ASTM A335 P91, bizwi kandiASME SA335 P91, ni umuyoboro udasanzwe wa ferritic alloy ibyuma bya serivisi yubushyuhe bwo hejuru, UNS No K91560.
Ifite byibuzeimbaraga zingana za 585 MPa(85 ksi) na byibuzegutanga umusaruro wa 415 MPa(60 ksi).
P91ahanini irimo ibintu bivangavanze nka chromium na molybdenum, nibindi bintu bitandukanye bivanga byongeweho, byerekeranye naibyuma-binini cyane, ifite imbaraga zidasanzwe kandi zirwanya ruswa.
Mubyongeyeho, P91 iraboneka muburyo bubiri,Andika 1naUbwoko bwa 2, kandi isanzwe ikoreshwa mumashanyarazi, inganda, ibikoresho bya chimique ibikoresho bikomeye, no kuvoma mubushyuhe bwinshi nubushyuhe bukabije.
Umuyoboro wa P91 ushyizwe mubwoko bubiri, Ubwoko 1 na Ubwoko 2.
Ubwoko bwombi burasa mubijyanye nubukanishi nibindi bisabwa nko kuvura ubushyuhe,hamwe nibitandukaniro bito mubigize imiti nibisobanuro byihariye byibandwaho.
Ibigize imiti: Ugereranije nubwoko bwa 1, imiti yimiterere yubwoko bwa 2 irakomeye kandi irimo ibintu byinshi bivanga kugirango bitange ubushyuhe bwiza no kurwanya ruswa.
Porogaramu: Bitewe nuburyo bwiza bwa chimique, Ubwoko bwa 2 burakwiriye kubushyuhe bwo hejuru cyane cyangwa ibidukikije byangirika cyane, cyangwa mubisabwa aho imbaraga nyinshi nigihe kirekire bisabwa.
ASTM A335 umuyoboro wibyuma ugomba kubanta nkomyi.
Ibikorwa byo gukora bidafite kashe byashyizwe mubicekurangizanaubukonje.
Hasi nigishushanyo cyibikorwa bishyushye birangiye.
By'umwihariko, P91, umuyoboro wibyuma mwinshi cyane, ukoreshwa kenshi mubidukikije bikaze bitewe nubushyuhe bwinshi n’umuvuduko mwinshi, umuyoboro wibyuma udafite kashe ushimangirwa kimwe kandi ushobora gukorwa mubikuta byimbitse, bityo bikarinda umutekano muke kandi bikanakoreshwa neza. .
P91 Imiyoboro yose igomba gukoreshwa nubushyuhe kugirango hongerwe microstructure yumuyoboro, itezimbere imiterere yubukanishi, kandi yongere imbaraga zo guhangana nubushyuhe bwinshi nigitutu.
P91 Ubwoko bwa 1 Ibigize imiti
P91 Ubwoko bwa 2 Ibigize imiti
Hamwe namashusho abiri yavuzwe haruguru, biroroshye kubona itandukaniro riri hagati yubwoko bwa 1 nubwoko bwa 2 bwimiti nibibuza.
1. Umutungo utoroshye
Ikizamini cya tensile gikunze gukoreshwa mugupimagutanga imbaraga, imbaraga, naelongation ya progaramu yubushakashatsi bwicyuma, kandi ikoreshwa cyane mubintu bifatika byikizamini.
AImbonerahamwe 5 itanga agaciro ntarengwa kabaruwe.
Aho uburebure bwurukuta buri hagati yagaciro kombi hejuru, agaciro ntarengwa kuramba kugenwa na formula ikurikira:
Longitudinal, P91: E = 32t + 15.00 [E = 1.25t + 15.00]
aho:
E = kurambura muri 2 muri. Cyangwa 50 mm,%,
t = ubunini nyabwo bwikigereranyo, muri. [mm].
2. Gukomera
Uburyo butandukanye bwo gupima ubukana burashobora gukoreshwa, harimo Vickers, Brinell, na Rockwell.
Ubunini bw'urukuta <0.065 muri. [1,7 mm]: Nta kizamini gikomeye gisabwa;
0.065 muri. [1,7 mm] ≤ uburebure bwurukuta <0,200 muri.
