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Method for manufacturing refined high cleanliness Al-Ti-B alloy

A technology with high cleanliness and manufacturing method, which is applied in the field of manufacturing technology of aluminum-titanium-boron alloy materials, can solve the problems that cannot meet the requirements of aluminum alloy material refinement treatment, etc., and achieve the goal of reducing impurities, improving cleanliness, and high cleanliness Effect

Active Publication Date: 2012-07-04
HUNAN JINLIANXING SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can not meet the growing and continuous innovation of high-precision, high-quality aluminum alloy material refinement requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Manufacturing of high-clean aluminum titanium boron wire (AlTi5B1)

[0018] The aluminum titanium boron refiner with 5% titanium and 1% boron is one of the most widely used refining materials for deformed aluminum alloys, especially aluminum alloy profiles, plates, and strips.

[0019] Add 1050kg99.7% aluminum ingot to the intermediate frequency induction aluminum to melt, and heat to 720°C, under the action of intermediate frequency electromagnetic force (frequency 1000 Hz), add 230kg of potassium fluorotitanate with a purity of 98% and 120kg of fluoroboric acid with a purity of 98% The potassium mixture is placed on the surface of the aluminum melt and the temperature of the aluminum liquid is maintained. Continue the medium frequency electromagnetic stirring and heat preservation for 30 minutes. After the reaction is complete and the sampling composition is qualified (titanium content 4.5-5.5%, boron content 0.8-1.2%), pour out the reaction by-products floatin...

Embodiment 2

[0020] Example 2: Manufacturing of high clean aluminum titanium boron alloy AlTi5B0.2

[0021] The aluminum-titanium-boron refining agent with 5% titanium and 0.2% boron is a widely used material for aluminum alloy profiles, especially for aluminum alloy profiles that use part of the recycled material as raw materials.

[0022] Add 1050kg99.7% aluminum ingot to the intermediate frequency induction aluminum to melt, and heat it to 700-740°C. Under the action of intermediate frequency electromagnetic force (frequency 1000 Hz), add 230kg of potassium fluorotitanate with a purity of 98% and 25kg of potassium fluorotitanate with a purity of 98%. The potassium fluoroborate mixture is placed on the surface of the aluminum melt and the temperature of the aluminum liquid is maintained. Continue the medium frequency electromagnetic stirring and heat preservation for 30 minutes. After the reaction is completed and the sampling composition is qualified (titanium content 4.5-5.5%, boron conten...

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Abstract

The invention relates to a method for manufacturing a refined high cleanliness Al-Ti-B alloy, comprising the following steps of: (1) melting an aluminum ingot, and adding potassium fluotitanate and potassium fluoborate for alloying; (2) pouring a reaction by-product floating on the surface of aluminum liquid, and neutralizing with alumina powder; (3) raising the temperature of the aluminum liquid, and scattering an alumina powder layer; (4) introducing argon or nitrogen with a pipe so that a residue solution coated in the aluminum liquid floats and is neutralized; (5) measuring the hydrogen content after the solution is treated by utilizing a small bubble rotation and degassing refining technology; (6) scattering a special high temperature anti-oxidation covering agent layer in the hot state of more than 800 DEG C; (7) raising the temperature of the aluminum liquid, introducing the aluminum liquid to a filtering box body filled with an alumina ceramic filter, and carrying out online filtering treatment on the alloy aluminum liquid; and (8) finally, reducing the temperature of the aluminum liquid, discarding scruff scum, and molding by casting to produce Al-Ti-B filaments. The method can effectively separate fluoride salt and other impurities in the Al-Ti-B alloy liquid so that the impurities in an Al-Ti-B alloy refining agent are reduced, and the cleanliness is greatly improved.

Description

technical field [0001] The invention relates to a manufacturing process of an aluminum-titanium-boron alloy material, in particular to a manufacturing method of a high-cleanness aluminum-titanium-boron alloy refiner. Background technique [0002] The development of grain refiners for aluminum alloys can be roughly divided into the following stages: in the 1940s, salt melts containing Ti, B, Zr, Nb, etc. were used as refiners; in the 1950s, salts containing Ti, B Elemental salt block agent; in the 1960s, AlTi alloy ingot (containing Ti5%, 6%, 10%) was used as a commonly used refiner; in the 1970s, AlTiB wire (AlTi5%B1%) was developed, which contains titanium, The refiner of boron element has a very strong refinement effect compared with the refiner of titanium element alone (AlTi); from the 1980s to the present, aluminum titanium boron wire has different composition contents (such as AlTi5% B1%, AlTi3%B1%, AlTi5%B0.2%, etc.). At present, the use of aluminum titanium boron r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C21/00
Inventor 陈建春陈勇刚李云龙文勇
Owner HUNAN JINLIANXING SPECIAL MATERIALS CO LTD