Introduction to the salt bath furnace thermocouple

Introduction of salt bath furnace thermocouple salt bath furnace, Salt bath furnace thermocouple) Refers to the molten salt solution was used as heating medium, the workpiece in salt solution in heating furnace. Salt - salt bath furnace By molten salt bath furnace of liquid as a heating medium, the artifacts into the liquid salt heating furnace ( Can pass the metal electrode in the salt bath heating) 。 According to the working temperature of the furnace, usually choose sodium chloride, potassium chloride, barium chloride, sodium cyanide, * * *, sodium nitrate, potassium nitrate salts as heating medium. Salt bath furnace heating speed, temperature uniformity. Remain the salt within the liquid heating workpiece, the workpiece when the surface with a layer of salt membrane, so can prevent the surface oxidation and decarburization. Salt bath furnace can be used for carbon steel, alloy steel, tool steel, die steel and aluminum alloy such as quenching, annealing, tempering, cyanide, aging heat treatment, such as heating, also can be used in precision forging steel less oxidation heating. Salt bath furnace heating medium steam harmful to human body, must be ventilated. Salt bath furnace part and external heated hot type two kinds big. Is divided into internal salt bath furnace electrode salt bath furnace and electric heating element salt bath furnace two kinds. Electrode salt bath furnace, Salt bath furnace thermocouple) Through the metal electrodes will be low pressure ( 5. 5 ~ 36 v) Large current ac into furnace, electric current flows through the salt solution. Salt solution is a heating element, and the workpiece heating medium. Salt bath temperature in salt solution composition and different, generally between 150 ~ 1300 ℃. The role of the magnetic field can make the salt solution circulation turn, is advantageous to the salt bath temperature uniformity, and can improve the heating speed of workpiece. By electrode, electrode salt bath furnace refractory lining, sealed cans, insulation blanket of blast furnace and metal shell, by special transformer power supply. Because of solid salt is not conductive, when blow-in to start sending electrode, the first part using the heat resistance of starting electrode melt salt, then connect the electrode made by molten salt heating current work. Main electrode has a plug-in and embedded type two kinds of structure forms. 1) plug electrode, electrode from the front insert in furnace. The electrode structure is simple, easy to loading and unloading. (2) the embedded electrodes, electrode buried in salt, not contact with the air, a longer service life. With the electrode furnace volume utilization factor is high, but the electrode remove more difficult. Two kinds of electrodes can be carbon steel or alloy steel forging, casting. Dear customer: our company has a platinum rhodium thermocouple, armoured thermocouple, tungsten-rhenium thermocouples products, you can call our company service special line over the web for more product details, perfect service is our endless pursuit of the United States, welcome new and old customers trust our products of choose and buy, we will serve you wholeheartedly!