Imveliso:I-SA210 Grade A-1 (ASTM A210/ASME SA210) ityhubhu ene-rifled yentsimbi ephakathi yekhabhoni engenamthungo – eneentambo ezijikelezayo ngaphakathi kumphezulu wangaphakathi. Yenziwe ngokutsala okubandayo phezu kweplagi ene-rifled eyenzelwe ngokukodwa. Yenzelwe iindonga zamanzi zebhoyila ezinoxinzelelo oluphezulu (iiyunithi ezibaluleke kakhulu nezibaluleke kakhulu ezingaphezulu kwama-300,000 KW). I-rifle yangaphakathi ibangela amandla e-centrifugal ahlula amanzi kumphunga, inyanzela ulwelo ukuya eludongeni lwetyhubhu ukugcina ukubila kwe-nucleate kunye nokuthintela ukwakheka kwefilimu yomphunga.
Amagama angundoqo:Ityhubhu enemibhobho ye-SA210, ityhubhu engenamthungo ye-SA210 yeBanga le-A-1, ityhubhu yebhoyila enemibhobho emininzi, ityhubhu enemibhobho yangaphakathi, ityhubhu enemibhobho ebandayo, ityhubhu yodonga lwamanzi, ityhubhu enemibhobho ejikelezayo, ityhubhu yebhoyila ye-ASME SA210, ityhubhu engenamthungo ye-SA210 yeBanga le-A-1, ityhubhu yebhoyila esebenza kakuhle, udonga lwamanzi lwebhoyila olubalulekileyo, umenzi wetyhubhu enemibhobho, umthengisi wetyhubhu enemibhobho eTshayina
Inqaku malunga nesigama:“Ityhubhu enemibhobho” kunye “netyhubhu enemibhobho yangaphakathi” zibhekisa kwimveliso efanayo. Omabini la magama achaza iityhubhu ezingenamthungo ezineembambo ezijikelezayo ezenziwe kumphezulu wangaphakathi ngokutsala okubandayo phezu kweplagi enemiqolo. iinkokeli ezininziuphawu lubonisa iimbambo ezininzi ezijikelezayo ezihambelanayo (ngesiqhelo ziqala ngo-4 okanye ngo-6) ezihamba kubude betyhubhu.
1. Izinto ezisisiseko: Intsimbi ye-SA210 Grade A-1 engenamthungo yeKhabhoni ephakathi
I-ASTM A210/ASME SA210 yinkcazo eqhelekileyo yeebhoyila zentsimbi ephakathi enekhabhoni engenanto kunye neetyhubhu ze-superheater. Le nkcazo igubungela iityhubhu zentsimbi ezinobukhulu obuncinci bodonga lweeflue zebhoyila, kubandakanya iziphelo ezikhuselekileyo, iityhubhu ze-arch, iityhubhu ezihlalayo, kunye neetyhubhu ze-superheater. I-SA210 Grade A-1 yeyona nqanaba isetyenziswa kakhulu kwinkonzo yeetyhubhu zebhoyila ngokubanzi, inikezela ngokulinganisela okugqwesileyo kwamandla, ukuguquguquka, kunye neendleko.
Kwinkonzo yoxinzelelo oluphezulu kunye nobushushu obuphezulu, i-SA210 Grade C (umxholo ophezulu wekhabhoni, amandla aphezulu) nayo iyafumaneka. Nangona kunjalo, iGrade A-1 isengumgangatho weshishini wokusetyenziswa kodonga lwamanzi olufuna ukwakheka okuhle ukuze lugobe kubanda kwaye lusebenze ngokuthembekileyo kumaqondo obushushu esinyithi ukuya kuthi ga kwi-425°C (800°F).
