Menene bambanci tsakanin gyaran allura da gyare-gyaren busa?

Menene bambanci tsakanin gyaran allura da gyare-gyaren busa?

1. Tsarin gyaran allura da gyare-gyaren busa ya bambanta.Busa gyare-gyare shine allura + busa;gyare-gyaren allura shine allura + matsa lamba;gyare-gyaren busa dole ne ya kasance da kan bututun busa ya bar kansa, kuma gyare-gyaren allura dole ne ya kasance da sashin Ƙofar

2. Gabaɗaya magana, yin gyare-gyaren allura wani ƙarfi ne mai ƙarfi, gyare-gyaren busa shi ne ƙwanƙwasa ƙwanƙwasa, kuma bayyanar busa ba daidai ba ce.Busa gyare-gyare yana da tashar jiragen ruwa mai hurawa.

3. Yin gyare-gyaren allura, wato thermoplastic injection gyare-gyare, wanda aka narkar da kayan filastik sa'an nan kuma allura a cikin rami na fim.Da zarar narkakkar robobin ya shiga cikin kwandon, sai a sanyaya shi ya zama siffa mai kama da rami.Siffar da ake samu sau da yawa ita ce samfurin ƙarshe kuma ba a buƙatar ƙarin aiki kafin kayan aiki ko amfani azaman samfur na ƙarshe.Dalla-dalla da yawa, kamar shuwagabanni, haƙarƙari, da zaren zare, ana iya yin su a cikin aikin gyaran allura guda ɗaya.Na'urar gyare-gyaren allura tana da abubuwa guda biyu: na'urar allura da ke narkewa da ciyar da robobin a cikin gyaggyarawa, da na'urar matsawa.Tasirin kayan aikin mold shine:

1) An rufe ƙirar a ƙarƙashin yanayin karɓar matsa lamba;

2) Cire samfurin daga cikin kayan aikin allura don narkar da robobi kafin a yi masa allura, sannan sarrafa matsa lamba da sauri don allurar narke a cikin injin.Akwai nau'ikan kayan aikin allura iri biyu da ake amfani da su a yau: dunƙule pre-plasticizer ko kayan aiki mai mataki biyu, da kuma juzu'i mai maimaitawa.Screw pre-plasticizers suna amfani da dunƙule pre-plasticizing (mataki na farko) don allurar narkakken robo a cikin sandar allura (mataki na biyu).Fa'idodin screw pre-plasticizer sune ingantaccen narke, babban matsa lamba da babban sauri, da daidaitaccen sarrafa ƙarar allura (ta amfani da na'urorin tura injina a ƙarshen bugun bugun piston).

Ana buƙatar waɗannan fa'idodin don bayyanannun, samfuran bangon bakin ciki da ƙimar samarwa mai girma.Lalacewar sun haɗa da lokacin zama marasa daidaituwa (wanda ke haifar da lalata kayan aiki), tsadar kayan aiki da farashin kulawa.Na'urorin allurar da aka fi amfani da su na juzu'i ba sa buƙatar mai narke da allurar filastik.

Busa gyare-gyare: wanda kuma aka sani da gyare-gyaren busa, busa gyare-gyare, hanyar sarrafa filastik mai saurin tasowa.The tubular roba parison samu ta extrusion ko allura gyare-gyare na thermoplastic guduro ana sanya shi a cikin tsaga mold yayin da yake zafi (ko mai tsanani zuwa wani taushi yanayi), da kuma matsawa iska da aka gabatar a cikin parison nan da nan bayan rufe mold don busa filastik parison. .Yana faɗaɗa kuma yana manne kusa da bangon ciki na mold, kuma bayan sanyaya da lalata, ana samun samfuran ramukan daban-daban.Tsarin samar da fim ɗin busa yana da kama da ka'ida don busa gyare-gyaren samfuran m, amma ba ya amfani da ƙira.Daga hangen nesa na rarrabuwar fasahar sarrafa filastik, tsarin gyare-gyare na fim ɗin busa yawanci ana haɗa shi cikin extrusion.An fara amfani da tsarin gyare-gyaren busa don samar da kwalabe na polyethylene mara nauyi a lokacin yakin duniya na biyu.A ƙarshen 1950s, tare da haifuwar polyethylene mai girma da haɓaka injunan gyare-gyare, an yi amfani da ƙwarewar gyare-gyaren busa sosai.Adadin kwantena mara kyau na iya kaiwa dubban lita, kuma wasu samarwa sun karɓi sarrafa kwamfuta.Filastik ɗin da suka dace da gyare-gyaren busa sun haɗa da polyethylene, polyvinyl chloride, polypropylene, polyester, da sauransu, kuma ana amfani da kwantena mara ƙarfi da aka samu a matsayin kwantena na masana'antu.