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Kukho iifayibha ezidadayo ngexesha leglasi yefayibha eqinisekisiweyo yenaliti yokubumba, yabelana ng

Enlarged font  Narrow font Release date:2021-04-12  Source:Izicelo zeplastiki zobunjineli  Browse number:323
Note: Le nto yaziwa njenge "ifayibha edadayo", engamkelekanga kumalungu eplastiki aneemfuno eziphezulu zokubonakala.

Ngexesha lenaliti yokubumba iglasi yefayibha eqiniswe ngeplastikhi, ukusebenza kwendlela nganye kuyinto eqhelekileyo, kodwa imveliso inezinto ezibonakalayo ukubonakala komgangatho, kwaye amanqaku amhlophe eradial aveliswa ngaphezulu, kwaye olu phawu lumhlophe luthanda ukuba lubi ngokwanda umxholo weglasi yefayibha. Le nto yaziwa njenge "ifayibha edadayo", engamkelekanga kumalungu eplastiki aneemfuno eziphezulu zokubonakala.

Uhlalutyo lwesizathu

Into ethi "ifayibha edadayo" ibangelwa kukuvezwa kwefayibha yeglasi. Ifayibha emhlophe yeglasi ibhencekile kumphezulu ngexesha lenkqubo yokunyibilika kunye nokuhamba kweplastiki. Emva kokujiyana, iyakwenza amanqaku amhlophe eradial kumphezulu wenxalenye yeplastiki. Xa icandelo leplastiki limnyama Xa umahluko wombala usonyuka, uyacaca ngakumbi.

Ezona zizathu ziphambili zokwakheka kwazo zezi zilandelayo:

1. Kwinkqubo yokunyibilika kokunyibilika kweplastikhi, ngenxa yomahluko kubumanzi kunye noxinano phakathi kwefayibha yeglasi kunye nentlaka, bobabini banotyekelo lokwahlulahlula. Ifayibha yeglasi exineneyo ephantsi idada ngaphezulu, kwaye i-denser resin iyazika kuyo. , Ke ngoko ifayibha yeglasi eveze into ebonakalayo yenziwa;

2. Ngenxa yokuba i-melt yeplastikhi ixhomekeke kukungqubana kunye namandla okucheba kwesikrufu, umlomo, imbaleki kunye nesango ngexesha lenkqubo yokuhamba, iya kubangela umahluko kwi-viscosity yendawo, kwaye kwangaxeshanye, iya kutshabalalisa umaleko wojongano umphezulu wefayibha yeglasi, kunye nokunyibilika kwe-viscosity kuya kuba kuncinci. , Okukhona ukonakala kumaleko ojongano, kokukhona kuncinci amandla okubopha phakathi kwefayibha yeglasi kunye nentlaka. Xa amandla okudibanisa amancinci kwinqanaba elithile, ifayibha yeglasi iya kususa ubukhoboka be-matrix ye-resin kwaye ngokuthe ngcembe iqokelele umphezulu kwaye ibhence;

3. Xa inyibilikisi yeplastikhi ingeniswe emqolombeni, iya kwenza "umthombo", oko kukuthi, ifayibha yeglasi iya kuhamba ukusuka ngaphakathi iye ngaphandle ize inxibelelane nomphezulu womngxunya. Ngenxa yokuba ubushushu bomphezulu womngundo buphantsi, ifayibha yeglasi ilula kwaye iyajiya ngokukhawuleza. Imisa kwangoko ngumkhenkce, kwaye ukuba ayinakujikelezwa ngokupheleleyo kukunyibilika kwexesha, iya kutyhilwa kwaye yenze "imicu edadayo".

Ke ngoko, ukwenziwa kwento "edadayo yefayibha" ayihambelani kuphela nokwakheka kunye neempawu zezinto zeplastiki, kodwa ikwayayanyaniswa nenkqubo yokubumba, enobunzima obukhulu kunye nokungaqiniseki.

Masithethe malunga nokuba ungayiphucula njani into "yefayibha edadayo" ngokwembono yefomula kunye nenkqubo.

Ukusebenza kwefomula

Eyona ndlela isetyenziswayo kukudibanisa izinto ezisasazekayo, izinto zokusasaza kunye nezinto zokuthambisa kwizinto zokubumba, kubandakanya ii-silane coupling agents, i-maleic anhydride graft compatibilizers, i-silicone powder, i-fatty acid lubricants kunye nezinye zasekhaya okanye ezingeniswayo Sebenzisa ezi zongezelelo ukuphucula ukuhambelana phakathi kwefayibha yeglasi kunye nentlaka, ukuphucula ukufana kwesigaba esasasaziweyo kunye nesigaba esiqhubekayo, ukwandisa amandla okubambisana kunye nokunciphisa ukwahlula kwefayili yeglasi kunye ne-resin. Ukuphucula ukubonakaliswa kwefayibha yeglasi. Ezinye zazo zineziphumo ezilungileyo, kodwa uninzi lwazo ziyabiza, zinyusa iindleko zokuvelisa, kwaye zichaphazela neempawu zoomatshini zezixhobo. Umzekelo, iiarhente zokuhlanganisa ulwelo ezisetyenziswa ngokuxhaphakileyo kunzima ukusasaza emva kokongezwa, kwaye iiplastiki kulula ukuzenza. Ingxaki yokwenziwa kwesigaqa iya kubangela ukondliwa okungalinganiyo kwezixhobo kunye nokusasazwa okungalinganiyo komxholo weglasi yefayibha, eya kuthi ikhokelele kwiimpawu zemveliso ezingalinganiyo.

