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Casting Uranium Bars as a Substitute for the Extrusion Process
The usual method of producing uranium slugs for the reaction pile is to cast the metal into billets which are extruded into rod about 1.45 inches in diameter. Slugs are then machined from this to the final size of 1.359 inches in diameter by 8 inches long. Extrusion is done in the gamma range at a temperature of about 1000 C, where the metal is soft enough to be extruded at relatively low pressures. This operation is difficult and expensive and the product is not entirely satisfactory. The billets must be protected from oxidation during heating and extruding and the extruded rod must likewise be protected during cooling. Loss of metal due to oxidation is appreciable and a relatively large amount of scrap is produced. The production of dies suitable for use at the high temperatures involved is troublesome. The extruded rod must be straightened before machining and frequently contains stringers of oxide and voids or other internal defects.
Date:
January 1, 1945
Creator:
Lindlief, W. Earl
System:
The UNT Digital Library
Progress Report for Month of December 1944
None
Date:
January 1, 1945
Creator:
unknown
System:
The UNT Digital Library
PROGRESS REPORT ON METALLURGY OF TUBALLOY TO UNIVERSITY OF CHICAGO
None
Date:
January 1, 1945
Creator:
unknown
System:
The UNT Digital Library
Thermal Stresses and Strains in a Finite Cylinder With No Surface Forces
None
Date:
January 1, 1945
Creator:
Murray, F. H.
System:
The UNT Digital Library
The Control of the HF Concentration of Electrolyte by Electrical Conductance Measurements. Problem Report for Period February 23, 1944 to November 27, 1944
None
Date:
January 11, 1945
Creator:
Turnbull, S. G., Jr.
System:
The UNT Digital Library
METALLURGY DIVISION PROGRESS REPORT FOR THE PERIOD DECEMBER 30 1944 TO JANUARY 6, 1945
None
Date:
January 11, 1945
Creator:
unknown
System:
The UNT Digital Library
Rough notes, coefficient tests, original data
This report provides the original data in the form of rough notes for production reactor coefficient tests.
Date:
January 11, 1945
Creator:
Menegus, R. L.
System:
The UNT Digital Library
The Solvent Extraction of Pu(Iv) by Trifluoroacetylacetone
None
Date:
January 15, 1945
Creator:
Crandall, H. W.; Thomas, J. R. & Reid, J.C.
System:
The UNT Digital Library
Technical Department report on Production Test No. 313-58-M: Recovery of lead dipped slugs
A number of slugs have been dipped in lead, then Al-Si and canned. Laboratory experiments showed that the can and outer bonding layers could be removed by the standard caustic-nitrate treatment. The alloy layer was removed from several slugs by hot nitric acid without use of hydrofluoric acid. It was desired to extend the method to the plant process and to clean accumulated lead dipped pieces. Lead dipped slugs may be cleaned by the regular recovery process with a weight loss of about 0.03 lbs. per slug. Attempts to modify or shorten the procedure were not successful. Twenty-four (24) of the recovered slugs were canned satisfactorily.
Date:
January 17, 1945
Creator:
Eubank, L. D.
System:
The UNT Digital Library
DIFFUSION OF ELECTROPLATES. Final Report on a Part of Problem Assignment No. 381-ML-54-3, F.S. 17. Section T-IV
None
Date:
January 19, 1945
Creator:
Foote, F.; Clark, J.R.; Nelson, B.J. & Morris, H.
System:
The UNT Digital Library
Technical Department report on Production Test No. 313-40-M: Machinability of heavy metal
None
Date:
January 19, 1945
Creator:
Grills, R. C.
System:
The UNT Digital Library
DEVELOPMENT OF SHIPPING CYLINDERS FOR C-216 F$sub 2$ . Problem Report JWD-43
None
Date:
January 20, 1945
Creator:
Froning, J.F. & Richards, M.K.
