Xa abantu bethetha ngokugaywa kwentlabathi yeresin, badla ngokuba nomfanekiso wenkqubo elula, ephantse ikrwada—isanti nje exutywe ne-binder egalelwa kwipateni. Oko kukwenza lula okuyingozi. Inyani ngumdaniso odibeneyo phakathi kwekhemistri, ixesha, kunye nokuziva, apho umahluko phakathi kwesandi esisakazwayo kunye nemfumba yenkunkuma ebiza kakhulu ihlala ixhomekeke kwiinkcukacha uninzi lwamaphepha angakhankanywanga. Akunjalo nje ngokwenza isikhunta; imalunga nokulawula ukusabela.
I-Core Chemistry kunye nokuziva kweSanti
Intliziyo yayo yinkqubo yokubopha, ngokuqhelekileyo i-furan okanye i-phenolic resin ene-acid catalyst. Ireyishini ayingomanani asuka kwincwadana; zitshintsha ngokufuma, ubushushu besanti, nkqu nophawu lwentlaka. Ufunda ukufunda isanti. Umxube kufuneka ubambe ubume bawo xa ucinezelwe, kodwa uphule ngokucocekileyo-ungagxininisi kakhulu, ungabonakali kakhulu. Ukuba isanti ivakala ibanda kwaye ixesha lokuhluma licolile, kunokufuneka ulungise ipesenti yecatalyst, mhlawumbi ngesiqingatha sepesenti. Lubizo lomgwebo. Ndizibonile iibhetshi zonakalisiwe ngenxa yokuba umntu walandela iphepha ledatha kwileta ngemini efumileyo yasehlotyeni, engayihoyi into yokuba imfumba yesanti ngasemnyango yayifunxa ukufuma.
Kukho nesanti ngokwayo. Isanti ye-silica ixhaphakile, kodwa kwizicelo ezithile ezifuna uzinzo olungcono lwe-thermal okanye ukugqiba umphezulu, unokufudukela kwi-zircon okanye ichromite. Ubungakanani beenkozo kunye nokuhanjiswa kubaluleke kakhulu ukuze kungeneke. Isanti ecolekileyo kakhulu inokubamba iigesi, ezikhokelela kwizithonga kunye nemingxunya. Sifunde oku ngendlela enzima kwibhetshi yezindlu zempompo kumxhasi, apho utshintsho kumthengisi wesanti-ebonakala ngathi i-specs efanayo-yakhokelela kwireyithi ye-15% ye-scrap evela kwiziphene ezingaphantsi komhlaba. I-spec sheet yathi i-AFS 55, kodwa ukumila okuziinkozo kwahlukile, okuchaphazela indlela iigesi eziphunyukileyo ngayo.
Apha kulapho amava trumps ithiyori. Ixesha le-muller-ixesha elingakanani udibanisa isanti, i-resin, kunye ne-catalyst-ibaluleke kakhulu. Ukuxutywa ngaphantsi, ufumana iindawo ezibuthathaka. Uxubene kakhulu, uqala ukusabela konyango ngaphambi kwexesha, uphulukana nobomi bebhentshi. Uphuhlisa isingqisho. Kwinkqubo ye-furan, mhlawumbi yimizuzwana engama-90 emva kokutshiza kwe-catalyst, kodwa ujonge ukutshintsha kwe-texture. Yinkqubo ebambekayo kunye nebonwayo njengexesha elibekiweyo.
Ukwenza iPatheni kunye noYilo oluBalulekileyo
Ipatheni, nokuba ngumthi, isinyithi, okanye iplastiki, kulapho inkqubo iqala khona. Impazamo eqhelekileyo ye-rookie kukujongela phantsi uyilo. Nokuba intle kakhulu yokubola kwesanti yentlaka xa kuthelekiswa nesanti eluhlaza, udinga idrafti eyaneleyo yokuhlutywa okucocekileyo. Kwiijometri zangaphakathi ezintsonkothileyo, ngamanye amaxesha sisebenzisa iipateni ezinamacandelo amaninzi okanye iziqwenga ezikhululekileyo. Ndikhumbula ipateni yemeko yegiya entsonkothileyo apho saphose ekuqaleni i-undercut kushicilelo olungundoqo. Umngundo wahlutha, kodwa wakrazula, ushiya ukufakwa kwesanti kwi-casting. Ukuhlengahlengiswa okuncinci kwepateni, ukongeza i-1.5 degrees nje yedrafti eyongezelelweyo, isombulule ngokupheleleyo.
Ukugqitywa komphezulu kwipateni kuguqulela ngokuthe ngqo kwi-casting. Ipateni ye-epoxy ekhazimlisiweyo iya kunika umphezulu ogudileyo ngokubonakalayo kunomthi owenziwe ngoomatshini. Ukuqhuba umthamo ophezulu, iipatheni zetsimbi zihamba, kodwa kwiiprototypes okanye iifutshane ezimfutshane, i-urethane ephezulu okanye i-hardwood evalwe kakuhle ingasebenza, ngaphandle kokuba u-akhawunti yokugqoka. Isixhobo sepateni sityala-mali, kwaye umgangatho walo uchaza ukusebenza kakuhle kwayo yonke isikhunta esilandelayo.
