zinc-coated sheet
51Photozincography — Photozincography, known commercially as Zinco is the photographic process developed by Sir Henry James (Ordnance Survey) FRS (1803 1877) in the mid nineteenth century.This method enabled the accurate reproduction of images, manuscript text and… …
52plastic — plastically, plasticly, adv. /plas tik/, n. 1. Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives,… …
53Copper — For other uses, see Copper (disambiguation) …
54Corrosion — v · d · e Materials failure modes Buckling · …
55First photoconductive copy — The first photoconductive copy was made October 22 1938 by Chester Carlson in the state of New York.The technique began with the preparation of a photoconductive, sulfur coated, zinc plate. The item to be copied was a glass microscope slide on… …
56Lead came and copper foil glasswork — This article is on the techniques of lead came and copper foil glasswork. For a general overview of stained glass art, see stained glass. A typical copper foil Tiffany lamp, with a jonquil daffodil design Lead came and copper foil glasswork are… …
57History of the battery — could only function in a certain orientation. Many used glass jars to hold their components, which made them fragile. These practical flaws made them unsuitable for portable appliances. Near the end of the 19th century, the invention of dry cell… …
58Terne — is an alloy coating of lead and tin used to cover steel, in the ratio of 20% tin and 80% lead. Terne is used to coat sheet steel to inhibit corrosion. It is the one of the cheapest alloys suitable for this, and the tin content is kept at a… …
59protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …
60Hot-dip galvanizing — is a form of galvanization. It is the process of coating iron or steel with a thin zinc layer, by passing the steel through a molten bath of zinc at a temperature of around 860 °F (460 °C). When exposed to the atmosphere, pure zinc reacts with… …
