摘要
论述了大型Al-Si活塞的低压铸造工艺，包括铝液的浇注温度、模具温度、模具的冷却与涂料以及活塞的浇注工艺。以缸径为300mm的活塞为例，在浇注温度为640℃、充型压力为0．025MPa、充型速度为0．4m／s、结晶压力为0．22～0．25MPa、结晶时间为13-14min的工艺条件下，其生产效率和产品品质均达到批量生产的要求。
The pouring temperature, mould temperature, mould cooling and coating as well as pouring process of large Al-Si alloy piston in low pressure casting were described. The production efficiency and quality of Al-Si alloy with 300 mm in diameters can meet the production-volume requirements with pouring at 640 ℃ and filling at 0.025 MPa and 0.4 m/s as well as holding pressure at 0.22~0.25 MPa for 13~14 min.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2008年第7期527-528,共2页
Special Casting & Nonferrous Alloys
关键词
大型Al—Si活塞
低压铸造
温度
浇注工艺
Large Al-Si Piston, Low Pressure Casting, Temperature, Pouring Process
