| 配方类型： |
DETERGENTS |
| 配方说明： |
Aluminum cleaner |
| 配制方法： |
Walnut hulls were found to be the best abrasive for cleaning aluminum surfaces prior to painting. Samples blasted with walnut hulls showed no compressive stress of the surface. Samples blasted with abrasives such as silicon carbide, silica sand, or garnet showed average compressive stresses of 23.6-33.1 ksi (163X10^6 to 228X10^6 N/m^2).
Walnut-hull blasting resulted in the least amount of warpage and gave the smoothest surface.
The quality of the repainted surfaces was very similar to a first-time painted surface. When purchased in quantity, walnut hulls were the least expensive abrasive. |
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