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Excessive internal pressure

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040101
EISBN: 978-1-62708-428-4
... in the preheated oven. Keep the samples under pressure in heated oven until the glue cures, cool samples, and release the pressure. Carefully remove excess glue from each assembly with grinding. Recommended grinding parameters: Abrasive size for grinding paper or wheel: not coarser than 120 mesh...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270084
EISBN: 978-1-62708-301-0
.... The hub of the wheel had sheared off. Parallel to the fracture surface, there was circumferential cracking near the fillet of the flange. The crack had proceeded from the outer surface at the fillet to the inner. Fractography revealed cleavage mode. The rim had failed due to excessive pressure of air...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270110
EISBN: 978-1-62708-301-0
... cracked below the lug by fatigue due to excessive exural load. The crack initiated on the inner surface of the tube below the lug and propagated through the tube thickness, causing leakage of gas and pressure drop. Recommendation 20 m It is necessary to redistribute the loads on the tube to avoid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... is not dimensionally correct, it will not be possible to obtain quality parts. Mismatches and incorrect dimensions will result in high- and low-pressure areas during cure, resulting in excessive thin-out, voids, and porosity. While convective heat transfer is certainly important, heat transfer is usually modeled...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... Abstract This chapter examines boiler tube failures attributed to operation-related causes. It discusses failures due to rapid start-ups, excessive load swing, excessive heat inputs, poor water chemistry control, and water-treatment methods. boiler tubes operation-related failures water...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500157
EISBN: 978-1-62708-317-1
... of the incoming sheet Die-workpiece interface issues (friction and lubrication) Tool material and geometry Relationship between the internal fluid pressure (or pot pressure) and the blank holder force (BHF) Press design and characteristics, including pressure and load capacity and ram speed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... tubes run over several kilometers of distance and are an important component of the entire system. These tubes are exposed to highly adverse conditions, including high skin temperatures, exposure to flame, corrosive and erosive conditions on their outer surface, and high-pressure, high-temperature water...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900185
EISBN: 978-1-62708-350-8
... such as vacuum pressure, gas mix, and power input remain the same. By using pulsed dc with a repetition frequency of about 10 kHz, the formation of micro-arcs is suppressed. Courtesy of Plateg GmbH Abstract This chapters reviews the various process, material, and post-treatment problems that can occur...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
..., the forging can fracture. Fig. 16.13 Upsetting Closed-die forging shapes the part between two die halves; thus, productivity is increased, albeit at the expense of higher die costs. Excess metal is allowed to escape in the flash; therefore, pressure is kept within safe limits, while die filling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860065
EISBN: 978-1-62708-338-6
... on an angle. This motion places the fibers on a path that is called polar and is not the shortest distance from end to end on the cylindrical surface. Fibers are not liable to directly assume maximum internal pressure loads. Fibers are not in a helical path that is required for the shortest and nonslipping...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780193
EISBN: 978-1-62708-268-6
... Visual examination, x-ray or n-ray (if device cannot be disassembled and depending on materials) Internal component presence and fit Visual examination, x-ray or n-ray (if device cannot be disassembled and depending on materials) Contamination Visual examination, magnification, optical microscopy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780147
EISBN: 978-1-62708-268-6
... the system is supposed to do. Engineers may not recognize the environmental extremes (both external and internal) that the system will experience. Performance, reliability, transportation, and other requirements may not be fully understood or taken into account during the design. Worst-case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
... time under pressure. The velocity of the slide under pressure, V p , determines mainly the contact time under pressure, t p , and the deformation rate, ε ¯ ˙ . The number of strokes per minute under no-load conditions, n o , the machine energy, E M , and the deformation energy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
... SOLID-STATE WELDING processes are those that produce coalescence of the faying surfaces at temperatures below the melting point of the base metals being joined without the addition of brazing or solder filler metal. While no pressure may be appropriate in some instances, high pressures are normally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
..., the dies are closed, and the axial cylinders push the punches toward the tube end and seal the tube. Forming starts at stage B. Axial feed and increase in internal pressure are controlled simultaneously to improve the material-shaping capabilities. After the tube is completely formed (stage C), the punches...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... and resolution. A 5 or 10 MHz dual element transducer is normally used in this application. If the weld cannot be machined, near surface sensitivity will be low because the initial pulse is excessively broadened by the rough, as-welded surface. Unmachined welds can be readily inspected by direct beam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... consistent glass contents: Vacuum Bag : A flexible film (e.g., nylon) is placed over the completed lay-up or spray-up, its joints are sealed, and a vacuum is drawn. Bleeders and breathers can be used to remove excess resin and promote the evacuation of air. The vacuum bag pressure helps minimize voids...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140047
EISBN: 978-1-62708-335-5
... or physical characteristic, the intentional addition of hydrogen is unacceptable. The precipitation of hydrogen during solidification offsets the negative relative pressures that develop when shrinkage voids form. The equalization of internal and external pressures brought about by hydrogen precipitation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860081
EISBN: 978-1-62708-338-6
... pressure bottle. Note that this can be a very messy procedure. First, the resin content of the structure is governed by and is very reproducible through control of resin viscosity and the tension on the fiber band. Very low, actually zero, void content is achieved by winding with excess resin...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
... the escape of lubricating fluids, which can result in overheating, friction-induced damage to mating parts, lockup of moving parts, and damage resulting from the escaping lubricant. Leaks can allow hazardous liquids or gases to escape. Leaks can result in loss of pressure or creation of excess pressure...