Nickel is a silver-white metal that is mainly found in sulfur and
arsenic ores. Nickel is obtained by roasting nickel oxide and then
reduced using carbon.
Pure nickel is produced using the so-called moon process, in which impure nickel is reacted with carbon monoxide (CO). This produces nickel carbonyl [Ni
(CO) 4], which is then decomposed at 200 C to finally give nickel with a purity of 99.99%.
The technology for the production of nickel tapes depends on the alloy from which they are made. So semi-finished products, the material of which is primary nickel, are made using electrolysis .
the same methods are used as in the production of nickel sheet and strip, namely, cold rolling. After it, a number of technological operations are carried out aimed at cleaning the surface from chemical by-products, giving it the necessary technological and mechanical properties, as well as the
required values of length and width. Such operations include heat treatment, dressing, mechanical and chemical finishing (processing), trimming, cutting.Nickel products N-1 are produced unannealed (solid). Nickel tapes are made in a soft, semi-solid, solid state.
Product sizes should correspond to certain ranges. A distinctive feature of the described semi-finished products is the thickness. It is significantly
smaller than, for example, sheets and strips, which also apply to flat sheet metal. The electrolysis nickel tape may have a thickness of from 0.05 (foil)
to 0.20 mm, cold-formed - from 0.05 to 2 mm. Another distinguishing feature is the length. The fact that the tapes are usually delivered rolled up
It is worth noting that nickel foil is a tape that has a small thickness, which is usually 0.1 mm or less.