Patent ID: 9168604
Filing Date: 2015-10-27
Classification: B23K

Abstract:
1. A device for thermally treating workpieces, in particular printed circuit boards or the like that are equipped with electrical and electronic components, comprising at least one process chamber in which at least one heating or cooling zone is formed or disposed, wherein a temperature-controlled gaseous fluid, which is heated by a heating device, can be introduced into the heating or cooling zone, wherein the workpieces pass through the heating or cooling zone and heat is transferred particularly in a convective manner between the workpieces and the temperature-controlled fluid, and comprising at least one temperature measuring element disposed in the process chamber, comprising at least one sensor element that has a defined mass and is disposed in the process chamber, such that heat is convectively transferred between the sensor element and the fluid, and an apparatus provided for cooling or heating the sensor element, the apparatus being separate and distinct from the heating device, wherein the temperature of the sensor element can be measured by the temperature measuring element.