Yogulitsa Mtengo China Seamless Zitsulo Pipe kwa Oli ndi Gasi Line chitoliro
Ndi kasamalidwe kathu kopambana, luso lamphamvu komanso makina okhwima okhwima, timapitiliza kupatsa ogula athu zinthu zabwino kwambiri, zotsika mtengo komanso makampani abwino kwambiri. Tikufuna kukhala pakati pa mabwenzi anu odalirika ndikupeza chikhutiro chanuchitoliro cha mzere, Chitoliro chosasunthika, chitoliro cha gasi, Chitoliro chachitsulo, Zomwe takumana nazo zimatipangitsa kukhala ofunikira kwa makasitomala athu. Khalidwe lathu limadzilankhulira lokha zomwe sizimasokoneza, kukhetsa kapena kuwonongeka, kotero kuti makasitomala athu azikhala otsimikiza nthawi zonse poyitanitsa.
Mwezi uno tamaliza kuyitanitsa ntchito yapakhomo ya chitoliro cha gasi.
Zinaphatikizapo X60, X52 ndi GrB
mutha kuwona mafotokozedwe ndi kukula kwake:
| Chitoliro Chopanda L245N | 168.3 | 5 |
| Chitoliro Chopanda L245N | 114.3 | 5 |
| Chitoliro Chopanda L245N | 88.9 | 5 |
| Chitoliro Chopanda L245N | 60.3 | 5 |
| Chitoliro Chopanda L245N | 168.3 | 12.5 |
| Chitoliro Chopanda L245N | 168.3 | 6.4 |
| Chitoliro chosasunthika L415N | 406.4 | 12.5 |
| Chitoliro chosasunthika L360N | 323.9 | 12.5 |
| Mtengo wa PipeL360N | 273.1 | 10 |
| Chitoliro Chopanda L245N | 114.3 | 6.3 |
| Chitoliro Chopanda L245N | 88.9 | 5 |
| Chitoliro Chopanda L245N | 60.3 | 5 |
| Chitoliro Chopanda L245N | 33.7 | 5 |
Pakuyitanitsa uku, imapempha kuyesa kwamphamvu -29 °. Ndipo tadula zitsanzo kuti tiyese. Zotsatira zake ndi zabwino kwambiri.
Koma pamlingo, zimangopempha 0 °. kotero osadandaula za khalidwe.
Kugwiritsa ntchito
Paipiyi imagwiritsidwa ntchito kunyamula mafuta, nthunzi ndi madzi otengedwa kuchokera pansi kupita kumakampani amafuta ndi gasi kudzera papaipi.
Main Grade
Gulu la API 5L mzere chitsulo chitoliro: Gr.B X42 X52 X60 X65 X70
Chigawo cha Chemical
| Gulu lachitsulo (Dzina lachitsulo) | Misa Fraction, Kutengera Kutentha ndi Kuwunika Kwazinthundi, g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max b | max b | min | max | max | max | max | max | |
| Chitoliro Chopanda Msoko | ||||||||
| L175 kapena A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175P kapena A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 kapena A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 kapena B | 0.28 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 kapena X42 | 0.28 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 kapena X46 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 kapena X52 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 kapena X56 | 0.28 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 kapena X60 | 0.28 ndi | 1.40 ndi | - | 0.030 | 0.030 | f | f | f |
| L450 kapena X65 | 0.28 ndi | 1.40 ndi | - | 0.030 | 0.030 | f | f | f |
| L485 kapena X70 | 0.28 ndi | 1.40 ndi | - | 0.030 | 0.030 | f | f | f |
| Welded Chitoliro | ||||||||
| L175 kapena A25 | 0.21 | 0.60 | - | 0.030 | 0.030 | - | - | - |
| L175P kapena A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | - | - | - |
| L210 kapena A | 0.22 | 0.90 | - | 0.030 | 0.030 | - | - | - |
| L245 kapena B | 0.26 | 1.20 | - | 0.030 | 0.030 | c,d | c,d | d |
| L290 kapena X42 | 0.26 | 1.30 | - | 0.030 | 0.030 | d | d | d |
| L320 kapena X46 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L360 kapena X52 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L390 kapena X56 | 0.26 | 1.40 | - | 0.030 | 0.030 | d | d | d |
| L415 kapena X60 | 0.26 ndi | 1.40 ndi | - | 0.030 | 0.030 | f | f | f |
| L450 kapena X65 | 0.26 ndi | 1.45 ndi | - | 0.030 | 0.030 | f | f | f |
| L485 kapena X70 | 0.26 ndi | 1.65 ndi | - | 0.030 | 0.030 | f | f | f |
