Ipayipi Lensimbi Engagqwali

Ipayipi lensimbi engagqwaliiwumkhiqizo wensimbi ongagqwali{0}oyi-tubular oklanywe nxazonkeimidiya yesevisi, izinga le-chloride, izinga lokushisa, ingcindezi, nendlela yokwenza(ukushisela, ukugoba, ukucosha/ukwenza). Ipayipi "kwesokudla" alikhethwa ngegama lebanga lodwa-abathengi ngokuvamile bayakhiyaokujwayelekile (ASTM/EN/ISO), ifomu lomkhiqizo (elingenamthungo noma elishiselwe), kanye nokuhlolwa/ububanzi bedokhumentiokokuqala, bese uqinisekisa izinga nesimo esidingekayo ukuze-uthembeke isikhathi eside.

Ipayipi lensimbi engagqwali ingenye yezixazululo ezisetshenziswa kakhulu zamapayipi engxubevange kuketshezi olubolayo,{0}}isevisi yokucindezela okuphezulu, nezinga lokushisa eliphakeme. Ngaphansi kwezindinganiso ezaziwa emhlabeni wonke ze-ASTM A312 / ASME SA312, amapayipi ensimbi engagqwali akhiqizwa ngamafomu angenamthungo, ashiselwe, futhi abanda kakhulu{4}}ukuze ahlangabezane nezimfuneko eziqinile zezimboni ezifana nowoyela negesi, i-petrochemical, ukukhiqiza amandla, ukuhlanzwa kwamanzi, ukudla nesiphuzo, nokwakha.

Njengoinsimbi engagqwali ipayipi umenzikanye nokuthekelisa-nozakwethu wokuhlinzeka ngomumoipayipi lensimbi engagqwali China, I-Octal Pipe inikeza amapayipi ensimbi engagqwali anezinga elibanzi, ukulawula okunembe kwe-dimensional, nokuqinisekiswa kwekhwalithi okuqinile. Imikhiqizo yethu iqinisekiswa kumazinga amakhulu omhlaba (i-ASTM, i-ASME, i-EN, i-DIN) futhi yakhelwe ukuhlangabezana nezidingo ezithile zamakhasimende kuzo zombili izinhlelo zenqubo ebalulekile kanye nezinhlelo zokusebenza zesakhiwo.

I-Octal Pipe ihlinzeka ngamapayipi ensimbi engagqwali akhiqizwe ngokuhambisana ne-ASTM A312 / ASME SA312 namanye amazinga omhlaba. Lawa mapayipi atholakala ngamafomu angenamthungo, ashiselwe (RW/EFW), futhi abanda kakhulu (HCW), anikeza ukumelana nokugqwala okuhle kakhulu, amandla okushisa aphezulu, kanye nokunemba kobukhulu.
Ngamabanga ahlanganisa i-TP304/304L, TP316/316L, TP321, TP347, TP310S, Duplex 2205, kanye ne-Super Duplex 2507, amapayipi ethu ensimbi engagqwali asebenza ezimbonini eziningi ezihlanganisa uwoyela negesi, i-petrochemical, ukucubungula amakhemikhali, ukwakhiwa kwamanzi, ukukhiqiza amandla nokwakhiwa kokudla.

1.Scope & Base Standards

• ASTM A312 / ASME SA312 – Ipayipi lensimbi engagqwali ye-Austenitic ukugqwala okujwayelekile kanye{0}}nesevisi yezinga lokushisa eliphezulu; ihlanganisa i-Seamless (SMLS), Eshiselwe (nge/ngaphandle kokugcwalisa), kanye Ne-Heavily Cold Worked (HCW).
• Izithenjwa zobukhulu: ASME B36.19M (osayizi/izisindo zamapayipi angagqwali) kanye ne-ASME B36.10M (uma kusebenza).
• Ukuhlola nokubhala: EN 10204 3.1/3.2 izitifiketi zokuhlola; iklayenti ozikhethela i-ITP/ufakazi.

2.Amazinga Ahlobene

• I-ASTM A213 / SA213- Amashubhu e-boiler kanye ne-superheater.
• I-ASTM A269 - Isevisi ejwayelekile / ishubhu yezinsimbi.
• I-ASTM A358 – -enkulu kagesi{2}}ehlanganisiwe{3}}eshiselwe (EFW) austenitic pipe.
• I-ASTM A789 / A790 - I-Duplex ne-Super Duplex amapayipi angenasici.
• I-TS EN 10216-5 / EN 10217-7 Amashubhu angenamthungo / ashiselwe ngezinhloso zengcindezi.
• Isevisi emuncu ongayikhetha: I-NACE MR0175 / ISO 15156.

