Manufacturing method of long nozzle

The invention discloses a manufacturing method of a long nozzle and belongs to the field of manufacture of metallurgical refractory materials. The method comprises following steps: step one, a basic mold of the long nozzle is assembled; step two, filling of a long nozzle blank is performed; step thr...

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Bibliographische Detailangaben
Hauptverfasser: TIAN LIZHI, XIA FAYE
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a manufacturing method of a long nozzle and belongs to the field of manufacture of metallurgical refractory materials. The method comprises following steps: step one, a basic mold of the long nozzle is assembled; step two, filling of a long nozzle blank is performed; step three, filling of a thermal insulation lining material is performed; step four, a uniform workpiece which consists of a triangular support at the bottom and three metal round bars at the upper part is taken out, the triangular support at the bottom is an equilateral triangle and is welded by three metal round bars with the same length, and the three metal round bars at the upper part have the same diameter and are vertical to the bottom surface; step five, a cylinder is taken out; step six, the cylinder is covered with a rubber cover, and after sealing, compression molding is executed. By means of change of the uniform workpiece, the uniform workpiece is not required to be taken out in a filling process of the thermal