uncleflo
Registered since September 28th, 2017
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Tag selected: graphite.
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PYI Inc. | PSS Type A Shaft Seal
Saved by uncleflo on February 6th, 2022.
Product Specifications: PSS Type A Seal Dimensions The Type A PSS Shaft Seal is a mechanical face seal. The sealing surface is created between the flat surfaces of the rotating stainless-steel rotor and the stationary carbon flange. The stationary carbon flange is attached to the front side of the bellows with hose clamps, and the back end of the bellows fits over the Stern tube and is secured with hose clamps. The stainless-steel rotor is fitted on the shaft in front of the carbon flange. The stainless-steel rotor compresses the bellows before the rotor is secured to the shaft with set screws. This compression (pre-load) maintains constant contact between the two flat faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable fore and aft movement due to propeller thrust. In addition, the carbon flange is over-bored to the shaft diameter allowing it to “float” around the shaft and thus compensate for most misalignment and vibration problems. The stainless-steel rotor is sealed to the shaft by two O-rings recessed into the collar's bore. These O-rings rotate with the shaft and stainless-steel rotor and do not experience wear during operation.
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Nuclear Energy Agency (NEA) - Chernobyl: Chapter I. The site and accident sequence
Saved by uncleflo on January 17th, 2022.
At the time of the Chernobyl accident, on 26 April 1986, the Soviet Nuclear Power Programme was based mainly upon two types of reactors, the WWER, a pressurised light-water reactor, and the RBMK, a graphite moderated light-water reactor. While the WWER type of reactor was exported to other countries, the RBMK design was restricted to republics within the Soviet Union. The Chernobyl Power Complex, lying about 130 km north of Kiev, Ukraine, and about 20 km south of the border with Belarus (Figure 1), consisted of four nuclear reactors of the RBMK-1000 design, Units 1 and 2 being constructed between 1970 and 1977, while Units 3 and 4 of the same design were completed in 1983 (IA86). Two more RBMK reactors were under construction at the site at the time of the accident. To the South-east of the plant, an artificial lake of some 22 km2 , situated beside the river Pripyat, a tributary of the Dniepr, was constructed to provide cooling water for the reactors.
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Reinforced carbon–carbon - Wikipedia, the free encyclopedia
Saved by uncleflo on May 29th, 2014.
Carbon fibre-reinforced carbon (aka carbon–carbon, abbreviated C/C) is a composite material consisting of carbon fiber reinforcement in a matrix of graphite. It was developed for the nose cones of intercontinental ballistic missiles, and is most widely known as the material for the nose cone and wing leading edges of the Space Shuttle orbiter. It has been used in the brake systems of Formula One racing cars since 1976; carbon–carbon brake discs and pads are a standard component of Formula One brake systems.
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Graphite, carbon & graphite composite machining & fabricating
Saved by uncleflo on May 29th, 2014.
Graphite Machining, Inc. (GMI) is one of the major graphite machining companies in North America. We offer high quality, precision machining of Graphite, Carbon and Graphite Composites. GMI has extensive experience in a wide variety of applications. We can handle your requirements from drawings to finished parts to custom packaging and shipping. Plus, we use our expertise to help reduce costs along the way.
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