1. Basic process flow
Kune akawanda marudzi ezvigadzirwa zverabha, asi maitiro ekugadzira akafanana. Iyo yakakosha maitiro ezvigadzirwa zverabha zvine zvakajairika rabha-raw rabha seyakagadzirwa zvinosanganisira 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 anosanganisa maajenti anowedzerwa kuti agadzire zvigadzirwa zvapera, 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 zvivakwa 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. Mukugadzirisa zvinhu zvakasvibiswa, zvigadzirwa zvinofanirwa kuyerwa nenzira kwayo zvichienderana nefomu. Kuti iyo rabha yakasvibirira uye mumiriri wemusanganiswa ive homogeneous yakasanganiswa nemumwe, izvo zvinhu zvinoda kugadziriswa. Iyo rabha mbishi inofanira kupfaviswa muimba yekuomesa pa60-70 ℃, uye yobva yadimburwa nekuputswa 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, kubuda evaporated, 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 akapararira akapararira murabha yakasvibirira panguva yekusanganiswa, uye panguva imwe chete, inobatsirawo kuvandudza kupera kwemvura. rubber uye kupinda mumucheka wefiber panguva yecalendering uye kugadzira maitiro. uye kuumba fluidity. Iyo nzira yekusvibisa mamorekuru-echeni mamorekuru erabha mbishi kuti aumbe plastiki inonzi mastication. Kune 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 wakamanikidzwa 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 inosanganisa agent inoparadzirwa zvachose uye yakafanana yakapararira muraw raw nekusanganiswa kwemagetsi 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, zvinowanzo zivikanwa serubha zvinhu, izvo zvinowanzo tengeswa sechinhu. Vatengi vanogona kushandisa iyo rabha zvinhu kuti vagadzirise zvakananga, kuumba uye kuite vulcanize 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
