化學(xué)配方數(shù)據(jù)庫(kù)
| 配方類型： |
METALS AND THEIR TREATMENT |
| 配方說(shuō)明： |
Alkaline Cleaners
Soak or electrolytic |
| 配方組成： |
Sodium hydroxide/2 oz/gal*
Operating Conditions: Bath temperature 180-212F Immersion time
3-10 min. Clean until no water break occurs in rinse.
Comments** For average type soil removal and prior to chemical
treatment and electroplating. In electrolytic cleaning, parts are
cathodic; current density 10-50 amp/ft^2 and 6 volts dc. Use steel
tanks, maintain pH above 11.0.
**Anodic cleaning not recommended; undesirable oxide and hydroxide
surface films will form, and surfa |
| 配制方法： |
Operating Conditions: Bath temperature 180-212F Immersion time 3-10 min. Clean until no water break occurs in rinse.
Comments** For average type soil removal and prior to chemical treatment and electroplating. In electrolytic cleaning, parts are cathodic; current density 10-50 amp/ft^2 and 6 volts dc. Use steel tanks, maintain pH above 11.0.
**Anodic cleaning not recommended; undesirable oxide and hydroxide surface films will form, and surface pitting may occur from prolonged cleaning.
*Cleaners containing more than 2% sodium hydroxide (NaOH) will attack ZK60A, ZK60B and some magnesium-lithium alloys with a resultant decrease in dimensions. |
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