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The pretreatment of NdFeB Magnets material after ultrasonic cleaning,
After ultrasonic cleaning, the pretreatment of NdFeB Magnets material normally is:
Firstly, Alkaline degreasing - hydroplaning - hydroplaning - Ultrasonic fine drift - dilute nitric acid treatment ( and bleach ) - water rinsing - water rinsing - Ultrasonic fine drift - activation processing – Plating.
Secondly, Alkaline degreasing - water rinsing - water rinsing - Ultrasonic fine drift - dilute nitric acid ( and bleach ) process - water rinsing - water rinsing - Ultrasonic fine drift - activation treatment - water rinsing - water rinsing - ultrasonic the sperm drift – Electroplating.
Thirdly, the ultrasonic alkaline degreasing - water rinsing - water rinsing - ultrasonic fine drift - dilute nitric acid ( and bleach ) treatment - water rinsing - water rinsing - ultrasonic fine drift - activation treatment - water rinsing - water rinsing - ultrasonic fine drift - Plating
from：http://www.htmagnets.com/newsd-nid-103.html-
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