steel rolling improvement

Improvement on High-Temperature Mechanical …

 · In the present investigation, intermediate hot rolling on modified 9Cr-1Mo steel have been performed in austenitic phase (1050 C) and below austenitic phase (550 C). Intermediate hot rolling including normalization at elevated temperature (1150 °C), followed by tempering (700 °C) is employed to refine its lath structure and improve precipitation state.

[PDF] Quality Improvement in Steel Rolling Industry …

Semantic Scholar extracted view of "Quality Improvement in Steel Rolling Industry through Quality Function Deployment ( QFD ) : A Case Study in Ajmera Steel Rolling" by Ratlam et al. Corpus ID: 173988090 Quality Improvement in Steel Rolling Industry through

Steel Re-Rolling-Technology, Machinery, Plant, Patent, …

In a large range of applications, steel must first be processed in a rolling mill before it can be used. Steel used for building a vessel must sustain fatigue due to rolling and other reaction during voyage.

UDC 621 . 771 . 25 Making to High Performance and Productivity Improvement of Steel Bar and Wire Rod Rolling …

NIPPON STEEL TECHNICAL REPORT No. 96 July 2007 - 21 - UDC 621 . 771 . 25 Making to High Performance and Productivity Improvement of Steel Bar and Wire Rod Rolling Process Ryuichi SEKI*1 Koichi HASEGAWA*1 Kenji NAKAJIMA*2 Kohji YOSHIMURA* 3

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING …

In the late 1990s finally ICDP enhanced with carbide improved roll performance and started a new phase for this old grade, still successfully in use today in work rolls for early finishing stands of finishing hot strip mills (replacing high chromium iron and HSS - see further down) and for plate mills.

Options for Improvement of the Ugandan Iron and Steel Industry

steel and threatening the very existence of the steel industry in the country. The installation of continuous casting steel rolling mills at Steel Rolling Mills, Jinja and Tembo steel Mills, Iganga has improved on the level of production. Because of old

FEATURING ROLLING AND PROCESSING

60 ROLLING INTO THE FUTURE BY DIGITALIZATION Paper number: 78 Principal author: Paul Riches Today''s steel producers face the dual challenge of ensuring on-time delivery and ever-demanding prod-uct requirements while also running a lean operation. Daily

IMPROVEMENT IN MECHANICAL PROPERTIES OF Fe-Ni …

In this paper the effect of cold rolling on the mechanical properties of Fe-10 Ni-7 Mn steel was investigated. Cold rolling for 20%, 40%, 60%, 80% and 90% were carried out on a solution annealed material with subsequent aging at 753 K. Improvements in the tensile properties of the as-deformed and aged alloys were found.

Improvement in productivity by application of a slat …

Request PDF | Improvement in productivity by application of a slat conveyor design in a steel rolling mill | This work introduces a novel approach to handle heated ingots without ...

Rough Rolling Improvement at Wire Rod and Bar Mill at Hikari Area of Nippon Steel Stainless Steel …

146 416 〕 (2020) ステンレス()における Rough Rolling Improvement at Wire Rod and Bar Mill at Hikari Area of Nippon Steel Stainless Steel Corporation *

Improvement of Ridging Behaviour of Ferritic Stainless …

The authors suggested a new method for spread rolling of thin strips by multi-pass grooved rolling. In this study, the method has been applied to a Cr 11% ferritic stainless steel strip and its effect on the ridging behaviour has been investigated.