3.Imindeni Yebanga Elinikezwayo

• I-TP304 / TP304L – 18Cr-8Ni; inhloso jikelele, weldable futhi formable.
• I-TP316 / TP316L – i-Mo-ethwele, ihamba phambili kusevisi ye-chloride.
• I-TP321 / TP347 – I-Ti/Nb izinzile, ivimbela ukugqwala kwe-intergranular post{2}}ukushisela.
• I-TP310S – I-Cr Ephakeme{{1}I-Ni, imelana ne-oxidation ezingeni lokushisa eliphakeme.
• I-Duplex 2205 / Super Duplex 2507 - Amandla aphezulu, ukumelana okuhle kwe-SCC.

4.Imibhalo & Ukulandeleka

• Ama-MTR anokuhlaziywa kwamakhemikhali, imiphumela yemishini, amarekhodi e-NDT, izingodo zokwelashwa kokushisa.
• Inombolo yokushisa isitembu ukuze kulandeleke ngokugcwele.
• Ukuhlolwa kwe-PMI kuyatholakala uma uceliwe.
• Ukugqwala kokuzikhethela nokuhlolwa kwe-IGC (ASTM A262, G48).

316L Ipayipi Lensimbi Engagqwali

316L ipayipi yensimbi engagqwaliivamise ukucaciswa ku-chloride-okuthela amanzi, isevisi yamakhemikhali amaphakathi, nezinsiza zasolwandle-eziseduze ngoba i-Mo{2}}bearing chemistry ithuthukisa ukumelana ne-pitting uma iqhathaniswa no-304/304L, kuyilapho ibanga elithi "L" lisekela ukwenziwa okuphephile ngokunciphisa ubungozi bokuzwela ngemva kokushisela.

Ekuthengeni,316L ipayipi yensimbi engagqwalikufanele kuchazwe ngu: (1) izinga elibusayo (isb., i-ASTM A312 TP316L), (2) usayizi neshejuli, (3) isimo sendawo (ecoliwe/iphasisiwe uma kudingeka), kanye (4) nobubanzi bokuhlolwa kanye nemibhalo-ngakho ipayipi elilethiwe lifana kokubili umsebenzi wesevisi kanye nemibandela yokwamukela isitshalo.

Ipayipi lensimbi engagqwali ngokuvamile linikezwa njengeengenamthungonomaezishiselwe, futhi ukukhetha okulungile kuvame ukunqunywa yi-umsebenzi (ingcindezi/izinga lokushisa/ukulayisha ngomjikelezo), indlela yokwenza, kanye nobubanzi bokuhlola obudingwa iphrojekthi ye-ITP. Ekuthengeni, "i-seamless vs welded" incane mayelana nokuthandwayo futhi imayelana nokuthi isevisi iyakuvumela yini i-weld seam-nokuthi leyo seam izokwamukelwa futhi ibhalwe kanjani. Ngokuvamile lena yindlela i-Octal Pipe ezimele ngayo ukukhetha lapho icaphuna{3}}amaphakheji angenasici axubile.

Ipayipi lensimbi engenamthungokuvame ukukhethwa lapho umsebenzi uqinile{{0}ukucindezela okuphezulu, izinga lokushisa eliphezulu, noma ibhayisikili elishisayo elidinga kakhulu{1}}futhi lapho abathengi befuna umzimba wepayipi olinganayo ngemigqa yenqubo ebalulekile. Kuphinde kube umzila osebenzayo wamadayamitha amaningi amancane lapho ukutholakala okungenazihibe kunamandla futhi okushiselwe{3}}ukubuyekezwa komthungo kungeza ubunkimbinkimbi obungadingekile ekutholeni. Izimbangela eziyinhloko zokukhetha zihlanganisa:

• I-spec/ikhodi idinga ngokusobala i-seamless
• Isevisi-yokushisa ephezulu noma yomjikelezo lapho idizayini elondolozayo ikhethwa khona
• Ivumela ukubekezelelana okuqinile{0}}kuma-spool akhiwe ngaphambili

Ipayipi lensimbi engagqwali elishiselwe(ERW/EFW) ngokuvamile ikhethelwa amadayamitha amakhulu, ama-run amade, kanye -namaphakheji asebenza kahle abizayo lapho ukucaciswa kuvumela ukwakhiwa okushiselwe. Lapha ukugxila kokuthengwayo kushintshela ekwamukelweni komthungo{2}}ekulawuleni inqubo yokushisela, ububanzi be-NDT (UT/RT lapho kufanele), kanye nezimfuneko zesimo esiphezulu (i-pickling/passivation) ezithinta ukuhlanzeka kokugunyazwa. Kumaphakheji ashiselwe, i-Octal Pipe ngokuvamile iqondanisa ububanzi bokuhlola umthungo kanye nemibhalo endleleni yokwamukela iphrojekthi ukuze ukukhishwa kwesayithi kungabambeki ekuchazeni.

