Common causes of wrist strap failure
Anti-static wrist straps are divided into corded wrist straps, cordless wrist straps and smart anti-static wrist straps. They are divided into single-loop wrist straps and dual-loop wrist straps according to their structure. It consists of an elastic band, a snap button, and a spring cord. It consists of protective resistor and plug or chuck. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn.
The customer is an electronics factory that produces electronic sensor chips for automotive engines, and the wrist straps it ordered cannot pass the test of the human body comprehensive tester. On-site inspection by our engineering and technical personnel revealed that the problem was due to the defect of the anti-static yarn on the inner layer of the wristband, which did not play a conductive role. The only thing that really worked was the metal part of the movable button. The reasons are as follows: First, at present, many products in the domestic anti-static market are of poor quality. In addition, after using a wristband of poor quality for a period of time, the continuous bending of the wristband wire will eventually cause the metal fibers in the wire to break. The wrist strap's anti-static function has failed. The wrist straps of foreign big brands have undergone strict bending tests for hanging heavy objects, and the product process, quality and process are strictly monitored to ensure that the products can meet the prescribed bending times and have a service life of 1-2 years. There are also some high-quality products with almost no damage caused by normal wear and tear, providing customers with a lifetime quality assurance.