| ndi Cu ≤ 0.50%; Ndi ≤ 0.50%; Cr ≤ 0.50% ndi Mo ≤ 0.15%. b Pakuchepetsa kulikonse kwa 0.01% pansi pamlingo womwe wafotokozedwa pamlingo wa kaboni, kuwonjezeka kwa 0.05% pamwamba pamlingo womwe waperekedwa kwa Mn ndikololedwa, mpaka 1.65% pamlingo wa ≥ L245 kapena B, koma ≤ L360 kapena X52; mpaka 1.75% pamlingo wapamwamba> L360 kapena X52, koma <L485 kapena X70; ndi kufika pa 2.00 % pa Gulu L485 kapena X70. c Pokhapokha atagwirizana mwanjira ina, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Pokhapokha atagwirizana. f Pokhapokha atagwirizana mwanjira ina, Nb + V + Ti ≤ 0.15 %. g Palibe kuwonjezera dala kwa B ndikololedwa ndipo B yotsalira ≤ 0.001 %. | ||||||||
Mechanical Property
|
Gulu la Pipe | Chitoliro cha Chitoliro cha Chitoliro Chopanda Msoko ndi Chowotcherera | Weld Seam ya EW, LW, SAW, ndi COWChitoliro | ||
| Zokolola Mphamvua Rt0.5 | Kulimba kwamakokedwea Rm | Elongation(pa 50 mm kapena 2 in.)Af | Kulimba kwamakokedweb Rm | |
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 kapena A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175P kapena A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 kapena A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 kapena B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 kapena X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 kapena X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 kapena X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 kapena X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 kapena X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 kapena X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 kapena X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| a Kwa magiredi apakati, kusiyana pakati pa mphamvu yokhazikika yocheperako yomwe yatchulidwa ndi mphamvu yakuchulukira yocheperako ya thupi la chitoliro kudzakhala monga momwe zaperekedwa patebulo la giredi yapamwamba yotsatira.b adzakhala mtengo wofanana ndi womwe unatsimikiziridwa ndi thupi la chitoliro pogwiritsa ntchito mawu a m'munsi a) .Af, yosonyezedwa mu peresenti ndi kuzunguliridwa ku peresenti yapafupi, idzatsimikiziridwa pogwiritsa ntchito equation yotsatirayi:
ku C ndi 1940 powerengera pogwiritsa ntchito ma SI mayunitsi ndi 625,000 powerengera pogwiritsa ntchito ma USC; Axc ndiye gawo loyeserera loyeserera, lomwe limawonetsedwa masikweya mamilimita (ma mainchesi akulu), motere: 1) kwa zozungulira mtanda gawo mayeso zidutswa, 130 mm2 (0.20 mu.2) kwa 12.7 mm (0.500 mu.) ndi 8.9 mm (0.350 mu.) zidutswa mayeso awiri; 65 mm2 (0.10 mu.2) kwa 6.4 mm (0.250 mu.) zidutswa mayeso awiri; 2) pazigawo zonse zoyeserera, zocheperako za a) 485 mm2 (0.75 in.2) ndi b) gawo lagawo lachiyeso, lotengedwa pogwiritsa ntchito mainchesi akunja akunja ndi makulidwe a khoma la chitoliro, kuzungulira kwa 10 mm2 wapafupi (0.01 mu.2); 3) kwa zidutswa zoyeserera, zochepa za a) 485 mm2 (0.75 mu.2) ndi b) gawo la gawo lachiyeso, lopangidwa pogwiritsa ntchito m'lifupi mwake mwachiyeso choyesera komanso makulidwe a khoma la chitoliro. , yozungulira mpaka 10 mm2 yapafupi (0.01 mu.2); U ndi mphamvu yocheperako yomwe yatchulidwa, yowonetsedwa mu megapascals (mapaundi pa inchi imodzi). | ||||
Kunja m'mimba mwake, kuchokera kuzungulira ndi makulidwe a khoma
| Kutchulidwa Kunja Kwa Diameter D (mu) | Kulekerera kwa Diameter, mainchesi d | Out-of-Roundness Tolerance mu | ||||
| Chitoliro kupatula mapeto a | Mapeto a chitoliro a,b,c | Chitoliro kupatula Mapeto a | Pipe End a,b,c | |||
| Mtengo wa SMLS | Welded Chitoliro | Mtengo wa SMLS | Welded Chitoliro | |||
