Accession Number:

AD0620559

Title:

GATING SYSTEMS FOR METAL CASTING,

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1948-09-13

Pagination or Media Count:

22.0

Abstract:

The investigation was made to observe the effects of gate design upon the flow and turbulence of liquid steel as a casting is poured. Gating systems and pouring techniques such as top pouring, whirl gates, riser gates, finger gates, horn gates, step gates and bottom side gates were studied. The results of these studies showed that many gating systems did not function as commonly supposed. The behavior of each system is described. To observe the discharge of molten steel into mold cavities, use was made of motion pictures at 64 frames per second. High-speed photography at 1000 frames per second was used in a study of the flow of molten steel through sprues. The most interesting scenes of flow and turbulence produced by the various gating systems have been assembled into a 16-mm sound film. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE