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foaming

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Published: 01 June 2019
Fig. 6 EDS chemical analysis of the black foam insulation reveals a high level of chlorine. Sample is sputter-coated with gold. More
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Published: 15 May 2022
Fig. 18 Dynamic mechanical properties of a cylindrical urethane foam sample; 6.60 mm (0.26 in.) diameter, 6.28 rad/s frequency More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001528
EISBN: 978-1-62708-219-8
... [approximately 1.5 × 2.4 m (5 × 8 ft)] wrapped lengthwise around the circumference and welded together. The hot water inlet is at the top of each tank and the outlet is at the bottom. The outside of each tank is wrapped with one-inch thick black insulating foam. City water flows through the direct contact...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001508
EISBN: 978-1-62708-236-5
... the intergranular stress corrosion cracks covered in chloride rich corrosion product, were detected. The packaging materials were examined for chlorides. The packaging materials consisted of a polyurethane foam in intimate contact with the part, encompassed by a paper barrier material. The paper barrier...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
... in.) ++ 2.0 0.3 Low to medium Slight Short glass 40 + 4.0 0.6 Slight Long glass 50 −− 7.0 1.0 High Foam injection None … Glass tends to increase stiffness but spoils cell structure, surface, impact – 2.5 0.4 Low to medium Slight Short glass 20 −− 5.0 0.7 High Long...
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Published: 01 June 2019
Fig. 12 Analysis of Coolant 1 by FTIR produced absorption bands indicative of hydrocarbon materials and an anti-foaming additive. More
Image
Published: 01 June 2019
Fig. 1 View of the failed 20,000 liter (5000 gallon) hot water holding tank. The temporary patch repair is visible on the bottom and the black foam insulation is visible on the top half of the tank. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001584
EISBN: 978-1-62708-236-5
..., and stagnant AN was initiated within the neutralizer external to the sparger. A “boiling caldron” developed in the neutralizer around and above the sparger and was driven by energetic decomposition of AN into gaseous products. AN foam formed in the “boiling caldron,” filled the top of the neutralizer...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006927
EISBN: 978-1-62708-395-9
..., but close adherence to the design rules will help to minimize the sink (see Fig. 7 – 9 ). Surfaces opposite ribs and bosses will show some sink marks on most materials. Color choices and the use of surface textures or foaming additives can help to reduce or prevent the appearance of sink marks and preserve...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006939
EISBN: 978-1-62708-395-9
...(a) Compatibilizer(b) Applications/purpose Reference PS/PPE Elastomer such as PB, SBR, or NBR Foam manufacturing 90 Hydroxynaphtoic acid Foam manufacturing 91 PS/PC SAN and styrene-grafted acrylic rubber Improve modulus of mold 92 PS/PE SEBS Improve recyclability in mold 93 LDPE...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
... considerations include copolymerization, blending, plasticization, incorporation of additives, and foaming. Copolymerization Each molecule of a copolymer contains two or more different repeat units. The monomers may be arranged in random, alternating, block, or graft configurations ( Fig. 8 ). In random...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... in Fig. 12 , 13 , 14 , 15 . Coolant 1 was found to contain hydrocarbon materials and a type of anti-foaming additive. The cutting fluid and Coolant 2 was found to contain hydrocarbon-based oils and some additives. The detergent was found to contain a glycol-based surfactant. Analysis of a dried-down...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... previously, the use of dynamic mechanical protocol allows for testing many different geometries, including torsional shear of bars and rods (ASTM D5279-13), dynamic tension of films and fibers (ASTM D5026-15), dynamic compression of foams and elastomers (ASTM D5024-15), and dynamic three-point bending...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006914
EISBN: 978-1-62708-395-9
... Polymeric Materials,” describes a procedure for comparing the relative rate, extent, and time of burning of cellular (foamed) polymeric materials. In this test, a 50 × 150 mm (2 × 6 in.) test specimen is supported horizontally, and dry cotton is placed 175 mm (7 in.) under the test specimen. One end...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006913
EISBN: 978-1-62708-395-9
..., compression moldings, extrusions, injection moldings, transfer moldings, laminates, matched-die moldings, filament windings, foam Phenolics Among the least expensive, most widely used thermoset materials; excellent thermal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060154
EISBN: 978-1-62708-234-1
... polyurethane-foam gasket at the bottom. The pliable gasket conformed to the curved surfaces of the header. The search unit was held in position by a setscrew. Water flowed through the unit by gravity and escaped through a small hole in the Lucite cylinder at a point just above the front surface...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001290
EISBN: 978-1-62708-215-0
... between this plastic panel and the rear wall of the front toilet, had disintegrated, and sharp metal fragments were embedded in the foam of this seat. After examining the wreckage in the field, a large number of metal fragments were recovered from the front toilet and cockpit areas, as well as from...
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
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001697
EISBN: 978-1-62708-219-8
... 0.114 0.010 L 3.81 4.13 0.152 0.011 The insulation used around copper pipes that were in below ground use was a blown on insulation. Specifications, however, designated that below ground insulation was to be comprised of foam glass, with layers of mastic and Fiberglas cloth, wrapped...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
...–0.12 70–100 Silicone … … 260 500 0.22 0.13 80–300 Urethane elastomer … … 90 190 0.07–0.30 0.04–0.178 100–200 Urethane rigid foam … … 160 325 0.06–0.12 0.033–0.067 80 (a) UL, Underwriters Laboratories. (b) Short-term continuous service temperature. (c) Long...