Patent ID: 8347499
Filing Date: 2013-01-08
Classification: B22D,F01D,F05D,Y10T

Abstract:
1. A method for producing a cast turbine casing for a rotating machine, comprising: casting the turbine casing separately in two casing halves which are separable by a parting plane which axially passes through the turbine casing, and in which the two casing halves are each comprised of at least two separate casing sections, each of the casing halves is cast in one piece; separating each of the casing halves into the at least two casing sections along a radially extending parting plane so that there are at least two axially separated casing sections with respective axially opposite parting edges; joining the separated casing sections together to form a respective assembled one of the casing halves; and joining the two assembled casing halves together along the parting plane to form the turbine casing, wherein a casting mold is formed and made available in such a way that radially and/or axially opposite joining contours, which are respectively formed in a counter-contoured manner, are provided, respectively, proximate to the parting planes of the casing sections, which are formed by separation, the joining contours being formed as a loose tongue-and-groove connection.