铝合金超声铸造；超声波电源；频率控制；功率控制。
Aluminum ultrasound casting; ultrasound power; frequency tracking; power control.
采用对所研制的粘结剂进行超声波振荡及混砂时加入有机高聚物yppj对铝镁硼复合磷酸盐铸造粘结剂热硬砂进行改性。
The heat cured sand of Al-Mg-B compound phosphate inorganic binder was modified by ultrasonic oscillation to binder and adding organic polymer YPPJ while mixing of sand.
分析了汽轮机厚断面球铁件轴承座的设计特点、铸造技术和超声波探伤。
The design characteristics, foundry technology and ultrasonic test method of heavy section ductile iron bearings for steam turbines was described and analyzed.
分析了汽轮机厚断面球铁件轴承座的设计特点、铸造技术和超声波探伤。
The design characteristics, foundry technology and ultrasonic test method of heavy section ductile iron bearings for steam turbines was described and analyzed.
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