配方类型:

METALS AND THEIR TREATMENT

配方说明:

Foundry Sand Core and Mold (U.S. Patent 2,765,507)

配方组成:

Kerosene/0.25-0.75
Water-Soluble Polyacrylic Acid/0.3-1
High Grade Foundry Sand/To make 100
Moisture/2.5-5

配制方法:

Mold and air-oven dry at 200 to 350'F. for 10 to 30 minutes. This gives a high hot strength core or mold.