What is Al Sc alloy? What is the production development of aluminum scandium alloy? Today, the aluminum scandium alloy manufacturer will explain the production and development history of aluminum scandium alloy
Since 1970, with the continuous efforts of scandium experts in China, we have created our own unique Al SC production method and device, which has promoted the production and development of Al SC. At present, China has mastered the methods of producing A1 SC alloy, such as blending method (mixed melting method), molten salt electrolysis method and metal (m or Mg) thermal reduction method. The variety, quality and output of Al SC alloy can meet the requirements of products applied in various fields. The following is a brief introduction to the raw and auxiliary materials of the three major methods, namely, mixing method, molten salt electrolysis method and metal magnesium aluminum thermal reduction method.
(1) The raw and auxiliary materials of the blending method are high-purity metal scandium (Sc) ≥ 9.9%, and blunt aluminum (A1) t>9.9%. Use pure argon (Ar) ≥ 9.99%) as the protective gas.
(2) When the raw and auxiliary materials of molten salt electrolysis method use fluoride salt electrolyte (SCF3-LiF3-Sc: 0, system), use Sc 203 t>99% as raw material, and use LiF3I_- 99% and ScF3 t>99% are auxiliary materials. Molten aluminum (A1) is used as raw material, argon is used as protective gas (auxiliary material) in electrolysis, and graphite anode material is consumed. When using chloride electrolyte (SeC l. - KCl - NaCl, etc.), Se Cl3 ≥ 99% is the raw material, KCI and Na Cl are both i>99%, ArI>99.99% graphite anode, etc. are the auxiliary materials. Melt aluminum (A 1) as raw material.
(3) Sc for raw and auxiliary materials of magnesium aluminum thermal reduction method: 03 I_- 99% is made of anhydrous SeCl3 I>99% as raw material. It is melted with Na Cl and K CI to form molten salt (S c Cl, - KCl - Na Cl), with NaCl and K Cl as auxiliary materials, molten aluminum as alloy raw material, and magnesium (Mg) as reducing agent. A r ≥ 9.99% is protective gas. Anhydrous Sc Cl was prepared using NH. C 1 Prevent Sc Cl and generate S cOC l. The above Sc: 0, ScF, SeCI, etc. are produced domestically with sufficient supply. Other auxiliary materials (KC I, Na Cl, Ar gas, etc.) can be purchased domestically.
Aluminum alloy is an important engineering material for national economic construction and national security. However, so far, the key technologies for the preparation of some high-performance aluminum alloys in China have not broken through. Many high-performance aluminum alloy materials required by key models still rely on imports. There is still much work to be done in the research and development of high-performance aluminum alloys.
