Kodi pali kusiyana kotani pakati pa zitsulo za 17-4PH ndi zitsulo zina zowumitsa mvula (PH)?

Kodi pali kusiyana kotani pakati pa zitsulo za 17-4PH ndi zitsulo zina zowumitsa mvula (PH)?

Chiyambi

Zitsulo zosapanga dzimbiri zouma ndi kuuma kwa mvula (PH steels) ndi gulu la zitsulo zosagwira dzimbiri zomwe zimaphatikiza mphamvu ya zitsulo za martensitic ndi austenitic komanso kukana dzimbiri kwabwino. Pakati pawo,Chitsulo chosapanga dzimbiri cha 17-4PHMwina ndi yomwe imagwiritsidwa ntchito kwambiri chifukwa cha luso lake lapadera la makina komanso kuphweka kwa kupanga. Koma kodi ikufanana bwanji ndi ma PH grade ena monga 15-5PH, 13-8Mo, 17-7PH, ndi Custom 465? Nkhaniyi ikufotokoza mozama kusiyana kwa kapangidwe kake, kutentha, mphamvu za makina, kukana dzimbiri, ndi kugwiritsa ntchito.

Chidule cha Zitsulo Zosapanga Dzimbiri Zouma ndi Kuuma

Zitsulo zolimbitsa mphamvu ya mvula zimapeza mphamvu zake kuchokera ku mapangidwe a ma precipitates abwino mu matrix yachitsulo panthawi yochizira kutentha. Zitsulozi zimagawidwa m'magulu atatu akuluakulu:

1. Zitsulo za Martensitic PH(monga,17-4PH, 15-5PH)
2. Zitsulo za PH zotchedwa semi-austenitic(mwachitsanzo, 17-7PH)
3. Zitsulo za Austenitic PH(monga, A286)

Gulu lililonse limapereka kuphatikiza kwapadera kwa malo ogwirizana ndi zosowa za mafakitale.

17-4PH (UNS S17400): Muyezo wa Makampani

Kapangidwe kake:

• Cr: 15.0–17.5%
• Ni: 3.0–5.0%
• Cu: 3.0–5.0%
• Nb (Cb): 0.15–0.45%

Kutentha Chithandizo: Yokonzedwa ndi kukalamba (nthawi zambiri H900 mpaka H1150-M)

Katundu wa Makina (H900):

• Mphamvu Yokoka: 1310 MPa
• Mphamvu Yotulutsa: 1170 MPa
• Kutalika: 10%
• Kulimba: ~44 HRC

Ubwino:

• Mphamvu yayikulu
• Kukana dzimbiri pang'ono
• Kugwira ntchito bwino kwa makina
• Zosunthika

Mapulogalamu:

• Zigawo zamlengalenga
• Ma reactor a nyukiliya
• Ma valve, shafts, zomangira

Kuyerekeza ndi Zitsulo Zina Zosapanga Dzimbiri za PH

15-5PH (UNS S15500)

Kapangidwe kake:

• Mofanana ndi 17-4PH, koma ndi mphamvu yowongolera zinthu zodetsa
• Cr: 14.0–15.5%
• Ni: 3.5–5.5%
• Cu: 2.5–4.5%

Kusiyana Kwakukulu:

• Kulimba bwino kopingasa chifukwa cha kapangidwe kake kakang'ono
• Makhalidwe abwino a makina m'magawo okhuthala

Makesi Ogwiritsira Ntchito:

• Zopangira ndege
• Zipangizo zopangira mankhwala

13-8Mo (UNS S13800)

Kapangidwe kake:

• Cr: 12.25–13.25%
• Ni: 7.5–8.5%
• Mwezi: 2.0–2.5%

Kusiyana Kwakukulu:

• Kulimba kwapamwamba komanso kukana dzimbiri
• Mphamvu yayikulu pamizere yokhuthala
• Zowongolera zolimba zogwiritsira ntchito ndege

Makesi Ogwiritsira Ntchito:

• Zigawo zamlengalenga
• Masipu amagetsi ogwira ntchito bwino

17-7PH (UNS S17700)

Kapangidwe kake:

• Cr: 16.0–18.0%
• Ni: 6.5–7.75%
• Al: 0.75–1.50%

Kusiyana Kwakukulu:

• Semi-austenitic; imafuna ntchito yozizira komanso chithandizo cha kutentha
• Kupangika bwino koma kukana dzimbiri pang'ono kuposa 17-4PH

Makesi Ogwiritsira Ntchito:

• Ma diaphragm amlengalenga
• Bellows
• Masika

Mwambo 465 (UNS S46500)

Kapangidwe kake:

• Cr: 11.0–13.0%
• Ni: 10.75–11.25%
• Mtengo: 1.5–2.0%
• Mwezi: 0.75–1.25%

Kusiyana Kwakukulu:

• Mphamvu yapamwamba kwambiri (mpaka 200 ksi tensile)
• Kulimba kwabwino kwambiri kwa kusweka
• Mtengo wokwera

Makesi Ogwiritsira Ntchito:

• Zida zopangira opaleshoni
• Zomangira ndege
• Zida zoyendera pansi

Kuyerekeza kwa Chithandizo cha Kutentha

Kuyerekeza kwa Kukana Kudzimbiri

• Zabwino Kwambiri:13-8Mo ndi Custom 465
• Zabwino:17-4PH ndi 15-5PH
• Chilungamo:17-7PH

Zindikirani: Palibe chomwe chikufanana ndi kukana dzimbiri kwa mitundu yonse ya austenitic monga 316L.

Kutha Kugwira Ntchito ndi Kutha Kugwira Ntchito

Kuganizira za Mtengo

• Yotsika mtengo kwambiri:17-4PH
• Magiredi Oyamba:13-8Mo ndi Custom 465
• Yoyenera:15-5PH

Kuyerekeza kwa Mapulogalamu

Chidule

Mapeto

Ngakhale 17-4PH ikadali chitsulo chosapanga dzimbiri cha PH chomwe chimagwiritsidwa ntchito kwambiri pazinthu zambiri, mtundu uliwonse wa PH uli ndi zabwino zake zomwe zimapangitsa kuti chikhale choyenera bwino pazofunikira zinazake. Kumvetsetsa kusiyana pakati pa zinthuzi kumathandiza mainjiniya ndi ogula kupanga zisankho zodziwikiratu kutengera mphamvu, kulimba, kukana dzimbiri, ndi mtengo.