Casting yog txheej txheem ntawm cov hlau ziab thiab ua, uas feem ntau siv cov khoom sib tsoo ntawm cov hlau nrum rau hauv pwm. Tab sis" txhuas tuag casting" tsis ua tiav los ntawm kev nqus, tab sis los ntawm qee qhov ntsuas ntawm lub siab. Nws' s hom zoo li" txhaj tshuaj molding." ;. Tab sis nws muaj txheej txheej ntawm cov tub ntxhais rub, txias thiab lwm lub tshuab nrog cov ntsiab lus siab. Feem ntau hais lus, cov khoom raug xa mus rau kab noj hniav kom pov los ntawm lub qhov rooj nkag nruab nrab rau cov ntu.
qhov zoo dua
1. Cov khoom lag luam zoo: qhov siab me me ntawm qhov nruas, feem ntau sib npaug nrog qib 6-7 lossis txawm tias qib 4; zoo nto tiav, feem ntau sib npaug rau qib 5-8; siab lub zog thiab tawv, feem ntau 25-30% siab dua li ntawm cov xuab zeb casting, tab sis elongation txo los ntawm li 70%; ruaj khov loj thiab hloov mus tau zoo; nws tuaj yeem siv rau casting txhuas-walled complex castings. Piv txwv, tsawg kawg phab ntsa tuab ntawm zinc alloy tuag casting txhuas qhov chaw tuaj yeem ncav cuag 0.3 hli; aluminium alloy casting tuaj yeem ncav cuag 0.5 hli; qhov tsawg kawg nkaus casting qhov taub yog 0.7 hli; lub suab yam tsawg kawg nkaus yog 0.75 hli.
2. Kev ua tau zoo ntau lawm: lub tshuab ua haujlwm siab, piv txwv li, hauv tsev J Ⅲ 3 kab rov tav cua txias tuag casting tshuab txhuas tuaj yeem tuag 600-700 zaug ntawm txhuas hauv yim teev, thiab lub tshuab kub me me txhuas tuag-casting tshuab tuaj yeem tuag- casting aluminium 3000-7000 zaug txhua yim teev; cov kev pab cuam lub neej ntawm tuag-casting aluminium pwm yog ntev, nkawm ntawm tuag-casting txhuas pwm, tuag-casting aluminium moos alloy, kev pab lub neej tuaj yeem ncav cuag ntau pua txhiab lub sij hawm, txawm ntau lab lub sijhawm; nws yog qhov yooj yim kom paub txog kev siv tshuab thiab kev siv tshuab.
3. Qhov kev lag luam zoo: vim yog qhov ntau thiab tsawg ntawm qhov tuag casting aluminium qhov chaw, qhov saum npoo ci thiab huv si. Feem ntau, nws tsis yog siv rau kev kho tshuab, lossis tus nqi ua tiav yog tsawg heev, yog li nws tsis tsuas yog txhim kho kev siv hlau, tab sis tseem txo cov khoom siv hauv kev ua thiab cov sijhawm ua haujlwm ntau; tus nqi casting yog pheej yig; ua ke tuag-casting txhuas tuaj yeem siv nrog lwm cov hlau lossis cov hlau tsis yog hlau. Nws tuaj yeem txuag lub sijhawm sib dhos thiab cov hlau.
