| 摘要 |
The method for introducing a cored wire (2) into a bath (3) of molten metal consists in extracting the cored wire from a reel (9), especially from the core of the reel and in making it run into the molten metal bath (3), one part of the path travelled by the cored wire being formed in a guide tube (13), the distal end (32) of which is at a defined height (H) above the surface (PP') of the metal bath (3). The cored wire (2) is driven and subjected to a straightening operation under conditions practically not altering its substantially circular cross section and allowing it to be introduced and penetrate into the depth of the bath in a vertical direction. The installation (1) includes means (12) for driving said cored wire from a reel (9), in which the wire is extracted from the core of the reel, a guide tube (13) for guiding the cored wire (2), the distal end (32) of the tube being at a defined height (H) above the surface of the bath (3) and having a vertical direction, and means (12) for straightening the cored wire (2) that are placed in front of its entry into the guide tube (13), said straightening means being capable of giving the cored wire (2) a straight direction without altering its circular cross section. Preferably, the straightening means consist of a plurality of sets of two press rolls, the contact between the cored wire and each press roll being along a contact surface or along at least two lines of contact. |
