PU nylon coated glovesDetailed explanation and static elimination method
Static electricity is a common charging phenomenon in life, especially in the dry and cold winter. You can hear the crackling or sparking sound of static electricity when combing your hair or taking off your coat or sweater. In industry, this static electricity is not completely useless, but the premise is that it is necessary to use high-voltage static electricity generated by external energy to work. It is not exactly the same as the harmful static electricity generated in the production process described below. The following is the generation of static electricity, the harm of static electricity and the measures to eliminate static electricity.
1. Generation of static electricity
Matter is composed of atoms, and atoms are composed of protons, neutrons and electrons. Protons are positively charged, neutrons are uncharged, and electrons are negatively charged. The number of protons and electrons in an atom is the same, and the positive and negative charges are balanced, so the external appearance is that there is no charge. Due to external effects such as friction or various forms of energy, the positive and negative charges of atoms will be unbalanced, which will lead to the generation of static electricity.
2. Hazards of static electricity
1. Fire or explosion
Fire and explosion are the biggest hazards of static electricity. Sometimes, although the amount of static electricity is not large, it is easy to discharge due to the high voltage, generating static electricity sparks and causing explosions. For example, in oil shipping sites, chemical sites, etc., static electricity sparks may cause fires or explosions. If there are explosive dusts or explosive gases or steam, static electricity sparks may cause explosions.
2. Hindering production
Generally speaking, the generation of static electricity will greatly reduce the quality of the product. In the display industry, the generation of static electricity will cause dust particles to be adsorbed on the screen surface, reducing the quality. In the printing industry, static paper lines are uneven and cannot be separated, affecting the printing speed and printing quality. In the film industry, static sparks make the film sensitive to light, reducing the quality of the film. Electronics industry: adsorbing dust, causing pollution of integrated circuits and semiconductor components, greatly reducing the yield rate. Many industrial manufacturing industries are generally subject to interference caused by static electricity!
The harm caused by electrostatic discharge (ESD):
(1) Cause failure or malfunction of electronic equipment, resulting in electromagnetic interference.
（2） Break down integrated circuits and precision electronic components, or cause component aging, reducing production yield.
（3） High-voltage electrostatic discharge causes electric shock, endangering personal safety.
(4) Production sites with many flammable and explosive materials or dust and oil mist are very likely to cause explosions and fires.
3. Electric shock caused by static electricity
Electric shock caused by static electricity usually occurs when the human body is close to statically charged materials, or when a statically charged human body is close to a grounded object. At this time, the static electricity carried by the human body can be as high as one million volts. The severity of static electricity shock is related to the energy stored in the static electricity. The greater the energy, the heavier the electric shock. The larger the capacitance of the static object or the higher the voltage, the more severe the electric shock.
3. Anti-static measures and methods of static elimination
1. Grounding method
Grounding is the simplest method of eliminating static electricity. Grounding is mainly used to eliminate static electricity on conductors, but not suitable for eliminating static electricity on insulators. If there is static electricity on the insulator, directly grounding the insulator will easily cause spark discharge.
2. Leakage method
Taking measures to increase humidity and use antistatic additives to promote the self-dissipation of static electricity from the insulator is the so-called leakage method.
3. Neutralization method
;Microsoft YaHei'; font-size: 12px;">Neutralization is an important measure to eliminate the hazards of static electricity. The neutralization method is to try to produce charged ions in places where static electricity is densely charged, and neutralize the static electricity in that place. The neutralization method can be used to eliminate static electricity on insulators. Induction neutralizers, high-voltage neutralizers, radiation neutralizers and other devices can be used to eliminate the hazards of static electricity.
4. The most direct method of eliminating static electricity
12px;">The widely used static elimination equipment series in the market include: ion blower, ion air gun, ion air rod, ion air nozzle, ion air snake, etc., which are widely used in: precision electronic product production; electronic assembly line, microelectronics production, optoelectronics, liquid crystal display, pharmaceutical manufacturing assembly line, printing, packaging; small product molding, plastic film shearing, circle and lamination, and mold product demoulding, etc.
