Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1976-07-16
1977-07-19
Baldwin, Robert D.
Metal founding
Process
Shaping liquid metal against a forming surface
164281R, 222594, B22D 1108
Patent
active
040362809
ABSTRACT:
A method of, and apparatus for, starting-up the casting of a strand during continuous casting, wherein molten metal, typically steel, is teemed through a bottom pouring outlet or opening of a tundish at a throughflow rate essentially determined by the dimensions of the pouring opening, into a continuous casting mold. By means of the dummy bar head of a dummy bar there is formed a connection between the dummy bar and the solidified strand forming in the continuous casting mold and after reaching a predetermined bath level in the mold the strand is withdrawn. According to the invention the throughflow rate is maintained smaller during a predetermined time span between the beginning of teeming the metal into the continuous casting mold and reaching the predetermined bath level by melting a tubular-shaped meltable body which has been introduced into the pouring opening, and the melting time of the meltable body is accommodated to such predetermined time span by dimensioning and/or selecting the material of such meltable body.
REFERENCES:
patent: 469454 (1892-02-01), Rogers
patent: 1184523 (1916-05-01), Field
patent: 3623534 (1971-11-01), Brennan
Hannah Brian
Rohrig Adalbert
Willim Fritz
Baldwin Robert D.
Concast AG
Kleeman Werner W.
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