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reaction injection molding

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
...Abstract Abstract Cracking occurred within the plastic jacket (injection molded from an impact-modified, 15% glass-fiber-reinforced PET resin.) of several assemblies used in a transportation application during an engineering testing regimen which involved cyclic thermal shock (exposing...
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
... are prone to environmental stress cracking. Molded-in stresses are commonly imparted through the forming process, especially injection molding and thermoforming. Molded-in stress is observed in amorphous resins as a marked expansion in the sample dimension at temperatures approaching the T g...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... are: Exceeding the solubility necessary to keep the gas in solution Reaction-type pinhole formed by segregation during solidification Reaction product between the metal and mold material Gas solubility limits and gas porosity are some of the most serious problems in the casting of cast iron, aluminum...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... effect. However, at conditions of either low (>4) or high (<10) pH, the rate of hydrolysis may become perceptible and result in molecular weight reduction and mechanical property diminution. These polymer types can also degrade during processing (i.e., extrusion or injection molding...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... entirely pitted or pock-marked Orange peel, metal mold reaction, alligator skin D 135 Grooves and roughness in the vicinity of re-entrant angles on die castings Soldering, die erosion D 140 Depressions in the casting surface D 141 Casting surface depressions in the vicinity of a hot...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... nozzles Casting alloys Coal gasification Co-29Cr-19Fe High-temperature corrosion and oxidation In some coal gasification processes [ 1 ], the reactor burner nozzle is a crucial component. Through it coal slurry and oxygen are injected into the reaction chamber where they react exothermically...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... of the random nature of most polymerization reactions. Thus, polymers are generally characterized by a molecular-weight distribution and the associated averages. This is discussed in more detail in the article “Characterization of Plastics in Failure Analysis” in this Volume. Deformation and Fracture...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... dealuminification denickelification desiliconification dezincification galvanic corrosion graphitic corrosion intergranular corrosion pitting corrosion selective leaching uniform corrosion velocity-affected corrosion CORROSION is the electrochemical reaction of a material and its environment...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
...Abstract Abstract Corrosion is the electrochemical reaction of a material and its environment. This article addresses those forms of corrosion that contribute directly to the failure of metal parts or that render them susceptible to failure by some other mechanism. Various forms of corrosion...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... powder parts are typically infiltrated with either a metal or polymer for mechanical integrity, but modern techniques are focusing on densifying the bound powder parts completely to form fully dense, single-alloy (metal) artifacts very similar to the technique used in metal injection molding...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... to wrought Monel pipe. Metallographic examination disclosed many small microfissures in the weld metal, but no microfissures were found in the HAZs of the wrought Monel. This section of line contained high thermal stresses that resulted from injection of steam a short distance upstream from the coupling...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006812
EISBN: 978-1-62708-329-4
.... Metallographic examination disclosed many small microfissures in the weld metal, but no microfissures were found in the HAZs of the wrought alloy 400 side of the weld. This section of line contained high thermal stresses that resulted from injection of steam a short distance upstream from the coupling. Chemical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1