Clean room engineering in electronic factory dust-free workshop
Detailed introduction:
The construction of electronic engineering is to provide a reliable environment for the production of electronic products, production environment and the production of electronic products is closely related to the appropriate production environment, improve product performance, yield and reliability, otherwise it will cause a greater impact on production.
Clean room air laminar flow clean room which features?
It has the following characteristics: all suspended particles are kept in laminar flow
1. The air moves in a laminar manner, so that all suspended particles move in the laminar flow layer, which can prevent the suspension particles from forming into large particles
2, air velocity relative progress, so that the particles floating in the air, without the accumulation of settling down, together with the indoor air will not block, can prevent the cross contamination of drug powder; laminar air has entered into the room through efficient filter filtration, reach new indoor sterile needs;
The pollutants can quickly be removed by laminar air and discharged outdoors;
Another kind of F, that is, the activity of indoor air is turbulent. The clean room with general air conditioning system, the indoor air activity belongs to non laminar flow (Wen Liu), can not only make the suspended particles in the air mixed quickly, but also make the indoor particles stop from head to air, some empty
Gas can also block the situation.
What are the matters needing attention in planning electronic dust-free workshop?
1, purification equipment engineering, according to the actual situation to choose the appropriate purification equipment.
2, the ground engineering, mainly to consider the question: whether or not to take anti-static function.
3, color steel plate project, what materials need to be used, including color steel plate moisture and fire protection function.
4, central air conditioning engineering, including constant temperature, warm and humidity function.
5, the wind pipe project, need to consider the elements of the wind pipe pressure and air supply.
Clean room cleaning equipment selection what are the tricks?
Fan filter unit and efficient air supply outlet are the best terminal equipment in clean room of clean workshop. What are the tricks to choose them?
1, humidity, the humidity is required by some occupation is serious, such as electronic, print, and solid food and so on other occupation, one is static, in general, the humidity is low, the electrostatic is stronger, the clean room cleaning equipment must consider this question.
2, the purification level of specific needs, in general, the higher the level, the need for flow direction will be higher, if the selection of fan filter unit and air conditioner, must will directly affect the cleanliness.
3, the temperature needs, fan filter unit with fan, can separate air supply, so not continuous central air conditioning duct can work, so the temperature needs is not very high, you can choose fan filter unit, also can choose efficient air outlet.
What materials and what features do they choose for clean shop planning?
1, dust-free workshop is adopted what methods can reduce the amount of dust?
A, selection of raw materials: cotton dust is the largest, followed by cotton, dacron, polyester and nylon to electrostatic.
B, style: the largest amount of dust hanging, the top and bottom sub type, the minimum cover type;
C, workshop activities: the amount of dust production is usually 3-7 times the stop time;
D and cleaning: the amount of dust produced by solvent washing is reduced to 1/5 of that of ordinary water.
2, good moisture retention, high strength, heat insulation, thermal conductivity of core material: lambda <=0.041w/mk. High strength: can be used for smallpox fender planning, plate bearing, bending resistance, compression, general clean room compared with less beam column.
3, the construction is convenient, light weight: 10-14 kg / m2, equivalent to 1/30 brick walls, roof, the purification plant usually use 50mm thick splint; and color plate equipment flexible and convenient: the construction period is short, the workshop can be produced according to the need to be adjusted using the color steel plate wall, workshop construction more convenient.
4, air filter equipment: efficient air outlet selection of stainless steel structure, beautiful clean, punching mesh with baking aluminum plate, not rust, non stick dust, easy to clean; send and return air pipe made of heat transfer zinc plate, paste insulation cotton insulation;
5, efficient filter equipment, it is necessary to clean room cleaning, wipe out all the clean air conditioning system, such as internal dust, cleaning, wipe again, reach the cleaning needs. In the technical mezzanine or ceiling equipment high efficiency filter, the technical layer or ceiling should also be all clean, clean.
Electronic dust-free workshop solution
LED/ liquid crystal / circuit board manufacturing is a highly sophisticated industry, some subtle environmental or operational changes may affect the quality of finished products, so the manufacturing process requires strict control in the clean room operation. A clean room is a closed space that uses layers of filtration to remove particles in the air and to control the temperature and humidity in the room.
LED/ liquid crystal / circuit board chip is prepared to the device packaging, the production environment air quality has higher requirements, air quality is related to the yield and product quality; in many process links, which process is the key to prevent pollution? Cleanliness is up to standard. Why is there still pollution on the product? The same process and environmental parameters, why do we consume more energy than others? What kind of clean room planning and design scheme is the most energy-efficient, most in line with the requirements of the process, investment, low operating costs, high production efficiency?
Through in-depth study of LED/ LCD / PCB customer production environment and engineering experience, we clearly understand the key to the environmental control of its production process; energy saving is the priority of our system program priority;