Graphite High Temperature Vacuum Steel Quenching Tempering Machine Up To 1350℃
High Temperature Vacuum Steel Quenching and tempering machine up to 1350℃
The Vacuum Steel Quenching and tempering machine is mainly used in vacuum bright quenching and sintering, brazing of tool steel, die steel, elastic alloy, stainless steel, 3D additional material, etc. The furnace is mainly composed of a pressure tank, heating room, vacuum system, electric control system, air inflation system, water cooling system, pneumatic system, and carrier cart, etc.
- The heating chamber is composed of graphite heater, graphite soft felt and hard felt, the max temperature is 1320℃.
- The multiserial graphite spray nozzle located inside the heating chamber along with the induction inwall. The gas uniform sprayed from the spray nozzle during gas quenching.
- The material platform is composed of graphite support, hearth, and Al2O3 sticker. This structure will prevent the adhesion between the platform and hearth during high temperature.
- Gas cooling system: which is composed of high press wheel blower, multistage high-efficient copper heat exchanger and duct deflector. Filling high purity N2 or Ar during gas cooling, spray to the workpiece through duct deflector to achieve workpiece uniform cooling.
- The gas cooling pressure is adjustable from 1-6 bar.
- Max cooling rate: from 1200℃ to 300℃ less than 5min. (The cooling water temperature is lower than 35℃)
Vacuum Steel Quenching and tempering machine Technical Specifications |
|
| Furnace structure | Single chamber, horizontal |
| Furnace door closing mode | Fast tighting by hinge and gear ring, pneumatic drving |
| Chamber size | 450x300x300mm(L*W*H) |
| Max loading capacity | 80kg (Including tooling) |
| Max temperature | 1320 ℃ (less than 10 minutes) |
| Working temperature in vacuum | 500-1250℃ |
| Vacuum parameters | ● Ultimate vacuum level 4×10-1Pa
● Working vacuum level 4Pa ● Pressure rise rate (Complete drying): ≤3Pa/h ● Pumping speed (To working vacuum): ≤20 min ● Partial pressure range: 10-800Pa ● Max inner pressure (Absolute pressure): ≤6 bar |
| Cooling parameters | ● Cooling speed (1200℃ to 300℃, 6bar, ≦700KG):5mins
● Air tube (18 pcs main,6 pcs small),material: seamless tube ● Heat exchanger:red copper, finned tube ● Heat exchanger water feeding pattern: back in, front out |
| Input voltage | 380V 3P, 50Hz |
| Total power | 125kVA |
| Rated heating power | 80KW |
| Cooling fan power | 45kW |
| Cooling water | Preassure of cooling water: 0.2-0.3MPa |
| Total weight | Approx 3 tons |
| Floor area | Approx 20m3 |
| Cooling gas | N2/Ar, purity over 99.99% |
| Compressed air pressure | 0.4-0.6MPa |
| Control system | ● Temp control mode: Programmable auto single zone
temperature control ● Control mode: Full-automatic/Manual ● Cooling mode: air cooling/natural cooling |
- Other sizes can be customized.
Vacuum Steel Quenching and tempering machine standard model:
| Model | Chamber size(mm) | Max.Temp (℃) |
Capacity (kgs) |
Temperature uniformity(℃) | Power (kW) |
Ultimate vacuum |
| BR-QCL-334 | 300*300*450 | 1320 | 80 | ±5 | 125 | 4×10^(-1) |
| BR-QCL-446 | 400*400*600 | 1320 | 200 | ±5 | 145 | 4×10^(-1) |
| BR-QCL-557 | 500*500*700 | 1320 | 300 | ±5 | 190 | 4×10^(-1) |
| BR-QCL-669 | 600*600*900 | 1320 | 500 | ±5 | 282 | 4×10^(-1) |
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