Izinto ezingundoqo (intsimbi exhasayo – iindlela ezininzi):
Izinto ezingundoqo (intsimbi exhasayo – iindlela ezininzi):
● SA-210 Gr.C(ASME SA-210) – uhlobo lwetyhubhu yebhoyila yentsimbi yekhabhoni
● SA-106 Gr.B(ASTM A106) – umbhobho wentsimbi yekhabhoni enobushushu obuphezulu
●I-API 5L X52 / X60 / X65(API 5L PSL2) – amanqanaba emibhobho yomgca yeoyile negesi
●I-ASTM A333 Gr.6(A333 Gr.6) – intsimbi yekhabhoni enobushushu obuphantsi
●I-ASTM A335 P11 / P22(A335 P11/P22) – Intsimbi ye-Cr-Mo alloy yobushushu obuphezulu
Isigqubuthelo (i-CRA liner):I-316L (UNS S31603 / 1.4404) – intsimbi engagqwali e-austenitic enekhabhoni ephantsi, ilungile kakhulu ekuchaseni i-CO₂, iyakwazi ukudityaniswa kakuhle, imelana ne-oxidation ngokubanzi kunye nee-asidi ezithambileyo, i-PREN 24 26
Uluhlu Lobukhulu:I-OD 25 – 168 mm (i-extrusion engenamthungo) kunye ne-OD 168 – 1219 mm (i-hot roll bonded + JCOE). Ubukhulu bodonga oluphambili yi-3 – 40 mm. Ubukhulu be-cladding yi-1.5 – 3.5 mm. Ubude obunye ukuya kuthi ga kwi-15 m (engenamthungo) okanye i-24 m (edibeneyo).
Inkqubo:Ukukhupha okushushu (okungenamthungo) okanye ukubopha okushushu kwe-roll + i-JCOE yokwenza (okudibeneyo). Amandla okucheba kwe-bond ye-Metallurgical ≥200 MPa (okudibeneyo) okanye ≥300 MPa (okungenayo i-mthungo). I-100% NDT, uvavanyo lwe-hydro, ukuthamba, ukutsalwa. Ukugqitywa okucoliweyo nokungashukumiyo.
Imigangatho:ICandelo le-ASME II Icandelo A, i-API 5LD, i-ASTM A106/A333/A335/SA-210, i-EN 10216-2, i-EN 12952-2, i-NACE MR0175 (316L ifanelekile ukuya kuthi ga kwi-60°C). Uvavanyo ngokwe-ASTM E213, i-ISO 10893 10.
Izicelo:Iindonga zamanzi ebhoyila, izinto ezigcina uqoqosho, izinto ezitshintsha ubushushu, imibhobho yobushushu obuphantsi, imigca yokufaka i-CO₂, ukuqokelela igesi yendalo emnandi, imibhobho edibanisa indawo yokuhluza, imibhobho yezityalo zeekhemikhali.
Intsimbi yeWomicngumvelisi ochwephesha wemibhobho egqunywe nge-316L eneendidi ezahlukeneyo zeentsimbi ezingasemva. Sibonelela ngezisombululo ezibotshelelwe ngesinyithi, ezingamelaniyo nokugqwala kwizityalo zamandla, ioyile negesi, i-petrochemical, kunye nenkonzo yobushushu obuphantsi. Ubungakanani obulungiselelwe wena kunye nokuhlolwa komntu wesithathu kuyafumaneka. Qhagamshelana nathi ukuze ukhethe umgangatho kunye nekowuteshini.
1. Kutheni i-316L Lined Clad Pipe? Eyona CRA Liner ixhaphakileyo nesebenziseka lula
I-316L (UNS S31603 / 1.4404) yiyoi-alloy enganyangekiyo yokugqwala (i-CRA) echazwe kakhulu kwipayipi egqunyiweyokuba ilungelelanisa ukumelana nokugqwala okugqwesileyo, ukudityaniswa kakuhle, kunye nexabiso eliphakathi. Xa kuthelekiswa ne-304L, i-316L yongeza i-2-3% ye-molybdenum, ephucula kakhulu ukumelana nokugqwala kwiindawo ezine-chloride.
