Rubber ine elasticity yakanaka, asi ichi chakakosha chivakwa chinopa matambudziko makuru mukugadzirwa kwechigadzirwa. Kana iyo elasticity ye raw raw isati yatanga kuderedzwa, mazhinji emagetsi emagetsi anopedzwa mu elastic deformation panguva yekugadzirisa, uye chimiro chinodiwa hachigone kuwanikwa. Rubber processing tekinoroji ine zvimwe zvinodikanwa zvepurasitiki yerabha mbishi, sekusanganisa, izvo zvinowanzoda Mooney viscosity inosvika makumi matanhatu, uye kupukuta rabha, izvo zvinoda Mooney viscosity inosvika makumi mana, Zvikasadaro, hazvizogone kushanda zvakanaka. . Mamwe mabhidhiyo anonamira akaomarara, ane yakakwira viscosity, uye anoshaya ekutanga uye anodiwa maitiro maitiro - yakanaka plasticity. Kuti isangane nezvinodiwa zvemaitiro, iyo rabha yakasvibirira inofanirwa kuve yakashongedzwa kuti icheke mamorekuru cheni uye kuderedza huremu hwemamorekuru pasi pemakanika, kupisa, kemikari uye zvimwe zviito. Mushonga wepurasitiki unomborasika kusimba kwawo uye unova wakapfava uye unoumbika. Zvinogona kutaurwa kuti raw raw molding ndiyo nheyo yemamwe maitiro etekinoroji.
Chinangwa chekuumba raw raw ndeye: chekutanga, kuwana imwe dhigirii yepurasitiki yerabha yakasvibirira, ichiita kuti ive yakakodzera kusanganisa, kutenderedza, extrusion, kuumba, vulcanization, pamwe nezvinodiwa zvemaitiro akadai serubha slurry uye sponge rubber. kugadzira; Chechipiri ndechekuita homogenize yepurasitiki yerabha yakasvibirira kuitira kuti ibudise zvinhu zverabha zvine yunifomu yemhando.
Mushure mepurasitiki, iyo yemuviri uye yemakemikari zvimiro zverabha yakasvibirira zvakare inochinja. Nekuda kwesimba rakasimba remagetsi uye oxidation, iyo molecular chimiro uye molecular huremu hwerabha huchachinja kune imwe nhanho, saka iyo yemuviri uye yemakemikari zvimiro zvichachinja zvakare. Izvi zvinoratidzwa mukuderera kwe elasticity, kuwedzera kwepurasitiki, kuwedzera kwekunyungudika, kuderera kweviscosity yerubber solution, uye kuvandudzwa kwekuita kwekunamira kwezvinhu zverabha. Asi sezvo purasitiki yerabha yakasvibirira inowedzera, simba remakiniki rerabha rakasvibiswa rinodzikira, deformation yekusingaperi inowedzera, uye kuramba kupfeka uye kuramba kuchembera zvese zvinodzikira. Naizvozvo, iyo plasticization yerabha yakasvibirira inongobatsira chete kune iyo rubber process process, uye haina kukonzeresa kuita kwe vulcanized rabha.
Nguva yekutumira: Jul-26-2023
