A study of flux using to aluminium melting
スポンサーリンク
概要
- 論文の詳細を見る
The authors investigate the flux used for the treatment of molten aluminium for the purpose of determing whether the crast smelting fused salt which is a by-product from titanium Kroll process can be used or not for aluminium flux. And we are determined useful ranges of this fused salts. To these fused salts are added various compounds of chloride and fluoride for comparison. Effective degree of flux is measured by the fluidity length of molten aluminium in horizontal straight line mould after treatment. The results are as follows:1) In basic binary system containing each elements of MgCl2, NaCl, and KCl, MgCl2(60)-KCl(40), MgCl2(60)-NaCl(40) and NaCl(80)-KCl(20) are effective moreover in binary system containing CaF2 in place of MgCl2, CaF2(60-80)-KCl(20-40), CaF2(20)-NaCl(80) are effective.2) In ternary system of MgCl2, KCl, NaCl, effective compositions are divided into 3 groups as follow. A group is MgCl2(10-20), KCl(60-80), NaCl(10-20). B group is MgCl2(10-50), KCl(40-50), NaCl(10-50). C group is MgCl2(40-80), KCl(10-20), NaCl(10-50). In the above 3 groups, the best effective group is B. C group is most stable, having low melting point and the range of composition is wide.3) In ternary system of CaF2, KCl, and NaCl, CaF2 which is used in place of MgCl2 is effective, quite contrary to the inefficient MgCl2. Therefore any compound of MgCl2 will become effective by adding a certain amount of CaF2.4) In A(MgCl2 60-KCl 20-NaCl 20)+CaF2 and A+NaF systems, effective compositions are A(80)+CaF2(20) and A(90)+NaF(10).In A+CaF2+NaF system, a mixture of 60%A, 20% CaF2 and 20% NaF is effective. More addition of NaBF4 to the system of A is also effective, the amount of NaBF4 being 0.5% of the molten mass by weight.5) The most effective flux for Al is a mixture of A(60%)-CaF2(20%)-NaF(10%)-Na3AlF6(10%) with NaBF4 added, the amount of the mixture being 5% and that of NaBF4 0.5% of the molten mass by weight.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
- Mechanical and wear properties of SiC whisker/ADC12 aluminum alloy composites fabricated by die casting.
- Joining of aluminum and ceramics.
- タイトル無し
- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.