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US 6,333,075 B1Granted
Method of forming a film on strip material and apparatus thereof
AssigneeBridgestone Corporation
InventorAtsushi Ichikawa
Life of this patent
Estimating the term…
Abstract
A simple and inexpensive method of forming a film on a wire or strip material by immersing it in a solution bath containing a film-treating component, and then draining liquid off, and an apparatus thereof are disclosed. The time from taking out the material from the solution bath to completing liquid draining is not less than 4 times the immersion time in the solution bath to thereby improve drawability.
Claims11
A method for forming a film on a steel strip or steel wire material comprising steps of;
- immersing the material in a solution bath containing borax as a film-forming component, taking the material out of the solution bath and draining the solution adhering on the material taken out of the solution bath, wherein the time from taking the material out of the solution bath to completion of draining is not less than 4 times the immersion time in the solution bath.
Dependencies are inferred from the claim text.