Isikulufu sokubumba sokujova kancane kancane

Lesi sikulufu sokubumba umjovo kancane kancane 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).

Isikulufu sokubumba umjovo kancane kancane sika-Nanhaiya sinesigaba sokuminyanisa eside, ngokuvamile esibalela cishe u-50% wesamba sobude besikulufu. Ukujula kwe-screw groove kuncipha kancane kancane ukusuka esigabeni sokuphakela kuya esigabeni sokulinganisa, kuqinisekisa ukuhanjiswa kwepulasitiki okubushelelezi, ukuminyanisa, kanye nokwenza ipulasitiki. Ukuguqulwa kwamandla ngesikhathi sokwenziwa kwepulasitiki kuthambile, futhi umphumela wokugunda epulasitiki ngaphakathi kwesikulufu uyakhula kancane kancane, okwenza inqubo yokwenza ipulasitiki iqedwe ngaphansi kwezimo ezithambile.  

Imiphongolo yesikulufu yokubumba yomjovo ka-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 (Ukucaciswa)

Isici Futhi Isicelo

Isikulufu sokubumba umjovo ka-Nanhaiya kancane kancane, esinesigaba saso sokuminyanisa eside, sifinyelela "i-plasticization emnene" yamapulasitiki a-amorphous futhi azwela ukushisa. Ngokushisisa kancane nokugunda okuqhubekayo, kuvimbela ukuwohloka kwempahla ngenkathi kuqinisekisa ukuncibilika okufanayo, kuyenze ifaneleke kakhulu izinhlelo zokusebenza ezidinga ukuzinza okuphezulu kwepulasitiki. Isigaba sokuminyanisa ngokuvamile sithatha u-40% -60% wesamba sobude bezikulufu, side kakhulu kunezikulufu ezingalindelekile (kuphela ngo-5% -15%), okunikeza isikhala esanele soshintsho sento. Kusukela emseleni ojulile wesigaba sokuphakela kuya emgodini ongashoni wesigaba semitha, ukujula kuncipha kancane futhi ngokuqhubekayo, ngaphandle kwamaphuzu okuguquka "okuzumayo" asobala, ngaleyo ndlela kuvimbele ukucindezelwa okukhulu kwempahla. Izingxenye zokuphakela nemitha zishintsha kalula ngesigaba sokuminyanisa eside, kwakheka ukwakheka kwesikulufu esiqhubekayo futhi kuvimbele ukunqwabelana kwendawo noma izinguquko zengcindezi engazelelwe ngesikhathi sokudlulisa okubalulekile.

Izikulufu zokubumba umjovo we-gradient zilungele i-polyvinyl chloride eqinile (PVC), i-polystyrene (PS), i-polycarbonate (PC), i-polysulfone (PSU), ne-ABS resin. Lawa mapulasitiki angaba nebanga lokushisa elithambile elibanzi (isb., i-PVC, cishe i-80-160 ° C) noma ukuqina okushisayo okushisayo (isb., I-PC, ejwayele ukuwohloka emazingeni okushisa angaphezu kuka-300 ° C), edinga indawo epholile ye-plasticizing.

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.