Mitsubishi Heavy Industries deploys EFD Induction ‘Terac’ deck straightening systems

Mitsubishi Heavy Industries (MHI), one of the world’s largest builders of cruise ships and gas tankers, has installed two EFD Induction “Terac 25” deck straightening systems at its main shipyard in Nagasaki, Japan.
 
April 15, 2013 - PRLog -- The Terac systems are currently being used to straighten decks and bulkheads on large cruise vessels.

‘This is yet another high profile endorsement for the Terac,’ says Tetsuro Yanagawa, managing director of EFD Induction Japan. ‘MHI are known worldwide for their shipbuilding expertise and efficiency, so their choice of Terac is a real sign of approval.’

Each of the two Terac 25s delivered to MHI is a turnkey solution that is housed in a standard 1.8m (5’ 9”) container. ‘A small footprint is essential in busy shipyards,’ says Yanagawa. ‘But despite its compact size, the Terac has been documented to cut straightening times by as much as 80 per cent compared to flame heating and other traditional methods.’

Straightening ship decks and bulkheads with open flames is slow, expensive and potentially dangerous. Induction straightening, however, is fast, easy and safe. The process works by inducing eddy currents in the steel plate. This causes extremely rapid through-heating in a very concentrated area, which in turn expands vertically. As the heat affected zone cools, the surrounding material shrinks equally in all directions, permanently shortening and straightening the plate.

‘The through heating achieved by induction,’ adds Yanagawa, ‘means only one side of a deck or bulkhead needs to be heated. With flame straightening, an operator typically has to heat both sides. Also, with a Terac the temperature and time parameters are set in advance, so it virtually impossible to overheat the metal.’

The Teracs were delivered to MHI’s Nagasaki yard several months ago, and have been working according to specifications. ‘A key benefit of the Terac,’ says EFD Induction product manager Jan-Kåre Andersen, ‘is its ease of use. It takes years to train a skilled flame operator. But it takes only a few hours to learn how to correctly use a Terac. It’s a straightening process that takes shipbuilding efficiency to another level.’

About EFD Induction
EFD Induction has to date installed thousands of heating solutions for a wide range of industrial applications—bringing the benefits of induction technology to many of the world’s
leading manufacturing and service companies. EFD Induction has manufacturing plants,
workshops and service centers in the Americas, Europe and Asia. Corporate headquarters
are in Skien, Norway. http:// www.efd-induction.com
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Tags:Deck straightening, Induction Heating, Ship Building
Industry:Shipping, Industrial
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