A kind of rare earth alloy hot-dip coated steel plate and its production method
A technology of rare earth alloys and production methods, applied in hot-dip plating process, metal material coating process, coating, etc., can solve the problem of poor appearance, strength and other comprehensive properties, low bonding strength between coating and substrate, and inability to meet heavy corrosion protection, etc. problems, achieve the effect of flat and smooth coating surface, save manpower and equipment costs, and improve quality stability
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Embodiment 1
[0048] A rare earth alloy hot-dip coating steel plate, comprising a base steel plate and a rare earth alloy hot-dip coating; the rare earth alloy hot-dip coating covers the surface of the base steel plate; the composition of the rare earth alloy hot-dip coating contains :
[0049] 0.1-0.8% magnesium, 0.05-0.15% aluminum, 0.002-0.090% lanthanum and vanadium, 0.03-0.09% nickel, 0.01-0.25% bismuth, 0.05-0.13% lead, and the remainder includes zinc and unavoidable impurities; among them, The mass ratio of lanthanum and vanadium is 1: (0.42-0.48).
[0050] Preferably, the composition of the rare earth alloy hot-dip coating contains in mass %:
[0051] 0.25-0.65% magnesium, 0.08-0.13% aluminum, 0.038-0.082% lanthanum and vanadium, 0.04-0.08% nickel, 0.11-0.21% bismuth, 0.07-0.12% lead, and the remainder includes zinc and unavoidable impurities; among them, The mass ratio of lanthanum and vanadium is 1:(0.44~0.47).
[0052] Preferably, the composition of the rare earth alloy hot-di...
Embodiment 2
[0067] A rare earth alloy hot-dip coating steel plate, comprising a base steel plate and a rare earth alloy hot-dip coating; the rare earth alloy hot-dip coating covers the surface of the base steel plate; the composition of the rare earth alloy hot-dip coating contains :
[0068] Magnesium 0.25%, aluminum 0.08%, lanthanum and vanadium 0.038%, nickel 0.04%, bismuth 0.11%, lead 0.07%, the rest includes zinc and unavoidable impurities; among them, the mass ratio of lanthanum and vanadium is 1:0.44.
[0069] In this embodiment, the base steel plate is 45 carbon steel plate.
[0070] In this embodiment, the composition of the rare earth alloy hot-dip coating is in mass%, and further contains:
[0071] Ce 0.085%.
[0072] In this embodiment, the composition of the rare earth alloy hot-dip coating is in mass%, and further contains:
[0073] Titanium 0.092%.
[0074] In this embodiment, the production method of the rare earth alloy hot-dip coated steel sheet includes the followin...
Embodiment 3
[0082] A rare earth alloy hot-dip coating steel plate, comprising a base steel plate and a rare earth alloy hot-dip coating; the rare earth alloy hot-dip coating covers the surface of the base steel plate; the composition of the rare earth alloy hot-dip coating contains :
[0083] Magnesium 0.65%, aluminum 0.13%, lanthanum and vanadium 0.082%, nickel 0.08%, bismuth 0.21%, lead 0.12%, the rest includes zinc and unavoidable impurities; among them, the mass ratio of lanthanum and vanadium is 1:0.47.
[0084] In this embodiment, the base steel plate is 45 carbon steel plate.
[0085] In this embodiment, the composition of the rare earth alloy hot-dip coating is in mass%, and further contains:
[0086] Ce 0.093%.
[0087] In this embodiment, the composition of the rare earth alloy hot-dip coating is in mass%, and further contains:
[0088] Titanium 0.110%.
[0089] In this embodiment, the production method of the rare earth alloy hot-dip coated steel sheet includes the followin...
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