roll pass design for blooming mill

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GENERAL ASPECTS OF ROLL COOLING FOR HOT & COLD …

Oct 16, 2020· This paper reviews key aspects of roll wear control — roll material properties, roll pass design, and system factors such as temperature, loads and sliding velocity. ... (blooming-slabbing) mills.

Roll Pass Designing in Continuous Bar Mills

The 10-pass example should be fine if you're running non-notched, postcut mild steel. If the section is notched, precut, or high-strength material, you'll need more passes to achieve desired results. Additional passes allow the material to flow through the mill with less strain. Design the Layout and Roll Tooling

Rolling of Metals: Process and Principles (With Diagram)

using an FEM model during the initial passes in a blooming mill, as a function of three different pass schedules, roll groove depth, collar taper angle and corner radius. The simulations predicted the effective strain penetration, load, torque, fish tail billet end shapes, and metal flow behaviour at a chosen temperature, mill rpm and draft.

Effect of pass schedule and groove design on the metal ...

A good roll design considers the dynamics of girth growth vs reduction and the subsequent edge distortion when determining the correct roll contour and fin angles. Reduction and Girth Control: The fin blade is a narrow roll segment that fits into the open gap at the top of the partially formed tube.

(PDF) Wear of hot rolling mill rolls: an overview

Productivity of the mill was also sharply increased along quick learning curve. Key Words Cold Rolling Mill, Zoom-MillTM, Off-gauge, Minimization, Yield, Productivity, Labor saving, Leader strip, Spot welder, Even-numbered Pass 1. Introduction For the production of cold rolling steel strips in a yearly production capacity range from 150,000 to

New Rolling Method Of Reversing Cold Rolling Mill

The 2+4 EVO reducing and sizing mill uses a patented pass design. A reducing group with 2-Roll stands with high reduction is followed by a sizing group with 4-Roll stands with low reduction. While the 2-Roll high reduction guarantees the desired metallurgical structure, the 4-Roll low reduction provides excellent surface finish and size tolerance.

The basics of roll form tooling design

Aug 01, 1994· A lit- erature search has revealed no stochastic approach in modelling wear. Roll pass design exerts a vital influence on the non- uniform wear of rolls via control of loads, stresses and relative slip. In addition, the groove wall inclination has a direct influence on the radial machining required to regenerate the groove geometry.

Fin Pass Rolls - JMC Rollmasters

Feb 08, 2019· Tags:-roll pass design,design,roll pass,rolling,rolling mill,hss rolls,pass,number of pass needed Thanks for watching the video Do subscribe like comments share Keep supporting:-

Fundamentals of Roll Cooling and Control of Flatness at ...

Jul 29, 2010· Roll Pass Designing in Continuous Bar Mill Billet Size Area Finished Size Area of finished bar Co-efficient of elongation No. of passes 150 22500 12 113.1429 198.8636 20.78453 150 22500 16 201.1429 111.8608 18.52503 150 22500 20 314.2857 71.59091 16.77243 150 22500 22 380.2857 59.16604 16.02385 150 22500 25 491.0714 45.81818 15.01982 150 22500 ...

Metal Rolling - Manufacturing

The pass design model was generated on the basis of above two models as well as the rule-based pass design algorithm. Mill optimization of pass schedule crown distribution, roll profile ...

(PDF) Roll Pass design for hot flat rolling of plain ...

Roll neck bearings Design conditions 4 neck have a loose fit. As a result, the chocks can be easily removed; their field of application is restricted, however, by the loose ... are used mainly in blooming mills, heavy plate mills and hot strip mills, where considerable axial forces occur in combination with low to moderate speeds. During

(PDF) On the Optimization Procedure of Rolling Mill Design

Roll Pass design for hot flat rolling of plain carbon steel

RollPass.design – Specialize in hot rolling mills for ...

The pass design model was generated on the basis of above two models as well as the rule-based pass design algorithm. Mill optimization of pass schedule crown distribution, roll profile ...

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING …

proper roll cooling, the required thermal roll crown can be controlled in way to influence the overall roll profile. It is common practice adjusting the roll cooling to the strip width being rolled. Roll cooling is hence an actuator to allow stable rolling conditions of the mill. This is particular true for strip tandem rolling mills with regard to

blooming mill roll pass design

roll bite and in a typical Cold Tandem Mill, work roll temperatures normally fall in the range of 55oC – 70oC with strip recoil temperatures and inter-stand strip temperature rarely exceeding 160 oC depending on product. Roll Bite temperatures in slower heavily drafted stands can peak in the region of 300oC, diminishing with the

RollPass.design – Specialize in hot rolling mills for ...

Roll Pass design for hot flat rolling of plain carbon steel

Rolling Technology & Roll Pass Design

Roll Pass design for hot flat rolling of plain carbon steel

GENERAL ASPECTS OF ROLL COOLING FOR HOT & COLD …

Oct 16, 2020· This paper reviews key aspects of roll wear control — roll material properties, roll pass design, and system factors such as temperature, loads and sliding velocity. ... (blooming-slabbing) mills.

Bar Mill Solutions by Primetals Technologies

Jun 18, 2014· Roll Pass Design. satyendra; June 18, 2014; 0 Comments ; Long products, roll grooves, Roll pass, Roll pass design, rolling mill, rolls, sections,; Roll Pass Design Long products are normally rolled in several passes, whose numbers are determined by the ratio of the initial input steel material (square or round billet or bloom) and final cross section of finished product.

Computer-aided roll pass design for continuous billet mill ...

The ingot or continuous casting is hot rolled into a bloom or a slab, these are the basic structures for the creation of a wide range of manufactured forms. Blooms typically have a square cross section of greater than 6x6 inches. ... One of the goals of roll pass design is to properly design a series of reductions in such a way as to mitigate ...

(PDF) Wear of hot rolling mill rolls: an overview

Within the framework objectives of the Arab Iron and Steel union to pay attention to human development and raise the administrative, organizational and technological skills of engineers and Technicians in steel industry and associated industries, AISU is implementing a training program in "Rolling Technology and Roll Pass Design" from 23 to 27 September 2018.

(PDF) Roll Pass design for hot flat rolling of plain ...

Roll Pass Design – IspatGuru. 18/06/2014· Roll pass design is based on the characteristics of initial input (weight of billet/bloom, steel grade, and steel temperature before and during the course of rolling), characteristics of finished rolled product (dimension of section, tolerances and specification concerning to mechanical properties, and surface finish of rolled product), and ...

Practical Roll Pass Design | IOM3

Newton's substitution method has been used to solve the equation. With known reduction between consecutive passes, geometrical dimension of square and diamond passes are computed. A model has been used to calculate pass design of a finishing train of a continuous billet mill producing 60 mm square billet from 120 mm square bloom.

Roll Pass Design | Schweitzer Rolling Technology

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. Evidently the reasons of roll failure have to be discussed and determined (or vice versa) to reduce the risk of repeated roll …

Fin Pass Rolls - JMC Rollmasters

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. Evidently the reasons of roll failure have to be discussed and determined (or vice versa) to reduce the risk of repeated roll …