Expendable molds , which typically are made of sand, plaster, ceramics, and similar materials and generally are mixed with various binders(bonding agents) for improved properties. These materials are refractories (that is, they are capable of with standing the high temperatures of molten metals). After the casting has solidified, the mold is broken up to remove the casting.

Sand castingSand casting, the oldest casting process, consists of

( ) is a defective surface of casting.（以下哪项属于铸件表面缺陷）

Important considerations of casting

Which process involves dipping a seed crystal into a molten silicon liquid and pulling it upwards at a specific rotational speed? A: Multicrystalline ingot casting B: Float-zone pulling C: Czochralski casting D: Silicon wire casting

Four indexs of casting property

Centrifugal casting is suitable to produce ( ).

casting process basically involves

Which process involves dipping a seed crystal into a molten silicon <br/>liquid and pulling it upwards at a specific rotational speed? A: Multicrystalline ingot casting B: Float-zone pulling C: Czochralski casting D: Silicon wire casting

General characteristics of plaster-mold casting contain