Manufacturing method of columnar crystal Al-Ni-Co-Ti permanent magnetic alloy

A technology of AlNiCoTi and permanent magnet alloys, which is applied in the field of manufacturing technology of columnar crystal AlNiCoTi permanent magnet alloys, can solve problems such as difficult machining, unsatisfactory magnetic properties, high brittleness and hardness of products, and reduce breakage Effects of edge drop, improvement of machinability, and improvement of anisotropy

Inactive Publication Date: 2013-08-07
SHENZHEN YINGZU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technical solution involves adjusting certain elements within specific ranges for optimal compositions based on their effectiveness at reducing impurity levels or increasing strength. Additionally, introducing other materials like vanadiums into this mixture helps reduce cracks caused when castings occur due to poor coolability. Finally, controlling the ratio of silicon dioxygen to nitrogen allows for better control over particle size distribution without causing excessive wear upon machine tools.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding ways to make stable rare earth iron boron martensite permanent ferrite without adding too many elements or requiring expensive facilities during fabrication processes such as casting techniques.

Method used

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  • Manufacturing method of columnar crystal Al-Ni-Co-Ti permanent magnetic alloy
  • Manufacturing method of columnar crystal Al-Ni-Co-Ti permanent magnetic alloy
  • Manufacturing method of columnar crystal Al-Ni-Co-Ti permanent magnetic alloy

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Embodiment 1

[0032] Ingredients: ingredients by weight percentage as follows: aluminum A1: 7%, nickel Ni: 15%, cobalt Co: 38%, copper Cu: 3%, titanium Ti: 5.5%, niobium Nb: 0.6%, holmium Ho: 0.5%, Tantalum Ta: 0.3%, Bismuth Bi: 0.3%, Sulfur S: 0.2%, Selenium Se: 0.2%, and the balance is iron and unavoidable trace impurities in materials; in order to reduce the melting point of metal tantalum, ensure that tantalum and When the weight percentage of niobium in the ingredients remains unchanged, it is added in the form of tantalum-niobium alloy, in which the weight percentage of tantalum is 60% and the weight percentage of niobium is 40%.

[0033] Taking the smelting of 100 kg AlNiCoTi permanent magnet alloy as an example, the distribution ratio of each component is shown in Table 1-1:

[0034] Each component distribution ratio in the embodiment one of table 1-1

[0035]

[0036] The niobium in the raw material adopts niobium powder, the tantalum-niobium alloy adopts flakes with a thicknes...

Embodiment 2

[0053] Ingredients: ingredients in the following weight percentages: aluminum Al: 7.5%, nickel Ni: 14.5%, cobalt Co: 36%, copper Cu: 3.2%, titanium Ti: 6%, niobium Nb: 1%, holmium Ho: 0.8%, Tantalum Ta: 0.6%, Bismuth Bi: 0.3%, Sulfur S: 0.4%, Selenium Se: 0.4%, and the balance is iron and unavoidable trace impurities in materials; in order to reduce the melting point of metal tantalum, ensure that tantalum and When the weight percentage of niobium in the ingredients remains unchanged, it is added in the form of tantalum-niobium alloy, in which the weight percentage of tantalum is 60% and the weight percentage of niobium is 40%.

[0054] Taking the smelting of 100 kg AlNiCoTi permanent magnet alloy as an example, the distribution ratio of each component is shown in Table 2-1:

[0055] Each component distribution ratio in the embodiment two of table 2-1

[0056]

[0057] The niobium in the raw material adopts niobium powder, the tantalum-niobium alloy adopts flakes with a th...

Embodiment 3

[0073] Ingredients: ingredients in the following weight percentages: aluminum A1: 7.8%, nickel Ni: 14.5%, cobalt Co: 37.5%, copper Cu: 3.3%, titanium Ti: 6.5%, niobium Nb: 1%, holmium Ho: 1.3%, Tantalum Ta: 0.9%, Bismuth Bi: 0.5%, Sulfur S: 0.5%, Selenium Se: 0.4%, and the balance is iron and unavoidable trace impurities in materials; When the weight percentage of niobium in the ingredients remains unchanged, it is added in the form of tantalum-niobium alloy, in which the weight percentage of tantalum is 60% and the weight percentage of niobium is 40%.

[0074] Taking the smelting of 100 kg AlNiCoTi permanent magnet alloy as an example, the distribution ratio of each component is shown in Table 3-1:

[0075] The distribution ratio of each component in the third embodiment of table 3-1

[0076]

[0077] The niobium in the raw material adopts niobium powder, the tantalum-niobium alloy adopts flakes with a thickness less than 1 mm, and other metal materials are in the form of...

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Abstract

The invention discloses a manufacturing method of a columnar crystal Al-Ni-Co-Ti permanent magnetic alloy. The manufacturing method comprises the following steps of 1, blending 7 to 8wt% of Al, 13.5 to 15wt% of Ni, 36 to 38wt% of Co, 3 to 3.5wt% of Cu, 5.5 to 7wt% of Ti, 0.5 to 1wt% of Nb, 0.5 to 1.5wt% of Ho, 0.3 to 0.9wt% of Ta, 0.3 to 0.6wt% of Bi, 0.15 to 0.5wt% of S, 0.2 to 0.6wt% of Se and the balance Fe, 2, carrying out melting and pouring, and 3, carrying out heat treatment. The columnar crystal Al-Ni-Co-Ti permanent magnetic alloy obtained by the manufacturing method has excellent magnetic properties, small brittleness and good machining properties.

Description

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Claims

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Application Information

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Owner SHENZHEN YINGZU TECH CO LTD
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