Yiziphi izinto zokwakha zokuqinisa ezifanele izimo zokusebenza eziphansi kakhulu (≤-40℃), futhi yiziphi izindawo zokwakha okufanele zicatshangelwe?

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Izinsiza zokuhambisa zepulasitiki ezipholile ezisezingeni eliphansi (ukugcina okupholile, imishini ye-liquide nitrogen, ukuvikelwa kwezimoto eziphakeme) zidinga ukuvikela ukuphaluka/ukungaqini ezingeni eliphansi, futhi izinto ezinconywayo ziyi:

– -40~200℃: I-silicone rubber enezinga eziphakeme zokushisa (ikhwalithi ephezulu yokuguquguquka ezinzima, esetshenziswa kakhulu);

– -40~150℃: Ifomula ye-low-temperature EPDM (ukumelana nokuguga kahle, efanele izinto zangaphandle ezisezingeni lokushisa eliphansi ngokuxhumana);

– -50~120℃: TPV (i-thermoplastic vulcanizate, kulula ukuyisebenzisa ezakhiweni eziyinkimbinkimbi).

Ngokwakhiwe, kukhuthazwa ukusebenzisa ukuklama okuthambile (40-50 Shore A), kuncishiswe ngokufanele ububanzi bokcross-section ukuvimbela ukuvinjwa okukhulu kwezinga lokushisa eliphansi nokwenza uqiniseke ngokusebenza kokuvikeleka.

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