1.1 Ulwakhiwo lweeKhemikhali (ASTM A210 Grade A-1)
| I-elementi | Imfuneko (ubuninzi/umzuzu) | Eqhelekileyo (Intsimbi Yabasetyhini) |
| Ikhabhoni (C) | ≤0.27% | 0.22-0.25% |
| IManganese (Mn) | ≤0.93% | 0.45-0.60% |
| I-Silicon (Si) | ≥0.10% | 0.18-0.33% |
| I-Phosphorus (P) | ≤0.035% | ≤0.015% |
| I-Sulfur (S) | ≤0.035% | ≤0.010% |
Umthombo wetheyibhile: Inkcazo ye-ASTM A210 / ASME SA210
1.2 Iipropati zoomatshini
| Ipropati | Imfuneko yeBanga A-1 | Eqhelekileyo (Intsimbi Yabasetyhini) |
| Amandla Okuvelisa (umzuzu) | 255 MPa (37,000 psi) | 280-320 MPa |
| Amandla okuThamba (umzuzu) | I-415 MPa (60,000 psi) | 450-520 MPa |
| Ukwandiswa (umzuzu) | 30% (i-longitudinal) | 32-36% |
| Ubunzima (ubuninzi) | 79 HRB / 143 HB | 70-75 HRB |
*Ibanga C (0.24-0.31% C, YS≥275 MPa, TS≥485 MPa) linika amandla aphezulu angama-5-10% kodwa amandla aphantsi; licetyiswa kwiityhubhu ze-superheater kunye nenkonzo yobushushu obuphezulu.*
1.3 Iimpawu Zomzimba
| Ipropati | Ixabiso |
| Uxinano | 7.85 g/cm³ |
| Ubushushu obuphezulu benkonzo | 425°C (800°F) |
| Imodulus yokuqina | 200 GPa |
| Ukuqhuba kobushushu (100°C) | ~48 W/m·K |
| I-coefficient yokwandisa | 12.2 μm/m·K (20-200°C) |
1.4 Imigangatho Esebenzayo
| Umgangatho | Inkcazo |
| I-ASTM A210 / A210M | Ingcaciso Esemgangathweni yeBoiler yentsimbi yeKhabhoni engenamthungo kunye neeTubhu zeSuperheater |
| I-ASME SA210 | Uhlobo lwe-ASME (iimfuno ezifanayo) |
| GB/T 20409-2018 | Umgangatho wesizwe waseTshayina weetyhubhu ezineerifle (iityhubhu ezingenamthungo zebhoyila enoxinzelelo oluphezulu) |
| EN 10216-2 (inokuthelekiseka) | Umgangatho waseYurophu weetyhubhu zentsimbi ezingenamthungo ngeenjongo zoxinzelelo |
2. Ityhubhu eneZiqhoboshi ezininzi: Iiparameter zeJiyometri
Iityhubhu ze-multi-lead rifled (MLR) zahlulwe zibe ziindlela ezimbini ezisemgangathweni, nganye yenzelwe iimeko ezithile zokusebenza:
| Ipharamitha | Uhlobo A (oluqhelekileyo) | Uhlobo B / Olulungisiweyo |
| I-engile yeHelix | 30° | 30°+ (ukuya kuthi ga kwi-40°+) |
| Ukuphuculwa kokudluliselwa kobushushu | I-30% ngaphezulu kwetyhubhu egudileyo | 50%+ ngaphezulu kwetyhubhu egudileyo (eqokelelweyo) |
| Inani leentambo (ukuqala kwembambo) | 4 okanye 6 | 4 okanye 6 |
| Ijiyometri yembambo | Iprofayili engunxande | Ilungiselelwe (ijikeleziswe okanye inqunyulwe) |
Iityhubhu eziqhelekileyo ezine-multi-lead rifled zahlulwe zangamaqela amabini (Uhlobo A kunye noHlobo B) ezine-engile ye-helix engama-30 degrees. Iityhubhu ezine-multi-lead rifled ezilungiselelweyo zinokuba ne-engile ye-helix ukuya kuthi ga kwi-40°+, zibonelela ngophuculo olongezelelweyo lwe-20% ekusebenzeni kakuhle kobushushu kuneetyhubhu eziqhelekileyo ezine-rifled.
