The air in the clean room and clean room needs to be filtered by three sets of filter materials: coarse, medium and high efficiency to meet the requirements. Different components filter different dust particle size. The finer the particle size, the more difficult it is. The high efficiency air filter is mainly used to capture particles, dust and various suspended solids below 0.5um. Use ultra-fine glass fiber paper as the filter material, offset paper, aluminum film and other materials as the partition board, glued with the wooden frame aluminum alloy. Each unit has been tested by the nano-flame method and has the characteristics of high filtration efficiency, low resistance and large dust holding capacity.
High-efficiency air filters can be widely used in optical electronics, LCD liquid crystal manufacturing, biomedicine, precision instruments, beverages and foods, PCB printing and other industries at the end of air conditioning in dust-free workshops. Both high-efficiency and ultra-high-efficiency filters are used at the end of the clean room. According to their structure, they can be divided into: high efficiency with partitions, high efficiency without partitions, high efficiency with large air volume, and ultra-high efficiency filters.
The high-efficiency air filter filters out the dust again through the filter material on the top. In order to ensure that the air can only enter the dust-free workshop through the filter material, it must be sealed around the partitions of the college filter. The simple method is to seal the partition and the frame with adhesive to ensure that all the air is filtered and enter the clean room. Considering that the filter material needs to be replaced after a period of use, the general sealant is inconvenient to disassemble, so it needs to be used Seal with jelly glue. It has elasticity, good resilience, flexibility, etc. to ensure a good sealing effect; it can absorb the strain force generated by thermal expansion and contraction, and there can be no cracks to prevent air leakage; there is also a need to maintain the colloid for a long time Soft and elastic, the surface cannot be hardened or cracked.
The liquid tank sealant made of special silicone rubber is an elastic gel after curing, and it plays a sealing role in the liquid tank of the high efficiency air filter. An airtight and airtight sealing effect can be formed in the aluminum tank.
The liquid tank sealant has good adhesion to the tank wall. If the filter is moved or removed, this glue will easily separate from the filter, restore elasticity, and automatically restore the sealing effect. Excellent weather resistance, excellent chemical stability, corrosion resistance, can absorb the stress caused by thermal expansion and contraction without cracking, moderate softness and hardness, and good elastic recovery.
Liquid tank sealant is a special type of silicone rubber. In addition to its superior performance such as anti-aging of general silicone rubber, it also increases flexibility and resilience. It is much softer than the silicone pacifiers and silicone seals seen in daily life. The softness of human skin and muscles, when the knife edge of the bracket touches the sealant, the sealant can be closely attached to the knife edge of the bracket to play a sealing role. After long-term use, the surface of the liquid tank sealant will not harden and crack, maintaining a good sealing effect.
The mixing ratio of the two-component liquid tank sealant is 1:1, which is convenient for weighing, and the potting and production operation is convenient after mixing evenly, and there is no waste gas, waste liquid, and waste residue discharge.
The product validity period of the A and B components of the liquid tank sealant before mixing is 12 months, more than 12 months, a small amount can be mixed in proportion to observe the curing effect of the curing agent, if there is no big difference, it can be used normally.
The liquid tank sealant has a good sealing effect in a wide range, this range is -60℃ to 200℃. Glue has little effect on temperature changes, and has a good sealing effect at high and low temperatures. Installing a filter or moving a filter does not limit the temperature. But before use, you need to do experiments to confirm the effect.