Method of recalibrating a worn conical, especially curved tubula

Details Method of recalibrating a worn conical, especially curved tubula Method of recalibrating a worn conical, especially curved tubula

1982-02-02

1984-07-03

Godici, Nicholas P.

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

2940219, 29421E, B21D 2608

Patent

active

044571518

ABSTRACT:
A worn conical tubular mold, exhibiting irreparable surface flaws or defects at the inner tubular wall of the mold at the location of the former region of the molten bath level existing in the tubular mold when the same was previously used during continuous casting, is formed or reformed through the use of an explosive forming technique with the aid of a calibration arbor or mandril so as to possess a new reversed taper. As a result, the surface flaw or defect now is located at the region of what becomes the new strand outlet of the reformed tubular mold and unimpaired, fissure-free mold wall material comes to lie at the region of the tubular mold where there will appear the new molten bath level when the reformed tubular mold then is again used for casting purposes.

REFERENCES:
patent: 3646799 (1972-03-01), Kipp et al.
patent: 3927546 (1975-12-01), Shrum
patent: 4081983 (1978-04-01), Shrum

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