Method for preparing Zn-Cu-Ti alloy cast ingot, alloy cast ingot and alloy plate

A zn-cu-ti, alloy ingot technology, applied in the field of alloy plates, can solve the problems of not being able to prepare high-quality plates, difficult to control alloy components, and high melting temperature, achieve uniform chemical composition and improve melt shape. Nucleation rate, effect of reducing melting temperature

Pending Publication Date: 2021-07-16
CENT INT GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the object of the present invention is to solve the problems of existing Zn-Cu-Ti alloys such as high smelting temperature, low efficiency, many impurities, heavy

Method used

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  • Method for preparing Zn-Cu-Ti alloy cast ingot, alloy cast ingot and alloy plate
  • Method for preparing Zn-Cu-Ti alloy cast ingot, alloy cast ingot and alloy plate
  • Method for preparing Zn-Cu-Ti alloy cast ingot, alloy cast ingot and alloy plate

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preparation example Construction

[0044] The invention provides a kind of preparation method of Zn-Cu-Ti alloy ingot, comprises the following steps:

[0045] S1. Preheating and drying alloy raw materials and rare earth materials at 50-300° C. for 2-30 minutes; the alloy raw materials include Zn, master alloys containing Ti and / or Cu elements;

[0046] S2. Put Zn into the melting furnace, raise the temperature to 420-500°C until it is completely melted, then add intermediate alloys and rare earth materials containing Cu and / or Ti elements to the Zn melt, and raise the temperature of the melting furnace to 450-650 ℃, and evenly spread the covering agent on the surface of the melt;

[0047] S3. At the same time as the above S2, apply high-energy ultrasound to the melt to accelerate the diffusion and dissolution rate of Ti, Cu and RE elements. After all are dissolved / melted, reduce the temperature of the melting furnace to the liquidus temperature of the Zn-Cu-Ti alloy Above 20-100℃;

[0048] S4. Adding refining...

Embodiment 1

[0067] This embodiment provides a method for preparing Zn-Cu-Ti alloy ingots with high efficiency and low temperature in conjunction with rare earth modification and ultrasonic treatment, including the following steps:

[0068] S1. Preheating and drying alloy raw materials and rare earth materials at 150° C. for 10 minutes; the alloy raw materials include Zn, an intermediate alloy containing Ti and / or Cu elements;

[0069] The alloy raw materials include pure Zn, an intermediate alloy containing Ti and / or Cu elements. In terms of the mass percentage of each element, the proportion of each element is: Cu 0.1%, Ti 0.1%, and the rest is Zn. Pure Zn ( Purity ≥ 99.995%), Zn-5Cu and Zn-5Ti master alloy for batching, the total weight is 120kg, the selected rare earth type is Zn-10Y master alloy, and the mass fraction of rare earth Y is 0.15% of the total mass of Zn-Cu-Ti alloy;

[0070] S2. Put Zn into the melting furnace, raise the temperature to 450°C until it is completely melted,...

Embodiment 2

[0075] This embodiment provides a method for preparing Zn-Cu-Ti alloy ingots with high efficiency and low temperature in conjunction with rare earth modification and ultrasonic treatment, including the following steps:

[0076] S1. Preheating and drying alloy raw materials and rare earth materials at 200°C for 5 minutes; the alloy raw materials include Zn, an intermediate alloy containing Ti and / or Cu elements;

[0077] The alloy raw materials include pure Zn, an intermediate alloy containing Ti and / or Cu elements. In terms of the mass percentage of each element, the proportion of each element is: Cu 0.8%, Ti 0.1%, and the rest is Zn. Pure Zn ( Purity ≥ 99.995%), Zn-16Cu-2Ti master alloy for batching, the total weight is 200kg, the selected rare earth type is Zn-5Er and Zn-5Ce mixed master alloy, and the mass fractions of rare earth Er and Ce are 0.1% and 0.05% respectively %;

[0078] S2. Put Zn into the melting furnace, raise the temperature to 420°C until it is completely ...

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Abstract

The invention provides a method for preparing a Zn-Cu-Ti alloy cast ingot, the alloy cast ingot and an alloy plate. That is, in the smelting process of the Zn-Cu-Ti alloy, rare earth modification and high-energy ultrasonic synergistic treatment are utilized to promote an intermediate alloy containing Ti and Cu elements to be efficiently melted/dissolved at a low temperature, meanwhile, the high-quality Zn-Cu-Ti alloy is prepared by virtue of the effects of removing gas and impurities, improving the melt nucleation rate, inhibiting grain growth and the like, and a Zn-Cu-Ti alloy plate is produced by adopting multi-pass rolling. Compared with an existing Zn-Cu-Ti alloy casting process, according to the method, the low-temperature diffusion and dissolution speed of Ti and Cu atoms is increased, the smelting temperature is reduced, the burnout rate of Ti and Zn elements is reduced, and meanwhile Zn-Cu-Ti alloy solute homogenization, melt purification and structure refinement are promoted; and the high-quality plate which finally meets the European EN988 standard and is high in surface quality, high in mechanical performance and high in corrosion resistance is prepared, and the method is stable in process, high in controllability and good in application prospect.

Description

technical field [0001] The invention relates to the technical field of zinc alloy preparation and smelting, in particular to a material method for preparing a Zn-Cu-Ti alloy ingot at low temperature with high efficiency, the prepared alloy ingot, and an alloy plate prepared from the alloy ingot. Background technique [0002] Zn-Cu-Ti alloy occupies an important position in zinc-based alloy processing materials. It has excellent comprehensive performance, such as its processing performance, forming performance, welding performance, corrosion resistance, and embossing performance, and its color is durable. The alloy has good creep resistance comparable to brass. Due to the excellent properties mentioned above, Zn-Cu-Ti alloys have been widely used in construction and decoration industries in foreign countries, especially in some developed countries in Western Europe, such as roof panels, wall panels, and drainage channels in the 1970s. . Some fruitful researches have been d...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C1/06C22C18/00C22C18/02
CPCC22C1/03C22C1/06C22C18/00C22C18/02
Inventor 李静媛祁明凡刘爱森陈俊臣郝冰付东亮谢莉
Owner CENT INT GROUP
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