Mafakitale ambiri amagwiritsa ntchito makina osakaniza rabala otseguka. Chinthu chake chachikulu ndichakuti chimakhala chosinthasintha komanso chosunthika, ndipo chimagwiritsidwa ntchito makamaka posakaniza mitundu yosiyanasiyana ya rabala, rabala yolimba, rabala ya siponji, ndi zina zotero.
Mukasakaniza ndi mphero yotseguka, dongosolo la mlingo ndilofunika kwambiri. Nthawi zonse, rabala yosaphika imayikidwa mu mpata wa mpukutu kumapeto kwa gudumu lokanikiza, ndipo mtunda wa mpukutu umayendetsedwa pafupifupi 2mm (tengani chosakaniza cha rabala cha mainchesi 14 mwachitsanzo) ndikuzungulira kwa mphindi 5. Guluu wosaphika umapangidwa kukhala filimu yosalala komanso yopanda mipata, yomwe imakulungidwa pa roller yakutsogolo, ndipo pali guluu wochuluka womwe umasonkhanitsidwa pa roller. Rabala yosaphika imakhala pafupifupi 1/4 ya kuchuluka konse kwa rabala yosaphika, kenako zotsutsana ndi ukalamba ndi zotsatsira zimawonjezedwa, ndipo rabala imakokedwa kangapo. Cholinga cha izi ndikupanga antioxidant ndi accelerator kufalikira mofanana mu guluu. Nthawi yomweyo, kuwonjezera koyamba kwa antioxidant kumatha kuletsa kukalamba kwa kutentha komwe kumachitika panthawi yosakaniza rabala yotentha kwambiri. Ndipo zotsatsira zina zimakhala ndi mphamvu ya pulasitiki pa rabala. Zinc oxide imawonjezedwa. Mukawonjezera kaboni wakuda, pang'ono kwambiri ziyenera kuwonjezedwa poyamba, chifukwa rabala zina zosaphika zimatuluka mu mpukutu wakuda wa kaboni ukawonjezedwa. Ngati pali chizindikiro chilichonse cha kutayikira, siyani kuwonjezera kaboni wakuda, kenako onjezerani kaboni wakuda pambuyo poti rabala yazunguliridwa mozungulira roller bwino. Pali njira zambiri zowonjezerera kaboni wakuda. Makamaka phatikizani izi: 1. Onjezani kaboni wakuda pautali wogwirira ntchito wa roller; 2. Onjezani kaboni wakuda pakati pa roller; 3. Onjezani pafupi ndi mapeto amodzi a baffle. Malinga ndi maganizo anga, njira ziwiri zomaliza zowonjezerera kaboni wakuda ndizoyenera, kutanthauza kuti, gawo lokha la degumming limachotsedwa pa roller, ndipo sizingatheke kuchotsa roller yonse. Pambuyo poti rabala yachotsedwa pa roller, kaboni wakuda umakanikizidwa mosavuta kukhala ma flakes, ndipo sikophweka kufalitsa mutapindanso. Makamaka mukakanda rabala wolimba, sulfure imakanikizidwa kukhala ma flakes, zomwe zimakhala zovuta kwambiri kufalitsa mu rabala. Kukonzanso kapena kupitirira pang'ono sikungasinthe malo achikasu omwe ali mu filimuyi. Mwachidule, mukawonjezera kaboni wakuda, onjezerani pang'ono komanso pafupipafupi. Musavutike kutsanulira kaboni wakuda wonse pa roller. Gawo loyamba lowonjezera kaboni wakuda ndi nthawi yofulumira kwambiri "kudya". Musawonjezere chofewetsa panthawiyi. Mukawonjezera theka la kaboni wakuda, onjezani theka la chofewetsa, chomwe chingathandize "kudyetsa". Gawo lina la chofewetsa limawonjezeredwa ndi kaboni wakuda wotsala. Powonjezera ufa, mtunda wa