| 摘要 |
The pouring tube (1) comprising a tubular section (3) with a pouring channel (6) and a top plate (2) with an aperture has flat thrust surfaces (5) beneath the plate that form an angle of 20 - 80 degrees, and preferably close to 45 degrees, with axis (7) of the pouring channel. The pouring tube is set in a tube feed and changer with springs applying a thrust force at 30 - 60 degrees, and preferably 45 degrees to the tube channel's axis. |
