قائمة الطعام
Cold rolling mill with tension bridle US5701774A (en) * : : Kabushiki Kaisha Toshiba: Control device for a continuous hot-rolling mill US5921127A (en) * : : Nippon Steel Corporation: Hot strip rolling mill
Steel rolling mills, steel melting furnaces, steel galvanizing lines Tension Leveling lines, Tension Leveling bridle sections, Tension Leveling flex-roll sections. +1 (336) 597-2370
A cold rolling mill and method for cold rolling is disclosed. The cold rolling mill includes at least two tandem four-high reversing mills with at least one tension reel on each side of the tandem mills. Bridle roll units may be positioned on each side of the tandem, reversing mills to allow the cold rolling mill to be utilized as a temper mill.
Dual Center Position Control (CPC) in operation at the entry sides of both the side trimmer and tandem cold mill (TCM) ensures an accurate center positioning of incoming strip. Furthermore, immediately prior to the No. 1 mill stand, a three-roll bridle roll restrains the strip and feeds it securely into the roll bite.
Entry Tension Bridle: 4-roll horizontal type; 220 kW DC motor driving a mechanical differential; 1225 mm diam x 1524 mm face rolls, Rubber coated; Rolling Mill: BWG, 2-Hi skinpass mill; Flex-Roll Leveler: BWG 6-Hi cartridge type; Work Rolls - 45 mm diam x 1494 mm face; Backup Rolls - 35 mm diam x 1494 mm face; Exit Tension Bridle: 4-roll ...
At the entry of the tandem cold mill, there is a system to centre the incoming strip, removing all the errors accumulated in the exit looper with ± 5 mm accuracy. Then, a four-roll bridle is used to control the entry mill tension, filtering all the incoming tension noise from the exit looper with ±2% in steady state, ±4% of pre-set value.
Cold rolling mill with tension bridle: : Muryn et al. 72/229: ... said mill having a first tension reel disposed upstream of a first roll stand and a second tension reel disposed downstream of a second roll stand, with two or more passes of an elongated strip through the mill, comprising threading the strip to be rolled through the ...
Cold rolling mill with tension bridle JP2845087B2 (en) : Continuous casting hot rolling equipment RU2177844C2 (en) : Plant for making hot rolled flat products US4384468A (en) : Method and apparatus for coiling strip on a hot mill ...
Reducing the roll gap increases the roll pressure to p3. Gage control in multiple rolling mills is achieved through measurement of strip thickness using x-ray gage and adjusting the strip tension using feedback control system. 1.8 Rolling defects: Mill spring is a defect in which the rolled sheet is thicker than the required thickness because,
Bridle roll for rolling mill pdf allemeerschvanparysbe. cold rolling mill with tension bridle Carolina Steel Tension bridles for a cold rolling reducing mill are provided The reducing mill reduces the thickness of a metal strip passing through the reducing mill. Get Price ANDRITZ to supply production lines to Nucor Steel Arkansas, Get price.
Tension leveler with high-stiffness leveler frame and roll cassettes. Excellent elongation for effective descaling and strip-shape correction. Increases pickling speed and efficiency to enable effective production of higher steel grades such as AHSS. Available in several bridle roll-drive system configurations with wide range of tension capacities.
Bridle Roll 1.The paper is subjected to euler formula and IBA analogical technology researching analyzes on the bridle roll Sliding for the cold rolling mill,according analyzes in detail the tension Bridle Roll's working status and forced,finding the bridle slide main cause is tension machine and tension fixture unnormally in the field,making according measures to …
Tension bridles for a cold rolling reducing mill are provided. The reducing mill reduces the thickness of a metal strip passing through the reducing mill.
Skinpass Mill and Tension Leveler Eiji Mukae JP Steel Plantech Co. 3-1 Kinko-cho, Kanagawa-ku Yokohama 221-0056 JAPAN Tel: +81-45-440-5975 Fax: +81-45-440-5867 E-mail: [email protected] 1. Introduction Generally, the products produced in hot rolling mills and cold rolling mills
Tension Bridle Roll System. Related products. Cold-Rolling Mill Machine. High Precision Cold Rolled Strip Coil. Strip Steel Processing Machine. MAIN PRODUCTS. High-Precision Wire/Belt/Foil Rolling Mill; Cold Rolling Mill Machine; Precision Paper Dispensing Take-up; Roller Drawing Die; High Precision Wire Straightener Sale; Subsystem ...