mpukutu uyenera kuchepetsedwa pang'onopang'ono kuti mphira wolowetsedwawo ukhale mkati mwa malo oyenera, kuti ufawo ulowe mwachibadwa mu mphira ndipo ukhoza kusakanikirana ndi mphira mpaka pamlingo waukulu. Pa gawoli, n'koletsedwa kudula mpeni, kuti usakhudze mtundu wa mphira. Ngati chofewetsa chachuluka kwambiri, kaboni wakuda ndi chofewetsa zitha kuwonjezeredwanso ngati phala. Stearic acid sayenera kuwonjezeredwa msanga kwambiri, ndikosavuta kuyambitsa kugwedezeka, ndibwino kuwonjezera pamene pali kaboni wakuda mu mpukutu, ndipo chofewetsa chiyeneranso kuwonjezeredwa mtsogolo. Zofewetsa zina zimawonjezeredwanso pamene pali kaboni wakuda pang'ono pa roller. Monga chofewetsa DCP. Ngati kaboni wakuda wonse wadyedwa, DCP idzatenthedwa ndikusungunuka kukhala madzi, omwe adzagwera mu thireyi. Mwanjira imeneyi, chiwerengero cha zinthu zopukutira mu thireyi chidzachepa. Zotsatira zake, ubwino wa thireyi ya rabara umakhudzidwa, ndipo mwina ingayambitse vulcanization yosaphikidwa bwino. Chifukwa chake, chinthu chopukutira chiyenera kuwonjezedwa panthawi yoyenera, kutengera mtundu wake. Mitundu yonse ya zinthu zopukutira ikawonjezedwa, ndikofunikira kutembenuzanso kuti thireyi ya rabara isakanizidwe mofanana. Nthawi zambiri, pamakhala "mipeni isanu ndi itatu", "matumba a triangle", "kugubuduza", "zingwe zopyapyala" ndi njira zina zozungulira.
"Mipeni isanu ndi itatu" ndi kudula mipeni pa ngodya ya 45° motsatira njira yofanana ya chopukutira, kanayi mbali iliyonse. Guluu wotsalayo amapindidwa 90° ndikuwonjezeredwa ku chopukutira. Cholinga chake ndichakuti zinthu za rabara zizunguliridwe molunjika komanso mopingasa, zomwe zimathandiza kusakaniza mofanana. "Chikwama cha Triangle" ndi thumba la pulasitiki lomwe limapangidwa kukhala katatu ndi mphamvu ya chopukutira. "Kugubuduza" ndikudula mpeni ndi dzanja limodzi, kukulunga zinthu za rabala mu silinda ndi dzanja lina, kenako nkuyika mu chopukutira. Cholinga cha izi ndikupanga rabala kukhala yosakanikirana mofanana. Komabe, "chikwama cha triangle" ndi "kugubuduza" sizithandiza kutentha kwa zinthu za rabala, zomwe ndizosavuta kuyambitsa kutentha, ndipo zimagwira ntchito yambiri, kotero njira ziwirizi siziyenera kulangizidwa. Nthawi yotembenuza ndi mphindi 5 mpaka 6.
Pambuyo poti rabala lasungunuka, ndikofunikira kupukuta rabala. Kafukufuku wasonyeza kuti rabala lasungunuka ndi lothandiza kwambiri pakufalikira kwa chosakaniza mu rabala. Njira yopyapyala ndiyo kusintha mtunda wa roller kufika pa 0.1-0.5 mm, kuyika zinthu za rabala mu roller, ndikuzisiya kuti zigwere mu thireyi yodyetsera mwachibadwa. Pambuyo poti lagwa, tembenuzani zinthu za rabala ndi 90° pamwamba pa roller. Izi zimabwerezedwa kasanu mpaka kasanu ndi kamodzi. Ngati kutentha kwa zinthu za rabala kuli kokwera kwambiri, siyani kupukuta kwa rabala, ndikudikirira kuti zinthu za rabala zizizire musanazichepetse kuti zinthu za rabala zisapse.
