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Maintenance of heavy-haul track by rail profiling …

Maintenance of heavy-haul track by rail profiling Overview of specifications of Rail grinding Machine, infrastructural requirements and cost –benefit analysis Sanjeev Agarwal, CE/TM/SCR B.Ram Mohan Reddy, Dy CE/TM/Line/Vijayawada 1.0 Introduction: This overview offer insights into working of Rail grinding Machine


Railway Technical Training - Protran Technology

Rail Grinding Overview . An introduction to the requirements of top of rail anomoly removal with the use of rail grinding techniques. ... The objective of this course is to introduce the history, actions and benefits of rail grinding to …


Analysis of the Impact Factor of Rail Grinding on Their ...

and GOST R 51685-2013. Rail steel defects and reasons for their causes are reviewed. The statistics of damaged and heavily damaged rails in the network "Latvijas dzelzceļš" in the period 2011–2019 is studied and analysed in detail. The statistics of rail grinding train


Grinding and Milling are Essential for Rail Quality ...

In the 1980s, the company introduced a grinding train with remote controlled tilting grinding motors. This was followed by the first switch grinding machine, the first on-board measuring equipment for the rail cross section and …


Towards a Better Understanding of the Rail Grinding …

operating setting, to improve their rail grinding practices and take further advantage of new technologies in rail grinding to better manage the grinding process and improve planning of grinding activities. INTRODUCTION . Rail represents one of the most critical and expensive parts of the railroad track infrastructure and one that is subject to


CHAPTER 1- INTRODUCTION TO GRINDING

D Introduction to Grinding, advantages and applications D Grinding wheel and work piece interaction D Interaction of the grit with the workpiece D Stages of grinding D Determination of grit spacing and grit protrusion ----- CUTTING ACTION IN GRINDING WHEEL. Since the last two decades, there has been an increased interest in the investigation of ...


1 INTRODUCTION OF RAIL GRINDING ON INDIAN …

INTRODUCTION OF RAIL GRINDING ON INDIAN RAILWAYS – AN EMPHASIS ON PRE, DURING AND POST GRINDING ACTIVITIES By Sri. M.R.K.Raju, Chief Instructor, ZCETI, SCR, Kachiguda. and Sri. P. JAYASANKAR, Sr. Instructor, SRCETC, SR, Chennai. 1.0 Introduction The decision for running heavy axle loads in railway system is governed mainly by


Understanding Why, When and How Rail Grinding is …

Rail Profile Grinding • Control Gage Corner Fatigue – Addresses High Contact Stresses on High Rail Gage Corner – One Point vs Two Point Contact – Reduces Rate of Fatigue Defect Development • Control Gage Face Wear – Enhanced Freight Car Truck Steering – Reduction in Lateral Wheel/Rail Forces and Gage Face Wear ...


DESIGN AND DYNAMIC ANALYSIS OF A NEW RAIL …

The most popular rail grinding technology at present is the facing grinding by the abrasive wheel [5, 6]. Fig. 1 shows the fundamental principle of a typical grinding train that applies this processing method. The grinding train is totally equipped with 96 grinding wheels, which


A laboratory demonstration of rail grinding and analysis ...

Keyword: Martensite, White Etching Layer, Rail grinding, Railway maintenance, Derailments. 1 Introduction Rail lines can sustain thousands of operating hours without replacement. However, in cities where rail transportation is one of the main methods of public transport the high usage of trains brings significant


Target Profiles for Rail Grinding: A Never Ending Story ...

An economic evaluation of the heavy haul grinding program between 1990 and 2005 (shown in Figure 5) indicates that rail maintenance costs were significantly reduced after the introduction of the rail grinding program. The …


A prediction method of rail grinding profile using non …

1 Introduction Rail grinding can prolong the service life of rails and improve the riding stability of a rail vehicle. Nowadays, the research on rail grinding is mainly focused on these three aspects: firstly, summing up and obtaining the influence of grinding on the rail


Influence of Rail Surface Roughness Formed by Rail ...

Introduction Preventative rail grinding is currently becoming very popular in Japan as a way of removing the surface layer of rail rolling contact fatigue (RCF) damage caused by repetitive trainloads. In addition, curative rail grinding is carried out to remove the longitudinal rail surface ir-


Corrective and Preventative Rail Maintenance by …

Preventive grinding assures generally good rail surface conditions -Supervision is required to check the results -Cyclic grinding with only partial damage removal may mask deeper damage (until spalling occurs) -Local defect development needs to be addressed -Corrective grinding complements preventive work - preceding preventive work


Modelling and Analysis of Rail Grinding

degradation, rail wear, rail grinding and lubrication is developed. Simulation model and cost models for rail grinding are developed and analysed. It has been found through this research that rail grinding at 12 MGT interval is economic decision for enhancing rail life. It was also found that lubrication is most effective compared to


Colas Rail awarded rail grinding contract by Network Rail

Plain line rail grinders are required by Network Rail to carry out corrective and preventative rail grinding works throughout Britain. Colas Rail facilitated the introduction of three brand new Loram C44 plain line rail grinders, the largest of which is C44-03, a 64-stone machine that is almost 150m long. This came into service in 2017.


Rail Dampers, Acoustic Rail Grinding, Low Height Noise ...

5 2. Introduction and aim of study There are many noise mitigation options open to railways. Some of them - such as noise barriers - have a known effect and are used widely, others such rail dampers, acoustic rail grinding or low


Paper 438 - Acoustic rail grinding - measures of long …

and a half years of operation (shortly before the next scheduled rail grind). Keywords: Railway, Wheel-Rail Interface, Grinding, Acoustic Roughness I-INCE Classification of Subjects Number(s): 11.7.2, 13.4.2, 52.4 1. INTRODUCTION The Epping to Chatswood Rail Link (ECRL) is a 13 km commuter rail line in Sydney's north,


(PDF) Preventive Grinding Moves into the 21 st Century on ...

Rail grinding is a typical maintenance procedure for railways in which an abrasive wheel is used to restore the rail profile while eliminating defects such …


The Evolution and Application of Rail Profile Grinding

The Evolution and Application of Rail Profile Grinding Allan M. Zarembski* Introduction: The elimination of rail surface defects through the use of rotating grinding wheels, i.e. rail grinding, has been used by freight railroads since its introduction by the Pennsylvania Railroad in the late 1930's.


Export and Import of Railway Technologies Introduction …

JR East focuses closely on preventing rail failures that severely disrupt transport. The company has increased the number of deployed rail grinding cars and rail flaw detection cars while also tightening rail-welding standards. As a result, the number of rail failures network-wide in FY2011 was the Track recording car 2.1 m 14.15 m


(PDF) Rail Corrugation of High-Speed Railway Induced by ...

Rail corrugation is a common railway defect that involves diverse and complex factors. Rail grinding is also the most commonly used method to …