Ii-extruders ezimbini zee-screw zezona matshini zisebenza kakhulu kwicandelo lokudibanisa, kwaye ukusebenza kwazo okuphezulu kunye nokukwazi ukuzenza ngokwezifiso zezona zibonelelo zesikhundla sazo. Zingadibanisa izongezo ezahlukeneyo kunye nezizalisi ukuze kufezekiswe iimilo ezahlukeneyo zepellet kunye neempawu ezahlukeneyo zokusebenza.
Nangona iintlobo ngeentlobo zezongezo kunye nezizalisi zinokucutshungulwa ukuze zikhutshwe, ezinye iindlela zokufumana ezi mveliso zinokubangela imiba yongcoliseko kunye nokuhamba okuphantsi okanye uxinzelelo oluphantsi kwiindawo ezininzi kulo lonke ibharele.
Kwinkqubo eqhubekayo efana nokukhupha umoya, ungcoliseko lunokuba nefuthe elibi. Ukukhupha umoya ongcolileyo kudla ngokuba nzima ngakumbi kunezinye iinkqubo, kwaye izixhobo zokukhupha umoya ezinamacala amabini zijongene nemingeni emikhulu kuba inkqubo iyinkimbinkimbi kunesixhobo sokukhupha umoya esinamacala amabini.
Okokuqala, makhe sijonge iindlela zokucoca izixhobo zokukhupha izinto ezinezikrufu ezimbini.
Indlela yokucoca i-resin:
Ukusebenzisa i-polyester resin okanye i-epoxy resin ekucoceni kudla ngokusetyenziswa ekucoceni izixhobo ezintsha okanye emva kokuba i-extruder isetyenzisiwe ixesha elithile, kuba ezinye izinto zihlala kwi-screw okanye kwi-barrel nakwi-gel, isantya sokukhupha izinto siyacotha, kwaye umahluko wombala wotshintsho lombala mkhulu. Le ndlela ingasetyenziswa. Namhlanje, ngenxa yoqoqosho oluphuhlileyo lweempahla, akukho kunqongophala kwezixhobo ezahlukeneyo zokucoca izikrufu (izinto zokucoca izikrufu) kwimarike, uninzi lwazo lubiza kakhulu kwaye luneziphumo ezahlukeneyo.
Ukuba kufuneka kusetyenziswe izicoci zorhwebo kuxhomekeke kubavelisi abahlukeneyo kunye neemeko zemveliso; iinkampani zokucubungula iplastiki zingasebenzisa neeresini ezahlukeneyo njengezixhobo zokucoca izikrufu ngokweemeko zazo zemveliso, nto leyo enokonga iindleko ezininzi zeyunithi.
Inyathelo lokuqala ekucoceni isikrufu kukucima iplagi yokuphakela, oko kukuthi, ukuvala i-feed port ezantsi kwe-hopper; uze unciphise isantya sesikrufu siye kwi-15-25r/min kwaye ugcine esi santya de ukunyibilika komphezulu ongaphambili we-die kuyeke ukuhamba. Ubushushu bazo zonke iindawo zokufudumeza ze-barrel kufuneka bubekwe kwi-200°C. Nje ukuba i-barrel ifikelele kolu bushushu, qalisa ukucoca ngoko nangoko.
Ngokuxhomekeke kwinkqubo yokukhupha (kusenokufuneka ukususa idayisi ukuze kuncitshiswe umngcipheko woxinzelelo olugqithisileyo kwicala elingaphambili le-extruder), ukucoca kufuneka kwenziwe ngumntu omnye: umqhubi ujonga isantya sesikrufu kunye ne-torque evela kwiphaneli yokulawula, kwaye ujonge uxinzelelo lokukhupha ukuqinisekisa ukuba uxinzelelo lwenkqubo aluphezulu kakhulu. Ngexesha lonke le nkqubo, isantya sesikrufu kufuneka sigcinwe ngaphakathi kwe-20r/min. Xa kusetyenziswa iintloko zesikrufu ezinoxinzelelo oluphantsi, musa ukususa intloko yesikrufu ukuze ucoce kuqala. Misa kwaye ususe intloko yesikrufu ngoko nangoko xa i-extrudate iguqulwe ngokupheleleyo ukusuka kwi-processing resin ukuya kwi-cleaning resin, uze uqalise kwakhona isikrufu (isantya ngaphakathi kwe-10r/min) ukuvumela i-resin yokucoca eseleyo ukuba iphume.
