air-acetylene torch

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• acetylene — acetylenic /euh set l en ik/, adj. /euh set l een , in/, n. Chem. a colorless gas, C2H2, having an etherlike odor, produced usually by the action of water on calcium carbide or by pyrolysis of natural gas: used esp. in metal cutting and welding,… …   Universalium

• Torch — Originally, a torch was a portable source of fire used as a source of light, usually a rod shaped piece of wood with a rag soaked in pitch and/or some other flammable material wrapped around one end. Torches were often supported in sconces by… …   Wikipedia

• Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …   Wikipedia

• Bank vault — A bank vault is a secure space where money, valuables, records, and documents can be stored. Vaults protect their contents with armored walls and a tightly fashioned door closed with a complex lock. Vault technology developed in a type of arms… …   Wikipedia

• Oxyhydrogen — Knallgas redirects here. For bacteria which oxidize hydrogen, see Knallgas bacteria. Nineteenth century electrolytic cell for producing oxyhydrogen. Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases, typically in a 2:1 molar ratio,… …   Wikipedia

• Welding — is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle ) that cools to… …   Wikipedia

• Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also …   Wikipedia

• Taxonomy of manufacturing processes — This tree lists various manufacturing processes arranged by similarity of function.#Casting ##Sand casting ##Plastic mold ##Shell mold ##Investment casting (lost wax, precision) ##Permanent mold ##Centrifugal casting ##Die casting ##Slush or… …   Wikipedia

• Batman's utility belt — Infobox comics elements name = Utility Belt imagesize = caption = Batman s utility belt and its contents publisher = DC Comics debut = Detective Comics #29 (July 1939) creators = Gardner Fox type = Equipment supports = Batman subcat=BatmanBatman… …   Wikipedia

• Oxygen concentrator — A home oxygen concentrator in situ in an emphysema patient s house. The model shown is the DeVILBISS LT 4000 …   Wikipedia

• Case hardening — or surface hardening is the process of hardening the surface of a metal, often a low carbon steel, by infusing elements into the material s surface, forming a thin layer of a harder alloy. Case hardening is usually done after the part in question …   Wikipedia