Thetse thletnak: Valve industry ah hman tawnmi thetse thletnak cu thetse phunphun ah tthen khawh a si, cu hna cua lummi thetse, a ro cangmi thetse, ti thlalang thetse le furan resin a kio lomi thetseaa dangmi binder ning in.
(1) Thetse hring cu sernak lam pakhat a si i cu ah cun bentonite cu riantuannak ah aa pehtlaimi ah hman a si. A sining hna cu: a dih cangmi thetse cawhmi cu a ro a hau lo asiloah a hleiin a harmi thlopnak a tuah a hau lo, thetse cawhmi cu a lummi thazaang tlawmpal a ngei, cun thetse hrampi le a hnah cu a ttha deuhmi hnatlaknak an ngei, cucu thianhnak le tlaknak thetse caah a ttha. Molding chuah khawhnak tthatnak a sang, chuah khawhnak caan tawite a si, cun thilri man zong a niam, cucu assembly line chuah khawhnak tawlrelnak caah a fawi. A chiatnak hna cu: thletmi thilri hna cu a rawkmi hna, thetse aa telmi le a nemmi thetse tibantuk tlamtlinlonak a chuahter tawn, cun thletmi thilri hna an tthatnak, a hlei in a chunglei tthatnak cu a za lo.
(2) A ro cangmi thetse cu vutcam kha hrennak ah hmangin model sernak a si, cun bentonite tlawmpal nih a lummi thazaang kha a tthanchoter khawh. A sining hna cu: vutcam cawhmi cu a ro a hau, thli a luh khawhnak le thli a tthencheunak a ttha, vutcam tawlnak, vutcam aa hngatmi le a hnah hna tibantuk tlamtlinlonak chuahter a fawi lo, cun a chunglei tthatnak zong a ttha ngai. A chiatnak hna cu: thetse hnimhnak thilri a herh, cun chuah caan cu a sau ngai.
(3) Sodium silicate thetse cu ti thli kha hrennak caah hmangin sernak lam a si. A sining hna cu: ti thlalang nih CO2 a ton hnu ah amah tein a har khawhnak rian a ngei, cun gas harternak modeling le core sernak ah thatnak le tthatnak phunphun a ngei kho. Sihmanhsehlaw, a ttha lomi vutcam a rawk khawhnak, thletnak caah thetse thianhnak ah harnak, le hmanmi thetse hman tthannak a niam tibantuk thatlonak hna an um.
(4) Furan resin no-bake sand molding cu furan resin kha binder ah hman in thletnak lam a si. Innchung lumnak ah, a tthawntermi thetse cu a tthawntertu thilri riantuannak tangah a ummi thilri nih a tuahmi chemical reaction ruangah a tthawnter. A sining hna cu: thetse hnimhnak cu a ro a hau lo, cu nih cun thilchuah caan kha a tawiter ngaingai i thazaang a khamh. Resin sernak vutcam cu a tlawm deuh i a tlu kho, cun thletnak vutcam zong fawi tein thianh khawh a si, thletnak hna i an tahnak a dikthliar a sang, cun a cunglei a ttha, cu nih cun thletnak hna i an tthatnak kha tampi a tthanchoter khawh. A chiatnak hna cu: a rawkmi thetse caah a herhmi tthatnak zong a sang, chuahnak hmun cu a tlawmpal a fahtermi rim a ngei, cun vutcam man zong a sang. Furan resin amah tein a harmi thetse cawhnak: Resin amah tein a harmi thetse cu pehzulh tein thetse cawhnak in tuah a ṭha deuh, a rawkmi thetse, resin, curing agent, tbk. kha aa thleng lengmang in cawh in rang tein cawh. Cawh law zeitik caan paoh ah hman. Resin thetse cawh tikah thilri phunphun chap ning cu a tanglei bantuk in a si: a hramthawk thetse + a tthawntertu thilri (p-toluenesulfonic acid ti cawhmi) – (120-180S) – resin + silane – (60-90S) – thetse (5) A tlangpi in thetse phun Casting chuah ning: a dikthliar in cawhnak.
Post caan: Aug-17-2022
