Thickness Test of Tire Film and Steel Cord Fabric with Terahertz Technology

Abstract

Uneven thickness is a familiar quality problem appear in the production process of tire semi- finished extrusion parts, which affect the performance and the lifetime of the tire, so the quality testing of thickness is very necessary. This test established a terahertz detection method with time domain approach. A static test for tire film and wire cord fabric thickness was made with the equipment of API T-Ray 5000 (USA). Time, index and thickness is obtained according to the reflection waves from different reflecting surface. The results show that using terahertz technology can detect tire wire cord fabric thickness, its accuracy and stability meet the requirements.