Skrzynki gazowe z zamykaną pokrywą do modeli N 7/H – N 87/H do pozostawienia w piecu

Working with Protective Gas Boxes with Hinged Lid in continuous Operation

In the case of successive protective gas heat treatment of individual parts, a gassing box is recommended, which remains in the furnace. For charging, the box is equipped with a flap lid to the front. The lid closes without a sealing profile against the oblique position of the box opening. Larger gas losses in comparison with removable boxes can be expected. For the protective gas supply the pipe goes through a bore on the rear wall of the furnace. For charging, the box is opened in the furnace using a draw hook and the workpieces are placed into the box. The box is continuously flushed with non-flammable protective and reactive gases such as argon, nitrogen or forming gas 95/5. Due to a slight overpressure within the box the protective gas is vented off through the hinged lid. After the heat treatment the box is opened using a draw hook and the workpieces are removed.

• Tmax 1100 °C
• For non-combustible protective and reactive gases argon, nitrogen and forming gas (observe national regulations)
• Protective gas box with flap lid and gas supply from the rear wall
• Protective gas connection via quick coupling with hose connector (inner diameter 9 mm)
• Piping for gas inlet and outlet through the rear wall
• Front flap lid which opens downwards
• Heat-resistant alloy 314 (AISI)/(DIN material no. 1.4841)
• Charge thermocouple type K for temperature display or charge control
• The furnace will not be equipped with a charging plate (protective gas box is permanently installed)