公开(公告)号：US20220381761A1

公开(公告)日：2022-12-01

申请号：US17770633

申请日：2020-07-21

Applicant: Wacker Chemie AG

Inventor： Waltraud ASCHL ,  Theresa KAUTNICK ,  Manuel STADLMAYR ,  Peter STEINKRESS

IPC: G01N33/2045 ,  C30B29/06 ,  G01N1/32

Abstract: A method for determining an amount of metallic impurities within silicon. The method includes the steps of (a) providing a rodlike silicon sample and a rodlike seed crystal in a zone melting apparatus, (b) zone melting to form a single silicon crystal having a conical end region with a droplike melt forming at the end of the single silicon crystal in a separation step, (c) cooling of the droplike melt to form a solidified silicon drop, (d) partial or complete dissolution of the silicon drop in an acid, and analyzing the solution obtained in step (d) by a trace analysis technique. Wherein the separation step further includes a remelting step for the silicon sample to reduce its diameter, forming a droplike melting zone, and separation of the seed crystal and the silicon sample by moving the seed crystal and the silicon sample apart from one another.

公开(公告)号：US20220299451A1

公开(公告)日：2022-09-22

申请号：US17638176

申请日：2020-07-16

Applicant: JGC CORPORATION

Inventor： Teruaki SANO ,  Kiminori SHIGETOMI ,  Shigeo OTSUKI ,  Nobutaka TANAKA

IPC: G01N23/04 ,  G01N33/207 ,  G01N23/083 ,  G01N33/2045 ,  G06T7/00

Abstract: In a nondestructive inspection of a defect of a welded portion of a pipe or a pipe member, work efficiency of a radiation transmission test is improved by reducing a burden on a worker, and an inspection accuracy is improved. Imaging data is acquired by transmitting radiation through a welded portion of the pipe to be inspected. Processing of associating determination data indicating a result of determining a defect of the welded portion of the pipe to be inspected based on a distribution of a transmission intensity of the radiation obtained from the imaging data with image data showing the distribution of the transmission intensity of the radiation is performed. As a result, through use of the imaging data, image data and determination data associated with the image data can be obtained, and the burden on the worker can be reduced.

公开(公告)号：US20220258286A1

公开(公告)日：2022-08-18

申请号：US17671743

申请日：2022-02-15

Applicant: Precitec GmbH & Co. KG

Inventor： Alexis Donke ,  Thorsten Lorenz ,  Jonas Nolte ,  Wei Quang Duong ,  Sascha Grau ,  Simon Hähle ,  Rüdiger Moser ,  Stefan Birmanns ,  Jens Reiser

IPC: B23K31/12 ,  B23K26/03 ,  B23K26/0622 ,  B23K26/24 ,  B23K26/323 ,  B23K26/322 ,  G01N25/72 ,  G01N25/18 ,  G01N33/2045 ,  G01N33/207 ,  H01M50/566

Abstract: A method is provided for analyzing a weld seam formed by a laser welding process, said method including thermally exciting the weld seam by radiating at least one laser pulse onto the weld seam, acquiring a decay characteristic of a thermal radiation emitted by the weld seam, and determining whether a welding defect is present based on an evaluation of the acquired decay characteristic. Furthermore, a laser machining system for analyzing a weld seam formed by a laser welding process between at least two workpieces is provided.

公开(公告)号：US20220065718A1

公开(公告)日：2022-03-03

申请号：US17291148

申请日：2019-07-26

Applicant: SINTOKOGIO, LTD.

Inventor： Yuji KOBAYASHI ,  Akinori MATSUI

IPC: G01L1/25 ,  B24C1/10 ,  G01N33/2045

Abstract: A deterioration evaluation method includes a determination step of determining a shot peening condition for imparting a maximum residual stress to an object formed of a metal material; a first shot peening step of performing first shot peening on the object under the shot peening condition; a first measurement step of measuring a first residual stress of the object after the first shot peening step; a second shot peening step of performing second shot peening on the object after the first measurement step under the shot peening condition; a second measurement step of measuring a second residual stress of the object after the second shot peening step; and an evaluation step of evaluating deterioration of the object based on the first residual stress and the second residual stress.

公开(公告)号：US20210356066A1

公开(公告)日：2021-11-18

申请号：US16321226

申请日：2017-07-21

Applicant: Dennis Frederick Viviers

Inventor： Dennis Frederick Viviers

IPC: F16L55/40 ,  G01N27/02 ,  G01N33/2045 ,  G01B11/24 ,  F16L55/32

Abstract: This invention relates to a pipeline-inspecting device. More specifically, the invention relates to a pipeline-inspecting device capable of at least (i) detecting defects in the lining of the pipeline; (ii) visually marking each of the defects in the pipeline; and (iii) recording the location of each of the defects along such pipeline in a single pass. The pipeline-inspecting device includes a primary body (20) being operably movable along a pipeline, fitted with a plurality of primary contacts (40) extending radially from the primary body (20) for operably riding in contact with an internal surface of the pipeline, the contacts (40) being spaced circumferentially relative to one another through 360 degrees about the primary body (20). The device further includes one or more secondary contacts (116) for operably connecting the device to the pipeline and a plurality of marking members (66) associated with each of the respective contacts (40) for visually marking the internal surface of the pipeline in the vicinity of defects detected therein, wherein the defects are operably detected by monitoring an electrical condition change between the primary (40) and secondary contacts (116). In use, and in the event of an electrical condition change arising between one of the primary contacts (40) and the secondary contact (116), the marking member associated with that respective primary contact (40) marks the internal surface of the pipeline in the vicinity of the defect detected by such primary contact (40).

