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Extensive range This market segment covers forged Work Rolls and Intermediate Rolls for use in Wide Cold Strip Mills of 2high, 4high, or 6high types, including reversing Reduction Mills, Tandem Mills, Double Reduction Mills, and Temper/Skin Pass Mills. Our Rolls can be supplied in a number of grades to suit various applications, materials, and rolling conditions.
Apr 23, 2012· Aluminum strip sheet band hot roll machine equipment casting processing forming platevbv Duration: 8:56. East China Metal 62,880 views. 8:56.
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 .
roll bite and in a typical Cold Tandem Mill, work roll temperatures normally fall in the range of 55oC – 70oC with strip recoil temperatures and interstand strip temperature rarely exceeding 160 oC depending on product. Roll Bite temperatures in slower heavily drafted stands can peak in the region of 300oC, diminishing with the
Mill Hot Strip Mill Work Roll and Back Up Roll Chock Bearing Design... Read more → Glunt Industries, Inc. is the most complete and largescale fabrication and machining center in North America.
In hot rolling mills, premature failure of rolls is a major concern as it adversely affects the mill operation as well as production. Analysis of failed roll materials and actual rolling conditions in service are therefore necessary to understand the roll failure mechanism and thereby improve the wear resistance and extend the service life of rolls.
In many hot strip mills the front stands of finishing group are working with rolls made in High Speed Steels. The success in using these rolls is strictly in connection with the mill technology but also with redressing methods applied in the turning shop. The HSS rolls show an impalpable wear and then the evaluation of roll surface
PHYSICAL METALLURGY OF A HSS MATERIAL FOR HOT ROLLING MILL ROLLS Jacqueline LECOMTEBECKERS 1 Jerome TCHOUFANG TCHUINDJANG 1 Eric PIRARD 2 JeanPierre BREYER 3 ABSTRACT High Speed Steel (HSS) cast rolls are used in front finishing stands of hot strip mills.
These backup rolls are larger and contact the back side of the smaller rolls. A fourhigh mill has four rolls, two small and two large. A cluster mill has more than 4 rolls, usually in three tiers. These types of mills are commonly used to hot roll wide plates, most cold rolling applications, and to roll foils.
Thermal crown development in hot strip mill work rolls and the role of spray cooling Ye, Xing 1990
WORLD CLASS ROLLS OF THE HIGHEST QUALITY FOR OVER 100 YEARS. The WHEMCO companies in Pennsylvania and Ohio, USA manufacture a full range of mill rolls – spun cast iron, cast steel and forged steel. Each of our roll manufacturing facilities has the expertise, equipment and experience to meet the most demanding rolling mill applications.
Abstract. Work rolls made of indefinite chill doublepoured (ICDP) iron are commonly used in the finishing trains of hotstrip mills (HSMs). In actual service, spalling, apart from other surface degeneration modes, constitutes a major mechanism of premature roll failures.
A study was conducted to better understand mechanisms of work roll degradation in hot strip mills (HSM). The investigations focused on thermal fatigue and oxidation along with influence of roll ...
Work rolls for the roughing stands of conventional HSM and Steckel mills. Microstructure SPECRA R SPECRA R High Speed Steel Union Electric Åkers These data are indicative and can be changed at any time without prior notice ... HOT STRIP MILL WORK ROLLS Hardness Range.
Work Rolls for Hot Strip Mills Gerdau Summit offers various roll options to meet the wide range of needs of rolling applications. Rolling mill rolls are made using a casting process, in which the outer layer of the roll (work layer) imparts wear resistance, while the inner layers (core) provide a combination of tenacity and mechanical ...
May 11, 2005· Work roll changes account for a large proportion of downtime in the operation of hot strip mills, resulting in financial penalties for the mill operators in terms of lost production and roll .
The modern hot strip mill is furnished with a tremendous amount of equipment from the reheat furnaces all the way down to the coiling equipment. Fortunately for both our ferrous and nonferrous customers alike Butech Bliss can provide equipment and technical services for nearly every element of the hot strip mill.
The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semifinished 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.
Hot Strip Mill Work Rolls account for a substantial part of our global output. And our Hot Strip Mill Work Rolls are made using the horizontal centrifugal casting method, ensuring high inservice integrity and premium performance results.
Mill Hot Strip Mill Work Roll and Back Up Roll Chock Bearing Design Improvements and Value Add Features. Glunt Industries was able to significantly lower the customer''s maintenance spend and improve production uptime by adopting a Total Cost of Ownership philosophy to regularly maintain the assets, identify innovative means to redesign chock components and introduce new materials/coatings to ...
Our finishing mill stands are equipped with CVC ® plus the world''s most successful technology package for strip profile, contour, and flatness control. This explains why more than 450 hot mill stands worldwide operate with CVC ® plus technology today.. Here''s what this technology can do for you: The system combines axial work roll shifting with special CVC ® grinding, a work roll bending ...
The mechanical rolling conditions in hot strip mills are precisely defined by various variables, which are taken directly froth the rolling schedule (separation force, torque. speed. strip thickness) or calculated from figures of the rolling schedule and dimensions of the mill (strip reduction, roll diameter etc.).
offers 2,376 hot strip mill work roll products. About 1% of these are steel round bars, 1% are adhesive tape. A wide variety of hot strip mill work roll options are available to you, There are 2,373 hot strip mill work roll suppliers, mainly located in Asia.
Work roll thermal expansion (crown) plays an important role in controlling strip profile and flatness of the strips. This can be done with a perfect and controllable cooling system which also takes care of the work roll against damage induced by fire cracking.
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