Cov yam ntxwv ntawm cov hlau cam khwb cia:
(1) Qhov chaw ntxhib: Lub qhov chaw nchuav dej feem ntau yuav tiaj tus thiab deformation thiab poob ntawm qhov puag ncig thaum siv, uas cuam tshuam rau qhov sib tsoo;
(2) Sab hauv xoob: Vim yog txoj kev casting molding, cov qauv sab hauv ntawm lub pob yog ntxhib, nrog rau qhov tawg siab thiab qhov cuam tshuam tsawg thaum siv. Lub pob loj dua thiab lub zeb loj dua, qhov muaj feem ntau ntawm kev tawg;
(3) Tsis haum rau kev sib tsoo ntub: Qhov kev tiv thaiv hnav ntawm cov pob cam khwb cia nyob ntawm cov ntsiab lus chromium. Cov ntsiab lus chromium siab dua, qhov hnav-resistant ntau dua. Txawm li cas los xij, tus yam ntxwv ntawm chromium yog tias nws yooj yim rau corrode. Cov chromium siab dua, qhov yooj yim dua rau corroded, tshwj xeeb tshaj yog cov chromium hauv cov ore. Sulfur, vim yog kev siv cov pob chromium nyob rau hauv cov xwm txheej sib tsoo ntub saum toj no, tus nqi yuav nce thiab cov zis yuav txo qis.
Cov yam ntxwv ntawmua los ntawm hlaucov hlau pob:
(1)Qhov nto du: Tsim los ntawm kev forging txheej txheem, qhov chaw tsis muaj qhov tsis zoo, tsis muaj deformation, tsis muaj kev poob ntawm qhov puag ncig, thiab tswj tau qhov sib tsoo zoo heev.
(2)Sab hauv nruj: Vim tias nws yog forged los ntawm cov hlau puag ncig, qhov tsis zoo uas tshwm sim los ntawm cov txheej txheem hauv lub xeev cam khwb cia raug zam. Qhov ceev sab hauv yog siab thiab qhov zoo yog siab, uas ua rau lub pob tsis kam poob thiab cuam tshuam toughness, yog li txo qhov tawg ntawm lub pob.
(3)Ob qho tib si qhuav thiab ntub sib tsoo yog ua tau: Vim yog siv cov hlau alloy zoo thiab cov khoom siv tiv thaiv kev hnav tshiab uas peb lub tuam txhab tsim tawm, cov ntsiab lus alloy yog qhov sib piv zoo thiab cov ntsiab lus tsis tshua muaj ntxiv los tswj cov ntsiab lus chromium, yog li txhim kho nws txoj kev tiv thaiv corrosion. Txhim kho, lub pob hlau no zoo dua rau cov xwm txheej ua haujlwm uas cov mines feem ntau yog ntub sib tsoo.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-20-2023
