Abstract
A newly developed lubrication film coating steel of polyester 40-colloidal silica 30-ethylene tetrafluoride 6 ( Parts by weights) has excellent forming ( Lublication ) property and scratch resistance. The coating steel has excellent continuous forming, too. Furthermore, excellent corrosion resistance after forming and paint adhesion are maintained, too. When fine-grained colloidal silica of 8 nm under is used, excellent scratch resistance of film yields as a result of rising of film intensity. The excellent lubrication of film and scratch resistance at high temperature is maintained by ethylene tetrafluoride. Corrosion resistance of the lublication film coating steel yields as a result of film formation of polyester, fairly rising of film intensity due to fine-grained colloidal silica and scratch resistance due to lubrication of ethylene tetrafluoride. Excellent paint adhesion of the lubrication film yields as a result of maintenance of excellent paint adhesion of polyester resin at wide temperature.
