Ferrite impeder cores are used for concentration of magnetic flux in high frequency, RF, induction welding of steel tubes and pipes. In this application ferrite core experiences temperature upto 150°C and the core properties must be optimized for this environment. Properties which influences the efficiency and the speed of the process are :
For these applications, special ferrite materials are offered - They are having following excellent physical properties.
(a) High Curie temperature and a low temperature dependence of the initial permeability and of magnetic flux density in the working temperature range.
(b) A high saturation flux density in the working temperature range upto150 °C.
(c) Low losses with increase of temperature.
(d) A relative high amplitude permeability.
(e) A high stability of the initial permeability vs. frequency upto 1 MHz.
Following four types of Impeder Core are produced and supplied :
1. Solid Plain Core - P
2. Solid Fluted Core - F
3. Hollow Plain Core - PH
4. Hollow Fluted Core - FH
The overall straightness of Impeder Core is excellent and is controlled by passing it through a 200 mm long gauge with an inner diameter equal to, nominal outer diameter of the Core plus 1.0 mm.
All types of Impeder Core are supplied in a nominal length, equal to 200 + 5mm.
Primitive Compasses, Diamond or Cubic Boron Nitride, Impeder Coolant Systems, High Frequency Welding of Tubes and Pipes etc.
Sintered ndfeb is a most general permanent magnet of rare earth, which possesses high maximum magnetic energy and high intrinsic coercive force. It is widely used in motor, speakers, magnetic separator, magnetic therapeutics and other high-tech fields.
Our affiliated factory equipped with advanced processing machines and complete inspecting techniques, and based on the technical power of many professionals in the fields, produces ndfeb in good consistent magnet property. It is able to produce all kinds of ndfeb products as clients require.