摘要:Low pressure die casting with wide-range speed regulating device has been used for making C/A1 composite. Investigations are focased. on its infiltration process, solidified microstructure and feeding property.
摘要:This paper reaches into the comprehensive treating additives for Al-Si alloys, discusses the kinetic mechnism of the dissolving of the particulates of alloying-elements. The testing results show that the process of modification, alloying and refinement canend up in 30 munites to ensure Al-Si alloys to be treated comprehensively and meet the technical requirements.
Piston Rods for Truck Air CompressorsLuo Jixiang Cheng Bingguang Liu Linhai
Issue 5, Pages: 8-12(1992)
摘要:This paper describes the extensive experiments and research works on extrusion casting aluminium piston rods for truck air compressors, including the choice of parameters of extrusion casting technology and mould structure;the selection of aluminium alloys for the rods and the test for their properties; the experiment both in test equipments and practical truck operation with the roads; and the approaching of on optimal production plan.
摘要:To add some raw banxite in to sodium silicate coating slunny contained processed banxite can improve the mechanical properties of shell mould at high temperature, reduce the remained strengh and improve the collapsibility. It is recommendable that the ratio of raw banxite to processed banxite may be 2/83/7.
Huang Liangyu Ye Qing Zhai Chunquan Ding Wengjiang
Issue 5, Pages: 15-17(1992)
摘要:High damping, high strength Mg-matrix damping alloy ZMJD--1S was developed with orthogonal test method. The optimal composition is: Zr0.6% , Mn 0.15% , Zn 0.17% , Nd0.06% , Mg remaining. The typical properties are; S. D. C. =48% , ab= 165MPa, =10.5%. Vibration test indicates that some apparatus pedestals made of theis material has a better damping capacity than that made of ZL104 alloy.