公开(公告)号：US20210181155A1

公开(公告)日：2021-06-17

申请号：US17189958

申请日：2021-03-02

Applicant: NSKENSA CO., LTD.

Inventor： Kunihiko NIIMI

IPC: G01N29/11 ,  G01N29/44 ,  G01N29/24 ,  G01N29/265 ,  G01N33/2045

Abstract: To provide a method for evaluating a corroded part, the method making it possible to specify only a waveform reflected by a corroded part and to evaluate the waveform. When a transmission unit (2) is moved on the surface of a metal pipe (60) and the distance between a corroded part (5) and the transmission unit (2) is changed, only a waveform portion A of ultrasonic waves reflected by the corroded part (5) moves toward the left or right along an X axis, and only the intensity of a noise waveform portion B included in a received wave changes upward or downward along a Y axis, which makes it possible to separate the waveform portion A and the noise waveform portion B of a longitudinal-wave surface wave reflected by the corroded part (5) and evaluate the waveform portion A in detail.

公开(公告)号：US20200340948A1

公开(公告)日：2020-10-29

申请号：US16753919

申请日：2018-09-28

Applicant: Rosen Swiss AG

Inventor： Andrey Danilov ,  Johannes Palmer

IPC: G01N27/83 ,  G01N33/2045

Abstract: Method for determining the geometry of multiple defects in a magnetizable object using a reference data record of the object, comprising determining an initial defect geometry as starting defect geometry, determining a first MFL prediction data record as starting prediction data record on the basis of the starting defect geometry, and iteratively matching the starting defect geometry to the geometry of the real defect(s) by means of the EDP unit and by means of multiple expert routines (11) running in competition and preferably in parallel with one another.

公开(公告)号：US12163970B2

公开(公告)日：2024-12-10

申请号：US17744223

申请日：2022-05-13

Applicant: Raytheon Technologies Corporation

Inventor： Brigid A. Blakeslee ,  Francesca Stramandinoli ,  Amit Surana ,  Mahmoud El Chamie ,  Ozgur Erdinc

IPC: G01N35/00 ,  G01D11/28 ,  G01N21/88 ,  G01N33/2045

Abstract: A method of inspecting a component for anomalous regions includes recording a plurality of sensor readings using one or more sensors, each reading corresponding to a different region of the component; determining an appearance metric for each reading; and determining a nominal appearance metric based on individual values of the appearance metric for a first subset of the readings. The method includes, for a particular sensor reading outside the first subset: determining a difference between the nominal appearance metric and the appearance metric of the particular sensor reading; updating the nominal appearance metric based on the particular sensor reading; and, based on the difference exceeding a threshold: determining that the particular sensor reading is anomalous and corresponds to an anomalous region of the component, and recording additional sensor readings of the anomalous region using one or more sensing parameters that differ from those used to record the anomalous sensor reading.

公开(公告)号：US20240362475A1

公开(公告)日：2024-10-31

申请号：US18308489

申请日：2023-04-27

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： James O. Arukhe ,  Mohammad S. Kadem

IPC: G06N3/08 ,  G01M3/00 ,  G01N33/2045 ,  G01N33/207 ,  G06N3/045

CPC classification number: G06N3/08 ,  G01M3/00 ,  G01N33/2045 ,  G01N33/207 ,  G06N3/045

Abstract: A method to perform a maintenance operation of an equipment structure is discloses. The method includes collecting monitoring data of the equipment structure disposed in a region of interest, processing the monitoring data to generate normalized monitoring data of the equipment structure, training, based on a first historical portion of the normalized monitoring data as training data and using a machine learning algorithm, an artificial neural network (ANN) model, validating, based on a second historical portion of the normalized monitoring data as validation data, the ANN model to generate a validated ANN model, detecting, using a real time portion of the normalized monitoring data as input to the validated ANN model, an anomaly of the equipment structure, and performing, in response to detecting the anomaly, the maintenance operation of the equipment structure.

公开(公告)号：US12061174B1

公开(公告)日：2024-08-13

申请号：US18619168

申请日：2024-03-28

Applicant: Tianjin University

Inventor： Lei Zhao ,  Lianyong Xu ,  Kai Song ,  Yongdian Han

IPC: G01N3/02 ,  G01N33/2045

CPC classification number: G01N3/02 ,  G01N33/2045 ,  G01N2203/0071

Abstract: The disclosure discloses a creep lifetime prediction method for a P92 main steam pipeline welded joint, which includes the following. Based on the minimally invasive sampling technology and the microstructure characterization equipment, the microstructure of the P92 steel welded joint after service is obtained. An area with a most significant degradation of the P92 steel welded joint is determined by performing grading processing on the microstructure of the welded joint. The maximum main stress of the structural component is obtained through the finite element technology and the actual service pressure of the P92 steel welded component. Through the maximum main stress and the microstructure after grading, based on the temperature-related Larson-Miller creep lifetime prediction method, the creep lifetime of the welded joint under the condition is determined.