公开(公告)号：WO1992011103A1

公开(公告)日：1992-07-09

申请号：PCT/GB1991002281

申请日：1991-12-19

Applicant: BRITISH STEEL PLC ,  KING, Roy ,  COWLEY, Dennis ,  WHITTON, John, Rowland ,  COCHRANE, Anthony, Gordon

Inventor： BRITISH STEEL PLC

IPC: B22C09/06

CPC classification number: B22C9/22

Abstract: A method and a mould for casting a half steam diaphragm comprising a plurality of aerofoil section blades (1) spaced around and aligned lengthways radially of the diaphragm and fixed at their inner and outer extremities by cast semicircular rings (6, 7), in which the mould comprises an outer fixed portion and an inner movable portion and where said inner portion is constructed by assembling said blades in a jig, disposing casting sand (5) within spaces in said inner portion left by said blades and said jig, disassembling and removing said jig, and then lifting said inner portion into said outer portion.

Abstract translation: 一种用于铸造半蒸汽隔膜的方法和模具，包括多个翼型截面叶片（1），其间隔开并且在隔膜的径向上纵向对准，并且通过浇铸的半圆环（6,7）在其内外端固定，其中 模具包括外部固定部分和内部可动部分，并且其中所述内部部分通过将所述叶片组装在夹具中而构成，将铸砂（5）放置在由所述叶片和所述夹具留下的所述内部部分的空间内，拆卸和移除 所述夹具，然后将所述内部部分提升到所述外部部分中。