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Nickel electroplating is a process of depositing nickel onto a metal part. Parts to be plated must be clean and free of dirt, corrosion, and defects before plating can begin. [3] To clean and protect the part during the plating process, a combination of heat treating, cleaning, masking, pickling, and etching may be used. [1]
The magazine catch protrudes far enough to occasionally disengage when the pistol is placed on its left side on a hard surface. [1] The magazine could also disengage if squeezed into or jarred in a holster. [1] The manual safety lever is located on the left rear of the frame and has the kanji for "fire" and "safe" stamped onto the frame. [1]
Compound armor appeared in the mid-1880s and was made from two different types of steel, a very hard but brittle high-carbon steel front plate backed by a more elastic low-carbon wrought iron plate. The front plate was intended to break up an incoming shell, while the rear plate would catch any splinters and hold the armor together if the ...
An extractor also performs the function of an ejector in revolvers. When the striking force applied to the ejector rod is hard and fast enough, the extractor will typically eject the empty case(s) from the cylinder. Some break-action shotguns are also designed to eject empty shells completely out of the chamber when the barrel is opened.
The design and purpose of the vehicle determines the amount of armour plating carried, as the plating is often very heavy and excessive amounts of armour restrict mobility. In order to decrease this problem, some new materials ( nanomaterials ) and material compositions are being researched which include buckypaper , [ 2 ] and aluminium foam ...
Because nickel-plated Merwin and Hulbert pistols had the same cost as those without, it is rare to find Merwin and Hulbert revolvers with a blued finish. A key innovation was a rotating barrel design which allowed the user to rotate the barrel 90 degrees in order to pull the barrel and cylinder forward to remove the fired cartridge cases.
Its first common application was in tanks. After World War II, it began to fall out of use on main battle tanks and other armoured fighting vehicles intended to see front-line combat as new anti-tank weapon technologies were developed which were capable of relatively easily penetrating rolled homogeneous armour plating even of significant ...
Before plating, the surface of the material must be thoroughly cleaned. Unwanted solids left on the surface cause poor plating. Cleaning is usually achieved by a series of chemical baths, including non-polar solvents to remove oils and greases, as well as acids and alkalis to remove oxides, insoluble organics, and other surface contaminants.