Tempering
Rotary hearth furnace with hardening press
| Ofentemperaturen | max 950 °C |
| Aufheizleistung | 500 kg/h |
| Chargengewicht | max. 50 kg |
| Chargenabmessung | 500 x 500 x 150 mm (L x B x H) |
| Beheizung | Erdgas-Rekuperator-Brenner im Strahlrohr |
| Ofenatmosphäre | Endogas / Stickstoff |
The rotary furnace is loaded or unloaded through a portal on two levels. The components are transferred to the hardening press. Directly afterwards, the components are linked to the washing machine and finally to the belt tempering furnace with post-cooling section.
Push-through gas carburizing system
| Temperaturen im Ofen | max 980 °C |
| Heizleistung | 1.500 kg/h |
| Gewicht der Charge | max. 380 kg |
| Abmessungen der Charge | 650 x 650 x 650 mm (L x B x H) |
| Heizung | Erdgas-Rekuperator-Brenner im Strahlrohr |
| Atmosphäre des Ofens | Endogas / Stickstoff |
| Aufkohlungskapazität | bei 0,2 mm -> 1.500 kg/h bei 0,8 mm -> 700 kg/h bei 1,2 mm -> 350 kg/h |
Furnace system consists of the following assemblies:
Transport line with loading & unloading
Pre-oxidation furnace
Gas carburizing furnace
Oil quenching bath
Washing machine
Tempering furnace
Puncture hardening system
| Ofentemperaturen | max 930 °C |
| Aufheizleistung | 100 kg/h |
| Chargengewicht | max. 25 kg |
| Chargenabmessung | 300 x 300 x 300 mm (L x B x H) |
| Beheizung | indirekte Elektroheizung |
| Ofenatmosphäre | Ammoniak |
The furnace system consists of the following assemblies:
Loading
Vacuum lock
High temperature furnace with ammonia splitter
Oil bath
Unloading
Activation furnace
| Ofentemperaturen | max. 500 °C |
| Aufheizleistung | 250 kg/h |
| Chargengröße | 800 x 700 x 400 mm (L x B x H) |
| Beheizung | direkte Elektroheizung |
| Prozessgas | Ammoniak |
| Prozessfluid | Tetrachlorethen |
| Sicherheits- Spülgas | Stickstoff |
The activation plant is used to remove the passivating metal oxide layer from stainless steel workpieces. This is necessary in order to be able to carry out a nitriding process and obtain a hard surface. Depending on the shape and size of the workpieces, they are brought into the treatment room in baskets or charging racks.
Roller hearth furnace for bainitizing
| Ofentemperaturen | max. 930 °C (Austenitisierungsofen) |
| Durchsatzleistung | bis 600 kg/h |
| Chargengewicht | 50 kg Schüttgut in Glühkörbe |
| Chargengröße | 750 x 750 x 150 mm |
| Beheizung | Erdgas-Rekuperator-Brenner im Strahlrohr |
| C-Pegel | 0,1 - 0,8 |
| Atmosphäre | Stickstoff / Methanol |
| Abschrecken & Auslagern | max. 400 °C unter Salz |
| Beheizung | Elektroheizung |
The austenitizing furnace is part of a fully automated heat treatment plant with upstream & downstream processes, such as loading & unloading, pre & salt washing, and drying and weighing. The furnace is equipped with an inlet lock and is directly connected to the salt quench bath.