Idatha yophando:ityhubhu yerifle eneimbambo ezi-4, ububanzi bangaphandle buyi-25mm, ukuphakama kwembambo yi-0.68mm, ububanzi bembambo buyi-9.25mm, kunye ne-engile ye-helix engama-60°, iqinisekisiwe ngovavanyo. Izifundo zamanani ziqinisekisa ukuba uyilo lweetyhubhu ezine-rifled olulungisiweyo oluneembambo eziziingxande (ukuphakama buyi-0.775mm, ii-engile ze-helix ezingama-30° kunye nama-58°) zonyusa ukuhamba kwe-helical yesibini kufutshane nodonga lwetyhubhu, nto leyo ephucula kakhulu ukusebenza kakuhle kokudluliselwa kobushushu.
Ukwanda kwendawo yomphezulu:Ummandla wangaphakathi womphezulu ngeyunithi nganye yobude beetyhubhu ezinamacala angaphakathi umalunga ne-1.5 ukuya kwi-2.4 yemibhobho egudileyo enobubanzi obufanayo bangaphandle. Inkqubo yokuzoba ebandayo yenza udonga lwangaphakathi lube yisakhiwo esinamacala ajikelezayo esinobukhulu obuchanekileyo bejometri, nto leyo eyandisa kakhulu indawo yokudlulisa ubushushu esebenzayo yetyhubhu xa ithelekiswa neetyhubhu ezingenanto.
2.1 Iinkcukacha Eziqhelekileyo (Ezivela Kwimveliso Yokwenyani)
| OD × Ubunzima (mm) | Ukusetyenziswa Okuqhelekileyo |
| Φ28.6 × 6.2 | Iiphaneli zodonga zamanzi, uxinzelelo oluphakathi |
| Φ31.8 × 5.5 | Iiphaneli zodonga zamanzi |
| Φ38.1 × 7.5 | Ityhubhu yodonga lwamanzi eqhelekileyo |
| Φ63.5 × 7.5 | Udonga olukhulu lwamanzi ebhoyila |
| Φ66.7 × 8 | Iibhoyila ezibaluleke kakhulu/ezibaluleke kakhulu |
*Iinkcukacha eziqhelekileyo zeetyhubhu ze-SA210 ze-Grade A-1 kunye ne-Grade C ezine-rifled rifled*
2.2 Ukunyamezelana Kwemveliso (Ukutsalwa Ngobandayo)
| Ipharamitha | Ukunyamezelana |
| Ububanzi obungaphandle (OD) | ±0.10 mm kwi-OD <25.4 mm; ±0.15 mm kwi-OD 25.4–38.1 mm |
| Ubukhulu bodonga | -0% / +20% xa kutsalwa kubanda |
| Ubude | +20/-0 mm |
| Ukuthe tye | ≤1.5 mm ngemitha nganye |
Umthombo: Ukunyamezelana kweetyhubhu ezitsalwa ngokubandayo ze-ASTM A210
3. Inkqubo yoMveliso – Ukuzoba okubandayo ngePlagi eneRifled
I-Womic Steel ivelisa iityhubhu zebhoyila ezingenamthungo ze-SA210 Grade A-1 ze-Grade A-1 zisebenzisa inkqubo yokuzoba ebandayo ephuculiweyo eneplagi ejikelezayo enemibhobho. Inkqubo iqala nge-feedstock yetyhubhu engenamthungo eshushu, esebenza njengesixhobo sokuqala kwimisebenzi elandelayo yokuzoba ebandayo. Emva kokuba ukuzoba kokuqala okubandayo kudlule ngeplagi egudileyo ukuze kufezekiswe ubungakanani oburhabaxa, umsebenzi wokugqibela wokuzoba usebenzisa iplagi enemibhobho emininzi.