| <2.375 | -0.031 kuti + 0.016 | kuchokera 0.031 mpaka + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 mpaka 6.625 | 0.020D pa | 0.015D pa | ||||
| +/- 0.0075D | kuchokera 0.016 mpaka +0.063 | D/t≤75 | D/t≤75 | |||
| Mwa mgwirizano wa | Mwa mgwirizano wa | |||||
| > 6.625 mpaka 24.000 | +/- 0.0075D | +/- 0.0075D, koma kuchuluka kwa 0.125 | +/- 0.005D, koma kuchuluka kwa 0.063 | 0.020D | 0.015D | |
| > 24 mpaka 56 | +/- 0.01D | +/- 0.005D koma kuchuluka kwa 0.160 | +/- 0.079 | +/- 0.063 | 0.015D koma osapitirira 0.060 | 0.01D koma osapitirira 0.500 |
| Za | Za | |||||
| D/t≤75 | D/t≤75 | |||||
| Mwa pangano | Mwa pangano | |||||
| za | za | |||||
| D/t≤75 | D/t≤75 | |||||
| > 56 | Monga momwe anavomerezera | |||||
| a. Kumapeto kwa chitoliro kumaphatikizapo kutalika kwa 4 mu adadya malekezero a chitoliro chilichonse | ||||||
| b. Kwa chitoliro cha SMLS kulolerana kumagwira ntchito t≤0.984in ndipo kulolera kwa chitoliro chokulirapo kudzakhala monga momwe anavomerezera. | ||||||
| c. Kwa chitoliro chokulitsidwa ndi D≥8.625in komanso chitoliro chosakulidwa, kulolerana kwapakati ndi kulolerana kwakunja kungadziwike pogwiritsa ntchito mainchesi owerengeka kapena kuyeza m'mimba mwake osati OD yotchulidwa. | ||||||
| d. Kuti mudziwe kutsata kulekerera kwapakati, kutalika kwa chitoliro kumatanthauzidwa ngati circumference ya chitoliro mu ndege iliyonse yozungulira yogawidwa ndi Pi. | ||||||
| Khoma makulidwe | Kulekerera a |
| t inchi | mainchesi |
| SMLS chitoliro b | |
| ≤ 0.157 | -1.2 |
| Kuchokera ku 0.157 mpaka 0.948 | + 0.150t / - 0.125t |
| ≥ 0.984 | + 0.146 kapena + 0.1t, chomwe chili chachikulu |
| - 0.120 kapena - 0.1t, chomwe chili chachikulu | |
| Welded chitoliro c,d | |
| ≤ 0.197 | +/- 0.020 |
| Kuchokera ku 0.197 mpaka 0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 |
| a. Ngati zogulira zikuwonetsa kulekerera kwa minus kwa makulidwe a khoma kucheperako mtengo womwe waperekedwa patebuloli, kupirira kophatikizana kwa makulidwe a khoma kudzawonjezedwa ndi kuchuluka kokwanira kuti mupitirizebe kupirira. | |
| b. Kwa chitoliro chokhala ndi D≥ 14.000 mkati ndi t≥0.984in, kulolerana kwa makulidwe a khoma kwanuko kumatha kupitilira kulekerera kwa makulidwe a khoma ndi 0.05t yowonjezera malinga ngati kulekerera kowonjezera kwa misa sikudutsa. | |
| c. The kuphatikiza kulolerana kwa khoma thickens si ntchito ku weld dera | |
| d. Onani zonse za API5L kuti mumve zambiri | |
Kulekerera
Chofunikira Choyesa
Kuyesedwa kwa Hydrostatic
Chitoliro chopirira kuyesedwa kwa hydrostatic popanda kutayikira kudzera mumsoko wowotcherera kapena thupi la chitoliro. Zolumikizira siziyenera kuyesedwa ndi hydrostatic kupereka magawo a mapaipi omwe amagwiritsidwa ntchito adayesedwa bwino.
Bend mayeso
Palibe ming'alu yomwe idzachitika pagawo lililonse lachiyeso ndipo palibe kutsegulidwa kwa weld komwe kudzachitika.
Mayeso osalala
Njira zovomerezera mayeso a flattening ziyenera kukhala:
- EW mapaipi D<12.750 mu:
- X60 yokhala ndi T500in. Sipadzakhala kutsegula kwa kuwotcherera pamaso mtunda pakati pa mbale ndi zosakwana 66% ya awiri oyambirira kunja awiri. Kwa magiredi onse ndi khoma, 50%.
- Pakuti chitoliro ndi D/t> 10, sipadzakhala kutsegula kwa kuwotcherera mtunda pakati pa mbale ndi zosakwana 30% ya choyambirira kunja awiri.
- Kwa kukula kwina tchulani API 5L yathunthu.
Kuyesa kwamphamvu kwa CVN kwa PSL2
Mapaipi ambiri a PSL2 ndi magiredi amafuna CVN. Chitoliro chopanda msoko chiyenera kuyesedwa m'thupi. Welded chitoliro ayenera kuyesedwa mu thupi, chitoliro kuwotcherera ndi kutentha bwanji zone. Onani tsatanetsatane wathunthu wa API 5L pa tchati cha makulidwe ndi magiredi ndi mphamvu zomwe zimafunikira mphamvu.
