EuroWire May 2024

Technology News

Surface processing of wire and cable Established in 1982, Boockmann Engineering provides customer-specific solutions with experience in environmental protection standards.

the precision of Helicord coating. Other applications include cleaning insulated cable; applying primers or dispersions such as water- or solvent-based PTFE dispersions to bare wire or insulated cable; and removing inkjet misprints from cable. Helicord machines are available in different shapes and sizes, suitable for applications ranging from wiping off loosely adhering dust and metal particles, to a two-step process for abrasive grinding and finishing. Product diameters range from fine wire to cables of up to 18mm. Boockmann Engineering GmbH www.boockmann.com

The company’s products include Helicord® technology for surface processing of wire and cable, such as welding wire finishing or removal of misprints from cable; Helilub® technology for precision, solvent-free lubrication of magnet wire; and the Labtech range of products for production-related analysis and measuring technology. The Helicord and Helilub principle is based on friction between a fast-moving wire and a textile cord or yarn wound around a wire, strand or insulated cable multiple times, moving slowly under push-pull-controlled conditions, creating a multiple 360° contact between the constantly renewed cleaning cord and the wire. Friction power on the wire increases linearly with the wire speed. This means the friction energy per wire surface unit, and thus also efficiency, is independent of the wire speed: Helicord can be run at drawing speeds. The use of small amounts of liquid, such as water-based tensides, organic solvents, oil or a variety of dispersions, may be desirable or even required for both cleaning and coating processes, depending on the application. For the welding wire industry, a variety of welding wire finishing cords combine the properties of solid finishing materials with

Helicord NB58