Steel wire hot dipping rare earth zinc alloy and hot dipping method

Abstract

The invention relates to the technical field of metal surface cladding materials, and in particular relates to a steel wire hot dipping rare earth zinc alloy and a hot dipping method. With the method, the hot dipping alloy is adopted to carry out hot dipping on steel wires, and a pulsed magnet field is applied to a hot dipping alloy molten pool in the hot dipping process. The hot dipping alloy comprises the following components in percentage by mass: 0.02-0.06% of rare earth mixture 1 or rare earth mixture 2, 4.0-4.5% of Al, 0.11-0.2% of Ti, 0.05-0.10% of B, 0.01-0.05% of Sr and the balance of Zn and inevitable impurities, wherein the rare earth mixture 1 is composed of at least two of rare earth Ce, La and Pr at the mass ratio of 1:1, and the rare earth mixture 2 is composed of rare earth Ce, La and Pr at the mass ratio of 1:1:1. The parameter range of the pulsed magnet field is that the pulse width is 80-100ms, the action frequency is 1-2Hz, and the peak value intensity of the pulsed magnet field is 11-15T. According to the steel wire hot dipping rare earth zinc alloy, the clapping material quality is improved, and the consumption of rare earth and other metals is saved. The technology applied in the method is simple, and the existing technical equipment is mature, has low cost and is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of metal surface coating, in particular to a steel wire hot-dip rare-earth zinc alloy and a hot-dip coating method. Background technique [0002] Corrosion is an important way of loss of steel materials. The loss of steel materials due to corrosion reaches tens of millions of tons every year. At present, hot-dip anti-corrosion coating on metal surfaces is the most effective way to improve metal corrosion resistance and reduce metal corrosion consumption; For steel materials for different purposes, due to the difference in use environment, material structure and performance, the currently used hot-dip metal coating materials mainly include: Zn series, rare earth Zn series, Zn-Al series, Al series, rare earth Al series However, for steel wire, hot-dip galvanizing and hot-dip rare-earth zinc-plating are still the main methods at present; hot-dip galvanizing adopts the traditional process, which has problems suc...

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Problems solved by technology

[0005] The purpose of the present invention is: to invent a multi-element alloy for hot-dip rare earth zinc plating on steel wire, and to apply a pulsed magnetic field to the melt in the hot-dip plating process, so as to solve the problem of existing steel wire hot-dip rare earth zinc plating. The large consumption of rare earths leads to high cost, poor wettability of hot dipped metal, uneven coating, and mismatch of alloying elements in the coating, resulting in poor corrosion resistance, low strength, rough surface and other quality problems of the coating

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