Corrosion-resistant aluminothermic welding flux suitable for U68CuCr steel rail and welding method thereof

• Main Author: OUYANG MINLU
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to a corrosion-resistant aluminothermic welding flux suitable for a U68CuCr steel rail and a welding method thereof. The aluminothermic welding flux comprises, by weight, 17.0%-17.6% of aluminum powder, 62.4%-64.0% of iron oxide, 9%-10% of cast iron pills with the C content bei...