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Aluminum-rich series zinc-based plating layer material capable of reducing brittleness caused by liquid metal in hot forming process and preparation method thereof

A liquid metal, hot forming technology, applied in the direction of metal material coating process, hot dip plating process, coating, etc., can solve the problems of brittle fracture of steel plate matrix, affect the quality of steel forming, and cannot be effectively overcome, and improve fluidity. , The effect of improving surface quality and reducing the viscosity of plating solution

Pending Publication Date: 2021-12-31
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still unable to effectively overcome the contact between the molten liquid zinc affected by the high temperature and the steel plate matrix, which will cause brittle fracture of the steel plate matrix during hot forming, which will affect the forming quality of the steel and limit its application.

Method used

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  • Aluminum-rich series zinc-based plating layer material capable of reducing brittleness caused by liquid metal in hot forming process and preparation method thereof
  • Aluminum-rich series zinc-based plating layer material capable of reducing brittleness caused by liquid metal in hot forming process and preparation method thereof
  • Aluminum-rich series zinc-based plating layer material capable of reducing brittleness caused by liquid metal in hot forming process and preparation method thereof

Examples

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Effect test

Embodiment 1

[0062] In this embodiment, an aluminum-rich zinc-based coating material that reduces embrittlement of liquid metal during hot forming is a Zn-Al-Mg alloy with the following composition and weight percentage: Al: 0.2%; Mg: 1.0%; Zn: 98.8wt.%, and the balance is unavoidable impurities.

[0063] A method for preparing an aluminum-rich zinc-based coating material that reduces the embrittlement of liquid metal during hot forming in this embodiment includes the following steps:

[0064] a. Preparation process of hot-plating solution:

[0065] According to the following elemental compositions and weight percentages required for the preparation of aluminum-rich zinc-based coating materials, the prepared raw materials are weighed: the content of Al is 0.2wt.%, the content of Mg is 1.0wt.%, and the balance is Zn and unavoidable Impurities include Zn blocks, Al blocks and Mg blocks, and then the following preparation process steps are used to prepare aluminum-rich zinc-based coating mat...

Embodiment 2

[0111] This embodiment is basically the same as Embodiment 1, especially in that:

[0112] In this embodiment, an aluminum-rich zinc-based coating material that reduces embrittlement of liquid metal during hot forming is a Zn-Al-Mg alloy with the following composition and weight percentage: Al: 3.5%; Mg: 1.8%; the balance is Zn and unavoidable impurities.

[0113] A method for preparing an aluminum-rich zinc-based coating material that reduces the embrittlement of liquid metal during hot forming in this embodiment includes the following steps:

[0114] a. Preparation process of hot-plating solution:

[0115] According to the following elemental compositions and weight percentages required for the preparation of aluminum-rich zinc-based coating materials, the prepared raw materials are weighed: the content of Al is 3.5wt.%, the content of Mg is 1.8wt.%, and the balance is Zn and unavoidable Impurities include Zn blocks, Al blocks and Mg blocks, and then the following preparat...

Embodiment 3

[0161] This embodiment is basically the same as the previous embodiment, and the special features are:

[0162] In this embodiment, an aluminum-rich zinc-based coating material that reduces embrittlement of liquid metal during hot forming is a Zn-Al-Mg alloy with the following composition and weight percentage: Al: 0.2%; Mg: 1.0%; Zn: 98.8wt.%, the balance is unavoidable impurities.

[0163] A method for preparing an aluminum-rich zinc-based coating material that reduces the embrittlement of liquid metal during hot forming in this embodiment includes the following steps:

[0164] a. Preparation process of hot-plating solution:

[0165] According to the following elemental compositions and weight percentages required for the preparation of aluminum-rich zinc-based coating materials, the prepared raw materials are weighed: the content of Al is 0.2wt.%, the content of Mg is 1.0wt.%, and the balance is Zn and unavoidable Impurities include Zn blocks, Al blocks and Mg blocks, and...

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Abstract

The invention discloses an aluminum-rich series zinc-based plating layer material capable of reducing brittleness caused by liquid metal in a hot forming process and a preparation method thereof. A Zn-Al-Mg alloy plating layer is prepared by mainly adjusting the content of Al and Mg in a plating solution and controlling the content proportion of the Al to the Mg, and the Zn-Al-Mg alloy plating layer comprises the following components including, by mass, 0.2%-5% of Al, less than or equal to 2.5% of Mg, 0-2% of Si, 0-1% of Ti, 0-3% of RE and the balance Zn and some inevitable impurities, wherein the RE is at least one element of La and Ce. According to the method, plating layer materials with different element contents are prepared for a 22MnB5 steel plate; and through a plating layer preparation-hot dipping experiment, austenitizing treatment, plating layer and steel plate structure observation and steel plate hot tensile experiment detection, the material has the performance of inhibiting liquid metal embrittlement and high corrosion resistance, the problem of embrittlement caused by the liquid metal in the hot stamping forming process of the high-strength steel plate plated with the aluminum-rich zinc-based plating layer is solved, the corrosion resistance of the plating layer is achieved, and the oxidation problem of the plating solution in the hot dipping process is solved.

Description

technical field [0001] The invention relates to a coating material and a preparation method thereof, in particular to a coating material which suppresses liquid metal embrittlement occurring in the hot stamping forming process of a high-strength steel plate, and a preparation method thereof, as well as improving the corrosion resistance of the coating and hot dipping Anti-oxidation of the plating solution during the plating process. Background technique [0002] In the traditional cold forming process, high-strength steel sheets are prone to problems such as poor shape, high processing load, and large springback, which greatly limit the use of high-strength steel. [0003] Based on this, a new type of thermoforming technology is gradually developed. The emergence of thermoforming technology solves the problem of poor shape, high processing and forming load, and large springback during cold processing of ultra-high-strength plates. Moreover, under thermoforming conditions, t...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22C18/00C22C1/03C23C2/02C23C2/06C23C2/26C23C2/40
CPCC22C18/04C22C18/00C23C2/06C23C2/02C23C2/26C22C1/03C23C2/40
Inventor 吴广新丁成发马征张捷宇
Owner SHANGHAI UNIV
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