Small-caliber submerged-arc high-frequency welded steel pipe

The utility model discloses a small-caliber submerged-arc high-frequency welded steel pipe. The device comprises a steel pipe I, a through hole I, a steel pipe II and a through hole II, the first through hole is located in the first steel pipe. The second through hole is located in the second steel...

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Bibliographische Detailangaben
1. Verfasser:	SHI YANMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PIPES SOLDERING OR UNSOLDERING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The utility model discloses a small-caliber submerged-arc high-frequency welded steel pipe. The device comprises a steel pipe I, a through hole I, a steel pipe II and a through hole II, the first through hole is located in the first steel pipe. The second through hole is located in the second steel pipe. The second steel pipe is located on one side of the first steel pipe, a boss is fixedly connected to the surface of the side, close to the first steel pipe, of the second steel pipe, a positioning block is welded to the surface of the boss, a soldering lug is arranged on one side of the positioning block, an inserting groove is formed in the surface of the side, close to the second steel pipe, of the first steel pipe, and a positioning groove is formed in the top end. The utility model hasa novel design, the welding fixture is simple in structure, convenient to operate and good in using effect, the inserting grooves are formed in the surface of the first steel pipe, the bosses are arranged on the surface of t