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pictures of hot strip mills with back up roll:

Highest performing Hot Strip Mills Primetals Technologies

The demand for hot rolled strip is growing in multiple ways. To remain competitive, new and existing mills must meet this challenge in the best possible way. The production of hot strip is a key element of steel production. Since close to half of all steel produced is hot-rolled to strip, mills require maximum throughput and availability

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Hot Strip Mill an overview ScienceDirect Topics

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 3.5 Friction and Wear. Work rolls in hot strip mills wear due to friction between the roll surface and hot strip. (Back-up rolls wear as well, but under pressure with elastic deformation, the friction is much less, except for the high work roll roughness in the last stand of a sheet rolling tandem cold mill).

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The Hot Rolling Process

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.

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Hot Strip Mill Rolls-Changzhou Kaida Heavy Kaida Roll

一、Rolls for Hot Plate&Strip Mills . Vertical Mill 2HI Rough Mill 4HI Rough Mill 7 Stand 4HI Finishing Mill . 1. Hot Strip Continuous Mills, CSP. Vertical Roll: Rough Mill WR: 7 Stand 4HI Finish Mill WR Back up Roll: 2HI Rough Mill: AS HWD : 4HI Rough Mill: HiNiCr HiCrI HiCrS: HiNiCr HiCrI: ASl AD GTAD: DP Cast Steel Static Cast Steel

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Rolling of hot strip and strip defects IspatGuru

1/14/2017· Gauge control in hot strip rolling mills is achieved through measurement of strip thickness using x-ray gauge and adjusting the strip tension using feedback control system. During the rolling of hot strips, the hot strip is coiled to handle its increasing length due to a reduction of thickness.

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Products › Flat › Steckel Mills A unique combination of

Steckel mills are the proven solution for coil production up to 1.5 Mtpy and at the same time represent the most cost-effective choice within the large hot rolling mill family. Recent innovative solutions applied to modern Steckel mills make it possible to achieve high-quality strip that is comparable to the products of traditional hot rolling

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Hot Strip Mill Rolls-Changzhou Kaida Heavy Kaida Roll

一、Rolls for Hot Plate&Strip Mills . Vertical Mill 2HI Rough Mill 4HI Rough Mill 7 Stand 4HI Finishing Mill . 1. Hot Strip Continuous Mills, CSP. Vertical Roll: Rough Mill WR: 7 Stand 4HI Finish Mill WR Back up Roll: 2HI Rough Mill: AS HWD : 4HI Rough Mill: HiNiCr HiCrI HiCrS: HiNiCr HiCrI: ASl AD GTAD: DP Cast Steel Static Cast Steel

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Danieli Wean United Flat Product Rolling Mills and Strip

Hot Strip Mills. 207. QSP Quick work and back-up roll changhing for rolling mills. Q-MPE. Mechanical properties estimator for hot rolled flat products. Q-HEAT. Induction heating system for long and flat products. Q-FLOW+ . Advanced laminar cooling system for hot strip mills. EXSTREAM.

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METALLURGICAL APPLICATION TO WORK AND BACK UP

11/23/1988· Requirements of Rolling Mills should be considered: Rolls cost: It represents the 5% of the direct cost of a strip sheet rolling mill and 10% including the operation of the roll workshop. Cost of no-quality: The inlaid calamine because of the roll represents 150 000 € up to 450 000 € /year depending on the type of Hot Strip Rolling Mill.

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Products › Flat › Steckel Mills A unique combination of

Steckel mills are the proven solution for coil production up to 1.5 Mtpy and at the same time represent the most cost-effective choice within the large hot rolling mill family. Recent innovative solutions applied to modern Steckel mills make it possible to achieve high-quality strip that is comparable to the products of traditional hot rolling

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4-High Rolling Mills Metal Processing Machinery

Tags Rolling Mills; 4-High Rolling Mills. Four-high rolling mills can be put in tandem, two to seven stands, instead of a reversing mill. They can be equipped with load cells to tell the separating force and hydraulic or mechanical screw downs, depending if it is hot or cold rolling.

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Rolling (metalworking) Wikipedia

Coilers and uncoilers to unroll and roll up coils of metal; Slabs are the feed material for hot strip mills or plate mills and blooms are rolled to billets in a billet mill or large sections in a structural mill. The output from a strip mill is coiled and, subsequently, used as the feed for a cold rolling

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rolls for rolling mill

2/24/2017· The diameter of roll barrel is 350~1400mm. The material of back-up roll includes 60CrMo, 9Cr2Mo, 86CrMoV7, 70Cr3Mo etc. The main types of mills: back-up roll of 650mm Mill, 900mm Mill, 1050mm Mill, 1250mm Mill, 1450mm Mill.

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SAFETY GUIDELINES FOR IRON & STEEL SECTOR

Rolling mills consists of different type of Mills based on the desired products namely: A. Long Product Mill a) Light and Medium Merchant Mill/ Bar Mill. b) Wire rod Mill. c) Medium merchant structural mill/ Structural Mill. B. Flat Product Mill a) Plate Mill b) Hot Strip Mill A. Long Product Mill

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Lubrication of hot-strip-mill rolls ScienceDirect

2/1/1973· Later, the oil was dispersed in water and applied to the exit side back-up roll/work roll bite through supplementary headers. Oil usage was varied between 3 and 70 grammes per tonne of steel rolled. It was estimated that up to a 15% reduction in roll wear was achieved but no significant change in strip surface finish was experienced.

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Rolling of Metals

•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 •Power per roll (SI units)= pFLN / 60,000 kW

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