DM type three-phase buried electrode salt bath furnace transformerDetailed product description：

The buried electrode salt bath furnace is a national standard energy-saving periodic operation furnace, which is used to heat metal parts in melted salt solution or mixed salt solution for quenching, annealing, tempering, normalizing, non oxidizing heating, carburizing and other heat treatments. This series of salt furnaces is divided into three categories: low temperature, medium temperature, and high temperature, with working temperatures of 150-550 ℃, 550-1000 ℃, 1000-1350 ℃, respectively

The DM type three-phase buried electrode salt bath furnace has a rectangular structure. The outer shell is welded with angle steel and steel plates, and an inner pot made of steel plates is placed inside. The inner pot is a salt tank composed of standing bricks and standard bricks. The inner pot is mainly used to prevent molten salt from penetrating into the insulation layer and outside the salt tank. When the salt tank is damaged, it can be lifted out for repair. There are insulation bricks and insulation powder filled between the inner pot and the furnace shell. The electrodes are buried at the bottom of the salt tank, with one surface in contact with the bath salt and the other three surfaces buried in refractory bricks. Each electrode is connected to a copper plate, which protrudes from the top of the salt tank and connects to the transformer to form a circuit. This structure completely solves the leakage problem, as the electrodes are millimeters away from the bottom of the groove, which can avoid short circuits between the two electrodes caused by slag deposition. This greatly extends the service life of the furnace body and electrodes.

The salt bath electric furnace uses salt as the heat transfer medium, and different compositions of salt or mixed salt can be selected according to different working temperatures. Salt is non-conductive before melting, so a starting electrode must be used to melt the salt furnace. Due to the continuous heat generated by the current passing through the conductive salt, the molten state can be maintained. Under the action of electromagnetic force, the electrode circulates the molten salt through natural convection and electromagnetic stirring, so the workpiece can be quickly and uniformly heated. There is an exhaust device installed on the furnace side, which is connected to the exhaust pipe in the workshop to eliminate harmful gases generated by the salt bath furnace. The electric furnace control cabinet is supplied together with the salt furnace to control the temperature of the salt furnace. The control cabinet is equipped with a temperature measurement and control meter for indicating the temperature. It is connected to a thermocouple immersed in the salt tank through a compensating wire, which can indicate, record and automatically adjust the temperature.

Technical parameters

model	Rated power (kw)	Rated voltage (V)	phase number	Rated temperature (℃)	Working size (mm)	Maximum loading capacity kg
DM-35-6	thirty-five	three hundred and eighty	three	six hundred and fifty	300×350×600	one hundred and twenty
DM-50-6	fifty	three hundred and eighty	three	six hundred and fifty	350×450×600	one hundred and fifty
DM-75-6	seventy-five	three hundred and eighty	three	six hundred and fifty	400×550×650	one hundred and eighty
DM-100-6	one hundred	380 V	three	650℃	400×800×650	two hundred and ten
DM-35-8	thirty-five	380 V	three	850℃	250×300×600	ninety
DM-50-8	fifty	380 V	three	850℃	300×350×600	one hundred
DM-75-8	seventy-five	380 V	three	850℃	350×450×665	one hundred and twenty
DM-100-8	one hundred	380 V	three	850℃	400×550×665	one hundred and forty
DM-35-13	thirty-five	380 V	three	1300℃	200×200×500	eighty
DM-50-13	fifty	380 V	three	1300℃	250×300×500	one hundred
DM-75-13	seventy-five	380 V	three	1300℃	300×350×500	one hundred and ten