Isikulufu Esisodwa Sohlobo Oluncane Kancane

Lesi sikulufu sohlobo olulodwa senziwe ngensimbi engu-38CrMoAla. Izinto ezingavuthiwe zibalulekile ekusebenzeni ngezikulufu, futhi sikhetha insimbi enamandla amakhulu nengagugi kubakhiqizi bensimbi abadumile baseShayina abahlangabezana nezindinganiso zikazwelonke (GB/T 3077).

I-tgradual-type screw extruder ye-tgradual ye-Nanhaiya ihlukaniswe yaba izigaba ezintathu ngokusekelwe emsebenzini wazo. Ukujula kwemitshingo esigabeni ngasinye kuncipha ngokulandelana ngaphandle kwezinguquko ezisheshayo, okudala ukwakheka okubushelelezi, "okuhamba kancane".

Isigaba sokuphakelayo ngokuvamile sithatha u-20% -30% wesamba sobude bezikulufu. Ingxenye yokuminyanisa, ingxenye emaphakathi yesikulufu, ilandisa ingxenye enkulu kunazo zonke (40% -50%) futhi iwumongo wesakhiwo esihamba kancane. Ukujula komtshingo kuqala ezingeni eliphezulu kakhulu esigabeni sokuphakelayo futhi kancane kancane kuncipha ngokulinganayo ngobude besikulufu, kwenze "indawo yokucindezela."

Isigaba se-homogenization siqhubeka sixuba futhi sinyakazise ukuncibilika, siqinisekise izinga lokushisa elifanayo lokuncibilika kanye ne-viscosity. Izinto ezisetshenziswayo zibe sezilethwa ekhanda lokufa ngengcindezi ezinzile kanye nezinga lokugeleza, okuqinisekisa ikhwalithi engaguquki yomkhiqizo okhishiwe.

Imiphongolo yesikulufu yohlobo olulodwa lwe-Nanhaiya kancane kancane iye yabhekana ne-R&D eminingi kanye nentuthuko futhi manje isihlanganiswe emigqeni yokukhiqiza yabakhiqizi abahlukahlukene, ifinyelela ukusebenza kwesimanjemanje. Sinikeza iwaranti yeminyaka engu-1-2, kuye ngesilinganiso esithile sokwengezwa kwempahla. Imiphongolo ye-Nanhaiya ingena kunqubo ye-nitriding, enogqinsi oluwu-0.8~2m olujiyile lwe-nickel-tungsten alloy eshiselwe ezindaweni ezithandwa kakhulu. Lokhu kwandisa ubulukhuni bobuso bomgqomo yi-HRC55~62, kukhulisa ukumelana nokugqoka izikhathi ezingu-2-3.

Ipharamitha Yezobuchwepheshe

Isici Futhi Isicelo

I-scruder ye-screw extruder yohlobo olulodwa lwe-Nanhaiya inezigaba ezintathu ezinezigaba ezicacile zokusebenza. Imingcele yenqubo ehambisanayo (izinga lokushisa, isivinini, nokucindezela emuva) ingalungiswa ngokunengqondo, yenze ukusebenza kube lula kakhulu kunezikulufu ezikhethekile.

Ukulawula Ukushisa Okulula: Ukulungiselelwa kwezinga lokushisa kwezigaba ezintathu kulandela isimiso "sokukhuphuka kwegradient". Isigaba sokuphakelayo sinezinga lokushisa eliphansi kakhulu (elidingekayo kuphela ukuthambisa impahla, njenge-50-80 ° C yokucubungula i-PE), isigaba sokucindezela kancane kancane sikhuphuka ekushiseni (ukufinyelela endaweni yokuncibilika, njenge-160-180 ° C ye-PE), futhi isigaba se-homogenization siyazinza endaweni yokuncibilika (njenge-180-200 ° C). Ukulungiswa kwezinga lokushisa lendawo okuyinkimbinkimbi akudingekile.

Ukuhlobana Komugqa Phakathi Kwejubane Nokuphumayo: Ngaphakathi kwebanga lesivinini elinengqondo (ngokuvamile u-30-150 rpm), okukhiphayo kukhula cishe ngokomugqa ngesivinini sesikulufu, okuqeda isidingo sokulungiswa kwesinxephezelo sokucindezela okuvamile. Lokhu kuyenza ifaneleke opharetha abasaqalayo futhi kusiza ukukhiqizwa kwesilinganiso esikhulu esiqhubekayo nesizinzile (njengokukhipha amapayipi namafilimu okuqhubekayo amahora angama-24).

Imfuneko yokucindezela okuphansi emuva: Ukujula kwe-screw groove esigabeni se-homogenization akushintshi futhi akujulile, futhi ukucindezela okuvamile kuphela okungemuva kwebha engu-3-8 kuyadingeka ukuze kuqinisekiswe ukuncibilika okufanayo. Ukucindezela okungemuva okwedlulele kuzokhuphula i-screw torque, kukhuphule ukusetshenziswa kwamandla, futhi kubangele nokuncibilika ngokweqile, futhi ipharamitha yenqubo "yokubekezelela" iphezulu.

I-scruder yesikulufu esisodwa sohlobo oluhamba kancane ilungele ukukhiqiza amafilimu e-PE (i-polyethylene) (njengokugoqa ukudla, izikhwama zokuthenga ezitolo ezinkulu, nezikhwama zokuletha ezingangeni manzi), itheyiphu yokubopha ye-PP (polypropylene), kanye nefilimu yokushisa ye-PVC (polyvinyl chloride). Ingaphinda ikhiqize amapayipi okudonsa amanzi e-PVC, amapayipi amanzi e-PPR, amapayipi egesi e-PE, namaphrofayili ohlaka lwamafasitela epulasitiki. Ingaphinda ikhiqize imicengezi yepulasitiki ye-PE, amabhakede epulasitiki e-PP, i-PVC cable trunking, namabhokisi okugcina epulasitiki. Ingakwazi futhi ukwenza izinto ezigaywe kabusha ze-PE ne-PP futhi ikhiqize amapayipi e-PE agcwaliswe kufika ku-10% we-calcium carbonate.

Imininingwane Yomkhiqizo

Ukushisa okuthuthukisiwe, ukunemba kwemishini, nezinqubo ze-nitriding ziqinisekisa ukusebenza okuphelele kwezingxenye ezibalulekile.

Izindawo ezisengozini ye-screw kanye nomgqomo ziqiniswa nge-nickel-tungsten alloy layer, ezifinyelela ungqimba oluwugqinsi ongu-0.8-2.0mm futhi kuthuthukisa kakhulu ukumelana nokugqokwa.