Pambuyo podutsa pang'ono, chepetsani mtunda wa mpukutu kufika pa 4-5mm. Musanalowetse zinthu za rabara mgalimoto, chidutswa chaching'ono cha zinthu za rabara chimang'ambika ndikuyikidwa mu ma roller. Cholinga chake ndikutulutsa mtunda wa mpukutu, kuti makina osakanizira rabara asagwidwe mwamphamvu ndi mphamvu yayikulu ndikuwononga zida pambuyo poti zinthu zambiri za rabara zalowetsedwa mu roller. Pambuyo poti zinthu za rabara zalowetsedwa mgalimoto, ziyenera kudutsa mpata wa mpukutu kamodzi, kenako nkukulunga pampukutu wakutsogolo, pitirizani kuzitembenuza kwa mphindi ziwiri mpaka zitatu, ndikuzitsitsa ndikuziziritsa pakapita nthawi. Filimuyo ndi yayitali masentimita 80, mulifupi masentimita 40 ndi makulidwe a 0.4 cm. Njira zoziziritsira zimaphatikizapo kuziziritsa kwachilengedwe ndi kuziziritsa kwa thanki yamadzi ozizira, kutengera momwe chipangizo chilichonse chilili. Nthawi yomweyo, ndikofunikira kupewa kukhudzana pakati pa filimuyo ndi dothi, mchenga ndi dothi lina, kuti zisakhudze mtundu wa rabara.
Pakusakaniza, mtunda wa roll uyenera kulamulidwa mosamala. Kutentha komwe kumafunika pakusakaniza ma rabala osiyanasiyana osaphika ndi kusakaniza mitundu yosiyanasiyana ya zinthu zolimba ndi kosiyana, kotero kutentha kwa roll kuyenera kuyesedwa malinga ndi momwe zinthu zilili.
Ogwira ntchito zina zosakaniza rabala ali ndi malingaliro awiri olakwika awa: 1. Amaganiza kuti nthawi yosakaniza ikatalikira, mtundu wa rabala umakhala wapamwamba. Izi sizili choncho m'machitidwe, pazifukwa zomwe tafotokoza pamwambapa. 2. Amakhulupirira kuti guluu wosonkhanitsidwa mofulumira pamwamba pa roller umawonjezedwa, liwiro losakaniza limakhala lofulumira. Ndipotu, ngati palibe guluu wosonkhanitsidwa pakati pa ma roller kapena guluu wosonkhanitsidwa ndi wochepa kwambiri, ufawo udzakanikizidwa mosavuta kukhala ma flakes ndikugwera mu thireyi yodyetsera. Mwanjira imeneyi, kuwonjezera pa kukhudza ubwino wa rabala wosakaniza, thireyi yodyetsera iyenera kutsukidwanso, ndipo ufa wogwa umawonjezedwa pakati pa ma roller, womwe umabwerezedwa mobwerezabwereza, zomwe zimawonjezera nthawi yosakaniza ndikuwonjezera mphamvu ya ntchito. Zachidziwikire, ngati guluu wosonkhanitsidwa ndi wochuluka kwambiri, liwiro losakaniza la ufa lidzachepetsedwa. Zitha kuwoneka kuti guluu wochuluka kwambiri kapena wochepa kwambiri ndi wosayenerera kusakaniza. Chifukwa chake, payenera kukhala guluu wosonkhanitsidwa pakati pa ma roller panthawi yosakaniza. Pakukanda, kumbali imodzi, ufawo umafinyidwa mu guluu ndi mphamvu yamakina. Zotsatira zake, nthawi yosakaniza imafupikitsidwa, mphamvu ya ntchito imachepa, ndipo mtundu wa rabara umakhala wabwino.
Nthawi yotumizira: Epulo-18-2022
