Straight steel monofilament for a belt ply
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United States of America Patent
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Jul 27, 2021
Grant Date -
Oct 18, 2018
app pub date -
Apr 11, 2018
filing date -
Jul 29, 2013
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Abstract
A method for manufacturing a straight steel monofilament for the reinforcement of belt ply of a pneumatic tyre, where the arc-height of the straight steel monofilament is less than 30 mm. The steel monofilament is plastically deformed by a twisting along the axis of the steel monofilament on a double-twist apparatus. The plastic twist deformation eliminates the surface stress difference on the steel monofilament and provides a strainght steel monofilament for belt ply reinforcement. This provides a simple solution with existing apparatus to manufacture straight steel monofilament suitable for tire reinforcement with high speed for mass production.
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