The ห้องเย็น Diaries
The ห้องเย็น Diaries
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Methylene Diphenyl Diisocyanate (MDI): MDIs are made with the phosgenation of your condensation item of aniline with formaldehyde. The most common isomer Utilized in polyurethane manufacturing is purified 4,four isomers. MDIs are generally Utilized in manufacturing rigid and semi-rigid polyurethane foams.
There is a different FED 209E cleanroom classification technique that has been Traditionally Employed in Usa for industrial cleanrooms for instance semiconductor cleanrooms and printed circuit board cleanrooms. The ISO cleanroom classification is on metric system (particles for each meter3).
Diisocyanate: Together with the polyols, diisocyanate compounds type the prepolymer of the polyurethane system. There's two key different types of diisocyanate: aliphatic and aromatic.
Use outside finishes such as siding, cladding, or paint to shield the sandwich panels from The weather even though also improving upon the home’s appears.
ทำความสะอาดบ้านด้วยผ้าชุบน้ำบิดหมาด ๆ แทนไม้ปัดขนไก่ และใช้เครื่องดูดฝุ่นที่มีตัวกรองอากาศประสิทธิภาพสูง
The flooring is perforated to permit air to pass thru. The tiles are mounted on aluminum pedestals to make two’ House beneath flooring for that air to circulation. Heat welded vinyl and epoxy flooring can also be utilized for ISO-five cleanrooms.
Frequent inspection and maintenance, including cleaning and inspecting seals, ensures that the roof program lasts and performs very well.
1. Air equipped via HEPA filters with high air improvements to dilute and remove the particles and microbial contamination created by staff as well as the machinery.
เพราะถ้าไฟไม่พอหรือไฟตกจะมีผลกระทบกับเครื่องทำความเย็นห้องเย็น
Load-bearing Potential: The load-bearing potential could be the evaluate of the amount compressive drive the foam can support.
EPS foam’s power to absorb shocks and vibrations makes sure that goods get there intact at their destination, minimizing returns and customer grievances.
The main reactive components are polyols, diisocyanates, and chemical blowing agents. Polyols and diisocyanates are important for polymerization, though diisocyanates and blowing brokers (like drinking water) drive fuel generation. The strategies of combining these parts fluctuate dependant upon the certain kind of polymer system preparing.
The final filtration of air occurs where the air enters the cleanroom. Also, it truly is most typical for ISO eight cleanrooms to make use of non-unidirectional or mixed air stream designs with low wall air returns. Prevalent ISO 8 Purposes
Thermal Insulation: Rigid polyurethane foam is inserted in การปรับ On-Page to the walls of buildings and homes in the course of development to scale back heating and cooling charges and also carbon emissions. Moreover, it lasts for over a fifty percent-century with no need replacement or restore. Elastomers: Elastomers are among the much more predominant utilizes for polyurethane foam due to their resilience, elasticity, adaptability, and capacity to resist large bodyweight masses. A common use for polyurethane is as gasket material as a consequence of its capacity to be stressed or torqued and return to its authentic condition. Sponges: Polyurethane foam is applied to make sponges on account of its versatility and tensile strength, that makes it more unlikely for sponges to tear or flake.