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bruise on hotstrip mill finishing mill rolls

What Is Steel Mill Roll Bruising

Bruise On Hotstrip Mill Finishing Mill Rolls . What is steel mill roll bruising Bruise On Hotstrip Mill Finishing Mill Rolls. The Hot Rolling Process The Hot Mill rolls slabs weighing up to 30 tons between 30 and 74 fragile as it is rolled and tension between the finishing mill what is steel mill roll bruising ...


Secondary scale on hot strip and the impact on wear is another issue. Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later. K. H. Schröder July 2003 K. H. Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS


conducted in field by Innse Cilindri on work rolls of finishing stands of hot strip mills. The correct interpretation of the eddy current signals and a good calibration of the automatic system have allowed, in many cases, a substantial optimisation of regrinding practices. Key Words: Work roll; Eddy current system; Bruise signal; Roll redressing.

Structural Investigations of HSS Rolls for Hot Strip Mill

familyof alloysused for cutting tools, which iscalled HSS rolls wasdeveloped and introduced into hot strip millsin Japan in the earlyni neties. Thisnew roll has spread all over the millsin Japan quite quickly, even over many mills such in Europe and USA, to replace the Hi-Cr rollsused in the first Finishing Stands.

How does it work: hot-strip rolling mill - YouTube

ThyssenKrupp Steel Europe spent a quarter of a million euros on renovating its hot-strip rolling mill in Duisburg. The animation shows how it all works.

what is steel mill roll bruising -

bruise on hotstrip mill finishing mill rolls - Xtek has manufactured forged and specialty rolling mill rolls through our extensive knowledge of rolling mill applications. Bar and Wire Rod Mill | …

Roll wear prediction model for finishing stands of hot ...

Roll wear in a hot strip mill (HSM) is a detrimental process, which progressively worsens the rolls. This necessitates replacement of the rolls after rolling a number of strips. Roll wear adversely affects the strip shape and the performance of a mill. It is important, therefore, to quantify roll wear during the rolling process.

Application of Portable Non-Destructive Testing ...

hot strip mill at Bokaro Steel Plant uses Indefinite Chill Double Poured (ICDP) work rolls with alloy cast iron shell and iron core in finishing stands and Hi-Cr work rolls in few intermediate stands. Back up rolls made of forged high carbon alloy steel (0.9 %C-1.5 Cr-V) were

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Highest performing Hot Strip Mills | Primetals Technologies

HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS 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 …

Hot Strip Mill Work Rolls - Union Electric Åkers

A core product of Union Electric Åkers Thousands of Hot Strip Mill Work Rolls come off of our production lines each year, making Union Electric Åkers one of the world's largest roll manufacturers of Hot Strip Mill Work Rolls. All our Hot Strip Mill Work Rolls are made using the vertical centrifugal casting method, ensuring high in-service integrity and premium performance results.

Roll Mark/Bruise from Hot Strip Mill - Mainline Metals

The sheet can whip/hit into the roll surface and mark it. As a result, the following coil produced through the hot strip mill will have these bruises on the head end. If the marks on the work rolls are light, the defect only bruises the next coils surface and eventually wears off the rolls …

Rolling of steel in Hot Strip Mill – IspatGuru

After exiting the finishing mills, the strip is carried down by a large number of individually-driven rolls through four to 12 banks of low-pressure, high-volume water sprays that cool the red-hot strip to a specified coiling temperature between 400 deg C and 900 deg C and into down coilers.

The Hot Rolling Process - California Steel

Finishing CSI's Hot Strip Mill includes six finishing mills, which reduce the thickness of the transfer bar down to the gauge required by the customer or the next process. The rolling speed is set to allow the last stand to perform the final reduction at the finishing temperature, between 1500° to