Kugadzira
Kuumba maroller erabha kunonyanya kuitirwa kunamira rabha yekumonera pamusoro pesimbi, kusanganisira nzira yekuputira, nzira yekubvisa, nzira yekuumba, nzira yekumanikidza jekiseni uye nzira yekuisa jekiseni. Parizvino, zvigadzirwa zvikuru zvemumba zvinonamira nekugadzira nemaoko kana nemaoko, uye nyika zhinji dzekunze dzakaita otomatiki yemuchina. Maroller erabha makuru nepakati anogadzirwa nekugadzira extrusion, continuous pasting nefirimu rakaburitswa kana continuous winding molding netepi yekuburitsa. Panguva imwe chete, mukuumba, zvirevo, saizi uye chimiro chechitarisiko zvinodzorwa otomatiki ne microcomputer, uye zvimwe zvinogonawo kuumbwa nenzira ye right-angle extruder uye special-shaped extrusion.
Nzira yekuumba yataurwa pamusoro apa haingogone kuderedza simba rebasa chete, asiwo kubvisa mabubbles anogona kuitika. Kuti roller yerabha isakanganise panguva ye vulcanization uye kudzivirira kugadzirwa kwemabubbles nemasponge, kunyanya kune roller yerabha yakaumbwa nenzira yekuputira, nzira inochinjika yekumanikidza inofanira kushandiswa kunze. Kazhinji, pamusoro peruroller yerabha inoputirwa uye inoputirwa nejira rekotoni kana jira renylon, uye yozogadziriswa uye inomanikidzwa netambo yesimbi kana tambo yefiber. Kunyangwe maitiro aya atove akagadziriswa, dressing inofanira kubviswa mushure me vulcanization kuti iite maitiro e "cecal", izvo zvinoomesa maitiro ekugadzira. Uyezve, kushandiswa kwejira rekushongedza netambo yekumonera kwakaderera zvakanyanya uye kushandiswa kwakawanda.
Kune maroller erabha madiki neadiki, nzira dzakasiyana-siyana dzekugadzira dzinogona kushandiswa, dzakadai sekurongedza nemaoko, kuisa matendere ekubvisa zvinhu, kumanikidza jekiseni, kupinza nekuisa nekudira. Kuti zvivandudze kushanda zvakanaka kwekugadzira, nzira zhinji dzekuumba dzave kushandiswa, uye kururama kwakanyanya kupfuura kwenzira isina kuumba. Kumanikidza jekiseni, kupinza rabha rakasimba uye kudira rabha yemvura zvave nzira dzakakosha dzekugadzira.
Kuchinja kwevhu
Parizvino, nzira yekubvisa mavhiri makuru nepakati erabha ichishandiswa se "vulcanization tank vulcanization". Kunyangwe nzira ye "flexible pressurization mode" yakachinjwa, haisati yabva pamutoro webasa wekutakura, kusimudza nekuburitsa zvinhu. Sosi yekupisa ye "vulcanization" ine nzira nhatu dzekupisa: "steam", "hot air" nemvura inopisa, uye "mainstream" ichiri "steam". "Rabber rollers" dzine zvinodiwa zvakakosha nekuda kwekubatana kwesimbi ne "water vapor" dzinoshandisa "indirect steam vulcanization", uye nguva yacho ichawedzerwa ka1 kusvika ka2. Inowanzo shandiswa kune "rabber rollers" dzine "hollow iron cores". Kune "special rabber rollers" dzisingakwanise kubviswa ne "vulcanization" ne "vulcanization tank", dzimwe nguva mvura inopisa inoshandiswa pakubvisa mavhiri, asi kurapwa kwekusvibiswa kwemvura kunofanira kugadziriswa.