Ubunini bwurukuta ≥ 0.200 muri.
Ikizamini gikomeye cya Vickers kirakoreshwa muburebure bwurukuta rwa tubing.Uburyo bwikizamini bukorwa hakurikijwe ibisabwa E92.
3. Ikizamini cyo Kuringaniza
Ubushakashatsi buzakorwa hakurikijwe igice cya 20 cyurwego rwa ASTM A999.
4. Ikizamini
Hindura 180 ° ku bushyuhe bwicyumba, ntagishobora kugaragara hanze yikigice cyunamye.
Ingano> NPS25 cyangwa D / t ≥ 7.0: Ikizamini cyo kunama kigomba gukorwa nta kizamini kibeshya.
5. P91 Gahunda Zigerageza
Ibintu byubushakashatsi bikurikira ntibisabwa ibintu byikizamini, nibiba ngombwa birashobora kugenwa numushyikirano.
S1: Isesengura ry'ibicuruzwa
S3: Ikizamini cyo Kuringaniza
S4: Imiterere y'ibyuma n'ibizamini bya Etching
S5: Amafoto
S6: Photomicrographs kubice bya buri muntu
S7: Ubundi buryo bwo kuvura ubushyuhe-Urwego P91 Ubwoko bwa 1 nubwoko 2
Ikizamini cya hydro P91 kigomba kubahiriza ibisabwa bikurikira.
Hanze ya diameter ＞ 10in.[250mm] n'ubugari bw'urukuta ≤ 0,75in.[19mm]: iki kigomba kuba ikizamini cya hydrostatike.
Ubundi bunini bwo gupima amashanyarazi adasenya.
Kubyuma bya ferritic alloy ibyuma hamwe nicyuma kitagira umuyonga, urukuta rushyirwaho igitutu kitari munsi60% byimbaraga ntoya yatanzwe.
Umuvuduko wikizamini cya hydro ugomba kubungabungwa byibuze 5snta kumeneka cyangwa izindi nenge.
Umuvuduko w'amaziirashobora kubarwa ukoresheje formula:
P = 2St / D.
P = umuvuduko wikizamini cya hydrostatike muri psi [MPa];
S = imiyoboro y'urukuta muri psi cyangwa [MPa];
t = uburebure bwurukuta rwerekanwe, uburebure bwurukuta rwizina ukurikije umubare wateganijwe wa ANSI cyangwa inshuro 1.143 zuburebure bwurukuta ntarengwa, muri. [mm];
D = yerekanwe hanze ya diameter, diameter yo hanze ihuye nubunini bwa ANSI bwagenwe, cyangwa diameter yo hanze ibarwa wongeyeho 2t (nkuko byasobanuwe haruguru) kuri diameter imbere, muri.
Umuyoboro wa P91 ugenzurwa hakoreshejwe uburyo bwa E213.Ibipimo bya E213 bireba cyane cyane ibizamini bya ultrasonic (UT).
Niba bisobanuwe neza murutonde, birashobora kandi kugenzurwa ukurikije uburyo bwa E309 cyangwa E570.
Ubusanzwe E309 isanzwe ikorana na electromagnetic (eddy iriho), mugihe E570 nuburyo bwo kugenzura burimo ibice bya eddy.
Impinduka zemewe muri Diameter
Umuyoboro wateganijwe kuriimbere ya diameter, diameter y'imbere ntishobora gutandukana kurenza ± 1% uhereye kumurambararo wimbere.
Igituba cyateganijwe muriNPS [DN] cyangwa ibipimo byo hanzentigomba gutandukana hanze ya diametero kurenza uko bigaragara mumbonerahamwe ikurikira.
Impinduka zemewe muburyo bwurukuta
Ibipimo by'ubugari bw'urukuta bigomba gukorwa hifashishijwe imashini zikoresha imashini zikoresha imashini zipima neza.Iyo habaye impaka, ibipimo byagenwe hakoreshejwe imashini zikoresha imashini bizatsinda.
Uburebure bwurukuta ntarengwa na diameter yo hanze kugirango bigenzurwe kugirango hubahirizwe iki gisabwa kumuyoboro wateganijwe na NPS [DN] numero yingengabihe irerekanwa muriASME B36.10M.
