Izindlela ezimbalwa ezijwayelekile zokuhlonza irabha

1. Ukumelana nokuhlolwa kwesisindo esimaphakathi

Umkhiqizo oqediwe ungenziwa isampula, ucwiliswe emthonjeni owodwa noma eminingana ekhethiwe, ukalwe ngemva kwezinga lokushisa elithile nesikhathi, futhi uhlobo lwempahla lungachazwa ngokwezinga lokushintsha isisindo kanye nezinga lokushintsha ubulukhuni.

Isibonelo, ukucwiliswa kuwoyela we-100 degree amahora angama-24, i-NBR, irabha ye-fluorine, i-ECO, i-CR inoshintsho oluncane lwekhwalithi nobulukhuni, kuyilapho i-NR, i-EPDM, i-SBR iphindwe kabili ngesisindo futhi ishintsha ubulukhuni kakhulu, nokwanda kwevolumu. kusobala.

2. Ukuhlolwa kokuguga komoya oshisayo

Thatha amasampula emikhiqizweni eqediwe, uwafake ebhokisini lokuguga usuku olulodwa, bese ubheka lesi simo ngemva kokuguga.Ukuguga kancane kancane kungandiswa kancane kancane.Isibonelo, i-CR, NR, ne-SBR izoba nama-brittle at 150 degrees, kuyilapho i-NBR EPDM isanwebeka.Lapho izinga lokushisa likhuphuka lifika ku-180 degrees, i-NBR evamile izoba brittle;futhi i-HNBR izophinde ibe brittle ngo-230 degrees, futhi irabha ye-fluorine ne-silicone isenokunwebeka okuhle.

3. Indlela yomlilo

Thatha isampula encane bese uyishisa emoyeni.bheka lesi simo.

Ngokuvamile, irabha ye-fluorine, i-CR, i-CSM ayinamlilo, futhi ngisho noma ilangabi livutha, lincane kakhulu kune-NR evamile kanye ne-EPDM.Yebo, uma sibhekisisa, isimo sokusha, umbala, nephunga nakho kusinikeza ulwazi oluningi.Isibonelo, lapho i-NBR/PVC ihlanganiswa neglue, uma kunomthombo womlilo, umlilo uyafafaza futhi ubonakale ufana namanzi.Kumele kuqashelwe ukuthi ngezinye izikhathi i-flame retardant kodwa i-halogen-free glue izozicisha ngokwayo emlilweni, okufanele iqhutshwe ngezinye izindlela.

4. Ukulinganisa amandla adonsela phansi athile

Sebenzisa isikali sikagesi noma ibhalansi yokuhlaziya, enembile ibe ngu-0.01 gram, kanye nengilazi yamanzi nezinwele.

Ngokuvamile, irabha ye-fluorine ine-gravity ethile enkulu kunazo zonke, ngaphezu kuka-1.8, futhi iningi lemikhiqizo ye-CR ECO inengxenye enkulu ngaphezu kwe-1.3.Lezi glue zingacatshangelwa.

5. Indlela yokushisa ephansi

Thatha isampula emkhiqizweni oqediwe futhi usebenzise iqhwa elomile notshwala ukuze udale indawo efanelekile ye-cryogenic.Gcoba isampula endaweni yokushisa ephansi imizuzu engu-2-5, uzwe ukuthambile nobulukhuni ekushiseni okukhethiwe.Isibonelo, ku--40 degrees, ukushisa okufanayo okuphezulu nokumelana nowoyela i-silica gel kanye nerabha ye-fluorine kuqhathaniswa, futhi i-silica gel ithambile.