ASTM A335 P9 Icuma c'Umuyoboro

ASTM A335 Ibara. P9 ni umuyoboro w’icuma c’ivyuma bitagira umurongo wageneweigikorwa gikomeza ku bushuhe n'umuvuduko vyinshi. Na nk'9% vya koromu na 1% vya molibdeni, yicara mu muryango wa 9Cr-1Mo ukoreshwa cane mu gutanga amashanyarazi, mu gushushanya amavuta, mu guhindura ibintu, no mu mirongo y’ibikorwa bishushe.

KuriUmuyoboro w'umunani, amatiyo ya P9 atangwa mu 2019.ibisanzwe kandi bishavuye, vyageragejwe bimwe bishitse, kandi bishobora gukurikirana ubushuhe/umugwi, bibereye amaboteri, imitwe, ibikoresho bishusha cane, imirongo y’umwotsi n’imiyoboro y’ubushuhe bwinshi-aho ivyuma vy’umuyagankuba bisanzwe n’ivyuma vy’umuyagankuba bifise ubushuhe buke-Cr bidashobora kuguma bifise ubushobozi bwo guhangana n’uguhinduka kw’ibinyabuzima canke guhangana n’ugukwegakwega.

Mu buryo butandukanye n’icuma gisanzwe c’umuyagankuba, P9 yakozwe kugira ngo igumye ikomeye kandi iguma ifise ubutungane bw’imbere inyuma y’aho .amasaha ibihumbiku bushuhe bwinshi bw’ivyuma.

• Koromu (~9%)ihingura ikintu gikomeye, kifatanyeCr2O3 filimeku ruhande, bigabanya uburebure bw’ugukura n’uguhinduka kw’umuyagankuba mu kirere c’umuriro gishushe canke c’umuyagankuba uvanze-.
• Molibideni (~1%)ikomeza umubiri w’ivyuma (ferritic matrix) kandi igatevya guhinduka kw’ibihimba vy’umubiri mu kubuza ukwiruka kw’ibihimba vy’umubiri.
• Inyumagusanura + gushavura, icuma kirerekana a .imiterere ya ferrite–carbiden’imipaka y’intete ihamye n’ivyuma bigenzurwa (ahanini M23C6 / M6C) ku mipaka - ivyo ni vyo bigumya inkomezi z’ugukwegakwega-gucabuka kandi bikarinda gusenyuka kw’imipaka y’intete mu gihe kirekire.

Rero, mu bikorwa vy’ubushuhe bwinshi (ibikoresho vy’ubushuhe bwinshi, imirongo y’uguhindura), P9 iguma ihagaze mu rugero igihe kirekire kuruta ivyuma vy’ubwoko bwa P5/P11.

Igizwe n'imiti (urutonde rusanzwe)

Ivy'ubuhinga (ASTM A335 P9)

• Inkomezi zo gukomera:Ikuruta canke ingana na 415 MPa
• Inkomezi z'umwimbu:Irengeye canke ingana na 205 MPa
• Ugukura:Irengeye canke ingana na 30%
• Ubukomezi:Muto canke bingana na 163 HBW .

Ivyo bipimo ni ivy'uburyo busanzwe-na-ubushuhe kandi bigamije guha ivyuma bihagije ku bijanye n'uguhingura umuvuduko n'ubushuhe.

Kugira ngo umenye neza ko ubuhinga bwa 9Cr-1Mo buhinduka mu vy'ukuri ubushuhe buhambaye, Octal Pipe ikoresha inzira y'imiyoboro idafise umurongo:

• Igipfukisho n'ugutobora

Ivyuma vy’i Cr-Mo bisukuye birashushwa gushika ku bushuhe bukwiye bwo gutobora (hafi 1100–1150 degrees ), hanyuma bikatoborwa/bikaremba kugira ngo bibe imyobo ifise uruja n’uruza rw’intete rumwe.

• Gushushanya gushushe / gukonja

Igitutu c’uruhome kizana ku rutonde rwategekanijwe (SCH 10 – SCH 160). Gusanura hagati birashobora gukoreshwa iyo hariho ukugabanya cane canke ukwihanganira hafi.

• Gusanura (hafi. 900–950 degre )

Itunganya ferrite, ipfukura carbides zidahuye, ikuraho imibabaro yo mu mutima kugira ngo ntihagire.

• Gushushanya (hafi. 675–ingero 760 )

Igarura ductilité n’ugufunga mu gukwiragira kwa carbide kwipfuzwa kugira ngo imiterere y’uguca ibice kw’ibinyabuzima ihure n’ibisabwa na ASTM.

