Ukuhlolwa kokusebenza okuqinile kwerabha eshisiwe kufaka phakathi izinto ezilandelayo

Izici eziqinile zenjoloba

Ukuhlolwa kwezakhiwo eziqinile zerabha eshisiwe
Noma yimuphi umkhiqizo wenjoloba usetshenziswa ngaphansi kwezimo ezithile zamandla angaphandle, ngakho-ke kuyadingeka ukuthi irabha ibe nezakhiwo ezithile zomzimba nemishini, futhi ukusebenza okusobala kakhulu ukusebenza okuqinile.Lapho uhlola ikhwalithi yomkhiqizo oqediwe, uklama ifomula yezinto zenjoloba, unquma izimo zenqubo, futhi uqhathanisa ukumelana nokuguga kwenjoloba kanye nokumelana nokuphakathi, ngokuvamile kuyadingeka ukuhlola ukusebenza okuqinile.Ngakho-ke, ukusebenza okuqinile kungenye yezinto ezibalulekile zenjoloba.

Ukusebenza kwe-tensile kuhlanganisa izinto ezilandelayo:

1. Ingcindezi yokuqina (S)
Ukucindezeleka okukhiqizwa isifanekiso ngesikhathi sokwelula isilinganiso samandla asetshenzisiwe endaweni yokuqala yesiphambano sesampula.

2. ingcindezi yokuqina ebudeni obunikeziwe (Se)
Ingcindezi yokuqina lapho ingxenye yokusebenza yesifanekiso yelulelwa ekunwebeni okunikeziwe.Izingcindezi ezijwayelekile zokuqina zihlanganisa u-100%, 200%, 300%, kanye no-500%.

3. Amandla okuqina (TS)
Ingcindezi enkulu yokuqina lapho isifanekiso sinwetshwa ukuze siphuke.Ngaphambilini bekubizwa ngokuthi amandla aqinile kanye namandla aqinile.

4. Amaphesenti obude (E)
Ukuguqulwa kwengxenye yokusebenza okubangelwa isampula eqinile isilinganiso sokunyuka kobude ukuya kumaphesenti obude bokuqala.

5. Ukwelula ekucindezelekeni okuthile (isb.)
Ukwelulwa kwesifanekiso ngaphansi kwengcindezi ethile.

6. Ukwelula ngesikhathi sekhefu (Eb)
Ukwelulwa kwesampula ngesikhathi sekhefu.

7. Breaking deformation unomphela
Nweba isampula kuze kube yilapho siphuka, bese usibeka ekuguqukeni okusele ngemva kwesikhathi esithile (imizuzu emi-3) yokululama esimweni saso samahhala.Inani isilinganiso sokwelulwa okukhuphukayo kwengxenye yokusebenza kuya kubude bokuqala.

8. Amandla okuqina ngesikhathi sekhefu (TSb)
Ingcindezi eqinile yesampula eqinile ekuqhekekeni.Uma isifanekiso siqhubeka sikhula ngemva kwephuzu lokukhiqiza futhi sihambisana nokuncipha kokucindezeleka, amanani e-TS ne-TSb ahlukile, futhi inani le-TSb lincane kune-TS.

9. Ingcindezi yokuqina ngesikhathi sokuvunwa (Sy)
Ingcindezi ehambisana nephuzu lokuqala ku-strain-strain curve lapho i-strain iqhubeka inyuka kodwa ingcindezi inganyuki.

10. Elongation at isivuno (Ey)

I-strain (i-elongation) ehambelana nephuzu lokuqala kwijika le-stress-strain lapho ubunzima buqhubeka bukhuphuka kodwa ukucindezeleka kunganyuki.

11. I-Rubber compression deformation unomphela

Eminye imikhiqizo yenjoloba (njengemikhiqizo yokuvala) isetshenziswa esimweni sokucindezelwa, futhi ukumelana kwayo nokucindezela kungenye yezinto eziyinhloko ezithinta ikhwalithi yomkhiqizo.Ukumelana nokucindezelwa kwenjoloba ngokuvamile kukalwa ngokucindezelwa kwe-deformation unomphela.Uma irabha isesimweni sokucindezelwa, nakanjani iba nezinguquko emzimbeni namakhemikhali.Lapho amandla okucindezela enyamalala, lezi zinguquko zivimbela injoloba ukuthi ibuyele esimweni sayo sokuqala, okuholela ekuwohlokeni kokucindezela unomphela.Ubukhulu be-deformation yokucindezela unomphela buxhomeke ekushiseni kanye nesikhathi sombuso wokucindezela, kanye nezinga lokushisa kanye nesikhathi lapho ukuphakama kubuyiselwa khona.Emazingeni okushisa aphezulu, izinguquko zamakhemikhali ziyimbangela eyinhloko yokucindezelwa kwe-deformation unomphela yerabha.Ukuwohloka unomphela kokuminyanisa kukalwa ngemva kokukhipha amandla acindezelayo asetshenziswa esibonelweni nokubuyisela ukuphakama kwezinga lokushisa elijwayelekile.Emazingeni okushisa aphansi, izinguquko ezibangelwa ukuqina kwengilazi kanye ne-crystallization yizici eziyinhloko ekuhlolweni.Lapho izinga lokushisa likhuphuka, le miphumela iyanyamalala, ngakho-ke kuyadingeka ukukala ukuphakama kwesampula ekushiseni kokuhlola.

Njengamanje kunamazinga amabili kazwelonke okulinganisa ukucindezelwa unomphela kwenjoloba e-China, okuwukuthi ukunqunywa kokucindezelwa kwe-deformation unomphela ekamelweni lokushisa, izinga lokushisa eliphezulu, kanye nezinga lokushisa eliphansi lenjoloba ene-vulcanized nerabha ye-thermoplastic (GB/T7759) kanye nendlela yokunquma ukucindezelwa njalo kwe-deformation deformation unomphela werabha evuvukele (GB/T1683)