440 / 440C awọn boolu irin alagbara
|
Iwọn |
Awọn alaye ọja |
|
Orukọ ọja: |
Bọọlu irin alagbara, 440/440 |
|
Ohun elo: |
440 / 440C |
|
Iwọn: |
0.3mm-80mm |
|
Líle: |
HRC58-62 |
|
Standard Production: |
ISO3290 2001 GB / T308.1-2013 DIN5401-2002 |
|
Akopọ kemikali ti 440C irin alagbara, irin boolu |
|
|
C |
0.95-1.20% |
|
Kr |
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—Irin gige irinṣẹ ti o ni agbara pẹlu akoonu carbon diẹ ti o ga julọ. Lẹhin itọju ooru to dara, agbara ikore ti o ga julọ le ṣee gba. Ikun lile le de ọdọ 58HRC, eyiti o wa laarin awọn irin alagbara ti ko nira julọ. Apẹẹrẹ ohun elo ti o wọpọ julọ ni “awọn abẹfẹlẹ abẹ”. Awọn awoṣe mẹta ti a nlo nigbagbogbo: 440A, 440B, 440C, ati 440F (rọruniru processing).
Ilana ti rogodo irin alagbara:
Awọn boolu alagbara, irin kii ṣe ẹri ipata, ṣugbọn kii ṣe rọrun lati ipata. Ilana naa ni pe nipasẹ afikun ti chromium, a ṣe fẹlẹfẹlẹ ohun elo afẹfẹ kromium ti o ni oju lori irin, eyiti o le ni idiwọ idiwọ isopọ laarin irin ati afẹfẹ, ki atẹgun atẹgun ninu afẹfẹ ko le wọ irin rogodo, nitorina idilọwọ Ipa ti awọn boolu ti irin rusting.
Awọn Ilana ti Ilu China (CNS), Awọn Ilana Iṣẹ Ilu Japanese (jis) ati American Iron and Steel Institute (AISI) lo awọn nọmba mẹta lati tọka awọn irin ti o jẹ irin alagbara, eyiti a sọ ni agbasọ ni ile-iṣẹ, eyiti eyiti 200 jara jẹ chromium-nickel-manganese -based austenitic Irin alagbara, irin 300 jẹ irin alagbara irin irin-chromium-nickel, irin alagbara irin chromium 400 jara (eyiti a mọ ni irin alailowaya), pẹlu martensite ati ferrite.
