Umgangatho we-bentonite ubaluleke kakhulu kwimveliso ye-castings kwi-casting, kwaye umgangatho we-bentonite unempembelelo esondeleyo kumphezulu kunye nomgangatho wangaphakathi wokuphosa.Ukusetyenziswa kwe-bentonite ekumgangatho ophezulu kwimisebenzi yokuphosa kuya kwandisa kakhulu amandla, ukuqina kunye nokunyanzeliswa komoya, ukunciphisa umthamo wamanzi wesanti yokubumba, ukuphucula ngokufanelekileyo ukugqitywa komphezulu kunye nokuchaneka kwe-castings, kunye nokusombulula iingxaki zomgangatho oqhelekileyo phezu komhlaba. ukubunjwa kwesanti, okufana nokuhlanjwa kwesanti, ukufakwa kwesanti, umngxuma wesanti, isanti encangathi, imingxuma, imingxuma edilikayo kunye nothotho lweziphene.Kuphuhliso lwanamhlanje olukhawulezayo lwemizi-mveliso, i-bentonite njengolungiselelo lodongwe lokubumba isanti iseyeyona nto ikhethwayo yokubumba kushishino lokugalela.
I-Bentonite ineemfuno zokusebenza kwezoshishino zokuphosa
I-viscosity adhesion ye-bentonite iyisitshixo sokulinganisa umgangatho we-bentonite yokuphosa, efuna ukucoceka okuphezulu kwe-montmorillonite, ubukhulu be-particle (95% ngokusebenzisa i-200 mesh sieve), kunye nenkqubo yokulungisa i-sodium, ukwenzela ukuba inani elincinci lesanti yokubumba. inokufumana amandla oxinzelelo aphezulu omanzi.
(1) Isetyenziswa njengesibophelelo sokubumba sesanti
I-Bentonite ine-viscosity enkulu kakhulu, i-plasticity ephezulu, amandla amahle, ixabiso eliphantsi, kwaye inokwenza isanti yokubumba i-casting ifakwe ngokukhawuleza.
(2) Ukwandisa iplastiki yokuphosa
Isetyenziswe njenge-binder ye-sand binder material, i-bentonite inokuphucula i-plasticity ye-castings, kwaye inokuthintela ngokufanelekileyo iziphene zemveliso ye-castings, ezifana: inokuthintela ukufakwa kwesanti, i-scarring, i-lump dropping, ukuwa kwesanti.
(3) Ukusetyenziswa kwakhona okulungileyo kunye neendleko eziphantsi
Ekukhethweni kweemodeli, sincoma ukusetyenziswa kwe-bentonite eyenziwe nge-sodium esekelwe kwi-sodium, kuba izikhombisi ze-sodium-based bentonite zinamandla kakhulu kune-bentonite esekelwe kwi-calcium, njengale: ukumelana nokushisa kunye nokuzinza ngenxa ye-bentonite esekelwe kwi-calcium.Ngoko ke, nasemva kokuba ingxowa ye-sodium bentonite ipholile ngokupheleleyo kwaye yomiswe kwiqondo lokushisa eliphezulu, isenamandla okubambelela okuqinileyo xa amanzi eyongezwa okwesibini, kwaye isenokuqhubeka isetyenziswa njenge-binder yesanti yokubumba. ngenxa yokusetyenziswa kwakhona okunamandla kunye neendleko eziphantsi, ngoko i-sodium bentonite ikhethwa kuqala njengento ekhethiweyo kwinkqubo yokuphosa.
(4) Ithamo lincinci, kwaye amandla okuphosa aphezulu
I-Bentonite ine-adhesion eqinile kunye ne-dosage encinci, yongeza i-5% ye-sodium-based bentonite ephezulu kwisanti yokuphosa inokunciphisa kakhulu umxholo wodaka lwesanti ephosayo, ngakumbi amathuba okuba izinto zokufunxa amanzi, umlotha kunye ne-porosity kwisanti yokubumba iya kuba. kuncitshiswe ngokufanelekileyo, kwaye amandla okuphosa aya kwandiswa kakhulu.
(5) Ukuphucula imveliso kunye neenzuzo zoqoqosho zamashishini asisiseko
Xa usebenzisa i-bentonite ephezulu yokuvelisa i-castings, umxholo osebenzayo we-bentonite we-5% ~ 6% kwisanti endala yanele, kwaye i-1% ~ 2% inokudibaniswa rhoqo xa ixutywa.Itoni nganye ye-bentonite ephezulu inokuvelisa i-10 ~ 15 t castings kumgca wokuvelisa oomatshini.
Ewe, isicelo kunye nendima ye-bentonite ekukhupheni konke kufakwe apha, ndiyathemba ukuba unokubhekisela kuyo xa uqonda i-bentonite, i-multi-purpose non-metallic mineral clay, ekufundeni okunzulu.