Electrical Double Trolley Heat Treatment Furnace , Bogie Hearth
Furnace for Aluminum Parts
1. Application
The RT2-150-6 electric bogie hearth furnace is mainly used for low
temperature heat treatment processing of aluminum plate, aluminum
plate products, etc. We have a wide range heat treatment furnaces
for tempering, annealing, quenching, caburizing, normalizing, and
other processes.
2. Main Technical Parameters
| No. | Item | Technical Parameters |
| 1 | Rated power | 140KW(1-100%) adjustable |
| 2 | Power supply | 415V, 3P, 50Hz |
| 3 | Rated temperature | 600℃(Normal working temperature: 500℃) |
| 4 | Non-load furnace temperature rise speed | ≤0.6 hour to 200℃ |
| 5 | Control zone | 2 zones (front area, middle area, back area) |
| 6 | Effective working size | 2700×1600×1100mm(L×W×H) |
| 7 | Loading basket size | 2540×1525×965mm(L×W×H) |
| 8 | Heating element connection | Ｙ |
| 9 | Temperature uniformity | ±8℃ |
| 10 | Temperature measurement accuracy | ±1℃ |
| 11 | Non-load furnace power consumption | ≤18% |
| 12 | Temperature control method of car bottom furnace | SCR, PID regulator; Shimaden temperature controller with
communication interface, 10 inch touch screen (it can set, record
historical data, storage process, U disk export, screenshots and
other functions) |
| 13 | furnace surface temperature rise | ＜35℃ |
| 14 | Heating element | 0Cr25AL5 (strip) |
| 15 | Bogie face plate | CrMnN heat resistant steel, 30mm thickness, 2 sets |
| 16 | Loading method | Product loaded on the bogie, and then bogie moves into the furnace |
| 17 | Furnace lining | Standard refractory fiber |
| 18 | Furnace door opening method | 1tonElectric hoist up-down, sealed by the door self-weight, 2 sets |
| 19 | Bogie moving method | 3KW reducer drives the wheels in and out, 2 sets |
| 20 | Circulating fan | 3KW air cooling centrifugal fan, 2 sets |
| 21 | Air guide plate | 304 stainless steel plate, 2mm thick |
3.Loading basket Specification
| Loading Basket |
| NO. | Item | Material |
| 1 | Frame | 6# stainless steel angle steel |
| 2 | Stand Column | 18mm stainless steel rod |
| 3 | Plate | 4mm stainless steel |
The loading basket is customize based on each customer’s
requirement. The loading basket is to be placed on the trolley of
the heat treatment.
3.1 furnace shell
The furnace body steel structure is made from 10-12# sectional
steel and ≥3mm steel plates.
3.2 lining
The furnace lining is a full fiber structure, constructed with
high-quality standard refractory fibers fixed by round steel parts.
The aluminum fibers are pre-compressed into blocks (compression
gravity: ≥230Kg/m3 ) and then fixed to the furnace body by round stainless steel
parts.
3.3 furnace door and door up-down system
The car bottom furnace door is comprised of all-fiber lining and
steel structure casing.
Driving method of door: The furnace door is electrically lifted
upward and downward by the hoist.
3.4 bogie
The bogie is comprised of bogie frame, wheels, refractory
bricklaying body, heat resistant bogie hearth plate, heating
elements, and bogie driving mechanism.
bogie structure: It is welded by 14# I-beam steel beam and 10mm
steel plate.
wheel: The wheels are made from ZG55# steel casting. The
transmission shaft is made from 45# steel, and it is heat treated.
bricklaying body: The bogie is built with a heavy high alumina
refractory bricks, light refractory bricks, and heat preservation
bricks. The impacted parts and weight bearing area are bricked
especially with heavy type high aluminum refractory bricks. There
is also free space left for the refractory lining expansion when
heated.
bogie hearth plate: 30mm thick CrMnN heat resistant steel casting
part with max working temperature≤950℃.
bogie moving mechanism: The bogie has a self-moving method. The
reducing gear drives the bogie wheel to move.
Sealing among furnace door, furnace body and bogie: Sealing between
the furnace door and the furnace body is through self-weight
pressure tightening mechanism. The sealing between the bogie and
the furnace body is through soft special shape bricks and fiber
cotton block.
3.5 heating element
heating element: The 0Cr25AL5 resistance corrugated shape alloy
resistance strips are mounted in 2 side walls, back wall, furnace
door and bogie bottom of the heat treatment oven. There are 2
heating zone. All lead-out conductor bars are made of φ16 0Cr25AL5
material.
3.6 electrical control system
Temperature control: the trolley heat treatment furnace adopts
Japanese Shimaden intelligent temperature controller to control the
temperature which has self-tuning function to calculate the ideal
PID parameter and achieve a temperature stability. The temperature
controller has the functions of over-temperature alarm and thermal
couple breakage protection.
3.7 hot air circulating system
The hot air circulation is mainly composed of 2 centrifugal fans
and the air guide plate in the furnace for heat treatment system.
4.Structural Introduction
The RT2-150-6 bogie hearth furnace for heat treatment is mainly
comprised of furnace shell, lining, furnace door, furnace door
lifting mechanism and door compression mechanism, bogie, bogie
traction mechanism, sealing between furnace body and bogie, heating
element and fixed device, and temperature control system.
5. Supply Scope
| No. | Item | Q’ty | Notes |
| 1 | Furnace body | 1 set | Including fan and stainless steel air guide over |
| 2 | Bogie | 2 sets | |
| 3 | Electrical driving system | 4 sets | 2 sets for bogie and 2 sets for door |
| 4 | Heating element | 1 set | Resistance strip |
| 5 | Temperature control system | 1 set | |
| 6 | Control cabinet | 1 pc | |
| 7 | Temperature controller | 2 pcs | SR13 |
| 8 | SCR | 6 pcs | |
| 9 | Compensation lead wire | 40 meters | |
| 10 | Thermal couple | 2 pcs | 0-1000 |
| 11 | Electrical components | 1 set | SCR, air switch, ammeter, voltmeter, heat relay, and switches |
