| 配方类型： |
METALS AND THEIR TREATMENT |
| 配方说明： |
Foundry-Core Mix (For Aluminum) |
| 配方组成： |
Water/20-30
"Resimene" 970/7
Sand (90-130 A.F.S.)/1000
(Distilled oleic acid (red oil).
Release Agent*/4
Cereal Flour/6 |
| 配制方法： |
In aluminum core work, the weakest possible core, consistent with core-handling requirements, is desirable. Often a much "Weaker" mix than this is used and the cores are sprayed with water before being placed in the baking oven. This produces a core with a strong skin and maximum collapsability. |
|
