配方类型: |
METALS AND THEIR TREATMENT |
配方说明: |
Metal Cleaning Prior to Powder Coating |
配制方法: |
Prior to powder coating the parts pass through a three stage spray washer and phosphatizing machine. Soil is removed in the first stage with a 1-min phosphoric acid spray at 150'F, followed by an ambient temperature water rinse for 1/2 min, then a chromic acid rinse at 160'F for 1/2 min. Moisture is removed in a 4-min. pass through a dry-off oven at 350'F. Cooling time is 8 to 10 min. |
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