Inkqubo yokubumba inaliti ifanelekile kwimveliso yobuninzi yomgangatho ophezulu kunye neenxalenye zemveliso ezinzima. Inkqubo yokubumba inaliti ixhomekeke kakhulu kuyilo kunye nezinto ezisetyenziswa kwimveliso. Ke ngoko, abavelisi bafuna iinkqubo ezilula zokusebenzisa izixhobo zokuvelisa iimveliso ezingcono ngexabiso eliphantsi bajike bajike kwinaliti ye-aluminiyam.
Ngokwemvelii-aluminium die-casting iimvelisoinokuveliswa kwakhona. Nangona kunjalo, baseneziphene ezininzi, ukunyamezela kwemveliso kukhulu kakhulu, kwaye ezinye zifuna ukuqhutyelwa phambili kunye nenqanaba eliphezulu. Kuba kunzima kubo ukuqinisekisa imveliso ekhawulezileyo. Siza kuxoxa ngezinto eziluncedo, ezingeloncedo, kunye neempawu zokubumba inaliti yealuminiyam.
Yintoni isitofuumngundo aluminiyam yangasemva?
Ngenkqubela phambili eqhubekayo yenzululwazi yezentlalo kunye nethekhinoloji kunye nophuhliso olomeleleyo loshishino lwehlabathi, iishishini lomgubo wesinyithiikhula ngokukhawuleza ngenxa yeengenelo zayo ezininzi, kwaye ubugcisa bayo buye basetyenziswa ngokubanzi kwezemikhosi, ezothutho, oomatshini, izinto zombane, i-aerospace, inqwelomoya, nakwamanye amacandelo.
I-MIM (isitofu sesinyithi sokubumba)ukondla ngundoqo wenkqubo yokulungiselela imveliso yokubumba i-metal, eyi-powder yesinyithi kunye ne-arhente yokubumba ngokomlinganiselo othile kwiqondo elithile lobushushu, kumatshini wokuxuba ixesha lokuxuba ubushushu. Emva koko nge-screw extrusion yokusika igranulation, ibe yinaliti yokubumba ifidi.
Nangona izinto ze-aluminium zinobuninzi obuphantsi, amandla ayo emveliso aphakamileyo, asondele okanye adlula insimbi ephezulu. Ineplastikhi eyomeleleyo, i-thermal conductivity elungileyo, ukumelana nokugqwala, kunye ne-thermal conductivity. Ezinye iialloyi ze-aluminiyam zinokufumana iipropathi ezilungileyo zoomatshini kunye neempawu zomzimba ngonyango lobushushu, kwaye zinokufumana ukuxhathisa okungcono kokuhlwa nge-anodizing.
Ngenxa yendlela yokuvelisa i-alloy ye-aluminium yendabuko, ukusebenza kakuhle kwemveliso ephantsi, iindleko ezinzima zokucubungula, kunye nesakhiwo esiyinkimbinkimbi sokulungiswa kwemveliso asinakuphuma, asikwazi ngokupheleleyo ukuhlangabezana neemfuno zophuhliso olukhawulezayo lwezoshishino lwanamhlanje.
Ngoko ke, kuyimfuneko ukubonelela nge-aluminium mim yentsimbi yokubumba i-feed ye-injection efanelekileyoinkqubo yokubumba inaliti yesinyithi.
Ziziphi izinto zokuphunyezwa kweteknoloji ye-Metal naliti ye-aluminium?
Ngokusekwe koku, kuyimfuneko ukubonelela ngesondlo sokubumba inaliti ye-aluminiyam, iinxalenye zokubumba inaliti ye-aluminiyam, kunye nendlela yokulungiselela, kubandakanya i-aluminiyam yokubumba inaliti ye-alloy, indlela yokulungiselela isitofu se-aluminiyam yokubumba, iindawo zokubumba inaliti ye-aluminium, kunye ne-aluminiyam yokubumba iinxalenye indlela yokulungiselela. Isenokuthiwa njengesondlo sokubumba inaliti ye-aluminiyam kunye nendlela yayo yokulungiselela kunye neendawo zokubumba inaliti ye-aluminiyam kunye nendlela yayo yokulungiselela.
Isondlo sokubumba inaliti ye-aluminiyam siquka umgubo we-aluminium kunye ne-arhente yokubumba kwipesenti yobunzima bulandelayo:
I-aluminium alloy powder 85% ~ 88%;
I-arhente yokubumba i-12% -15%;
Apho, i-arhente yokubumba iquka la malungu alandelayo obunzima:
Kwindlela enye, i-aluminium alloy powder yi-2024 i-aluminium alloy powder.
Kwimo enye, i-aluminium alloy 2024 i-aluminium powder iquka la macandelo alandelayo ngepesenti enkulu:
Ngenye indlela, iparafini ekuthethwa ngayo yiparafini enguNo.58.
Kwimeko enye, ubunzima bemolekyuli ye-ethylene-vinyl acetate copolymer ukusuka kwi-1900 ukuya kwi-2000.
Kwenye yeembonakaliso, i-polyformaldehyde yi-co-polyformaldehyde.
Kwimeko enye, i-polyethylene glycol yi-polyethylene glycol 2000 ukuya kwi-6000.