Amandla aphambili e-316L njenge-liner:
● Ukumelana okugqwesileyoukugqwala kwe-CO₂(inkonzo emnandi)
● Ukumelana okuhle nokunyibilikisa i-sulfuric, ii-organic acids, kunye nemijelo emininzi yamakhemikhali
● Ixabiso eliphantsi kune-duplex, super duplex, okanye i-nickel alloys
● Ifumaneka ngokubanzi, iqondwa kakuhle ngabakhi kunye nabasebenzisi bokugqibela
● Uhlobo oluphantsi lwekhabhoni (≤0.03%) luthintela uvakalelo ngexesha lokuwelda
● Ingasetyenziswa ukuya kuthi ga kwi ~450°C kwinkonzo yokugqwala
Kutheni udibanisa i-316L neentsimbi ezahlukeneyo ezingasemva?Ngenxa yokubaiimfuno zoomatshini nezobushushuyahluka:
| Intsimbi Exhaswayo | Umgangatho | Amandla kunye neSicelo | Ukukhetha nini |
| I-SA-210 Gr.C | I-ASME SA-210 | Iityhubhu zebhoyila, iindonga zamanzi, izinto ezigcina uqoqosho | Usetyenziso lwebhoyila yamandla enobushushu besinyithi ≤450°C |
| I-SA-106 Gr.B | I-ASTM A106 | Imibhobho yobushushu obuphezulu (ukuya kuthi ga kwi-425°C) | Iintambo zokucoca kunye nokudluliselwa kweekhemikhali |
| I-API 5L X52/X60/X65 | I-API 5L | Umbhobho womgca onamandla aphezulu weoyile negesi | Imibhobho yaselunxwemeni/elunxwemeni, i-CO₂ injection |
| I-ASTM A333 Gr.6 | I-ASTM A333 | Inkonzo yobushushu obuphantsi (-45°C) | Imibhobho yeArctic, ukuqokelelana kwemimandla ebandayo |
| I-ASTM A335 P11/P22 | I-ASTM A335 | Ubushushu obuphezulu, obumelana nokurhubuluza | Iityhubhu zeSuperheater, iiheaders zobushushu obuphezulu |
Ngokukhetha okuchanekileyoumqolo + i-claddingxa udibanisa, uyakuphepha ukucacisa ngokugqithisileyo (ukuhlawula amandla okanye i-alloy engeyomfuneko) okanye ukungachazi kakuhle (ukungaphumeleli ngaphambi kwexesha).
2. Iinketho zentsimbi engasemva + i-316L Cladding – Idatha eneenkcukacha
2.1 SA-210 Gr.C / 316L (Isitshintshi sobushushu kunye neBoiler)
| Ipharamitha | I-SA 210 Gr.C | Isigqubuthelo se-316L |
| I-min yemveliso (i-MPa) | 245 | 170 |
| Ubunzima bokutsalwa (MPa) | 485 | 485 |
| Ubushushu obuphezulu (°C) | 450 | 450 (iyakonakalisa) |
| Isicelo esiphambili | Iindonga zamanzi ebhoyila, izinto ezigcina uqoqosho | ukhuseleko lokugqwala kwe-CO₂ |
Ubukhulu obuqhelekileyo:I-OD 51-127 mm, i-core WIT 5-12 mm, i-cladding 1.5-2.5 mm.
Ithatha indawo:Intsimbi yekhabhoni engenanto (enokuchaphazeleka yimingxuma) okanye eqinileyo eyi-316L (ibiza kakhulu, amandla angeyomfuneko).
2.2 SA-106 Gr.B / 316L (Iipayipi zobushushu obuphezulu)
| Ipharamitha | I-SA 106 Gr.B | Isigqubuthelo se-316L |
| I-min yemveliso (i-MPa) | 240 | 170 |
| Ubunzima bokutsalwa (MPa) | 415 | 485 |
| Ubushushu obuphezulu (°C) | 425 | 400-450 |
| Isicelo esiphambili | Imigca yokudlulisa umatshini wokucoca, imibhobho yenkqubo | Ukugqwala okuthambileyo / inkonzo ye-CO₂ |
Ubukhulu obuqhelekileyo:I-OD 60-610 mm (ingenamthungo ukuya kuthi ga kwi-168 mm, idityaniswe ngaphaya kwayo). Ubunzima obuphambili ngokoyilo.
2.3 API 5L X52 / X60 / X65 + 316L (Umbhobho weoyile negesi)
| Ibanga | I-min yemveliso (i-MPa) | Eyona ilungileyo kwi |
| X52 | 360 | Uxinzelelo oluphakathi oluphantsi, inkonzo ye-CO₂ |
| X60 | 415 | Imibhobho yoxinzelelo oluphezulu oluphakathi |
| X65 | 450 | Uxinzelelo oluphezulu, umgama omde |
Isicelo:Imibhobho yegesi emnandi (i-CO₂ ikhona, i-H₂S iphantsi), imigca yokuhamba kwe-CO₂ ephuculweyo yokubuyisela ioyile (EOR), imigca yamanzi eveliswe.
