A cikin aiwatar da busa sarrafa gyare-gyare, menene manyan abubuwan da zasu shafi samfurin?

A cikin aiwatar da aikin sarrafa gyaggyarawa, abubuwan da za su shafi samfurin sun haɗa da busa matsa lamba, saurin busawa, rabon busa da busa zazzabi.

Busa gyare-gyaren gyare-gyare

1. A cikin aikin busawa, matsewar iskar tana da ayyuka guda biyu: na ɗaya shine yin amfani da matsi na iskar da aka matsa don sa bututun bututun da aka narkar da shi ya yi busa da kuma manne da bangon kogon ƙura don samar da siffar da ake so;Na biyu, yana taka rawar sanyaya a cikin Dongguan busa gyare-gyaren samfuran.Matsin iska ya dogara da nau'in filastik da zafin jiki na billet, gabaɗaya ana sarrafa shi a cikin 0.2 ~ 1.0mpa.Don robobi tare da ƙananan danko mai narkewa da sauƙi na lalacewa (kamar PA da HDPE), ɗauki ƙananan ƙimar;Don robobin da ke da ɗanko mai girma (kamar PC), ana ɗaukar ƙima mafi girma, haka ma kaurin bangon billet ɗin.Har ila yau matsin lamba yana da alaƙa da ƙarar samfuran, manyan samfuran girma yakamata suyi amfani da matsa lamba mafi girma, ƙananan samfuran ƙarar yakamata suyi amfani da ƙaramin busawa.Mafi dacewa matsa lamba mai busawa yakamata ya iya bayyana bayyanar da ƙirar samfurin bayan ƙirƙirar.

2, saurin busawa don rage lokacin busawa, don haka ya dace da samfurin don samun ƙarin kauri mai ɗaci da mafi kyawun bayyanar, buƙatun ƙarancin saurin gudu zuwa cikin babban kwararar iska, don tabbatar da cewa billet a cikin mold cavity na iya zama iri ɗaya, saurin faɗaɗawa, rage lokacin sanyaya a cikin kogon ƙura, kuma yana da kyau don haɓaka aikin samfur.Ƙarƙashin saurin iska yana iya guje wa wani nau'in tasirin Venduri a cikin billet da samuwar vacuum na gida, ta yadda billet ɗin ya lalace.Ana iya tabbatar da hakan ta hanyar amfani da bututu mai girma.

3, rabon busa lokacin da girman da ingancin billet ya tabbata, girman girman samfurin, mafi girman rabon busa billet, amma mafi ƙarancin kauri na samfurin.Yawancin lokaci bisa ga nau'in filastik, yanayi, siffar da girman samfurin, da girman girman billet don ƙayyade girman rabon busawa.Tare da haɓakar haɓakar busawa, kauri daga cikin samfurin ya zama bakin ciki, kuma ƙarfi da ƙarfi suna raguwa.Yana kuma zama da wuya a samu.Gabaɗaya, ana sarrafa rabon busawa a cikin l2-4) ko fiye.

4. Yanayin zafin jiki na gyare-gyaren gyare-gyare yana da babban tasiri akan ingancin samfurori (musamman ingancin bayyanar).Yawanci rarraba zafin jiki na mold ya kamata ya zama iri ɗaya, gwargwadon yuwuwar yin sanyaya samfurin iri ɗaya.Yanayin zafin jiki yana da alaƙa da nau'in filastik, kauri da girman samfuran.Don nau'ikan filastik daban-daban, akwai ƴan robobi (kwalba mai gyare-gyare na PC) ya kamata a sarrafa zafin jiki a cikin sassan.

Ayyukan samarwa ya tabbatar da cewa zafin jiki na mold ya yi ƙasa sosai, to, an rage elongation na filastik a cikin shirin, ba shi da sauƙi a busa, don haka samfurin ya karu a cikin wannan ɓangaren, kuma yana da wuya a samar da shi, kuma kwane-kwane da tsarin saman samfurin ba su bayyana ba;Yawan zafin jiki na mold ya yi yawa, lokacin sanyaya yana tsawaita, ana ƙara zagayowar samarwa, kuma an rage yawan aiki.A wannan lokacin, idan sanyaya bai isa ba, zai kuma haifar da nakasar samfurin, raguwar raguwar ya karu, kuma hasken saman ya fi muni.Gabaɗaya don robobi tare da rigidity mafi girman sarkar kwayoyin halitta, zafin jiki ya kamata ya zama mafi girma;Don robobi tare da manyan sarƙoƙi masu sassauƙa, ya kamata a rage yawan zafin jiki.

Samfuran gyare-gyaren busa mai fa'ida a cikin lokacin sanyaya mold yana da tsayi, manufar ita ce tabbatar da cewa samfurin ya yi sanyi sosai, yana lalata ba tare da nakasawa ba.Lokacin sanyaya gabaɗaya ya dogara da kauri, girma da siffar filastik, da kuma nau'in filastik.Girman bangon, mafi tsayi lokacin sanyaya.Lokacin sanyaya na samfuran 61PE tare da ƙayyadaddun ƙarfin zafi ya fi tsayi fiye da na samfuran PP tare da ƙaramin ƙayyadaddun ƙarfin zafi na kauri ɗaya na bango.

5. Molding sake zagayowar Busa gyare-gyaren samar da sake zagayowar ya hada da extrusion billet, mutu rufewa, yanke billet, hurawa, deflating, bude mold, shan fitar da kayayyakin da sauran matakai.Manufar wannan zaɓen sake zagayowar shine a gajarta gwargwadon iko a ƙarƙashin yanayin tabbatar da cewa samfurin zai iya siffata ba tare da nakasu ba, don haɓaka haɓakar samarwa.