I-Casting coating yimpahla encedisayo efakwe kwi-mold okanye i-core, edlala indima ebalulekileyo ekuphuculeni umgangatho wendawo yokuphosa.Iingcibi zaseTshayina zangaphambili, ngaphezu kweminyaka engama-3000 eyadlulayo, zilungiselele kwaye zasebenzisa ngempumelelo ukutyabeka, ukwenza igalelo elibalulekileyo kuphuhliso lobugcisa bokuphosa.
Ngophuhliso lwemveliso kunye netekhnoloji, iimfuno zomgangatho wokuphosa ziyanda imihla ngemihla.Ukuze kwandiswe ukukhuphisana kweemveliso zabo, iziseko ezininzi zizinikela kuphando lweengubo zokwaleka ngenxa yeengxaki zemveliso.
Oku kulandelayo, ngokufutshane malunga nokugalelwa kweengxaki ezininzi.
Okokuqala, umxholo oqinileyo kunye namandla okugquma
Ngoku, i-coating esetyenziselwa isanti ebotshiweyo yentlabathi ifuna umxholo wayo ophezulu oqinileyo kunye namandla aphezulu, okubangelwa ubukhulu becala imiba emibini.
1. Ziqhelanise neempawu zokungunda kwesanti
Ngaphambili, isanti yodongwe emanzi uhlobo lwesanti ayipeyinti, ipeyinti yayisetyenziselwa kuphela uhlobo lwesanti yodongwe eyomileyo.Ngenxa yamandla entlabathi yodongwe uhlobo eyomileyo liphantsi kakhulu, kwaye ukwenza castings kubalulekile okanye castings ezinkulu, imfuneko yokwaleka hayi kuphela ukwenza umaleko ukwahlula, kwaye ifuna nokungeniswa ephosa ukutyabeka umphezulu ezi zilandelayo, best. ebandakanya i-3 ~ 4 isanti, yenza umphezulu wokubumba uphuculwe, ngoko ke, i-viscosity yepeyinti ayinakukwazi ukuphakama kakhulu, umxholo oqinileyo awuphezulu kakhulu.
2. Ukuqwalasela ukonga umbane, ukukhuselwa kwendalo kunye nokunciphisa iindleko zemveliso
Izithwali zolwelo ezisetyenziswa kwiingubo, ikakhulu amanzi kunye neealkoholi.I-20 yeenkulungwane 70 ~ 80 ixesha, esetyenzisiweyo akudingi komiswa okanye ukuvutha, kunokutshintsha i-chlorine evelisa i-hydrocarbons, njenge-dichloromethane, njengomphathi wepeyinti.Ngenxa yobutyhefu bayo, impembelelo yayo engalunganga kwimekobume njengoko iphuphuma emoyeni, kunye neendleko zayo eziphezulu, ngoku ayisetyenziswa kakhulu.
Okwesibini, izinto ezisetyenziselwa ukugquma
Kukho iintlobo ezininzi zezinto ezisetyenziselwa ukuphosa, kwaye ziya kuxhaswa rhoqo ngesiseko sophuhliso lweshishini lezinto eziphathekayo.
1. i-refractory aggregate
I-refractory aggregate iyona nxalenye ephambili yokwaleka, kwaye umgangatho wayo kunye nokukhethwa kwayo kunempembelelo enkulu kwimpembelelo yokusetyenziswa kwengubo.Ngelo xesha, xa sikhetha i-aggregate, kufuneka kwakhona senze uhlalutyo olubanzi ngakumbi kucoceko lwezoshishino kunye noqoqosho.
2. umthwali,
Abathwali abaphambili abasetyenziselwa ukuphosa iingubo ngamanzi, i-alcohol kunye ne-chlorinated hydrocarbons.Okwangoku, ngenxa yoqwalaselo lwexabiso kunye nemiba yokusingqongileyo, esetyenziswa kakhulu kwi-chlorine hydrocarbon njengomphathi we-coating, ngokubanzi i-coating esekelwe emanzini kunye ne-alcohol based based coating.
Ixesha lokuposa: Jan-10-2022