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lead plating

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Published: 01 November 2019
Figure 15 Image of 208 PQFP mounted to test plate. At least one of the leads needs to be in contact with the mounting plate to the die. Note: the water stays in the cavity due to surface tension, defining the upper plate of the capacitor. More
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Published: 01 November 2019
Figure 4 The AES analysis of plated lead surface is shown at top, while the AES depth profiling of the plated lead is shown at bottom. More
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Published: 01 November 2007
Fig. 10.5 Impingement of martensite plates leading to quench cracks (QC) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110144
EISBN: 978-1-62708-247-1
... packages. The part is encapsulated in a potting epoxy and the top surface etched on a hot plate with red fuming nitric to expose the die. The potting epoxy etches more slowly than the package providing protection for the leads. The 4 connections can be probed or wires soldered to continue the analysis per...
Image
Published: 01 November 2019
Figure 18 Water used to establish the upper capacitor plate for endpoint detection over the lead dress. The process is set for automatic stop when the endpoint signal exceeds the set threshold. More
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Published: 01 July 2000
Fig. 7.101 Through-thickness plastic zone in a plate of intermediate thickness. Larger plane stress volume starting at the surface tapers into the smaller plane strain volume with distance into the material parallel to the leading edge of the notch. Source: Ref 164 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850538
EISBN: 978-1-62708-260-0
..., gold, beryllium, aluminum, carbon, vanadium, molybdenum, tungsten, chromium, selenium, titanium, and uranium. Cannot be plated . Bismuth, cadmium, tin, lead, and zinc (electroplate with copper, then use electroless nickel). A wide variety of nonmetals such as plastics, wood, glass, carbide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270074
EISBN: 978-1-62708-301-0
..., causing adhesive wear and the welding of slipper pad material onto the surface of a mating cam plate. Excessive friction between the slipper pads and cam plate, in turn, created a torsional overload that caused the camshaft to break. The chapter presents SEM images showing the wear pattern on one...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170528
EISBN: 978-1-62708-297-6
... batteries. These batteries consist of a series of grid plates made from either cast or wrought calcium lead or antimonial lead that is pasted with a mixture of lead oxides and immersed in sulfuric acid. The length of the active life of a battery depends on the resistance of the lead alloy grids...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t5123000x
EISBN: 978-1-62708-351-5
..., which on alloying with the noble metal makes the brazed joint. The same author provides the first documented account of a copper-zinc braze. This involved the addition of one part of white copper (brass) to two parts of white lead (tin). A joint in a gold ewer dating from the 4th century was found...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730149
EISBN: 978-1-62708-283-9
... is produced in electric arc furnaces. In the process, flue dust with high zinc contents is treated to recover zinc. Lead battery plates are melted, refined, and recycled. The plastic case is shredded and recycled. The U.S. Environmental Protection Agency (EPA) estimates that approximately 80% of all lead...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900163
EISBN: 978-1-62708-350-8
... for gas nitriding: electroplating and paint-on methods. Electroplating One method of selective gas nitriding is to plate the areas to be stopped-off using copper or bronze. Nickel and silver are also effective but costly, restricting their use to special applications. Copper plating is perhaps most...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
..., increased plating or paint adhesion, and for lubricity (e.g., to increase the formability of sheet metals) Chromate chemical conversion coatings Enhanced bare or painted corrosion resistance, improved adhesion of paint or other organic finishes, and provides the metallic surface with a decorative finish...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560081
EISBN: 978-1-62708-291-4
... in large quantities in general engineering practice as plate, sections, tubes, and bars. Mild steel is, however, a term that must be used with caution because in commercial practice it might be used for just about any soft steel. Even so, steady progress has been made in tailoring improvements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270168
EISBN: 978-1-62708-301-0
..., it is possible for the adjacent dummy blades to slide out of the fir tree mounting and cause further damages, including jamming of the rotating mechanism, leading to the fracture of the shaft. An insight into the probable reason for the failure of the locking plate can be obtained by considering the locking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... start-ups, improper warm-up procedures, excessive load swings, and excessive heat inputs, which in turn lead to short-term overheating, resulting in failure of a tube. It is necessary to follow the protocol for start-up, operation, and shutdown as recommended by the manufacturer for a steam boiler...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270197
EISBN: 978-1-62708-301-0
... to static electric discharge, and detachment of metal particles leading to seizure of the bearing. Background The ball bearing in an electric motor failed after it had run for 552 hours after commissioning. The normal speed of the rotor was between 1500 and 2100 rpm. The failure was indicated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... depends on the nature of the fluid and the hardness of the material. A geometric shape can create a sustained delivery of fluid or can locally disturb a laminar stream and lead to turbulence. Replaceable baffle plates or deflectors are beneficial where circumstances permit their use; they eliminate...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630211
EISBN: 978-1-62708-270-9
...) metal can be very effective if the base metal is completely and uniformly coated without pinholes, cracks, scratches, abrasions, and the like. For example, plating steel with lead or tin is very effective in corrosion resistance, unless the coating has some locations that are open to the base metal...