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polyoxymethylene

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... the wear failure of an antifriction bearing, a nylon driving gear, and a polyoxymethylene gear wheel. antifriction bearing cohesive wear elastomers glassy thermoplastics interfacial wear lubricant mechanical properties nylon nylon driving gear plastics polyoxymethylene gear wheel...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005687
EISBN: 978-1-62708-198-6
..., HXLPE, HXLP, PEX, XPE Hips; shoulder Polymethylpentene PMP Catheters—accessories Poly(oxymethylene) Poly(oxymethylene), homopolymer ASTM F1855 Acetal resin, paraformaldehyde, polyacetal, polyformaldehyde, polyoxymethylene POM, POM-H Fixation devices Catheters—accessories; heart...
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
... induced in a polyoxymethylene specimen exposed to ultraviolet (UV) light in the laboratory for 1000 h. It should be noted, however, that some polymers are intrinsically more resistant to degradation than others. The following common polymers are ranked with respect to their relative resistance...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006373
EISBN: 978-1-62708-192-4
... resistance. Thermosetting polymers are used at high temperature as matrices for polymer composites. Polymer gears, bushings, and sliding bearings are made of polyformaldehyde, polyoxymethylene, polycarbonate, and polyacrylate. Among thermosetting polymers used for antifriction applications are polyimides...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
... relation using the principles of dimensional analysis. Using data obtained for polyoxymethylene (POM) and PTFE-filled POM, Kar and Bahadur obtained a relation given as: (Eq 4) V = 1.5 K   ( γ 1.775 / E 3.225 ) P 1.47   L 1.25 where V is the volume loss, K...
Book Chapter

By Koji Kato
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006394
EISBN: 978-1-62708-192-4
... wear modes cutting plastic flow plowing polishing wear polyethylene polyoxymethylene superlow friction superlubricity surface smoothing wear control wedge forming THE TERM POLISHING WEAR is used to describe the type of wear that produces a mirrorlike, smooth finish on at least one...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006410
EISBN: 978-1-62708-192-4
... ). Polyoxymethylene (POM), aka Polyacetal POM exhibits a low friction coefficient; low wear rate; and a unique balance of mechanical, thermal, chemical, and electrical properties. Depending on the chain structure, both homopolymer (POM-H) and copolymer (POM-C) grades are available to meet different requirements...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
... composed of several organic components to ensure meeting process requirements. Various organic substances, such as waxes (e.g., paraffin wax), and thermoplastic materials such as polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), and polyethylene glycol (PEG), as well as various additives...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... flow or deformation of the material without material loss. A second mode appears as the wear rate increases, and this is associated with material loss. In the material-loss mode, cracks appear in the surface. For synthetic fluorine-containing resin and polyoxymethylene tested against 17-4 PH...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002464
EISBN: 978-1-62708-194-8
... (PTFE) 17–21 126 327 Polyvinyl acetate (PVAC) Soft 29 … Polyvinyl alcohol (PVOH) 83–152 85 T d < T m Polyacrylonitrile (PAN) … 104 T d < T m Polyoxymethylene (POM or polyacetal) 70 −50 175 Polyethylene oxide (PEO) 13–22 −55 66...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003007
EISBN: 978-1-62708-200-6
..., 10 −5 /K °C °F °C °F W/m · K Btu · in./h · ft 2 · °F Acrylonitrile-butadiene-styrene (ABS) 99 210 60 140 0.27 1.9 5.3 ABS-polycarbonate (ABS-PC) alloy 115 240 60 140 0.25 1.7 3.5 Diallyl phthalate (DAP) 285 545 130 265 0.36 2.5 2.7 Polyoxymethylene (POM...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001469
EISBN: 978-1-62708-173-3
..., polyoxymethylene. Source: Ref 34 Key Joining Parameters The key joining parameters of ultrasonic welding are the: Amplitude of vibration during joining Pressure applied during the welding operation Joint geometry when welding amorphous and semicrystalline polymers Welding time and energy...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005676
EISBN: 978-1-62708-198-6
... Clariant High stiffness, strength, and toughness 50 120 260 500 Polyethylene terephthalate PET Eastar Selar Barrier properties, excellent clarity, hard, strong, and extremely tough 70 160 265 510 Dacron Polyoxymethylene or polyacetal copolymers POM or acetal copolymers Celcon, Delrin...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003028
EISBN: 978-1-62708-200-6
... methacrylate. Polyoxymethylene (POM) also may be thermally depolymerized to produce formaldehyde, but this degradation is prevented in commercial polymers by capping the terminal hydroxyl groups or by producing a more stable copolymer of formaldehyde and ethylene oxide. Hydrogen chloride is evolved when...
Book Chapter

By Matthew Donachie
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003168
EISBN: 978-1-62708-199-3
... of magnesium, the strength of cobalt-chromium alloys, the corrosion resistance and biocompatibility of titanium, and the fabricability of stainless steel. Alloys used in articulating prosthesis applications are often used in conjunction with other biomaterials such as UHMWPE, polyoxymethylene (Delrin-150...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003256
EISBN: 978-1-62708-176-4
... of selected structural thermoplastics Table 2 Transition and continuous-use temperatures of selected structural thermoplastics Plastic Glass transition temperature ( T g ) Melting temperature ( T m ) Continuous use temperature °C °F °C °F °C °F Acetals (polyoxymethylene, POM...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003006
EISBN: 978-1-62708-200-6
... Polyoxymethylene −85 −120 175 345 Polyamide  Nylon 6 50 120 215 420  Nylon 6/10 40 105 227 440 Polyethylene terephthalate 69 155 265 510 Polycarbonate 150 300 265 510 Polydimethyl siloxane (silicone rubber) −123 −190 −54 −65 Source: Ref 1 , 2...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006380
EISBN: 978-1-62708-192-4
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... ab value) −1 2 PES and PMMA … … K Ic 28 PEI GF/16, 20, and 25PTFE/15Graphite and MoS 2 /15 Increased ( Se ) −1 8 PI Graphite/15 and 40PTFE/15MoS 2 /15 Increased ( Se ) −1 8 PP, polypropylene; POM, polyoxymethylene; PC, polycarbonate; PTFCE...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6