Tuam Tshoj OEM kev cai nqus casting cua ntsawj ntshab iav vaj tse ntawm hlau hlau.
Nqus Casting tseem hu ua Negative Pressure Sealed Casting, Reduced Pressure Casting lossis V Process Casting. Lub tshuab nqus tsev siab casting yuav tsum tau siv cov cuab yeej siv cua tshem tawm kom tshem tawm cov huab cua hauv cov pwm pwm, thiab tom qab ntawd siv qhov sib txawv ntawm qhov sib txawv ntawm cov pwm sab hauv thiab sab nraud los npog cov yas zaj duab xis rau cov qauv thiab cov qauv. Lub casting pwm yuav muaj zog txaus los tiv thaiv cov hlau molten thaum lub sij hawm casting. Tom qab tau txais lub tshuab nqus tsev pwm, sau lub thawv xuab zeb nrog cov xuab zeb qhuav yam tsis muaj binder, thiab tom qab ntawd muab cov xuab zeb ntim rau saum npoo nrog cov yas zaj duab xis, ua raws li lub tshuab nqus tsev kom cov xuab zeb ruaj khov thiab nruj. Tom qab ntawd, tshem tawm cov pwm, muab cov xuab zeb cores, kaw lub pwm kom txhua yam npaj txhij rau pouring. Thaum kawg, lub casting yog tau tom qab lub molten hlau yog txias thiab solidified.
Qhov zoo ntawm Vacuum Casting txheej txheem
1) Lub tshuab nqus tsev castings muaj qhov tseeb qhov tseeb, cov qauv qhia meej thiab du nto.
Vim tias qhov saum npoo ntawm tus qauv yog npog nrog cov yas zaj duab xis, tsis tas yuav vibrate lossis khob thaum rub lub pwm. Lub suction thiab tsis zoo siab ua rau cov xuab zeb molding compact, thiab hardness ntawm cov xuab zeb pwm yog siab thiab uniform. Nyob rau hauv lub tshav kub ntawm molten hlau, cov kab noj hniav tsis yooj yim rau deform. Tsis tas li ntawd, qhov muaj nyob ntawm qhov tsis zoo siab yog qhov tsim nyog rau kev sau tag nrho ntawm cov hlau molten rau hauv cov qauv. Qhov nto roughness ntawm V txheej txheem castings tuaj yeem ncav cuag Ra = 25 ~ 2.5μm. Qhov siab kam rau ua theem ntawm castings tuaj yeem ncav cuag CT5 ~ CT7. Cov tsos zoo ntawm qhov tsis zoo siab castings yog qhov zoo, thiab qhov zoo ntawm sab hauv yog txhim khu kev qha.
2) Tsis muaj binders, dej thiab additives hauv cov xuab zeb molding, uas ua rau cov xuab zeb ua tau yooj yim.
3) Nws yog qhov yooj yim los ntxuav lub tshuab nqus tsev castings. Tsawg cov pa phem raug tsim tawm thaum lub sij hawm casting txheej txheem.
4) Lub tshuab nqus tsev castings tuaj yeem siv rau ntau qhov kev lag luam. Nws tuaj yeem siv rau ib qho me me batch ntau lawm thiab ntau lawm, tshwj xeeb tshaj yog loj thiab nruab nrab castings thiab nyias-walled castings yog tsim nyog rau lub tshuab nqus tsev casting.