Ubukhulu be-cladding:Ngokwesiqhelo yi-2-3 mm.
2.4 ASTM A333 Gr.6 / 316L (Ipayipi yeClad yobushushu obuphantsi)
| Ipharamitha | I-A333 Gr.6 | Isigqubuthelo se-316L |
| I-min yemveliso (i-MPa) | 240 | 170 |
| Ubushushu bovavanyo lwempembelelo | -45°C | Ayifuneki |
| Isicelo esiphambili | Imibhobho yeArctic, ukuqokelelana kwegesi kummandla obandayo | Kuphephe ukubhitya kwentsimbi yekhabhoni kubushushu obuphantsi |
Phawula:I-316L ihlala ithambile kumaqondo obushushu aphantsi; xa idibene ne-A333 Gr.6, umbhobho ogqunyiweyo ugcina ukuqina kwempembelelo ukuya kuthi ga kwi -45°C.
2.5 ASTM A335 P11 / P22 + 316L (Inkonzo yobushushu obuphezulu beCr-Mo)
| Ibanga | I-Cr (%) | Mo (%) | Ubushushu obuphezulu (°C) |
| P11 | 1.0-1.5 | 0.44-0.65 | 550 |
| P22 | 2.0-2.5 | 0.87-1.13 | 575 |
Ityala lokusetyenziswa:Iintloko zobushushu obuphezulu, iityhubhu ze-superheater, izifudumezi zokucoca apho ukugqwala kwangaphakathi ngenxa yolwelo lwenkqubo kufuna i-lining ye-316L, kodwa amandla okugqwala angaphandle afuna i-Cr-Mo alloy. I-cladding ye-316L ikhusela umphezulu wangaphakathi kwi-media egqwalisayo ngelixa i-P11/P22 inika ukumelana nokugqwala.
Phawula:Umahluko wokwandiswa kobushushu uyalawuleka; ikhonkco le-metallurgical liqinisekisa ukuba akukho kwahlukana phantsi komjikelo wobushushu.
3. Iinkqubo zoMveliso – Akukho mthungo (ukukhupha) xa kuthelekiswa neWelded (Hot Roll + JCOE)
| Uphawu | Ayinamthungo (OD ≤168 mm) | I-Welded (OD 168-1219 mm) |
| Ibhilethi / i-slab | I-billet edityanisiweyo (ityhubhu - ukubumba) | Ipleyiti ebotshelelwe nge-vacuum roll |
| Ukwakheka okuphambili | Ukukhupha okushushu | I-JCOE okanye i-UOE press |
| Umthungo we-longitudinal | Akukho nanye | Umthungo omnye we-SAW ojikelezayo |
| Amandla okucheba i-bond | ≥300 MPa | ≥200 MPa |
| Ukunyamezelana | Iqinile kakhulu | I-API/ASME esemgangathweni |
| Ubude obuqhelekileyo ukuya kuthi ga | 15 m | 24 m |
| Eyona ilungileyo kwi | Iityhubhu zebhoyila, umtshintshi wobushushu ii-U-bends, ububanzi obuncinci | Iipayipi zomgama omde, izinyusi ezinkulu ezinobubanzi |
Zombini ezi ndlela zibonelelaibhondi yesinyithiezingayi kwahlukana phantsi kweemeko zenkonzo. Kwiityhubhu ezininzi zebhoyila kunye ne-heat exchanger (≤6″), i-seamless iyakhethwa. Kwiipayipi zokuhambisa (≥8″), i-hot roll + JCOE ixabisa kancinci kwaye iqinisekisiwe.