Brochure-Producing Quality Steel through Continuous Improvement in Steelmaking and Rolling …

Improvement in Steel making and Rolling Wednesday 9 March 2011, Time : 08.30 – 13.00Wednesday 9 February 2011 Schedule 08.30 Registration of participants 09.00 Welcome Remark 09.15 Section 1: "Defect of Continuous Casting Products and their09.45

Removal of Barriers to Energy Efficiency Improvement …

This project seeks to reduce greenhouse gas (GHG) emissions by providing technical assistance to small and medium-sized steel rerolling mills in India that will enable them to adopt more energy efficient and environmentally friendly technologies. For capacity building and information dissemination, the Ministry of Steel will establish a center for training, information and capacity ...

steel rolling improvement

TQM Steel Rolling (Metalworking)Steel Rolling (Metalworking) TQM is the mutual co-operation of everyone Total Quality Management Continuous Improvement of The Quality Management System Read More Improvement in Energy Efficiency of Re …In India, there are a large number of stainless steel re-rolling mills in the small and medium sectors, located in three main clusters at Jodhpur, …

Steel factory makeover 5S in 1 day by IMPROVO …

 · Check this timelapse video where we create a safe, efficient and clean workenvironment in only 1 day using the 5S methodology in 1 dag ...

Deformation mechanism and performance improvement …

mechanism and performance improvement of spline shaft with 42CrMo steel by axial-infeed ... on microstructures of low-carbon steel having a higher thread rolling index in bolt production. This ...

A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS

Rolls are tools used in rolling mills to reduce the cross section of metal stock. The weight of rolls may vary from a few kilograms up to 250 tonnes. Under rolling conditions the contact area between roll and stock suffers wear, the other parts of a roll - body and

Improvement of the Rolling Contact Fatigue Resistance in …

 · Improvements in the rolling contact fatigue resistance of bearing steels need to be made, and various researches to achieve this have been implemented. It is particularly important that, among the non-metallic inclusions, the quantity of large-size oxide inclusions be reduced.

Improvement of the Rolling Contact Fatigue Strength …

Improvement of the Rolling Contact Fatigue Strength of Sintered Steel for Transmission Component. 890412. A sintered steel with a high rolling contact fatigue strength of 1660 MPa was developed using a new process and modified powder. It is expected to be used for heavy duty gears and races for automatic transmissions.

(PDF) Spalling Prevention and Wear Improvement of …

Spalling Prevention and Wear Improvement of Rolls in Steel Strip Hot-Rolling Process Qiang Dong . Jian-guo Cao . Dun Wen Submitted: 25 June 2015 / in revised form: 24 July 2015 / Published ...

Improvement for Microstructure of Severely Deformed …

Improvement for Microstructure of Severely Deformed JIS S45C Steel after Rolling Process p.148 Investigation of the Effects of Technological Parameters on Surface Roughness in Extrusion Bars of Aluminum Alloy p.155 Study Computational Simulation and ...

Improvement of Technology for Producing Rolled Sheet …

 · Results of modeling rolling conditions for low-carbon steel strips and subsequent cooling make it possible to establish the main laws governing metal structure formation. Industrial testing of the calculated rolling regimes and subsequent cooling of low-carbon steel strips in the 2000 NLMK mill confirm the possibility of improving finished rolled product mechanical properties.

Improvement of Ridging Behaviour of Ferritic Stainless …

Request PDF | Improvement of Ridging Behaviour of Ferritic Stainless Steel by Spread Rolling Method | A rolling method to increase the width of materials would have advantages ...

Improvement of the Rolling Contact Fatigue Resistance in …

The reason for this improvement is considered to be the absence of voids at the interface between the matrix and the non-metallic inclusions, which would otherwise have a negative effect on the fatigue life. Keywords: bearing steel, rolling contact fatigue life, non

Toughness improvement of an ultrahigh carbon steel by …

Request PDF | Toughness improvement of an ultrahigh carbon steel by rolling bonding with a Cr-Mo steel | Laminated composite materials containing five layers of ultrahigh carbon steel, 1.35%C, and ...

Improvement on edge drop in cold rolling of silicon …

Since silicon steel is used in a laminated form, thickness profile in the width and the rolling directions should be accurately controlled. It is well known that the phenomenon of edge drop is one of very serious problems in cold rolling of silicon steel. In order to determine one of the better methods for reducing edge drop, a computer simulation was carried out in this study under various ...

