wiredInUSA January 2020

crosswires simultaneously to the linewires, at speeds of 220 crosswires per minute.

that specializes in large-scale and highly complex steel structures including offshore substations and offshore foundations.

Standard resistance welding techniques are used in the process.

The wind farm is owned and operated by Belgian company Parkwind.

The machine line has an enhanced linear pullout system as standard, moving the mesh from the welding portal and into the mesh coiler. The mesh exits the linear pullout into the fully automated coiler, which rolls, cuts and ejects the completed welded mesh. The coiler then automatically threads the new incoming mesh into the mandrel, ready to roll the new coil. The coiler has a unique accumulation system, which stores welded mesh while the cutting and ejecting sequence is running, so ensuring that production is uninterrupted when unloading the mesh rolls. Rebar production gets an upgrade Yunnan Qujing Chenggang Steel Products has ordered a new high-speed bar mill from Danieli. The mill can produce 1.2 metric tonnes per year of 8mm to 40mm diameter rebar and round bar, in grades HRBF 400E to 500E. Production can run at up to 200 tonnes

Development of Northwester 2 is ongoing, and the wind farm is expected to be in operation in the first half of 2020. The selected product for the project is Bumax SDX 109, a high-strength super- duplex fastener with resistance to general crevice, pitting and stress corrosion in aggressive environments. Faster mesh welding Clifford’s new FMW fully automatic mesh welding range needs only a single operator, and features dual crosswire inserters, dual linear pullout and a fully automatic coiler for mesh rolls with fixed pitches. The mesh welding line has both off- coil linewire and crosswire payoffs. The crosswires are fed from an overhead payoff coil and are straightened in two sets of seven-roll straighteners, mounted at 90º to each other to give dual-plane straightening. Crosswires are then cut to length with automatic shears. Dual servo-actuated fingers hold the crosswires in place and under tension, enabling the dual weld tips to weld the two

wiredInUSA January 2020

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