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PSA Nitrogen Generators for Electronics Industry (SM

Country/Region china
Company Suzhou Advanced Clean Tech Co. Ltd
Categories PSA Nitrogen Generator
Telephone +86-512-66321603
ICP License Issued by the Chinese Ministry
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    PSA Nitrogen Generators for Electronics Industry (SM

    • PSA Nitrogen Generators for Electronics Industry (SMT)
    • PN Series
    • Details

    SMT PSA Nitrogen Generators for Electronics Industry

    Due to the EU's ROHS and the urgent need of environmental protection, lead-free process has been widely used, so SMT users are deeply concerned about the lead-free technology. Most electronics factories choose to generate nitrogen on site or purchase liquid nitrogen from industrial gas companies. Although the supply of liquid nitrogen is convenient and efficient, it is costly, greatly affected by external supply source and needs frequent supplement.

    Compared to the use of liquid nitrogen, there are many advantages for using PSA (pressure swing adsorption) nitrogen generators as the gas source.

    Cost-effective Compared to the use of liquid nitrogen, there are many advantages for using PSA (pressure swing adsorption) nitrogen generators as the gas source. The operation and maintenance of PSA nitrogen generators cost less. Besides, it takes about ten months to recover the cost of investment.

    Convenient operation PSA nitrogen generator is a fully automatic and unmanned machine. After working for 10-15 minutes, it will meet the design requirements. You are free to choose continuous or discontinuous operation without worrying about the external supply source.

    Easy maintenance The structure of such equipment is simple, so it's easy and cheap to maintain.

    Safe production It works at room temperature and low pressure. There is no special requirement for the containers.

    Low requirement for site The equipment takes up a small space. The installation only needs a short time and low cost, and there is no special requirement for the workshop.

    Process selection of SMT nitrogen generators for electronics industry

    Determine the nitrogen purity First determine the nitrogen purity required by the reflow furnace (the ppm value of oxygen content), and then the outlet purity of the nitrogen generator. In view of the balance between cost of investment and reject ratio or reworking, the reasonable value needs to be determined. At present, some options are popular among the related companies, including Taiwan's Hon Hai.

    In most cases, the nitrogen content is 99.99%, namely, the oxygen content is less than 100ppm. Or the nitrogen content is 99.9%, namely, the oxygen content is less than 1000ppm. Only a few conpanies choose the nitrogen content of 99.999%, which means the oxygen content is less than 10ppm.
    After the nitrogen purity in the furnace is fixed, then comes the nitrogen generator's outlet purity. Nitrogen generators are usually placed on the roof or outside the workshop, and pipeline transport can bring down the nitrogen purity, so the outlet purity needs to be higher.

    Determine the volume of nitrogen The nitrogen consumption varies with different brands and different models of SMT equipment. The size of input PCB and the rotation speed of chains also lead to different consumption amount of nitrogen. The pure nitrogen required by a SMT production line is about 20m3 / hr.

    The technological process of PSA nitrogen generator

    PN series of ACTfil nitrogen generator have PSA (pressure swing adsorption) at normal temperature as the technological means of making high-purity nitrogen. The carbon molecular sieves with the characteristics of selective absorption are pressurized to adsorb the impurities. Then these carbon molecular sieves are decompressed to remove the impurities and regenerate the carbon molecular sieves.

    Therefore, two adsorption towers work alternately to obtain cheap high-purity nitrogen. The adsorption and desorption are achieved by changing pressures, so this process is known as PSA (PRESSURE SWING ADSOPTION).

    The characteristics of ACTfil electronics industry nitrogen generator

    PN series of ACTfil nitrogen generators for electronics industry are dedicated nitrogen-generating devices. They are based on the general PSA nitrogen equipment and meet the process requirements of electronics industry.The nitrogen-generating device specially developed based on the requirements of lead-free welding process in electronic SMT industry. They have also received the certifications of UKAS (United Kingdom Accreditation Service) and CCS (China Classification Society).

    The main technical parameters

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