Iplagi eyilwe ngokukodwa (efakwe imiqolo ngaphandle kwipateni yehelical) ifakwa kwityhubhu yentsimbi ize incamathiselwe kwi-mandrel ejikelezayo. Ityhubhu itsalwa nge-die yokunciphisa, kwaye njengoko ityhubhu itsalwa phambili, iplagi iyajikeleza, yenze iimbambo ezininzi zehelical eziqhubekayo kumphezulu wangaphakathi. Umzimba weplagi unemiqolo yangaphandle ebekwe ngokulinganayo malunga ne-axis yayo ephakathi, kunye nomhlaba wangaphandle otshintshana phakathi kwemiqolo. Xa ityhubhu itsalwa phezu kwale plagi inemiqolo, imihlaba ichukumisa ipateni ejikelezayo elawulwayo—ngokuqhelekileyo iimbambo ezi-4 okanye ezi-6 ezibekwe ngokulinganayo—kudonga lwangaphakathi lwetyhubhu, ngelixa imiqolo ivumela isinyithi esisusiweyo ukuba sihambe.
Ukulinganisa okuphucukileyo kwamanani (iFinite Element Method, i-FEM) kusetyenziswa ukuphucula i-die geometry ngaphambi kokuba imveliso iqhubeke, ukunciphisa iziphene zodonga lweetyhubhu kunye neentsilelo. Iingenelo eziphambili zale nkqubo ziquka ukwakheka kwembambo ezizinzileyo, imveliso ephezulu, ubomi besixhobo obude, i-rib geometry engaguqukiyo, kunye nokugqitywa komphezulu wangaphakathi ogudileyo. Ubukhulu bokugqibela obufezekisiweyo kukutsalwa kubanda ukuya kwi-OD kunye ne-WT echanekileyo, kulungiswe ngokupheleleyo ubushushu (kuqhelekile), kwaye kuhlolwe i-100% ye-NDT.
4. Indlela Yokuphucula Ukudluliselwa Kobushushu – Kutheni Iityhubhu Ezinemipu Zisebenza
Kwiityhubhu zebhoyila ezigudileyo, amaqamza omphunga ayahlangana kumphezulu ongaphakathi, enze ifilimu yomphunga eqhubekayo. Le filimu yomphunga ayisebenzi kakuhle ekufudumaleni, nto leyo ekhokelela ekunciphiseni ngokukhawuleza ukusebenza kakuhle kokudluliselwa kobushushu kwaye inokubangela ukugqithisa kakhulu kwetyhubhu kunye nokungaphumeleli (ukusuka ekubileni kwe-nucleate, okanye i-DNB).
Iityhubhu ezineerifle zisombulula le ngxaki ngokufaka amandla e-centrifugal kumsinga, zityhala amanzi angamanzi ukuya eludongeni lwetyhubhu ngelixa umphunga usiya embindini. Le ndlela inika izibonelelo ezine ezibalulekileyo:
Ukucinywa kwe-DNB— umaleko wamanzi eludongeni uqinisekisa ukubila okuqhubekayo kwe-nucleate nokuba kushushu kakhulu.
Ukomisa okulibazisekileyo— kwiimeko ezingabalulekanga kangako, ukuqhumisa ngemipu kwandisa ukulibaziseka kokumisa, kukhusela ukuthembeka kwemibhobho.
Ubushushu obuphezulu obuphezulu— ukubila kwe-nucleate kugcinwa kubushushu obuphezulu kakhulu.
Ukuphuculwa kokudluliselwa kobushushu— nokuba isantya sobunzima siphantsi, ityhubhu enemibhobho iphucula kakhulu ukudluliselwa kobushushu ngelixa inciphisa ukuhamba kobunzima obufunekayo ukuze kuphole ngokwaneleyo.
Izifundo ze-CFD zamanani zibonisa ukuba ukwenza ngcono iiparameter zejometri—kuquka inani lokuqalisa kwezibhamu, ukuphakama kwembambo, kunye nobude bepitch yezibhamu—kunokunyusa ukudluliselwa kobushushu ngaphaya koyilo olusisiseko lwezibhamu. Ukuhamba kwe-swirl okuveliswa ziimbambo ze-helical kudala ifilimu encinci yolwelo eludongeni, okwandisa kakhulu i-coefficient yokudluliselwa kobushushu xa kuthelekiswa neetyhubhu ezithambileyo.
