Pusher-type gas-fired isothermal normalizing line
1. Used for tempering and quenching heat treatment of workpieces, as well as isothermal normalizing treatment.
2. The quenching furnace is powered by a thyristor-controlled power regulator, with intelligent instruments for temperature control and equipped with an alarm function.
Category:
Push-plate (boat) type (controllable protective atmosphere) tempering (normalizing) automatic line
Keywords:
box-type heat Fire troug
Product Description
I. Uses and Features:
1. Used for tempering and quenching heat treatment of workpieces, as well as isothermal normalizing treatment.
2. The quenching furnace is powered by a thyristor-controlled power regulator, with intelligent instruments for temperature control and an alarm function.
3. Each heating furnace employs dual thermocouples and dual temperature controllers, ensuring uniform furnace temperatures: ±8℃ for quenching furnaces and ±5℃ for tempering furnaces.
4. The quenching tank is equipped with a medium circulation and stirring system as well as a temperature control device, ensuring uniform hardness.
5. The oil-quenching setup with a cleaning tank is equipped with spray cleaning, strong-air drying, and temperature-control devices, ensuring thorough cleaning. PAG (water-based) quenching does not require a cleaning tank.
6. The program control system uses an imported programmable logic controller with reliable performance.
7. The controlled-atmosphere heating furnace features a carbon-resistant brick lining (typically, the upper part of a general tempering and normalizing furnace employs an all-fiber composite structure, while the furnace bottom uses a composite brick structure). Heating is achieved via electric (or natural gas) radiant tubes. Electric heating utilizes a PID power controller (natural gas heating employs pulse/proportional PID control for combustion). Temperature is precisely regulated by intelligent instruments, ensuring furnace temperature uniformity within ±8°C. The furnace also incorporates closed-loop control of the carburizing (protective atmosphere) environment inside the furnace.
8. The controlled protective atmosphere (carburizing atmosphere) can be either an endothermic atmosphere or a drip-feed atmosphere.
9. The carbon potential control system consists of a carbon potential controller, an oxygen probe, and a regulating valve, which are used to control the carbon potential of the furnace gas in the carburizing furnace with a control accuracy of ±0.05%. In general, for quenching and tempering furnaces using protective atmospheres, the use of a carbonizing (protective atmosphere) atmosphere is not necessary.
10. The control system is equipped with a touch screen that allows for manual and automatic operation and monitoring of equipment movements. It can also provide fault alerts and audible/visual alarms. Process parameters and operational instructions can be entered directly on the touch screen.
II. Production Line Composition
1. Controllable Protective Atmosphere Tempering (Normalizing) Production Line: This line consists of a heating furnace, a quenching oil tank system (normalizing rapid-cooling chamber), a cleaning machine, a tempering furnace, a cooling tank, a transmission mechanism, a temperature-controlled PLC control system, protective atmosphere control, and a touch screen.
2. Quenching and Tempering (Normalizing) Production Line: Composed of a quenching heating furnace, a quenching PAG tank system (normalizing rapid cooling chamber), a tempering furnace, a cooling tank, a transmission mechanism, a temperature-controlled PLC control system, a touch screen, and other components.
| Model | AXTP-500 | AXTP-800 | AXTP-1000 | AXTP-1200 | AXTP-1500 |
| Maximum output | 500kg/h | 800kg/h | 1000kg/h | 1200kg/h | 1500kg/h |
| General production capacity | 400kg/h | 600kg/h | 800kg/h | 1000kg/h | 1200kg/h |
| Material feeding cycle | ~15 min/plate | ~12 min/disc | ~10 min/disc | ~9 min/disc | ~9 min/disc |
| Heating furnace model | AXTP9-500 | AXTP9-600 | AXTP9-1000 | AXTP9-1200 | AXTP9-1500 |
| Maximum Design Temperature of the Heating Furnace | 950℃ | 950℃ | 950℃ | 950℃ | 950℃ |
| Heating furnace material tray dimensions: length × width × thickness | 620×450×50 | 700×500×50 | 700×560×50 | 700×560×50 | 800×600×50 |
| Electric heating power of the furnace | 180kw | 320kw | 360kw | 400kw | 450kw |
| Installed power for natural gas heating in the furnace | 420kw | 720kw | 800kw | 960kw | 1080kw |
| Quenching tank empty volume | ~12 m³ | ~14 m³ | ~14 m³ | ~14 m³ | ~14 m³ |
| Tempering furnace model | AXTP7-500 | AXTP7-600 | AXTP7-800 | AXTP7-1000 | AXTP7-1200 |
| Maximum design temperature of the tempering furnace | 700℃ | 700℃ | 700℃ | 700℃ | 700℃ |
| Tempering furnace料筐 dimensions: length × width × thickness | 620×500×400 | 700×500×400 | 700×560×400 | 700×560×400 | 800×600×400 |
| Tempering furnace electric heating power | 135kw | 210kw | 270kw | 320kw | 360kw |
| Furnace for tempering—natural gas heating installed power | 300kw | 420kw | 660kw | 720kw | 800kw |
| Eliminate the volume of the cooling tank for eliminating temper embrittlement | ~8 m³ | ~10 m³ | ~10 m³ | ~10 m³ | ~10 m³ |
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