WCA November 2022

Products

Alcomex expands product range with flat strip springs

decreases during unwinding. Often the working range is only within one coil turn. Conversely, constant force springs and power springs are tightly wound on each other and the force is created by partial or complete unrolling. Few companies can produce these springs. Not only is the production itself demanding, but the manufacturer must also have strong technical know-how and the ability to provide the customer with the necessary technical support, often starting at an early stage of development. This support can go beyond the production of the coil spring: part of the

Coil springs, suchas clock springs, constant force springs and power springs, are made using flat tape – most often rolled carbon steel or high-strength stainless steel. They are used in applications including spring hinges, self-retracting devices, seat belts, fall arresters, seat tippers, cable retractors and timers. The construction of the different types of coil spring is visually similar, but the springs are fundamentally different in terms of functionality and application. Clock springs with space between the individual turns work without any contact between the threads. The developed force increases during winding and

Assorted coil springs

Photo courtesy of www.alcomexsprings.com

development, production and delivery is the assembly into the various types of housing in which the springs are located. One of Alcomex Springs’ new production plants focuses on the production of these flat coil springs. The production technologies are complementedby a large R&D team, and the logistics capabilities within the Lesjöfors group allow the springs to be delivered worldwide. Alcomex Springs www.alcomexsprings.com environments, and are backed by PPG’s support and technical service. Xylan 1000 is a solvent-borne, resin bonded, high-temperature-resistant dry film formulated to deliver a wide range of performance characteristics when used in multiple industrial applications. Electropolyseal Electrocoat is designed specifically for bulk applications, offering corrosionprotection, adhesionandprecise torque control in a range of performance options. Electropolyseal e-coat does not fill recessed heads or threads. PPG www.ppgindustrialcoatings.com The clip can be combined with face-to clip fasteners at end supports to further delay disengagement and allow for larger negative wind loads or longer spans. The same clip and face-to-clip fastener are used regardless of panel thickness, minimising the number and variability of components. The V6 X-Span Clip is also reversible, with holes at the ends of the clip and at the centre for intermediate supports, removing the need for two different clips to be used at different areas or for the field-drilling of holes in the clip. Metl-Span www.metlspan.com

Fastener coatings for global infrastructure boom With the Infrastructure and Jobs Act becoming law late last year, the USA is set to invest $1.2 trillion to upgrade roads, bridges, railways and airports. Other countries may follow suit, heralding a global infrastructure boom. This massive investment in infrastructure, combined with a construction industry experiencing a post-Covid rebound, is creating high demand for fasteners built for longevity. or at sea, PPG coatings are formulated with technologies designed to prevent corrosion and chemical attack, even in the toughest conditions. The company’s fastener coatings offer a range of benefits that include an extensive colour palette for easy identification, RoHS- and REACH-compliant protection from abrasion and impact through to load resistance and low friction for torque tension and release.

PPG is a single-source provider of complete fastener solutions – pre treatment, electro-coat, liquid and powder coatings – that are engineered to optimise fastener reliability, efficiency and lasting performance. For installations on land

PPG products such as Xylan® 1000 and Electropolyseal® Electrocoat ensure the performance and durability of fasteners in a wide range of applications and

New concealed fastener clip for building facades Metl-Span is expanding its range of clips for concealed fasteners with the introduction of the patent-pending V6 X-Span Clip.

the interior of the panel, for a more efficient installation and a stronger panel. TheV-shaped fastener is designed to fit the joinery of Metl-Span CF insulated metal panels to increase the stiffness of the panel and better distribute the shear load at fastening locations. This distribution helps to delay panel disengagement under negative loads – a failure point of thicker panels at longer spans. “The V6 X-Span Clip introduces material, labour and time savings for installation crews for long span building envelopes utilisingMetl-Span insulatedmetal panels,” said Jennifer Franz, product manager at Metl-Span. “This clip advances efficient design to better serve the industry and delivers greater long-term durability.”

Providing an alternative to back fastening, the V6 X-Span Clip allows crews to install longer spans without the need to access

The V6 X-Span clip provides an alternative to back fastening

FA 7/45

www.read-fastenersasia.com

November 2022