5. Ulawulo loMgangatho kunye noVavanyo
Yonke i-SA210 A-1 rifled tube batch ivavanywa ngokuqatha ngokwemigaqo emiselweyo:
| Uvavanyo | Indlela | Ububanzi |
| Uhlalutyo lweekhemikhali | I-spectrometer ye-OES | Ngobushushu ngabunye (ibhetshi nganye) |
| Uvavanyo lokuxinana | I-ASTM A370 | Ngobushushu ngabunye (ngebhetshi nganye) |
| Uvavanyo lokuqina | I-HRB / HB | Ngebhetshi nganye |
| Uvavanyo lwe-hydrostatic | Uxinzelelo loyilo oluphezulu ≥1.5 × | Ityhubhu nganye |
| Umbane we-Eddy / UT (NDT) | Ngokuzenzekelayo ku-intanethi okanye ngaphandle komgca | Uhlolo lwe-100% |
| Ukuvutha kunye nokuthomalalisa | I-ASTM A450 | Ngebhetshi nganye (ukuqinisekisa ukuguquguquka) |
| Ukuchonga Izinto Ezilungileyo (i-PMI) | I-XRF (ukhetho) | Ityhubhu nganye okanye njengoko kufuneka |
| Uvavanyo lobukhulu | I-laser / ii-calipers / i-optical comparator | 100% (OD, WT, i-rib geometry, i-engile ye-helix) |
Umlinganiselo wejiyometri yembambo:Inani leembambo, ukuphakama kwembambo, ububanzi bembambo, ubude bepitch, kunye ne-engile ye-helix ziqinisekiswa kusetyenziswa ii-precision optical comparators okanye ii-profilometers. Ezi parameters kufuneka zihambelane kubude betyhubhu epheleleyo ukuqinisekisa ukusebenza okufanayo kokudluliselwa kobushushu.
Izatifikethi:EN 10204 Uhlobo 3.1 (oluqhelekileyo), Uhlobo 3.2 (kunye nengqina lesithathu). Ukuhlolwa kwesithathu yi-SGS, BV, DNV, TÜV kuyafumaneka.
6. Izicelo – Apho i-SA210 A-1 Rifled Tubes Excel
Iityhubhu ezingenamthungo ezine-multi-lead rifled zisetyenziswa kakhulu kwiindonga zamanzi zeebhoyila ezinkulu ze-subcritical kunye ne-ultra-supercritical power plant boilers (ngesiqhelo iiyunithi ezilinganiswa kwi-300,000 KW nangaphezulu). I-China yodwa isebenzisa malunga neetoni ezingama-25,000–30,000 zeetyhubhu ezine-rifled minyaka le kule njongo. Iindidi zezinto eziqhelekileyo ziquka i-SA210 Grade A-1, i-SA210 Grade C, kunye ne-SA213 T2.
