hydraulic power unit cold roll mill gap control

Strip Thickness Control of Cold Rolling Mill with Roll ...

the roll gap, or the roll bite) between the work rolls. In this region the metal is plastically deformed, and there is slipping between the strip and the work roll surface. The necessary compression force is applied by hydraulic rams, or in many older mills by a screw arrangement driven by an electric motor [6]. Figure 1.

4 High Reversing Cold Rolling Mill LUSOSIDER Paio Pires ...

units of production by the installation of latest generation visualization and control systems. The modifications carried out by Ingeteam Power Technology, S.A. include: Quarto Mill Nr. 1 - Speed master control - Automatic thickness control AGC - Hydraulic gap control HGC - Operation and visualization systems and data logger - Fault system ...

Cut-To-Length Line, Scrap Choppers, Rolling Mill Equipment

About Butech Bliss and our Cut-to-length line Equipment. Butech Bliss leads the industry with our coil processing cut-to-length line and slitting line equipment, rolling mill, extrusion and forging, scrap choppers and side trimmers, shears, material handling, and other state-of-the-art metal processing equipment.Since Butech and Bliss joined forces in the 1980s, we have been able to expand our ...

Troubleshooting Hydraulic Pumps - Machinery Lubrication

If the oil level is low, determine where the leak is in the system. Leaks can be difficult to find. A press-roll hydraulic system at a paper mill in South Carolina had a continual problem with low oil levels, but the leak could not be found. The hydraulic unit was in the basement, and the piping ran up through the deck to the roll upstairs.

Basics of Rolling of Steel – IspatGuru

In some mills (e.g. hot strip mill, wire rod mill, merchant mill, and cold rolling mill), the rolled product is coiled in a coiler or a wind up reel. Mostly, rolling is done at high temperature, called hot rolling, because of requirement of large deformations. Hot rolling results in residual stress-free product.

A BASIC UNDERSTANDING OF THE MECHANICS OF …

of other problems in a mill such as a power cut, mechanical problems of transportation or in the water ... The wear parameters in the gap, the contact area of hot rolled material during rolling may be unique but neck loads and contact stress in all other applications (cold rolling, back …

Hot Rolling Mill Hydraulic Gap Control (HGC) thickness ...

HGC (Hydraulic Gap Control) cylinder. The AGC system provides the reference value for the HGC positioning system. Figure 1 Schematic structure of a hot rolling mill The thickness of the rolled material is measured by an X-Ray thickness gauge in the last pass. This measurement is possible within several meters distance from the

THE MECHANICS OF TENSION CONTROL

core diameter and 35 inch outside roll diameter, if taper tension was set to 50%, the tension will be linearly decreased from 3.5 inch core to 35 inch roll diameter so the tension will be half at the outside of the roll compared to the core. How do tension controls work? A word about the term drive

Characterization of a Yb:YAG Disk Laser Line Welder for ...

portional hydraulic control method. Although the viscosity of the hydraulic oil is affected by the ambient temperature and consequently the precision of control is slightly changed, the welding part reliably avoids rupture of cold-rolled steel sheets in the thickness range 0.15 to 0.30 mm.

ETALS - nidec.com

- Thickness Control (Hydraulic Gap Control, Automatic Gauge Control including mass flow and monitor control) - Tension Control - Automatic Flatness Control (including roll thermal crown and wear evaluation and bending control) - Eccentricity Control - Automatic Elongation Control (temper and skin pass) - Weld Tracking (continuous tandem ...

Setting Automated Roll Axial Shifting Control System of ...

Thus, the mill stand of the 5,000 mm plate mill at OJSC Magnitogorsk Iron and Steel Works (hereafter referred to as the 5,000 mm mill) is equipped with the axial WRS (Work Roll Shifting) system being a part of the CVCplus (Continuously Variable Crown) unit …

INDAR - Reversing Cold Strip Rolling Mill ARANIA - Euba ...

their associated thyristor converter units, digitally controlled. The automation system consists of a master control system for the mill setup, speed and torque setpoint generation, emergency strategy and auxiliary system control. Additionally, the AGC con-trol system is in charge of the Hydraulic Gap Control (HGC) and the thickness control.

Solving Hydraulic System Overheating Problems

The hydraulic system was comprised of a diesel-hydraulic power unit, which was being used to power a pipe-cutting saw. The saw was designed for sub-sea use and was connected to the hydraulic power unit on the surface via a 710-foot umbilical. The operating requirements for …

laing Mill.

controlled via the integrated control panel and thus reducing maintenance time. Accessories and options. – Roll-grinding unit OLFS – Roll removal device – Motor control cabinet – Central hydraulic unit – Bearing temperature monitoring – Vibration monitoring Roll quality and maintenance. Rolls are the centerpiece of a flaking mill.

작성 조봉래 - Daum

Skin Pass Mill Roll Dia. Tension, Elongation Tension Levelling Leveller Type. Tension, Elongation Shear & Trimmer Shearing Force, Hydraulic Power, Trimmer Gap EPC & CPC System Theory, Application. Tension Reel Mandrel Dia. Tension, EPC, Motor Power Roll Specification, Roll Dia. Crown, Rubber Material

Rolling mill for tube and square profile : - Tube Mill ...