Amanyathelo enkqubo aqhelekileyo:
1. Ukulungiswa kwe-billet / ipleyiti edityanisiweyo (umaleko we-316L ubekwe kwicala elingaphakathi)
2. Ukuvalwa kwe-vacuum ukuthintela i-oxidation
3. Ukukhupha okushushu (okanye ukuqengqeleka okushushu)
4. Unyango lobushushu (ukufakelwa kwesisombululo se-316L; ukulungisa / ukufudumala kwentsimbi engasemva)
5. Ukugqiba okubandayo (umzobo okanye ubungakanani)
6. Ukuqhotsa kunye nokungakhathali
7. 100% NDT (UT yebhondi, ukuwelda, kunye nomthamo)
8. Uvavanyo lwe-Hydrostatic
9. Gqibezela ukugqiba kunye nokupakisha
4. Inkqubo yoHlolo noVavanyo (Eqhelekileyo kuzo zonke iintsimbi ezixhasayo)
Sisebenzisa uvavanyo ngokwemigangatho efanelekileyo yezinto ezixhasayo kunye neenkcukacha zombhobho ogqunyiweyo (API 5LD okanye ngokwezifiso).
| Uvavanyo | Indlela | Ububanzi | Ukwamkelwa |
| I-Bond UT | Umzimba opheleleyo, igagasi lokucheba | 100% | Akukho disbond >50mm, iyonke <2% |
| I-UT ende | I-ASTM E213 / ISO 10893 10 | 100% | Akukho zimpendulo zingamkelekiyo |
| I-Hydrostatic | Uxinzelelo loyilo lwe-1.5 × | Umbhobho ngamnye | Akukho kuvuza |
| Ukutyhala (umqolo) | Ngokwe-A106/SA-210/API/A333/A335 | Ngobushushu ngabunye | Nxibelelana nebanga eliphantsi |
| Ukutsalwa (amandla ebhondi) | Cinezela okanye uchebe indandatho | Ngebhetshi nganye | ≥200 MPa (edityanisiweyo) / 300 MPa (engenamthungo) |
| Ukuqina | HV10 | I-core + i-cladding | 316L ≤200 HV; umva ≤ i-spec |
| Ukuthambisa | I-ASME SA 450 | Ngebhetshi nganye | Akukho mifantu ukuya kwi-2/3 OD |
| I-PMI (316L) | I-XRF | Ityhubhu nganye | Qinisekisa i-alloy |
Uvavanyo olongezelelweyo xa luceliwe:I-Charpy impact (ukubuyela umva kubushushu obufunekayo), i-intergranular corrosion (ASTM A262 Practice E kwi-316L), i-NACE TM0177 / TM0284 yenkonzo emuncu (i-316L yamkelekile kuphela ukuya kuthi ga kwi-60°C kunye noxinzelelo oluncinci lwe-H₂S).
Isatifikethi:EN 10204 Uhlobo 3.1 olusemgangathweni. Uhlobo 3.2 olunengqina lesithathu (SGS, BV, DNV, TÜV, ABS) luyafumaneka ngexabiso elongezelelweyo.
5. I-Application Matrix – Yeyiphi iBacking Steel + 316L yeyiphi iNkonzo?
| Indawo yeNkonzo | Intsimbi Exhaswayo | Ukubopha | Izimvo |
| Udonga lwamanzi ebhoyila (oluncinci) | I-SA-210 Gr.C | 316L | Ikhusela ekungcolisweni yioksijini, ukucoca iasidi |
| Usoqoqosho | I-SA-210 Gr.C | 316L | Ukhuseleko lwe-pH ephantsi |
| Isifudumezi samanzi okuhambisa amanzi (inkonzo emnandi) | I-SA-106 Gr.B | 316L | Ukumelana nokugqwala ngokubanzi |
| Ukuqokelelana kwegesi yendalo ye-CO₂ (elunxwemeni) | I-API 5L X52/X60 | 316L | Isisombululo esiqhelekileyo segesi emnandi |
| Umgca wenaliti ye-CO₂ EOR (uxinzelelo oluphezulu) | I-API 5L X65 | 316L | Amandla aphezulu afunekayo ukuze kucinezelwe i-CO₂ |
| Umbhobho wegesi weArctic | I-A333 Gr.6 | 316L | Uvavanyo lwempembelelo kwi -45°C luyafuneka ukuze kubuyiselwe umva |
| Umgca wokudlulisa umatshini wokucoca (400 450°C) | I-SA-106 Gr.B | 316L | Ubushushu obuphakathi obuphezulu + ukugqwala kwangaphakathi |
| I-superheater / i-header yobushushu obuphezulu | A335 P11/P22 | 316L | Amandla okurhubuluza avela kwi-Cr-Mo, i-corrosion liner |
| Imibhobho yeekhemikhali enoxinzelelo oluphantsi | A106 Gr.B | 316L | Umbhobho onemibhobho osebenza kakuhle ngexabiso elifanelekileyo |
Kwindibaniselwano nganye, iWomic Steel inokunceda ekulungiseni ubukhulu be-cladding (ukusuka kwi-1.5 mm ukuya kwi-3.5 mm) ngokusekelwe kwimvume yokugqwala kunye nobomi boyilo (ngesiqhelo iminyaka engama-20-30).
