High-nitrogen metal powder core flux-cored wire applicable to high-nitrogen armor steel welding
A technology of flux-cored welding wire and metal powder core, applied in welding equipment, welding medium, metal processing equipment, etc., can solve the problems of lack of, restricting the application of high nitrogen armored steel, restricting the development of armor protection technology, etc., to avoid deformation strengthening, The effect of improving mechanical properties and high plasticity and toughness
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Embodiment 1
[0043] A high-nitrogen metal powder-cored flux-cored wire suitable for welding high-nitrogen armor steel. The high-nitrogen metal powder-cored flux-cored wire is composed of a steel strip and a flux-cored wire; the steel strip is 60-70 wt% of the high-nitrogen metal-powder-cored flux-cored wire, and the flux-cored powder is 30% by weight of the high-nitrogen metal powder-cored flux-cored wire. ~40wt%.
[0044]The chemical composition of the steel strip is: C is 0.02-0.03wt%, Si is 0.90-1.00wt%, Mn is 2.00-7.00wt%, Cr is 14.00-15.00wt%, P≤0.002wt%, S≤ 0.003wt%; the balance is Fe and unavoidable impurities.
[0045] The chemical components of the drug core powder are: 0.5-0.7 wt% of lithium fluoride; 0.5-0.7 wt% of rare earth fluoride; 25-27 wt% of chromium nitride; 43-45 wt% of manganese powder; 16-17wt% molybdenum powder; 11-12wt% molybdenum powder; the rest is iron powder.
[0046] The mechanical properties of the weld metal formed by the high-nitrogen metal powder-cored f...
Embodiment 2
[0048] A high-nitrogen metal powder-cored flux-cored wire suitable for welding high-nitrogen armor steel. The high-nitrogen metal powder-cored flux-cored wire is composed of a steel strip and a flux-cored wire; the steel strip is 60-70 wt% of the high-nitrogen metal-powder-cored flux-cored wire, and the flux-cored powder is 30% by weight of the high-nitrogen metal powder-cored flux-cored wire. ~40wt%.
[0049] The chemical composition of the steel strip is: C is 0.03-0.05wt%, Si is 0.75-0.90wt%, Mn is 7.00-11.00wt%, Cr is 16.00-17.00wt%, P≤0.0015wt%, S≤ 0.001wt%; the balance is Fe and unavoidable impurities.
[0050] The chemical components of the drug core powder are: 0.7-0.9 wt% of lithium fluoride; 0.9-1.0 wt% of rare earth fluoride; 27-29 wt% of chromium nitride; 45-47 wt% of manganese powder; 14-16wt% molybdenum powder; 10-11wt% molybdenum powder; the rest is iron powder.
[0051] The mechanical properties of the weld metal formed by the high-nitrogen metal powder-core...
Embodiment 3
[0053] A high-nitrogen metal powder-cored flux-cored wire suitable for welding high-nitrogen armor steel. The high-nitrogen metal powder-cored flux-cored wire is composed of a steel strip and a flux-cored wire; the steel strip is 60-70 wt% of the high-nitrogen metal-powder-cored flux-cored wire, and the flux-cored powder is 30% by weight of the high-nitrogen metal powder-cored flux-cored wire. ~40wt%.
[0054] The chemical composition of the steel strip is: C is 0.01-0.02wt%, Si is 0.50-0.75wt%, Mn is 11.00-15.00wt%, Cr is 15.00-16.00wt%, P≤0.0018wt%, S≤ 0.002wt%; the balance is Fe and unavoidable impurities.
[0055] The chemical components of the drug core powder are: 0.9-1.2 wt% of lithium fluoride; 0.7-0.9 wt% of rare earth fluoride; 29-30 wt% of chromium nitride; 47-48 wt% of manganese powder; 12-14wt% molybdenum powder; 8-10wt% molybdenum powder; the rest is iron powder.
[0056] The mechanical properties of the weld metal formed by the high-nitrogen metal powder-core...
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