6- high-frequency welding: as you know this kind of welding is without electrode by high-frequency welding HF WELDER has several types by power LOTOS FORMING USE 200-400 ampere. this part of tube mill line includes serval different parts, such as Overall control table, Speed adjustor, Rectifier cabinet, Inverter output cabinet, Water-water cooling device (air-water cooling device) and so …

PLYWOOD PRESS - 640 Ton Hot Press Machine Manufacturer ...

SHIV Industries made 640 ton hot press performs best quality production of 8' x 4' plywood sheets and flush doors with very effective automatic time cycle and control system. we provide all our press machine with complete installation service on turnkey project basis. our product is also known as "Multi daylight Hot press" and Plywood Hot press. we use all braded hydraulic parts like veljan ...

Reheating Furnace Reheating Furnace for Steel Rolling Mill ...

Reheating furnace for steel rolling mill line is a device (an industrial furnace) that heats a material or a workpiece (generally a metal) to rolling forging temperature in the metallurgical industry.. Structure and composition. According to the distribution of furnace temperature, the furnace is divided into preheating section, heating section and heating section along the length direction.

EXPECTED USEFUL LIFE TABLE - Wa

Cold Water and Sewer Lines 40 40 Compactors 15 15 DHW/Supply/Return 30 30 Dumpsters 10 10 Dumpster Enclosures 10 10 Fence only Earthwork 50+ 50+ Electrical Distribution Center 40 40 Emergency Generator 15 15 Fencing Chain Link 40 40 Wrought iron 50+ 50+ Stockade 12 12 Post & Rail 25 25 Gas Lines 40 40 Heating Supply/Return 40 40 Incinerators 50 ...

Adjusting Rolling Speed and Thickness to Help Ensure Metal ...

3-20 mm. 0.100 mm. Rolling speeds (meters per min) ~ 100. ~1000. ~2000. Automatic Gauge Control (AGC) is an essential component of modern rolling mills. Comprehensive AGC algorithms incorporate readings from dozens of sensors around the mill to control thickness to high tolerances.. Some of the key AGC input parameters are speed and tension.

Press Transfer Lines - Pressmach: machines for forming ...

The mechanical arm is mainly composed of three parts: the gripper, the movement mechanism and the control system. The gripper is used to grip the workpiece (or tool). There are various structural forms of gripper according to the shape, size, weight, material and operation requirements of the object to be grasped, such as clamping type, holding ...

US3427839A - Hydraulic adjusting means for rolling mills ...

US3427839A US3427839DA US3427839A US 3427839 A US3427839 A US 3427839A US 3427839D A US3427839D A US 3427839DA US 3427839 A US3427839 A US 3427839A Authority US United States Prior art keywords pressure rolling control adjusting chock Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Reading fluids circuit diagrams - hydraulic & pneumatic ...

Directional control valves are used to direct fluid flow into the appropriate lines for the designated operation. These valves are usually electrically controlled. Hydraulic pumps. Hydraulic pumps are used to pump oil from the power unit to other parts of the hydraulic system. Some pumps have control options such as pressure or flow compensators.

Continuous bloom caster supplied by Primetals Technologies ...

The continuous bloom caster is equipped with the DynaFlex hydraulic mold oscillator and LevCon mold level control. The combination of the Dynacs 3D secondary cooling system and the fully automated DynaGap 3D roll-gap control with Dynamic Soft Reduction in the strand-guiding system ensures blooms are cast with consistently high quality.

Sundwig SPM and temper mills

Skin pass or temper mills can be designed with a pay-off and re-coiler group, a centering device, entry and exit bridles for tension adjustment, anti-flutter and anti-crimping rolls, respectively, a 2-high or 4-high mill stand with quick roll changing, bending blocks, automatic pass line adjustment, fully hydraulic screw-down cylinder system ...

Two-Roll Rubber Mixing Mill Selection Questionnaire

Two-Roll Rubber Mixing Mill Selection Questionnaire 1. Two-Roll Mill Selection Questionnaire Page 1 of 4 QUESTIONNAIRE FOR 2-ROLL MILL REQUIREMENT Criterion Please Answer Descriptively if needed Production Requirement: _____ Tons/Hour ; _____ of 8 hour Shifts/Day What is your expectation from this Mill?

Systematic Precision: Hydraulic Automatic Gauge Control …

having a thickness of 0.6 to 1.5 mm are cold-rolled to the desired thickness in several rolling steps (passes). When ... with the higher-level master control of the plant. e Rolling mill f Reversing mill stand. 6 ... comprises all the necessary hydraulic components. We combine power units, cylin-

Two 20-high, copper cold-finishing mills ordered from ...

To be installed in Ningbo, Zhejiang Province, eastern China, the new 20-high cold finishing mills for Ningbo Powerway Alloy Material Co. will competitively roll a wide product mix of copper alloys, from soft pure copper up to hard phosphor bronze. Strip dimensions will range from an entry thickness of 1.2 mm down to a minimum finish thickness ...