The principle of static electricity and some basic knowledge of anti-static
Anti-static work clothes are to prevent human body static electricity, static surface accumulation, anti-electricity, to prevent human body static electricity from damaging components, anti-static wrist strap and anti-static shoes are necessary, anti-static cap is also very important, hair is easy to discharge. In fact, it is so complicated. Anti-static clothing is made of materials that do not generate static electricity when the body moves and rubs. To strengthen the anti-static effect, you need to buy some anti-static products from an anti-static company, which are also insulating materials, so they cannot dissipate electricity, but can only prevent static electricity and isolate static electricity. In the case of electricity elimination, workers in the electronics industry will wear an electrostatic ring through it to introduce static electricity to the ground.
First determine a few concepts.
First, static electricity is a kind of electric charge in a static state.
Second, the electrostatic field is an electric field excited by a static charge (relative to the static charge of the observer).
Third, electrostatic discharge is the transfer of electrostatic charges between two objects with different electrostatic potentials due to direct contact or electrostatic field induction. After the energy of the electrostatic electric field reaches a certain level, the phenomenon of breaking down the medium and discharging is electrostatic discharge. Fourth, electrostatic sensitivity refers to the electrostatic discharge voltage that the components can withstand.
Fifth, electrostatic sensitive devices refer to devices that are sensitive to electrostatic discharge.
Sixth, grounding refers to an electrical connection to an object that can supply or receive a large amount of electrical charge.
Seventh, neutralization refers to the use of opposite charges to make static electricity disappear.
Eighth, the anti-static work area refers to a work site that is equipped with various anti-static equipment and equipment, can limit the electrostatic potential, has clear regional boundaries and special marks, and is suitable for electrostatic protection operations.
Secondly, we need to understand how static electricity is generated.
Static electricity can be generated by friction: In daily life, any two objects of different materials are contacted and then separated to generate static electricity. The most common way to generate static electricity is to generate electricity by friction. The better the insulation of the material, the easier it is to generate electricity by friction. In addition, any two objects with different substances can generate static electricity after they come into contact with each other. It can also be generated by induction: For conductive materials, because electrons can flow freely on its surface, such as placing them in an electric field, Because the same sex repels and the opposite sex attracts, the positive and negative electrons will be transferred; it can also be conducted through conduction: for conductive materials, because electrons can flow freely on its surface, such as contact with a charged object, charge transfer will occur.
So how to prevent static electricity? This is an urgent problem before us.
In fact, there are many ways. For example, grounding, electrostatic shielding, ion neutralization, and a series of anti-static products. Here I specially emphasize that the anti-static shoes introduced by our company use the most advanced science and technology, and the anti-static effect is better than similar products.