Patent ID: 9074870
Filing Date: 2015-07-07
Classification: B22F,F27B,G01B

Abstract:
1. A device for sintering a ceramic or powder metallurgical object, comprising: a high temperature furnace, in which the ceramic or powder metallurgical object is held and heated, at least one gap in a wall of the furnace; a laser light source; and a detector for detecting the light from the laser light source scattered by the ceramic or powder metallurgical object, the laser light source and detector being arranged on the same side of the ceramic or powder metallurgical object in such a way that a surface profile at least of a subregion of the ceramic or powder metallurgical object is determined through the at least one gap on the basis of the laser light scattered by the ceramic or powder metallurgical object, wherein the laser light source and detector are implemented by a laser triangulation sensor, which images laser light onto the surface of the ceramic or powder metallurgical object, and wherein the laser light scattered by the ceramic or powder metallurgical object is detected by a position sensitive detector through the at least one gap, and wherein the light source and the detector are arranged above the at least one gap, further comprising a radiation thermometer for determining a thermal surface profile, the thermal surface profile comprising thermal data or thermal and geometric data, at least of a subregion of the ceramic or powder metallurgical object in the furnace, wherein the radiation thermometer, light source and detector are arranged displaceably along the at least one gap on a micro-positioning unit; and a rotary table driven by a motor in the furnace which is designed in such a way that the movement of the micro-positioning unit and of the rotary table driven by the motor is performed synchronously.