Research in Premium-Quality Castings in Light Alloys.

摘要

Extensive research on the structure and properties of cast aluminum and magnesium alloys ha% been applied to foundry practice. The term 'premium quality' is used to describe castings with reliably high mechanical properties and high integrity of the product, guaranteed by the foundry. In production, conventional equipment and manufacturing techniques may be used, but rigid control of metal purity, alloy composition, melt quality, solidification conditions and heat treatment is essential to achieve and maintain high reliability of properties in designated areas of the casting, which are graded according to design and service considerations. Examples of the excellent properties that have been obtained in aluminum and magnesium alloy castings are listed.