EuroWire November 2022

Products

Alcomex expands product range with flat strip springs Coil springs, such as 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 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.

Assorted coil springs

Photo courtesy of www.alcomexsprings.com

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 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 complemented by 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

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. 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 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 products such as Xylan® 1000 and Electropolyseal® Electrocoat ensure the performance and durability of fasteners in a wide range of applications and environments, and are backed by PPG’s support and technical service. Xylan 1000 is a solvent-borne, resin-bonded, high-temperature resistant dry filmformulated todeliver awide range of performance characteristics when used in multiple industrial applications. Electropolyseal Electrocoat is designed specifically for bulk applications, offering corrosion protection, adhesion and precise torque control in a range of performance options. Electropolyseal e-coat does not fill recessed heads or threads. PPG www.ppgindustrialcoatings.com

Industry & technology news from the world of fasteners

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November 2022