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Title: APPARATUS FOR MELTING AND POURING METAL

Abstract

This patent relates to a crucible for melting and pouring a metal under controlled atmospheric conditions. The crucible has a frangible plug in the bottom and a retaining device to prevent the entrance of the broken portions of the plug into the mold without interfering with the flow of the melt. After the charge has been melted, a knockout rod is lowered through the charge and forced against the frangible plug sufficiently to break off the closure disk along a previously scored line. The disk drops onto a retaining grid large enough to permit the flow of metal around the disk and into the mold below. Thts arrangement elimnates the entry of broken portions of the plug into the mold, thereby elimnating a common cause of imperfect castings.

Inventors:
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4325576
Patent Number(s):
US 2824732
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-010252
NSA Number:
NSA-12-010252
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; CONFIGURATION; CRUCIBLES; INSTRUMENTS; MELTING; METALS; PATENT; RODS

Citation Formats

Harris, F.A. APPARATUS FOR MELTING AND POURING METAL. United States: N. p., 1958. Web.
Harris, F.A. APPARATUS FOR MELTING AND POURING METAL. United States.
Harris, F.A. Tue . "APPARATUS FOR MELTING AND POURING METAL". United States.
@article{osti_4325576,
title = {APPARATUS FOR MELTING AND POURING METAL},
author = {Harris, F.A.},
abstractNote = {This patent relates to a crucible for melting and pouring a metal under controlled atmospheric conditions. The crucible has a frangible plug in the bottom and a retaining device to prevent the entrance of the broken portions of the plug into the mold without interfering with the flow of the melt. After the charge has been melted, a knockout rod is lowered through the charge and forced against the frangible plug sufficiently to break off the closure disk along a previously scored line. The disk drops onto a retaining grid large enough to permit the flow of metal around the disk and into the mold below. Thts arrangement elimnates the entry of broken portions of the plug into the mold, thereby elimnating a common cause of imperfect castings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {2}
}