ALD Vacuum Technologies GmbH | Date: 2014-04-15
A process and apparatus for thermochemically hardening workpieces is provided incorporating the following steps, carried out in a variable sequence: one or more carburizing steps, each in a carbon-containing gas atmosphere at a pressure of less than 50 mbar, the workpieces being held at temperatures of 900 to 1050 C.; if appropriate, one or more diffusion steps, each in a gas atmosphere at a pressure of less than 100 mbar; and one or more nitriding steps, each in a nitrogen-containing discharge plasma at a pressure of less than 50 mbar, the workpieces being held at temperatures of 800 to 1050 C.
ALD Vacuum Technologies GmbH | Date: 2010-09-06
The invention relates to a method and device for thermally treating workpieces, the device including a cooling chamber and two or more cementing chambers in which the workpieces are heated to a temperature of 950 to 1200 C. by means of direct heat radiation from a heating device.
ALD Vacuum Technologies GmbH | Date: 2013-02-13
This invention relates to a method for decontaminating radioactively contaminated material, for example construction waste. The material is comminuted by means of voltage pulses and can be divided with a high degree of selectivity into non-contaminated or only weakly contaminated material and contaminated remainder. The majority therefore represents non-contaminated or only weakly contaminated waste material which can be disposed of much more easily than the contaminated remainder. Therefore, the method is particularly suitable for reducing the volume of radioactive waste material which is subject to stringent safety requirements in respect of its storage and disposal and therefore its storage and disposal incur high costs.
ALD Vacuum Technologies GmbH | Date: 2011-04-20
An apparatus for coating substrates with a coating material is disclosed. The apparatus includes a frame and a crucible arrangement including a first crucible and a second crucible disposed on the frame. Only one first shaft is associated with the first crucible and only one second shaft is associated with the second crucible, where the only one first and second shafts are disposed in the frame beneath the first and second crucibles, respectively. Only one first lifting device is associated with the only one first shaft and only one second lifting device is associated with the only one second shaft, where the only one first and second lifting devices are disposed in the frame. The only one first and second shafts and the only one first and second lifting devices are laterally displaceable with the frame.
ALD Vacuum Technologies GmbH | Date: 2015-10-01
A remelting furnace is disclosed. An electrode rod drive with an electrode rod, as well as a retaining ring to retain a high-current cable, are arranged on a platform which is located on a weighing cell. Even though the position of the high-current cable changes during lowering of the electrode rod supporting a consumable electrode, the recorded weight portion of the high-current cable remains the same, which means that ultimately the change in the weight of the consumable electrode can be determined with the weighing cell.