Kulankhulansalu ya spunbond yopanda nsalu, aliyense ayenera kuchidziŵa chifukwa chakuti kagwiridwe kake kakugwiritsiridwa ntchito n’chotambalala kwambiri tsopano, ndipo pafupifupi chimagwiritsiridwa ntchito m’mbali zambiri za miyoyo ya anthu. Ndipo zida zake zazikulu ndi poliyesitala ndi polypropylene, kotero nkhaniyi imakhala ndi mphamvu zabwino komanso kutentha kwambiri. Nsalu zosalukidwa zosalukidwa ndi mtundu wa nsalu zosalukidwa zomwe zimapangidwa ndi ma polima otuluka ndi kutambasula kuti apange ulusi wosalekeza, womwe umayikidwa muukonde ndikumangirira kudzera munjira yakeyake yotentha, mankhwala, kapena makina. Lili ndi ntchito zambiri, ndipo anthu amadziwa bwino matumba omwe sialukidwe, osavala, ndi zina zotero. Ndipo ndizosavuta kuzizindikira, nthawi zambiri zimakhala ndi kulimba kwa mbali ziwiri, ndipo malo ake ozungulira amakhala ngati diamondi.
Kuchuluka kwa ntchito
Ntchito mlingo waspunbond sanali nsalu nsaluitha kugwiritsidwanso ntchito ngati gawo lopangira maluwa ndi nsalu zatsopano zomangira, ndi zina zambiri. Ndipo imagwiritsidwanso ntchito kwambiri mu nsalu zokolola zaulimi. Amakhalanso ndi zinthu zotayidwa m'zachipatala ndi m'mafakitale, zomangira mipando, ndi zaukhondo kuhotelo. Choncho. Nsalu zomatira zotsanzira zopanda nsalu zimakhala ndi masikelo osiyanasiyana ndipo zimapangidwa pogwiritsa ntchito zojambula zabwino. Chifukwa cha njirayi, maukonde olimba amalumikizidwa, ndipo zinthu zopangidwa pogwiritsa ntchito fani yoyamwa zimakhala zowawa kwambiri, zomwe zimapangitsa kuti minyewa isakwane nthawi imodzi. Izi ndichifukwa chake, sizingatheke kupanga zinthu zopitilira 120 magalamu pa lalikulu mita.
Momwe mungapangire nsalu zopanda nsalu
Ndipo njira yopanga imatha kusinthidwa mosavuta. Bokosi lozungulira la mzere wopangira mgwirizano lidzagwiritsa ntchito mapampu ambiri odziyimira pawokha kuti ayese kusungunuka. Ndipo pampu iliyonse ya metering imapereka kuchuluka kwazinthu zingapo zozungulira. Chifukwa cha izi, pampu yoyezera metering imatha kuyimitsidwa molingana ndi zomwe kasitomala akufuna pakupanga, ndiyeno kugwedezeka kwa makina opangira nsalu kumatha kusinthidwa kuti apange zinthu zomaliza mosiyanasiyana. Kuonjezera apo, pamene zizindikiro zina za zinthu zomwe zatsirizidwa sizikukwaniritsa miyezo, zigawo zofananira za nsalu zimatha kusinthidwa kuti zisinthidwe.
Kodi njira yoyambira yoyambira ndi chiyanispunbond nonwoven nsalu?
1. Kudula ndi kuphika
Ziphuphu za polima zomwe zimapezedwa kudzera mu granulation ndi kuponyera malamba opatsirana nthawi zambiri zimakhala ndi chinyontho china, chomwe chimafunika kuumitsidwa ndikuchotsedwa musanawote.
2. Kupota
Zida zopota ndi ukadaulo zomwe zimagwiritsidwa ntchito munjira ya spunbond ndizofanana ndi zomwe zimagwiritsidwa ntchito popota ulusi wamankhwala. Zida zazikulu ndi zowonjezera ndi screw extruders ndi spinnerets.
3. Tambasulani
Ulusi womwe wangopangidwa kumene kuti usungunuke (ulusi woyambira) uli ndi mphamvu zochepa, utalikirapo, mawonekedwe osakhazikika, ndipo alibe ntchito yofunikira pakukonza nsalu, yomwe imafunikira kutambasula.
4. Filamentation
Zomwe zimatchedwa kugawanika kumatanthauza kulekanitsa mitolo ya ulusi wotambasuka kukhala ulusi umodzi kuti ulusi usamamatire kapena kuluka panthawi yopanga ukonde.
5. Kuyala ukonde
(1) Kuwongolera mpweya
(2) Kupewa ndi kuwongolera makina
(3) Pambuyo kutambasula ndi kugawanika, filament iyenera kuikidwa mofanana pa nsalu yotchinga.
