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Laurell Technologies WS-400 spin coater used to apply photoresist to the surface of a silicon wafer. Spin coating is a procedure used to deposit uniform thin films onto flat substrates. Usually a small amount of coating material in liquid form is applied on the center of the substrate, which is either spinning at low speed or not spinning at all.
Howmet's roots go back to 1926, when Austenal, a company that manufactured materials for dental appliances, was founded. Its founders, Reiner Erdle and Charles Prange, worked to improve investment chrome base castings using two separate investments: The first coating, named "protective coat", gives a smooth finish.
Spin casting is a favored method for fabricating items in the specified materials – low temperature metals and thermoset plastics. Compared to the two main competing processes, injection molding and (zinc) die-casting, spin casting has significant advantages in terms of startup cost and ease of use.
Custom wheels for lowriders also used naked ladies on wheel covers, and these were the first to feature a floating or spinner-type wheel device. A bracket was used to mount to the spindle, so while the lady stood still the wheel spun around. [ 17 ]
With the larger alloy wheels came Tru-Spinner Wheels and spinner wheel add-on spinners that would free-spin and continue to free-spin after the alloy wheel itself came to rest. American inventor James JD Gragg of International and American Tru-Spinners were the original ones and were leaders in the industry.
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The precursor sol can be either deposited on a substrate to form a film (e.g., by dip-coating or spin coating), cast into a suitable container with the desired shape (e.g., to obtain monolithic ceramics, glasses, fibers, membranes, aerogels), or used to synthesize powders (e.g., microspheres, nanospheres). [1]
Ford recalls nearly 300,000 F-Series trucks over defective fuel pumps. News. ABC News. Man in critical condition after being pushed onto New York City subway tracks: Police. Sports. Sports.