US57388A

steel rolling iron improvement Prior art date 1866-08-21 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) 1866-08-21

Improvement for Microstructure of Severely Deformed JIS …

Request PDF | Improvement for Microstructure of Severely Deformed JIS S45C Steel after Rolling Process | A new heat treatment procedure is proposed to remove the strong texture microstructure of ...

Spalling Prevention and Wear Improvement of Rolls in …

 · Hot rolling is an essential process in steel strip production. Rolls are key components in hot strip mill (HSM). Work and backup rolls have to withstand adverse service conditions in hot-rolling process, such as high thermal stress, heavy mechanical stress, and long service periods, resulting in serious wear and fatigue on roll surface.

An improvement in operation of a crop cobble shear …

 · An improvement in operation of a crop cobble shear system for steel rolling mill using direct torque control induction motor drive Abstract: The paper describes how a Direct Torque Control (DTC) drive technology has been used to improve the operation of a Crop Cobble Shear (CCS) system in a steel rolling mill.

Improvement of surface finish in steel hot rolling by …

Improvement of surface finish in steel hot rolling by optimal cooling ahead of entry into the roll gap: Numerical analysis. / Krzyzanowsky, M; Beynon, John. 2004. Paper presented at MS&T ''04, . Research output: Contribution to conference › Paper › peer-review

Improvement of steel hot-rolling by the use of lubrication …

FP4,,0101,SA des Fonderies J. Marichal-Ketin & Cie.(BE),CENTRE DE RECHERCHES METALLURGIQUES(BE),Cockerill Sambre SA(BE),Gontermann-Peipers (DE),Forcast International(FR),Quaker Chemical BV(NL)

Rolling Mill Yield Improvement Project at African Foundries …

 · Rolling Mill Yield Improvement Project at African Foundries Ltd. Yield improvement is a crucial issue for any steel plant. In order to maximize profit and reduce costs, the best approach to yield improvement is to identify areas of yield loss that can be effectively regained within the limit of …

What is the Rolling Steel Production Process?

 · The process of rolling steel production is quite complicated. Despite the improvement of the quality requirements of rolling products, the expansion of the range of varieties, and the application of new technologies and new equipment, the various processes that make up the process will change accordingly, but the entire rolling production process always consists of the following basic processes:

Strength Improvement of Ferritic/Martensitic T91 Steel …

 · Cross wedge rolling (CWR) is a forming technique wherein the processed material microstructure is controlled by the processing temperature. The initial results on CWR-processed T91 steels at different austenitizing temperatures are discussed with the microstructure analysis by various characterization techniques, such as the optical and scanning electron microscopies. The processed …

How to Improve Steel Manufacturing Processes and …

 · Hot and Cold Rolling Processes in Steel Manufacturing Non-contact thickness gauges for hot- and cold-rolling mills provide precise, real-time measurements during high-speed production of steel plate and sheet to help you meet the tightest tolerances, ensure your products meets the most precise specifications, and maximize raw material use.

Improvement of formability and tensile mechanical …

 · In this study, a commercial SAE 970X microalloyed steel was subjected to different controlled rolling processes followed by air cooling to room temperature. The main idea is to propose a novel rolling process for improving the tensile mechanical properties and formability by controlling the microstructure and crystallographic texture (i.e., grain orientation, low and high angle boundaries).

Cold Rolling of Steels – IspatGuru

 · Cold rolling of plain carbon steels involves the following four steps. Pickling – In this step the scale formed on the surface of the hot rolled steel strip is removed since its non removal has several detrimental effects on further processing of steel during cold rolling. This step is described in detail in separate article under link http ...

Options for Improvement of the Ugandan Iron and Steel Industry

Options for Improvement of the Ugandan Iron and Steel Industry Christopher Senfuka1, John Baptist Kirabira2, Joseph K. Byaruhanga3 ... Steel Rolling Mills Ltd, Jinja 2 x 8MT IF 1 x 15 MT EAF 70,000 50,000 40,000 Rebars Tembo Steel Ltd, Lugazi 1 x 1IF 1 x ...