Rumayso in saaxiibo badan oo dhan ay iibsadeen mindi jikada ama ay arkeen mindida jikada, laakiin wax soo saarka birta mindida jikada ayaa lagu wareeri doonaa, qalabkani waa mid wanaagsan?
Waa maxay agab kani?
Ma bir aan bir lahayn?
Mise birta?
Ha werwerin, isqurxin yar ayaa marka hore soo saarta birta chrome (
cr)
, farqiga u dhexeeya alaabada qallalan ee soo socota.
1, saddex chrome steel: kaarboon (
C)
Lagu xisaabtamay 0.
28 -
0.
35%, oo ka kooban chromium (
Cr)
12.
8 -
13.
5% maaddooyinka.
Ka dib daaweynta deminta saliidda, adkaanta waxay noqon kartaa ilaa 54 -
56 HRC.
Tilmaamaha alaabta taxanaha ah ee birta: fiiqan, Yi Fu shiidid, ma fududa in miridhku
2, 4 bir chrome, kaarboon,
C)
Lagu xisaabtamay 0.
35 -
0.
45%, oo ka kooban chromium (
Cr)
12.
8 -
13.
5%, molybdenum
Mo)
0.
5% vanadium (
(五)
0.
3 -
0.
5% maaddooyinka.
Qalabaynta ka dib balaadhinta kulaylka, engegnaanta waxay noqon kartaa ilaa 56 -
58HRC.
Taxanaha alaabada birta ah waxay ka kooban tahay: fiiqan badan, miridhku iyo adayg, ma fududa in la jebiyo qallafsanaan, ka sii fiican, Yi Fu shiidi hadhuudh.
3, 5 bir chrome, kaarboon,
C)
0.
68 -
0.
75%, oo ka kooban chromium (
Cr)
16.
7 -
17.
5%, molybdenum
Mo)
0.
5% maaddooyinka sida;
Ka dib daaweynta deminta saliidda, 58 - adkaanta waa la gaari karaa
60HRC.
Waxyaabaha taxanaha ah ee birta ah ayaa ka kooban: aad u adag oo fiiqan, adkaysi leh, miridhku iyo adkaansho sare.
