As a professional China Pinch Roll manufacturer, we are equipped with a famous factory and plant and engineers with decades experience, as well as providing with CCM Machine, TMT Rebar Mill, Wire Rod Mill, finishing mill, rolling mill stand, hot rolling mill, section rolling mill, sale, welcome to visit and check the process and layout with Xi'an Hani Tech Co., Ltd.

John G. Lenard, in Primer on Flat Rolling (Second Edition), 2014 Generation III – Coil Box Hot Strip Mills. In the 1970s, Stelco of Canada developed the hot coil box designed for installation in hot strip mills ahead of the finish mill for coiling the transfer bar from the roughing mill and uncoiling it into the finishing mill. The coil box reduced the distance between the roughing mill ...

Machine:4High Cold Mill Manufacturer:Achenbach Year of Manifact.:1958/1984 Condition: Still in operation. Description: Belt wrapper equipment 2x Thickness measurement noncontact 2x FAG FH46ME Isoth. Am241 Thickness measurement contact 2x Vollmer MG set Ward Leonard DC convertor Drive motor kV / 50Hz 960KW

Select Region and Country. Europe. Bulgaria English; Czech Republic Czech English; France French English; Germany German English; Italy Italian English; Poland English; Romania English; Spain Spanish English; United Kingdom English

 · The Hot Finish mill forms the strip to the final dimension. Not only does temperature plays a crucial part in these processes as it dictates the quality of the surface finish and sheet thickness, but so does speed. As I mentioned, the metal is subjected to tons of pressure and tensions of the high speed rolling .

TwoHigh: Generally, a 2HI mill is used for hot or cold breakdown and finishing of bar, sheet or strip. A wide range of sizes with separating force capacities from 10,000 lbs. ( MT) to over 3,000,000 lbs. (1360 MT) are available. ThreeHigh: A 3HI mill is an economic milling solution for the breakdown of rod and ingot. FourHigh: A 4HI mill may be used for finish rolling of thin gauge ...

The rolling process is shown in Fig. : Rolling is done both hot and cold. It is accomplishes in rolling mills. A rolling mill is a complex machine having two or more working rollers, supporting rollers, roll stands, drive motor, reducing gear, flywheel, coupling gear etc. Rollers may be plain or grooved depends upon the shape of rolled product.

A control system for a multistand hot strip reduction rolling mill having a DC motor drive for each stand and a speed regulator providing speed control for each DC drive through motor armature voltage control, said system comprising means for controlling the speed regulators so as to accelerate the mill from a first speed toward a higher run ...

Cold Mill. There are three rolling mills in the cold mill. They are the heavy cold mill, light cold mill and the 3stand tandem mill. They all perform the same task of rolling the hot band from the hot mill to the finished sheet thickness. The finished thickness is about the thickness of a sheet of paper.

 · The Hot Finish mill forms the strip to the final dimension. Not only does temperature plays a crucial part in these processes as it dictates the quality of the surface finish and sheet thickness, but so does speed. As I mentioned, the metal is subjected to tons .

Jul 01, 2021 · Rolling Mill modernization at Gerdau's Laisa site in Uruguay. The upgrade at Gerdau's Laisa site in Uruguay will be completed by AIC team in order to guarantee the highest production requirements set by the customer. The automation and DC Drives revamping will focus on improving obsolete reliance drives for the rolling mill to ABB DCS880.

Hot rolling is one of the most important manufacturing processes for flat rolled aluminium alloys as it allows the economical reduction of the DCcast slab to thin slab and sheet products. From an energy efficiency perspective, it is more economical to develop near net shape casting processes such as twin roll and twin belt casting, which can cast starting strips of 6–3 mm and 12–20 mm ...

SM Series spindles are customdesigned and used primarily on rolling mill drives ranging from heavy duty, hot reversing roughers to high speed cold mills. The spindles used on these drives are often limited by the minimum roll size,and they must handle high continuous loads. These spindles must also accommodate high misalignment angles due to ...

 · In a common dc bus, a single rectifier supplies power to the DC bus for all the DCAC inverters, rather than an individual rectifier in each AC drive. Dynamic braking or regeneration? Dynamic braking is used when energy needs to be dissipated periodically, and regeneration is generally preferred when the motor is frequently acting as a generator.

Our hotrolling mills are flexible and offers customised solutions supported by an indepth knowledge of technological process highperformance control systems reliable drive systems and a comprehensive understanding of hot rolling technology Powerful drives and reliable automation systems in combination with precise and flexible process...

Today dc motors are still found in many appliions as small as toys and disk drives or in large sizes to operate steel rolling mills and paper machines. DC Motor Equations. The magnitude of flux experienced is. F=BlI. Where, B Flux density due to flux produced by field windings. l Active length of the conductor. ICurrent passing through ...

The finishing group of stands of the 1700 SRS1 continuous mill of ArcelorMittal Temirtau JSC is characterized by high rolling speeds and high productivity. The use of DC motors as power sources for the main drives of the stands of highpower thyristor converter units significantly affects the nature of the operating modes of the power supply system and the quality of electricity on the buses ...

KeyWords: stretch reducing mill, hot reducing tubes, energy, drive motor . 1 Introduction . The hot reducing process (or reduction) is a specific hot rolling method for tubes [1]. Further on the calculation methodology of all power, energy and thermal parameters is shown, that intervene in the hot reducing

Hot Rolling Mill, Gear Box_Pinion Stand Rolling Mill Machinery Manufacturer offered by UGI Engineering Works Pvt. Ltd. from Kolkata, West Bengal, India. Chat Online; User Guide Durston. Instructions for Using and Maintaining DURSTON Rolling Mills (Including ideas of some techniques of jewellery manufacturing)

A four high rolling mill is used for the hot rolling of armor and other plates as well as cold rolling of plates, sheets and strips. 4: Tandem rolling mills: It is a set of two or three stands of roll .

WELCOME TO STEEFO ENGINEERING CORPORATION 'STEEFO ENGINEERING CORPORATION' is a well established India based steel rolling mills are serving the steel industry since 40 years and carries a great experience in the field of rolling mill manufacturing. Steefo is an exporter, consultant and manufacturer of Steel Rolling Mill Plants, their equipment, and components with in .