Ukukhupha umoya yenye i-nuance enxulumene nepateni. Ipateni idinga imingxuma ebekwe ngobuchule, rhoqo izikhonkwane ezincinci okanye iingcingo, ukuvumela umoya ukuba uphume njengoko isanti ijikeleziswa kuyo. Ukuba ezi zinto zivaliwe okanye zibekwe kakuhle, ufumana iindawo ezithambileyo, ezingaxutywanga kakuhle kwi-mold, ezikhokelela kwiziphene ezidumbayo okanye ukukhutshwa ngexesha lokugalela. Yinkcukacha encinci eneziphumo ezinkulu.
Inkqubo yokugalela kunye noLawulo lokuManyaniswa
Ukugalela kwi-resin sand mold yahlukile kwi-greensand. Umngundo womelele kwaye unyangekile, ngoko ke awunako ukungunda kwesanti eluhlaza. Oku kuthetha ukuba kufuneka ulumke ngakumbi ngesango lokungena kunye noyilo lokunyuka ukunqanda iinyembezi ezishushu ekuthinteleni ukufinyela. Sihlala sisebenzisa imikhono yesikhuphukeli ephumayo ukuze sigcine isikhuphukeli sentsimbi sinyibilike ixesha elide, sondla ukugalela ngokufanelekileyo. Amandla okupholisa komngundo ukwahluka; Isanti ye-resin idla ngokuba ne-thermal conductivity esezantsi kunesanti eluhlaza exineneyo, enokuthi ichaphazele ubume bokuqina, ngamanye amaxesha ikhokelele kwingqolowa erhabaxa kancinane ukuba ayilawulwa.
Ukulawula ubushushu bentsimbi kubaluleke kakhulu. Ukugalela kushushu kakhulu kunokubangela ukusabela okugqithisileyo kwi-interface ye-mold-metal, ekhokelela ekungeneni kunye nomaleko otshisiweyo wesanti nto leyo enzima ukuyicoca. Ukugalela okupholileyo kakhulu kuyingozi kwi-mistruns kunye nokuvalwa okubandayo. Ukusatywa kwentsimbi ephakathi, sinokujolisa kwiqondo lobushushu eligalelayo malunga no-°C, kodwa oko kulungelelaniswa ubukhulu becandelo. Isibiyeli esinodonga olucekethekileyo sifuna sibe shushu ngaphezu kwebhloko eshinyeneyo.
I-shakeout kulapho enye inzuzo yesanti ye-resin ikhanya. Emva kokupholisa, ukungunda kuyawa ngokwenyani ngenxa yokuqhekeka kwe-thermal ye-resin binder. Ayinamsebenzi omninzi kakhulu kunokukhupha umngundo onzima wesanti eluhlaza. Nangona kunjalo, isanti ngoku yonakaliswe ngokushushu kwaye igqunywe ngodongwe olufileyo olusuka kwintlaka etshisiweyo. Awunako ukuphinda uyisebenzise ngokuthe ngqo. Ifuna ukulungiswa kwakhona—ukutyunyuzwa, ukukhuhlwa, kunye nokunyangwa kwe-thermal—ukuba iphinde ifakwe kwinkqubo, nto leyo eyenye indleko yokusebenza.
Izicelo zeLizwe lokwenyani kunye nokuqwalaselwa kwezinto
Ukugalelwa kwentlabathi yeresin iyagqwesa apho ufuna ukuchaneka komda, ukugqiba kakuhle komphezulu, kunye nokukwazi ukuvelisa iimilo ezintsonkothileyo kwimithamo esezantsi ukuya ephakathi. Yinto esisiseko sesiseko semisebenzi kunye namacandelo antsonkothe kakhulu okanye afuna unyamezelo olungcono kunesanti eluhlaza enokubonelela. Cinga ngemizimba yevalvu, iipompu zempompo, izixhobo zaselwandle, kunye neziseko zoomatshini.
Uluhlu lwezinto eziphathekayo lubanzi. Siyenze ngempumelelo nge-iron ductile, i-iron engwevu, i-carbon kunye ne-low-alloy steels, kunye namabakala angenasici. Nangona kunjalo, kwiintsimbi eziphezulu ze-alloy, i-super duplex stainless, okanye ezo nickel ezikhethekileyo kunye ne-cobalt-based alloys, kufuneka uqaphele kakhulu. Umoya wokungunda kunye nokubakho kwekhabhon pickup ukusuka kwisibophelelo kunokuba ngumba. Ngamanye amaxesha inkqubo yesibophelelo eyahlukileyo, njenge-alkaline phenolic, ikhethwa kwezi alloys ezisebenzayo ukunciphisa ukungcoliseka komhlaba. Inkampani enamava ezinto ezinzulu, njenge Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), esebenze kunye ne-cobalt kunye ne-nickel-based alloys iminyaka, iya kuqonda ezi zinto zifihlakeleyo ngokusondeleyo. Ukugxila kwabo kwexesha elide kubuchule bokuphosa kunye noomatshini kuthetha ukuba baye bajongana nale miceli mngeni yokudibana kwesixhobo kuzo zonke iinkqubo zabo ezahlukeneyo, ukusuka ekubumbeni iqokobhe ukuya. ukugalelwa kwentlabathi ye-resin.
