[PDF] Tube And Pipe High Frequency Weld Temperature Control eBook

Author : HN. Udall
Publisher :
Page : 4 pages
File Size : 34,83 MB
Release : 1985
Category : Control
ISBN :

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A system for closed-loop temperature control of high-frequency welding systems has been sought for over 20 years; however, until recently the available instrumentation for temperature measurement was not capable of operating in the conditions prevailing on a typical tube or pipe mill. The major problems are: 1. A very small available target size. 2. The positional instability of the target due to changes in incoming material dimensions and mill parameters. 3. The presence of large quantities of cooling water in the immediate weld area with attendant smoke and steam. 4. The possibility of an occasional momentary arc occurring in the weld area under certain mill operating conditions. 5. The very small ratio of the heated material to the power available for heating, leading to the possibility of extremely rapid temperature changes. 6. The presence of a small but significant amount of radio frequency (RF) radiation in the immediate vicinity of the weld.

Author : J. C. Richmond
Publisher : ASTM International
Page : 188 pages
File Size : 20,31 MB
Release : 1985
Category : Technology & Engineering
ISBN : 9780803104457

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"Contains papers presented at the Symposium on Applications of Radiation Thermometry, which was held at the National Bureau of Standards, Gaithersburg, Maryland on 8 May 1984" - Foreword.

Author : Sankara Papavinasam
Publisher : Elsevier
Page : 1021 pages
File Size : 29,81 MB
Release : 2013-10-15
Category : Technology & Engineering
ISBN : 0123973066

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The effect of corrosion in the oil industry leads to the failure of parts. This failure results in shutting down the plant to clean the facility. The annual cost of corrosion to the oil and gas industry in the United States alone is estimated at $27 billion (According to NACE International)—leading some to estimate the global annual cost to the oil and gas industry as exceeding $60 billion. In addition, corrosion commonly causes serious environmental problems, such as spills and releases. An essential resource for all those who are involved in the corrosion management of oil and gas infrastructure, Corrosion Control in the Oil and Gas Industry provides engineers and designers with the tools and methods to design and implement comprehensive corrosion-management programs for oil and gas infrastructures. The book addresses all segments of the industry, including production, transmission, storage, refining and distribution. Selects cost-effective methods to control corrosion Quantitatively measures and estimates corrosion rates Treats oil and gas infrastructures as systems in order to avoid the impacts that changes to one segment if a corrosion management program may have on others Provides a gateway to more than 1,000 industry best practices and international standards