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Single chamber horizontal / vertical annealing vacuum furnace
The vacuum double-chambers low-pressure carbonitriding oil quenching furnace has various functions including carburizing, carbonitriding, oil quenching and pressure air-cooling. Is mainly used for quenching, annealing, tempering the die steel, stainless steel, high-speed steel, high-alloy steel tools; and carburizing, carbonitriding quenching the medium or low-carbon alloy steel. It can used for one-time carburizing, pulse carburizing and other carburizing and cabonitriding processes.
Characteristics
1.The heating elements are arranged in multi-zones and the temperature uniformity is limited to ±3 ºC
2.Using graphite felt / metal screen as heat insulation layer in heating chamber
3.Using double fans to provide convective flow to improve the heating rate and reduce the heating time.
4.Smart and easy for process programming, stable and reliable mechanical action , automatically, semi-automatically or manually alarming and displaying the faults.
5.Frequency conversion control gas quenching fans, 9 points temperature survey. several grades and isothermal quenching.
6.With whole AI control system and an extramanual operating system.
Standard model specification and parameters
| Model | PJ-TH557 | PJ-TH669 | PJ-TH7711 | PJ-TH8812 | PJ-TH9916 |
| Effective Hot Zone LWH (mm) | 500*500*700 | 600*600*900 | 700*700*1100 | 800*800*1200 | 900*900*1600 |
| Load Weight(kg) | 300 | 500 | 800 | 1200 | 2000 |
| Maximum Temperature(ºC) | 1100 | ||||
| Temperature control accuracy(ºC) | ±1 | ||||
| Furnace temperature uniformity(ºC) | ±5 | ||||
| Maximum Vacuum Degree(Pa) | 4.0 * E -1 | ||||
| Pressure raise rate (Pa/H) | ≤ 0.5 | ||||
| Gas Cooling pressure (Bar) | 2 | ||||
| Furnace structure | Horizontal, single chamber | ||||
| Furnace door opening method | Hinge type | ||||
| Heating elements | Graphit heating elements | ||||
| Heating chamber | Composition structure of Graphit hard felt and soft felt | ||||
| PLC & Electric elements | Siemens | ||||
| Thermal couple | N type | ||||
| Temperature controller | EUROTHERM | ||||
| Vacuum pump | Mechanical pump and roots pump | ||||
Customized optional ranges
| Maximum temperature | 700-1100 ºC | ||||
| Maximum temperature degree | 4.0*E-1 / 6.7 * E -3 Pa | ||||
| Gas Cooling pressure | 2-10 Bar | ||||
| Furnace structure | Horizontal,Vertical, PIT | ||||
| Door opening method | Hinge type, Lifting type,Flat type | ||||
| Heating elements | Graphit heating elements, Mo heating elements | ||||
| Heating chamber | Composed Graphit felt, All metal reflecting screen | ||||
| Gas quenching flow type | Honrizontal alternating gas flow;Vertical alternating gas flow | ||||
| Vacuum pumps | Mechanical pump and roots pump; Mechanical, roots and diffusion pumps | ||||
| PLC & Electric elements | Siemens;Omron;Mitsubishi;Siemens | ||||
| Temperature controller | EUROTHERM;SHIMADEN | ||||
