Ntseeg tias ntau tus phooj ywg txhua tus yuav ib rab riam hauv chav ua noj lossis pom cov riam hauv chav ua noj, tab sis rau kev tsim cov riam hauv chav ua noj yuav tsis meej pem, cov khoom siv no puas zoo?
Cov khoom no yog dab tsi?
Puas yog stainless hlau?
Los yog hlau?
Tsis txhob txhawj, me me ua rau koj ua ntej qhia chrome steel (
cr)
, qhov sib txawv ntawm tom qab uas ntau qhuav khoom nyob rau hauv.
1, peb chrome steel: carbon (
C)
Accounted rau 0.
28 -
0.
35%, muaj chromium (
Cr)
12.
8 -
13.
5% ntawm cov khoom xyaw.
Tom qab kev kho cov roj quenching, hardness tuaj yeem ncav cuag 54 -
56 HRC.
Cov khoom lag luam steel nta: ntse, Yi Fu sib tsoo, tsis yooj yim rau xeb.
2, 4 chrome hlau, carbon,
C)
Accounted rau 0.
35 -
0.
45%, muaj chromium (
Cr)
12.
8 -
13.
5%, molybdenum (
Mo)
0.
5% vanadium yog '
(五)
0.
3 -
0.
5% ntawm cov khoom xyaw.
Lub forging tom qab tshav kub expansion, hardness yuav mus txog 56 -
58 HRC.
Cov khoom lag luam steel nta: ntau ntse, xeb thiab tawv, tsis yooj yim tawg nkig, zoo dua, Yi Fu sib tsoo nplej.
3,5 chrome hlau, carbon,
C)
0.
68 -
0.
75%, muaj chromium (
Cr)
16.
7 -
17.
5%, molybdenum (
Mo)
0.
5% ntawm cov khoom xyaw xws li;
Tom qab kev kho roj quenching, 58 - hardness tuaj yeem ua tiav
60 HRC.
Cov khoom lag luam steel nta: ntau zog thiab ntse, ruaj, xeb thiab siab toughness.
