Intengo Engcono Kakhulu Yocingo Lwepayipi Lensimbi Yase-China kanye Nolayini Wokukhiqiza Amapayipi Okungenamthungo
ngenxa yosizo oluhle kakhulu, izinhlobonhlobo zemikhiqizo nezisombululo zekhwalithi ephezulu, izindleko ezinolaka kanye nokulethwa okuphumelelayo, sijabulela ukuthandwa okuhle kakhulu phakathi kwamakhasimende ethu. Siyibhizinisi elinomdlandla elinemakethe ebanzi Yenani Elingcono Kakhulu le-China Steel Pipe Fence kanye Nolayini Wokukhiqiza Amapayipi Okungenamthungo, Ibhizinisi lethu ligcina amabhizinisi amancane avikelekile kuhlanganiswe iqiniso nokwethembeka ukuze silondoloze ubudlelwano besikhathi eside nabathengi bethu.
ngenxa yosizo oluhle kakhulu, izinhlobonhlobo zemikhiqizo nezisombululo zekhwalithi ephezulu, izindleko ezinolaka kanye nokulethwa okuphumelelayo, sijabulela ukuthandwa okuhle kakhulu phakathi kwamakhasimende ethu. Siyibhizinisi elinomdlandla elinemakethe ebanzi yeChina Seamless Steel Tube, I-Steel Tube Price, Besilokhu sifuna amathuba okuhlangana nabo bonke abangani abavela ekhaya nabaphesheya ukuze sibambisane ngokuwina-win. Sithemba ngobuqotho ukuba nokubambisana kwesikhathi eside nani nonke ezisekelweni zokuzuzisana kanye nentuthuko efanayo.
Uhlolojikelele
Isicelo
Ipayipi lisetshenziselwa ukuthutha uwoyela, isitimu namanzi adonswa phansi kuya embonini kawoyela negesi ngokusebenzisa ipayipi.
Ibanga Eliyinhloko
Ibanga lensimbi yepayipi ye-API 5L: Gr.B X42 X52 X60 X65 X70
Ingxenye Yekhemikhali
| Ibanga Lensimbi (Igama Lensimbi) | Ingxenyana Enkulu, Ngokusekelwe Ekushiseni Nokuhlaziywa Komkhiqizoa,g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| ubuningi b | ubuningi b | imiz | ubuningi | ubuningi | ubuningi | ubuningi | ubuningi | |
| Ipayipi Elingenamthungo | ||||||||
| I-L175 noma i-A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| I-L175P noma i-A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 noma A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 noma B | 0.28 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| I-L290 noma i-X42 | 0.28 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| I-L320 noma i-X46 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L360 noma i-X52 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L390 noma i-X56 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L415 noma i-X60 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| I-L450 noma i-X65 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| I-L485 noma i-X70 | 0.28 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| Ipayipi elishiselwe | ||||||||
| I-L175 noma i-A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| I-L175P noma i-A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 noma A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 noma B | 0.26 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| I-L290 noma i-X42 | 0.26 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| I-L320 noma i-X46 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L360 noma i-X52 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L390 noma i-X56 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| I-L415 noma i-X60 | 0.26 e | 1.40 e | - | 0.030 | 0.030 | f | f | f |
| I-L450 noma i-X65 | 0.26 e | 1.45 e | - | 0.030 | 0.030 | f | f | f |
| I-L485 noma i-X70 | 0.26 e | 1.65 e | - | 0.030 | 0.030 | f | f | f |
