I-Twin-screw extruders ngoomatshini bokusebenza kwintsimi yokudibanisa, kunye nokusebenza kwabo okuphezulu kunye nokwenziwa ngokwezifiso ziinzuzo zesikhundla sabo. Iyakwazi ukudibanisa izongezo ezahlukeneyo kunye nezihluzi ukufezekisa iimilo zeepellet ezahlukeneyo kunye neepropati ezinomsebenzi ohlukeneyo.
Ngelixa iintlobo zezongezo kunye nezizaliso zinokucutshungulwa ukuze zikhutshwe, ezinye iindlela zokufumana ezi mveliso zinokukhokelela kwimiba yongcoliseko kunye nokuhamba okuphantsi okanye uxinzelelo oluphantsi kwiindawo ezininzi kulo lonke umbhobho.
Kwinkqubo eqhubekayo efana ne-extrusion, ukungcola kunokuba nefuthe elibi. Ukuhlanjululwa kwi-extrusion kudla ukuba ngumngeni kunezinye iinkqubo, kwaye i-twin-screw extruders ijongene nemingeni emikhulu kuba inkqubo inzima kakhulu kune-screw extruder enye.
Okokuqala, makhe sijonge iindlela zokucoca i-twin-screw extruders.
Indlela yokucoca i-resin:
Ukusebenzisa i-polyester resin okanye i-epoxy resin yokucoca isetyenziselwa ukucoca izixhobo ezitsha okanye emva kokuba i-extruder isetyenziselwe ixesha elithile, ngenxa yokuba ezinye izinto zihlala kwi-screw okanye i-barrel kunye nejel, isantya se-extrusion sezinto siyancipha, kunye nombala. Umahluko wokutshintsha kombala ezahlukeneyo mkhulu. Le ndlela ingasetyenziswa. Namhlanje, kunye noqoqosho oluphuhliswe kakhulu lwempahla, akukho ukunqongophala kwezicoci ezahlukeneyo ze-screw (izinto zokucoca i-screw) kwiimarike, ezininzi zazo zibiza kwaye zineempembelelo ezahlukeneyo.
Ingaba ukusebenzisa izicoci zentengiso kuxhomekeke kubavelisi abahlukeneyo kunye neemeko zemveliso; Iinkampani zokulungisa iplastiki nazo zinokusebenzisa iireyini ezahlukeneyo njengezinto zokucoca izikrufu ngokweemeko zazo zokuvelisa, ezinokugcina iindleko ezininzi zeyunithi.
Isinyathelo sokuqala sokucoca i-screw kukucima iplagi yokutya, oko kukuthi, ukuvala i-port feed phantsi kwe-hopper; emva koko unciphise isantya sokujiya ukuya kwi-15-25r / min kwaye ugcine esi santya kude kube ukunyibilika kokunyibilika kwisiphelo sangaphambili sokuyeka ukuyeka ukuhamba. Ubushushu bazo zonke iindawo zokufudumeza zombhobho kufuneka zibekwe kwi-200 ° C. Emva kokuba umgqomo ufikelele kobu bushushu, qalisa ukucoca ngokukhawuleza.
Ngokuxhomekeke kwinkqubo yokukhutshwa (kunokuba yimfuneko ukususa ukufa ukunciphisa umngcipheko woxinzelelo olugqithisileyo ekupheleni kwe-extruder), ukucocwa kufuneka kwenziwe ngumntu omnye: umqhubi uqaphela isantya se-screw kunye ne-torque kwipaneli yokulawula. , kwaye iqwalasela uxinzelelo lwe-extrusion ukuqinisekisa ukuba uxinzelelo lwenkqubo aluphezulu kakhulu. Ngethuba lenkqubo yonke, isantya se-screw kufuneka sigcinwe ngaphakathi kwe-20r / min. Ekusetyenzisweni kweentloko zoxinzelelo oluphantsi, musa ukususa intloko yokufa yokucoca kuqala. Yima kwaye ususe intloko yokufa ngokukhawuleza xa i-extrudate iguqulwa ngokupheleleyo kwi-resin processing ukuya kwi-resin yokucoca, kwaye emva koko uqalise i-screw (isantya ngaphakathi kwe-10r / min) ukuvumela ukuba i-resin yokucoca intsalela iphume.