6. Izinto ezibalulekileyo zokuqinisekisa umgangatho kunye nokulandelelwa
● Ubushushu ngabunye bentsimbi engasemva kunye ne-316L bubhalwe ngokupheleleyo kunye nezatifikethi ze-EN 10204 3.1 zomthengisi.
● Iingxelo zenkqubo: ubushushu bokukhupha/bokuqengqeleka, itshathi yobushushu bexesha lonyango lobushushu, uhlalutyo lokuhlamba nge-pickling.
● Ityhubhu nganye ifumana amanani obushushu ahlukileyo (zombini iileya) ezifakwe isitampu okanye ezifakwe istencil.
● Ingxelo yokugqibela yohlolo ibandakanya iirekhodi ezibonisa ubukhulu, i-UT, i-hydro, kunye nemiboniso.
● Sigcina iisampulu zovavanyo olutshabalalisayo (ukucheba i-bond, ukutsalwa) kangangeminyaka eli-10.
Siyamkela kwaye siyancedaUhlolo lweQela lesithathukuzo zonke izigaba. Amaqumrhu okuhlola aqhelekileyo: SGS, BV, DNV, TÜV, ABS, LR. Kwiiprojekthi ezifunaUhlobo lwe-EN 10204 3.2, sisebenzisana nearhente size sikhuphe izatifikethi ngokufanelekileyo.
7. Ukupakisha, Ukuthumela kunye namaxesha okuKhokela
Ukugqitywa komphezulu:Ifakwe i-pickle kwaye ingasetyenziswa (esemgangathweni). Ukuze igcinwe ixesha elide, umphezulu wangaphandle we-carbon steel backup ungafakwa ioyile. Umphezulu wangaphakathi we-316L awusebenzi – akukho oyile ifunekayo.
Ukhuseleko lokugqibela:Iikhaphu zeplastiki (iikhaphu zentsimbi zodonga olunzima).
Ukudibanisa:Ububanzi obuncinci (≤88.9 mm) kwiibhanti zehex ezibotshelelwe ngentsimbi ezinee-spacers zokhuni. Ii-cradles ezinkulu zobubanzi obuhlukeneyo.
Ukufakwa kwiikhonteyina:Izikhongozeli eziqhelekileyo ezingama-20′ okanye ezingama-40′ ubude obuyi-≤12 m. Vula irakhi ephezulu okanye ethe tyaba ukuze ufumane ububanzi obude.
Amazibuko olwandle:I-FOB Shanghai, Tianjin, Qingdao (okanye naliphi na izibuko laseTshayina). I-CIF/CFR ukuya kumazibuko ehlabathi.Amaxesha okukhokela aqikelelweyo (iodolo yokuqala):
● SA-210 Gr.C / 316L: 12-14 iiveki
● SA-106 Gr.B / 316L: 12-14 iiveki
● I-API 5L X52-X65 / 316L: Iiveki ezili-14-16 (ukufunyanwa kwezinto zombhobho womgca)
● A333 Gr.6 / 316L: Iiveki ezili-14-16
● A335 P11/P22 / 316L: Iiveki ezili-16-20 (ukufumana i-alloy ekhethekileyo)
Ukuphinda iiodolo kudla ngokuthatha iiveki ezi-2 ukuya kwezi-4 zibe mfutshane. Ubungakanani bovavanyo (100 ukuya kwiimitha ezingama-300) bungakhawuleziswa - qhagamshelana ukuze ufumane ukuba kunokwenzeka na.
Ubungakanani obuncinci be-odolo:Akukho MOQ ingqongqo; iibhetshi ezincinci zovavanyo ziyamkelwa ukuze kufunyanwe iziqinisekiso. Iiodolo ezinkulu (ezingaphezulu kwe-500 yeemitha) zifumana amaxabiso angcono.
8. Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo) – Umbhobho Weentsimbi Ezine-316L Ezineentsimbi Ezixhasayo Ezahlukeneyo
Q1: Lithini iqondo lobushushu eliphezulu le-316L cladding kwinkonzo yokubola?