Izicelo ezithile ziquka:
l Iiphaneli zodonga zamanzikwiibhoyila ezibaluleke kakhulu
l Iiphaneli zodonga zamanzi ezibaluleke kakhulu/ezibaluleke kakhulungaphezulu kwama-300,000 KW
l Imiphezulu yokufudumeza ephumayo
l Iindawo ezisezantsi zesithando somlilongobushushu obuphezulu kakhulu
l Amashishini eekhemikhali nombanekufuna ukutshintshiselana kobushushu obuphezulu
Umthombo: Iinkcukacha zobugcisa zetyhubhu yentsimbi engenamthungo ene-multi-lead rifled
7. Uthelekiso lweeBanga – Ixesha lokusebenzisa i-SA210 A-1 xa kuthelekiswa ne-SA210 C xa kuthelekiswa nezinye izixhobo
| Ibanga / Izinto ezisetyenziswayo | Umxholo weCarbon | Unikeze Amandla | Iimpawu eziphambili | Ukusetyenziswa Okucetyiswayo |
| I-SA210 A-1 | ≤0.27% | ubuncinci be-255 MPa | Ukwakheka okungcono kakhulu kokugoba okubandayo; amandla aphakathi; engabizi kakhulu | Iindonga zamanzi zebhoyila ngokubanzi, iindawo eziphantsi kobushushu |
| SA210 C | ≤0.35% | ubuncinci be-275 MPa | Amandla aphezulu; isivuno esiphezulu yi-5-10% kune-A-1; iindonga ezincinci zinokwenzeka | Iityhubhu zeSuperheater; iindawo zobushushu obuphezulu; iindonga zamanzi ezinoxinzelelo oluphezulu |
| SA213 T2 | 0.10-0.20% | ubuncinci be-205 MPa | I-Cr-Mo (0.5%Cr, 0.5%Mo); ukuphuculwa kokumelana nokuqhekeka kobushushu obuphezulu | Iityhubhu zebhoyila ezinobushushu obuphezulu; iindawo zokucoca |
| SA213 T12 | 0.05-0.15% | ubuncinci be-220 MPa | I-1%Cr-0.5%Mo alloy; amandla agqwesileyo okuhambahamba kumaqondo obushushu aphezulu | Iindonga zebhoyila ezibaluleke kakhulu; iintloko zobushushu obuphezulu |
| SA209 T1a | 0.10-0.20% | ubuncinci be-205 MPa | I-Cr-Mo (0.5%Cr, 0.5%Mo); ifana ne-T2 | Iityhubhu zodonga olukhanyayo; usetyenziso loxinzelelo oluphezulu |
Ukukhetha umgangatho ochanekileyo kubalulekile — ukusebenzisa umgangatho ophantsi we-alloy (T2/T12) ngokungeyomfuneko kunyusa iindleko zezinto, ngelixa ukusebenzisa umgangatho we-carbon steel (A-1) kwiindawo ezinobushushu obuphezulu kakhulu kunokubangela ukungasebenzi kakuhle kweetyhubhu ngenxa yomonakalo obangelwa kukuqhekeka.*
8. Imibuzo Ebuzwa Rhoqo (Imibuzo Ebuzwa Rhoqo)
Q1: Iyintoni inzuzo yokudlulisa ubushushu ngaphezu kweetyhubhu ezigudileyo?
A: Iityhubhu eziqhelekileyo ezine-multi-lead rifled (i-angle ye-helix engama-30 degrees) ziphucula ukusebenza kakuhle kobushushu nge-30% xa kuthelekiswa neetyhubhu ezigudileyo. Iityhubhu ezine-rifled ezilungiselelweyo (i-angle ye-helix engama-40 degrees+) zinokubonelela ngophuculo olongezelelekileyo lwe-20%, ukuze kubekho inzuzo ehlanganisiweyo yokusebenza ye-50% nangaphezulu.
Umbuzo 2: Zeziphi izinto ezinokusetyenziselwa iityhubhu ezineerifle?
A: Izinto eziqhelekileyo ziquka i-ASME SA210 Grade A-1, i-SA210 Grade C, kunye ne-SA213 T2. Nangona i-SA213 T2 (i-Cr-Mo alloy) nayo inokusetyenziswa njenge-rifle, ibiza kakhulu kwaye idla ngokugcinelwa iindawo zobushushu obuphezulu. I-Womic Steel inokwenza neetyhubhu ezine-rifle kwi-SA213 T12, SA213 T22, kunye nezinye iiklasi ezenziwe ngokwezifiso ngokweemfuno zomthengi.
Umbuzo 3: Uqinisekisa njani i-inner rib geometry?
A: Inani leembambo, ukuphakama kwembambo, ububanzi bembambo, ubude bepitch, kunye ne-engile ye-helix ziqinisekiswa kusetyenziswa ii-precision optical comparators okanye ii-profilometers. Iingxelo ezipheleleyo ziyafumaneka kwibhetshi nganye.
