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Ngokusekelwe kwiiparamitha zokubumba kunye neemfuno zenkqubo ezinikezelwa ngumsebenzisi (i-molds ephezulu kunye nesezantsi kunye ne-mold ephakathi kufuneka itshiswe kwi-170 ° C ngaxeshanye), kwaye idibene namanqaku aphambiliisilawuli sobushushu sokungundaukhetho olufunyenwe kwiziphumo zokukhangela, oku kulandelayo kucetyiswa amandla kunye nokukhethwa kwempompo yeoli kubalawuli ababini bobushushu bokubumba:
I. IsiLawuli soBubushushu boMngundoUkhetho lwamandla
1. Ukubalwa kwamandla okufudumeza
Amandla okufudumeza kufuneka abalwe ngokusekelwe ubunzima ngundo, umahluko lobushushu, umthamo ubushushu ethile, kunye nexesha ukufudumeza. Ifomula yile:
KW = W × Δt × C / (860 × T)
W: Ubunzima bokubumba (kg) (i-1.5t nganye kwi-molds ephezulu nangaphantsi = 1500kg, i-3t ye-mold yeziko = 3000kg)
Δt: Umahluko wobushushu (170°C - 20°C ubushushu be-ambient = 150°C)
C: Umthamo wobushushu obuthile (i-0.11 yokubumba intsimbi)
T: Ixesha lokufudumeza (ithatha iyure enye)
Umzekelo wokubala:
Amandla omnyeisilawuli sobushushu sokungundaukwenzela umngundo ophezulu nasezantsi:
KW = (1500 × 2) × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (ukuqwalasela ukulahlekelwa kobushushu, i-20% yokuphindaphinda inconywa, ngoko ke i-70 kW ikhethiwe).
Amandla okulawula ubushushu obuphakathi:
kW = 3000 × 150 × 0.11 / (860 × 1) ≈ 57.6 kW (efana ne-70 kW).
Isindululo somvelisi:
Iimolds ezinkulu zeetoni (umzekelo, iitoni ezi-3 zokubumba eziphakathi) zifuna amandla aphezulu ukuqinisekisa ixesha lokufudumala. Jonga kuqwalaselo lokungunda koomatshini bokulahla ngaphezulu kweetoni ezingama-800 (24 kW/mold). Nangona kunjalo, umsebenzisi ufuna ukufudumeza ngokubanzi, ngoko ke kufuneka ukubala okubanzi.
2. Ukuchaneka kokulawula ubushushu kunye nokuzinza
Inkqubo ye-die-casting ifuna ukuchaneka kokulawula ubushushu ngaphakathi kwe-±1 °C. Inkqubo yokulawula i-PID okanye ye-PLC exhotyiswe ngenzwa yokushisa ephezulu echanekileyo iyafuneka.
Uyilo lweesekethe ezimbini okanye iisekethe ezininzi zifaneleke ngakumbi ukubumba kunye nemijelo yeoli eninzi ukuqinisekisa ukufana kweqondo lokushisa.
II. UKhetho lweMpompo yeOyile
1. IiMfuno zokuHamba kunye noxinzelelo
Ukubala okuqukuqelayo: Umthamo wetshaneli yeoli iyonke kunye nesantya sokujikeleza kufuneka kuhlangatyezwane nayo. Umthamo wetshaneli enye yeoli (ububanzi 19mm = 1.9cm, ubude be-11m = 1100cm):
V = πr² × L = 3.14 × (0.95)² × 1100 ≈ 3125cm³ = 3.125L/itshaneli.
Izinga lokuhamba lilonke kwi-molds ephezulu / ephantsi: iziteshi ze-oyile ezi-8, i-4 inlet kunye ne-4 yokuphuma, i-volume epheleleyo ye-25L. Umlinganiselo wokujikeleza okhuthazwayo ≥ 100L / min ucetyiswa (ukuqinisekisa ukutshintshwa kobushushu obukhawulezayo).
Isantya sokuhamba kwesikhunta esiphakathi: Izibalo ezifanayo ziyafuneka, zifuna ≥ 80L / min.
Iimfuno zoxinzelelo:
Iziteshi zeoyile ezinde kunye namasebe amaninzi zifuna impompo ephezulu yoxinzelelo (≥ 4bar) ukunqoba ukuchasana. Ipompo ye-magnetic drive (i-high-temperature resistant kunye ne-backflow support) iyanconywa.
2. Uhlobo lweMpompo ye-oyile kunye neempawu
Iimpompo ezihamba ngokusisigxina: Isakhiwo esilula, esifanelekileyo kwiimfuno ezizinzileyo zokuhamba; iimpompo zokuqukuqela okuguquguqukayo: Ziyonga amandla kodwa zinexabiso eliphezulu, zilungele iimeko zokuhamba eziguquguqukayo.
Izinto eziphathekayo: Ioli ye-thermal ephezulu yokushisa (ukuya kwi-350 ° C) idinga umzimba wempompo yensimbi engenasici kunye nezitywina ezichasene nobushushu obuphezulu (njenge-fluororubber).
III. Iingcebiso zoKhetho oluBanzi
IsiLawuli soBubushushu boMngundoUbumbeko:
Phezulu/NgasezantsiIsiLawuli soBubushushu boMngundo: I-70kW amandla okufudumeza, i-100L / isantya sokuhamba ngomzuzu, i-4 bar yoxinzelelo, uyilo lwe-dial-circuit.
PhakathiIsiLawuli soBubushushu boMngundo: Amandla okufudumeza ama-70kW, i-80L / min flow rate, i-4 bar yoxinzelelo, idizayini yesekethe enye (iisekethe ezininzi ziyafuneka kwi-zoning yeqondo lokushisa).
Iimpawu ezongezelelweyo:
Ukuvuthela komoya kunye nomsebenzi wokubuyisela ioli (ubuyisela ioli ye-thermal ngexesha lokutshintsha kwesikhunta).
Ulawulo lwe-PLC, luxhasa inkqubo yejiko lobushushu kunye nokugawulwa kweempazamo.
UKhuseleko kunye nokuSebenza koMbane:
Ukhuseleko lobushushu obugqithisileyo, i-alam yobumanzi obuphantsi, kunye nezinye iimpawu zokhuseleko.
Uyilo lwempompo oluguquguqukayo lokonga amandla lunciphisa ukusetyenziswa kwamandla kwexesha elide.
IV. Ukulumkela
Ulwelo lokudluliswa kobushushu: Ioli yokwenziwa kobushushu obuphezulu (njengomxube we-biphenyl-diphenyl ether). Guqula rhoqo (ngonyaka uyacetyiswa).
Uqhagamshelo lwemibhobho: Sebenzisa i-19mm yedayamitha yetyhubhu ejikelezayo yentsimbi ukunciphisa ilahleko yobushushu.
Ukuba ufuna ukwazi ngakumbi malunga nemveliso yethu, ncedaQhagamshelana nathi!
Ixesha lokuposa: Aug-11-2025
