Kodi Pali Kusiyana Kotani Pakati pa 17-4PH ndi Zitsulo Zina Zowumitsa Mvula (PH)?

Kodi Pali Kusiyana Kotani Pakati pa 17-4PH ndi Zitsulo Zina Zowumitsa Mvula (PH)?

Mawu Oyamba

Zitsulo zosapanga dzimbiri zowumitsa mpweya (PH zitsulo) ndi gulu la aloyi osagwirizana ndi dzimbiri omwe amaphatikiza kulimba kwa zitsulo za martensitic ndi austenitic zokhala ndi dzimbiri. Mwa iwo,17-4PH chitsulo chosapanga dzimbirimosakayikira ndiyomwe imagwiritsidwa ntchito kwambiri chifukwa cha mawonekedwe ake apadera amakina komanso mosavuta kupanga. Koma zimafananiza bwanji ndi ma PH ena monga 15-5PH, 13-8Mo, 17-7PH, ndi Custom 465? Nkhaniyi imalowa mkati mwakuya pakusiyana kwa kapangidwe kake, chithandizo cha kutentha, mawonekedwe amakina, kukana dzimbiri, komanso kagwiritsidwe ntchito kake.

Mwachidule za Mpweya-Kuumitsa Zitsulo Zosapanga dzimbiri

Zitsulo zowumitsa mpweya zimapeza mphamvu chifukwa chopanga mpweya wabwino muzitsulo zachitsulo panthawi yamankhwala okalamba. Zitsulo izi zimagawidwa m'magulu atatu:

1. Martensitic PH zitsulo(mwachitsanzo,17-4 PH, 15-5 PH)
2. Semi-austenitic PH zitsulo(mwachitsanzo, 17-7PH)
3. Austenitic PH zitsulo(mwachitsanzo, A286)

Gulu lirilonse limapereka kuphatikiza kwapadera kwa katundu wogwirizana ndi zosowa zamakampani.

17-4PH (UNS S17400): Mulingo Wamakampani

Kupanga:

• Kukula: 15.0-17.5%
• Kuchuluka: 3.0-5.0%
• Kuchuluka: 3.0-5.0%
• Nb (Cb): 0.15–0.45%

Kutentha Chithandizo: Yothandizidwa ndi okalamba (nthawi zambiri H900 mpaka H1150-M)

Mechanical Properties (H900):

• Kuthamanga Kwambiri: 1310 MPa
• Zokolola Mphamvu: 1170 MPa
• Kutalika: 10%
• Kulimba: ~ 44 HRC

Ubwino wake:

• Mphamvu zapamwamba
• Kukana dzimbiri kwapakatikati
• Kuchita bwino
• Zowotcherera

Mapulogalamu:

• Zamlengalenga
• Zida zanyukiliya
• Ma valve, shafts, fasteners

Poyerekeza ndi Zitsulo Zina za PH

15-5PH (UNS S15500)

Kupanga:

• Zofanana ndi 17-4PH, koma zowongolera zolimba pazinyalala
• Kukula: 14.0-15.5%
• Kuchuluka: 3.5-5.5%
• Kuchuluka: 2.5-4.5%

Kusiyana Kwakukulu:

• Kulimba kopingasa bwinoko chifukwa cha mawonekedwe owoneka bwino
• Kupititsa patsogolo zamakina m'magawo okhuthala

Gwiritsani Ntchito Milandu:

• Zojambula za Aerospace
• Zida zopangira mankhwala

13-8Mo (UNS S13800)

Kupanga:

• Kukula: 12.25-13.25%
• Kuchuluka: 7.5-8.5%
• Mo: 2.0–2.5%

Kusiyana Kwakukulu:

• Kulimba kwapamwamba komanso kukana dzimbiri
• Mphamvu zazikulu pamagawo otalikirapo
• Zowongolera zolimba kuti zigwiritsidwe ntchito mumlengalenga

Gwiritsani Ntchito Milandu:

• Zigawo zazamlengalenga zakuthambo
• Akasupe apamwamba kwambiri

17-7PH (UNS S17700)

Kupanga:

• Kukula: 16.0-18.0%
• Kuchuluka: 6.5-7.75%
• Chiwerengero: 0.75-1.50%

Kusiyana Kwakukulu:

• Semi-autenitic; amafuna ntchito ozizira ndi kutentha mankhwala
• Kuwoneka bwino koma kutsika kwa dzimbiri kuposa 17-4PH

Gwiritsani Ntchito Milandu:

• Ma diaphragm amlengalenga
• Mavuvu
• Akasupe

Custom 465 (UNS S46500)

Kupanga:

• Kukula: 11.0-13.0%
• Kuchuluka: 10.75-11.25%
• Chiyerekezo: 1.5–2.0%
• Mo: 0.75–1.25%

Kusiyana Kwakukulu:

• Mphamvu zapamwamba kwambiri (mpaka 200 ksi tensile)
• Kulimba kwabwino kwa fracture
• Mtengo wapamwamba

Gwiritsani Ntchito Milandu:

• Zida zopangira opaleshoni
• Zomangira ndege
• Zida zoyatsira zida

Kuyerekeza Chithandizo cha Kutentha

Kuyerekeza kwa Corrosion Resistance

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

Zindikirani: Palibe chofanana ndi kukana kwa dzimbiri kwa magiredi austenitic mokwanira ngati 316L.

Machinability ndi Weldability

Kuganizira Mtengo

• Zotsika mtengo:17-4 PH
• Maphunziro a Premium:13-8Mo ndi Custom 465
• Zoyenera:15-5 PH

Kuyerekeza kwa Mapulogalamu

Chidule

Mapeto

Ngakhale 17-4PH imakhalabe chitsulo chosapanga dzimbiri cha PH pazantchito zambiri, giredi iliyonse ya PH ili ndi zabwino zake zomwe zimapangitsa kuti ikhale yoyenera pazofunikira zinazake. Kumvetsetsa ma nuances pakati pa ma alloys awa kumathandizira akatswiri opanga zinthu ndi ogula kupanga zisankho zodziwikiratu kutengera mphamvu, kulimba, kukana dzimbiri, komanso mtengo wake.