鑄造用亞鉛合金に關する研究(第4報) : 亞鉛及びその合金の流動性について

概要

論文の詳細を見る
A new apparatus for measuring the running quality of molten metals and alloys has been designed by the authors. This apparatus consists of three parts ; a metallic mould having a straight measuring canal about 150 cm long whose cross section is an inverted trapezoid, a metallic mould of a cylindrical type which acts as a reservoir for the molten metal, and a metallic mould acting as a part connecting metallic mould reservoir and the measuring canal. After filling the metallic mould reservoir with the molten charge, a stopper is removed and the charge is poured into the test mould. By using this apparatus, the running quality of pure zinc and zinc alloys, which contain aluminium, copper, magnesium, is studied. The results obtained are as follows : (1) the running quality of zinc alloys decreases considerably by an addition of aluminium above 4%, (2) the running quality, also, decreases remarkably by an addition of a small amount of magnesium, (3) the running quality is improved by the higher pouring and mould temperature, in spite of magnesium content, (4) remelting is undesirable for the running quality, (5) the running quality in zinc-aluminium-copper ternary alloys containing aluminum up to 5% decreases by an addition of copper, but in the alloys of 7% aluminum increases by increasing copper content. (Received September 10, 1951)
宇宙航空研究開発機構の論文
1951-11-30