descaling system for hot rolling mill


PAPER - Descaling system optimization in a Compact …

Descaling, Compact Endless Cast and Rolling Mill, CEM, Nozzle, Spray Energy 1. Introduction Hot rolling predetermines the surface quality of the final product significantly. In order to create ideal conditions for an optimum rolling process accurate descaling is essential.

Get More

US3518736A - Rolling mill descaling device - Google Patents

Apparatus for descaling hot strip in a rolling mill DE19535789C2 (en) * : : Hermetik Hydraulik Ab: Device for descaling semi-finished products DE19925809A1 (en) * : : Sms Demag Ag: Descaling process for a metal strip and descaling arrangement corresponding to it

Get More

Hot Rolling Spray Solutions | Spraying Systems Co.

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 ...

Get More

Analysis of the fatigue failure of tee pieces forming part ...

Aug 01, 1996· The header consists of a hot forged entry tee with welded pipe extensions containing the outlet nozzles as shown in Fig. 1. The pressure in the system is reduced between each descaling operation resulting in the header and tee being subjected to a pressure cycle once every 3 minutes. failures of the entry tees have occurred in the form of a ...

Get More

Scale formation and its removal in Hot Rolling process

atmosphere and the exposure time. There are two kinds of scales relevant in rolling mills – sticky and dry scales. Sticky scales can be removed most effectively by use of high pressure water jets upto 450 bar. Dry scales can be removed from the surface by application of descaling systems with low distances of the descaling nozzle to the material.

Get More

Efficient and effective descaling in the Steel industry

May 08, 2014· Within the hot rolling mill, descaling equipment is placed before the mill or after the mill stand and it takes the low pressure water from the plant water supply, creates high pressure water, which is sprayed onto the surface of the hot steel to remove the scale.

Get More

PAPER - Descaling system optimization in a Compact Endless ...

Descaling, Compact Endless Cast and Rolling Mill, CEM, Nozzle, Spray Energy 1. Introduction Hot rolling predetermines the surface quality of the final product significantly. In order to create ideal conditions for an optimum rolling process accurate descaling is essential.

Get More

OF EXISTING HYDRO MECHANICAL DESCALING SYSTEMS IN HOT ...

Data Collection and Benchmarking The complex process of hydro mechanical descaling requires a thorough understanding of the process technology and the environment of a hot rolling mill. Tools such as computer simulation models, a standardized and complete check list (Fig. 1) for data collection and well developed audit procedures are essential ...

Get More

Descaling | Lechler

Jun 01, 2016· Descaling: Audits of existing hydro-mechanical descaling systems in hot rolling mills as a method to enhance product quality Contribution paper for The Iron & Steel Technology Conference and Exposition 2005, Charlotte N.C., USA – 05/2005

Get More

The water descaling system uses high pressure descaling ...

UTPSL provide High Pressure Descaling System for removal of scale from hot metal before rolling in steel plants.Descaling Systems can be designed for Billet,Slab,Plate,Bloom Forging, Seamless Pipe,Profiles etc for Primary descaling

Get More

Roughing Mill - an overview | ScienceDirect Topics

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 2.7 Generation III – Coil Box Hot Strip Mills. In the 1970s, Stelco of Canada developed the hot coil box designed for installation in hot strip mills ahead of the finish mill for coiling the transfer bar from the roughing mill and uncoiling it into the finishing mill. The coil box reduced the distance between the roughing mill ...

Get More

Mechanical Processes for Descaling of Steel – IspatGuru

Sep 08, 2017· Mechanical Processes for Descaling of Steel. satyendra; September 8, 2017; 0 Comments ; abrasives, dry process, Mechanical descaling, Reverse bending, shot blasting, wet process,; Mechanical Processes for Descaling of Steel. Scale is the product of oxidation which takes place during hot rolling.

Get More

Nozzles for Hydromechanical Descaling NEW

slab hot rolling mill, plate mill or any other hot rolling mill and which offers the following benefits: n Remarkable increase of impact for better descaling n Better product surface quality due to higher impact n Reduction of descaling water flow rate possible n Potential of energy savings 2 3

Get More

The Hot Rolling Process - California Steel

heat for rolling. In part because further descaling is not particularly practical once finish rolling begins, the #2 Scale Breaker is the last opportunity to remove oxidation before the finished hot-rolled strip is coiled. Typically, the descaling system in the Hot Strip Mill is very effective at removing primary (from the furnace) and ...

Get More

Nozzles and Technology for Hydromechanical Descaling

Descaling nozzles for every hot rolling mill From primary descaling behind the reheating furnace to mill descaling in roughing mills up to descaling prior to the finishing mill, Lechler offers the right product for the application. This goes also for plate mills, narrow and wide hot strip mills as well as for bar, wire and structural mills.

Get More

12--3D-Evaluation Method for Descaling Capability of Hot ...

Descaling is a key process of hot rolling, especially when a good surface quality of the hot rolled products is demanded. Many studies have been made on the descaling technique of the hot strip mill (HSM) process (1-3). The key descaling parameters include the facility, the descaling performance and the descaling conditions (Figure 1).

Get More

Rolling of steel in Hot Strip Mill – IspatGuru

Dec 03, 2015· The main sub-processes are (i) heating of steel slabs in the reheating furnace, (ii) descaling of the heated slab and its sizing in sizing press, (iii) rolling in the roughing mill and secondary descaling, (iv) rolling in the finishing mill, (v) control cooling of the hot rolled strip and (vi) coiling of the rolled strip. Reheating of the slab.

Get More

Metal Descaling Spray Applications | Lechler US

Regarding hot rolling of steel, the quality of the rolled metal surfaces depends to a large extent on effective descaling. In order to avoid surface damage, iron oxide scale layers are therefore removed from the hot steel surface by high-pressure water spraying prior to the actual hot rolling process.

Get More

Technological packages › Flat › DESCALE-MASTER ‹ Danieli

DESCALE-MASTER. High-pressure water descaler. BENEFITS. Total descaling solutions for the entire rolling mill. Optimized and right-sized pumping stations. Designed to achieve maximum impact with optimal water and power. Maintenance and operator-friendly design. Reduced cost of operation. Totally scale-free products with reduced conversion costs.

Get More

Home - Engineering Commodity And Services

Descaling System For Hot Rolling Mill. Descaling Pump. Centrifugal Blower. CNG Compressor. Composite Rolls. Boiler Feed Pump. BB-Series Centrifugal Pump. BackUp Rolls. 4 Roll Mills. Vertically Suspended Pumps. Multi-Stage Centrifugal Pumps. Non Roll Products. Rolling Mill Rolls.

Get More

Buma | Hot Rolling

High Pressure Descaling before the Finishing Mill. For wear reduction and better water drain inside the descaler box we received the order to modernize the descaling unit on the entry side of the finishing mill. We reused the existing rotating descaling system.

Get More

Steel Descaling: Rotary Descaler Lines & Stationary ...

- 16 times more than conventional descaling systems, thus resulting in high performance uniform descaling. * 400bar high pressure stationary descalers 80-100mm away from steel result in impingement 0.8-1.3N/mm 2. * Conventional descalers available on market produce impingement about 0.5N/mm 2.

Get More

DESCALING TECHNOLOGY - SMSgroup

S MIE AG Hot Flat Rolling Mills 2 SMS Siemag does not treat descaling as an isolated measure but as an integral part of the process chain from continuous casting through hot and cold rolling up to final strip processing. Strips with an excellent surface quality can be produced only if well-tuned measures are taken in all process steps.

Get More