Blast furnace opening machine drill rod repairing method

The invention discloses a blast furnace opening machine drill rod repairing method, relates to the technical field of maintenance, and provides a blast furnace opening machine drill rod repairing method with simple operation, low equipment requirement and good strength after repair. The blast furnac...

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Bibliographische Detailangaben
Hauptverfasser:	XU BANGXUE, CHEN CHUANBAO, XIONG DEWU, YI CHENG, LIU JIANWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention discloses a blast furnace opening machine drill rod repairing method, relates to the technical field of maintenance, and provides a blast furnace opening machine drill rod repairing method with simple operation, low equipment requirement and good strength after repair. The blast furnace opening machine drill rod repairing method comprises the following steps: A, cutting a failure portion of a drill rod into a drill rod to be repaired, and making a non-failure portion of another drill rod into a supplementary drill rod; B, making welding grooves in the drill rod to be repaired andthe supplementary drill rod; C, fixing the drill rod to be repaired and the supplementary drill rod by using a welding fixture, so that the drill rod to be repaired and the supplementary drill rod are coaxial, and one end of the drill rod to be repaired and one end of the supplementary drill rod, provided with the welding grooves, approach each other; D, preheating the drill rod to be repaired and the supplementary drill