Hlau Foam Foundry Lim-Piv rau Lwm Txoj Kev Lim

Barbed hlau lim

Vim hais tias cov hlau mesh lim muaj ib qho kev ruaj ntseg lim cov nyhuv thiab tus nqi qis, nws occupies ib qho chaw nyob rau hauv cov tsoos casting txoj kev.

Txawm li cas los xij, nws inevitably nce cov ntsiab lus ntawm Fe nyob rau hauv cov kua aluminium alloy, nws yuav muaj kev cuam tshuam tsis zoo rau cov khoom siv ntawm cov khoom. Nyob rau hauv tas li ntawd, nyob rau hauv tus txheej txheem ntawm kev nruam zus tau tej cov tuag casting, nws yog ib qhov nyuaj rau zoo tshem tawm cov barbed hlau ua ntej lub casting yog kiag li solidified, thiab nws yog ib qhov nyuaj rau muab pov tseg lub pouring riser nqi uas muaj ib tug loj npaum li cas ntawm hlau.

Nws yog ib qho teeb meem thorny rau yuav ua li cas ncaj qha nqa tawm cov nqi qis dua thiab rov ua dua kom txo tau cov ntsiab lus hlau ntawm cov yaj.

iav fiber ntau lim

Nyob rau hauv cov nqe lus ntawm interception nyhuv, cov nyhuv ntawm fiber mesh thiab barbed hlau nrog tib mesh yog zoo sib xws. Raws li cov khoom siv lim qis qis, iav fiber ntau lim muaj cov txheej txheem zoo hloov tau.

Cov kev tshawb fawb soj ntsuam tau pom tias txawm tias lub iav fiber ntau lim nrog ib qho me me ntawm cov resin yuav tsim ib qho roj av nyob rau hauv qhov kub thiab txias ntawm alloy casting. Nyob rau tib lub sijhawm, vim yog cov yam ntxwv ntawm cov khoom siv, cov nyhuv lim ntawm fiber ntau mesh ntawm impurities tsis zoo heev, uas yuav ua rau muaj qee yam tsis xws luag xws li pinholes thiab oxide slag qhov hauv qhov casting.

Tsis tas li ntawd, iav fiber ntau yog nkig, muaj kev hnav tsis zoo, thiab tsis zoo ductility. Cov iav fiber ntau tau yooj yim puas, yog li ceev faj heev thaum hloov lawv.

Ua npuas ncauj ceramic lim

Kev siv ua npuas ncauj ceramics rau hauv-pwm pom thiab pom ntawm txhuas alloy kua hauv cov txheej txheem nruab nrab yog ib txoj kev pom zoo ua ntej qhov tshwm sim ntawm cov ntaub ntawv ua npuas dej tshiab. Tam sim no, qhov porosity ntawm ceramic ua npuas ncauj tuaj yeem ncav cuag 70-90 feem pua, thiab nws tau siv dav hauv aluminium castings, tooj liab castings, thiab hlau castings. Lub hauv paus ntsiab lus ntawm kev siv ua npuas ncauj ceramics los lim yog tshem tawm cov slag hauv cov kua alloy los ntawm adsorbing cov pa roj hauv cov kua alloy thiab mechanically intercepting impurities nyob rau hauv cov txheej txheem ntawm cov kua alloy dhau los ntawm cov pores zoo, yog li txo qhov tsis xws luag hauv castings thiab txhim kho cov khoom. zoo li zoo ntawm castings thiab mechanical zog.

Txawm li cas los xij, lub zog ntawm foamed ceramics feem ntau yog nyob ntawm qhov tuab ntawm cov khoom siv ceramic thiab lub cev pob txha, yog li nws muaj kev txwv hauv kev siv tshuab. Tsis tas li ntawd, qhov tsis zoo ductility ntawm cov khoom ua rau muaj qhov tshwm sim ntawm crushing thiab tus nqi siab ntawm slag poob.