Coating of welding rod, welding rod, preparation method of welding rod and application of welding rod in surfacing of austenite-ferrite dissimilar steel material

The invention discloses a coating of a welding rod, the welding rod and a preparation method and application of the welding rod. The coating is prepared from the following components in parts by weight: 8.0 to 14.0 parts of rutile, 6.0 to 8.0 parts of marble, 1.5 to 3.5 parts of fluoride, 1.5 to 3.0...

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Hauptverfasser: QIU TIAN, ZHANG XIANJUN, YUAN NING, LIU QIWANG, DONG YUANYUAN, YANG FEI, YANG DENGKE, ZHANG SHANGLIN, MA ZHAODANDAN, HUANG JUNLIN, LI DONGHUI, JIANG YONG, HUANG YONG, DU HUA
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a coating of a welding rod, the welding rod and a preparation method and application of the welding rod. The coating is prepared from the following components in parts by weight: 8.0 to 14.0 parts of rutile, 6.0 to 8.0 parts of marble, 1.5 to 3.5 parts of fluoride, 1.5 to 3.0 parts of mica, 5.0 to 9.0 parts of potassium feldspar, 0.8 to 1.6 parts of electrolytic manganese, 0.4 to 1.0 part of ferrotitanium, 2.0 to 4.0 parts of chromium metal, 1.0 to 3.0 parts of nickel metal, 0.1 to 0.6 part of iron sand, 0.1 to 0.4 part of calcium sulfide and 0.4 to 0.6 part of sodium carbonate; the coating and the core wire form the welding rod, the welding rod is applied to austenite-ferrite dissimilar steel surfacing, deposited metal formed through surfacing is good in plasticity and toughness and excellent in corrosion resistance, and the surfacing requirements of petroleum, chemical engineering, hydraulic engineering and nuclear power equipment are met. 本发明公开了一种焊条的药皮、焊条及其制备方法和应用,药皮按重量份计包括:金红石8.0份-