The disclosure includes a temperature measuring device and a temperature measuring method for measuring the temperature of molten metals. The temperature measuring device includes a temperature sensing element, a support tube, a connecting tube and an exhaust structure. The temperature sensing element is a cermet tube with a closed end and an open end, and can sense the temperature of a molten metal and emit stable thermal radiation energy based on the blackbody cavity principle when being extended into the molten metal. The open end of the cermet tube is fixedly connected to one end of the support tube, the cermet tube is communicated with the support tube, and the other end of the support tube is fixedly connected with the connecting tube. The exhaust structure is used to discharge the smoke inside the cermet tube and the support tube.

An additive manufacturing temperature controller/temperature sensor uses one or more spectrophotometric sensors to monitor temperature of successive layers and preferably localized sections of successive layers of a melt pool, and transients thereof, of an object being generated for the purpose of dynamic control of the additive manufacturing device and/or quality control of the generated object manufactured with the additive manufacturing device. Generally, the additive manufacturing temperature controller/sensor apparatus monitors temperature of a section of the object during manufacture as a function of wavelength, time, position, and/or angle to determine melt extent in terms of radius and/or depth.

The present invention relates to a method and a system for determining a temperature value of a molten metal bath. The method according to the invention has been proven to be especially suitable for repeated determinations of temperature values; i.e. the method allows for multiple measurements with repeatedly newly generated leading tips of the optical cored wire.

The present invention relates to a method and a system for determining a series of at least two temperature values of a molten metal bath with a device comprising an optical cored wire and a detector. The method according to the invention has been proven to be especially suitable for multiple repeated measurements, wherein the temperature of the molten metal bath changes between the measurements.

A method for feeding a cored wire into molten metal contained in a vessel comprises positioning the cored wire at a first position wherein a leading tip of the cored wire is proximate an entry point of the vessel, the entry point being above a surface of the molten metal, the cored wire comprising an optical fiber and a cover laterally surrounding the optical fiber; feeding the cored wire at a first speed for a first duration from the first position to a second position wherein the leading tip of the cored wire is immersed within the molten metal and lies within a measuring plane, such that a leading tip of the optical fiber projects from the cover and is exposed to the molten metal; and subsequently feeding the cored wire at a second speed for a second duration to take a first measurement of the molten metal.

The present invention relates to a method and a system for determining a temperature value of a molten metal bath. The method according to the invention has been proven to be especially suitable for installations of metallurgical vessels which are constantly moved during the metal making process.

A device for measuring a temperature of a molten metal bath, comprising: an optical cored wire; a tube, wherein the optical cored wire is at least partly arranged in the tube, wherein the tube has an outer diameter in the range of 4 mm to 8 mm, and a wall-thickness in the range of 0.2 mm to 0.5 mm; and a plurality of separating elements comprising more than two separating elements arranged in the tube spaced apart from each other, and forming at least one compartment between two of the more than two separating elements. The invention also relates to a system and method for measuring a temperature of a molten metal bath.

A system for additive manufacturing a component includes an additive manufacturing machine for building a component layer by layer and a first sensor configured to collect a first physical property data for each layer of the component as each layer is formed by the additive manufacturing machine. The system also includes a second sensor configured to collect a second physical property data for each layer of the component as each layer is formed by the additive manufacturing machine. A computing device is operatively connected to the first and second sensors and configured to receive the first physical property data and the second physical property data of the component and configured to compare the first physical property data with the second physical property data to determine a potential failure mode in the component.

One object of the present invention is to improve efficiency at the time of operation of a melting and refining furnace of a cold iron source using an oxygen burner lance, and the present invention provides a melting and refining furnace comprising a through-hole provided through a furnace wall, one or more oxygen burner lances provided in the through-hole: and a thermometer which is configured to measure a temperature in the furnace, the oxygen burner lance has one or more openings communicating with the inside of the furnace, and the thermometer is provided in any one of the openings.

An irradiating device for irradiating a machining field with a machining beam, in particular with a laser beam, for carrying out a welding process, is provided. The irradiating device includes a beam scanner for aligning the machining beam to a machining position in the machining field. The irradiating device has an imaging device for imaging a part-region of the machining field on a pyrometer which has at least two pyrometer segments. The imaging device images thermal radiation which emanates from the machining position in the machining field on a first pyrometer segment, and images thermal radiation which emanates from a position in the machining field being situated ahead of or behind the machining position along an advancing direction of the machining beam in the machining field on at least one second pyrometer segment. A machine tool having such an irradiating device is also provided.