This allows substantial tension at the rolling mill and yet delivers low tension to the recoiler. This means the coil will be wound under the exact required low tension. Bridle rolls in a rolling mill are becoming more common to control tension at the final tension reel or recoiler.
POWER IN ROLLING Power is applied to the rolling mill by applying Torque to the rolls and by using roll strip tension.The total rolling load is distributed over the arc of contact. However, the total rolling load can be assumed to be concentrated at point along the arc of contact ata distance 'a' from the line of centers of the rolls.
The invention relates to a Steckel hot rolling mill comprising at least one reversing roll stand (1) as well as coilers (6, 7) which are positioned upstream and downstream and present torque-controlled drives. The aim of the invention is to improve such a hot rolling mill in such a way that it optimally counteracts variations in tension and/or mass flow caused by changes in process …
If the mill rolls 800,000 tons per year, it runs at an average production rate of 114.16 tons/hour. If the utilization can be improved by 1 %, the available rolling hours is 365 x 24 x 0.81 = 7096.6, creating 87.6 extra rolling hours. At 114.16 tons/hour that is an additional 10,000 tons can be rolled.
The present invention is to provide a tandem cold rolling method conducted by a tandem cold rolling mill, the number of rolling stands of which is not less than 4, wherein a rolling tension, the intensity of which is not lower than 30%, preferably not lower than 40% of the deformation resistance of material to be rolled, is given at least by the final rolling stand.
BTU was founded in 1985 by Norbert Umlauf who had developed a technology capable of flexibly building up or reducing the back-tension of strip in strip processing lines while adjusting strip travel in a highly precise manner. That technology helped operators of strip processing lines in cold rolling mills and steel service centers to increase ...
The two Lines will be connected by a coil transfer system and will allow the coils previously rolled in MINO's Hot & Cold Rolling Mills to undergo a complete heat treatment, tension levelling, pickling and passivation. ... The latter is achieved with a combination of large diameter bridle rolls, strip centering units properly located along ...
A broad range of solutions is offered for metallic coating of both hot-rolled and cold-rolled strip in continuous hot-dip coating lines. This value-added, high-quality material is extensively used in construction, in appliances, in automotive and in packaging applications as a well-proven and time-tested solution for corrosion protection.
What is claimed is: 1. A tandem cold rolling method of cold-rolling a sheet by a tandem cold rolling mill having an inlet and an exit, the number of rolling stands of which is not less than 4, comprising the step of conducting rolling at least in the final rolling stand while a rolling tension, the intensity of which is not less than 30% of the deformation resistance of …
Flat Rolling. Steel Plantech, based on our advanced technological strength backed by our rich experience, provides plate levelers, cold rolling mills and plate shears equipped with our own innovative and unique technologies, thereby helping our customers realize cost reduction and the production of high quality products. Cold Mill (TCM,CRM)
The line also includes a tension bridle consisting of two or more bridle rolls 21 and 21a at the entry side of mill 23, and a tension bridle consisting of two or more bridle rolls 25 and 25a at the exit side of mill 23. ... In FIG. 3, the side supported 6-high cold rolling mill (designated 23a), together with pass line rollers 24 and 8 and ...
Cold rolling mill. Feature. Identification. Comparison. Calculating table : Tension Bridle Roll unit: Pay-off Reel: Steering Roll unit: Tension Reel: Looper Car Winch Drive unit: Dividing Shear: Looper Car unit: Entry shear: Deflector Pinch Roll unit:
Too much tension, that is too little force, can cause centre buckle (depending on the Crown of the Rolls). The tension stress is 30% to 50% of the yield stress for Cold Mills and often higher in Hot Mills (which can result in heavy necking and even strip breaks). Sketch 5. The Force Distribution through the Roll Bite during Rolling
5. The reversing cold rolling mill of claim 4 wherein said first tension bridle and said second tension bridle each have roll contact with said metal strip on each flat surface of said metal strip. 6. The reversing cold rolling mill of claim 4 wherein the back-up rolls of said first and final reducing stands are motor driven rolls. 7.
PURPOSE: To provide a bridle roll with which a high coefficient of friction between a roll and a strip is ensured and the high coefficient of friction is maintained for a long term even when rolling oil, liquid chemical, water, etc., are stuck on a strip in the bridle roll for imparting tension, which is used in a cold rolling line, surface treating line or the like of an iron making process.
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