6. Khoka loyamwa
Pogwiritsa ntchito maukonde oyamwa, mpweya wopita pansi ukhoza kunyamulidwa ndipo kukokanso kungathe kulamuliridwa. Chifukwa chake, pansi pa katani kansalu kansaluyo pali mbale yokhuthala ya 20 centimita yokhuthala yopingasa kuti mpweya usawombe pa mauna. Zodzigudubuza zotetezedwa ndi mphepo zimakonzedwa pamalire akukoka kutsogolo kwa mauna a fiber. Chogudubuza chapamwamba chimakhala ndi mainchesi okulirapo, ndi osalala pang'ono, ndipo chimakhala ndi mpeni woyeretsera kuti chodzigudubuza chitha kukodwa. Wodzigudubuza wapansi amakhala ndi mainchesi ang'onoang'ono ndipo nthawi zambiri amamatira ndi zodzigudubuza za rabala kuti apange nsalu yotchinga. Dongosolo lothandizira loyamwa limayamwa mwachindunji mu neti ya airflow, motero imawongolera ukonde wa fiber kuti ugwirizane ndi nsalu yotchinga.
7. Kulimbikitsa
Kulimbitsa ndi njira yomaliza, yomwe imathandizira mauna kukhala ndi mphamvu, kutalika, ndi zina kuti zikwaniritse zofunikira zamalonda.
Ngati kupuma kumakhala kosauka, gulu lozungulira lokhala ndi mabowo ochepa pa spinneret likhoza kusinthidwa, zomwe zingathe kuwonjezera mpweya wa nsalu pamwamba. Tsopano, kuthamanga kwa mpweya kwa silinda yowongoka ya njira imodzi kungasinthidwenso kuti mawonekedwe akuthupi a m'lifupi mwake akhale ofanana. Kulimba kwa lateral kwa nsalu zosalukidwa za spunbond ndizokwera kwambiri, ndipo njira yopota imagwiritsa ntchito njira ya nsalu kupanga ukonde. Tsambalo limangogwedezeka mobwereza bwereza pafupipafupi 750Hz, ndipo ulusi wotambasula wothamanga kwambiri umagundana ndi mauna.
Mphamvu yansalu ya spunbondndizokwera kwambiri chifukwa nsalu yotchinga ya mauna imapita patsogolo mwa diagonally ndi interlaces. Kuyimirira ndi kopingasa kwa zolemba kumatha kufika pa 1: 1. Nthawi zambiri, kuyerekezera kumagwiritsa ntchito chokwera cha Venturi, koma mphamvu zake sizokwera kwambiri, ndipo mphamvu yayitali komanso yopingasa ndi yamphamvu kwambiri. Ulusi wa nsalu zosalukidwa pamawebusayiti ali ndi kukana kwabwino kwa kutentha kwambiri komanso kukana kuvala, ndipo mphamvu zawo zamakina ndizokulirapo kuposa ulusi wa PP.
Ndi chiyani chomwe chiyenera kutsatiridwa panthawi yogubuduza nsalu zopanda nsalu za spunbond?
1. Panthawi yokhotakhota, dziwani kuwongolera kwamphamvu kwa nsalu za spunbond zosalukidwa.
2. Pamene mavuto ukuwonjezeka mkati osiyanasiyana osiyanasiyana, m'mimba mwake ndi m'lifupi mwampunbond nonwoven rollkuchepa.
3. Pamene kukangana kumawonjezeka mkati mwamtundu wina, kumatha kuwonjezeka. Zosowa zenizeni za zovuta zomwe zili pamwambazi ziyenera kufotokozedwa mwachidule muzopanga zenizeni kuti zitsimikizire khalidwe.
4. Pa nthawi yopanga, tcherani khutu nthawi zonse kuyang'ana m'lifupi ndi mpukutu kutalika kwa spunbond sanali nsalu nsalu.
5. Phubu la pepala ndi mpukutu wa nsalu za spunbond zosalukidwa ziyenera kulumikizidwa.
6. Samalani kuyang'ana kwa maonekedwe a nsalu zopanda nsalu za spunbond, monga kudontha, kusweka, kung'ambika, ndi zina zotero.
7. Phatikizani molingana ndi zofunikira zopanga, tcherani khutu ku ukhondo, ndikuwonetsetsa kuti zotengerazo ndizolimba.
8. Kuyesa ndi kuyesa gulu lililonse la nsalu za spunbond zopanda nsalu.
Nthawi yotumiza: Jan-30-2024