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static seals

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Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003848
EISBN: 978-1-62708-183-2
... significantly reduce the mechanical properties of elastomer seals before any degradation occurs. High temperatures also cause degradation of elastomer architecture and cross links. Dynamic stresses narrow the performance range compared to static conditions because most elastomers are not robust against...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003056
EISBN: 978-1-62708-200-6
... slow crack growth, sometimes called “static fatigue” ( Ref 7 ). When the crack length reaches the critical length after some time, a catastrophic fracture will occur without warning. To minimize residual stresses, the materials selected as the ceramic and metal members should have CTE values that are...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001273
EISBN: 978-1-62708-170-2
... to casting, the workpiece must be scrupulously prepared by various cleaning, fluxing, and tinning steps. Babbitting of bearing shells can be accomplished by three methods, namely, static babbitting, centrifugal casting, and metal spray babbitting. babbitting bearing shells bond quality...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006663
EISBN: 978-1-62708-213-6
... and use a controlled V for the gas that enters the ionization region. Static gas measurements are typically used in situations where the sample gas volume is small (microliters to liter), or where pressure is low (few torr or lower), and where gas is emitted from a fixed size material (mineral, sealed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003020
EISBN: 978-1-62708-200-6
... in a mold; and the mold is closed. A two-component resin system is then mixed in a static mixer and metered into the mold through a runner system. The air inside the closed mold cavity is displaced by the advancing resin front and escapes through vents located at the high points or last areas of the...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001249
EISBN: 978-1-62708-170-2
... explored for use in the surface mount technology of the electronics industry. Indium is electropositive to iron and steel and electronegative to tin. In an aqueous 3% sodium chloride solution of pH 6.7 to 7.2, indium has a half-cell static potential of −0.56 V referenced to that of a silver electrode given...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003030
EISBN: 978-1-62708-200-6
... information about wear rate and static and kinetic coefficients of friction. Reference 36 describes wear and friction testing of various composites at several temperatures. Selected data from this reference are shown in Table 4 . In this case, wear data are presented in the form of a wear factor K , which...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005259
EISBN: 978-1-62708-187-0
...). A typical static casting has a head less than 0.3 m (1 ft) high. The centrifugal force acting on the molten metal will provide better feeding action than a static cast head; therefore, it is possible to feed molten metal into and through lighter and thinner mold sections into heavier mold sections...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006050
EISBN: 978-1-62708-172-6
... Static Air Pressure Difference”). While not complying with an ASTM International standard, a simple and quick evaluation of the coating is to spray water on the exterior surface for 30 to 60 min. This can be accomplished by using lawn sprinklers attached to ladders, homemade spray racks ( Fig. 22 ), or...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005228
EISBN: 978-1-62708-187-0
... for times extending to 10 to 16 days. Shuttle-based platforms provided quasi-static (steady) gravity levels as low as 10 −6 g , which constitutes true microgravity. Experimental payloads having small up-mass, operating on self-contained battery power, and needing minimal telemetry for command and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... that make use of wear resistance include dies for hot extrusion of metal rods and tubes, inserts for tablesetting, and paper lapping dies, seals, and bearings. The information in this article is largely taken from the following articles in Ceramics and Glasses, Volume 4, Engineered Materials...
Book Chapter

By Rebecca Tuszynski
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003011
EISBN: 978-1-62708-200-6
.... A rubber can be viewed as a thermodynamic “system.” In a static sense, it is an engineering material that has a broad response to external influences such as temperature and pressure. (Of course, there is no such condition as a static application of rubber.) The two basic mechanical properties of...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006648
EISBN: 978-1-62708-213-6
... in.) of diameter. Smaller or wider samples, as well as curved surfaces, also may be analyzed by using special sources or adaptors. In the static source, the argon flow rate is approximately 1 mL/min, employing argon of very high purity (e.g., 99.9999%). In this case, the GD cell is a sealed unit...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... adhesive. These limitations include certain types and magnitudes of stresses; whether the stresses are static or dynamic; and environmental factors such as temperature, humidity, and exposure to other vapors or liquids. Probably all joints made with organic adhesives are adversely affected by the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
... low-expansion metals. The design of ceramic static components requires a different approach. In contrast to rotor-shaft attachments, which are single-point attachments where no relative ceramic-to-metal movement is experienced, attachments of ceramic static structure components to metal engine...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
... a mold wall to form the desired shape. Therefore, a centrifugal casting machine must be able to spin a mold, receive molten metal, and let the metal solidify and cool in the mold in a carefully controlled manner. All metals that can be cast by static casting can be cast by the centrifugal casting...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003067
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
... structural components without compromising mechanical performance. The coating architectures developed have been dependent on the application lifetime as well as on dynamic or static structural requirements. The CVD coatings are normally applied in multiple cycles to ensure even deposition rates over curved...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... gathering systems. Fig. 9 Offshore petroleum production applications for centrifugally cast parts. (a) Jackup leg. (b) Risers. (c) Buckle-crack arrestor Any material that can be statically cast can also be centrifugally cast. Materials that are currently being processed by horizontal centrifugal...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... different heat treatments that may be used individually or combined: homogenization, annealing, static recrystallization, precipitation, solutioning, and soaking. Initial reheats are often referred to as homogenization reheats, while later reheats are frequently referred to as recrystallization reheats. The...