Dumet

Dumet Wire is a copper wire with a core of an iron-nickel alloy with a low coefficient of thermal expansion. Dumet wire is the basic metal component of a Lead-in-Wire providing the required vacuum tight glass-to-metal seal . Dumet consists of a base wire and a sheath. The ratio of both compounds should be in well-balanced proportions. Only then is... it guaranteed to obtain a vacuum tight conductor through glass. This principle is used mainly in the lighting and diode production. In order to produce dumet wire , some key processes must be precisely controlled. In the set-up line, the cladding is realized: a Copper clad on a core wire (e.g. Nickel-Iron). This Copper cladded wire is welded to achieve an endless length and drawn to obtain the requested diameter. Finally the surface of the dumet has to be treated to guarantee a good adhesion to the glass. Depending on the application requirements this well-defined surface treatment can be done in either ways: Borating, oxidizing or nickel-plating. It is available in various surface finishes: electrically oxidized, borax coated. Borated surface finish Dumet is used in Lead-in-wires for lamps. Dumet forms a glass-to-metal seal while manufacturing these lamps. The oxidized Dumet is used in Lead-in-wires, diodes and capacitor slug leads application. For more information you can visit: JLC Electromet, Jaipur makes lamps components Nickel and nickel alloys for Superalloys, Defence Metals, Import Substitution , Metallurgy. Nickel Alloys in Nickel Wires and Nickel Strips. Aloso Nickel-Copper with Nickel-Iron as Cupronickel and Nickel Chromium for Electronics used in Nickel-Cadmium Batteries. Welding Rod Core Wires and Thermocouple wires with Compensating wires and Extension wires. Spark Plug wires as spark plug profile and spark plug side wire. Lamp materials with Lamp components for Lighting Bulbs and Tubelights. Dumet and Glass to metal seal. Electrodes along with Lead-in-wire as Plating and plated wires. Coated wires, NPS aka Nickel Plated , Steel and Nickel Plated ...Read More