Rare earth alloy hot-dip coating steel plate and production method thereof

A technology of rare earth alloy and production method, which is applied in hot-dip plating process, metal material coating process, coating, etc., which can solve the problems of poor overall performance such as appearance and strength, low bonding strength between coating and substrate, general corrosion resistance, etc. problems, to achieve the effect of flat and smooth coating surface, meet the requirements of heavy anti-corrosion, and high tensile bonding strength

CN110777316AActive Publication Date: 2020-02-11JINJIANG ANNENG BUILDING MATERIALS MFG

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: JINJIANG ANNENG BUILDING MATERIALS MFG
Publication Date: 2020-02-11

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Abstract

The invention discloses a rare earth alloy hot-dip coating steel plate and a production method thereof. The rare earth alloy hot-dip coating steel plate comprises 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 rare earth alloy hot-dip coating comprises, by mass, 0.1-0.8% of magnesium, 0.05- 0.15% of aluminum, 0.002-0.090% of lanthanum and vanadium, 0.03-0.09% of nickel, 0.01-0.25% of bismuth, 0.05-0.13% of lead and the balance zinc and inevitable impurities; and the ratio of the mass of the lanthanum and the vanadium is 1: (0.42-0.48). According to the rare earth alloy hot-dip coating steel plate, the tensile bonding strength of the rare earth alloy hot-dip coating and the base steel plate is high; in the case of the same thickness of the coating, compared with a traditional pure zinc coating, the corrosion resistance of the rare earth alloy hot-dip coating steel plate is greatly improved to 175% or above; and the obtained coating surface is quite smooth.

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Description

technical field

[0001] The invention relates to the field of steel plate coating and steel plate production methods, in particular to a rare earth alloy hot-dip coated steel plate and a production method thereof. Background technique

[0002] Metal parts of any type made of ferrous materials, more particularly parts made of steel, generally have applications requiring them to receive effective corrosion protection. In this regard, it is known practice to protect steel-based components from corrosion by galvanizing (galvanizing). In galvanizing, steel has a generally thin coating of zinc to protect the steel from corrosion. There are various galvanizing methods for galvanizing parts made of steel, in other words coating them with a metallic covering of zinc, including notably hot dip galvanizing, zinc metal spraying (zinc wire flame spraying), diffusion galvanizing (galvanizing), electrogalvanizing (electrolytic galvanizing), electroless galvanizing by means of zinc flake c...

Claims

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