1. Basic process flow
Kune akawanda marudzi ezvigadzirwa zverabha, asi maitiro ekugadzira akafanana.Iyo yakakosha maitiro ezvigadzirwa zverabha zvine general solid rabha-raw rabha seyakabikwa inosanganisira matanhatu ekutanga maitiro: plasticizing, kusanganisa, calendering, extrusion, kuumba uye vulcanization.Ehe, maitiro ekutanga senge kugadzirwa kwezvinhu, kupera kwechigadzirwa, kuongorora uye kurongedza zvakare zvakakosha.Iyo tekinoroji yekugadzirisa yerabha inonyanya kugadzirisa kupokana pakati pepurasitiki uye elastic zvivakwa.Kuburikidza nenzira dzakasiyana-siyana dzetekinoroji, iyo elastic rabha inoshandurwa kuita epurasitiki masticated rabha, uye ipapo akasiyana-siyana ekubatanidza anowedzerwa kugadzira zvigadzirwa zvehafu-yapera, uyezve epurasitiki semi-apedzwa zvigadzirwa zvinoshandurwa kuita zvigadzirwa zverabha zvine elasticity yakakwira uye yakanaka yemuviri uye michina. zvinhu kuburikidza nevulcanization.
2. Kugadzirira kwezvinhu
Iyo huru yezvigadzirwa zverabha irabha mbishi sechinhu chakakosha, uye rabha mbishi inounganidzwa nekucheka makwati emiti yerabha inorimwa munzvimbo dzinopisa uye subtropics.
Akasiyana-siyana anosanganisa maajenti zvinhu zvekubatsira zvinowedzerwa kuvandudza zvimwe zvimiro zvezvigadzirwa zverabha.
Fiber zvinhu (donje, hemp, makushe uye akasiyana-siyana akagadzirwa nevanhu, faibha dzekugadzira uye zvinhu zvesimbi, waya dzesimbi) dzinoshandiswa senge skeleton zvinhu zvezvigadzirwa zverabha kuwedzera simba remuchina uye kudzikamisa chigadzirwa.Mukuita kwekugadzira zvinhu zvakasvibirira, zvinongedzo zvinofanirwa kuyerwa nemazvo zvinoenderana nefomu.Kuti iyo rabha yakasvibirira uye mumiriri wemusanganiswa ive homogeneous yakasanganiswa nemumwe, izvo zvinhu zvinoda kugadziriswa.Rabha mbishi inofanira kupfaviswa muimba yekuomesa pa60-70 ℃, yobva yadimburwa nekutyorwa kuita zvidimbu zvidiki.Komboning agent ine bundu.Zvakadai separafini, stearic acid, rosin, zvichingodaro.Kana hupfu huine hutsvina hwemagetsi kana zvidimbu zvakakora, zvinoda kuongororwa kuti zvibvise mvura yakaita sepine tar uye coumarone, inoda kupiswa, kunyungudutswa, kunyungudutswa uye kusefa.Kuumbwa kwebubble panguva yeuniform vulcanization kunokanganisa kunaka kwechigadzirwa.
3. Plasticizing
Raw rabha iri elastic uye inoshaya plasticity inodiwa pakugadzirisa, saka hazvisi nyore kugadzirisa.Kuti uvandudze mapurasitiki ayo, zvakakosha kuisa masticate rubber yakasvibirira, kuitira kuti mumiriri wekubatanidza anogona kuve nyore uye akaenzana akapararira murabha yakasvibirira panguva yekusanganiswa, uye panguva imwechete, inobatsirawo kuvandudza kupera kwemvura. rubber uye kupinda mumucheka wefiber panguva yecalendering uye kugadzira maitiro.uye kuumba fluidity.Maitiro ekusvibisa mamorekuru-refu-cheni yerabha yakasvibirira kuita plastiki inonzi mastication.Pane nzira mbiri dzekuisa plasticizing raw rabha: mechanical plasticizing uye thermal plasticizing.Mechanical mastication inzira iyo iyo yakareba-chain cheni mamorekuru anoderedzwa uye akapfupikiswa kubva kune yakakwira elastic state kuenda kune yepurasitiki mamiriro ne mechanical extrusion uye friction ye plasticizer pane yakaderera tembiricha.Kupisa plasticizing ndiko kupfuudza mweya unopisa wakadzvanywa murabha mbishi pasi pechiito chekupisa neokisijeni kushatisa mamorekuru ane cheni refu uye nekuapfupisa kuti awane purasitiki.
4.Kusanganisa
Kuti uenderane neakasiyana mamiriro ekushandiswa, tora akasiyana zvivakwa, uye kuti uvandudze mashandiro ezvigadzirwa zverabha uye kuderedza mutengo, akasiyana ekubatanidza maajenti anofanirwa kuwedzerwa kune raw rabha.Kusanganisa inzira iyo iyo masticated raw rubber inosanganiswa neanosanganisirwa agent, uye iyo inosanganisirwa mumiriri inoparadzirwa zvachose uye yakafanana yakaparadzirwa mu raw raw ne mechanical kusanganisa mumushini wekusanganisa rabha.Kusanganisa inzira yakakosha mukugadzirwa kwezvigadzirwa zverubha.Kana kusanganiswa kusiri yunifomu, mhedzisiro yerubha uye inosanganisa maajenti haigone kuve yakazara, iyo inokanganisa kushanda kwechigadzirwa.Rubber material inowanikwa mushure mekusanganiswa inonzi yakasanganiswa rubber.Iyo semi-yakapedzwa zvinhu zvekugadzira zvakasiyana-siyana zvigadzirwa zverabha, zvinowanzozivikanwa sezvinhu zverubha, izvo zvinowanzo tengeswa sechinhu.Vatengi vanogona kushandisa zvinhu zverabha kuti vagadzirise zvakananga, kuumba uye kuaisa muzvigadzirwa zverabha zvinodiwa..Zvinoenderana neakasiyana magadzirirwo, kune akatevedzana emhando dzakasiyana mamakisi uye akasiyana ane akasiyana zvivakwa zvekusarudza kubva.
5.Kuumba
Mukugadzira zvigadzirwa zverabha, maitiro ekugadzira akasiyana maumbirwo uye saizi nemacalender kana extruders inonzi molding.
6.Vulcanization
Maitiro ekushandura rabha repurasitiki kuita elastic rabha inonzi vulcanization.Iko kuwedzera imwe chiyero che vulcanizing agent senge sulfur, vulcanization accelerator, etc. The linear molecules ye raw raw inopindirana kune imwe neimwe kuti iite matatu-dimensional network structure kuburikidza nekugadzirwa kwe "sulfur bridges", kuitira kuti musanganiswa werabha wepurasitiki uve wakanyanya elastic vulcanizate.
Nguva yekutumira: Mar-29-2022