The concentration of fine particles floating clean room, the use of high-performance filter can be easily reached zero level, the actual production site due to the operator, the machine, when dust surrounding machinery and parts in contact with the substrate transport material dust, etc., manufactures peripheral raised a little fine particles, resulting in a clean surface of the particle pollution elements.

  Methods cleanroom fine particles of pollution prevention, what does? Veronika purification technology to recommend should comply with the following four basic principles:

Cleanroom prevention precautions a fine particle pollution is not brought into the

  In the clean room is not brought into fine particles methods are:
  1) Before entering the clean room operator, machine, brought in former parts should be cleaned;
  2) into the clean room in the locker room who does not want to wear dust, does not produce static electricity with a special conductive fiber material clean clothes, hats, shoes, gloves, masks and so on.
  3) After removing attached to the garment surface of the particles can enter the cleanroom air shower room high speed by using a clean air.
  4) Before machinery and materials into the clean room, clean room should as far as possible into the front room in a sealed condition with ultrapure water after cleaning and maintenance, the wind leaching room air shower before entering the clean room.
  5) clean room to be closed throughout the wearer to wear helmets and be accompanied by a small exhaust fan filters at the waist.

Cleanroom Particulate Contamination Prevention
Cleanroom Particulate Contamination Prevention considerations Second, do not manufacture

  In the biggest sources of pollution control - people microparticles amount of dust in the clean room at the same time, it should also controls the second largest source of pollution - dust quantity manufacturing machine. Because when you move objects, friction and contact with the resulting dust can cause peeling, and there will be fine particles occurs when goods moving. Therefore, in order to control the amount of dust to reach the minimum purification company Wuxi a net small advice should take the following measures:
  1) reducing exposure to dust peeling action patterns;
  2) small abrasion dust material;
  3) small dust oil;
  4) Pneumatic floating machine application of the principle of non-contact.

Cleanroom Particulate Contamination Prevention considerations Third, do not reserve

  If fully implemented, "not to bring in" technology, the cleanliness of the clean room can be maintained. But frequent access to real people and goods in and manufacturing machine brakes, the majority of the clean room must be completely cleanliness is impossible. Therefore, "no reserve" technology quickly apply the filter to remove fine particles has occurred becomes very important. Microparticles generally have occurred will be based on the gravity and electrostatic adsorption force to stay in the surrounding surface. Sudden vibration and unstable air will once again raised these cumulative particles in the air, increasing the risk of major pollution particulates.
  At the highest levels of clean room from the ceiling to the floor, completely remove the fine particles in the air must speed 0.3-0.4m / s of vertically downward flow. It is within about 10 seconds to complete indoor air and filtered air is completely exchanged the calculated value. Meanwhile, the flow of air must have a precise control of the job. In particular to ensure unimpeded airflow passage, because there are obstacles in the flow path, it is easy to produce air to form an air vortex air retention area, so close to the fine particles that have occurred can not be quickly ruled out while drifting in the clean room for a long time, and It will be attached to the surface of the peripheral part of the machinery and equipment caused by pollution.
  Control air flow prevents accumulation of fine particles, but the particles can not be charged surface to prevent accumulation. The concentration of fine particles floating clean room, the use of high-performance filter can be easily reached zero level, the actual production site due to the operator, the machine, when dust surrounding machinery and parts in contact with the substrate transport material dust, etc., manufactures peripheral raised a little fine particles, resulting in a clean surface of the particle pollution elements.

Cleanroom Particulate Contamination Prevention considerations Fourth, exclude / remove


  Unable to avoid the occurrence of a large number of fine particles in the machine station, in order to keep the clean room to produce fine particles, and therefore do direct action of external exhaust gas, the so-called local exhaust. Countermeasures against exhaust as follows: As to import the same amount of outside air is necessary, but will be accompanied by a lot of energy consumption. So we can not say that is absolutely ideal response. So as much as possible while the compression displacement, not only to clean the exhaust outdoors, and should be used to remove air particles after the return flow clean room of countermeasures.

These are the four major considerations Shandong Ed purification summary cleanroom prevent fine particles of pollution.