Tie plates

Including joint bars, tie plates, track spikes, wheels (roUed and forged), and axles. 

The channel is a square-shaped tube fabricated from Zircaloy 4. The outer dimensions arc 5,518 inches (14 centimeters) by 5,518 inches (14 centimeters) by 166,9 inches (424 centimeters) long, The reusable channel makes a sliding seal lit on the lower tie plate surface. It is attached to the upper tic plate by the channel fastener assembly, consisting of a spring and a guide, and a cap screw secured by a lock washer. The fuel channels direct the core coolant flow through each fuel bundle and also serve to guide the control rods. 

A sensitive and reproducible colorimetric determination of the tropane alkaloids by the ferric hydroxamate method has been described,18 and so has the nitration and dehydration of tropane alkaloids on the microgram scale on tie. plates.19... 

Oaazone orange tied plates from AcjC. M.p. 287 deoomp. 

Each fuel bxmdle contains 100 rods, which are spaced and supported in a square (10 x 10) array by lower and upper tie plates. The lower tie plate has a nosepiece, which fits into the... 

Four holes in fuel assembly nosepiece (lower tie plate)... 

A thinning of thimble tubes occurred as a result of flow induced vibration. Thimble tube wear had generally been detected at locations associated with geometric discontinuities or area changes along the flow path (such as areas near the lower core plate, the core support forging, the lower tie plate, the upper tie plate, and the vessel penetration). The thimbles are contained and supported over most of the path from the seal table through the fuel assembly. The thimble is unsupported for a short distance from the top of the lower core support plate to the point of entry into the fuel assembly lower nozzle. This unsupported area is most often subject to flow-induced vibration wear. 

The core is made up of a total of 800 fuel assemblies, arranged to form an array of roughly circular cross section, as shown in Fig. 9.8. Each of the assemblies consists of an 8 x 8 square array of fuel pins, with zircaloy-2 cladding, surrounded by a square-shaped channel of zircaloy-4. The assembly has tie plates at both ends, the lower of which has a nosepiece which fits into the fuel support and distributes the coolant flow to the rods. The use... 

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