induction heating service,induction heater,induction heating equipment and induction heating system are supplied by DaWei Induction Heating Machine Co.,Ltd
Induction heating is a form of non-contact heating for conductive materials, when alternating current flows in the induced coil, varying electromagnetic field is set up around the coil, circulating current(induced, current, eddy current) is generated in the workpiece(conductive material), heat is produced as the eddy current flows against the resitivity of the material.
Induction heating is a rapid ,clean, non-polluting heating form which can be used to heat metals or change the conductive material’s properties. The coil itself does not get hot and the heating effect is under controlled. The solid state transistor technology has made induction heating much easier,cost-effective heating for applications including soldering and induction brazing ,induction heat treating, induction melting,induction forging etc.<
DIFFUSION SATURATION OF STEEL BY INDUCTION HEATING
The principal feature of the method of high-frequency induction heating is the reduction in the treatment time owing to the acceleration of the processes occurring in the alloys when heated, and the possibility of attaining any temperature. A number of specific features of induction heating are important for diffusion saturation: Firstly, the component may be heated just to the necessary depth,·without.affecti:ng the main body of the metal to which optimum structure and properties maybe imparted by preliminary treatment; secondly, owing to the high temperature and short holding time, the surface of the metal base may be saturated to the maximum degree, which cannot be done in a furnace since, as the result. of diffusion, the alloy layer spreads and its concentration is diminished. The investigation was carried out uSing the GZ-46 high-frequency apparatus with a 40KVA, 500-kc tube oscillator. The materials used for the investigations were armco iron, carbon steel (0.64%0) and steel 38KhMA. Saturation was carried out with chromium, aluminum, silicon, tungsten, molybdenum, boron, and also with titanium, followed byboriding. The specimens subjected to investigation had a diameter of 7 mm and a length of 10~15 mm with a machine-finished surface. The specimens were degreaSed before saturation.