Tsarin gyare-gyaren kayan aikin filastik a cikin masana'antar kayan kwalliya an raba shi zuwa rukuni biyu: gyare-gyaren allura da gyare-gyaren busa.

Injection Molding

Menene tsarin gyaran allura?

Yin gyare-gyaren allura shine tsari na dumama da sanya filastik (dumi da narkewa a cikin ruwa, filastik), sa'an nan kuma yin amfani da matsa lamba don allurar shi a cikin wani wuri mai rufaffiyar, ƙyale shi ya kwantar da ƙarfi a cikin mold, don samar da samfurin tare da shi. siffa iri ɗaya da mold.Ya dace da yawan samar da sassa tare da siffofi masu rikitarwa.

Halayen tsarin gyaran allura:

1. Saurin samar da sauri, babban inganci, babban digiri na aiki da kai

2. Samfurin yana da babban madaidaici, kuma kuskuren bayyanar yana da ƙananan ƙananan

3. Mai ikon samar da sassa tare da siffofi masu rikitarwa

4. High mold kudin

Yawancin mukwalbar iska, kwalban ruwan shafa fuska biyuana samar da su ta hanyar allura.

Busa gyare-gyare

Halayen aikin gyaran busa:

Zana darussa daga tsarin busa gilashin gargajiya, gyare-gyaren busa yana amfani da iska mai matsakaita tare da wani matsa lamba don yin kumbura da sanyaya preform (jikin filastik tubular da aka gama da shi) a cikin ƙirar zuwa tsarin gyare-gyare don samfuran fashe.Ya dace da yawan samar da kwantena filastik mara kyau.

Menene halayen aikin gyaran busa?

1. Hanyar samar da sauƙi mai sauƙi, babban aikin samarwa da aiki da kai

2. Ƙananan daidaito daidai

3. Akwai wasu ƙuntatawa akan siffar samfurin

4. Low m kudin

Bisa ga matakai da matakai daban-daban na samarwa, ana iya raba gyare-gyaren busa zuwa nau'i uku: busa extrusion, busa allura, da busa allura.

Na farko yana matsi da busa.Kamar yadda sunan ke nunawa, busa extrusion yana da manyan matakai guda biyu: extrusion da busa gyare-gyare.

Mataki na farko shi ne extrude da parison-mold ƙulli.Na'urar extrusion na ci gaba da matsewa don samar da faɗuwar tubular parison.Lokacin da aka fitar da parison zuwa tsayin da aka kayyade, ana yanke saman parison zuwa tsayin da ya dace da yanki ɗaya, kuma ana rufe gyare-gyaren gefen hagu da dama.

Mataki na biyu, gabatarwar iska-datsa.An matse iska a cikin preform ta hanyar mandrel don yin busa.The parison a hankali adheres zuwa ciki bango na mold don kwantar da kuma siffar, da kuma samfurin da aka cire daga mold, da kuma na biyu trimming da aka yi.Farashin extrusion da busa kayan aiki da gyare-gyare yana da ƙananan ƙananan, kuma farashin samarwa yana da ƙananan ƙananan.

Sai dai kuma ana samun walƙiya a lokacin da ake aikin noma, kuma ana buƙatar gyara baki da kasan kwalbar da injina ko da hannu, wani lokaci kuma ana goge bakin kwalbar da gyarawa.

Fitattun kwalaben filastik da aka ƙera suna da layin rabuwa (fitowar layi) a ƙasa, kuma bakin kwalaben ba shi da santsi, don haka wasu suna da haɗarin zubar ruwa.Irin waɗannan kwalabe galibi ana yin su ne da kayan PE kuma ana amfani da su a cikin kayan kwalliya kamar kwalabe na kumfa, kayan shafa na jiki, shampoos da kwandishana.

Nau'i na biyu shine busa allura, wanda ke da manyan matakai guda biyu: gyare-gyaren allura.

Mataki na 1: Gabatar da rufewar allura-mold.

Yi amfani da tsarin gyare-gyaren allura don samar da parison mai ƙasa, kuma na'urar wasan bidiyo tana juya 120° zuwa hanyar haɗin gyare-gyare.

An rufe ƙirar, kuma ana shigar da iska mai matsewa a cikin parison ta cikin mazugi don gyare-gyaren busa.

Mataki 2: Gabatar da hauhawar farashin kaya-sanyi da lalata.

Bayan samfurin da aka busa ya warke gaba ɗaya kuma an gyare shi, na'urar wasan bidiyo tana juya 120° don rushe samfurin.Babu buƙatar trimming na biyu, don haka matakin sarrafa kansa da ingancin samarwa yana da girma.Domin ana busa kwalbar daga wani nau'in alluran da aka ƙera, bakin kwalaben yana kwance kuma kwalbar tana da kyawawan abubuwan rufewa, kamarTB07 jerin busa kwalban.

Nau'i na uku shine ja da busa bayanin kula.Ya kasu kashi uku: gyare-gyaren allura-miƙe-busa.

Daban-daban da nau'in jujjuyawar allurar busa, busa allura shine samar da layin taro.

Mataki na 1: Gabatar da rufewar allura-mold

Saka preform ɗin da aka yi ta allura a cikin nau'in bugun

Saka sandar shimfiɗa kuma rufe ƙirar hagu da dama

Mataki na 2: Miƙewa-Blowing-Cooling da tarwatsawa

Sanda mai mikewa yana mikewa a tsayi, yayin da ake allurar iska ta sandar mikewa don mikewa ta gefe.

Sanyaya da siffatawa, tarwatsawa da fitar da samfurin

Busa shimfiɗar allurar ita ce mafi inganci, daidaito da farashi a cikin tsarin gyare-gyaren bugun.

A halin yanzu, akwai hanyoyin samarwa guda biyu a cikin tsarin busawa mai shimfiɗa allura, wanda ake kira: Hanyar mataki ɗaya da hanyar mataki biyu.Ana kammala gyare-gyaren allura da gyare-gyaren busa tare ta hanyar mataki ɗaya, kuma matakan biyu an kammala su da kansu azaman hanyar mataki biyu.

Idan aka kwatanta da hanyar mataki biyu, hanyar mataki daya an kammala shi a cikin kayan aiki na mataki daya daga albarkatun kasa zuwa samfurin da aka gama.Tsarin samarwa yana da sauƙi kuma ba a yarda da dumama na biyu ba, don haka amfani da makamashi ya ragu.

Hanyar mataki-biyu na buƙatar allurar farko ta farko, sannan kuma aiki na biyu akan na'urar gyare-gyaren bugun.Busa gyare-gyare yana buƙatar dumama na biyu na preform mai sanyaya, don haka amfani da makamashi yana da yawa.

Yawancin bayanan sun fito ne daga sarkar samar da kyau na CiE