Umbuzo 4: Ngaba iityhubhu ezineerifle ziyafumaneka ngobukhulu obuqhelekileyo?
A: Ewe. Singavelisa iityhubhu ezineerifle ngokweemfuno zabathengi, kubandakanya i-OD eyenziwe ngokwezifiso, ubukhulu bodonga, inani leembambo zokuqala (4 okanye 6), i-engile ye-helix, kunye ne-rib geometry. Nceda unikezele ngeemfuno zakho zesisombululo esenziwe ngokwezifiso.
Q5: Zeziphi izinto zokugqiba umphezulu ezikhoyo?
A: Ukugqitywa okuqhelekileyo kuyaxutywa kwaye kufakwe i-pickle (AP) ukuze kucoceke umphezulu wangaphandle nowangaphakathi. Ukugqitywa okukhanyayo (BA) okanye okupholisiweyo kuyafumaneka xa kuceliwe.
Q6: Zeziphi iziqinisekiso ozibonelelayo?
A: Isatifikethi sovavanyo lweMill ngokwe-EN 10204 Uhlobo 3.1 (oluqhelekileyo), Uhlobo 3.2 olunobungqina bomntu wesithathu (SGS, BV, DNV, TÜV) luyafumaneka. Ukulandeleka ngokupheleleyo ukusuka kwinani lobushushu ukuya kwityhubhu nganye egqityiweyo.
Umbuzo 7: Ngaba ninikezela ngovavanyo lomntu wesithathu?
A: Ewe. Siququzelela uhlolo lwe-SGS, BV, DNV, TÜV, ABS, LR. Sibone i-PMI, ukuhlolwa kobukhulu, kunye novavanyo loomatshini olufumaneka xa luceliwe.
Umbuzo 8: Lingakanani ixesha eliqhelekileyo lokuqalisa iityhubhu ezineerifle ze-SA210 A-1?
A: Kwiinkcukacha ezisemgangathweni (Φ28.6×6.2, Φ38.1×7.5, njl.njl.), ixesha lokunikezelwa kwempahla limalunga neentsuku ezingama-30–45 ukusuka ekuqinisekisweni kweodolo. Iinkcukacha ezenziwe ngokwezifiso zifuna iintsuku ezingama-45–60.
Umbuzo 9: Yeyiphi i-engile ephezulu ye-helix enokufikelelwa kwiityhubhu ezinee-rifle ze-SA210 A-1?
A: Ii-engile ze-helix eziqhelekileyo ziqala kwi-30° ukuya kwi-60°, kuxhomekeke kwisicelo esithile kunye nemida yejometri. Uyilo olulungiselelweyo olunee-engile ze-helix ukuya kwi-60° luye lwaqinisekiswa ngokwemvavanyo kwaye lufanelekile kwiindonga zamanzi zebhoyila ezibalulekileyo ezisebenza kakuhle.
Umbuzo 10: Ngaba ungabonelela ngeetyhubhu ezineerifle kwiindlela ezigobileyo ze-U?
A: Ewe, sinikezela ngokugoba okubandayo kweetyhubhu ezinee-mandrels, kulandele unyango olupheleleyo lobushushu kunye ne-100% NDT yendawo yokugoba. Nceda ucele ikowuteshini eyahlukileyo ye-U bend.
Umbuzo 11: Ngaba ungabonelela ngeetyhubhu ezineerifle ezinesatifikethi se-NACE MR0175?
A: Intsimbi yekhabhoni ye-SA210 Grade A-1 ayiqhelekanga ukumiselwa inkonzo emuncu (H₂S). Kwizicelo ezifuna zombini ukuxhathisa izibhamu kunye nenkonzo emuncu, sicebisa amanqanaba e-alloy (umz., i-SA213 T2) kunye neziqinisekiso ze-NACE ozikhethelayo. Nceda uqhagamshelane neqela lethu lobunjineli malunga neemfuno ezithile.
