Alloy powder for CO2 gas shielded welding powder overlaying

The invention provides alloy powder for CO2 gas shielded welding powder overlaying, and belongs to the technical field of material surface wear-proof overlaying. The alloy powder is mainly composed of 15-25% of ferrotitanium, 15-20% of vanadium powder, 5-10% of molybdenum powder, 35-50% of chromium...

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Bibliographic Details
Main Authors LIU PENG, HUO YUSHUANG, LUO HUI, ZHANG YUANBIN
Format Patent
LanguageEnglish
Published 03.06.2015
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
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Summary:The invention provides alloy powder for CO2 gas shielded welding powder overlaying, and belongs to the technical field of material surface wear-proof overlaying. The alloy powder is mainly composed of 15-25% of ferrotitanium, 15-20% of vanadium powder, 5-10% of molybdenum powder, 35-50% of chromium powder, 5-8% of ferroboron and 4-10% of graphite. After the surface of a workpiece is precoated by the powder, CO2 gas shielded welding is utilized for overlaying, welding wires are made of H08Mn2Si with the diameter of 1.0mm, a welding current ranges from 120A to160A, an arc voltage ranges from 18V to 25V, the welding speed ranges from 15 meters per hour to 20 meters per hour, and gas flow ranges from 10 liters per minute to 15 liters per minute. CO2 powder overlaying has the small dilution rate, the high deposition rate and the good overlaying layer performance, the surface hardness reaches HRC50-55, and the alloy powder is mainly used for surface wear-proof overlaying of steel parts.
Bibliography:Application Number: CN201310421966