Understanding ion fans is useful for eliminating static electricity
Ion blowers can generate a large number of positive and negative charges, which can neutralize the charges on objects. When the surface of the object is negatively charged, it will attract the positive charge in the airflow. When the surface of the object is positively charged, it will attract the negative charge in the airflow, thereby neutralizing the static electricity on the surface of the object and eliminating it. The purpose of static electricity. It has played an inestimable role in the harm caused by static electricity in industrial production, but at the same time, the ion fan has two sides. We must take its strengths and avoid its weaknesses. I will briefly summarize the use of ion fans for everyone.
The advantage of the ion fan's static elimination performance is the high speed of static elimination. The static elimination speed refers to the time of the neutral ESD, that is, the time required to reduce the voltage from 1KV (or 5KV) to 100V (or 500V). 4.5S; the residual voltage refers to the residual charge after neutralizing ESD. There is a difference between positive and negative charges, generally around ± 15V. The ion balance refers to the equivalent amount of positive and negative charges. It determines the amount of residual voltage in the region. How much. Everyone knows this, but if you want to make it perform well, you must reduce the accompanying risks.
I. The ionizing eliminator discharge needle with strong electric field ionization is the component that is most susceptible to aging and damage. Therefore, it is necessary to regularly clean and maintain it with an anti-static dust-free cloth to protect the performance of the equipment from being damaged.
Second, the static elimination speed is also the dissipation rate, which is an indicator for static elimination consideration. Generally, the dissipation rate of 1000V-100V is measured by CPM. For example, the DC corona products dissipate static electricity very quickly.
Third, the high-voltage transformer is the core of the ion fan. Its quality determines the degree of ion balance: the ion imbalance will bring objects in the area to the surface turtle, so it must be controlled. Ion imbalance only occurs in ionizing equipment with corona ionization;
4. The working distance considers two factors: 1. The closer the distance is, the faster the static elimination speed is; 2. The effective distance of different types of ion static eliminators is different;
5. Different types of ionization equipment are suitable for different objects. For example, horizontal ion fans are suitable for large / medium / small range precision electronic product production; microelectronics production, optoelectronics, pharmaceutical manufacturing assembly lines, printing, packaging; small products Molding, circles and laminations, and release of mold products.