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Preparation method of corrosion-resistant cerium-containing Zn-Cu-Ti coating

A technology of zn-cu-ti and zn-cu-ti-ce is applied in the field of preparation of corrosion-resistant cerium-containing Zn-Cu-Ti coatings, which can solve the problems of unclear coating morphology and unclear influence.

Active Publication Date: 2022-04-08
JIANGSU CUMT DAZHENG SURFACE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the relevant research work has hardly been carried out, the morphology of hot-dip Zn-Cu-Ti-Ce coatings is not clear, and the effect of Ce content on the properties of Zn-Cu-Ti coatings is also unclear.

Method used

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  • Preparation method of corrosion-resistant cerium-containing Zn-Cu-Ti coating
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  • Preparation method of corrosion-resistant cerium-containing Zn-Cu-Ti coating

Examples

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Embodiment 1

[0024] A method for preparing a corrosion-resistant cerium-containing Zn-Cu-Ti coating, comprising the following steps:

[0025] (1) Select high-quality sponge titanium and pure copper particles as raw materials for a ratio of 1:1, and use a vacuum arc melting furnace with electromagnetic stirring conditions for melting to prepare a Cu-50Ti master alloy.

[0026] (2) Using pure copper particles, pure zinc and pure cerium as raw materials, Zn-10Cu and Zn-3Ce master alloys are prepared by using a resistance furnace, the melting temperature is 650 ° C, the holding time is not less than 5 hours, and several times are stirred during the holding process .

[0027] (3) With pure Zn, Cu-50Ti, Zn-10Cu and Zn-3Ce intermediate alloy as raw materials, utilize resistance furnace to prepare Zn-0.75Cu-0.15Ti-0.1Ce immersion plating solution, first Zn block is melted during smelting, selected The temperature is about 650°C. After the Zn block is completely melted, the master alloy is added a...

Embodiment 2

[0031] A method for preparing a corrosion-resistant cerium-containing Zn-Cu-Ti coating, comprising the following steps:

[0032] (1) Select high-quality sponge titanium and pure copper particles as raw materials for a ratio of 1:1, and use a vacuum arc melting furnace with electromagnetic stirring conditions for melting to prepare a Cu-50Ti master alloy.

[0033] (2) Using pure copper particles, pure zinc and pure cerium as raw materials, Zn-10Cu and Zn-3Ce master alloys are prepared by using a resistance furnace, the melting temperature is 650 ° C, the holding time is not less than 5 hours, and several times are stirred during the holding process .

[0034] (3) With pure Zn, Cu-50Ti, Zn-10Cu and Zn-3Ce intermediate alloy as raw materials, utilize resistance furnace to prepare Zn-0.75Cu-0.15Ti-0.2Ce immersion plating solution, first Zn block is melted during smelting, selected The temperature is about 650°C. After the Zn block is completely melted, the master alloy is added a...

Embodiment 3

[0038] A method for preparing a corrosion-resistant cerium-containing Zn-Cu-Ti coating, comprising the following steps:

[0039] (1) Select high-quality sponge titanium and pure copper particles as raw materials for a ratio of 1:1, and use a vacuum arc melting furnace with electromagnetic stirring conditions for melting to prepare a Cu-50Ti master alloy.

[0040] (2) Using pure copper particles, pure zinc and pure cerium as raw materials, Zn-10Cu and Zn-3Ce master alloys are prepared by using a resistance furnace, the melting temperature is 650 ° C, the holding time is not less than 5 hours, and several times are stirred during the holding process .

[0041](3) With pure Zn, Cu-50Ti, Zn-10Cu and Zn-3Ce intermediate alloy as raw materials, utilize resistance furnace to prepare Zn-0.75Cu-0.15Ti-0.3Ce immersion plating solution, first Zn block is melted during smelting, selected The temperature is about 650°C. After the Zn block is completely melted, the master alloy is added an...

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Abstract

The invention discloses a preparation method of a corrosion-resistant cerium-containing Zn-Cu-Ti coating, which comprises the following steps: (1) selecting high-quality sponge titanium and pure copper particles as raw materials, proportioning according to the ratio of 1: 1, and smelting by using a vacuum electric arc smelting furnace with an electromagnetic stirring condition to prepare a Cu-50Ti intermediate alloy; (2) weighing a pure zinc block and a pure cerium block according to a mass ratio of 50: 1, and smelting by using a common resistance furnace to prepare a zinc-cerium intermediate alloy; and (3) during hot dipping, the component Zn-0. 75Cu-0. 15Ti-Ce is firstly smelted, a Zn block is firstly melted, and the Cu-50Ti intermediate alloy and the zinc-cerium intermediate alloy are put into the molten Zn block. (4) before hot dipping, the Q235 surface is subjected to auxiliary plating treatment; and (5) the hot dipping temperature is set to be 700 DEG C, after dipping is conducted for 20-30 s, the steel plate is taken out, the pulling speed is 1.5 cm / s, and the steel plate is taken out and put into ultrapure water to be cooled. The method has the advantages that on one hand, the corrosion resistance of the hot-dip Zn-Cu-Ti alloy coating is further improved through the Zn-Cu-Ti coating containing Ce; and on the other hand, the problem of optimizing the hot dipping process of the cerium-containing Zn-Cu-Ti coating is determined.

Description

technical field [0001] The invention relates to the technical field of alloys and hot dip coating materials, in particular to a method for preparing a corrosion-resistant cerium-containing Zn-Cu-Ti coating. Background technique [0002] In the actual application process of Q235 steel, it is easy to corrode in high temperature oxidation and strong acidic medium. If the metal matrix is ​​exposed to the marine environment for a long time, it will cause the movement of the surface lattice, resulting in chemical corrosion, resulting in Severe consumption and damage will cause significant waste of materials and serious economic losses. In recent years, with the development of industrial production, new requirements will be put forward for the corrosion resistance of workpieces, and the limitations of traditional materials will be exposed. It is an inevitable trend to develop new hot-dip coating materials. At present, hot-dip plating still uses Zn-Al as the main material, and the ...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C1/03C22C9/00C22C14/00C22C18/00C22C18/02C23C2/02C23C2/06
Inventor 倪雅康壮苏
Owner JIANGSU CUMT DAZHENG SURFACE ENG TECH
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