Gulu ndi kugwiritsa ntchito labala

1. Tanthauzo la mphira

Mawu akuti "rabara" amachokera ku chilankhulo cha India cau uchu, kutanthauza "mtengo wakulira".

Tanthauzo la ASTM D1566 ndi motere: mphira ndi chinthu chomwe chimatha kubwezeretsanso mapindikidwe ake mwachangu komanso moyenera ndipo chimatha kusinthidwa.Rabara yosinthidwa sangakhale (koma ikhoza) kusungunuka mu zosungunulira zotentha monga benzene, methyl ethyl ketone, ethanol toluene osakaniza, ndi zina zotero. Rabara yosinthidwa inatambasulidwa kuwirikiza kawiri kutalika kwake koyambirira kutentha kwa chipinda ndikusungidwa kwa mphindi imodzi.Pambuyo pochotsa mphamvu yakunja, imatha kubwereranso kunthawi zosakwana 1.5 kutalika kwake koyambirira mu mphindi imodzi.Kusinthidwa komwe kumatchulidwa m'matanthauzowo kumatanthawuza vulcanization.

Mamolekyu a rabara amatha kulumikizidwa.Pamene mphira wolumikizidwa ndi mtanda wapunduka pansi pa mphamvu yakunja, imatha kuchira msanga, ndipo imakhala ndi zinthu zabwino zakuthupi ndi zamakina komanso kukhazikika kwamankhwala.Pang'ono mphira ndi zinthu zotanuka kwambiri.

Rubber ndi zinthu za polima, zomwe zimakhala ndi zinthu zambiri zodziwika bwino zamtunduwu, monga kachulukidwe kakang'ono, kutsika pang'ono kwamadzimadzi, kutchinjiriza, viscoelasticity komanso kukalamba kwachilengedwe.Kuonjezera apo, mphira ndi wofewa komanso wochepa mu kuuma.

2. Gulu lalikulu la mphira

Mphira umagawidwa kukhala mphira wachilengedwe ndi mphira wopangidwa molingana ndi zida.Itha kugawidwa mu mphira yaiwisi ya block, latex, rabara yamadzimadzi ndi mphira wa ufa malinga ndi mawonekedwe.

Latex ndi colloidal madzi kubalalitsidwa kwa mphira;mphira wamadzimadzi ndi oligomer wa rabala, amene kawirikawiri ndi viscous madzi pamaso vulcanization;

Labala la ufa limagwiritsidwa ntchito popanga latex kukhala ufa wa batching ndi kukonza.

Rabara ya thermoplastic yomwe idapangidwa m'zaka za m'ma 1960s safuna vulcanization yamankhwala, koma imagwiritsa ntchito zofunikira za mapulasitiki a thermoplastic kupanga.Mphira ukhoza kugawidwa mu mtundu wamba ndi mtundu wapadera malinga ndi ntchito.

3. Kugwiritsa ntchito labala

Rubber ndiye maziko opangira mphira, omwe amagwiritsidwa ntchito kwambiri popanga matayala,mabomba a mphira, matepi,choyimitsa mphira, zingwe ndi zinthu zina za labala.

4. Kugwiritsa ntchito mankhwala opangidwa ndi mphira

Zopangidwa ndi mphira zowonongeka zimapangidwa ndi makampani amagalimoto.Kukula mwachangu kwamakampani amagalimoto ndi mafakitale a petrochemical m'zaka za m'ma 1960 kwasintha kwambiri kuchuluka kwamakampani opanga mphira;M'zaka za m'ma 1970, pofuna kukwaniritsa zofunikira za liwiro lapamwamba, chitetezo, kusungirako mphamvu, kuthetsa kuipitsidwa ndi kuwonongeka kwa magalimoto, mitundu yatsopano ya matayala inalimbikitsidwa.Kugwiritsidwa ntchito kwa rabala kosaphika kumapangitsa kuti pakhale zoyendera.

Mwachitsanzo;Galimoto ya Jiefang ya matani 4 imafunika zinthu za rabara zopitirira 200 kg, chonyamula pampando cholimba chiyenera kukhala ndi zinthu za rabara zopitirira 300 kg, sitima yapamadzi yokwana matani 10000 ikufunika pafupifupi matani 10 a zinthu za mphira, ndipo ndege yandege ikufunika pafupifupi 600 kg ya mphira.M'nyanja, pamtunda ndi ndege, palibe amene angachite popanda mankhwala opangidwa ndi mphira.