Abstract:
Procédé de peinture d'une pièce de véhicule automobile, dans lequel la pièce est introduite dans une première zone d'application d'un premier revêtement, puis introduite dans une seconde zone de désolvatation du premier revêtement, caractérisé en ce que l'on réalise les étapes suivantes : • on applique (REV1) un premier revêtement (R) sur au moins une zone de la pièce (P) dans ladite première zone; puis en sortie de la seconde zone et avant tout autre traitement de la pièce • on réalise une mesure (MES1) de l'épaisseur (E) du premier revêtement en au moins une localisation de la zone, au moyen d'une mesure par radiométrie photothermique.
Abstract:
A system and method for estimating a thickness of a deposited material on a surface of production equipment. A first conduit (1) is provided for conveying a first fluid, the first conduit having an inner and an outer surface and disposed at a remote location from the production equipment. A second conduit (7) is disposed adjacent to the first conduit, the second conduit arranged to convey a second fluid to simulate an environment around the production equipment. A measuring device is provided that is arranged to measure a thickness of deposited material on the inner surface of the first conduit, wherein the measured thickness in the first conduit corresponds to an estimated thickness in the production equipment. This allows the thickness of the deposited material in the production equipment to be estimated by simulating the conditions around the production equipment.
Abstract:
The life of a Blast Furnace is determined by the condition of the Hearth. Numerous thermocouples are embedded in the refractory lining and the temperature readings are monitored for sudden temperature increases. These provide warnings about the approach of the hot metal body to the periphery of the Blast Furnace presaging refractory wear leading to failure. Because of the fatal nature of the consequences, the temperature readings have to be interpreted correctly. This invention describes a method whereby the left out refractory lining profile is estimated as well as the thickness of the protective skull. It serves as a guide to continue operation of the furnace, to direct repair work to the critical areas, as well as to suggest replacement of faulty sensors. In the effect, this method serves to increase the working life of Blast Furnaces.
Abstract:
Die Erfindung betrifft ein Verfahren zur Beschichtung einer Oberfläche eines Metallbands (3), mit den folgenden Schritten: Beschichten der Oberfläche eines Metallbands (3) mit einer Nassbeschichtung mittels einer Beschichtungsstation (2), Befördern des Metallbands (3) mittels einer Beförderungsvorrichtung, Erfassung einer mit der Nassbeschichtung beschichteten Oberfläche mittels Anfertigung einer Wärmeabbildung eines Erfassungsbereichs (5), der einen Teil der Oberfläche umfasst. Die Erfindung betrifft weiterhin eine entsprechende Metallbandbeschichtungsvorrichtung (1).
Abstract:
L'invention concerne un procédé de mesure de l'épaisseur (d) d'une couche (2) au moyen d'une source lumineuse (121) irradiant la couche avec un faisceau lumineux (121A) et commandée par un signal de commande (11) sinusoïdal de fréquence de modulation f m de sorte que le faisceau lumineux présente une puissance optique (21) modulée sinusoïdale à cette fréquence de modulation, ledit procédé de mesure consistant à : déterminer, grâce à des moyens de détection (130), un déphasage de calibration (Δ Φ cal ) entre la puissance optique et le signal de commande, chauffer la couche grâce au faisceau lumineux, détecter une composante sinusoïdale (31) d'un flux de chaleur rayonnée (131A) par la couche grâce aux moyens de détection, calculer un déphasage (Δ Φth/ορt ). entre la composante sinusoïdale du flux de chaleur rayonnée et la puissance optique du faisceau lumineux en tenant compte du déphasage de calibration, et déterminer l'épaisseur de ladite couche de matériau en fonction dudit déphasage (Δ Φth/ορt ).
Abstract:
A method of measuring a wall thickness of a pipe can include optically detecting vibration of the pipe, and computing the wall thickness of the pipe, the computing being based at least partially on the optically detected vibration. Another method of measuring a wall thickness of a pipe can include optically detecting temperature of the pipe, and computing the wall thickness of the pipe, the computing being based at least partially on the optically detected temperature. Another method of measuring a wall thickness of a pipe can include optically detecting vibration and temperature of the pipe, and computing the wall thickness of the pipe, the computing being based at least partially on the optically detected vibration and temperature.
Abstract:
A method of determining the thickness of an internal wall in a gas turbine engine component includes the steps of utilizing flash thermography to measure a complete thickness of a component between an outer wall and at least one enlarged cooling channel at a location where an outer cooling channel is positioned between the outer wall and the at least one enlarged cooling channel and where at least one member spans the cooling channel, such that the thickness is through the member which spans the outer cooling channel. An outer thickness of the component is measured from the outer wall to an outer wall of the outer cooling channel. A thickness is determined from an inner wall of the outer cooling channel to the at least one enlarged cooling channel by subtracting the measured outer thickness from the complete thickness, and also subtracting a known thickness of the outer cooling channel.
Abstract:
A method of monitoring the accumulation of matter on an external surface of an aircraft involves applying varying electric fields to the aircraft surface, and a sensor monitor receiving a time-series of measurements of a temperature of the aircraft surface and a phase and a magnitude of a current induced in an electric field sensor unit from the varying electric fields. The electric field sensor unit is mounted proximate the aircraft surface. The time-series of the measurements varies in accordance with the instantaneous accumulation of matter on the aircraft surface. The sensor monitor generates an assessment of the accumulation of matter on the aircraft surface from a correlation of the time-series of the measurements with at least one predetermined matter accumulation profile. Each predetermined matter accumulation profile comprises a corresponding time-series of current phase, current magnitude and temperature measurements.
Abstract:
An apparatus (1) for determining the effective case-hardening or nitriding depth of a steel component comprises a measuring head (2), including a laser source (10) generating a variable frequency radiation for the scanning of pre-determined portions of the component to be measured (20); an infrared detector (16), configured so as to detect infrared radiation generated by the component to be measured; and computing means (17) of spectra of the infrared radiation received; and an evolventimeter (3), connected to the measuring head (2) and including first computing means (26, 40-56) suitable for computing a hardness profile of the component to be measured on the basis of a launch profile and spectra of the infrared radiation received and second computing means (26, 58) suitable for computing the effective case-hardening depth from the hardness profile computed.
Abstract:
This device (10), intended for measuring the thickness of a slag (3) on the surface of a liquid metal (4) contained in an ingot mould (2), comprises: - a wire (13) made of electrically conductive material and capable of being eliminated under the effect of the heat at the temperature of the slag, the wire (13) comprising a free end (14) intended to be dipped into the slag (3), - means for feeding the wire (13), capable of displacing the wire (13) so that its free end (14) dips vertically into the slag (3) according to a predetermined trajectory, - measuring means capable of measuring a distance travelled by the free end (14) of the wire (13) during a time interval between two predetermined events when the latter is displaced under the action of the feeding means, and - means for controlling said feeding means, the control means comprising detection means, capable of detecting contact between the free end (14) and the surface of the liquid metal (4).