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Value Paper Authors: SUN Xin, SUN Han-feng Speed cascade ...

sensor in the mill line. − Loop scanner, which is used in automatic loop control, and generates the signal of material tracking simultaneously. − Stand threading signal, which is generated from the peak torque detector in the AC/DC drive unit. It is mainly used in roughing mill and intermediate mill area. It is generated when the rolling torque exceeds the nominal torque by 25% ...

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ABB solutions in Hot rolling - ABB in Metals

More than 100 years of process know-how in hot rolling mills results in better accessibility and higher productivity for your mill. Using the latest technology we help metals manufacturers to fulfill their product demands in both greenfield and modernization and upgrade projects. The ABB control and power system is adaptable to hot strips of various thicknesses and widths, as well as soft to ...

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Infrared Pyrometers | Williamson IR

Annealing, Hot Rolling Mill, Ladle & Caster. ALUMINUM. Extrusion, Hot Rolling Mill, Forging/Fasteners. PETROCHEMICAL. Smokeless Flare Monitoring, Pilot Monitoring, Sulfur Recovery Units . INCINERATION. Power Boilers, Furnaces, Rotary Kilns. VIEW ALL INDUSTRY APPLICATIONS. Wavelength Matters. So what makes us different? We believe that wavelength matters. Why does …

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DELTA - Loop Scanners

Loop Scanners The Infrared Loop Scanner Rota-Sonde TS optically scans the field to be controlled and does not need any optical adjustment. It accurately measures the size of the loop on wire, rod and profile mills, even for special metals, and in the presence of steam and fumes.

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java - Using Scanner inside a for loop for system …

read_choice.close(); Don't close the scanner as long as you are not done reading all the inputs. Doing also closes the underlying input stream (System.in), check the documention;You don't need to initialize the Scanner multiple times. Just create one instance and pass it around (keep using it).

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Solutions - Russula

Rolling Mills. Equipment designed for the long run and built to last. Rolling Mill Equipment. Flexible state-of-the-art design that never stops producing. Binding Machines . Keep your bundles together with failure proof technology. Coil Compactors. Keep your coils tight with a Russula compactor. Automation & Drives. Fine-tuned rolling mill control solutions to improve process stability ...

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Bar & Wire Rod Rolling Mill - Rolling Mill …

Hani Tech specialized in manufacturing high-speed morgan wire rod mill, high-speed rebar rolling mill, TMT rolling mill, high-speed gearbox, hard-faced gearbox, etc.We can supply designing, manufacturing, installation and commissioning of the equipment with "turn-key" service. Upgrading your existing Bar and Wire Rod mills, to increase production and improve efficiency and product quality, is ...

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MILL CONTROL SYSTEM AND METHOD FOR CONTROL OF METAL …

erate a control vector per scan. The inner control loop may be configured to have dynamic characteristics, which remain substantially the same for each scan of the controller. The dynamic characteristics of the inner control loop are effective to determine a pointwise online control solution based on the matrix indicative of the state conditions of the strip rolling, without having to compute ...

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The Hot Rolling Process

The roughing mill is made up of six independent rolling mill stands, the last four of which incorporate small vertical rolling mills called edgers. Slabs heated in the furnace until they glow bright orange-yellow are rolled through one stand at a time to produce so-called transfer bars suitable for finish rolling. High-pressure water-jet nozzles clean the oxidized iron, or scale, from the ...

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1. Hot rolling and rolling defects: 1.1 Front and back ...

1.7 Rolling mill control: Production of continuous sheets and strips is one of the attractive features of modern rolling mills. However, control of sheet thickness and cross-section is a real challenge. In order to continuously monitor the thickness of sheets rolled, x-ray or gamma ray sensors are used. Precise control of gage of rolled sheets can be done by adjusting the roll gap. The ...

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Rolling mill looper control system - …

29.12.1981· In a rolling mill looper control system for controlling a looper arm supporting a looper roller adapted to engage a strip of material to be rolled from a first roll stand to a second roll stand, including a direct-current looper motor for applying torque to said looper arm; a speed regulator for adjusting the speed of at least one of said first and second roll stands to provide a predetermined ...

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Outline of Free Size Rolling for Hikari Wire Rod and Bar Mill

Outline of Free Size Rolling for Hikari Wire Rod and Bar Mill metry during roll gap change is small. In addition, as shown in Fig. 4, the spread ratio of steel material in the 3-roll method is smaller than that in the 2-roll method. Because of these characteristics, the 3-roll method is more suitable for size-free rolling. 4.2.2 Requirements for size-free rolling The RSB uses a high-reduction ...

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LOOPER CONTROLLED ROLLING MILL - …

21.05.1974· A rolling mill for incrementally reducing the thickness of an elongated member passing through said mill, said mill comprising at least two tandem rolling stands driven by respective adjustable speed drives, looper means for sensing the depth of said material between stands and for generating a signal corresponding to the variation in said looper depth, means connecting said looper means to at ...