| a Cu ≤ 0.50 %; Ni ≤ 0.50 %; Cr ≤ 0.50 % kanye ne-Mo ≤ 0.15 %. b Ekunciphiseni ngakunye ngo-0.01 % ngaphansi kwesilinganiso esiphezulu esibekiwe sekhabhoni, ukunyuka ngo-0.05 % ngaphezu kwesilinganiso esiphezulu esishiwo ku-Mn kuvumelekile, kuze kufike ku-1.65 % kumabanga ≥ L245 noma B, kodwa ≤ L360 noma X52; kuze kufike ku-1.75 % kumabanga > L360 noma X52, kodwa <L485 noma X70; futhi kuze kufike ku-2.00 % weBanga L485 noma X70. c Ngaphandle uma kuvunyelwene ngenye indlela, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Ngaphandle uma kuvunyelwene ngenye indlela. f Ngaphandle kwalapho kuvunyelwene ngenye indlela, Nb + V + Ti ≤ 0.15 %. g Akukho ukwengeza ngamabomu kuka-B okuvunyelwe futhi okusele okungu-B ≤ 0.001 %. | ||||||||
Impahla Mechanical
|
Ibanga lePipe | Ipayipi Lomzimba Wepayipi Elingenamthungo nelishiselwe | I-Weld Seam ye-EW, LW, SAW, ne-COWIpayipi | ||
| Isivuno Amandlaa Rt0.5 | Amandla Okuqinaa Rm | Ukwelula(ku-50 mm noma 2 in.) Af | Amandla Okuqinab Rm | |
| I-MPa (psi) | I-MPa (psi) | % | I-MPa (psi) | |
| imiz | imiz | imiz | imiz | |
| I-L175 noma i-A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| I-L175P noma i-A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 noma A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 noma B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| I-L290 noma i-X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| I-L320 noma i-X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| I-L360 noma i-X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| I-L390 noma i-X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| I-L415 noma i-X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| I-L450 noma i-X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| I-L485 noma i-X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| a Emabangeni aphakathi nendawo, umehluko phakathi kwamandla amancane okudonsa ashiwo kanye namandla amancane ashiwo ebhodini lamapayipi kuyoba njengoba kunikiwe etafuleni lebanga eliphezulu elilandelayo.b Emabangeni amaphakathi, ubuncane bamandla obuncane obuqinile obushiwo be-weld seam izoba yinani elifanayo nalelo elalinqunyelwe umzimba wepayipi kusetshenziswa umbhalo waphansi a). c Ubude obuncane obubekiwe,Af, evezwe ngamaphesenti futhi yafinyezwa kumaphesenti aseduze, izoba njengokunqunywa kusetshenziswa isibalo esilandelayo:
lapho C unyaka ka-1940 wokubala kusetshenziswa amayunithi e-SI kanye nezi-625,000 zokubala kusetshenziswa amayunithi e-USC; AI-xc iyindawo esebenzayo yokuhlola i-tensile test piece, evezwa ngamamilimitha ayisikwele (amayintshi ayisikwele), kanjena: I-1) ngezingcezu zokuhlola eziyisiyingi, i-130 mm2 (0.20 in.2) ye-12.7 mm (0.500 in.) kanye no-8.9 mm (0.350 in.) izingcezu zokuhlola ububanzi; 65 mm2 (0.10 in.2) ngo-6.4 mm (0.250 in.) izingcezu zokuhlola ububanzi; 2) ngezingcezu zokuhlola ezigcwele, okungaphansi kuka-a) 485 mm2 (0.75 in.2) kanye b) nendawo enqamula ingxenye yocezu lokuhlola, etholakala kusetshenziswa ububanzi obushiwo bangaphandle kanye nobukhulu bodonga obushiwo bepayipi, ukuzungeza ku-10 mm2 eseduze (0.01 ku-2); 3) izingcezu zokuhlolwa kwe-strip, okungaphansi kuka-a) 485 mm2 (0.75 in.2) kanye b) nendawo enqamula ingxenye yesiqeshana sokuhlola, etholakala kusetshenziswa ububanzi obubekiwe besiqephu sokuhlola kanye nobukhulu bodonga obucacisiwe bepayipi. , ifinyezwe ku-10 mm2 eseduze (0.01 ku-2); U amandla okuqina amancane ashiwo, avezwa ngama-megapascals (amaphawundi ngeyintshi yesikwele). | ||||
Ngaphandle kobubanzi, ngaphandle kokuyindilinga nokuqina kodonga
| Kucaciswe Ngaphandle Ububanzi D (ku) | Ukubekezelela Ububanzi, amayintshi d | Ukubekezelelana Okungaphandle Kwe-Roundness ku | ||||
| Ipayipi ngaphandle kokuphela a | Isiphetho sepayipi a,b,c | Ipayipi ngaphandle kokuphela a | Ipayipi End a,b,c | |||
| Ipayipi le-SMLS | Ipayipi elishiselwe | Ipayipi le-SMLS | Ipayipi elishiselwe | |||
| < 2.375 | -0.031 ukuze + 0.016 | - 0.031 ukuze + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 kuya ku-6.625 | 0.020D ye | 0.015D ye | ||||