Amazinga ajwayelekile asetshenziswa kumaphrojekthi afakaI-ASTM A312(ipayipi elingenalutho le-austenitic),I-ASTM A790(ipayipi elingagqwali eliyi-duplex),I-ASTM A213(amashubhu okushisa / okushisa),I-ASTM A269(ishubhu yezinsimbi), kanyeI-ASTM A358(enkulu-OD eshiselwe ipayipi le-austenitic).

Uma uhlola i-ainsimbi engagqwali ipayipi umenzi, empeleni okuhlukanisa umthombo onokwethenjelwa koyingozi yizinga lokuphindaphinda-kwemboni:ukuqinisekiswa kwebanga, ubuqotho be-weld (yepayipi elishiselwe), ukuzinza kwe-dimensional, isimo sobuso, kanye nokulandeleka. Njengoinsimbi engagqwali ipayipi ifektri-usekelwe umhlinzekiipayipi lensimbi engagqwali China, i-Octal Pipe isethelwe ukukhipha ipayipi elingenasici elinezilawuli abathengi abangazicwaninga kumaphrojekthi wangempela-ikakhulukazi kumaphakheji{1}}ebanga axubile lapho 304L kanye316L ipayipi yensimbi engagqwaliayikwazi ukuvunyelwa ukuwela.

Izindawo zethu zokulawula eziseceleni zasembonini ngokuvamile zihlanganisa:

• Ukuqinisekiswa kwe-PMI / chemistry (uma kudingeka):ivimbela{0}ukuhlangana kwebanga{1}okungalungile, ingozi evamile yokwamukela ezintweni zomugqa ezingu-304L/316L.
• Ukulawula ubukhulu:I-OD/WT, i-ovality, ukuqondisa-lokhu kunquma ukufaneleka{1}}kwejubane lama-spool okwenziwa ngaphambilini kanye nokugijima okude.
• Ukuqinisekiswa komthungo we-Weld (kumapayipi ashiselwe):Emikhakheni yokukhiqiza efana nepayipi lensimbi engu-316L, sikhiya imingcele yokushisela (iwindi lokufaka ukushisa, isivinini sohambo, ukumbozwa kokuvikela) futhi silandelele ukuzinza komthungo{1}}ngokuqapha komugqa; iphrofayili ye-weld bead ilawulwa ngokwesisekelo sokwamukela iphrojekthi (ngokuvamile echazwa njengemingcele yobude bobuhlalu/i-undercut kanye nokuqondanisa njengomsebenzi wokuqina kodonga), futhi ukuphatha ubuhlalu bangaphakathi kulawulwa lapho kudingeka khona ukuze kugcinwe ubuhlalu obuhambisanayo bokwenziwa nokugeleza kwenkonzo.
• Isiyalo sesimo sobuso:Izidingo zokukhetha/ukudlula kanye nenhlanzeko ezichazwe ukugwema "kubukeka KULUNGILE, kwehluleke kusevisi/ukuthumela" izimanga.
• Khipha ukupakishwa nokukhishwa kwemephu:Ngobaipayipi lensimbi engagqwali Chinaukuhlinzeka, ubungozi obujwayelekile bephrojekthi ukuxutshwa kwebanga{0}phezulu, ukulimala kwendawo, kanye nokukhululwa okulibazisekayo ekutholeni. I-Octal Pipe inciphisa lokhu ngokumaka okucacile, ukuvikela ukuphela, izinketho zokupakisha inqwaba/uhlaka, kanye -nokuningi okususelwe kokukhishwa kwephekhi eliveza amamephu.ukumaka ipayipi → MTC → amarekhodi okuhlola. Umphumela ulula: izimangalo ezimbalwa,-ukuhlola kabusha imijikelezo embalwa, kanye nokukhululwa kwe-warehouse okusheshayo{2}}ngoba ipayipi lifika njengesistimu elawulwayo, hhayi inqwaba yezinto.

