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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090463
EISBN: 978-1-62708-234-1
... Abstract A housing used in conjunction with an electrical switch failed shortly after being placed into service. A relatively high failure rate had been encountered, corresponding to a recent production lot of the housings, and the failed part was representative of the problem. The housing had...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048139
EISBN: 978-1-62708-225-9
... Abstract The conical helical spring sealed, within each switch enclosure, fractured to lead to the failure of several electrical toggle switches. The spring was fabricated from 0.43 mm diam AISI type 302 stainless steel wires. Appreciable amount of scale was observed on the fracture surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001521
EISBN: 978-1-62708-229-7
... Abstract Admiralty brass (Alloy C44300) cooling tubes which were part of a heat exchanger in a turbogenerator that provided electricity to a manufacturing plant failed. A mixture of non-recirculating city and “spring pit” water flowed through bundles of tubes to cool the oil in which...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0065826
EISBN: 978-1-62708-233-4
... the fractured wire face inside the ferrule Seven days after the more expensive type 304 wires were installed, the first failed. Thus, switching from inexpensive 1008 carbon steel wire to a much more expensive type 304 austenitic stainless steel wire changed the time to first failure from one year to one...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001721
EISBN: 978-1-62708-225-9
... cracking (SCC) incurred extensive technological importance in the last half of the 19 th century with the use of cold drawn brass cartridge cases in ammunition, and the use of brass condenser tubes in the growing electric power industry. It was during this time that the term “season cracking” was used...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
..., abrasives, coatings, varnishes, and laminates. Filled and reinforced resole and novolac resins are used as engineering plastics in electrical (wiring devices, heavy electrical switch gear, circuit breakers, connectors), appliance (knobs, handles, toasters, steam irons), and automotive (brake system...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
...: Fatigue Fractures of Toggle-Switch Springs That Originated at Tool Marks Several electrical toggle switches failed by fracture of the conical helical spring sealed within each switch enclosure. The springs were fabricated from 0.43-mm (0.017-in.) diam AISI type 302 stainless steel wire...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001485
EISBN: 978-1-62708-225-9
.... The rotation of the balls or rollers within the cage may be effectively prevented and, in some instances, the bearing can lock to such an extent, for example, that it will prevent rotation of an electric motor when it is switched on. Skidding of the rollers, leading to smearing, may also occur in a bearing...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... and Applications to Stabilization and Stability Testing of Materials , Durability 2000: Accelerated and Outdoor Weathering Testing , Ketola W. , Evans J. , Eds., ASTM International , 2000 , p 41 – 58 10.1520/STP12473S • Weathering Testing Guidebook , Atlas Electric Devices Co. , 2001 , Pub...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... of nitrogen, air, or a consecutive switch program. The composition of the purge gas can have a significant effect on the TGA results and, as such, must be properly controlled. The size of the sample evaluated usually ranges between 5 and 100 mg, with samples as large as 1000 mg possible. Minimal sample...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... and secured into a specially designed grip assembly. When air pressure in the cylinder is released, the tool is pivoted upward in the grip assembly until an electrical trigger switch is engaged. Air pressure then is put into the cylinder as the driving force for the test, and the striking tool is pivoted...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... the compression ratio of the screw Increase the length of the compression section Use screw cooling Use a barrier screw Barrel or die temperature variations Malfunctioning controller Proportional control is not working correctly: ○ Retune controller If using on-off control, switch...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... for the investigation. Types of Accident Reconstruction The following are some of the more common types of accident reconstruction: Motor vehicle Aircraft Structural Electrical Industrial Mechanical Construction Fire investigations Numerous references are available to aid...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
... types of accident reconstructions include: Motor vehicle Aircraft Rail Boating Structural Electrical Industrial Mechanical Construction Fire investigations Numerous references are available to aid the personnel responsible for the reconstruction. The Traffic...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... frequently, such as one operating in an electrical utility providing power in peak demand periods, may have turbine components that are life limited by thermal-mechanical fatigue. Those same components operating in a base load application, such as a pipeline compressor station, may have different life...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... comparison with reference sample. Part edges complicate results, and a skilled operator is required. No fluid coupling required. Can adapt to high-speed production lines Metals only Potential drop Measures electrical resistance between/among probes contacting material surface Online monitoring...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... of their reciprocating natural gas compressors. The site operator thought there was a vibration problem on the suction bottle of the compressor. Reciprocating compressors have suction and discharge bottles to absorb the pressure pulsations from the pistons. This is similar to adding a capacitor to an electrical circuit...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... intergranular pitting of 304L stainless steel condenser tubes in a geothermal electrical power plant operating at >100 °C (> 210 °F) has been reported ( Ref 16 ). In another example, microbiological activity and chloride concentrated under scale deposits were blamed for the wormhole pitting of carbon...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003527
EISBN: 978-1-62708-180-1
... can also be used to adjust the focal length and provide an increase in magnification. The higher focal lengths have the disadvantage of reduction of depth of field. Either type of macrolens may use manual or automatic focus. In many conditions, the automatic lens is switched to the manual mode...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
... control multiple elements. This practice is called multiplexing. Multiplexing is used to simulate the capability of a system with more channels at a reduced hardware cost. The trade-off is a reduction in scan speeds, since each channel needs to switch between multiple elements. Multiplexing two or four...