Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1981-03-20
1983-02-01
Page, Thurman K.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
416241R, 427 34, B21K 304
Patent
active
043707890
ABSTRACT:
In the method for fabrication of water-cooled composite nozzle and bucket hardware for high temperature gas turbines, a high thermal conductivity copper alloy is applied, employing a high velocity/low pressure (HV/LP) plasma arc spraying process, to an assembly comprising a structural framework of copper alloy or a nickel-based super alloy, or combination of the two, and overlying cooling tubes. The copper alloy is plamsa sprayed to a coating thickness sufficient to completely cover the cooling tubes, and to allow for machining back of the copper alloy to create a smooth surface having a thickness of from 0.010 inch (0.254 mm) to 0.150 inch (3.18 mm) or more. The layer of copper applied by the plasma spraying has no continuous porosity, and advantageously may readily be employed to sustain a pressure differential during hot isostatic pressing (HIP) bonding of the overall structure to enhance bonding by solid state diffusion between the component parts of the structure.
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Muth Myron C.
Rairden, III John R.
Schilke Peter W.
Schilling William F.
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