The performance of a conventional 4-High mill is not satisfactory in these requirements. A new 6-High cold rolling mill (hereinafter HC-MILL) has been developed in order to solve these shape problems. ... Accordingly, in actual operation of a 4-High mill, even if the work roll crown and the work roll bending method are used jointly, the range ...
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WhatsApp: +86 18221755073Cold rolling mill intermediate Roll applies to high precision 6-Hi (as well as a few 8-Hi) mill, named from working location between work roll and back-up roll, mainly used to …
WhatsApp: +86 18221755073The 6 Hi HC cold rolling mill unit is the most cold rolling mill for common carbon steel. 6 Hi HC cold rolling mill can roll thinner gauge than 4 Hi cold rolling mill does for having smaller work rolls. The 6 Hi HC cold rolling mill unit is also …
WhatsApp: +86 18221755073The scale of the cold rolling production line is a production of 225 thousand tons of cold rolled steel coils per year. It adopts the UCM-type single-stand 6-roll reversible cold rolling mill. The work roll of the rolling mill is equipped with positive and negative bending. The intermediate roll is equipped with positive bending and twitch.
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WhatsApp: +86 18221755073The 1250mm 6Hi Cold Rolling Mill is used to roll 1.5-4.0mm(thick) *650-1050mm (width) hot rolled coil after pickling or rerolled steel after annealing into 0.13-1.5mm cold rolled steel coil. Share. Inquire Now None. PRODUCTS DETAILS. ... Sales Performance Table of 6 Hi Cold Rolling Mill .
WhatsApp: +86 18221755073Name Type of material Hardness Depth of hardness Hardness deviation Intermediate roll 2%Cr, 3%Cr, 5%Cr SHSS 70-85 HSD 8-50mm Within 2 HSD Back-up Roll Big-sized Back-up Roll Forged steel back-up roll is mainly used in 4-Hi mill and 6-Hi mill. The diameter of roll barrel is 350~1400mm.
WhatsApp: +86 182217550731250mm 6 Hi reversible cold rolling mill The 1250mm 6Hi Cold Rolling Mill is used to roll 1.5-4.0mm(thick) *650-1050mm (width) hot rolled coil after pickling or rerolled steel after annealing …
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WhatsApp: +86 18221755073On top of the features of a 6-High Mill is that it has a more complex adjustment range to setup the roll gap profile with the additional bending and shifting functions of the intermediate rolls. This allows for an adaption to a larger variation of incoming product widths and profiles, more dynamic flatness adjustment range, and highest level of ...
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WhatsApp: +86 18221755073Due to their excellent features, Sundwig S6-high (supported 6-high) rolling mills are mainly used for cold rolling of a wide range of strip hardnesses, widths, and gauges, either in processing lines as high-capacity reduction mills or offline as reversing reduction mills. ... More special features of the S6-high mill, like the large range of ...
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WhatsApp: +86 18221755073The Sundwig 4-high mill is equipped with positive and negative work roll bending in order to influence the shape and the flatness of the strip. Either the work roll or the back-up roll is driven, depending on customer requirements. The diameter of the 4-high work rolls amounts to approximately 1:4 in relation to the barrel length.
WhatsApp: +86 182217550736 – HI MILL * The word Hi' 'is a Greek word which means 'Roll', and thus 6 – HI MILL is a cold rolling reversible mill having six rolls; • A pair of Work Rolls (WR),...
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WhatsApp: +86 18221755073In response to the ever-increasing demand from the automotive industry for thinner and stronger cold rolled strip steels, ANDRITZ Sundwig developed the S6-high system. This patented …
WhatsApp: +86 18221755073In order to solve the problem of flatness defects and roll spalling caused by rolling thin gauge strip in the 1 500 mm UCM(6-high middle rolls shift type HC-mill with middle roll bender) cold rolling mill,the 3D elastic deformation finite element model for roll stacks of 6-hi rolling mill was built by ANSYS software package,and a new intermediate roll contour was designed by considering …
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WhatsApp: +86 18221755073Intermediate roll shifting (IRS) is widely used for improving the strip shape in the six-high tandem cold mill, but most related studies are limited to a single stand.
WhatsApp: +86 18221755073The rolls can be ground to an hourglass shape. A 6-high mill also allows for substantial roll shape, depending upon the horizontal movement of the rolls. Another advantage of a 6-high mill is a larger work roll which can transmit considerable torque and allow for high speeds up …
WhatsApp: +86 18221755073all ANDRITZ rolling mills. With the roll-changing unit, the work rolls, driven inter-mediate rolls, and side support cartridges in the S6-high mill can be changed automatically, preventing roll …
WhatsApp: +86 18221755073Product Details. Six roller (6-hi) cold rolling mill introduction. 6-Hi rolling mill is especially suitable for high precision rolling at high rolling speed, can give a variety of finished thicknesses, reducing steel coil strip from 3mm to 0.10mm with width ranging from 500 to 1250mm.Different materials and different states of metal plates require different rolling processes, the cold rolled ...
WhatsApp: +86 18221755073PROVIDING USED & BUILT TO ORDER METAL MACHINERY! Six-high rolling mills are the similar to 4-high rolling mills however, they have work rolls, intermediate rolls, and back up …
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WhatsApp: +86 18221755073This document provides a 10-step overview of the cold rolling process for steel in a 4 Hi mill. The key steps include: 1) Pickling the hot rolled coil to remove impurities, 2) Water washing, 3) Applying a rust-protective emulsion, 4) Sizing coils to an ideal diameter for rolling, 5) Cold rolling the steel through multiple passes to reduce thickness, 6) Annealing to improve …
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