Nore 1 is a hydroelectric power plant in Statkraft's Nore plants. The facility was commissioned in 1928 and is nearly one hundred years old. When the crew discovered a crack in the crossbeam of one of the eight turbine houses, Stryvo was hired to repare the damage.
Background information
Nore 1 is a large power plant, and reactions in the concrete might cause stress on the mechanical parts. Thus, components may crack over time. Many of the components are complex or embedded, making them difficult and costly to replace. Some parts of the facility are made of materials that cannot be welded.
The Solution
To repair the crack in the crossbeam of the turbine house, Stryvo used metal stitching, also known as the "lock ‘n’ stitch" method. This technique involves drilling holes in the metal at a specified distance. Grooves are then milled out, and the parts are secured with screw threads. Since a crack is not necessarily straight, this method requires accuracy and patience to use. Nevertheless, it is an excellent alternative to welding, when welding is not possible.
Results
The method has been used by Stryvo on several occasions. It has proven to be very durable and cost-effective for the customer.
What our customer says
“We have used Stryvo on several occasions. Performing repairs on a power plant with parts that are nearly one hundred years old requires knowledge and precision. We find that it is very cost-saving to perform maintenance and repairs instead of having to replace parts with new ones.”
Ole Gunnar Haug, Maintenance Manager at Statkraft.
Want to know more?
Do you want to know more about metal stitching? Read more about our field service or contact us today:
Aseel Hassan
Manager Field Service
E-mail: aseel.hassan@stryvo.no
Phone: 400 62 289