Kutumiza kunja China Zitsulo Welded Carbon Pipe
Tumizani kunjaChitoliro cha Carbon Steel,China Steel Pipe,Chitoliro Chotsika Chachitsulo cha Carbon,welded mapaipi, ku China. Kampani yathu imakhazikika pakugulitsa mapaipi azitsulo zomata ndi mapaipi opanda zitsulo. Chaka chilichonse, matani masauzande a mapaipi azitsulo otenthedwa amatumizidwa kunja. Mapaipi otsekemera omwe nthawi zambiri amatumizidwa kunja amagawidwa mu LSAW ndi SSAW. Kodi mukudziwa kusiyana pakati pa LSAW Pipe ndi SSAW Pipe?
LSAW Pipe (Longitudinal Submerged Arc-Welding Pipe), yomwe imatchedwanso chitoliro cha SAWL. Imatenga mbale yachitsulo ngati yaiwisi, ndikuiumba ndi makina omangira, kenako ndikuwotcherera mbali ziwiri zomira. Kupyolera mu ndondomekoyi chitoliro chachitsulo cha LSAW chidzapeza ductility kwambiri, weld toughness, uniformity, plasticity ndi kusindikiza kwakukulu.
The LSAW chitoliro m'mimba mwake osiyanasiyana ndi zazikulu kuposa ERW, zambiri kuchokera 16 inchi kuti 60 inchi, 406mm kuti 1500mm. Kuchita bwino pa kukana kuthamanga kwambiri, komanso kukana kwa dzimbiri kwanthawi yayitali.
Chakhala chimagwiritsidwa ntchito mu mapaipi mafuta ndi gasi, makamaka chofunika awiri lalikulu ndi wandiweyani khoma chitoliro ndi mphamvu mkulu ndi mtunda wautali. Pakalipano pomanga dongosolo lomwe likufunika mphamvu zolimba, mankhwala a madzi, mafakitale otentha, kumanga mlatho, ndi zina zotero. Malingana ndi API, chitoliro cha LSAW (SAWL chitoliro kapena chitoliro cha JCOE) chimasankhidwa mwapadera mumayendedwe akuluakulu amafuta ndi gasi. mapaipi kudutsa mzindawo, nyanja, ndi tawuni. Awa ndi magawo a kalasi 1 ndi kalasi 2.
SSAW Chitoliro (Spiral Submerged Arc-Welding Pipe), amatchedwanso HSAW chitoliro (Helical SAW), kuwotcherera mzere mawonekedwe ngati helix. Ikugwiritsa ntchito ukadaulo womwewo wowotcherera wa Submerged Arc-Welding ndi LSAW chitoliro. Mosiyana SSAW chitoliro ndi spiral welded kumene LSAW ndi longitudinally welded. Kupanga ndondomeko akugubuduza zitsulo Mzere, kuti anagubuduza malangizo ndi ngodya ndi malangizo a pakati chitoliro, kupanga ndi kuwotcherera, kotero kuwotcherera msoko ali mu mzere ozungulira.
The SSAW pipe diameter range from 20 inchi mpaka 100 inchi, 406 mm mpaka 2540 mm. Ubwino wa mbali ndikuti titha kupeza makulidwe osiyanasiyana a mapaipi a SSAW okhala ndi kukula kofanana kwa chingwe chachitsulo, pali kugwiritsa ntchito kwakukulu kwazinthu zopangira. zitsulo Mzere, ndi kuwotcherera msoko ayenera kupewa kupsyinjika chachikulu, zisudzo zabwino kupirira kupsyinjika.
The kuipa ndi zoipa thupi gawo, kuwotcherera msoko kutalika ndi yaitali kuposa chitoliro kutalika, zosavuta chifukwa zolakwika ming'alu, dzenje mpweya, cinder kuphatikiza, tsankho kuwotcherera, kuwotcherera mphamvu mu kukoka udindo.
Kwa machitidwe a mapaipi amafuta ndi gasi, koma pamapangidwe amafuta, chitoliro cha SSAW / HSAW chingagwiritsidwe ntchito m'kalasi 3 ndi madera a 4. Kapangidwe kamangidwe, zoyendera madzi ndi zimbudzi, makampani matenthedwe, nyumba etc.
Mwachidule
Kugwiritsa ntchito
Amagwiritsidwa ntchito makamaka pazigawo zamphamvu ndi zokakamiza, komanso pazolinga zonse za nthunzi, madzi, gasi ndi mapaipi amlengalenga.
Main Grade
G.A, GR.B
Chigawo cha Chemical
| Gulu | Gawo % ≤ | ||||||||
| C | Mn | P | S | KuA | NdiA | CrA | MoA | VA | |
| Mtundu wa S (chitoliro chopanda msoko) | |||||||||
| G.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| E mtundu (Resistance welded chitoliro) | |||||||||
| G.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| F mtundu (Chitoliro Chowotcherera cha Ng'anjo) | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
A Chiwerengero cha zinthu zisanu izi sichiyenera kupitirira 1.00%.
B Pakuchepa kulikonse kwa 0.01% muzambiri za kaboni, kuchuluka kwa manganese kumaloledwa kuwonjezeka ndi 0.06%, koma kuchuluka kwake sikungapitirire 1.35%.
C Kuchepa kulikonse kwa 0.01% muzambiri za kaboni kumapangitsa kuti manganese achuluke ndi 0.06%, koma kuchuluka kwake kuyenera kusapitilira 1.65%.
Mechanical Property
| chinthu | G.A | GR.B |
| kulimba kwamphamvu, ≥, psi [MPa] Mphamvu Zokolola, ≥, psi [MPa] Gauge 2 in. kapena 50mm elongation | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A Kutalikitsa kocheperako kwa kutalika kwa gauge 2in. (50mm) zidzatsimikiziridwa ndi chilinganizo zotsatirazi:
e=625000(1940)A0.2/U0.9
e = kutalika kochepa kwa geji 2in. (50mm), peresenti yozungulira mpaka 0.5% yapafupi;
A = Kuwerengedwa molingana ndi kukula kwakunja kwa chubu chodziwika bwino kapena m'lifupi mwadzina lachitsanzo chokhazikika komanso makulidwe ake a khoma, ndikuzunguliridwa kudera lapafupi kwambiri lachitsanzo chokhazikika cha 0.01 in.2 (1 mm2), ndipo Imafananizidwa ndi 0.75in.2 (500mm2), iliyonse yomwe ili yaying'ono.
U = mphamvu yocheperako yokhazikika, psi (MPa).
B Pamitundu yosiyanasiyana yamitundu yosiyanasiyana yamayeso oyeserera komanso mphamvu zocheperako zokhazikika, kutalika kocheperako kumawonetsedwa mu Table X4.1 kapena Table X4.2, malingana ndi kagwiritsidwe ntchito kake.
Chofunikira Choyesa
Kuyesa kwamphamvu, kuyesa kupindika, kuyesa kwa hydrostatic, kuyesa kwamagetsi osawononga ma welds.
Kupereka Mphamvu
Kuthekera Kopereka: Matani 2000 pamwezi Pagulu lililonse la ASTM A53/A53M-2012 Pipe yachitsulo
Kupaka
M'mitolo Ndipo M'bokosi Lamphamvu Lamatabwa
Kutumiza
7-14 masiku ngati katundu, 30-45 masiku kubala
Malipiro
30% depsoit, 70% L/C kapena B/L buku kapena 100% L/C pakuona
Tsatanetsatane wa Zamalonda
Boiler Tube
GB/T 8162-2008
ASTM A519-2006
Chithunzi cha EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
