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online monitoring

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Image
Published: 01 December 2015
Fig. 49 Montage showing interrelationship between a petrochemical plant process engineer and corrosion/materials specialist using online, real-time corrosion monitoring. Distributed corrosion-monitoring hardware provides a preprocessed data signal at point of monitoring. This, in turn More
Image
Published: 01 December 2015
corrosion probes inserted into the firewall are used to directly monitor boiler tube degradation online and in real-time and to optimize the process for maximum efficiency and tube life. Source: Ref 136 More
Image
Published: 01 December 2015
Fig. 2 Real-time monitoring of chemical injection in a cooling-water system with online corrosion rate and pitting tendencies (localization index). October 10—Chemical treatment program transition: Inhibitor was turned off, acid addition was stopped, blowdown was increased, and dispersant More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500301
EISBN: 978-1-62708-317-1
..., such as tensile test and bulge test. Nondestructive methods, such as eddy current testing, avoid this problem. Furthermore, these methods can be used online without disturbing the production rate as well as make it possible to automatically monitor each and every sheet ( Ref 15.2 , 15.25 ). Theory of Eddy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
..., for instance, have hour meters so that oscillator tube life can be monitored for warranty purposes. The preventive maintenance schedule should list the items to be monitored and the frequency for monitoring. Critical items that require daily monitoring may need their own check sheets. Periodic items...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... are approximately $0.5 billion annually. The potential for corrosion in refineries and petrochemical plants may be inherent to some processes, but costly and damaging equipment losses are not. Much work is being done to adapt process control technologies to integrate corrosion monitoring on an online, real-time...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030349
EISBN: 978-1-62708-282-2
... Abstract This chapter examines methods of internal corrosion prediction for multiphase pipelines and details methodologies to perform internal corrosion direct assessment for natural gas pipelines. Further, real-time monitoring techniques for assessing actual corrosion at critical locations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440243
EISBN: 978-1-62708-262-4
... deterioration with corrective action before out-of-specification parts are produced. Statistical process control techniques can be used to measure furnace performance and address process deterioration in heat treating. By monitoring key process variables and/or key process outputs, preferably in online fashion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
... destructive proof tests, are that a 100% inspection can be performed at manufacture and that monitoring of the structure or component can continue while it is in service. The principal disadvantage of NDE is that the measurements obtained are only indirectly related to the presence and severity of the flaws...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2023
DOI: 10.31399/asm.tb.edfatr.t56090131
EISBN: 978-1-62708-462-8
.... The trained model can successfully recognize failing patterns, having ~ 98% accuracy when tested by 118,595 datasets ( Ref 4 ). AI assisted failure mode identification by clustering and pattern recognition could be extensively implemented in product yield analysis, manufacturing defect monitoring, device...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320323
EISBN: 978-1-62708-332-4
... that the manufacturing process be controlled within established limits. The different stages are: Identifying important process variables Measuring these variables using accurate instrumentation Monitoring the variability of process elements and documenting Controlling the process to prevent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
..., as in offshore oil and gas rigs. Inspection codes and procedures are available, and total design should incorporate these wherever possible. In critical areas, design for online monitoring and inspection will also be important. The human factor in maintenance procedures is often questionable. Adequate training...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780105
EISBN: 978-1-62708-281-5
.... The MI or MFR is only an inverse indication of the “overall” molecular weight and does not indicate anything about the equally important molecular weight distribution. Capillary By varying the orifice used in the extrusion plastometer, different shear rates can be obtained. Dividing the monitored...
Series: ASM Technical Books
Publisher: ASM International
Published: 23 January 2020
DOI: 10.31399/asm.tb.stemsem.t56000020
EISBN: 978-1-62708-292-1
... imaging) would also create a very powerful fabrica- tion and characterization tool. Not only can different masks be fabricated for simple detectors as described in chapter 1, but sample thinning procedures can be optimized by using the STEM detector to monitor electron transparency, and then the sample...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040020
EISBN: 978-1-62708-428-4
... for the plume and/or the substrate. Diagnostic tools are now well accepted in the thermal spray community. Over the last 20 years, they have been quite helpful, especially for spray parameter optimization, booth-to-booth parameter transfer, process troubleshooting, powder lot validation, go no-go monitoring...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... 1%. Both systems are widely and successfully used in the extrusion industry to measure billet temperature, press-exit temperature monitoring and control, and especially for isothermal extrusion. A typical noncontact temperature sensor is shown in Fig. 6 . The noncontact temperature measurements...
Series: ASM Technical Books
Publisher: ASM International
Published: 23 January 2020
DOI: 10.31399/asm.tb.stemsem.9781627082921
EISBN: 978-1-62708-292-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090419
EISBN: 978-1-62708-266-2
..., their undesirable side effects on the overall analysis must be considered. Ultrasonic inspection can be used for online monitoring, provided surface contact is maintained. Unfortunately, this technique is time intensive and requires highly skilled personnel. Therefore, it is often impractical for thoroughly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2023
DOI: 10.31399/asm.tb.edfatr.t56090109
EISBN: 978-1-62708-462-8
... orientations. However, such a solution needs secondary imaging mode for a large field of view imaging for process monitoring. Additional capabilities for viewing and assessing chip layout, metal line (e.g., power voltage lines Vdd/Vss) density and thickness, and fringe cap “imprint” that remains visible...