Kwakhona kubalulekile ukuqaphela ukuba ngelixa ukugalelwa kwentlabathi ye-resin iyaguquguquka, ayisoloko ilolona khetho lusezantsi kakhulu, iindawo ezilula. Iindleko zesibophelelo kunye neendleko zokubuyiselwa kwesanti zithetha ukuba ixabiso leqhekeza lesanti liphezulu kunesanti eluhlaza. Ngoko ukusetyenziswa kwayo kuthetheleleka ngexabiso elongeziweyo ngokuchaneka kunye nobunzima. Ngesigqubuthelo somngxuma esilula? Sebenzisa isanti eluhlaza. Kwiprototype yebhlokhi ye-injini eneebhatyi zamanzi ezintsonkothileyo? Kulapho isanti ye-resin ingena yodwa.
Izifundo ezivela kuMgangatho kunye neMveliso eDityanisiweyo
Esinye sezifundo ezinkulu kukuba ukuphosa kunqabile ukuba linyathelo lokugqibela. Indlela inxalenye ephuma ngayo kubumba ichaza iindleko kunye nokuba nokwenzeka komatshini. A eyilwe kakuhle ukugalelwa kwentlabathi ye-resin Inkqubo kufuneka ijolise kwimilo ekufutshane nenetha, ukunciphisa isitokhwe somatshini. Oku kufuna intsebenziswano esondeleyo phakathi kwe-Foundry kunye nevenkile yomatshini. Imigca yokwahlula ebekwe kakubi okanye ubukhulu bodonga obungahambelaniyo bunokubangela amaphupha amabi ekulungiseni nasekunxityweni kwesixhobo ngexesha lokusebenza kwe-CNC.
Kungenxa yoko le nto imodeli yomenzi odibeneyo ethe nkqo inamandla. Inkampani ephethe zombini ukuphosa kunye nomatshini ochanekileyo phantsi kophahla olunye, njengoko QSY yenza, inokwandisa lonke uhambo lomsebenzi. Iqela le-Foundry liyawazi amandla kunye nezithintelo zoomatshini be-CNC kwelinye icala lodonga, kwaye ngokuphambene noko. Banokuyila inkqubo yokuphosa-kubandakanya ukugayiwa, ukunyuka, kunye nokubekwa okungundoqo-ngobuchule engqondweni. Banokuqinisekisa ukuba imiphezulu yedatum ebalulekileyo iphoswe icocekile kwaye ithe tyaba ngokwaneleyo ukuba isetyenziselwe ukulungiswa. Le synergy yinto esisiseko esizimeleyo okanye ivenkile yomatshini esokola ukuyiphindaphinda. Unokufunda ngakumbi malunga nendlela yabo edibeneyo yokuphosa kunye nokugqiba kwindawo yabo https://www.tsingtaocnc.com.
Okokugqibela, musa ukungayihoyi imiba yokusingqongileyo kunye nokhuseleko. I-Furan resins ikhupha i-formaldehyde ngexesha lokuxuba kunye nokuthulula. Ukungena komoya okufanelekileyo kunye nePPE azithethisani. Isanti echithiweyo, ukuba ayibuyiselwa, iba ngumba wokulahlwa. Iziseko zanamhlanje zihambela kwiinkqubo zokubopha ezihambelana nokusingqongileyo, kodwa zihlala ziza kunye norhwebo kwindleko okanye ukusebenza. Sisenzo esingagungqiyo sokulungelelanisa phakathi kweemfuno zobugcisa, uqoqosho, kunye nokuthotyelwa kwemithetho.
Ngoko ke, xa ujonga a ukugalelwa kwentlabathi ye-resin, awujongi nje inxalenye yentsimbi. Ujonge isiphumo samakhulu ezigqibo ezincinci- malunga nekhemistri, ubushushu, ixesha kunye noyilo. Ukuyilungisa kuvakala kuncinci njengokulandela iresiphi kwaye kufana nokudlala iokhestra apho isixhobo ngasinye sinomsindo kancinane. Kodwa xa zonke zidibana, ukuchaneka kunye nobunzima onokuthi ukufezekise koko kugcina le nkqubo ineminyaka engamashumi eminyaka ifanelekile kwimveliso yanamhlanje.
