CHƢƠNG 4
MỘT SỐ
PHƢƠNG PHÁP ĐÚC
PHẦN 5
ĐÚC LI TÂM
1 PGS.TS. NGUYỄN NGỌC HÀ
Từ khóa
•Centrifugal Casting
•Semi-centrifugal
2 PGS.TS. NGUYỄN NGỌC HÀ
1. MỞ ĐẦU
Được phát minh vào đầu thế kỷ 19
Lúc đầu: chỉ chế tạo chi tiết tròn xoay: ống
gang, phôi séc măng, phôi sơ mi …
Sau này: cũng sử dụng để chế tạo các vật
đúc không tròn xoay (semi-centrifugal)
KL lỏng được rót vào khuôn đang quay
(trục quay thẳng đứng hoặc nằm ngang)
Suốt quá trình rót & đông đặc: khuôn, vật
đúc luôn ở trạng thái quay và chịu tác
dụng của lực li tâm
3 PGS.TS. NGUYỄN NGỌC HÀ
Sơ đồ nguyên lý
4 PGS.TS. NGUYỄN NGỌC HÀ
Sơ đồ nguyên lý
Trục quay ngang Trục quay thẳng đứng
5 PGS.TS. NGUYỄN NGỌC HÀ
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