Isikhokelo seDisassembly:
1. Yongeza ngesandla izinto zokuhlamba kwi-port yokukhupha kuze kube yilapho umbala we-strip material ekhutshiweyo ufana ne-pellets yezinto zokuhlamba, ukuyeka ukutya, ukukhupha izinto eziphathekayo, kwaye umise ukujikeleza kwe-screw extruder screw twin-screw;
2. Vula i-screw extruder die intloko kwaye uqale ukucoca;
3. Jika i-twin-screw extruder screw kwaye ususe ipleyiti yokuphuma ukuze ukhuphe imathiriyeli yokuhlamba eshiyekileyo emgqomeni kwaye ucoce ipleyiti yokuphuma emlonyeni;
4. Yima kwaye ukhuphe isikrufu ukujonga ukuba sicociwe, kwaye ususe ngesandla izinto ezishiyekileyo kwi-screw. Phinda ufake isikrufu; yongeza izinto ezintsha zokugungxula izinto ezishiyekileyo zokuhlambela emgqomeni kwaye uyeke ukujikeleziswa kwesikrufu;
- Faka ipleyiti ye-orifice kwaye ufe intloko ye-twin-screw extruder ukugqiba umsebenzi wokucoca we-twin-screw extruder.
Indlela yokucoca ngomlilo:
Ukusebenzisa umlilo okanye ukuqhotsa ukususa iplastiki emiswe kwisikrufu yeyona ndlela iqhelekileyo nesebenzayo kwiiyunithi zokwenziwa kweplastiki. Sebenzisa i-blowtorch ukucoca i-screw ngoko nangoko emva kokusetyenziswa, kuba ngeli xesha i-screw ithwala ubushushu obuvela kumava okucubungula, ngoko i-screw Ukuhanjiswa kobushushu kusafana. Kodwa ungaze usebenzise ilangatye le-acetylene ukucoca isikrufu. Iqondo lobushushu ledangatye le-acetylene lingafikelela kuma-3000°C. Ukusebenzisa i-acetylene flame ukucoca i-screw ayiyi kutshabalalisa kuphela iipropathi zetsimbi ze-screw, kodwa zichaphazela kakhulu ukunyamezela komatshini we-screw.
Ukuba ilangatye le-acetylene lijika libe ngumbala oluhlaza okwesibhakabhaka oqhubekayo xa ubhaka inxalenye ethile ye-screw, oko kuthetha ukuba isakhiwo sesinyithi sale nxalenye yesikrufu sitshintshile, okuya kukhokelela ekunciphiseni ukuchasana kokunxiba kwale nxalenye, kwaye nokuba ukwenzeka kwe-abrasion phakathi kwe-anti-wear layer kunye ne-matrix. Ukuxobula isinyithi. Ukongeza, ukufudumeza kwendawo kunye nomlilo we-acetylene kuya kubangela ukushisa kwelinye icala le-screw, kubangela ukuba i-screw igobe. Uninzi lwezikrufu zenziwe ngentsimbi ye-4140.HT kwaye zinokunyamezela okuqinileyo, ngokubanzi ngaphakathi kwe-0.03mm.
Ukuthi tye kwesikrufu ubukhulu becala kungaphakathi kwe-0.01mm. Xa isikrufu sibhakwa kwaye sipholile ngedangatye le-acetylene, kudla ngokuba nzima ukubuyela kwindawo ethe tye. Indlela echanekileyo nesebenzayo: Sebenzisa iblowtorch ukucoca isikrufu ngoko nangoko emva kokusetyenziswa. Ngenxa yokuba i-screw ithwala ubushushu kwinkqubo yokucubungula ngeli xesha, ukusabalalisa ubushushu be-screw kusafana.
Indlela yokuhlamba amanzi:
Ukuhlamba isikrufu: Umatshini wokuhlamba isikrufu ozenzekela ngokugqibeleleyo usebenzisa amandla ekinetic okujikeleza kwamanzi kunye namandla okusabela kwesijiyu sokujikelezisa ukufikelela kwi-360-degree stripping ngaphandle kwee-engile ezifileyo. Unomsebenzi ophezulu wokusebenza kwaye ungonakalisi isakhiwo somzimba we-screw. Iqaphela itekhnoloji entsha yokucoca izikrufu ngendlela ehambelana nokusingqongileyo, esebenzayo kunye neyonga amandla. Kufanelekile ukuchithwa ngenkani kunye nokususwa kwezinto ezahlukeneyo zepolymer, ngoko ke iteknoloji yokucubungula eluhlaza kunye nefuthe elihle lokucoca.
Ixesha lokuposa: Jun-07-2024