First demo of direct foam extrusion. (Extrusion).Direct extrusion of a foam profile will be demonstrated publicly for the first time at NPE NPE NullPointerException (Java) NPE Network Processing Engine NPE National Policy on Education NPE National Plastics Exposition NPE Natural Penis Enlargement NPE Nutrition Program for the Elderly , says Leistritz of Somerville, N.J. Its demonstration will use an extremely long, 52:1 L/D L/D Labor and Delivery L/D Lethal Dose L/D Lift/Drag (ratio) L/D Low Dynamic L/D Limiter/Discriminator L/D Loading / Discharging Rate (shipping) , corotating twin-screw model ZSE-50 (50 mm diam.) with a 150-hp motor. Melting and mixing of a polyolefin and additives is done in the first two barrel sections. Then supercritical Adj. 1. supercritical - (especially of fissionable material) able to sustain a chain reaction in such a manner that the rate of reaction increases critical - at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass CO2 is injected in a special barrel section using a high-pressure injection port and a piston pump. The remaining nine barrel sections function as a heat exchanger with intensive water cooling. Foaming is traditionally done in a tandem set-up with a single- or twin-screw extruder followed by a separate heat exchanger. Leistritz's system melts, mixes, foams, and cools all in one extruder. Leistritz has delivered such systems commercially for at least five years, including one installed since 1998 at the National Research Council of Canada The National Research Council Canada (NRC) is Canada's leading organization for scientific research and development. History NRC was established in 1916, mainly to advise the government. Then, in the early 1930s, laboratories were built in Ottawa. in Boucherville, Que. Tel.: (908) 685-2333, www.leistritz-extrusion.de |
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