Wadannan mahimman ka'idoji ne da ya kamata a kiyaye su game da extrusion.Ya kamata su taimaka wajen adana kuɗi, samar da samfurori masu inganci, da amfani da kayan aiki da kyau.
7. Kudin wutar lantarki ba shi da mahimmanci.
Duk da shaharar sha'awa da kuma ainihin matsalolin da ke kan matakin shuka tare da hauhawar farashin wutar lantarki, ikon da ake buƙata don gudanar da extruder har yanzu yana da ɗan ƙaramin rabo na jimlar farashin masana'anta.Wannan zai kasance koyaushe saboda farashin kayan yana da yawa sosai, mai fitar da kayan aiki shine ingantaccen tsari, kuma idan aka gabatar da kuzarin da ya wuce kima robobin zai yi zafi sosai don sarrafa shi yadda ya kamata.
8. Matsa lamba a tip ɗin dunƙule yana da mahimmanci.
Wannan matsa lamba yana nuna juriya ga duk abin da ke ƙasa na dunƙule: fuska da gurɓatawa, farantin mai karyawa, adaftar, bututun canja wuri, masu haɗawa a tsaye (idan an yi amfani da su), da mutun kanta.Ya dogara ba kawai a kan lissafi na waɗannan sassan ba, har ma a kan yanayin zafi a cikin tsarin, wanda hakan ya shafi resin danko da ƙimar kayan aiki.Ba ya dogara da ƙirar dunƙule ba, sai dai kamar yadda yake rinjayar zafin jiki, danko, da kayan aiki.
Aunawa matsa lamba yana da mahimmanci don dalilai na aminci-idan ya yi tsayi da yawa, kai da mutuwa na iya busa su ji rauni ko lalata mutane ko injuna a kusa.
Matsi yana da kyau don haɗuwa, musamman a cikin yanki na ƙarshe (mita) a cikin tsarin dunƙule guda ɗaya.Duk da haka, matsi mafi girma kuma yana nufin ana ɗaukar ƙarin makamashi ta hanyar motar-don haka mafi girma narke zafin jiki-wanda zai iya nuna iyakar matsa lamba.A cikin tagwayen sukurori, tsaka-tsakin sukurori biyu shine mafi inganci mahaɗa, don haka ba a buƙatar matsa lamba don wannan dalili.
A cikin yin abubuwa mara kyau, irin su bututu mai gizo-gizo mutu wanda ke amfani da makamai don riƙe tsakiyar tsakiya a wurin, dole ne a haifar da babban matsin lamba a cikin mutu don taimakawa raƙuman raƙuman ruwa su sake haɗa juna.In ba haka ba, samfurin na iya zama mai rauni tare da waɗannan layukan weld kuma zai iya kasa aiki.
9. Fitowa = ƙaura daga jirgin na ƙarshe, +/- matsa lamba da yabo.
Matsar da jirgin na ƙarshe ana kiransa ɗigon ja, kuma ya dogara ne kawai akan juzu'i na juzu'i, saurin murƙushewa, da narke mai yawa.An canza shi ta hanyar matsa lamba, wanda gaske ya ƙunshi tasirin juriya (wanda aka nuna ta matsa lamba) don rage fitarwa, da kuma tasirin duk wani abu mai yawa a cikin abinci don ƙara yawan fitarwa.Yayyo kan jiragen na iya kasancewa ta kowane bangare.
Hakanan yana da amfani don ƙididdige fitarwa a kowace rpm, saboda wannan yana nuna duk wani lalacewa na iya yin famfo na screw tare da lokaci.Wannan shine inganci kuma yana ba da damar ƙididdige ƙarfin samar da injin da aka bayar.
10. Yawan shear yana taka muhimmiyar rawa a cikin danko.
Duk robobi na yau da kullun suna da ƙarfi - baƙar fata, wanda ke nufin cewa danko yana raguwa yayin da filastik ke tafiya da sauri da sauri.Wasu robobi suna nuna wannan tasiri sosai.Wasu PVCs, alal misali, suna gudana sau 10 ko fiye da sauri tare da ninki biyu na turawa.LLDPE, da bambanci, ba ya juye-baƙin ciki da yawa, kuma wannan ninki biyu na ƙarfin turawa yana ƙara kwarara ta sau uku zuwa huɗu kawai.Ƙarƙashin raguwa-ƙarar tasiri yana nufin mafi girman danko a yanayin extrusion, wanda hakan yana nufin ana buƙatar ƙarin ƙarfin mota.Wannan yana bayyana dalilin da yasa LLDPE ke tafiyar da zafi fiye da LDPE.
Ana bayyana kwarara cikin yanayin juzu'i, wanda ke kusa da 100 sec -1 a cikin tashoshi na dunƙule, tsakanin 100 da 1000 sec-1 a mafi yawan mutuwar lebe, kuma fiye da 1000 sec -1 a cikin izinin tafiya zuwa bango da wasu. kananan gibin mutuwa.Fihirisar narkewa shine ma'auni gama gari na danko amma yana jujjuyawa (watau kwarara/turawa maimakon turawa).Abin baƙin cikin shine, ana auna shi a ƙimar juzu'i na 10 sec -1 ko ƙasa da haka kuma maiyuwa ba zai zama ma'auni na gaskiya ba a cikin extruder inda narkewa ke gudana da sauri.
11. Motar na adawa da ganga, ganga na adawa da motar.
Na fara da mahimman ka'idoji guda 10 na extrusion, amma wannan yana da mahimmanci don haka dole in haɗa shi ma.Doka ta goma sha ɗaya shine dalilin da yasa sarrafa ganga ba koyaushe yake yin tasiri kamar yadda ake so ko ake tsammani ba, musamman a yankin aunawa.Idan ganga ya yi zafi, Layer na kayan da ke bangon ganga ya zama ƙasa da danko kuma motar tana buƙatar ƙarancin ƙarfi don kunna wannan ganga mai mai.Motar halin yanzu (amps) yana raguwa.Akasin haka, idan ganga ya sanyaya, narke a bangon ganga ya zama mai danko, dole ne motar ta yi aiki tuƙuru, amps ya tashi, kuma wasu zafin da aka cire ta ganga an sake mayar da shi ta hanyar mota.Yawancin lokaci, masu kula da ganga suna da tasiri akan narkewar da ake so, amma babu inda kamar yadda yankin ya canza adadin.Zai fi kyau a auna zafin narke don fahimtar ainihin abin da ke faruwa.
Lokacin aikawa: Mayu-27-2017