Zinc removal process for welding seam area of galvanized steel pipe of net rack

• Main Authors: CHO HWAN RAE, ZHANG KAI, SUN ZHIXING, ZHAO FENGSHAN, JIN RONGYAO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to the technical field of galvanized steel pipe welding dezincification, in particular to a net rack galvanized steel pipe welding seam area dezincification process, which comprises the following steps of pipe fitting installation, equipment installation, height adjustment, high-temperature oxidation and cooling butt joint, and has the beneficial effects that the aim of stripping a zinc layer is achieved by setting a mode of cooling butt joint after high-frequency heating; therefore, good process conditions are created for welding of the galvanized pipe, the welding quality is effectively guaranteed, and the equipment has the advantages of being easy and convenient to operate, reliable, efficient and the like. 本发明涉及镀锌钢管焊接除锌技术领域，具体为一种网架镀锌钢管焊缝区域除锌工艺，除锌工艺包括以下步骤管件安装、设备安装、高度调节、高温氧化和冷却对接，有益效果为：通过设置高频加热后冷却对接的方式，达到锌层剥离的目的，从而为镀锌管的焊接创造了很好的工艺条件，进而有效的保证了焊接的质量，该设备具有操作简便，可靠高效等特点。