68 PLATE MILLS: Investment Opens Doors to a New Market Gerdau Açominas expands its portfolio with technology from Siemens VAI 70 HOT-STRIP ROLLING: World's Most Powerful Hot-Strip Mill The Siemens VAI next-generation hot-rolling mill is the critical part of ATI's new hot-rolling and pro cess - ing facility 72 HOT-STRIP ROLLING: A New ...

Rolling Mill Machinery Engineers - Mundees.Co.Za. Fenn engineers and manufactures a complete line of precision rolling mills for enjoyed by fenn's rolling mills is the result of the machine's robust design, get price; rolling mill machinery - steel rolling mill machinery from . rolling mill machinery - manufacturers of steel rolling mill ...

Thanks to its broad range of cold rolling mills for strip widths from 60 to 2,100 mm, ANDRITZ Metals has been one of the preferred cold rolling technology suppliers for decades. The supply focuses on 2-high rolling mills, high-capacity 4-high …

Following quenching, the strip is subjected to a cold mill 130/132. The strip may be at ambient temperature and passes between two counter rotating rolls with a gap less than the incoming thickness. Normally two rolling mills may be used to obtain the desired thickness. However, a different number of rolling mills may be used: 1,3, etc.

We, Kobe Steel, Ltd., have supplied many aluminum and non-ferrous rolling mills since 1965. We can meet your expectations and provide the best solution of the rolling mill technologies based on a plenty of our results and experiences.

Abstract. This paper presents the results of the work carried out by the Department for Metal Working Processes at NUST for production technology of: high-strength automotive flat stock from bi-phase ferrite martensite steels (BPHFMS) on a broad-strip hot-rolling mill by staged laminar cooling on a runoff table, as well as K52–56 strength grade cold- and corrosion …

Rolling is a process used to shape metal into a thin long layer by. passing it through a gap of two rollers rotating in different direc-. tions (clockwise and anti-clockwise) [5]. The gap between ...

A clean cold strip is produced by injecting at a high pressure a rolling mill lubricant emulsion of a low concentration to both the sides of a strip at the last stand of a rolling mill, thereby removing oil and metal dust therefrom, charging the cold strip as rolled into a box annealing furnace, mixing water steam with an atmospheric gas of the annealing furnace consisting mainly of nitrogen ...

Patent US5636543 - Hot steel plate rolling mill system and ... - Google. the at least one rolling mill stand with small work rolls is a 4-high or 6-high mill in ... wherein said strip leading end reducing means includes means for changing a .... the number of stands is so many, and very large motor power is required. Get Price

rolling mill at Dongbu Steel Co., Ltd. of South Korea and have been operating reliably since commencing commercial operation in 2009. Precise Control Made Possible by Simulator and Support Tools Hot rolling requires delicate and precise control of roll speed, rolling force, strip tension, and other parameters while continuous-

mill. The stand type of it is four – high cold rolling mill. COLD ROLLING ALUMINUM: Novelis operates a variety of types and sizes of cold roll mills at locations around the world, including some that run at ... 4- Start the rolling mill 5- Feed the strip through the mill (make sure not to feed the strip at an angle into the rolls). 6- In the ...