鋳造用生型砂のパラメータ設計

抄録

Green　sand　casting　is　an　old　process　which　uses　green　sand　to　produce　molds.　Today,　about　a half　of　casted　products　are　still　produced　from　this　process　because　of　low　cost,　easy　sand reuse　and　the　ability　to　cast　large　shape　products.　Such　a　tendency　will　probably　be　continuing for　a　while. However,　this　casting　method　is　not　easily　controlled　during　production,　because　the　sand adhesion　force　in　the　mixing　process　Varies,　also　the　force　changes　over　time. The　green　sand　adhesion　force　decline　is　the　major　reason　of　mold　breaking　and　other　defects. In　this　study,　quality　engineering　approach　was　utilized　to　find　the　optimum　condition　to produce　the　green　sand　with　a　strong　adhesion　force　and　small　adhesion　force　changes　over time.