Cov txheej txheem casting ntawmsilicon tooj liab: melting thiab pouring.Silicon bronze yog smelted nyob rau hauv ib tug acid induction rauv.Tus nqi yuav tsum tau preheated rau 150 ~ 200 ℃ ua ntej muab tso rau hauv lub cub tawg, thiab cov electrolytic tooj liab yuav tsum tau ntxuav, roasted ntawm kub kub thiab kom huv si deoiled ua ntej siv.Cov ntsiab lus ntawm Si yog 3.1%, Mn yog 1.2%, thiab tus so yog Cu, ntxiv rau Fe yog 0.25% thiab Zn yog 0.3%.Kev txiav txim pub mis: ua ntej ntxiv 0.5% flux (boric acid + iav) ntawm tus nqi them, ntxiv crystalline silicon, manganese hlau thiab electrolytic tooj liab, nce qhov kub ntawm 1250 ℃, ntxiv hlau thiab zinc, kom txog rau thaum qhov kub nce mus txog 1300 ℃, tuav rau 10 min, ces coj mus kuaj thiab ncuav rau hauv cov xuab zeb pwm kuaj thaiv.Yog tias qhov kev sim thaiv kev nyuaj siab nyob rau hauv nruab nrab tom qab txias, nws txhais tau hais tias cov hlau yog ib txwm, slag scraping tawm ntawm qhov cub thiab npog nrog perlite los tiv thaiv oxidation thiab kev tshoov siab.
Qhov ntsuas kub yog 1090 ~ 1120 ℃.Rau qhov loj nyias-walled qhov chaw, nws raug nquahu kom siv cov kev txhaj tshuaj sab saum toj lossis sab txhaj tshuaj kauj ruam gating system.Thaum lub ncuav kub tshaj 1150 ℃, kub tawg yog ib qho yooj yim tshwm sim, thaum lub pouring kub yog qis dua 1090 ℃, undercasting tsis xws luag yog yooj yim tshwm sim.
Piv nrog tin bronze (Sn 9%, Zn 4%, Cu), qhov sib txawv ntawm silicon bronze yog 55 ℃, thaum lub tin bronze yog 146 ℃, yog li nws cov fluidity yog siab dua li ntawm tin bronze.Nws tuaj yeem pom tias silicon bronze ntau dua li tin bronze ntawm tib lub qhov kub thiab txias.
Kev vuam kev ua tau zoo ntawm silicon bronze, vuam kev ua tau zoo ntawm ntau yam tooj liab alloys tau muab faib ua 4 qib raws li lawv qhov zoo thiab qhov tsis zoo, qib 1 zoo heev, qib 2 yog qhov txaus siab, qib 3 yog weldable los ntawm cov txheej txheem tshwj xeeb, qib 4 tsis txaus siab, Tin bronze qib 3 yog qib 1.
Piv nrog rau lwm cov tooj liab alloys, silicon bronze muaj qis thermal conductivity thiab tsis xav tau preheating ua ntej vuam, tab sis nws muaj thermal brittleness nyob rau hauv thaj tsam ntawm 815 ~ 955 ℃.Txawm li cas los xij, yog tias cov phaj cam khwb cia yog qhov zoo, uas yog, cam khwb cia phaj tom qab tau txais kev txhim kho kev ntsuas, kev xyaum tau ua pov thawj tias kub tawg yuav tsis tshwm sim hauv cheeb tsam no.
Silicon bronze tuaj yeem yog roj vuam, arc vuam, phau ntawv TIG vuam thiab MIG vuam.
Post lub sij hawm: Aug-04-2022