Kuti rabha nesimbi zvisaparadzwe nekuda kwekusiyana kwekusiyana kwemusiyano wekupisa pakati perubha nerubha, vulcanization inowanzo tora nzira yekupisa zvishoma nezvishoma uye kuwedzera kumanikidzwa, uye nguva yevulcanization yakareba kupfuura nguva yevulcanization inodiwa nerabha pachayo. . Kuti iwane vulcanization yakafanana mukati nekunze, uye kuti thermal conductivity yesimbi nerabha ifanane, rubha guru rinogara mutangi kwemaawa makumi maviri nemana kusvika makumi mana nemasere, inova nguva inosvika makumi matatu kusvika makumi mashanu kupfuura nguva yakajairika yevulcanization yerabha.
Maroller madiki uye madiki erabha ikozvino anowanzo shandurwa kuita plate vulcanizing press molding vulcanization, zvichichinja zvachose nzira yechinyakare yerubber rollers. Mumakore achangopfuura, michina yekuisa majekiseni yakashandiswa kuisa mamolds ne vacuum vulcanization, uye mamolds anogona kuvhurwa nekuvharwa otomatiki. Mwero we mechanization uye automation wavandudzika zvikuru, uye nguva ye vulcanization ipfupi, kushanda zvakanaka kwekugadzira kwakanyanya, uye mhando yechigadzirwa yakanaka. Kunyanya kana uchishandisa muchina we rabber injection molding vulcanizing, maitiro maviri ekuumba ne vulcanization anosanganiswa kuita chimwe chete, uye nguva inogona kupfupikiswa kusvika kumaminitsi maviri kusvika mana, izvo zvave nzira yakakosha yekuvandudza kugadzirwa kwerubber roller.
Parizvino, rabha yemvura inomiririrwa ne polyurethane elastomer (PUR) yakura nekukurumidza mukugadzirwa kwemaroller erabha, uye yakavhura nzira itsva yekugadzira zvinhu uye process. Inoshandisa fomu yekudurura kubvisa mashandiro akaomarara ekuumba uye michina yakakura ye vulcanization, zvichiita kuti maitiro ekugadzira maroller erabha ave nyore. Zvisinei, dambudziko guru nderekuti mamolds anofanira kushandiswa. Kune maroller erabha makuru, kunyanya kune zvigadzirwa zvega zvega, mutengo wekugadzira wakakwira zvakanyanya, izvo zvinounza matambudziko makuru mukusimudzirwa nekushandiswa.
Kuti dambudziko iri rigadziriswe, maitiro matsva ePUR rabha roller pasina kugadzira mold akaonekwa mumakore achangopfuura. Inoshandisa polyoxypropylene ether polyol (TDIOL), polytetrahydrofuran ether polyol (PIMG) uye diphenylmethane diisocyanate (MDl) sezvinhu zvakabikwa. Inokurumidza kuita mushure mekusanganisa nekukurunga, uye inodururwa zvakanyanya pasimbi yesimbi inotenderera zvishoma nezvishoma. , Inoitwa nhanho nhanho panguva yekudurura nekupukuta, uye pakupedzisira rabha roller inoumbwa. Maitiro aya haasi mapfupi chete, ane michina yakawanda uye otomatiki, asiwo anobvisa kudiwa kwemafuru makuru. Inogona kugadzira mabhururo erubha ane magadzirirwo akasiyana-siyana uye saizi painoda, izvo zvinoderedza zvakanyanya mutengo. Yave nzira huru yekuvandudza mabhururo ePUR rabha.
Pamusoro pezvo, maroller erabha madiki-diki anoshandiswa mukugadzira michina yekushanda otomatiki muhofisi ine rabha yesilicone yemvura ari kukurawo nekukurumidza pasi rese. Akakamurwa kuita mapoka maviri: heating curing (LTV) uye room temperature curing (RTV). Midziyo inoshandiswa yakasiyanawo nePUR iri pamusoro apa, ichigadzira imwe mhando ye casting form. Pano, nyaya yakakosha ndeyekuti ungadzora sei uye kuderedza viscosity yerabha kuitira kuti ikwanise kuchengetedza kumanikidzwa kwakati uye kumhanya kwekubuda.
Nguva yekutumira: Chikunguru-07-2021