Kwiminyaka yakutshanje, indlela yokongeza imicu emifutshane okanye ii-microspheres ezingenanto ziye zamkelwa. Imicu emifutshane emincinci okanye ii-microspheres ezingenanto zeglasi zineempawu zokucaca kakuhle kunye nokusasazeka, kwaye kulula ukwenza uzinzo lokunxibelelana okuzinzileyo nentlaka. Ukufezekisa injongo yokuphucula "ifayibha edadayo", ngakumbi iiglasi ezibuhlazarha nazo zinokunciphisa isantya sokuncipha kwe-shrinkage, kuthintele ukugoba kwemveliso emva, kunyusa ubulukhuni kunye ne-modulus yelog, kwaye ixabiso lisezantsi, kodwa ububi kukuba imathiriyeli yimpembelelo yokusebenza engahambelaniyo.

Inkqubo yokwenziwa kwenkqubo

Ngapha koko, ingxaki "yefayibha edadayo" inokuphuculwa ngenkqubo yokubumba. Izinto ezahlukeneyo zenkqubo yokubumba inaliti ineempembelelo ezahlukeneyo kwimveliso yeglasi yefayibha eqinisiweyo. Nantsi eminye imigaqo esisiseko enokulandelwa.

Ubushushu beCylinder

Kuba ukunyibilika kwenqanaba lokunyibilika kweglasi yefayibha yeplastiki eyi-30% ukuya kuma-70% isezantsi kuneplastikhi engaqiniswanga, ubumanzi bulungile, ke ngoko iqondo lobushushu bombhobho kufuneka libe li-10 ukuya kuma-30 ° C ngaphezulu kwesiqhelo. Ukwandisa ubushushu bombhobho kunokunciphisa i-viscosity ye-melt, kuphuculise ukunyibilika, kuthintele ukuzaliswa okungalunganga kunye ne-welding, kwaye kuncede ukwandisa ukusasazeka kwefayibha yeglasi kunye nokunciphisa ukuqhelaniswa, okukhokelela kubume obuphantsi bomgangatho wemveliso.

Kodwa iqondo lobushushu umphanda ayikho phezulu kangangoko kunokwenzeka. Amaqondo obushushu aphezulu kakhulu aya kwandisa imeko ye-polymer oxidation kunye nokuthotywa. Umbala uya kutshintsha xa umncinci, kwaye uya kubangela ukukhangela kunye nokumnyama xa kunzima.

Xa ucwangcisa iqondo lobushushu umphanda, iqondo lobushushu kwicandelo lokondla kufuneka libe ngaphezulu kancinci kunesidingo esiqhelekileyo, kwaye libe sezantsi kancinci kunecandelo lokucinezelwa, ukuze isebenzise umphumo wokucoca ubushushu ukunciphisa isiphumo sokucheba kwesikrufu kwifayibha yeglasi kunye nokunciphisa i-viscosity yendawo. Umahluko kunye nomonakalo kumphezulu wefayibha yeglasi uqinisekisa ukomelela phakathi kwefayibha yeglasi kunye nentlaka.

02 lobushushu Ikubumbe

Umahluko wobushushu phakathi kwesikhunta kunye nokunyibilika akufuneki ubemkhulu kakhulu ukuthintela ifayibha yeglasi ekuthambekeni komphezulu xa unyibilika kubanda, usenza "imicu edadayo". Ke ngoko, kufuneka ubushushu obuphezulu besikhunta, obuluncedo ekuphuculeni ukunyibilika kokugcwalisa ukusebenza kunye nokwanda Kuyanceda ukuwelda amandla omgca, ukuphucula ukugqitywa komphezulu wemveliso, kunye nokunciphisa ukujolisa kunye nokuqhafaza.

Nangona kunjalo, ukuphakama kobushushu be-mold, ixesha elide lokupholisa, ixesha elide umjikelezo wokubumba, ukuhla kwemveliso, kunye nokuphakanyiswa kwe-shrinkage ephezulu, ngoko ukuphakama akuyona into engcono. Ukucwangciswa kobushushu besikhunta kufuneka kuthathelwe ingqalelo iindidi ezahlukeneyo, ubume besikhunta, umxholo weglasi yefayibha, njl.Xa isithuba sinzima, umxholo wefayibha yeglasi uphezulu, kwaye ukuzaliswa komngundo kunzima, ubushushu besikhunta kufuneka bonyuswe ngokufanelekileyo.

