Description
The Geer type Oven evaluates aging of materials in hot air atmosphere with a fixed air change rate. Air change rate is measured by methods of electric power consumption.
The Geer type Oven is widely used for evaluating thermal aging of plastics and rubber by the oven method. There are many kinds of thermostatic chamber generally known as the “oven”. Problems have often been encountered in use of these ovens – if these ovens which differ in their mechanisms were used carelessly, the results of testing differ very widely. TOYO SEIKI’s Geer type Oven has been especially designed and manufactured exclusively for aging tests and not as an ordinary drier or thermostatic chamber. Important factors such as temperature control precision, temperature distribution, temperature recovery after opening the door, air speed inside the oven, air change rate and sealing mechanism of the intermediate chamber, etc. have been fully taken into consideration in designing and constructing this oven.
Specifications
| Model | 45 series | 60 series |
| Inside dimensions | W450×D450×H500mm | W600×D600×H600mm |
| Temperature range | RT+20 to 300°C | |
| Inside oven wind speed | 0.5±0.1m/s | |
| Air change rate | 2 to 20 times/h
Note: Adjustable up to 50 times/h (60 series) or 60 times/h (45 series) |
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| Dimensions | W1090×D800×H1430mm | W1170×D920×H1550mm |
| Mass (Approx.) | 200kg | 290kg |
| Power supply | Three-phase, AC200V, 50/60Hz, 3.8kVA (or specify) | Three-phase, AC200V, 50/60Hz, 4.8kVA (or specify) |
Related standards
| ISO 188 | Rubber, vulcanized or thermoplastics-Accelerated ageing and heat resistance tests |
| JIS K 6257 | Rubber, vulcanized or thermoplastic-Determination of heat ageing properties |
| ISO 45717 | Polypropylene and propylene-copolymers-Determination of thermal oxidative stability in air-Oven method |
| JIS K 7212 | Plastics-Determination of thermal stability of thermoplastics-Oven method |
| JIS C 3005 | Test method for rubber or plastic insulated wires and cables |
Brochure
