Zirconium iron selection technology

Zirconium iron is an important metal material widely used in aerospace, petrochemical, nuclear industry, and other fields. The technology of selecting zirconium iron is an important link in the purification process of zirconium iron, with the aim of removing impurities and improving the purity of zirconium iron. This article will introduce the operating steps and precautions of selecting zirconium iron technology.

1、 Operation steps of zirconium iron selection technology

1. Preparation of raw materials

The raw material for selecting zirconium iron technology is zirconium iron alloy, which mainly consists of zirconium and iron. Before selecting zirconium iron, it is necessary to pre-treat the zirconium iron alloy to remove surface oxide layers and impurities. The pre-treatment methods include mechanical polishing, acid washing, ultrasonic cleaning, etc.

2. Selection process

The selection process is the core link of zirconium iron selection technology, with the aim of separating impurities from zirconium iron alloys. The selection process can adopt two methods: physical selection and chemical selection.

Physical separation methods include heavy liquid separation, magnetic separation, centrifugal separation, etc. These methods separate impurities from zirconium iron alloys based on their density, magnetism, centrifugal coefficient, and other characteristics.

The chemical separation method utilizes chemical reactions to convert impurities into easily separable substances. For example, impurities such as aluminum and chromium in ferrozirconium alloy can be converted into hydroxide by sodium hydroxide solution, and then separated by filtration, precipitation and other methods.

3. Refining process

After the sorting process, the purity of zirconium iron alloy has been improved, but there are still some impurities. In order to further improve the purity of zirconium iron, a refining process is required. The refining process includes vacuum melting, Electro-slag remelting and other methods, which can further remove impurities in ferrozirconium alloy and improve the purity of ferrozirconium.

2、 Precautions for selecting zirconium iron technology

1. Quality of raw materials

The raw material for selecting zirconium iron technology is zirconium iron alloy, and the quality of the raw material has a significant impact on the effectiveness of selecting zirconium iron. If the raw material contains a large amount of impurities, it will affect the effectiveness of the sorting and refining process. Therefore, before selecting zirconium iron, it is necessary to conduct sufficient testing and analysis of the raw materials to ensure that the quality of the raw materials meets the requirements.

2. Selection criteria

The selection conditions during the selection process have a significant impact on the effectiveness of selecting zirconium iron. For example, the sorting effect of heavy liquid separation is influenced by the density of the heavy liquid, while the sorting effect of magnetic separation is influenced by the magnetic field strength and magnetic impurities. Therefore, in the selection process, it is necessary to choose appropriate selection methods and conditions based on the specific situation.

3. Refining conditions

The refining conditions during the refining process have a significant impact on the purity and crystal structure of zirconium iron. For example, the refining effect of vacuum smelting is affected by vacuum degree and smelting temperature, and the refining effect of Electro-slag remelting is affected by current density and smelting speed. Therefore, it is necessary to choose appropriate refining methods and conditions according to the specific situation during the refining process.

In summary, the selection of zirconium iron technology is an important step in the purification process of zirconium iron, and its effectiveness directly affects the purity and performance of zirconium iron. When selecting zirconium iron technology, it is necessary to pay attention to factors such as raw material quality, selection conditions, and refining conditions to ensure that the effect of selecting zirconium iron meets the expected goals.