Yingakho abathengi abaningi beseshainsimbi engagqwali ipayipi umenzinomainsimbi engagqwali ipayipi ifektriphakathiipayipi lensimbi engagqwali Chinaakanandaba nezicelo ezijwayelekile kanye nokunye mayelana nokuthi umphakeli angaletha yini umphumela ofanayo ngokuqhubekayo: ibanga elilungile (kuhlanganise316L ipayipi yensimbi engagqwali), ubukhulu obulungile, indawo efanele, kanye nobufakazi obufanele bokuhlola-ngaphandle kokusebenza kabusha ekutholeni.

Njengomkhiqizi Wepayipi Lensimbi Engagqwali, i-Octal Pipe ikhipha ipayipi elingagqwali elinamapharamitha okukhiqiza alawulwayo, ubuqotho bomthungo oqinisekisiwe (lapho kufanele khona), namarekhodi okuhlola alandelekayo.

1.I-Seamless (SMLS)

• Inqubo: Ukushisisa i-billet → Ukubhoboza → Ukugingqika → Usayizi → Ukuhlanganisa Isixazululo → Ukukhetha → Ukuhlola.
• Inzuzo: Awukho umthungo wokushisela, othembekile-ekucindezelweni okuphezulu kanye nesevisi ebalulekile.

2.Ishiselwe (ERW/EFW)

• Inqubo: Ukwakhiwa kwe-strip noma ipuleti → Ukushisela okude/okuvunguzayo → Ukuhlanganisa isixazululo → Usayizi → Ukuqondisa.
• Izindlela zokushisela: ERW/HFI, TIG/GTAW, SAW, EFW kuye ngokuthi OD/WT.
• Inzuzo: Izindleko-ezisebenzayo, ukutholakala kosayizi obanzi, izinketho zokuhlanzeka ngokususa ubuhlalu.

3.Ubanda Kakhulu (HCW)

• Inqubo: Ukuncishiswa okubandayo epayipini elishiselwe + i-annealing.
• Inzuzo: Amandla angeziwe, ukubekezelelana okuqinile, ukuphela okushelelayo.

4.Ukwelashwa Kokushisa Nobuso

• Isixazululo se-Annealing: 1050–1150℃quench ngokushesha.
• Izinketho Zobuso: I-annelled & pickled, i-annealed ekhanyayo, i-satin-epholishiwe, isibuko{1}}epholishiwe.

5.Ukulawulwa Kwekhwalithi

• Ukuhlolwa kwe-Hydrostatic, i-Eddy Current/UT, i-Radiography emthungo nomzimba.
• Ukuhlolwa kwemishini: Ukuqina, ukuvunwa, ubulukhuni, ukucaba/ ukuvutha.
• Ukuhlolwa kokugqwala okungakhethwa: ASTM A262 (IGC), ASTM G48 (pitting).

Lapho umthengi imithomboipayipi lensimbi engagqwali China, ubungozi bangempela akukhona ukuthi "ingabe isigayo singenza i-stainless"-ukuthi umphakeli angakwazi yinibamba ibanga + usayizi + isimo sobusongokuqhubekayo kulo lonke iphakheji. Uhlelo lwe-Octal Pipe lwakhiwe eduze kwalelo qiniso: amashubhu angenamthungo obubanzi be-OD obuqinile nendawo elawulwayo, kanye nepayipi elishiselwe amadayamitha amakhulu, konke okukhishwe emzileni wefekthri ohlanganisa ukugingqika/ukudweba, ukwelapha ukushisa, ukuqondisa, nokucosha emugqeni owodwa.

Kusho ukuthini lokhu ku-PO yangempela kulula. Uma iphrojekthi idinga316L ipayipi yensimbi engagqwali(ngokuvamile ixutshwe ne-304L/321 noma i-duplex), i-Octal Pipe ingagcina iphakheji ihlanzekile ngokukhiqiza ngaphakathi kwamawindi e-OD avamile-angenamthungo kuze kubeΦ630 mmfuthi welded up toΦ2620 mm, ngokuqina kodonga ngokuvamile1–35 mm-ukuze ukulinganisa akuphoqi "izindlela zokulungisa" phakathi-nokucaphuna. Ohlangothini lokukhiqiza, umzila{3}uqhutshwa ngamathuluzi: a280 isigayo + esicwecwayo, beseukugoqa okubandayo/umdwebo obandayo, ulandelwa nguukukhishwa kwegesi-yemvelofuthiukukhaokokulungisa ubuso, futhi ekugcineniukuqondisangaphambi kokukhululwa. Lolo chungechunge lwezinqubo yilo olusekela ukuziphatha okuzinzile{1}phezulu nokubikezelwa kokwenziwa, hhayi nje igama lebanga ephepheni.

