Electrostatic hazard

Mar 11, 2019 Leave a message

The generation of static electricity is unavoidable in industrial production, and the damage caused mainly can be attributed to the following two mechanisms:


One: the harm caused by electrostatic discharge (ESD):


(1) Causes malfunction or malfunction of the electronic device, causing electromagnetic interference.


(2) Breaking through integrated circuits and precision electronic components, or aging components to reduce production yield.


(3) High-voltage electrostatic discharge causes electric shock and endangers personal safety.


(4) Explosions and fires are likely to occur in production sites where multiple flammable or explosive materials or dust or oil mist are produced.


Second, the harm caused by electrostatic attraction (ESA):


(1) Electronics industry: Adsorption of dust, causing contamination of integrated circuits and semiconductor components, greatly reducing the yield.


(2) Film and plastic industry: film or film is not wound up; film, CD plastic disk is contaminated with dust, affecting quality.


(3) Paper-making printing industry: paper winding is not uniform, overprinting is not allowed, serious suction, and even paper bonding, affecting production.


(4) Textile industry: causing damage to the roots, broken flowers, broken yarns, etc.


The harm of static electricity is obvious to all. Now more and more manufacturers have begun to implement various levels of anti-static measures and engineering. However, it should be recognized that perfect and effective anti-static engineering should be based on the actual situation of different enterprises and different operating objects, and develop corresponding countermeasures. Anti-static measures should be systematic and comprehensive. Otherwise, it may be half the effort and even cause destructive reaction.


Hazard


Static electricity has many hazards, and its first hazard comes from the interaction of charged bodies. When the aircraft body is rubbed against air, moisture, dust and other particles, the aircraft will be charged. If no measures are taken, it will seriously interfere with the normal operation of the aircraft radio equipment, making the aircraft into scorpions and scorpions; in the printing house, paper sheets The static electricity between them causes the sheets to stick together, making it difficult to separate, causing trouble for printing; in a pharmaceutical factory. Due to the electrostatic attraction of dust, the drug will not reach the standard purity; the static electricity on the surface of the screen will easily absorb dust and oil when the TV is placed, forming a film of dust, which will reduce the clarity and brightness of the image; The dust that is common and not easy to shoot is also the ghost of static electricity. The second major hazard of static electricity is the possibility of explosions caused by static sparks igniting certain flammable objects. In the dark night, when people take off nylon and woolen clothes, they will emit sparks and "beep" sounds, which are basically harmless to the human body. However, on the operating table, the electric spark will cause an explosion of the anesthetic, harming the doctor and the patient; in the coal mine, it will cause gas explosion, which will cause the worker to die and the mine will be scrapped. In short, the electrostatic hazard is caused by the use of electricity and static sparks, the most serious electrostatic discharge in the electrostatic hazard caused by the ignition and explosion of combustibles. It is often said that prevention measures to prevent static electricity are generally to reduce the flow rate and flow rate, to reform the process of generating electricity, and to use equipment materials with less electricity. The easiest and most reliable way is to ground the device with wires so that the charge can be attracted to the ground and avoid static buildup. Attentive passengers will probably find out; there are discharge brushes on both sides of the wing and the tail of the aircraft. When the aircraft is landing, in order to prevent passengers from being shocked when flying, most of the aircraft landing gears use special ground tires or grounding wires; To release the static charge generated by the aircraft in the air. We also often see a chain at the end of the tanker, which is the ground wire of the car. Appropriately increase the humidity of the working environment, let the charge release at any time, can also effectively eliminate static electricity. It is not easy to do an electrostatic test in wet weather. This is the reason. Antistatic agents researched by researchers can eliminate static electricity inside the insulator. However, everything has two sides. For the hidden trapster of static electricity. As long as you understand its temper, strengths and avoid weaknesses, it can also make it serve humanity. For example, electrostatic printing, electrostatic spraying, electrostatic flocking, electrostatic precipitator and Hong Kong power sorting technology have been widely used in industrial production and life. Static electricity has also begun to play a role in desalinating seawater, spraying pesticides, artificial rainfall, low-temperature freezing, etc., and even electrostatic devices such as electrostatic feeders are installed on the spacecraft.


The accumulation of static electricity is inevitable. When the static electricity is severe, it will burn people's skin. When the electromagnetic waves and harmful rays of various electrical appliances are excessive, they will interfere with the human endocrine system. With the improvement of people's living and the awareness of environmental protection, the application range of anti-static metal cloth is also expanding. Anti-static metal cloth clothing such as professional wear, tooling and protective clothing is popular, anti-static metal cloth is also popular. Therefore, it has become a star product in the fabric market. The latest market dynamics show that at present, anti-static cloths in many developed countries have been used in the field of home textile products, such as bed covers, paving, and mats, all of which are equipped with anti-static metal cloth. The demand is huge and the order is constant. However, manufacturers must have three conditions. First, the product must meet the importer's target requirements. Second, post-processing must pass. Third, weaving on a wide loom. At present, orders in Japan and Europe are mostly. The domestic northern market also has a certain sales volume. There is no doubt that the market prospects for anti-static metal cloth are very broad.