A: I-316L ingasetyenziswa ukuya kuthi ga kwi450°C(840°F) kwinkonzo eqhubekayo yokubola. Ngaphezu koko, ukusasazeka (i-carbide precipitation) kunokwenzeka, kunciphisa ukumelana nemingxunya. Kumaqondo obushushu aphezulu, cinga nge-Alloy 825 okanye i-625 cladding.
Umbuzo 2: Ngaba umbhobho ogqunyiweyo we-316L ungasetyenziselwa inkonzo emuncu (H₂S)?
A: 316L yiinqunyelwekwinkonzo emuncu. I-NACE MR0175 / ISO 15156 ivumela i-316L kwiindawo ezimuncu kuphela ukuba: umxholo we-chloride uphantsi (<50 ppm), i-pH >3.5, ubushushu obungaphantsi kwama-60°C, kunye noxinzelelo oluncinci lwe-H₂S <0.05 psi. Kwigesi emanzi eqhelekileyo (i-H₂S ephezulu), sicebisa i-Incoloy 825 okanye i-Alloy 28 cladding endaweni yoko.
Umbuzo 3: Yeyiphi intsimbi engasemva endifanele ndiyikhethele udonga lwamanzi ebhoyila?
A:I-SA-210 Gr.Cngumgangatho weendonga zamanzi kunye nezinto ezigcina ubushushu buphantsi. Ukuba ibhoyila yakho ayibalulekanga kangako kwaye ubushushu besinyithi bungaphantsi kwama-450°C, olu lolona khetho lungabizi kakhulu.
Umbuzo 4: Ndifuna ukuqina okuphantsi kobushushu (-45°C). Ndingayisebenzisa na i-316L cladding?
A: Ewe. Khetha intsimbi engasemvaI-ASTM A333 Gr.6evavanywa ngoxinzelelo kwi -45°C. I-cladding ye-316L ayichaphazeli iimpawu zoxinzelelo; ihlala ithambile kubushushu obuphantsi. Umbhobho ogqunyiweyo ngokubanzi unokunikezelwa ngovavanyo olupheleleyo lweCharpy.
Umbuzo 5: Kwimibhobho ye-CO₂ enoxinzelelo oluphezulu (1500 psi, 80°C), yeyiphi indibaniselwano oyicebisayo?
A:Inkxaso ye-API 5L X65(ukuze ufumane amandla) +Isigqubuthelo se-316L 2.5-3.0 mm(ukuze kuvunyelwe ukugqwala). Esi sisisombululo segesi esiqhelekileyo esisetyenziswa kakhulu kuMbindi Mpuma nakuMntla Melika.
Umbuzo 6: Yintoni umahluko phakathi kwe-SA-106 Gr.B kunye ne-SA-210 Gr.C kwipayipi egqunyiweyo?
A: I-SA-210 Gr.C inamandla aphezulu okutsalwa (485 MPa vs 415 MPa) kwaye yenzelwe ngokukodwa iityhubhu zebhoyila. I-SA-106 Gr.B yenzelwe iipayipi zobushushu obuphezulu ngokubanzi. Kwizicelo zebhoyila, sebenzisa i-SA-210; kwiintambo zokudlulisa izixhobo zokuhluza, i-SA 106 iyamkeleka.
Umbuzo 7: Ndingafumana izatifikethi ze-EN 10204 Type 3.2 zezi pipe zigqunyiweyo?
A: Ewe. Sisebenza ne-TÜV, i-BV, i-DNV, i-SGS, kunye ne-ABS. Intlawulo eyongezelelweyo iyasebenza kwaye ixesha lokuqalisa lidlula iiveki ezi-1-2.
Umbuzo 8: Ngaba ikhonkco phakathi kwe-316L kunye ne-carbon steel lichaphazeleka lula kukonakala kwe-hydrogen?
A: Kwinkonzo ye-CO₂ emnandi (akukho cathodic protection over-voltage), hayi. Kwinkonzo ye-sour (H₂S), i-bond interface ayisiyondlela ikhethwayo yokuqhekeka ukuba yenziwe ngokufanelekileyo. Nangona kunjalo, i-316L ngokwayo inemida yobunzima. Kwi-H₂S ephezulu, sicebisa i-nickel alloy clad.
Umbuzo 9: Bungakanani ubukhulu be-cladding obuyi-316L obucebisayo?
A: I-1.5 mm yeyona nto incinci kwi-bond ethembekileyo kunye ne-corrosion allowance. Kwinkonzo ye-CO₂ enamandla enesantya esiphezulu sokuhamba kwamanzi, sicebisa i-2.5-3.0 mm.