Isikhokelo sokuqhaqha:
1. Yongeza ngesandla izinto zokuhlamba ukusuka kwindawo yokukhupha ude umbala westrip yezinto ezikhutshiweyo ufane noweepellets zezinto zokuhlamba, yeka ukondla, khupha izinto, kwaye uyeke ukujikeleza kweskrubhu ye-extruder enezikrufu ezimbini;
2. Vula intloko ye-screw extruder die uze uqale ukucoca;
3. Jika isikrufu sokukhupha isikrufu esinezikrufu ezimbini uze ususe ipleyiti ye-orifice ukuze ukhuphe izinto zokuhlamba eziseleyo kwibhareli uze ucoce ipleyiti ye-orifice;
4. Yima uze ukhuphe isikrufu ukuze ubone ukuba sicociwe na, uze ususe ngesandla izinto eziseleyo kwisikrufu. Phinda ufake isikrufu; yongeza izinto ezintsha ukuze uhlambe izinto eziseleyo zokuhlamba kwibhareli uze uyeke ukujikeleza kwesikrufu;
- Faka ipleyiti ye-orifice kunye nentloko ye-die ye-extruder enezikrufu ezimbini ukuze ugqibezele umsebenzi wokucoca i-extruder enezikrufu ezimbini.
Indlela yokucoca ebhakwe ngomlilo:
Ukusebenzisa umlilo okanye ukurosta ukususa iplastiki ebekwe kwisikrufu yeyona ndlela ixhaphakileyo nesebenzayo kwiiyunithi zokucubungula iplastiki. Sebenzisa i-blowtorch ukucoca isikrufu kwangoko emva kokusetyenziswa, kuba ngeli xesha isikrufu sithwala ubushushu obuvela kumava okucubungula, ngoko ke isikrufu Ukusasazwa kobushushu kusafana. Kodwa ungaze usebenzise ilangabi le-acetylene ukucoca isikrufu. Ubushushu belangabi le-acetylene bunokufikelela kwi-3000°C. Ukusebenzisa ilangabi le-acetylene ukucoca isikrufu akuyi kutshabalalisa kuphela iimpawu zesinyithi zesikrufu, kodwa kuya kuchaphazela kakhulu ukunyamezelana koomatshini kwesikrufu.
Ukuba ilangatye le-acetylene lijika libe ngumbala oluhlaza okwesibhakabhaka ohlala uhleli xa ubhaka inxalenye ethile yesikrufu, oko kuthetha ukuba ulwakhiwo lwesinyithi lwale nxalenye yesikrufu lutshintshile, nto leyo eya kukhokelela ekunciphiseni ukuxhathisa kokuguguleka kwale nxalenye, kwanokuvela kokurhawuzelelwa phakathi komaleko ochasene nokuguguleka kunye ne-matrix. Ukuqhekeka kwesinyithi. Ukongeza, ukufudumeza kwendawo ngelangatye le-acetylene kuya kubangela ubushushu obugqithisileyo kwelinye icala lesikrufu, okubangela ukuba isikrufu sigobe. Uninzi lwezikrufu zenziwe ngentsimbi ye-4140.HT kwaye zinokumelana okuqinileyo kakhulu, ngokubanzi ngaphakathi kwe-0.03mm.
Ukuthe tye kwesikrufu ubukhulu becala kungaphakathi kwe-0.01mm. Xa isikrufu sibhakiwe kwaye sipholiswa lilangatye le-acetylene, kudla ngokuba nzima ukubuyela ekuthe tye kwasekuqaleni. Indlela echanekileyo nesebenzayo: Sebenzisa i-blowtorch ukucoca isikrufu ngoko nangoko emva kokusetyenziswa. Ngenxa yokuba isikrufu sithwala ubushushu obuvela kwinkqubo yokucubungula ngeli xesha, ukusasazwa kobushushu besikrufu kusafana.
Indlela yokuhlamba ngamanzi:
Ukuhlamba ngezikrufu: Umatshini wokuhlamba ngezikrufu ozenzekelayo ngokupheleleyo usebenzisa amandla e-kinetic okujikeleza kwamanzi kunye namandla okuphendula okujikeleza ngezikrufu ukuze kufezekiswe ukukrazulwa ngama-degree angama-360 ngaphandle kwee-engile ezifileyo. Usebenza kakuhle kakhulu kwaye awonakalisi isakhiwo somzimba sesikrufu. Usebenzisa itekhnoloji entsha yokucoca izikrufu ngendlela enobuhlobo nokusingqongileyo, esebenza kakuhle neyonga amandla. Ifanelekile ukukrazulwa ngenkani kunye nokususwa kwezinto ezahlukeneyo zepolymer, ngoko ke yitekhnoloji yokucubungula eluhlaza enesiphumo esihle sokucoca.
Ixesha leposi: Juni-07-2024