The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 1997
Filed:
Jul. 20, 1995
Adalbert Roehrig, Thalwil, CH;
Franciszek Kawa, Adliswil, CH;
Concast Standard AG, Zurich, CH;
Abstract
In the case of a continuous casting mould for a double T-shaped preliminary section comprising a mould cavity cross-section which is composed of two flange parts (4, 4') and a web part (5) firstly sticking of the billet in the mould is to be prevented and secondly simplified mould production is to be indicated. Furthermore it should be possible to produce sections of this type in tubular moulds, with high casting speed and high billet quality such that their dimensions are as close as possible to the final dimensions. To this end it is proposed that the mould cavity (3) be provided at the mould end on the pouring-in side, on both sides along the web (5) in each case with a cross-sectional enlargement, in the form of bulges (8), with respect to the identical mould cavity portion (7) at the mould end on the billet outlet side. A curve height (H) of the web bulge (8) should decrease between the end on the pouring-in side and the end on the billet outlet side in such a way that a geometric extension of an associated chord (9), which extension results from this decrease, completely or partially compensates the amount of shrinkage of the billet shell transversely to the longitudinal axis of the billet.