System:
The UNT Digital Library
PLANT FOR PACKAGING FIFTEEN POUNDS C-216 F$sub 2$ PER DAY BY THE LIQUEFACTION METHOD. Problem Report JWD-45
None
Date:
January 20, 1945
Creator:
Froning, J.F. & Richards, M.K.
System:
The UNT Digital Library
C-616 UF$sub 6$ HYDROLYSIS FUMES
Experiments were carried out to determine how fast the concentration of suspended material decreases in fumes produced by the hydrolysis of UF/sub 6/ vapor in damp air. The rate of aggregation is a function chiefly of the number of particles per unit gas volume, but depends also on the chemical composition, size and shape of the particles, the temperature and pressure, and the degree of agitation. The rate of settling depends on the weight and shape of the particles and the viscosity of the gas. (W.L.H.)
Date:
January 24, 1945
Creator:
Fisher, M. & Cines, M.R.
System:
The UNT Digital Library
FILM FORMATION IN "W" ANNULUS
None
Date:
January 29, 1945
Creator:
Larson, R E & Szulinski, M J
System:
The UNT Digital Library
Progress Report January 20 to January 27, 1945
None
Date:
January 31, 1945
Creator:
Foote, F.; Brugmann, E. W. & Chapin, J. H.
System:
The UNT Digital Library
METALLURGY OF TUBALLOY URANIUM . Progress Report
None
Date:
February 1, 1945
Creator:
unknown
System:
The UNT Digital Library
PROGRESS REPORT FOR DECEMBER 1944
None
Date:
February 6, 1945
Creator:
Gray, A G & Thompson, J G
System:
The UNT Digital Library
PROGRESS REPORT FOR MONTH OF JANUARY 1945
None
Date:
February 8, 1945
Creator:
Cohen, Morris
System:
The UNT Digital Library
Final Report on the Results of Exposure of Tuballoy Uranium at Elevated Temperature in Air, Nitrogen, and Neutral Atmospheres
None
Date:
February 10, 1945
Creator:
Lindlief, W. E. & Holm, V. C. F.
System:
The UNT Digital Library
The Site B Foundry (Final Report on Part I of P.A. No. 151-ML-54-2, F.S. 41)
The Site B Foundry is equipped for the melting and casting of tuballoy and its alloys. Castings weighing up to 750 pounds and as long as 40 inches can be made. Melting can be carried out in the vacuum, in inert gases or under fluxes. Heating is by high frequency induction. A description of the generally foundry layout, the furnace construction and operation, and of the auxiliary equipment is given in this report. The casting technique used in the Site B Foundry is designed to minimize piping and cold shuts in the billets. The top of the mold is kept hot and freezing of the billet takes place from the bottom. This hot topping minimizes piping. Controlled pouring into warm molds minimized cold shuts.
Date:
February 12, 1945
Creator:
Lauletta, Paul
System:
The UNT Digital Library
Comparison of observed and calculated flattening at 105-D
The total power output of a unit may be represented by the power output of the most productive tube or tubes multiplied by a quantity designated as the ``number of effective tubes.`` The number of effective tubes observed at 105-D under two different arrangements of poisoned columns has been compared with values of this quantity calculated from theory. It was found that in each case the observed number of effective tubes was about 5% less than the ideal number obtainable by an optimum arrangement of the poison. In the case in which two poisoned columns in the pile took up 110 ih it was found that the loss consisted of 2% due to the necessary presence of a control rod in the pile and 3% due to the fact that the actual arrangement of the poison was not the optimum one. In the case in which a single, off center, poison column took up 60 ih, it was found that very little of the loss was due to the presence of the control rod and almost all of it was due to the eccentric position of the P-column. As a further result of this study, it was found that, apart …
Date:
February 14, 1945
Creator:
Gast, P. F.
System:
The UNT Digital Library
Pile discharge water monitoring. Final report, IDS-19
None
Date:
February 23, 1945
Creator:
Weller, B. L.
System:
The UNT Digital Library
METHOD OF WASHING URANIUM METAL SAWDUST
None
Date:
February 26, 1945
Creator:
Oppold, W.A.
System:
The UNT Digital Library