The role of anti-static clothing and anti-static wrist strap in the electronics industry
Anti-static clothing and anti-static wrist strap are an important part of the anti-static system to eliminate the human body, which can eliminate or control the generation of human static electricity, thereby reducing the static electricity generated in the manufacturing process.
The role of anti-static clothing workshop
The body protection products in the electronic processing workshop include anti-static jumpsuits, anti-static split suits, anti-static coats, anti-static shoes, caps, anti-static gloves, anti-static finger covers, and anti-static wrist straps. Anti-static overalls are made of different colors of anti-static cloth. The fabric yarn contains a certain proportion of conductive yarn, which is blended with a certain proportion of stainless steel fibers or other conductive fibers and ordinary fibers. The static electricity on the clothing is eliminated through the corona discharge and leakage of conductive fibers. Since stainless steel fiber is a metal fiber, the antistatic fabric woven from it has a stable electrical conductivity, but it does not change with the number of times the garment is washed.
The role of electrostatic wrist strap in the workshop
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 carried by the human body can be safely discharged. It consists of anti-static elastic bands, movable snaps, spring cords, protective resistors and plugs or chucks. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn.
Anti-static wrist straps are divided into corded wrist straps, cordless wrist straps and intelligent anti-static wrist straps. They are divided into single-loop wrist straps and dual-loop wrist straps according to the structure. It is used to discharge the static electricity of the human body. It consists of elastic bands, movable snaps, spring cords, protective resistors and plugs or chucks. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. Anti-static wrist straps are also called anti-static bracelets and bracelets.
Details of anti-static wrist strap The role of dust-free clothing and anti-static wrist strap in the workshop
1. Wireless electrostatic wristband: It is based on the physical principle of (static voltage balance). According to the principle of "static engineering", static electricity is developed by the principle of pushing between the ions. The characteristic of pushing from the high potential pushes the electrostatic ions of the human body to the drought body design (collection area), and the [equivalent amount of opposite charge]-skin effect will be carried on the front and back surfaces of the conductive plate through [charge induction principle], Because the ion exchanger <utilize its low free energy characteristics> is built in, it can easily provide the same amount of heterogeneous charge of the introduced electrostatic ions for neutralization, so it can achieve the effect of electrostatic discharge, and there is a screw on the outside of the machine. , Connected to the internal conductor loop.
(1) It can be used as a result of improper personnel touching the high static power supply, causing a large amount of static charge to be introduced instantly. When the ion neutralization is not completed, the ion neutralization can be provided by the external air water molecules with the screw (it is for the Corona discharge effect). To effectively eliminate static electricity, and achieve the ultimate goal of electrostatic discharge (static voltage balance).
(2) This screw can be used for the potential zeroing function (just touch the screw to ground).
(3) Can be used as a loop detection terminal.
2. Wired wrist strap: It is the most basic antistatic equipment and the most commonly used product on the production line. It is not only very convenient in erection and operation, but also the most economical in terms of price. The strap and the ground wire discharge the static electricity on the human body to the ground. Therefore, the wrist strap must be in direct contact with the skin during use. The ground wire must also be directly grounded, and the ground wire must be unobstructed for maximum effectiveness.
Anti-static wrist strap electrostatic ring is a device that is worn on the wrist of the human body and discharges the accumulated electrostatic charge of the human body. It is divided into wired and wireless types, and has a mixed ring of metal rings and elastic conductive wires. This product belongs to the anti-static wrist strap closure adjustment cable type, which can effectively protect the zero resistance parts from the interference of static electricity and discharge the static electricity of the human body. It is composed of anti-static elastic band, movable snap button, spring cord, protective resistance and chuck. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. The principle of the anti-static wired wrist strap is to conduct the static electricity of the human body to the ground through the wrist strap and the grounding wire. When using the wristband, contact the skin and ensure that the grounding wire is directly grounded, so that it can maximize its effectiveness. Wearing this anti-static wrist strap, it can safely remove the static electricity generated in the human body within 0.1 seconds. The grounded wrist strap is the most basic and most commonly used anti-static equipment.
The above are the differences and functions of anti-static clothes, dust-free clothes and anti-static wrist straps introduced to you.