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Inline measurement of roll spindle torque for rolling mills Transformation Monitor Measurement of % permeability of cooling steel on the ROT Width-Gauge Stereo Camera Non-contact stereoscopic camera width-gauging systems for Hot Strip Mills Work Roll Lubrication
The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process.
Traditional cold rolling lubricants comprise a base oil, load bearing additives and anti-oxidants. The base oil must have a suitable viscosity for the mill duty and a narrow boiling range to minimise both evaporation during use and the risk of staining during annealing of the rolled strip.
roll-gap lubrication for hot and cold rolling, which were developed utilizing extensive knowledge and expertise about the tribological interactions in the roll-gap. The advanced work-roll lubrication package (A-WRL) for hot rolling and ESP mills is using specially designed mixer-nozzle units to mix the water/oil emulsion very close to the
1. lubrication, roll cooling, inter stand and skin cooling, 2. bending, shifting, prediction of roll forces and looper tension. The first set of tools are there for the surface quality. Actually, the ir goal is to avoid fini shing mill rolled in scale. In case the scale is not able to deform to the same extent as the steel, it is broken.
Hot to the touch might only be 130 degrees F, as 120 degrees F is generally the threshold temperature where you can still hold your hand on the surface. ... (poor lubrication, high load, high speed, etc.), excessive lubrication (grease overpressure), high oil level (oil churn) and misalignment. ... If the bearing is on a circulating oil system ...
The purpose of using hot rolling mill lubricants is to effectuate a number of the benefits which can only be achieved by the use of lubricants. Effective lubrication during the hot rolling of metals materially increases roll life, thereby reducing the number of roll changes and mill downtime. This results in increased production at lower costs.
In terms of usage, hot rolling processes more tonnage than any other manufacturing process, and cold rolling processes the most tonnage out of all cold working processes. [1] [2] Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal, typically steel, into products such as structural steel ( I ...
Lubrication system for hot-strip mill rolls Download PDF. Download PDF. Rolled Products; Published: April 1980; Lubrication system for hot-strip mill rolls ... Mill Roll; Lubrication System; Download PDF. Advertisement. Over 10 million scientific documents at your fingertips. Switch Edition. Academic Edition; Corporate Edition; Home;
Rolling Mill Bearing Lubrication And Sealing. Dec 28, 2016. Whether the performance of Rolling mill bearing can be effectively utilized to a large extent. depend on lubrication, the lubricant is called "the fifth bearing parts." Rolling bearing damage. causes more than 40% are caused by poor lubrication, so to reduce the consumption of rolling.
Using lubricant in cold rolling and controlling the roll-wear in hot rolling are some of the ways to achieve these goals. Cold rolling is usually used to produce metal strips with superior thickness tolerances and surface quality. Effective lubrication systems are …
The majority of cold and foil rolling operations use oil-based lubricants, although some mill systems can accommodate water-based alternatives. The base oil represents more than 90% of the total lubricant volume and acts as a solvent for the load bearing additives and a roll-cooling medium. The base oil viscosity has a significant effect on the ...
Roll-gap lubrication system Hydraulic loopers (F1 to F3) Differential-tension loopers (F4 to F6) Roll quick-change equipment Laminar strip cooling Two hydraulic coilers with Automatic Step Control HOT STRIP MILL WITH "ECO" COMPONENTS In June 2013 Baosteel Zhanjiang Iron & Steel awarded us an order for the supply of a 2,250 mm hot strip mill ...
Applications include: Steel: Slab caster slide gates / hot mill roll force and roll balance / pickle line and welders / cold rolling mill / annealing / tin rolling / automatic gage control (AGC) hydraulics Aluminum: Cast houses / hot rolling mills Seamless Tube & Pipe: Casting / rotary furnace / hot rolling lines / heat treating Engine and Transmissions: Casting / heat-treating / …
When planning a lubrication system, ambient conditions must be determined irst The number of lubrication points, back pressures at the lubrication points, operating temperature range, the feed pump's drive energy, control and monitoring etc must be deined correctly Attention also must be given to bearing or lubrication point informa-
The combination of roll gap cooling, roll gap lubrication and improved exit side cooling systems reduces the roll temperature. This results in a thinner oxide layer on the roll surface with less work roll peeling for consequence. Lubrication inside the roll gap minimizes friction, thereby enabling rolling force reduction of 20 % to 30 %.
Speciality lubricant for rolling mills. Application. Machine system. Machine element. Recommended product. Hot Rolling mill. Reheating furnace door lifting. Roller chain. WOLFRAKOTE TOP FLUID.
The use of roll gap lubrication system in combination with work roll cooling and antipeeling systems in hot rolling mills is discussed. The roll gap …
Williams introduces industrial results concerning hot strip mill gap lubrication, indicating that the presence of lubricants between the roll and the strip reduces friction and therefore increases roll life, improves strip surface quality and reduces power consumption. Williams points out that according to various European, American and ...
Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills. Cooling and lubricating is furthermore essential for the plateout for cold rolled strip.
The Hot Strip Mill represents the most productive solution for flat rolled products. It provides the highest level of productivity together with a large product mix and outstanding quality. Yearly productivity of Hot Strip Mills can vary from 2 to 6 Mtpy, …
For over 45 years, Filtertech has serviced the ferrous and non-ferrous rolling industry by providing state-of-the-art filtration and waste disposal systems for every facet of the process from hot cold rolling, temper mills, morg oil systems, waste coolant disposal, alkaline cleaning, deionized water make-up, as well as aluminum roll oil recycling...
Roll Cooling Our experts can help you improve roll cooling consistency and identify / solve related problems quickly in your hot rolling mill. We provide products and services to help optimize your roll cooling process.
Hot strip mills. You'll appreciate X-Roll ® hot strip mills from SMS group as all-round plants for high-quality hot strip. They are designed to produce flat steel from thin strip with a minimum final gauge of 1.2 millimeters to high-strength pipe steels up to 25.4 millimeters thick, including stainless steel grades.
SKF's range of solutions for hot rolling mills can help you meet the demands of increased productivity and quality in cost-effective ways. Our specialized bearings can handle the high loads and harsh environments, while our seals and automatic lubrication solutions let you cut the costs and environmental impact associated with use and ...
thickness tolerances and surface quality. Effective lubrication systems are crucial for achieving these goals. For that reason, the effect and the characteristics of the lubricating material toward product surface and friction is of great importance. In …
Siemens VAI work-roll lubrication is designed to reduce roll wear and friction of the work rolls in the finishing mill stands. The application of work-roll lubrication in existing hot-strip mills leads to cost reductions (roll material, energy), improves product quality, boosts product diversity and increases mill availability. Detailed view of ...
The inter-stand facilities are vitally important for the production of hot rolled strip with top surface quality. Important equipment includes (i) entry and exit guides, (ii) work roll cooling system, (iii) anti peeling device, (iv) roll gap lubrication system, and (v) inter-stand cooling and descaling systems.
Spraying Systems Co. offers a wide range of superior nozzles and headers for descaling and cooling — along with local steel experts to assist you with product selection, cooling calculations, specialized testing and more. For decades we've helped hot rolling mills around the world improve steel quality, reduce downtime and operating costs ...