25Cr2MoVA zafi birgima karfe takardar

① Lambobi biyu a farkon lambar karfe suna nuna abun ciki na carbon na karfe, wanda aka bayyana a cikin dubu goma na matsakaicin abun ciki na carbon, kamar 40Cr, 25Cr2MoVA gami tube.
② Babban abubuwan haɗakarwa a cikin ƙarfe, ban da abubuwan microalloying guda ɗaya, ana bayyana su gabaɗaya cikin ƴan kashi. Lokacin da matsakaicin abun ciki na gami ya gaza 1.5%, gabaɗaya alamar kashi kawai ana nuna shi a cikin lambar ƙarfe, kuma abun ciki ba a nuna shi ba. Duk da haka, a cikin yanayi na musamman, yana da sauƙi don haifar da rudani, kuma lambar "1" kuma ana iya yiwa alama alama bayan alamar kashi, kamar lambar karfe "12CrMoV" da "12Cr1MoV", tsohon yana da abun ciki na chromium na 0.4-0.6 %, na karshen yana da abun ciki na chromium na 0.9-1.2%, sauran kuma iri ɗaya ne. Lokacin da matsakaicin abun ciki na abubuwan alloying shine ≥1.5%, ≥2.5%, ≥3.5% ... , 18Cr2Ni4WA.
③ Alloying abubuwa kamar vanadium V, titanium Ti, aluminum AL, boron B, da rare earth RE a karfe duk microalloying abubuwa. Kodayake abun ciki yana da ƙasa sosai, ya kamata a yi musu alama a lambar ƙarfe. Misali, a cikin karfe 20MnVB. Vanadium shine 0.07-0.12%, kuma boron shine 0.001-0.005%.
④ Ƙarfe mai inganci mai daraja ya kamata ya ƙara "A" a ƙarshen lambar karfe don bambanta shi da ƙarfe mai inganci na gaba ɗaya.
⑤ Musamman maƙasudin tsarin ƙarfe na ƙarfe, lambar ƙarfe an riga an ƙaddamar da shi (ko suffix) tare da alamar da ke wakiltar manufar ƙarfe. Misali, 30CrMnSi karfe na musamman don riveting sukurori, an bayyana lambar karfe a matsayin ML30CrMnSi.
Alloy pipes da bututu marasa sumul duka suna da alaƙa kuma sun bambanta, kuma bai kamata a ruɗe ba.
Ana siffanta bututun ƙarfe ta bututun ƙarfe bisa ga kayan samarwa (wato, abu), kamar yadda sunan ke nunawa, bututu ne da aka yi da gami; yayin da aka siffanta bututu maras kyau ta hanyar bututun ƙarfe bisa ga tsarin samarwa (marasa ƙarfi da rashin ƙarfi), bambanci daga bututun mara ƙarfi shine bututun Seam, gami da madaidaiciyar bututun welded da bututu mai karkace.

	Haɗin Sinadari (%)
Karfe daraja	C	Si	Mn	V		Cr	Mo
25Cr2MoVA	0.22～0.29	0.17～0.37	0.40～0.70	0.15～0.30		1.50～1.8	0.25～0.35

Kayan aikin injiniya

Ƙarfin Haɓaka σs /MPa (>=)	Ƙarfin ƙarfi σb /MPa (>=)	Tsawaitawa δ5 /% (>>)	Ragewar yanki ψ/% (>=)
≧785	≧930	≧14	≧55

【Maganin zafi】
Quenching dumama zafin jiki (℃): 900; mai sanyaya: mai
Tempering dumama zafin jiki (℃): 640; mai sanyaya: komai

Za mu iya samar da 25Cr2MoVA yana da waɗannan ƙayyadaddun bayanai:

Karfe mai zagaye: 1mm zuwa 3000mm

Ƙarfe mai siffar murabba'i: 1mm zuwa 2000mm

Farantin karfe: 0.1mm zuwa 2500mm

Nisa: 10mm zuwa 2500mm

Lenth: Muna iya ba da kowane lamuni dangane da buƙatun abokin ciniki.

Ƙirƙira: Shafts tare da gefuna / bututun / tubes / slugs /donuts/cubes/ wasu siffofi

Tubings: OD: φ6-219 mm, tare da kaurin bango daga 1-35 mm.

Yanayin kayan da aka gama: zafafan ƙirƙira / zazzafan mirginawa + annealing / daidaitawa + zafin rai / quenching + fushi / kowane yanayi dangane da buƙatun abokin ciniki

Yanayin saman: ma'auni (ƙarshen aiki mai zafi)/ƙasa/machining mai kyau/mashin mai kyau/ bisa buƙatun abokin ciniki

Tushen don sarrafa ƙarfe: electrode arc + LF/VD/VOD/ESR/Vacuum mai amfani da lantarki.

Duban Ultrasonic: 100% duban ultrasonic don kowane rashin cikawa ko kuma dangane da buƙatun abokin ciniki.

Muna bauta muku da gaskiya, mutuncinmu, da ƙwarewarmu.