Box Furnaces are energy-saving period-operated industrial furnace. They are mainly used for quenching, normalizing, annealing and tempered heating of carbon steel, alloy steel and other workpieces. Suitable for the heat treatment of various small parts, springs and molds.
Box Furnace can carry out medium temperature of 950℃, high temperature of 1200℃ and 1350℃, and ultra-high temperature heat treatment of 1600℃ and 1700℃. It is mainly used for heat treatment such as normalizing, quenching, annealing, and tempering of alloy steel products and various molds, or for high-temperature sintering of diamond saw blades.
In order to prevent the leakage of hot gas in the furnace, the furnace door is designed with two layers of sealing from the inside to the outside. The inner layer is sealed with ceramic fiber rope, and the outer layer is sealed with a silicone rubber sealing ring. In order to extend its service life, a stainless steel cooling water jacket is designed at the furnace opening seal for cooling. The door lock adopts a multi-point handwheel rotation locking mechanism, which can lock evenly around the door at the same time. In addition, the furnace door fixing device is installed on the end face of the furnace and adopts a movable double hinge mechanism, which can move with the free extension of the furnace and has a better sealing effect.
According to the heating method, it can be divided into electric heating, fuel heating and gas heating. They are: Box Resistance Furnace, Fuel-Fired Box Furnace, and Gas-fired Box Furnace.
According to the heat treatment temperature, it can be divided into: medium temperature box furnace at 950℃, high temperature box furnace at 1200℃ and 1350℃, and ultra-high temperature box furnace at 1600℃ and 1700℃.
According to different usages, it can be divided into: medium-temperature box furnace, high-temperature box furnace, ultra-high-temperature box furnace, box annealing furnace, box tempering furnace, box quenching furnace, box forging furnace, hot riveting heating furnace, box Catalyst roaster etc...
The working room is a furnace chamber made of refractory materials, with the heating element placed in it. The furnace and the furnace shell are insulated with insulation materials. The lower end of the furnace opening is equipped with a safety switch that interlocks with the furnace door. When the furnace door is opened, the power supply is automatically cut off to ensure safe operation.
Customized design according to the actual requirement of customers.
Adopting a new type of energy-saving furnace lining, the temperature rises quickly, the empty furnace loss is small, and the energy saving is more than 20% compared with the old product.
The electric furnace has large loading capacity and high productivity. It is especially suitable for heat treatment of small and medium-sized parts. It saves energy up to 20%. The furnace temperature is uniform and is controlled by the digital display automatically. It is convenient to load materials. The sealing between the furnace door and the body is automatic sealing, no manual sealing required, equipped with a chain protection device to prevent malfunctions and accidents caused by operation mistake.
Radiation heat transfer of furnace gas to metal:
mainly after the energy radiated by the furnace gas is transmitted to the furnace wall and the metal surface, part of it will be absorbed and part of it will be reflected back. The reflected heat passes through the furnace gas that fills the furnace chamber, part of it will be absorbed by the furnace gas, and the remaining part will be radiated to the opposite furnace wall or metal, and radiated like this again and again.Radiative heat transfer from the wall and top of the box resistance furnace to the metal:
the inner surface of the furnace wall also absorbs heat in the form of convection, and the heat is still transmitted in the form of radiation.Convection heat transfer of box resistance furnace to metal:
In the existing box resistance furnace chamber, the temperature of the furnace gas is mostly in the range of 800℃-1400℃. When the temperature is around 800℃, the effects of radiation and convection are almost equal. When the temperature is higher than 800℃, the convective heat transfer decreases, while the radiation heat transfer increases sharply.
| Type |
Furnace Chamber Size |
Rated Voltage |
Rated Power |
Rated Temp. |
Heat Up time |
Max. Loading |
| RX3-30-9 | 900x450x350 | 380 | 30 | 950 | 2 | 200 |
| RC3-132-9 | 2200x1100x750 | 380 | 132 | 950 | 3 | 200 |
| RX3-30-6 | 950x450x350 | 380 | 30 | 650 | 1.5-2 | 200 |
| RX3-45-6 | 1200x600x400 | 380 | 45 | 650 | 1.5-2 | 400 |
| RX3-60-6 | 1500x750x400 | 380 | 60 | 650 | 1.5-2 | 800 |
*The output will vary according to different materials, feed particle size and other factors
Company: IDM Metallurgy Trading Co., Ltd.
Group Address: Tangshan City, Hebei Province, China
Whatsapp: +86-15036707993
Our Email
Our phone
+86-15036707993
+86-15036707993
Save Time! Get A Detailed Quotation Quickly.
