Anti-static clothing and anti-static wrist strap
Anti-static clothing and wrist straps are an important part of the anti-static system to eliminate the human body, which can eliminate or control the generation of static electricity in the human body, thereby reducing the *main source of static electricity in the manufacturing process.
Anti-static clothing includes anti-static coveralls, anti-static split clothing, anti-static gowns, anti-static shoes, hats, anti-static gloves, anti-static finger cots, anti-static wrist straps, etc. Anti-static clothing is made of anti-static cloth of different colors. The fabric yarn contains a certain proportion of conductive yarn, and the conductive yarn is made of a certain proportion of stainless steel fiber or other conductive fibers mixed with ordinary fibers. Eliminate static electricity on clothing through corona discharge and leakage of conductive fibers. Because stainless steel fiber is a metal fiber, the anti-static fabric woven from it has stable conductivity and does not change with the number of washing clothes.
The anti-static wrist strap is the most important anti-static product when the operator touches the electronic components. Through the grounding path, the static charge of the human body can be safely discharged. It consists of anti-static elastic band, movable snap button, spring cord. It is composed 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.
Anti-static packaging and transportation products, etc.
There are many anti-static packaging products, such as anti-static shielding bags, anti-static packaging bags, anti-static sponges, anti-static IC packaging tubes, anti-static component boxes, anti-static turnover boxes, anti-static bubble films, and anti-static transport vehicles. Most of these packaging products are made of static dissipative materials, and some of them are made of anti-static materials. The purpose is to protect the installed circuit or device and printed circuit from static electricity
Anti-static floor and anti-static table mat
There are also many kinds of anti-static floor and anti-static table mats, which are divided into timeliness, permanent and temporary; according to materials, there are conductive rubber, PVC, conductive ceramics, etc.; according to the laying method, there are direct laying on the ground And raised raised floor. It can be decided according to actual needs and cost. If you need to run a variety of cables and pipes on the ground, such as computer protection, it is better to choose a raised floor laid overhead.
The anti-static table mat is mainly an anti-static composite rubber sheet, which is mainly used for catching and matting desktops, assembly line work surfaces, shelves and making floor mats. The surface layer of the material is divided into grass green, the conductive material is an antistatic agent; the bottom layer is black, and the conductive material is carbon black.
In addition to the above three categories of products, there are other anti-static products, such as anti-static soldering irons, anti-static chairs, anti-static repair kits, etc. Among them, the anti-static soldering iron is very commonly used in post-process and maintenance. The general electric soldering iron needs to be unplugged when soldering static sensitive components, while the anti-static soldering iron uses a DC temperature and pressure power supply. The heating components are mostly made of materials with constant temperature characteristics and small electrostatic capacitance, which can greatly reduce various interference signals . In addition, the soldering iron can also be used for electrostatic grounding, which can further eliminate various signals on the soldering iron tip. Therefore, there is no need to unplug the power plug during welding.