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Chain drives

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Published: 01 December 2003
Fig. 3 Different assemblies used for the determination of coefficients of friction by ASTM D 1894. A, sled; B, plane; C, supporting base; D, gage; E, spring gage; F, constant-speed chain drive; G, constant-speed tensile tester crosshead; H, constant-speed drive rolls; I, nylon monofilament; J More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110262
EISBN: 978-1-62708-247-1
... workflow of Automated Test Pattern Generation (ATPG) scan chain integrity, where external diagnosis tools convert their output into virtual layers in order to link them to the CAD layout for fault isolation. CADNav Applications in FA Laser Voltage Imaging Alongside the rapidly growing trend...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780329
EISBN: 978-1-62708-281-5
... stresses all combine to produce changes in the chemical composition of the material. These changes may take the form of polymer molecular weight reduction due to main-chain cleavage, the formation of cross links, or the formation of oxidized and other functional groups. As the chemical composition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... regulate the ram speed with respect to forming pressure or product temperature. This control feature can offer a considerable advantage in optimizing forming processes. 11.2.1 Drive Systems for Hydraulic Presses The operational characteristics of a hydraulic press are essentially determined...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860007
EISBN: 978-1-62708-338-6
... that used a gear box to determine the winding angle and a chain of a given length to define the length of the part to be wound. Figure 2.2 shows an early Entec vertical winding machine used to build a large rocket motor. To make a change to the winding angle, one had to manually adjust the gearbox each...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860035
EISBN: 978-1-62708-338-6
... that can be employed, a common one being to drive the carriage by means of a chain drive with sprockets at each end of the carriage stroke. The length is then programmed by moving the position of one of the sprockets along the carriage and then lengthening or shortening the chain. The final programming...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370021
EISBN: 978-1-62708-447-5
... motors, and they sometimes use a sprocket and chain in the drive. Steel buckets are produced in varied shapes, depending on the width of the belt, capacity needed, and the bulk density. The buckets are either riveted or bolted to the belt. Bucket elevators haul sand on one side. After delivering...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780146
EISBN: 978-1-62708-281-5
... contain numerous methylene (CH 2 ) groups joined together by covalent (electron-shared) bonds in a continuous chain. Polymers also usually comprise a mixture of molecules of different molecular weights and are said to be polydisperse. In the case of HDPE molecules, molecular weights can range from 14,000...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... coffee cups? The answers to these questions lie in the chemical nature and morphology (structure) of the polymer chains and additions such as fillers, colorants, reinforcing agents, thermal stabilizers, plasticizers, and other modifying agents or additives. The preceding article in this book...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... in engineering polymers. Factors Affecting Fatigue Performance of Polymers Molecular Variables Polymers are sensitive to a number of molecular variables, including molecular weight, molecular weight distribution, crystallinity, chain entanglement density, and cross-linking ( Ref 3 , 5 , 20 , 21...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110634
EISBN: 978-1-62708-247-1
... into serial chains. Scan-based testing is performed by serially shifting input bits into the scan chains, applying a functional clock to capture the response of the combinational logic between the scan chains, and then serially shifting the responses out of the chains. Since the state of the circuits (i.e...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780404
EISBN: 978-1-62708-281-5
... amorphous or partially crystalline, where crystallinity decreases with complexity of the pendant atom groups (steric hindrance), chain branching, as well as with increasing molecular weight. Qualitatively, strength and modulus are increased as crystallinity increases, while ductility is usually reduced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110244
EISBN: 978-1-62708-247-1
... (both spatial and temporal), and user-friendly software environments. This has provided a vehicle for the FA analyst to efficiently and accurately address a wide variety of fail modes across various technology nodes: from a routine 28nm scan chain analysis where an analyst can quickly isolate flip-flops...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320259
EISBN: 978-1-62708-357-7
... the diffusion of C atoms and the transition of Fe atoms require the same level of energy. Thermally Activated Type or Diffusionless Type? Ordinary microstructure change proceeds according to a chain of elementary processes that individual atoms are activated thermally, cut off the bonds to the side...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200007
EISBN: 978-1-62708-354-6
... casting in Figure 2-26 is a one-piece hawse pipe for a cargo ship through which an anchor chain is pulled. Anchors of all types and sizes are produced of steel castings from those in small pleasure boats to those in aircraft carriers. Fig. 2-26 Hawse pipe casting for a cargo ship...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110111
EISBN: 978-1-62708-247-1
... fabricated with dimensions less than 100 nm . These devices are commonly used to sense submicron bits in hard drives, and recent papers have demonstrated magnetoresistive-sensor microscopes with submicron resolution [30 , 31 , 24 , 32] . If such a sensor can be brought within about 1 micron of currents...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730081
EISBN: 978-1-62708-283-9
... that have carbon-carbon backbones. (Pyrolysis is the heating of carbonaceous materials in the absence of oxygen to drive off hydrogen.) Processing consists of several steps: stretching to align molecular chains; then heating to stabilize the orientation, and pyrolize and graphitize. The strengths and moduli...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... lots of minerals as well as liquid composed of long-chain molecules that evolved from organic matter under heat and pressure for millions of years. The molecules are mostly comprised of carbon and hydrogen atoms. The entrained minerals are a product of the geological location of the deposit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... if not included in AEC-Q-standards) throughout the whole supply chain and in the development phase. The output of such discussions should be recorded in written and signed for common understanding and to avoid later disputes. More Detailed Early Life Failure Examples from Practice Following are few...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560165
EISBN: 978-1-62708-291-4
... temperature and then heated at 650 ┬░C. A further complication is that sometimes, and for reasons not yet established, the graphite forms as chains rather than as nodules ( Fig. 7.7b and c ). Graphite in this form has a much more severe effect on mechanical properties than that of nodular graphite...