Umbuzo 12: Bungakanani ubukhulu bodonga obuncinci bokuveliswa kweetyhubhu ezineerifle?
A: Ubukhulu bodonga obuncinci obunokuveliswa buxhomekeke kububanzi bangaphandle kunye nejiyometri yembambo ethile. Kwimveliso eqhelekileyo, ubukhulu bodonga obuyi-≥4.0mm buyacetyiswa xa kusenziwa izibhamu ezithembekileyo. Nceda unxibelelane nathi ukuze uxoxe ngeemfuno zakho zobukhulu obuthile.
Umbuzo 13: Ngaba inkqubo yokutsala ebandayo iyayichaphazela na imilo yoomatshini bombhobho?
A: Inkqubo yokutsala okubandayo iyasebenza-iyayiqinisa loo nto, inyusa amandla. Nangona kunjalo, ukupholisa isisombululo sokugqibela (ukumisa) kubuyisela ukuguquguquka kwaye kuqinisekisa ukuba iipropati zoomatshini ziyahlangabezana neemfuno ze-ASTM A210 Grade A-1. Ukubuyisela ubushushu kwenziwa emva kokuba ukutsala kokugqibela kudlulile.
Umbuzo 14: Ngaba ungavelisa iityhubhu ezineerifle ezineembambo ezi-6-lead (ezi-6-start)?
A: Ewe. Iityhubhu ezine-lead ezininzi ziyafumaneka nge-4-start okanye 6-start configurations. Inani lee-leads likhethwa ngokusekelwe ekusebenzeni kokudlulisa ubushushu okufunekayo kunye nobubanzi beetyhubhu. Nceda ucacise imfuno yakho ngexesha lophando.
Umbuzo 15: Ngaba iityhubhu ezineerifle ze-SA210 zeBakala A-1 zinokubonelelwa xa u-U egoba?
A: Ewe, sinikezela ngokugoba okubandayo kweetyhubhu ezinee-mandrels zangaphakathi ukukhusela i-rib geometry. Emva kokugoba, unyango lokunciphisa uxinzelelo olupheleleyo kunye ne-100% NDT yeradiyo yokugoba iyenziwa. Ukufumaneka kwe-U-bend kuxhomekeke kubukhulu bokugqibela; nceda unxibelelane nathi ukuze ufumane ukuba kunokwenzeka.
Umbuzo 16: Ngaba iityhubhu ze-SA210 Grade A-1 ezineerifle ziyafumaneka kwi-bright annealed (BA) finish?
A: Ewe, singabonelela ngeetyhubhu ezineerifle ezinesiphelo esikhanyayo se-annealed (BA). Oku kufuna umoya okhuselayo ngexesha lonyango lokugqibela lobushushu (umz., i-hydrogen okanye i-ammonia edityanisiweyo) ukuthintela i-oxidation. Isiphelo se-BA sifanelekile kwizicelo zenkonzo ezicocekileyo nezicocekileyo, nangona sibiza kakhulu kunesiphelo esiqhelekileyo se-annealed and pickled (AP).
Qhagamshelana neWomic Steel
Ukuba unemibuzo, inkxaso yobugcisa, okanye ucela ikowuteshini yeemfuno zakho ezithile ze-SA210 Grade A-1 multi-lead rifled seamless tube, nceda unxibelelane nathi ngokuthe ngqo.
Iwebhusayithi: www.womicstainless.com
Eiposi: info@womicstainless.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
UJack: +86 18390957568
I-Womic Steel – Umenzi wakho okhethekileyo kunye neqabane elithembekileyo leetyhubhu zebhoyila ezingenamthungo ze-SA210 Grade A-1 ezine-rifled rifled, iityhubhu ezitsalwa ngaphakathi ezibandayo ukuze zisetyenziswe eludongeni lwamanzi olusebenza kakuhle kakhulu nolune-supercritical.
Ixesha leposi: Meyi-28-2026