Uxinzelelo ngenaliti ye-03

Uxinzelelo lwenaliti lunefuthe elikhulu ekubunjweni kweglasi yefayibha eqinisiweyo yeplastikhi. Uxinzelelo oluphezulu lwenaliti lulungele ukugcwaliswa, ukuphucula ukusasazeka kweglasi nefayibha kunye nokunciphisa ukuncipha kwemveliso, kodwa kuyonyusa uxinzelelo lwe-shear kunye nokuziqhelanisa, kubangele ngokulula ukujijisana kunye nokuqhekeka, kunye nokonakalisa ubunzima, kude kukhokelele kwiingxaki zokuphuphuma. Ke ngoko, ukuphucula into "yefayibha edadayo", kuyimfuneko ukonyusa uxinzelelo lwenaliti ngaphezulu kancinci kunexinzelelo lwenaliti yeplastikhi engafakwanga yomelele ngokwemeko ethile.

Ukukhethwa koxinzelelo lwenaliti akuhambelani kuphela nobungakanani bemveliso yodonga, ubungakanani besango kunye nezinye izinto, kodwa zikwanxulumene nomxholo weglasi yefayibha kunye nemilo. Ngokubanzi, ukuphakama komxholo weglasi yefayibha, kokukhona ubude beglasi yefayibha, kokukhona uxinzelelo lwenaliti kufuneka lube lukhulu.

Uxinzelelo lwe-04 yangasemva

Ubungakanani besixhobo sokubuya koxinzelelo sinefuthe elibalulekileyo kukusasazeka kwefayibha yeglasi kunyibilike, ukunyibilika kokunyibilika, uxinizelelo lonyibilike, umgangatho wokuvela kwemveliso kunye neempawu ezibonakalayo nezomatshini. Kuhlala kungcono ukusebenzisa uxinzelelo oluphezulu lwangasemva. , Uncedo ukuphucula imeko "yefayibha edadayo". Nangona kunjalo, uxinzelelo oluphezulu kakhulu lomqolo luya kuba nefuthe elikhulu lokucheba kwimicu emide, iyenze inyibilike ngokulula ngenxa yokufudumeza kakhulu, okukhokelela kumbala kunye neepropathi ezimbi zomatshini. Ke ngoko, uxinzelelo lwangasemva lunokusetwa ngaphezulu kancinci kunaleyo yeplastiki engaqiniswanga.

Isantya senaliti ye-05

Sebenzisa isantya senaliti ngokukhawuleza kunokuphucula imeko "yefayibha edadayo". Yandisa isantya senaliti, ukuze iglasi yefayibha eqiniswe ngeplastikhi izalise ngokukhawuleza isikhunta, kwaye ifayibha yeglasi yenza intshukumo ekhawulezayo ye-axial ecaleni kwendlela yokuhamba, okuluncedo ekwandiseni ukusasazeka kwefayibha yeglasi, ukunciphisa ukuqhelaniswa, ukuphucula amandla yomgca we-weld kunye nokucoceka komphezulu kwemveliso, kodwa kufuneka kuthathelwe ingqalelo ukunqanda "ukutshiza" ngemilomo okanye esangweni ngenxa yesantya esirhabaxa sokufaka, ukwenza iziphene zenyoka kunye nokuchaphazela ukubonakala kwenxalenye yeplastiki.

06 isantya sokujija

Xa ukufakelwa kweglasi yefayibha yeplastikhi eqinisiweyo, isantya se-screw akufuneki sibe phezulu kakhulu ukunqanda ukungqubana okugqithisileyo kunye namandla okucheba aya konakalisa ifayibha yeglasi, atshabalalise imeko yomda wobuso beglasi yefayibha, anciphise amandla okubopha phakathi kweglasi yefayibha kunye nentlaka , kunye nokwenza mandundu "ifayibha edadayo". "I-Phenomena, ngakumbi xa ifayibha yeglasi inde, kuya kubakho ubude obungalinganiyo ngenxa yenxalenye yokuqhekeka kweglasi yefayibha, okukhokelela kumandla angalinganiyo eeplastikhi kunye neepropathi zozinzo ezingazinzanga zemveliso.

Inkqubo yesishwankathelo

Ngolu hlalutyo lungentla, kunokubonwa ukuba ukusetyenziswa kobushushu obuphezulu bezinto eziphathekayo, ubushushu obuphezulu besikhunta, uxinzelelo oluphezulu lwenaliti kunye noxinzelelo lwangasemva, isantya esiphezulu senaliti, kunye nenaliti yesantya se-screw kulunge ngakumbi ukuphucula imeko "yefayibha edadayo".


 
 
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