Amazinga namabanga ahlanganiswa ngendlela ama-EPC athenga ngayo: amapayipi avamile/amashubhu ukuzeI-ASTM/ASME (A312/A213/A269; A789/A790), plusEN (10216-5/10216-2), DIN (17456/17458), JIS (G3459/G3463), GOST (9941/5632), kanye ne-GB (14975/14976, 13296, 5310, 9948). Ukutholakala kwebanga ngokuvamile kuhlanganisa imindeni ye-austenitic (TP304/304L, TP316/316L, TP321, TP347, TP310S, TP317L, 904L), i-duplex/super duplex (S31803/S32205/S32750) kanye ne-nickel ekhethiwe (N08825/N08904/N08028/N08800). Ngamafuphi: ainsimbi engagqwali ipayipi umenziamandla ahlanganisa kokubili "isitshalo sansuku zonke esingenasici" kanye nokugqwala{0}}okubalulekile kwamaphakheji, ngomzila wefekthri wepayipi lensimbi engagqwali ongagcina okukhiphayo kuvumelana kuwo wonke amadayamitha namazinga.

Xhumana manje

FAQ

 

 

Q:304 vs 316L ipayipi lensimbi engagqwali - iliphi okufanele ngilicacise?

A: Uma ulayini uzobonaama-chloride(amanzi okupholisa, ukuwasha, umoya wasogwini, i-brine splash),316/316Livamise ukucaciswa ngenxa yokuthi i-molybdenum ithuthukisa ukumelana nokuhlasela okwenziwe kwendawo kwe-pitting/crevice uma kuqhathaniswa nochungechunge lwe-304.316Lkuvame ukuncanyelwa ama-spools ashiselwe ukunciphisa ubungozi bokuzwela ngemuva kokushisela.

Q:ASTM A312 vs ASTM A213 vs ASTM A269 - yini umehluko (ipayipi vs tube)?

A:Cabanga "ifomu lesevisi + lomkhiqizo":I-ASTM A312ayinabalaipayipingezinga lokushisa eliphezulu{0}eziphezulu kanye nesevisi evamile ebolayo (engenamthungo noma eshiselwe).I-ASTM A213kuyintoengenamthungoi-boiler/superheater/heat{0}}exchangeramashubhu, futhiI-ASTM A269ayinabalaishubhu(okungenamthungo noma okushiselwe) ukuze kutholwe ukugqwala okuvamile-okumelana, okuphansi/okuphezulu{1}}kwesevisi yezinga lokushisa.

Q:Seamless vs welded stainless steel pipe - ngingakhetha kanjani ngaphandle{1}}okungaphezu kokucacisa?

A:Khethaengenamthungolapho umsebenzi noma i-spec iqinile (ingcindezi ephezulu/izinga lokushisa, ukugibela amabhayisikili okuqinile, noma "kudingeka kungenamthungo"). Khethaezishiselwelapho okucaciswayo kuyivumela futhi iphrojekthi izuza ku-OD/WT ezinzile kanye nokutholakala-bese ulawula ubungozi ngokuchazaumthungo NDT ububanzi(UT/RT/ET nge-ITP ngayinye) kanye nezimfuneko zesimo sendawo ku-PO.

Q:Ngifaneleka kanjani umakhi/imboni yepayipi lensimbi engagqwali e-China ngaphambi kokubeka i-PO?

A: Cela iEN 10204 3.1isitifiketi esiboshelwe endaweni enikeziwe (imiphumela yokuhlolwa + isitatimende sokuthobela umthetho), futhi sidinga ukulandeleka kusukaukumaka ipayipi → MTC → amarekhodi okuhlola; engeza i-PMI lapho-ubungozi bemiksi buphezulu (isb, amaphakheji angu-304L + 316L). Lena indlela eshesha kakhulu yokususa-ingozi yokuthola "i-stainless steel pipe China" futhi ugweme ukuthola{7}}ukubambezeleka kokukhishwa.

Izitifiketi

 

Isitifiketi se-CE

Isitifiketi se-ISO 9001

Isitifiketi se-API Q1

Isitifiketi se-ABS

Isitifiketi se-AP-5L

Isitifiketi se-API-5CT

 

OD:6 mm - 1200 mm

Ubukhulu Bodonga:0.3 – 50 mm (SCH 5S ukuya ku-XXS)

Ubude:6m, 12m, 20FT, 40FT, ukusika ngokwezifiso

Iyaphela:I-beveled, icacile, ihlanganiswe nama-couplings

I-Surface Finish:I-A/P, BA, ipholishiwe, isibuko

Amashadi ashisayo: ipayipi yensimbi engagqwali, China abakhiqizi ipayipi yensimbi engagqwali, abahlinzeki, ifektri