ROTARY ELONGATION OF URANIUM TUBING
One hundred twenty-eight U tubes were rotary elongated successfully on a No. 1 Witter mill. The test was performed on a small, shell-rolling mill which utilized the same three-roll rolling principle now in use in the Asseltype seamless tube mill. Feed stock for the test was supplied by extrusion and by centrifugal casting. Billets were preheated in a gas-fired muffle furnace and were protected by a continuous flow of Ar. Evaluations were made of billet preheat temperature, mandrel heating, roll cooling, roll design, roll speed, feed angie, grain structure, and type of feed-stock. Slippage problems encourtered in previous tests were corrected by roll design modifications, a reduction in roll rotational speed, and an increase in feed angle. (auth)
- Research Organization:
- National Lead Co. of Ohio, Cincinnati, OH (US)
- NSA Number:
- NSA-17-020434
- OSTI ID:
- 4721161
- Report Number(s):
- NLCO-863
- Country of Publication:
- United States
- Language:
- English
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