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lead oxide screens

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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006448
EISBN: 978-1-62708-190-0
...: use of lead screens; protection against backscatter and scatter from external objects; and use of masks, diaphragms, collimators, and filtration. The article concludes with a discussion on image conversion media, including recording media, lead screens, lead oxide screens, and fluorescent intensifying...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005909
EISBN: 978-1-62708-167-2
..., pressure, and flow rates of cooling water Ground leakage current Power/voltage/current Melting temperature (periodically) Monitoring of Refractory Lining The biggest risk of danger exists when molten metal and water come together. Basically, there are two situations that lead to that risk...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
... where oil, grease, and plastic coatings burn off. Volatile metals such as lead or zinc also vaporize and can be collected as baghouse dust. Refractory metals such as chromium or tungsten are oxidized and collected in the slag. The final product is nickel (or nickel alloy) pig or shot that is uniform...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001346
EISBN: 978-1-62708-173-3
... of devices and leads, necessitated a method to precisely place controlled amounts of solder on a substrate, either for lead attachment or for bonding of the device to attain more-effective heat transfer. Solder pastes that are applied by screening or printing through a mask or by application through a fine...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001460
EISBN: 978-1-62708-173-3
..., slump, and viscosity of the paste. For example, smaller solder particles pass more easily through stencil or screen openings. However, the higher oxide content of the smaller particles (larger surface-to-volume ratio) creates a greater number of post-assembly solder balls, which are small spheres...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
... and the rare earths) lead to oxides of these elements as well as intermetallic compound precipitates. If the fluxing process is used to clean magnesium, fluxing salt inclusions may also be present. Inclusions in Copper Alloys In addition to the usual inclusions arising from oxides, fluxing salts...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001118
EISBN: 978-1-62708-162-7
..., which leads to increased metal losses upon melting. A temperature that is too high or exposure times at proper temperatures that are too long will cause considerable oxidation of the scrap, also resulting in increased melt losses. In the pan delacquering system, large bed depths may result...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006139
EISBN: 978-1-62708-175-7
... uniform lead dispersion in lead-bearing alloys. Where induction heating is not used, temperature, time, and physical agitation can be used to aid homogeneity. Air-cooled, atomized powder is collected and passed over a primary control screen (sieve) to remove oversized particles. Usually...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006455
EISBN: 978-1-62708-190-0
... of plates, cylinders, and flanges. The article discusses various control methods, including the use of lead screens; protection against backscatter and scatter from external objects; and the use of masks, diaphragms, collimators, and filtration. The radiographic appearance of specific types of flaws is also...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003169
EISBN: 978-1-62708-199-3
... is more stable. In certain cases, reduction of metal from metal compounds can be achieved. For example, lead can be produced by reacting lead oxide and lead sulfide at a temperature where sulfur dioxide is more stable than the metal compounds combined. Using the Ellingham-Richardson or any other...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006052
EISBN: 978-1-62708-175-7
... common method involves converting minerals and tungsten-containing materials to ammonium paratungstate (APT), which, in turn, is converted to tungsten oxides and then to tungsten metal. Tungsten powder is then carburized to tungsten carbide in the presence of hydrogen. These processes and those...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... materials lower the expansion, decrease viscosity, and shorten the working range, allowing increased fabrication speeds. A number of sources of boric oxide are used. Lead Oxides and Silicates Lead oxides and silicates are used in the production of specialty glass for optical glass, electrical glass...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006068
EISBN: 978-1-62708-175-7
.... The process details include raw materials, melting method, and control of physical and chemical powder characteristics. The article describes the gas atomization of stainless steel powders and processes that are done after water atomization: drying, screening, annealing, and lubricating. It also discusses...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005706
EISBN: 978-1-62708-171-9
... be beneficial in some thermal barrier applications and in some tribological applications through retention of lubricating oil films. Porosity also may be beneficial in some coatings on biomedical implants to allow the ingrowth of tissue and consequent bonding. Lamellar oxide layers also can lead to lower wear...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003050
EISBN: 978-1-62708-200-6
..., the pelletized dust (which contains lead oxide) has completely replaced the original source of this component, litharge. Pelletized filter dust consisting of CaSO 4 , CaCO 3 , CaF 2 , and NaCl, taken from container glass tanks that produce white flint, has also been recycled into the batch material without...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005986
EISBN: 978-1-62708-168-9
... of 250 to 300 V is applied only to the screen ( Fig. 11 ). Fig. 11 Schematic presentation of the active-screen plasma nitriding equipment Nitriding is often combined with subsequent oxidizing in order to obtain a black surface finish. The oxidizing step is usually performed in the plasma...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006081
EISBN: 978-1-62708-175-7
...) fabricating. Unalloyed iron and steel powders lead in commercial PM applications for the following reasons: They are inexpensive to produce compared with nonferrous metals. They possess superior properties, particularly strength, compared with other metals and nonmetals. They have a favorable...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001316
EISBN: 978-1-62708-170-2
... Abstract This article focuses on the ceramic coatings for ceramic and glass substrates. It describes the role of oxides in glazes and discusses the optical and appearance properties of various types of glazes, such as leadless glazes, lead-containing glazes, opaque glazes, and satin and matte...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006635
EISBN: 978-1-62708-213-6
..., OCl – 1. Dilute hydrochloric acid Yellow coloration, followed by chlorine gas evolution 2. Lead(II) acetate or nitrate Brown lead(IV) oxide forms upon heating 3. Cobalt nitrate Black precipitate of cobalt(II) hydroxide 4. Mercury On shaking slightly acidified solution...