Yintoni Inaliti yesinyithi yokubumba indlela yokulungiselela ukutya kwe-aluminiyam, kuquka la manyathelo alandelayo
- Gcoba umgubo we-aluminiyam we-alloy ukuze ufuye ukubunjwa kwenaliti yayo nayiphi na engasentla ukuya kwi-170℃ ukuya kwi-190℃;
- Yongeza into yokubumba yaso nasiphi na isitofu sokubumba se-aluminiyam yealluminiyam engentla kwi-alluminiyam eshushu ngaphambili, qhubeka ufudumeza, kwaye ugcine ubushushu bukwi-175℃ ukuya kwi-185℃ ukunyibilikisa i-arhente yokubumba kwaye udibanise nomgubo we-aluminium oxubeneyo;
- Gcina ubushushu kwi-175 ℃ ukuya kwi-185 ℃ imizuzu engama-20 ukuya kwengama-30;
- Phola;
- Extrude;
- Sika ukutya kwegranulation.
Indlela yokulungiselela isitofu sokungunda ialuminiyamibandakanya la manyathelo alandelayo: kubandakanywa indlela yokulungiselela ukutya kwenaliti yokubumba ingxubevange ye-aluminiyam njengoko kuchazwe ngasentla kwaye, emva kokusika kunye nokucoca i-feed, amanyathelo: ukubumba, ukukhupha, kunye ne-sintering.
Ukuveliswa kuhambelana nenxalenye yokubumba ye-aluminiyam yesitofu elungiswe yindlela yokulungisa nayiphi na indawo yokubumba ye-aluminiyam ye-alloy ye-alloy ekhankanywe ngasentla.
I-aluminiyam echazwe ngasentla naliti yokubumba i-aluminiyam, iinxalenye zokubumba ze-aluminiyam yesitofu, kunye neendlela zokulungiselela zingasetyenziselwa ukuveliswa kweemveliso ezinokwenzeka ze-aluminium kunye nezakhiwo eziyinkimbinkimbi, ezitshintsha iintsilelo zobunzima bokucubungula i-aluminium yendabuko kunye neendleko eziphezulu zokulungisa, kunciphisa kakhulu imveliso kunye neendleko zokulungisa imveliso ye-aluminium eyinkimbinkimbi kunye ne-aluminium edibeneyo yokuvelisa i-alluminiyamu yonke i-aluminiyam. Iye yaphakamisa inqanaba leteknoloji entsha kunye nemveliso kwishishini lemveliso yasekhaya. Ngaphezu koko, ngenkqubo entsha, ulungiselelo olutsha kunye nendlela yokucubungula, umgangatho weendawo zokubumba iinaliti ze-aluminium ezifunyenweyo zigqwesile, zilungele imveliso enkulu, ukunciphisa iindleko kunye nokuphucula ukusebenza kakuhle kokuveliswa kwamalungu okubumba i-aluminium.
Ziziphi izinto eziluncedo zokubumba inaliti ye-aluminiyam yentsimbi?
· Iindleko
Xa kuziwa ekwenzeni umngundo wokutofa, iinaliti ze-aluminiyam zinexabiso eliphantsi kunemold yenaliti yentsimbi. Ukucinga ukuba zonke ezinye iimeko ziyalingana, ukubumba okwenziwe nge-aluminium kunokubuyisela iindleko zotyalo-mali lokungunda ngokukhawuleza.
· Ixesha lokuvelisa
Iimbumba zeAluminiyam ziqinisekisa inkqubo yokuvelisa imveliso ngokukhawuleza. Ukusuka kuyilo lokungunda ukuya kwimveliso egqityiweyo, ukubumba inaliti yentsimbi kunokuthatha iinyanga ezi-1-2. Nangona kunjalo, kunye ne-aluminium injection molds, i-molds, i-prototypes kunye nemveliso egqityiweyo ithatha iintsuku ezi-7-14 kuphela.
·Isebenza kwizixa ezisezantsi
Iimold ze-aluminiyam zeplastiki zenaliti zixabisa ngakumbi ukwenza iinxalenye kwiibhetshi ezincinci. Oku kungenxa yeendleko zokuqala wakwazi ukunciphisa, ngelixa esenza amawaka amacandelo athembekileyo.
· Ixesha lokusila
Iimolds zentsimbi azibutshisi ubushushu ngokukhawuleza njenge-aluminium prototype molds. Ngenxa yoko, banokutshisa kwaye baphole ngokukhawuleza ngokukhawuleza. Kwinkqubo yokubumba inaliti, ixesha lokupholisa libalela umjikelo wenkqubo yonke yokubumba. Ke ngoko, ukukhetha indlela yokwenza i-aluminiyam kunokunciphisa ixesha lokujikeleza kwaye ngaloo ndlela kukhawulezise ukuveliswa kwenxalenye.
·Ivenkile
Ukufudumeza okungalinganiyo kunye nokupholisa ngomnye wezona zizathu ziphambili zeziphene ezinje nge-sink marks, i-voids kunye ne-scar scars. Ukutshatyalaliswa kobushushu obuphezulu bokubumba kwe-aluminium kuvumela ukuba i-mold ifudumale kwaye ipholile ngokukhawuleza kwaye ilungelelanise, ukunciphisa inani leengxenye eziphosakeleyo kunye ne-scrap.
·Ulungiso olulula kunye neeRetrofits
Ubunzima bensimbi buphezulu kakhulu, ngoko ke ixesha lokulungiswa kwezinto ezinokukhubazeka okanye ezonakalisiweyo zokubumba zensimbi zide kwaye iindleko zokulungisa ziphezulu, nto leyo echaphazela ixesha lokunikezelwa kweemveliso. Nangona kunjalo, iimolds ze-aluminiyam zeplastiki zenaliti zenziwe ngezinto ezithambileyo, kwaye eli nqaku lenza ukulungiswa kunye nokutshintshwa kube lula ukuba kukho ingxaki nge-aluminiyam naliti yokubumba.
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