Sintering furnace is mainly the electric stove. Sintering furnace is divided into two categories: resistance sintering furnace and induction furnace, sintering furnace using more resistance. Resistance furnace is through the electric heating element to turn electric energy into heat energy is used for sintering furnace; Induction furnace is the use of electromagnetic induction in metal inspire a current heating furnace.
According to use atmosphere and vacuum furnace, resistance furnace is divided into ordinary atmosphere resistance sintering furnace and vacuum resistance furnace, induction furnace can be divided into ordinary induction furnace and vacuum induction furnace atmosphere; According to the furnace structure, sintering furnace is divided into vertical resistance sintering furnace and horizontal resistance sintering furnace, induction furnace induction furnace can be divided into vertical and horizontal induction sintering furnace; According to the operation properties, resistance sintering furnace is divided into intermittent type resistance furnace and continuous type resistance furnace, induction furnace can be divided into continuous induction sintering furnace and continuous induction sintering furnace. In addition, the induction sintering furnace according to the frequency of use, can be divided into the medium frequency induction furnace (500 hz to 10 KHZ) and high frequency induction furnace (70 ~ 200 KHZ). According to the heating mode, resistance sintering furnace is divided into indirect heating type resistance furnace and direct heating type resistance furnace. Indirect heating type resistance furnace is refers to the current heat produced by the electric heating element, heat transfer by radiation chamber of a stove or furnace temperature and heat the products; Direct heating type resistance furnace is refers to the current through the heated directly by the power supply through the joint products make its heating, for example, used in tungsten, molybdenum, tantalum, and niobium refractory metal, such as high temperature sintering temperatures hanging furnace is a kind of typical direct type resistance furnace heating.
Sintering need to use the pressure and pressure sintering furnace, the furnace is mainly used for thin layer products such as powder metallurgy sintering friction plate, bell type furnace is a kind of typical pressure sintering furnace.
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