raw mill tension system

Santanu Chakraborty, in Treatise on Process Metallurgy: Industrial Processes, 2014. 6.5 Rolling Mills. The rolling mill facilities were designed to meet the production requirement of Table 1.The rolling mills complex was proposed to include a light and medium merchant mill with breakdown group of stands for rolling blooms into billets and an intermediate in-line heat compensating furnace; a ...

The system uses load cells type PW15iA from HBM. Accuracy of load cells. No matter what application a load cell is used in, accuracy plays an extremely important role. Load cells are available with different maximum capacities (the maximum capacity designates the maximum intended load) and accuracy classes. Strain gauge technology is primarily ...

System Tension (Machine) Output / tension is influenced only by operator adjustment. If the operator walks away, the control output does not change Therefore, on unwind/rewind, tension will change as the roll diameter changes Manual Systems. Example: Driving a car and as you go up a hill, you

With name of Pamor Spinning Mills, this new production unit possesses exceptional amount of 90.000 spindles. Pamor Spinning Mills is designed to be able to produce high quality yarns with effective production cost in our mind. This requires our management to always prioritize on the excellent production quality, in which aligned with our motto ...

It is a page of the list of solutions of Steel Plantech.Design, manufacturing, installation, sales and after-sales servicing of steelmaking machinery, non-ferrous metal producing machinery, and coke-making machinery as well as related equipment for use in Japan and overseas

the case in roughing mill and intermediate mill areas. A change in the tension of the rolled material has a linear relationship a change on the torque of main stand motor, hence the motor torque of motor also indirectly measures the tension of rolled material. The minimum tension control system adopts the torque memorizing method to detect ...

The new mill control at Dojran Steel consits of a cascade system based on the R-factor simplifies the setup and operator control. Tension and loop control along the mill reduces dimensional defects. Advanced tracking systems and shear cut control optimize …

Jun 19, 2017· The main methods of controlling the tension in the mill is with a tension free rolling speed control system and manually monitoring the current drawn by each motor as the bar proceeds through the mill. A looper table can be used to aid in keeping the bar tension free between stands.

A gauge and tension control system for a tandem mill comprises a delivered strip thickness deviation calculating unit for detecting output strip thickness at each of rolling stands, a tension calculating unit for arithmetically determining interstand tensions between two adjacent rolling stands on the basis of armature currents of drive motors and rolling loads at every rolling stand, a memory ...

cooling system. Problems of this kind can never really be calculated but they have a detrimental effect on all rolling schedules including stresses in the roll. As regards "abnormal" rolling conditions - which are more or less very "normal" for rolling mills - roll damage often occurs with consequences for the mill and the rolled product.

Internal Loadings:The internal torque developed in segments AB and BC of the pipe can be determined by writing the moment equation of equilibrium about the x axis by referring to their respective free - body diagrams shown in Figs. a and b. And

(i) Raw mill and cement mill drives (ii) Kiln drives (iii) Crusher drives (iv) Waste gas fan drives and (v) Compressor drives etc. The starting torque for the mill motors for large cement plants is limited to 125% of the full-load torque and the pull- out torque is restricted to nearly 240% of the full-load torque.

Introduction to Tensile Testing / 5 Fig. 6 The low-strain region of the stress-strain curve for a ductile material tic contribution and e e is the elastic contribution (and still related to the stress by Eq 3). It is tempting to define an elastic limit as the stress at which plastic deformation first occurs

Once within specification, AGC optimises the mill speed by adjustment of tension, load or gap. At the end of the coil, Auto-Slowdown ensures the product remains in specification for as long as possible and brings the mill to a halt with minimum amount of material left on the coil drum.

Attribution Non-Commercial (BY-NC) Available Formats. Download as PPT, PDF, TXT or read online from Scribd. Flag for inappropriate content. Download now. Save Save Bab 2 Raw Mill System dg VRM.ppt For Later. 0 ratings. 0% found this document useful (0 votes) 470 views 80 pages.

Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. The improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand tension. This paper focuses on interstand tension control problem in 5-stand tandem cold rolling mills.

ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.

of cold rolling mill automation. This new system, as illustrated in, consists of: ... Tension reel tension reference Roll and coil errors Other dynamic disturbances ... Raw material and product properties as well as mill constraints are considered.

Procure Maruichi spec HRC, raw materials specially designed for Maruichi group, from Japanese steel manufacturers to ensure that final products will be top-notch. Materials are then stored and managed in the system to maintain the traceability throughout the production process. (Raw material Thickness : …

Atlantic can incorporate a labeling system with your roll wrap equipment and also manage your label supply and inventory. Our ability to provide labeling systems and labels lets our paper mill customers rely on Atlantic for the materials and equipment needed throughout the full packaging process. Trust Atlantic to be your packaging partner.

The raw mill contains two chambers, separated by diaphragm, namely a drying chamber and a grinding chamber. The hot gases coming from a preheater (preheater / kiln system) enter the mill and are used in raw mills for drying. Then the drying materials enter the grinding chamber of raw mills for fine grinding.

Mill Lubrication System 1. OBJECTIVES: To identify the definition and importance of a hydraulic lubrication system. To be familiarized with the lubricant and equipment used in the system. To understand the process and various design of Mill lubrication system. To identify some problems encountered by the system, and formulate some recommendation to help fix the problems.

A precision wire rolling mill is usually composed of stringer, straightener, horizontal two-high, vertical two-high, universal four-high, tension device, degreasing and cleaning device, traction device, take-up machine, lubrication system, cooling system, control system and on-line measurement system.

Dec 05, 2017· During the steelmaking process, while the molten steel is still in the ladle and before it is poured, the steel must be degassed in order to: (1) reduce/eliminate dissolved gases, especially hydrogen and nitrogen; (2) reduce dissolved carbon (to improve ductility); and (3) to promote preferential oxidation of dissolved carbon (over chromium) when refining stainless steel grades. In the steel ...

Hydraulic System For Fls Raw Mill Vertical roller mill hydraulic system of the proper use the grinding force during operation, the roller basic mill Read more. vertical raw mill function India. Optimization of Vertical Raw Mill Operation media mills work with a similar principle but use a vertical pin agitatorView more. hydraulic accumulator in ...

Sometimes in metal rolling practice, tension, (force), is applied to a work piece as it is being rolled. This tension may be applied to the front, (front tension), the back, (back tension), or both sides. This technique will assist the forces necessary to form the work, and is usually used on hard to roll materials.

reversed stress using the R.R. Moore type of machine and specimen. (c) Average of tension and compression moduli. Compression modulus is about 2% greater than tension modulus. (d) 1350-O wire will have an elongation of approximately 23% in 10 in. (e) 1350-H19 wire will have an elongation of approximately 11⁄ 2% in 10 in. (f) Tempers

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Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control and meets demand of ...