METAL CLEANER
Why we do cleaning :
Normal every component have the oily layer , without oily layer component get the rust ( oxide layer ). To avoid the rust during manufacturing , component manufacturers apply the oil or grease. When component reach at process floor that time also oil layer will be there. It may be in wet form or dry form . So Before the plating or phosphating or any other metal finishing process , we have to clean the oils, grease, dirt etc from that base component .
Normal every component have the oily layer , without oily layer component get the rust ( oxide layer ). To avoid the rust during manufacturing , component manufacturers apply the oil or grease. When component reach at process floor that time also oil layer will be there. It may be in wet form or dry form . So Before the plating or phosphating or any other metal finishing process , we have to clean the oils, grease, dirt etc from that base component .
To clean the oil or grease from component , there are so many
process like solvent cleaning, alkaline degreasing , acid cleaning etc .
depends on oil layer and finish requirement , but most popular, reliable and
less pollutant process is alkaline immersion degreasing process .
Before making the degreasing chemical bath
for cleaning , we have to choose the right chemistry base on following facts :
Process should be Economical and Operator
friendly.
Degreasing powder should be easly water soluble.
Bath should have Degreasing Efficiency .
Rinsibility.
CLEANING
PROCESS :
When we dip the oiled
component in the degreasing bath , then component will get wet in the bath with
help of surfactants. Oils on surface
will emulsified in the presence of surfactants, who acts as emulsifier After
emulsification process , emulsion of oil will get saponified in the presence of
alkaline chemicals and component will get clean from oil .
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