China Hot Dipped Seamless Steel Pipe/Welded Steel Pipe, ASTM A53 API 5L
Mwachidule
Kutha kukhala kuyankha kwathu kuti tikwaniritse zomwe mumakonda ndikukupatsani mwaluso. Kukhutira kwanu ndiye mphotho yathu yayikulu. Tikuyang'ana kutsogolo kwa ulendo wanu wa kukula pamodzi. Chifukwa cha khama lathu, katundu wathu wapambana chidaliro cha ogula ndipo wakhala akugulitsidwa mofanana kuno ndi kunja. Fakitale yathu imaumirira pa mfundo ya "Quality First, Sustainable Development", ndipo imatenga "Bizinesi Yowona, Mapindu a Mutual" monga cholinga chathu chotukuka. Mamembala onse akuthokoza moona mtima chifukwa cha chithandizo chamakasitomala akale ndi atsopano. Tidzagwirabe ntchito molimbika ndikukupatsani zogulitsa ndi ntchito zapamwamba kwambiri.
About mpweya zitsulo welded ndi chitoliro wopanda msoko, kuonjezera dzimbiri kukana luso, padzakhala mtundu wina pamwamba mankhwala chitoliro. Chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri ndi zinc coat (galvanize). Pali mitundu iwiri ya galvanizing njira: ozizira glavanizing (electrogalvanizing) ndi otentha galvanizing. Chifukwa vuto la chilengedwe, kuzizira kozizira kwakhala kochepa ku China, ndipo malata otentha sangagwiritsidwe ntchito ngati chitoliro cha madzi, koma amagwiritsidwa ntchito kwambiri kuzimitsa moto, magetsi ndi misewu yayikulu.
Cold galvanizing ndi electrogalvanizing, chifukwa cha malire a njira, malaya a zinki sakhala ochuluka, makamaka mu 10-50g/m2, motero, mphamvu yake yokana kutukuta imakhala yochepa kuposa galvanizing yotentha. Unduna wa Zomangamanga wathetsa mwalamulo kuthetsa mapaipi ozizira opaka malata ndiukadaulo wakumbuyo, ndipo ndikoletsedwa kugwiritsa ntchito mapaipi ozizira a malata popangira madzi ndi gasi. The kanasonkhezereka wosanjikiza ozizira-kuviika kanasonkhezereka zitsulo chitoliro ndi wosanjikiza electroplated, ndi wosanjikiza nthaka ndi zitsulo chitoliro gawo lapansi ndi wosanjikiza paokha. Zinc wosanjikiza ndi woonda kwambiri, ndipo nthaka wosanjikiza amangotsatira gawo lapansi lachitsulo chachitsulo ndipo ndikosavuta kugwa. Chifukwa chake, kukana kwake kwa dzimbiri ndikochepa.
Chitoliro chotentha cha galvanizing chitoliro chimapangidwa ndi zomwe chitsulo chosungunuka ndi gawo lapansi lachitsulo, kotero kuti gawo lapansi ndi plating wosanjikiza zimaphatikizidwa, ndipo plating wosanjikiza sizovuta kugwa. Hot dip galvanizing ali ndi ubwino wokutira yunifolomu, kumamatira mwamphamvu komanso moyo wautali wautumiki. The otentha-kuviika kanasonkhezereka zitsulo chitoliro gawo lapansi ndi wosungunula plating njira amakumana zovuta thupi ndi mankhwala zimachitikira kupanga dzimbiri zosagwira nthaka zinki-chitsulo aloyi wosanjikiza ndi kamangidwe yaying'ono. Chigawo cha alloy chimaphatikizidwa ndi chosanjikiza choyera cha zinc ndi gawo lapansi lachitsulo cha chitoliro, kotero kukana kwake kwa dzimbiri kumakhala kolimba.
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
