1. Ukumelana nokuhlolwa kokukhuluphala okuphakathi
Umkhiqizo oqediwe ungathathwa amasampula, ucwiliswe endaweni eyodwa noma eziningana ezikhethiwe, ulinganiswe ngemva kokushisa nesikhathi esithile, futhi uhlobo lwezinto lungaqagelwa ngokuya ngesilinganiso sokushintsha kwesisindo kanye nesilinganiso sokushintsha kobulukhuni.
Isibonelo, uma ifakwa ku-oyili engu-100 degrees amahora angama-24, i-NBR, irabha ye-fluorine, i-ECO, i-CR inoshintsho oluncane kwikhwalithi kanye nobulukhuni, kuyilapho i-NR, i-EPDM, i-SBR idlula kabili isisindo futhi ishintsha kakhulu ubulukhuni, futhi ukwanda kwevolumu kusobala.
2. Ukuhlolwa kokuguga komoya oshisayo
Thatha amasampula emikhiqizweni eseqediwe, uwafake ebhokisini lokuguga usuku olulodwa, bese ubheka lesi simo ngemva kokuguga. Ukuguga kancane kancane kungandiswa kancane kancane. Isibonelo, i-CR, i-NR, kanye ne-SBR kuzoba buthakathaka kuma-degrees angu-150, kuyilapho i-NBR EPDM isathambile. Lapho izinga lokushisa likhuphuka lifike kuma-degrees angu-180, i-NBR evamile izobuthakathaka; kanti i-HNBR nayo izobuthakathaka kuma-degrees angu-230, kanti irabha ye-fluorine kanye ne-silicone kusathambile kahle.
3. Indlela yokushisa
Thatha isampula encane bese uyishisa emoyeni. bheka lesi simo.
Ngokuvamile, irabha ye-fluorine, i-CR, i-CSM ayinawo umlilo, futhi noma ilangabi livutha, lincane kakhulu kune-NR ejwayelekile kanye ne-EPDM. Vele, uma sibheka ngokucophelela, isimo sokusha, umbala, kanye nephunga nakho kusinikeza ulwazi oluningi. Isibonelo, lapho i-NBR/PVC ihlanganiswa neglue, lapho kukhona umthombo womlilo, umlilo uyaqhuma futhi ubonakale sengathi ufana namanzi. Kufanele kuqashelwe ukuthi ngezinye izikhathi iglue evimbela umlilo kodwa engenawo i-halogen nayo iyazicisha emlilweni, okufanele iqondwe kabanzi ngezinye izindlela.
4. Ukulinganisa amandla adonsela phansi athile
Sebenzisa isikali se-elekthronikhi noma ibhalansi yokuhlaziya, enembile ku-0.01 gram, kanye nengilazi yamanzi kanye nezinwele.
Ngokuvamile, irabha ye-fluorine inomthamo omkhulu kunayo yonke, ngaphezu kuka-1.8, futhi iningi lemikhiqizo ye-CR ECO inesilinganiso esikhulu ngaphezu kuka-1.3. Lezi zinhlayiya zingacatshangelwa.
5. Indlela yokushisa okuphansi
Thatha isampula kumkhiqizo oqediwe bese usebenzisa iqhwa elomile notshwala ukuze udale indawo efanelekile yokushisa okuphansi imizuzu emi-2-5, uzwe ubumnene nobunzima ekushiseni okukhethiwe. Isibonelo, kuma-degrees angu-40, kuqhathaniswa izinga lokushisa elifanayo eliphezulu kanye nokumelana namafutha ejeli ye-silica kanye nerabha ye-fluorine, bese ijeli ye-silica ithambile.
Isikhathi sokuthunyelwe: Julayi-18-2022