Umbuzo 10: Ngaba ungabonelela ngezi pipe ezigqunyiweyo ngendlela egobileyo ye-U kwii-heat exchangers?
A: Ewe, kwipayipi efakwe i-seamless clad (OD ≤168 mm). Senza ukugoba okubandayo nge-mandrel, emva koko senza unyango lokunciphisa uxinzelelo kunye ne-100% NDT yendawo egobileyo. Nceda ucele ikowuteshini eyahlukileyo ye-U-bend.
Umbuzo 11: Ngaba nibonelela "ngesixhobo sokukhetha imibhobho egqunyiweyo" kwiintsimbi ezahlukeneyo ezingasemva?
A: Ewe. Sithumelele imiqathango yenkonzo yakho: ubushushu obuphezulu, ubushushu obuncinci, uxinzelelo, ukwakheka kolwelo (CO₂, H₂S, iikloridi, i-pH). Siza kucebisa intsimbi engasemva efanelekileyo + ubukhulu be-cladding + inqanaba lokuhlola.
Umbuzo 12: Ngaba kukho umahluko omkhulu weendleko phakathi kwe-SA-210+316L kunye netyhubhu eqinileyo ye-316L?
A: Ewe. Kwityhubhu yodonga eyi-63.5mm OD × 5mm, i-316L eqinileyo imalungaIxabiso liphindwe kabini nesiqingatha ukuya kwesithathukunepayipi egqunyiweyo ye-SA-210+316L (igqunyiweyo ye-2mm). Okukhona udonga lutyebile, kokukhona ukonga kukhulu.
Umbuzo 13: Kutheni ndingakhetha umbhobho ongenamthungo kunepayipi edityanisiweyo?
A: Umbhobho ongenanto ongenamthungo uyasusanawuphi na umthungo we-weld weld ojikelezayo, nto leyo eluncedo kwinkonzo yokujikeleza yobushushu obuphezulu, inkonzo ye-hydrogen, kwaye apho kukho umngcipheko wokuba i-chloride SCC ihlasele i-weld. Kwiinkqubo ezininzi zemibhobho yomgca (X65+316L), umbhobho ogqunywe nge-welded uthembekile kakhulu kwaye ungabizi kakhulu.
Umbuzo 14: Ngaba unganxiba zombini i-ID kunye ne-OD?
A: Singakwazi, kodwa loo nto ikhethekile. Ngokwesiqhelo umaleko omnye we-CRA kwi-ID wanele. Kwi-corrosion yangaphandle, sicebisa ipeyinti, ukugquma, okanye inkqubo eyahlukileyo yokugquma yangaphandle (umz., ukugquma nge-weld overlay). Nceda ubuze nge-dual-clad.
Umbuzo 15: Ndingayiodola njani indibaniselwano exutyiweyo yeentsimbi ezingasemva?
A: Nika into yomgca nganye: i-back steel grade, i-OD, i-core WT, ubukhulu be-cladding, ubude, ubungakanani. Siza kucaphula ngokudibanisa ngakunye. I-odolo encinci yovavanyo lobungakanani obunye iyamkeleka.
Umbuzo 16: Ngaba ukugalela i-pickling kuyimfuneko kwi-316L cladding?
A: Ewe. I-Pickling isusa ubushushu obuye benziwa ngexesha lokukhupha nokulungisa ubushushu, ibuyisela umaleko ongasebenziyo, kwaye iqinisekisa ukuba umphezulu ucocekile ukuze uhlolwe. Ukuhanjiswa kwethu okuqhelekileyo kuyacolwa kwaye akusebenzi. Ukuba awufuni ukucolwa (umz., xa kugqunywa ngoko nangoko), nceda ucacise.
Umbuzo 17: Ngaba ninika i-PMI (Ukuchonga Izinto Ezilungileyo) kwi-316L cladding?
A: Ewe. Singenza i-XRF kwiindawo ezahlukeneyo kwityhubhu nganye, size sifake ingxelo kwidosi yomgangatho. Kukho intlawulo encinci kwityhubhu nganye kwiiodolo ezinkulu.
Umbuzo 18: Ngaba umbhobho ogqunyiweyo ungabonelelwa ngeziphelo ezibethiweyo kunye ne-CRA botering?