| +/- 0.0075D | - 0.016 ukuze + 0.063 | D/t≤75 | D/t≤75 | |||
| Ngesivumelwano se | Ngesivumelwano se | |||||
| > 6.625 ukuze 24.000 | +/- 0.0075D | +/- 0.0075D, kodwa ubuningi obungu-0.125 | +/- 0.005D, kodwa ubuningi obungu-0.063 | 0.020D | 0.015D | |
| > 24 kuya ku-56 | +/- 0.01D | +/- 0.005D kodwa ubuningi be-0.160 | +/- 0.079 | +/- 0.063 | 0.015D kodwa ubuningi obungu-0.060 | 0.01D kodwa ubuningi obungu-0.500 |
| Ngoba | Ngoba | |||||
| D/t≤75 | D/t≤75 | |||||
| Ngesivumelwano | Ngesivumelwano | |||||
| okwe | okwe | |||||
| D/t≤75 | D/t≤75 | |||||
| >56 | Njengoba kuvunyelwene | |||||
| a. Ukuphela kwepayipi kuhlanganisa ubude obungu-4 ekudleni ngakunye komkhawulo wepayipi | ||||||
| b. Epayipini le-SMLS ukubekezelela kuyasebenza ku-t≤0.984in futhi ukubekezelelwa kwepayipi eliwugqinsi kuzoba njengoba kuvunyelwene. | ||||||
| c. Epayipini elinwetshiwe eline-D≥8.625in kanye nepayipi elinganwetshiwe, ukubekezelela ububanzi kanye nokubekezelela ngaphandle kwendingilizi kungase kunqunywe kusetshenziswa i-diameter yangaphakathi ebaliwe noma kukalwe i-diameter yangaphakathi kune-OD eshiwo. | ||||||
| d. Ukunquma ukuthobelana nokubekezelelana kobubanzi, ububanzi bepayipi buchazwa njengesiyingi sepayipi kunoma iyiphi indiza eyisiyingi ehlukaniswa nge-Pi. | ||||||
| Ukujiya kodonga | Ukubekezelelana a |
| t amayintshi | amayintshi |
| Ipayipi le-SMLS b | |
| ≤ 0.157 | -1.2 |
| > 0.157 kuya ku-<0.948 | + 0.150t / – 0.125t |
| ≥ 0.984 | + 0.146 noma + 0.1t, noma yikuphi okukhulu kunakho |
| – 0.120 noma – 0.1t, kuye ngokuthi iyiphi enkulu | |
| Ipayipi elishiselwe c,d | |
| ≤ 0.197 | +/- 0.020 |
| > 0.197 ukuze <0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 |
| a. Uma i-oda lokuthenga licacisa ukubekezelela kokususa ukujiya kodonga okuncane kunenani elisebenzayo elinikezwe kuleli thebula, ukubekezelela okungeziwe kogqinsi lwezindonga kuzokwenyuswa ngenani elanele ukuze kugcinwe ububanzi obusebenzayo bokubekezelelana. | |
| b. Epayipini eline-D≥ 14.000 in kanye no-t≥0.984in, ukubekezelela ukujiya kodonga endaweni kungase kudlule ukubekezelela ukushuba kodonga ngo-0.05t eyengeziwe inqobo nje uma ukubekezelela okungeziwe kwesisindo kungeqiwe. | |
| c. Ukubekezelela okungeziwe kokuqina kodonga akusebenzi endaweni yokushisela | |
| d. Bona imininingwane egcwele ye-API5L ukuze uthole imininingwane egcwele | |
Ukubekezelelana
Isidingo Sokuhlola
Ukuhlolwa kwe-Hydrostatic
Ipayipi ukumelana nokuhlolwa kwe-hydrostatic ngaphandle kokuvuza ngomthungo we-weld noma umzimba wepayipi. Amajoyinti akudingeki ahlolwe i-hydrostatic inqobo nje uma izigaba zamapayipi ezisetshenzisiwe zihlolwe ngempumelelo.
Goba ukuhlolwa
Akukho mifantu ezokwenzeka kunoma iyiphi ingxenye yesiqeshana sokuhlola futhi akukho kuvulwa kwe-weld okuzokwenzeka.
Ukuhlolwa kokucaba
Indlela yokwamukela yokuhlolwa kokucaba izoba:
- EW amapayipi D<12.750 in:
- I-X60 ene-T 500in. Ngeke kube khona ukuvulwa kwe-weld ngaphambi kokuba ibanga phakathi kwamapuleti libe ngaphansi kwama-66% obubanzi bangaphandle bokuqala. Kuwo wonke amabanga nodonga, 50%.
- Epayipini eline-D/t> 10, akumele kuvuleke i-weld ngaphambi kokuba ibanga phakathi kwamapuleti libe ngaphansi kuka-30% we-diameter yasekuqaleni yangaphandle.
- Ukuze uthole abanye osayizi bheka incazelo egcwele ye-API 5L.
Ukuhlolwa komthelela we-CVN kwe-PSL2
Osayizi abaningi bamapayipi e-PSL2 namabanga adinga i-CVN. Ipayipi elingenamthungo kufanele lihlolwe emzimbeni. Ipayipi elishiselwe kufanele lihlolwe emzimbeni, ukushiselwa kwamapayipi nendawo ethinteke ukushisa. Bheka ukucaciswa okugcwele kwe-API 5L kweshadi losayizi namabanga kanye namavelu wamandla amuncwa adingekayo.
