Product category:
Presswork, stamping, fabrication Subcontracting Services
News Release from: DavyMarkham | Subject: Machining, inspection and proof assembly
Edited by the Manufacturingtalk Editorial
Team on 19 January 2007
Machining, inspection and proof assembly
Sheffield heavy engineering company, DavyMarkham is undertaking a GBP1 million manufacturing contract for the finish machining, inspection and proof assembly of a 5m wide steel plate mill stand.
Sheffield heavy engineering company, DavyMarkham is undertaking a GBP1 million manufacturing contract for the finish machining, inspection and proof assembly of a 5m wide steel plate mill stand, due to be installed at a greenfield site in Orissa, on the east coast of India The order was placed by VAI UK, one of the world's leading plant-building companies for the iron, steel and aluminium industries, which was recently commissioned to provide a complete plate mill and shearline for dynamic Indian producer, Jindal Steel and Power Limited
This article was originally published on Manufacturingtalk on 8 Aug 2007 at 8.00am (UK)
Related stories
5m wide plate mill stand machined, assembled
UK-based heavy machining and fabricating company is poducing a 1050 tonnes, 5m wide plate rolling stand for an Indian steel plant - to be machined and test assembled before shipping.
Forging presses upgraded in short time
UK heavy fabrication company is able to provide an expert service that can return forging presses, manipulators, to as-new or even superior condition, in a very short time time.
Weighing almost 1,200 tonnes when proof assembled, the plate mill stand consists of two main bolted housings, similar in structure, weight and dimensions to those recently produced for Chinese steelmaker Shagang and described as the largest ever built in the UK.
This project again involves the same three Sheffield steel firms: VAI UK, a division of the global Siemens Group, newly-renamed DavyMarkham and casting and forging company Sheffield Forgemasters, which was responsible for casting the housing posts and tie-beams for the new installation.
The job also reflects growing demand in China and India for 5 metre wide steel plate, for pipeline and shipping applications in these fast-growing Far East economies.
Further reading
Large mine hoist order from nickel producer
Sheffield heavy engineering specialist Davy Markham has secured an GBP6.5 million order from CVRD Inco Limited, a large Canadian nickel producer, for mine hoists.
Largest hard rock tunnel boring machine
To serve a Niagara hydro-electric project, DavyMarkham manufactured a cutter head support and a final drive housing for what is claimed to be world's largest hard rock TBM (tunnel boring machine).
Reconditioning service for machines and parts
DavyMarkham has announced the introduction of a new dedicated Reconditioning Service, at its Darnall Works, which includes a fast-track capacity able to respond within 24 hours.
Jindal Steel and Power (JSPL), an O P Jindal Group company, has the largest coal-based sponge iron manufacturing capacity in the world, underpinning its production of value-added products like 120m long rails and structural steel, and operates its own coal and iron ore mines, as well as generating 290MW of power.
At Raigarh, a tribal district in the state of Chhattisgarh, JSPL has always taken its role as a responsible corporate citizen very seriously and the company has been trying to make a difference through ongoing programmes specially instituted to improve lives of the underprivileged.
Forty-two villages have been adopted, contributing to the development of the region through a more holistic community-building effort, providing sewage and sanitation facilities, building and maintaining roads and parks, through to healthcare and education.
Last year, JSPL signed a memorandum of understanding with the State Government of Orissa, a coastal region rich in mineral wealth, to build a new greenfield integrated steel production and sponge iron plant, with an annual output of 6 million tonnes.
This is one of the largest steel projects proposed in the state and will include a captive power plant producing 250MW, with the first phase expected to go on stream by 2008.
JSPL is also setting up a 5 million tonne steel plant in Jharkhand which will help in developing the backward areas of the state, while Jindal Power , a wholly subsidiary of JSPL, is setting up a 1000 MW Super Thermal Power Plant Project in Raigarh.
VAI UK, now a division of the Siemens Industrial Solutions and Services Group, has more than eighty years' experience in the supply of rolling mill facilities and integrated automation solutions.
For JSPL's new Orissa site, it secured a project for the 5m plate mill and shearline, covering the entire process from reheating to despatch, and including automated control systems for level 1 and level 2 automation.
The plant will produce 1.2 million tonnes of plate per annum, around half of which will be employed for gas and oil pipeline production.
With Sheffield Forgemasters responsible for supplying the free-issue rough castings, DavyMarkham will carry out the finish machining of these castings at its Darnall Works, employing special lifting, handling and assembly techniques developed on the Shagang contract.
The four housing posts, each weighing up to 170 tonnes and with a cross-section of 1,000mm, are being machined to extremely tight geometric and parallel tolerances on DM's largest milling and boring machines, employing the latest CNC techniques.
Once again, bolted multi-piece housings are preferred to single castings and the 15m high posts will be individually craned into DavyMarkham's massive assembly pit and raised to the vertical, before being secured to the top and bottom tie beams, using temporary bolts.
When shipped to Orissa, they will be reassembled on site using giant 300mm diameter pre-tensioned bolts, which employ the latest techniques to ensure that pre-tension is precisely and evenly achieved on each of the eight bolts that hold the housing together.
"Bolted housings are now the technology of choice for mill housings on this scale, since it limits risks in manufacture and helps immensely with shipping," says Siemens-VAI .
"The logistics of shipping items weighing 200 tonnes around the world are complex enough, let alone huge single piece castings, so it's the optimum solution.
Working closely with DavyMarkham, we have now more or less perfected the exacting manufacturing process, which is why we are experiencing worldwide demand.".
• DavyMarkham: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
