Our daily lives are made easier by a wealth of electronic devices ranging from light bulbs to refrigerators and hair dryers to smartphones. In almost every area of our personal and work life, electronic components play a decisive role.
The ferronickel alloys group exhibits a wide range of distinctive features in its physical properties. The main areas of technical application are supported by the electrical, magnetic and thermophysical properties of these alloys.
Heat conducting and resistance materials, expansion alloys and soft magnetic materials have played a vital role in electronics and electrical engineering for over 100 years. They have many applications in household appliances like hair dryers, electronic motor controls, instrument transformers or current leakage circuit breakers, in the poles of electric motors, transformers, shieldings or as yokes and armatures in relays.
Overhead lines on railways carry 15,000 volts - way too much for moving off. Braking and starting resistors made from VDM alloys for electrical drive systems reduce the volume of electrical current and ensure a gentle start to the journey.
VDM's ferronickel wires are built into electronic motor controls and other motor vehicle components. In this, it is especially important that the materials are suited to the expansion characteristics of different forms of glass and ceramic material in order to maintain impermeability. With their thermal expansion properties, materials such as VDM® Alloy 29-18, VDM® Alloy 51 and VDM® Alloy 52 synchronize well with various types of glass and ceramics.
The heating element industry offers a characteristic example of the worldwide application of nickel alloys produced by VDM Metals. Metallic heating elements are found in use in every place where electric current is converted into heat, for example in ceramic hobs, toasters and tubular heating. These are the applications for special wires made by VDM – for example, from VDM® Alloy HT 60 or VDM® Aluchrom 0.
The soft magnetic ferronickel alloys are divided into two categories. One category consists of alloys with medium nickel content, of which the most important are VDM® MAG 50 and VDM® MAG 53. The second comprises alloys with higher nickel contents, of which the most important are VDM® MAG 7904 and VDM® MAG 75. These alloys are used mainly as stamped and bent parts, toroidal strip-wound cores , current measuring modules and electrovalves.
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