an inexpensive and accurate means of solving tension control problems. You will find tension control and winder applications in all industries. Constant tension winders are typically divided into two main categories: centerwinds and surface winds. The determining characteristic is the point of power input.

THE COLD rolling of steel strip on tandem mills requires the measurement and control of tension in the strip, and to meet this requirement the tensiometer herein described has been developed. The tensiometer produces a continuous indication of the tension in the strip during the rolling operation, and functions in connection with auxiliary control equipment to …

Therefore, ball load could be kept constant by using direct measurement. This article describes the Sensomag and presents some of the major improvements that can be achieved with it. Some other promising avenues are still to be explored. Keywords: Comminution, process control, process optimization, process instrumentation, online analysis.

TENSION CONTROL FOR STRIP MILLS Filed May 5, 1937 Alfred D. MCC/Guwy ratemecl Aug. 8, 1939 UNITED STATES PATENT OFFICE TENSION CONTROL FOR STRIP MILLS Application May 5, 1937, Serial No. 140,800 . 3 Claims. This invention relates to the art of rolling and, in particular, to the rolling of strip. ...

tension control to provide a constant pull of a web or wire through the machine in order to ensure consistent product quality. The tension is typically measured by means of a roller mounted on a dancer arm or a load cell. Dancers are generally used where space is not a problem, and load cells in applications where the space is limited.

Web Tension Measurement and Web Tension Control Systems. Block load cell PD 50 Electro-pneumatic converter DP 20 Flange load cell PD 21 Flange load cell PD 23 Flange load cell PD 25 Measuring amplifier CV 22 Measuring amplifier with display PA 62 Measuring roller BA 6 Sensor roller PD 30 Sensor roller PD 40 Web tension controller DC 62

TA500 EIP Tension Load Cell Amplifier / Signal Conditioner. TI17C & TI18C TrueTension™ Load Cell Amplifier / Signal Conditioner. TI22 iAMP2™ Inline Tension Load Cell Amplifier / Signal Conditioner. TI30 FireGuard™ 2 Intrinsically Safe Tension Load Cell Amplifier / Signal Conditioner. Tension Controllers.

A more reliable test is ASTM D5397 Appendix X1 – Single Point Notched Constant Tension Load test (SP-NCTL). Figure 2: ASTM D5397 Test Setup This test places a dumbbell shaped test specimen of HDPE with a central notch under a constant tensile load (30% of the yield strength) in a wetting agent at 50°C.

ABB's web tension system is the perfect choice for measuring web tension in paper mills or converting applications such as , laminating, coating, slipping, sheeting etc. Accurate web tension measurement is a prerequisite for keeping the web tension constant within the desired range, during both acceleration and deceleration.

Tension Control Bolts, TC Bolts or Twist Off Bolts are now the most popular choice in high-strength structural bolting and formally recognized by the AISC (American Institute of Steel Construction) and the RCSC (Research Council on Structural Connections) as an approved installation method. A Tension Control Bolts consists of 1 bolt, 1 nut and 1 washer, pre …

control by reduction the tension fluctuation by the torque disturbance in the down coiler process of hot strip mills. The proposed controller is a combination of an LTC to control the overload at load-on in the mandrel and an LBC to regulate the

The tension cord consists of a special polyester cord. Due to the special processing of the tension cord the optibelt RED POWER 3 wedge belt is very low-stretch and maintenance-free, so that re-tensioning is not necessary. The transverse fibre mixture on top of and under the tension cord guarantees a high dynamic load of the belt and

The Maxcess line of Load Cells can indicate tension in all types of unwinds, rewinds, and intermediate web processing applications. Contact Maxcess to learn more.

Tension control bolts (TCBs), are a type of high-grade bolt that can be preloaded by a tightening process that is carried out entirely at the threaded end (i.e. at the nut or spline end) of the bolt. Consequently, TCB's are usually distinguished by their round heads (rather than hexagonal heads) and splines.

Field of the Invention. [0003] This invention relates to control systems for controlling product tension between successive rolling units or roll stands in rod and bar mills. [0004] 2. Description of the Prior Art. [0005] An example of conventional rod mill installation is diagrammatically depicted in FIG. 1, where a multi-stand finishing block ...

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 ...

Sensors Web tension and control sensors are the input devices used with tension control systems and web guide systems. Nexen's web tension sensors include load cells for measuring the force applied to a sensor roller, roll diameter sensors, and …

ADVERTISEMENTS: In this article we will discuss about the applications of electric drives. 1. Machine Tool Drives: Many machine tools require a simple more or less constant speed drive. For this squirrel- cage induction motors together with simple manual controls are adequate. For transmission of power to cutting tools or work pieces at different finite […]

Load Cell tension transducer control is probably the most expensive approach to tension control in web processing. Load cells provide a means to directly sense the web tension and control either winder speed or torque. Implemented much like dancer controlled system, tension transducer feedback can give very accurate control and permit display ...

42" Wide Slitter With Min Gap & Cantilever-Supported Duplex Rewind. Double supported unwind with auto edge guide, pneumatic lay on roll, programmable constant tension through load cell feedback, diameter measurement and end of roll & web break control

The tension sensor is a bi-directional strip to which the strain gauges are applied, as a result of which an analogue measured signal proportional to the web tension is output. Area of use . Block load cells are used for web tension control in practically all production plants where web-type materials are processed or finished.

The inter-stand tension inferential control systems are used to stabilize the rolling motor torque. To stabilize the motor torque the electric drive system with …

without front and back tension p p µp µp σ σ x x + dσ x Stresses on Slab in Entry Zone Stresses on Slab in Exit Zone p p µp µp σ σ x x + dσ x Using slab analysis we can derive roll pressure distributions for the entry and exit zones as: h 0 and h b are the same thing 2tan1 ff RR H hh − φ = ()0 0 2 3 H H f h pYe h = µ − 2 3 H f f ...

Basics of Web Tension Control Summary Presenter: Darrell Whiteside, Sales Channel Manager – Tension Control Maxcess International This presentation is intended to take the mystery out of web tension control. It is intended for operators, designers and …

S Beam Load Cells use linear strain gages to measure bending stresses in precision machined steel and stainless-steel elements. Rated capacities range from 25 lbs. (11kg) to 40,000 lbs. (18 tonnes). Also referred to as Z Beams, Tension Cells and S Types, they are a versatile, cost effective and high-performance measurement solution for tension ...

Tension control - Torque is controlled automatically for smooth acceleration and deceleration, ensuring the material tension stays consistent. Dedicated brake sequencing system - Shortens the time from startup to brake opening and improves response at low speed. Falling load detection - Detects unexpected load dropping.

Tension Control Bolts also known as tc bolts are used for high strength, steel to steel fastening. It is one of the most commonly used fasteners for high strength applications, even preferred over large hex bolts. The head is dome-shaped and is not designed to …

In this paper, the unified gauge-tension control problem is formulated by defining the exit strip thickness of stands and interstand tensions as controlled outputs. It is shown that cold rolling process can be described by a nominal model perturbed by an additive uncertainty. This model is used to design a robust tracking controller, based on H∞ control theory, to …

Keywords: wire rod rolling, tension control, rolling torque, fuzzy control 1. INTRODUCTION Interstand tension control is an important part of the process control in modern continuous wire rod mills. The interstand tension is a force, resulting from the increase in relative rolling velocity in successive stand and it affects

Load Cells. High quality tension control starts with a high quality tension control signal. Montalvo's strain gauge load cells offer industry leading sensitivity to detect the slightest changes in tension, minimizing waste and maximizing your amount of high quality end product.