A: Ewe. I-engile ye-bevel eqhelekileyo engama-30-35° kunye nokufika kwe-1.6 mm. I-CRA buttering (2-3 mm ye-Alloy 625 okanye i-316L filler ebusweni be-bevel) iyafumaneka ukuthintela ukunyibilika ngexesha lokuwelda kwentsimi. Oku kucetyiswa ngakumbi kwii-welds ze-girth ezisebenza ngoxinzelelo oluphezulu.
Umbuzo 19: Unamava anjani ngokubonelela ngemibhobho egqunyiweyo ye-316L ngokwemigangatho ye-EN yaseYurophu?
A: Sihlala sibonelela nge-EN 10216-2 (backing) nge-1.4404 (316L) cladding kwi-EN. Singabonelela ngesatifikethi se-EN 10204 3.2 esine-TÜV witness kunye nesibhengezo se-PED. Ii-odolo ezininzi ziye zaya eJamani, eNetherlands, eFransi nase-UK.
Umbuzo wama-20: Ngaba ungabelana ngeereferensi zombhobho omkhulu ogqunywe ngobubanzi obuyi-316L (API 5L X65+316L)?
A: Ewe, sinikezele ngepayipi ye-X65+316L egqunyiweyo (OD 610mm, i-cladding 2.5mm) kwiprojekthi yokujova i-CO₂ yaseMbindi Mpuma (ipayipi ye-200 km). Iireferensi ziyafumaneka kwi-NDA.
9. Uncedo loku-odola – Indlela yokuchaza umbhobho we-316L Clad
Ukuqinisekisa ukuba ufumana indibaniselwano echanekileyo, nceda unikeze oku kulandelayo kwinto nganye yomgca:
1. Ibanga lentsimbi exhaswayo(khetha kwi-SA-210 Gr.C, SA-106 Gr.B, API 5L X52/60/65, A333 Gr.6, A335 P11/P22)
2. Ububanzi obungaphandle (OD)kwayeubukhulu bodonga oluphambili
3. Ubukhulu be-cladding ye-316L(ngesiqhelo yi-1.5-3.5 mm)
4. Ubude obunye(m) kunye nobude obupheleleyo (okanye ubungakanani)
5. Umgangatho osebenzayo(i-ASME, i-API, i-EN, okanye iinkcukacha zeprojekthi)
6. Isiqinisekiso esifunekayo(EN 10204 Uhlobo 3.1 olusemgangathweni; Uhlobo 3.2 olungenamkhethe)
7. Uvavanyo olongezelelweyo(I-Charpy, i-intergranular corrosion, i-NACE, i-creep, njl.njl.)
8. Ukugqiba ukugqiba(ecacileyo, egobileyo, egobileyo+eqhotsiweyo)
9. Ixesha lokuhanjiswa(Izibuko lase-FOB China, izibuko lendawo oya kuyo i-CIF, imithwalo yomoya)
10. I-Womic Steel iza kuphendula ngokuthi:
● Iphepha ledatha yobugcisa yomxube othile
● Ixabiso kunye nexesha lokuhlawula
● Isampulu yesatifikethi somatshini wokugaya (esivela kwi-odolo yangaphambili efanayo)
● Isicwangciso somgangatho esicetywayo kunye nobubanzi bokuhlolwa
Amandla ethu:Asigcini nje ngokwenza izinto kodwa sikwacebisakwi-backing + cladding indibaniselwano engabizi kakhulu nethembekileyo kwiimeko zakho zenkonzo. Abathengi abaninzi bacacisa ngokugqithisileyo ngokucinga ukuba i-solid alloy iyafuneka - sibanceda bonge i-40-60% ngepayipi evaliweyo.
10. Qhagamshelana neWomic Steel – Ingcali yakho yeMibhobho ye-316L Lined Clad
Ukuba ujonge iUmbhobho ogqunywe ngemisonto engama-316LUkuba unayo nayiphi na i-carbon okanye i-alloy steel backing eqhelekileyo, nxibelelana nathi ukuze ufumane ingcebiso yobugcisa yasimahla kunye nekowuteshini engenazibophelelo.
Iwebhusayithi: www.womicsteel.com
I-imeyile: sales@womicsteel.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
UJack: +86 18390957568
I-Womic Steel – Izisombululo zemibhobho ezifakwe i-316L ezenzelwe inkonzo ye-CO₂, ibhoyila, isixhobo sokutshintsha ubushushu, ubushushu obuphantsi, kunye nokusetyenziswa kobushushu obuphezulu.
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