PROBLEM TO BE SOLVED: To solve the problems in which: solidification of molten metal in an upper inside of a sprue member is time-consuming in casting using a conventional sprue member.SOLUTION: A casting sprue member that is a sprue member 15 to fill molten metal M into a cavity 9C of a mold 9 in a low pressure casting comprises: a sprue part 15A forming a space in which an upper end part is blocked and a lower end part is opened; and a gate part 15B which is formed at a position lower than the cavity. Heat insulation property of the sprue part 15A and the gate 15B is higher than that of the mold 9 so that mold release of a cast product is possible before the molten metal M is solidified in the sprue member 15 to shorten a casting cycle time and improve yielding percentage of the material.
【課題】従来の湯口部材を用いた鋳造では、湯口部材の上側内部の溶湯が凝固するまでに時間がかかるという問題点があった。【解決手段】低圧鋳造において金型9のキャビティ9Cに溶湯Mを充填するための湯口部材15であって、上端部を閉塞し且つ下端部を開放させた空間を形成する湯口部15Aと、キャビティよりも低い位置に形成されたゲート部15Bとを有し、湯口部15A及びゲート部15Bが、金型9の断熱性よりも高い断熱性を有する材料で形成してある構成とし、湯口部材15内の溶湯Mが凝固するのを待つことなく鋳造製品の離型を可能にし、鋳造のサイクルタイムの短縮化や材料の歩留まりの向上を実現する。【選択図】図2
CASTING SPRUE MEMBER AND LOW PRESSURE CASTING APPARATUS USING THE SAME
鋳造用湯口部材及びこれを用いた低圧鋳造装置
2015-11-19
Patent
Electronic Resource
Japanese
Engineering Index Backfile | 1930
Tropical sprue—studies of the U. S. Army's sprue team in Puerto Rico
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