Thermal Process Technology
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| Annealing envelopes |
- Annealing envelopes useful up to Tmax 1200 °C
- For hardening small parts
- Airtight lock by means of folds of a fold lock or suitable tools
- Rapid heating of the foil binds the oxygen in the annealing envelope preventing virtually all oxidation and decarburizing
- Rapid quenching in air, oil or water, ensuring high dimensional accuracy
- Workpieces are placed as tightly as possible in the annealing envelope
- Envelopes made of ultra-thin stainless steel heat treating foil, welded on three sides, for single use
| Article no. | Dimensions in mm | | Article no. | Dimensions in mm |
| | Width | Length | | | Width | Length |
| 491001000 | 63 | 127 | | 491004000 | 203 | 254 |
| 491001501 | 63 | 203 | | 491004501 | 203 | 355 |
| 491002000 | 101 | 152 | | 491005001 | 254 | 304 |
| 491002501 | 101 | 228 | | 491005500 | 254 | 406 |
| 491002999 | 152 | 203 | | 491006000 | 304 | 355 |
| 491003500 | 152 | 304 | | 491006500 | 304 | 457 |
