440 / 440C kubadaha birta ahama
|
Halbeegga |
Faahfaahinta alaabta |
|
Magaca Product: |
440 kubad bir bir ah / 440 |
|
Waxyaabaha: |
440 / 440C |
|
Cabirka: |
0.3mm-80mm |
|
Engegnaantiinna: |
HRC58-62 |
|
Heerka Wax Soosaarka: |
ISO3290 2001 GB / T308.1-2013 DIN5401-2002 |
|
Halabuurka kiimikada ee 440C kubbadaha birta ah ee birta ah |
|
|
C |
0.95-1.20% |
|
Cr |
16.0-18.0% |
|
Si |
1.00% Max |
|
Mn |
1,0% Max. |
|
P |
0.040% Max |
|
S |
0.030% Max |
|
Mo |
0.40-0.80% |
|
Ni |
0.60% Max |
440—Aaladda birta adag ee birta oo waxoogaa ka sarreeya kaarboon ka kooban. Ka dib daaweynta kuleylka saxda ah, xoogga dhalidda sare ayaa la heli karaa. Adaggu wuxuu gaari karaa 58HRC, taas oo ka mid ah birta birta ah ee ugu adag. Tusaalaha arjiga ugu badan waa "mandiil". Waxaa jira seddex nooc oo si caadi ah loo isticmaalo: 440A, 440B, 440C, iyo 440F (fududnooca processing).
Mabda'a kubbadda birta ah ee birta ah:
Kubadaha biraha ahama ma yihiin miridh-caddeyn, laakiin ma sahlana in miridhku dhaco. Mabda'a ayaa ah marka lagu daro chromium, lakab cufan oo chromium oxide ah ayaa laga sameeyay dusha sare ee biraha, kaas oo si wax ku ool ah u xannibi kara dib-u-xiriirka u dhexeeya birta iyo hawada, si oksijiinka hawadu uusan u geli karin birta kubada, taas oo ka hortageysa Saameynta kubadaha birta ee daxala.
Heerarka Qaranka Shiinaha (CNS), Jaangooyada Warshadaha ee Japan (jis) iyo Machadka Birta iyo Birta ee Mareykanka (AISI) waxay adeegsadaan seddex lambar si ay u muujiyaan xarkaha kaladuwan ee kala geddisan, kuwaas oo si ballaaran looga soo xigtay warshadaha, kuwaas oo 200 oo taxane ay yihiin chromium-nickel-manganese oo ku saleysan birta ahama austenitic, 300 taxane waa bir birta austenitic aromo chromium-nickel, 400 silsilad bir ah oo silsilad chromium ah (oo badanaa loo yaqaan birta aan lahayn), oo ay ku jiraan martensite iyo ferrite.