• Kugenzura uburyo

1. Ijwi ry'imbere / eddy{0}}ubu NDT ku mubiri w'imiyoboro n'iherezo
2. Igerageza ry'amazi
3. Ubukomezi n'ugutora ivyerekanwa vy'ubuhinga ku gice
4. RU 10204 3.1/3.2 icemezo co gukurikirana

Igisubizo ni umuyoboro ufise amabuye meza, akwiragiye neza n'ivyuma bikomeye - umubumbe ushaka ku bikorwa vy'igihe kirekire-bishushe.

Uburebure budasanzwe n’ukwihangana gukomeye cane birashobora kuganirwako ku migambi y’amaboteri/HRSG.

Iyo ubushuhe bw’icuma buzamutse bukagera kuri 100.000.Degre 600-700, P9 igumya ibintu bibiri amanota yo hasi atangura gutakaza:

• Ubutungane bwo ku ruhande– igice c’umubiri gifise Cr-rich oxide kigabanya ukukura kw’ibihimba vy’umubiri kandi kigatuma oxide igabanuka, rero uguhumana kw’imirongo n’ugusenyuka kw’uruhome bigenda buhoro.
• Gushikama– na Mo mu gisubizo n'ama carbides agenzurwa, iyo alloy ishobora gushika ku nkomezi zo guca ibice ku rutonde rukenewe ku 104 h y'igikorwa hafi 600 degrees .

Ni co gituma P9 igaragara cane ku:

• Amahinguriro y'amashanyarazi:superheater n'imiyoboro y'ugusubira gushusha, imitwe y'umwotsi, imirongo y'umwotsi ushushe
• Ivyuma bishushanya amavuta / amavuta ya peteroli:imiyoboro y'abavugurura, imirongo yo kwimurira, imiyoboro ya gazi ishushe-
• Ubushuhe bwinshi -ibiterwa:ibihindura ubushuhe, ibikoresho bitandukanye, imirongo y'ibifungurwa
• Amavuta na gazi y'ubushuhe:urushinge rw'umwotsi, imirongo yo gutunganya ivyuma vy'amazi -ikora mu bihe bishushe n'ingendo

Ugereranije na P5/P11, P9 itangagucungera neza oxidation n'ugukomera buhoro buhoro, ivyo bikaba akenshi bisobanura ko umuntu amara umwanya muremure wo gusuzuma.

• Uguhingura kuASME A335 / ASME SA-335n'ibisabwa bijanye na ISO/EN
• Gushikana muriBisanzwe kandi bishavuyeimiterere
• Ivy'ubuhinga, NDT, ivy'amaziRaporo z'igerageza kuri buri rwego
• 3.1 / 3.2 ivyemezobiboneka
• Gupakira bibereye kwoherezwa hanze no gutwara kure -
• Umugambi-urwego rwa QA/QC rwo gufasha abakozi b'amashanyarazi, amazu y'isuku n'amahinguriro y'imiti

IBIBAZO bibazwa

 

 

IKIBAZO CA 1: Ni igiki gikoreshwa n’umuyoboro wa ASTM A335 P9?

A1:Igikoresho c’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma vy’ivyuma.

Ikibazo ca 2: "9Cr-1Mo" bisobanura iki ku muyoboro wa P9?

A2:Bivuga ku mubumbe w’ivyuma bifise chromium n’ivyuma vyinshi vyitwa molybdenum kugira ngo bishobore guhangana n’uguhinduka kw’ibintu n’ubukomezi bw’ubushuhe burengeye -.

Ikibazo ca 3: P9 itandukanye gute na P22 canke P91?

A3:P9 ni urugero rwa 9Cr-1Mo; P22 ni 2.25Cr-1Mo, mu gihe P91 ni urugero rwahinduwe rwa 9Cr-1Mo rufise ubugenzuzi bukomeye bw’ivyuma.

IKIBAZO CA 4: Ni ubuhe bushuhe-busanzwe buvugwa ku muyoboro A335 P9 udafise umurongo?

A4:Ubushuhe bugenzurwa-ubuzima (busanzwe busanzwe kandi buteye akaga) n'inyandiko zanditswe nk'uko bisabwa n'itegeko/itegeko.

IKIBAZO CA 5: Ni igiki nosaba kugira ngo menye neza uburyo bw’imiyoboro ya P9 imbere yo kugura?

A5:3.1 MTC n’ubushobozi bwo gukurikirana ubushuhe, ibisubizo vy’ubuhinga bwa shimi/ubuhinga, n’ibisabwa NDE/hydrotest nk’uko umugambi ubisaba.

Ivyemezo

 

Icemezo ca CE

Icemezo ca ISO 9001

Icemezo ca API Q1

Icemezo ca ABS

Icemezo ca AP-5L

Icemezo ca API-5CT