Inenge
Ubusembwa bwubuso bufatwa nkinenge iyo burenze 12.5% yubugari bwizina cyangwa burenze uburebure bwurukuta.
Ubusembwa
Ibimenyetso bya mashini, gukuramo, no mu byobo, kimwe muricyo cyose ubusembwa bwimbitse burenze 1/16 muri. [1,6 mm].
Ibimenyetso no gukuramo bisobanurwa nkibimenyetso bya kabili, dinges, ibimenyetso byayobora, ibimenyetso byizunguruka, gushushanya umupira, amanota, ibimenyetso bipfa, nibindi nkibyo.
Gusana
Inenge irashobora gukurwaho no gusya, mugihe uburebure bwurukuta busigaye butari munsi yuburebure bwurukuta.
Gusana birashobora kandi gukorwa no gusudira ariko bigomba kubahiriza ibisabwa bijyanye na A999.
Ibikoresho byose byo gusana muri P91 bigomba gukorwa hamwe nuburyo bukurikira bwo gusudira nibikoreshwa: SMAW, A5.5 / A5.5M E90XX-B9: SAW, A5.23 / A5.23M EB9 + flux flux;GTAW, A5.28 / A5.28M ER90S-B9;na FCAW A5.29 / A5.29M E91TI-B9.Mubyongeyeho, igiteranyo cya Ni + Mn yibikoresho byose byo gusudira bikoreshwa mugusudira P91 Ubwoko bwa 1 nubwoko bwa 2 ntibishobora kurenga 1.0%.
Umuyoboro wa P91 ugomba gutunganywa ubushyuhe kuri 1350-1470 ° F [730-800 ° C] nyuma yo gusanwa.
Ubuso bwo hanze bwicyuma cyagenzuwe bugomba kuba bukubiyemo ibintu bikurikira:
Izina ry'umukoresha cyangwa ikirango;umubare usanzwe;amanota;uburebure n'ikimenyetso cy'inyongera "S".
Ibimenyetso byumuvuduko wa hydrostatike hamwe nigeragezwa ridasenya mumeza hepfo nabyo bigomba kubamo.
Niba umuyoboro usanwe no gusudira, bizashyirwaho ikimenyetso "WR".
p91 Ubwoko (Ubwoko 1 cyangwa Ubwoko 2) bugomba kwerekanwa.
EN 10216-2: X10CrMoVNb9-1 cyangwa 1.4903;
JIS G 3462: STPA 28;
GB / T 5310: 10Cr9Mo1VNb;
Ibyo bihwanye byegeranye cyane mubigize imiti hamwe nubukanishi kuri ASTM A335 P91.
Material: ASTM A335 P91 umuyoboro w'icyuma udafite kashe;
OD: 1/8 "- 24";
WT: ukurikijeASME B36.10ibisabwa;
Gahunda: SCH10, SCH20, SCH30,SCH40, SCH60,SCH80, SCH100, SCH120, SCH140 na SCH160;
Kumenyekanisha:STD (isanzwe), XS (birenze-bikomeye), cyangwa XXS (inshuro ebyiri-zikomeye);
Guhitamo: Ingano itari imiyoboro isanzwe nayo irahari, ingano yihariye irahari bisabwe;
Uburebure: Uburebure bwihariye kandi butunguranye;
Icyemezo cya IBR: Turashobora kuvugana nundi muntu wagenzuye kugirango tubone ibyemezo bya IBR ukurikije ibyo ukeneye, amashyirahamwe yacu agenzura ubufatanye ni BV, SGS, TUV, nibindi.;
Iherezo: Impera ihanamye, yatemaguwe, cyangwa ihuriro ryumuyoboro;
Ubuso: Umuyoboro woroheje, irangi, nubundi burinzi bwigihe gito, kuvanaho ingese no gusya, gusya hamwe na plastike, hamwe nubundi buryo bwo kurinda igihe kirekire;
Gupakira: Ikibaho cyimbaho, umukandara wibyuma cyangwa gupakira insinga zicyuma, plastike cyangwa ibyuma birangiza kurinda, nibindi
