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In 1892, Willson discovered an economically efficient process for creating calcium carbide, which is used in the production of acetylene gas. In 1895, he sold his patent to Union Carbide. In the same year, Willson married Mary Parks in California and moved back to Canada. He built a house for his mother in Woodstock, Ontario in 1895.
Silicon carbide was a useful material in jewelry making due to its abrasive properties, and this was the first commercial application of the Acheson process. [ 3 ] In the 1940s, first the Manhattan Project and then the Soviet atomic bomb project adopted Acheson process for nuclear graphite manufacturing (see details there).
The silicon carbide near the outer walls of the crucible sublimes and is deposited on a graphite rod near the center of the crucible, which is at a lower temperature. [2] Several modified versions of the Lely process exist, most commonly the silicon carbide is heated from the bottom end rather than the walls of the crucible, and deposited on ...
Warren M Anderson (November 29, 1921 – September 29, 2014) was an American businessman who was the chair and CEO of the Union Carbide Corporation (UCC) at the time of the Bhopal disaster in 1984. He was charged with manslaughter by Indian authorities.
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Free machining steel is steel that forms small chips when machined. This increases the machinability of the material by breaking the chips into small pieces, thus avoiding entanglement in the machinery. This enables automatic equipment to run without human interaction. Free machining steel with lead also allow for higher machining rates. Free ...
Most of the time, carbide cutters will leave a better surface finish on a part and allow for faster machining than high-speed steel or other tool steels. Carbide tools can withstand higher temperatures at the cutter-workpiece interface than standard high-speed steel tools (which is a principal reason enabling the faster machining).
Ray Crist (March 8, 1900 – July 23, 2005) was an American chemist who participated in the Manhattan Project. [ 1 ] [ 2 ] When he retired from teaching at the age of 104 in 2004, Crist is widely believed to have been America's oldest worker at the time.