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Thermal scanner to screen students for fever at …

Vor 1 Tag· Monday was the first-day Hongwanji Mission School in Nuuanu used thermal scanners on its students to screen for fever, the head of school said it is just one way they are adapting during the COVID ...

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1. Hot rolling and rolling defects: 1.1 Front and back ...

1.7 Rolling mill control: Production of continuous sheets and strips is one of the attractive features of modern rolling mills. However, control of sheet thickness and cross-section is a real challenge. In order to continuously monitor the thickness of sheets rolled, x-ray or gamma ray sensors are used. Precise control of gage of rolled sheets can be done by adjusting the roll gap. The ...

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A SURVEY OF THE LOOPER-TENSION CONTROL TECHNOLOGY IN …

and mass flow in hot rolling mills can be satisfied by proper control of the strip tension and looper angle. Figure 1 shows the tension and looper control in a typical finishing mill. Traditionally, looper angle control has been per-formed by changing the rotating speed of a main motor but there has been no tension feedback control because of the difficulty of installing and maintaining ...

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Loop control to Roll Mill - YouTube

24.07.2013· Re-Bar Mill | Wire Rod Mill | Bar Mill | TMT Mill | Steel Rolling Mill | PREET Machines Ltd - Duration: 4:46. Preet Machines Limited 158,403 views

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Decoupling Control and Simulation of Looper …

This paper considers a dual-rate distributed predictive control strategy for the looper tension system in hot rolling mills, which is a typical multi-agent system with directed communication topology.

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Roll Forming: data M

COPRA® RF for Wire Rolling. COPRA® RF Roll Technology. COPRA® RF Analysis Tools. COPRA® RF CADFinder . Simulation with FEA. Metal Bending. +++DIVISION AUTOMATION: Roll Scanning. Flexible Rollforming. Material Testing. Profile Cross Section Scanning.

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Pacific InternationalClients - Pacific International

Sensors, Hot Metal Detector & Loop Scanners; Furnace Riders and Pins for Pusher type & Walking Beam Furnace; Pinch Roll, Looper Roll, Wrapper Roll, Run Out Table Roll; Cast/ Work rolls for Roughing Mill & Finishing Mill; Swivel Joints; Metallic and Non-Metallic Expansion Joints; Gas Analyzers; COLD ROLLING MILL. Universal Shafts, Gear Couplings ...

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The Hot Rolling Process - California Steel Industries

The roughing mill is made up of six independent rolling mill stands, the last four of which incorporate small vertical rolling mills called edgers. Slabs heated in the furnace until they glow bright orange-yellow are rolled through one stand at a time to produce so-called transfer bars suitable for finish rolling. High-pressure water-jet nozzles clean the oxidized iron, or scale, from the ...

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DELTA - Infrared Loop Scanners - BR4000 - …

Introduction. The Radiant Bar BR4000 is a portable infrared source that can be used to simulate the presence of hot product. The Lithium-ion battery make it autonomous, up to 1 hour in continuous.No cord and plug. The potentiometer allows simulation of different level of infrared signal to simulate different product's temperature.

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SENSORS, HOT METAL DETECTOR & LOOP …

SENSORS, HOT METAL DETECTOR & LOOP SCANNERS FOR ROLLING MILLS AND CASTERS. We supply specialized high performance and reliable optical sensors and dimension measuring equipments for continuous caster and rolling mill automation. The products are designed to withstand the extreme conditions of the steel industry. Hot Metal Detectors. The scanning system, in …

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Rolling of Steel in a Modern Long Product …

Rolling of Steel in a Modern Long Product Rolling Mill. Long product is a common name for (i) reinforcement steel bars, (ii) shaped steel bar products such as rounds, flats, squares, and hexagon etc., (iii) sectional products such as angles (equal and unequal), channels, beams, tees, and special profiles etc., and (iv) wire rods. Mills which roll long products are known as long product mills ...

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python - Why apply sometimes isn't faster than …

It seems apply could accelerate the operation process on dataframe in most cases. But when I use apply I doesn't find the speedup. Here comes my example, I have a dataframe with two columns >>>df index col1 col2 1 10 20 2 20 30 3 30 40 What I want to do is to calculate values for each row in dataframe by implementing a function R(x) on col1 and the result will be divided by the values in col2.

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Looper and tension control in hot rolling mills: A …

Looper and tension control, shown in Fig. 2, is important in hot strip mills because they affect both the dimensional quality and the mass flow of a strip.The high strip tension between stands induces width shrinkage, thickness reduction and moreover can produce an edge wave on a strip.

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Looping mill | Definition of Looping mill at …

Looping mill definition, a rolling mill for bar stock, wire, and the like, having the successive stands side by side so that the metal forms a loop in passing from stand to stand. See more.

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Pacific InternationalProducts - Pacific International

Sensors, Hot Metal Detector & Loop Scanners for Rolling Mills and Casters Slab & Continuous Casting Machines, Complete Mould, Complete Segments (Vertical & Horizontal) Electric Arc Furnace, Ladle Furnace and Transportation Cars & Cranes

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