Tus yuam sij rau cov txheej txheem magnesium alloy melting yog nplaim hluav taws tiv thaiv, ua raws li kev kho kom zoo kom tshem tawm cov hlau thiab tsis yog hlau impurities, slag inclusions, thiab teeb meem gases los ntawm magnesium alloy yaj.
(1) Kev npaj ua haujlwm
Npaj tag nrho cov cuab yeej, tshuaj xyuas lub crucible, ntxuav lub slag thiab lwm yam khib nyiab nyob rau hauv lub cub tawg, tshuaj xyuas cov hlau tsis kam, xyuas kom meej tias qhov ntsuas kub ntsuas thermocouple nyob rau hauv txoj hauj lwm zoo, thiab xyuas kom meej tias cov hluav taws xob tswj thiab tsis siv neeg kub tswj yog qhov qub, rhiab thiab raug;
(2) Preheating ntawm crucibles thiab cov khoom siv rauv
Preheating cov khoom siv rau hauv qhov cub kom tshem tawm cov dej noo, tiv thaiv kev nyab xeeb xws li tawg, thiab txo qhov nce ntawm cov roj cov ntsiab lus coj mus rau hauv cov kua alloy los ntawm cov dej noo hauv cov khoom siv hauv lub cub tawg.
(3) Cov khoom siv melting
Ntxiv preheated rauv khoom rau lub preheated crucible thiab kub nws mus rau yaj.
(4) Alloying thiab refining
Tom qab qhov kub nce siab tshaj qhov kub melting, ntxiv qhov nruab nrab alloy rau magnesium ingot thiab do kom huv si
Sib tov sib npaug, tom qab ntawd kub mus rau qhov tsim nyog qhov kub thiab txias, thiab sprinkle refining tus neeg sawv cev rau hauv lub yaj rau refining. Tus yuam sij rau cov txheej txheem no yog tswj cov nyiaj ntawm cov alloy ntxiv thiab qhov kub thiab txias, uas yog txiav txim siab los ntawm ntau hom alloys.
(5) Cia nws nyob twj ywm
Lub hom phiaj ntawm kev teeb tsa cov txheej txheem yog kom precumation impurities nrog ntau dua cov kua roj ntau, yog li ntawd nws yog qhov tsim nyog los tswj qhov kub thiab lub sijhawm ntawm kev tswm.
(6) Casting
Tom qab kev teeb tsa, nqa cov qauv rau kev txheeb xyuas. Thaum cov muaj pes tsawg leeg tsim nyog, tswj qhov kub thiab txias rau casting.
Kev tiv thaiv nplaim taws yuav tsum tau nqa tawm thoob plaws hauv tag nrho cov txheej txheem melting, thiab cov txheej txheem tiv thaiv muaj xws li: npog cov yaj nrog ntsev cov kuab tshuaj thiab txuas ntxiv ntxiv; Ua cov yaj nyob rau hauv ib qho chaw ntawm cov roj sib xyaw tiv thaiv los ua ib txheej tiv thaiv nyias ntawm nws. Txoj kev siv tshwj xeeb yog nyob ntawm cov txheej txheem tsim khoom.