Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Practice for Electromagnetic (Eddy-Current) Examination of Type F-Continuously Welded (CW) Ferromagnetic Pipe and Tubing Above the Curie Temperature (Includes all amendments And changes 12/31/2010).
Automaticky preložený názov:
Štandardná prax pre elektromagnetické ( Eddy - prúd ) Vyšetrenie typu F - Priebežne zvárané ( CW ) Feromagnetické potrubia a rúrky Nad Curie teplota
NORMA vydaná dňa 1.1.2004
Označenie normy: ASTM E1033-98(2004)e1
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2004
Kód tovaru: NS-40201
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
curie temperature, eddy-current, electromagnetic, NDT, nondestructive testing
Significance and Use | ||||||||||||
The purpose of this practice is to outline a procedure for the in-line eddy-current examination of hot CW pipe for the detection of major imperfections and repetitive discontinuities. A major advantage of in-line eddy-current examination of ferromagnetic CW pipe above the Curie temperature lies in the enhanced signal-to-noise ratio and depth of penetration obtained without the use of magnetic saturation. The eddy-current method is capable of detecting and locating weld imperfections commonly referred to as open welds, cave welds, black spots (weld inclusions), and partial welds (incomplete penetration). In addition, it will detect pipe-wall imperfections such as slivers, laps, and ring welds (end welds). The relative severity of the imperfections may be indicated by eddy-current signal amplitude or phase, or both. An alarm level may be selected that utilizes signal amplitude or phase, or both, for automatic recording or marking, or both. Because the responses from natural discontinuities may vary significantly from those from artificial discontinuities, care must be exercised in establishing test sensitivity and acceptance criteria. |
||||||||||||
1. Scope | ||||||||||||
1.1 This practice covers a procedure for in-line, eddy-current examination of continuously welded (CW) ferromagnetic pipe and tubing at temperatures above the Curie temperature (approximately 1400F [760C], where the pipe is substantially nonmagnetic or austenitic. 1.2 This practice is intended for use on tubular products having nominal diameters of 1/2in. [12.7 mm] to 4 in. [101.6 mm]. These techniques may be used for larger- or smaller-diameter pipe and tubing as specified by the using parties. 1.3 This practice is specifically applicable to eddy-current examination using encircling coils, or probe coils. 1.4 This practice does not establish acceptance criteria. They must be established by the using parties. 1.5 The values stated in inch-pound units are to be regarded as standard. The SI units in brackets may be approximate. This standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
||||||||||||
2. Referenced Documents | ||||||||||||
|
Chcete mať istotu, že používate len platné technické normy?
Ponúkame Vám riešenie, ktoré Vám zaistí mesačný prehľad o aktuálnosti noriem, ktoré používate.
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-09-09 (Počet položiek: 2 346 212)
© Copyright 2024 NORMSERVIS s.r.o.