Vacuum Electric Ovens
This high-temperature electric oven is designed to sinter and anneal metallic and ceramic specimens under high vacuum and highly pure Ar atmosphere. It is internally equipped with tungsten mesh heaters, reflectors and cooling layers. The turbo molecular pump, vacuum pump and operation panel are arranged to heat up, hold and pull down temperature and perform a host of other operations automatically.
By operating the gate valve and cylinder mounted on the pass-box, specimens can loaded/unloaded in/out the oven through the pass-box. Accordingly, operations can be executed without disturbing the oven atmosphere, thus shortening the amount of time needed to attain a high vacuum.
|Degree of vacuum in the oven||1.33 × 10⁻⁴pa (with no load)|
|Temp. heat-up rate||Within 100~120 min from room temperature to 1,700°C|
|Materials||Heaters : Tungsten mesh heaters|
Main body : SUS 304
|Effective internal dimensions||φ100 × H150 mm|
|Cooling water||20 l／min at 25°C 2 kg/cm²|
|Cooling time||Within 120 min to 100°C|
|Heaters||20 V × 30 kW (Step-down transformer used)|
|Turbo molecular pump||200V AC × 0.48 kVA|
|Coarse evacuation vacuum pump||200V AC × 0.75 kW|