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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1945
Casting Uranium Bars as a Substitute for the Extrusion Process

Casting Uranium Bars as a Substitute for the Extrusion Process

Date: January 1, 1945
Creator: Lindlief, W. Earl
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
The Direct Pouring of Liquid Metal from the Reduction Bomb

The Direct Pouring of Liquid Metal from the Reduction Bomb

Date: March 9, 1945
Creator: Wilhelm, H. A.
Description: By the time regular crude biscuit production was interrupted at Ames on November 9, 1944, we had made well over 100 special experimental castings by pouring the liquid metal directly from the bomb. The workmen on the regular crude production line were alternating these special castings with the regular runs without the assistance of the research group. The process had reached a state of development 'wherein the castings were made by pouring batches of about 135 pounds of liquid metal directly from the bomb into a water-cooled steel mold in the presence of air at atmospheric pressure. The pouring operation was effected through a mechanically operated valve in the bottom of the bomb. The workability of such a process has been well established, and the quality of the metal has been proved through candling and chemical tests. The first sixty billets produced by this method have been extruded successfully. A number of changes, designed to improve the quality and yield of the product and to simplify the process, have been made since producing the metal for these tests. The first set-up to test the possibility of pouring the metal directly from the bomb was made on a small scale here ...
Contributing Partner: UNT Libraries Government Documents Department
The Site B Foundry (Final Report on Part I of P.A. No. 151-ML-54-2, F.S. 41)

The Site B Foundry (Final Report on Part I of P.A. No. 151-ML-54-2, F.S. 41)

Date: February 12, 1945
Creator: Lauletta, Paul
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Neutron Spectrometer

Neutron Spectrometer

Date: 1945
Creator: McDaniel, B. D.
Description: Technical drawings of spectrometer to measure neutrons in a nuclear reactor.
Contributing Partner: UNT Libraries Government Documents Department
Model 300 Sweep

Model 300 Sweep

Date: 1945
Creator: Elmore, W. C.
Description: Technical drawing of signal generators for use in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
Pulse Unit Model 1

Pulse Unit Model 1

Date: 1945
Creator: Titterton, E. W.
Description: Technical drawing of pulse circuits for use in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
Video Amplifier & Scope

Video Amplifier & Scope

Date: 1945
Creator: Titterton, E. W.
Description: Technical drawing of video amplifiers for nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
Battery Operated Field Pulser

Battery Operated Field Pulser

Date: 1945
Creator: Titterton, E. W.
Description: Technical drawing of pulse generators for use in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
1500 Uses Delay Unit

1500 Uses Delay Unit

Date: 1945
Creator: Titterton, E. W.
Description: Technical drawing of signal generators in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
Multiple Scope and Power Supply

Multiple Scope and Power Supply

Date: 1945
Creator: Titterton, E. W.
Description: Technical drawing of electronic circuits and electric power supplies for use in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
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