The tensile properties of rubber
Kuedzwa kwemaitiro ekusimba erabha yakasvibiswa
Chero chigadzirwa cherabha chinoshandiswa pasi pemamwe masimba ekunze, saka zvinodikanwa kuti rabha rive nezvimwe zvemuviri uye zvemuchina, uye kuita kuri pachena kwakanyanya kuita kusimba.Paunenge uchiita ongororo yemhando yechigadzirwa, kugadzira rubber zvinhu fomula, kuona maitiro ekuita, uye kuenzanisa kurabha kuchembera kuramba uye kuramba kwepakati, zvinowanzodiwa kuti uongorore mashandiro anoita.Naizvozvo, kuita kwekumanikidza ndechimwe chezvinhu zvakakosha zvenguva dzose zvinhu zverabha.
Iyo tensile performance inosanganisira zvinotevera zvinhu:
1. Kushushikana mupfungwa (S)
Kushungurudzika kunokonzerwa nemuenzaniso panguva yekutambanudza ndiko kuenzana kwesimba rinoshandiswa kusvika kune imwe nzvimbo yepakati-chikamu chemuenzaniso.
2. Kushushikana mupfungwa panguva yakapihwa kurebesa (Se)
The tensile stress apo chikamu chekushanda chemuenzaniso chinotambanudzirwa kune yakapihwa kurebesa.Kushushikana kwakajairika kunosanganisira 100%, 200%, 300%, uye 500%.
3. Kusimba simba (TS)
Iyo yakanyanya tensile stress pane iyo specimen yakatambanudzwa kuti iputse.Kare yainzi tensile simba uye kusimba simba.
4. Elongation percentage (E)
Kuchinja kwechikamu chekushanda chinokonzerwa nemuenzaniso wekusimba ndiyo chiyero chekuwedzera kwehurefu kusvika kuhuwandu hwekutanga.
5. Kurebesa pane imwe stress (Eg)
Kurebesa kwemuenzaniso pasi pekunetseka kwakapihwa.
6. Kurebesa panguva yekuzorora (Eb)
Kurebesa kwemuenzaniso panguva yekuzorora.
7. Kuputsa zvachose deformation
Wedzera iyo muenzaniso kusvika yatsemuka, uye wozozviisa kune yakasara deformation mushure meimwe nguva (3 maminetsi) ekupora mumahara ayo.Kukosha ndiyo chiyero chekuwedzera kwekuwedzera kwechikamu chekushanda kusvika pakureba kwekutanga.
8. Kusimba simba panguva yekuzorora (TSb)
The tensile stress of a tensile specimen pakutyoka.Kana iyo muenzaniso ikaramba ichirebesa mushure megoho uye ichiperekedzwa nekuderera kwekushushikana, hutsika hweTS uye TSb hwakasiyana, uye kukosha kweTSb kudiki pane TS.
9. Tensile stress at goho (Sy)
Kushushikana kunoenderana neyokutanga poindi pa-stress-strain curve uko kushushikana kunowedzera asi kushushikana hakuwedzere.
10. Elongation pagoho (Ey)
The strain (elongation) inoenderana neyokutanga poindi pa-stress-strain curve uko kunetsa kunowedzera asi kushushikana hakuwedzere.
11. Rubber compression zvachose deformation
Zvimwe zvigadzirwa zverabha (zvakadai sezvisimbiso zvigadzirwa) zvinoshandiswa mune yakamanikidzwa mamiriro, uye kumanikidza kwavo kuramba ndechimwe chezvinhu zvikuru zvinokanganisa kunaka kwechigadzirwa.Iyo compression kuramba yerabha inowanzoyerwa nekumanikidza zvachose deformation.Kana rabha iri muchimiro chakatsikirirwa, inongoitika shanduko yemuviri nemakemikari.Kana simba rekumanikidzika ranyangarika, shanduko idzi dzinodzivirira kuti rabha irege kudzokera kune yayo yekutanga, zvichikonzera deformation yekusingaperi.Kukura kwekumanikidza kwechigarire deformation kunoenderana nekushisa uye nguva yekumanikidza nyika, pamwe nekushisa uye nguva iyo kureba kunodzorerwa.Pakupisa kwepamusoro, kuchinja kwemakemikari ndicho chikonzero chikuru chekudzvinyirira zvachose deformation yerabha.Kudzvanya zvachose deformation inoyerwa mushure mekubvisa simba rekumanikidza rinoiswa kumuenzaniso uye kudzoreredza hurefu patembiricha yakajairwa.Pakutonhora kwakadzika, shanduko dzinokonzerwa nekuomeswa kwegirazi uye crystallization ndizvo zvinhu zvikuru mukuedzwa.Kana tembiricha ichikwira, izvi zvinokonzeresa zvinonyangarika, saka zvinodikanwa kuyera kureba kwemuenzaniso patembiricha yekuyedza.
Parizvino pane zviyero zviviri zvepasirese zvekuyera kudzvanywa kwechigarire deformation yerabha muChina, zvinoti kumisa kudzvanya zvachose deformation pakupisa kwekamuri, tembiricha yepamusoro, uye tembiricha yakaderera yerabha ine vulcanized rabha uye thermoplastic rubber (GB/T7759) uye nzira yekusimbisa nguva dzose deformation compression zvachose deformation ye vulcanized rabha (GB/T1683)
Nguva yekutumira: Kubvumbi-01-2024
