1. Principal Specifications
1) Type: Vertical shape, double-wall water cooling system
2) Effective zone dimensions: dia 200 x 200(H)mm
3) Loading capacity: 10kg
4) Temperature:
- Max. 2200 ℃(at ratings of 30 minutes at atmospheric pressure)
- Nor. 2100℃(at atmospheric pressure)
- Max. 1800℃(at Vacuum, Reduced pressure control Partial control)
- Max. 1450℃(at forced circulation cooling)
- Max. 800℃(at dewaxing)
- Temperature uniformity: within 10℃ (at vacuum with empty state, in effective zone 800, 950℃ :measured at 3 points with K thermocouple)
- Heating power: Approximately 30 kW
- Heating time: Within 120 minutes from room temperature to 2100℃ (at N2,0.1MPa？G, with empty state, full power, temperature at the controlling point)
- Thermocouple: WRe 5.26
5) Ultimate vacuum: 7x10-3 Pa？A (at room temperature with empty state, after degassing)
- Leak amount: 1.33x10-4 Pa？m3/s (1 lusec) or less
- Evacuation time: Within 30 minutes from atmospheric pressure to 7x10-2 Pa？A (at room temperature with empty state after degassing)
6) Dewax method: This method to take out the wax with a gas which is supplied into graphite tight box
- Gas to be introduced: N2, Ar
- Operating process: Introduced gas
- Dewaxing: Reduced pressure flow with RP evacuation:(N2)
7) Sintering
- Vacuum: RP and MB evacuation
- Partial control: 60~700 Pa？A (N2), 60~400 Pa？A (Ar)
- Reduced pressure control: 2~50 kPa？A(N2, Ar)
- Pressure control: 0.1~0.9 Mpa？G (N2, Ar)
- Vacuum: RP and MB evacuation
- Reduced gas sealing: 60~86 kPa？A (N2, Ar)
- Gas sealing: 0.1~0.9 MPa？G (N2, Ar)
- Forced circulation: 0.1~0.5 MPa？G (N2, Ar)
- Cooling time: Approximately 15 minutes from 1450℃ to150℃ (at empty state, Forced circulation 0.5 MPa with N2 and temperature at the controlling point)
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