Secondary circuit for device for producing three-dimensional metal object used in beam fusion plant, has return line that is provided for recycling of powder from overflow container in main circuit of device

摘要

The secondary circuit (10) has an overflow container (20) that is provided for receiving excess powder from a space (120) of the device (100). A return line (30) is provided for recycling of powder from the overflow container in a main circuit (110) of the device. An overflow pipe (22) is provided for transfer of powder from installation space into overflow container. A shutoff valve (24) is provided at overflow pipe. The overflow container is provided with level sensor (26). Independent claims are included for the following: (1) device for producing three-dimensional metal object; and (2) method for handling excess powder in device for producing three-dimensional metal object.