Duplex Umuyoboro w'icyuma

Ibisobanuro bigufi:

Icyiciro: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405n'ibindi

Bisanzwe: AISI, ASTM, DIN, EN, GB, ISO, JIS

Uburebure: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, cyangwa nkibisabwa abakiriya

Ubugari: 20mm - 2000mm, cyangwa nkibisabwa abakiriya

Umubyimba: 0.1mm -200mm

Ubuso: 2B 2D BA (Bikeye neza) No1 No3 No4 No5 No8 8K HL (Umurongo wimisatsi)

Igihe cyibiciro: CIF CFR FOB EXW

Igihe cyo gutanga: Mu minsi 10-15 nyuma yo kwemeza itegeko

Igihe cyo kwishyura: 30% TT nkubitsa hamwe nubusigaye kuri kopi ya B / L.cyangwa LC

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Ibicuruzwa birambuye

Ibicuruzwa

Incamake ya Duplex Ibyuma

Ibyuma bya super duplex bitagira ibyuma bitandukanijwe nu byiciro bisanzwe bya duplex hamwe niterambere ryayo ryangirika cyane. Nibikoresho bivanze cyane hamwe nubunini bwibintu birwanya ruswa nka chromium (Cr) na molybdenum (Mo). Icyiciro cyambere super duplex idafite ibyuma, S32750, igizwe na chromium 28.0%, molybdenum 3.5%, na nikel 8.0% (Ni). Ibi bice bitanga imbaraga zidasanzwe kubintu byangiza, harimo acide, chloride, nibisubizo bya caustic.

Mubisanzwe, super duplex ibyuma bidafite ibyuma byubaka ku nyungu zagenwe zamanota ya duplex hamwe n’imiti ihamye. Ibi bituma iba icyiciro cyiza cyo guhimba ibice byingenzi murwego rwa peteroli, nko guhinduranya ubushyuhe, amashyiga, nibikoresho byubwato.

Ibikoresho bya tekinike ya Duplex Ibyuma bitagira umuyonga

Impamyabumenyi	ASTM A789 Icyiciro S32520 Gishyuha	ASTM A790 Icyiciro S31803 Gishyushye	ASTM A790 Icyiciro S32304 Gishyuha	ASTM A815 Icyiciro S32550 Gishyuha	ASTM A815 Icyiciro S32205 Gishyushye
Modulus	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Kurambura	25%	25%	25%	15%	20%
Imbaraga	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Gukomera kwa Brinell	310	290	290	302	290
Gutanga Imbaraga	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Coefficient yo kwagura ubushyuhe	1E-5 1 / K.	1E-5 1 / K.	1E-5 1 / K.	1E-5 1 / K.	1E-5 1 / K.
Ubushobozi bwihariye bwo gushyushya	440 - 502 J / (kg · K)	440 - 502 J / (kg · K)	440 - 502 J / (kg · K)	440 - 502 J / (kg · K)	440 - 502 J / (kg · K)
Amashanyarazi	13 - 30 W / (m · K)	13 - 30 W / (m · K)	13 - 30 W / (m · K)	13 - 30 W / (m · K)	13 - 30 W / (m · K)

Gutondekanya ibyuma bya Duplex

l Ubwoko bwa mbere nubwoko buke buvanze, hamwe nicyiciro gihagarariye UNS S32304 (23Cr-4Ni-0.1N). Ibyuma ntabwo birimo molybdenum, kandi agaciro ka PREN ni 24-25. Irashobora gukoreshwa aho kuba AISI304 cyangwa 316 mukurwanya ruswa.

l Ubwoko bwa kabiri nubwoko buciriritse buvanze, ikirango gihagarariye ni UNS S31803 (22Cr-5Ni-3Mo-0.15N), agaciro ka PREN ni 32-33, kandi kurwanya ruswa kwayo hagati ya AISI 316L na 6% Mo + N austenitike ibyuma.

Ubwoko bwa gatatu nubwoko buvanze cyane, burimo 25% Cr, molybdenum na azote, kandi bimwe birimo umuringa na tungsten. Urwego rusanzwe UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), PREN agaciro ni 38-39, kandi kurwanya ruswa yo muri ubu bwoko bwibyuma birarenze ibya 22% Cr duplex idafite ibyuma.

Ubwoko bwa kane ni super duplex idafite ibyuma, irimo molybdenum na azote. Urwego rusanzwe ni UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), kandi zimwe zirimo tungsten n'umuringa. Agaciro PREN karenze 40, gashobora gukoreshwa mubihe bikaze. Ifite ruswa irwanya ruswa hamwe nubukanishi bwuzuye, bushobora kugereranywa nicyuma cya super austenitis.

Inyungu za Duplex Ibyuma

Nkuko byavuzwe haruguru, Duplex isanzwe ikora neza kuruta ubwoko bwibyuma biboneka muri microstructure. Byiza byavuzwe, guhuza ibintu byiza biva mubintu bya austenite na ferrite bitanga igisubizo cyiza muri rusange kumubare munini wibikorwa bitandukanye.

Imiti irwanya ruswa - Ingaruka ya molybdenum, chromium, na azote ku kurwanya ruswa ya Duplex alloys ni nini. Amavuta menshi ya Duplex arashobora guhuza no kurenza imikorere yo kurwanya ruswa yibyamamare byamamare ya austenitike harimo 304 na 316. Birashobora cyane cyane kurwanya ibinure no kubora.

l Stress ruswa yameneka - SSC ije iturutse kubintu byinshi byo mu kirere - ubushyuhe nubushuhe nibyo bigaragara cyane. Guhangayikishwa cyane byongera ikibazo. Impamyabumenyi isanzwe ya austenitis irashobora kwibasirwa cyane no guturika kwangirika - Duplex ibyuma bidafite ingese ntabwo.

l Gukomera - Duplex irakomeye kuruta ibyuma bya ferritic - ndetse no mubushyuhe bwo hasi mugihe bidahuye mubyukuri nibikorwa byamanota ya austenitike muriki gice.

l Imbaraga - Duplex alloys irashobora gukomera inshuro 2 kurenza imiterere ya austenitis na ferritic. Imbaraga zisumbuye zisobanura ko ibyuma bikomeza gushikama nubwo byagabanutse cyane cyane cyane kugabanya ibiro.