China Hot Dipped Seamless Steel Pipe/Welded Steel Pipe, ASTM A53 API 5L
Kakaretso
E ka ba boikarabello ba rona ho khotsofatsa litakatso tsa hau le ho u fa bokhoni. Khotsofalo ea hau ke moputso oa rona o moholo. Re batla ho ea pele leetong la hau bakeng sa kholo e kopaneng. Ka lebaka la matsapa a rona, thepa ea rona e hapile tšepo ea bareki 'me e rekisoa haholo ka ho lekana mona le kantle ho naha. Feme ea rona e tsitlallela molao-motheo oa "Boleng ba Pele, Tsoelo-pele e Tsoelang Pele", 'me e nka "Khoebo e Tšepahalang, Melemo e Kopanetsoeng" e le sepheo sa rona se ka ntlafatsoang. Litho tsohle li leboha ka tieo tšehetso ea bareki ba khale le ba bacha. Re tla lula re sebetsa ka thata le ho u fa lihlahisoa le litšebeletso tsa boleng bo holimo.
Mabapi le phala ea tšepe e cheselitsoeng le e se nang seam, bakeng sa ho eketsa bokhoni ba ho hanyetsa kutu, ho tla ba le kalafo ea mofuta oa holim'a phala. E 'ngoe ea tse sebelisoang haholo ke seaparo sa zinki (galvanize). Ho na le mekhoa e 'meli ea mofuta oa galvanizing: serame sa glavanizing (electrogalvanizing) le ho chesa ho chesang. Hobane bothata ba tikoloho, serame sa glavanizing se fokotsehile Chaena, 'me sekontiri se chesang le sona se ke ke sa sebelisoa e le phala ea phepelo ea metsi, empa se sebelisoa haholo ho tima mollo, motlakase le litsela tse kholo.
Cold galvanizing ke electrogalvanizing, ka lebaka la moeli oa mokhoa, seaparo sa zinki ha se ngata haholo, haholo-holo ka 10-50g / m2, ka hona, bokhoni ba eona ba ho thibela kutu bo ka tlaase ho galvanizing e chesang. Lekala la Kaho le emisitse ka molao pheliso ea lipeipi tse batang tsa masenke ka mahlale a morao-rao, hape le thibetsoe ho sebelisa lipeipi tse batang tsa masenke bakeng sa lipeipi tsa metsi le tsa khase. The galvanized lera ea batang-dip galvanized tšepe phala ke lera electroplated, 'me lera zinki le tšepe substrate phala li entsoe ka boikemelo. Lesela la zinki le batla le le tšesaane, 'me lesela la zinki le khomarela feela phala ea tšepe' me ho bonolo ho oa. Ka hona, khanyetso ea eona ea kutu e fokola.
Lera la motsoako oa phala e chesang ea galvanizing le thehoa ke karabelo ea tšepe e qhibilihisitsoeng le substrate ea tšepe, e le hore substrate le lera la plating li kopane, 'me lera la plating ha le bonolo ho oa. Hot dip galvanizing e na le melemo ea ho roala junifomo, ho khomarela ka matla le bophelo bo bolelele ba tšebeletso. Karolo e ka tlaase ea peipi ea tšepe e kentsoeng ka sekontiri se chesang le mokelikeli o qhibilihisitsoeng oa ho qhibiliha o kopana le liphetoho tse rarahaneng tsa 'mele le tsa lik'hemik'hale ho etsa lera le sa khoneng ho bola le nang le sebopeho se kopaneng. Lera la alloy le kopantsoe le lesela le hloekileng la zinki le substrate ea pipe ea tšepe, kahoo ho hanyetsa ha eona ho matla ho matla.
Kopo
E sebelisoa haholo-holo bakeng sa likarolo tsa matla le khatello, le molemong oa kakaretso oa lipeipi tsa mouoane, metsi, khase le moea.
Kereiti e ka Sehloohong
G.A, GR.B
Karolo ea Lik'hemik'hale
| Kereiti | Karolo % ≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| Mofuta oa S (peipi e se nang moeli) | |||||||||
| 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 |
| Mofuta oa E (Resistance welded pipe) | |||||||||
| 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 |
| Mofuta oa F | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
A Kakaretso ea lintlha tsena tse hlano ha ea lokela ho ba kholo ho feta 1.00%.
B Bakeng sa phokotso e 'ngoe le e 'ngoe ea 0.01% ho palo e phahameng ea khabone, boholo ba manganese bo lumelloa ho eketseha ka 0.06%, empa boholo bo ke ke ba feta 1.35%.
C Phokotso e 'ngoe le e 'ngoe ea 0.01% ho palo e phahameng ea khabone e tla lumella boholo ba manganese ho eketseha ka 0.06%, empa boholo ha boa lokela ho feta 1.65%.
Thepa ea Mechini
| ntho | G.A | GR.B |
| matla a matla, ≥, psi [MPa] Kotulo e Matla, ≥, psi [MPa] Bolelele ba 2in.kapa 50mm | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A Bolelele ba bonyane ba gauge 2in. (50mm) e tla khethoa ka mokhoa o latelang:
e=625000(1940)A0.2/U0.9
e = bolelele ba bonyane ba gauge 2in. (50mm), peresente e lekanyelitsoe ho 0.5% e haufi;
A = E baloa ho ea ka bophara bo ka ntle bo boletsoeng ba tube ea lebitso kapa bophara bo tloaelehileng ba sampole e tsitsitseng le botenya ba eona ba lebota bo boletsoeng, 'me e pota-potiloe sebakeng se haufi-ufi sa sampuli ea 0.01 in.2 (1 mm2), mme E bapisoa le 0.75in.2 (500mm2), ho sa tsotellehe hore na ke efe e nyenyane.
U = matla a fokolang a fokolang, psi (MPa).
B Bakeng sa metswako e fapaneng ya boholo bo fapaneng ba disampole tsa teko le matla a fokolang a behilweng, bolelele bo hlokahalang bo bontshwa ho Lethathamo la X4.1 kapa Lethathamo la X4.2, ho latela ho sebetsa ha lona.
Tlhokahalo ea Teko
Teko ea tensile, teko ea ho khumama, tlhahlobo ea hydrostatic, tlhahlobo ea motlakase e sa senyeheng ea li-welds.
Matla a Phepelo
Matla a Phepelo: Lithane tse 2000 ka Khoeli Kereiting Ka 'ngoe ea ASTM A53/A53M-2012 Pipe ea Tšepe
Sephutheloana
Ka Mengata Le ka Lebokoseng le Matla la Lehong
Phano
Matsatsi a 7-14 haeba a le setokong, matsatsi a 30-45 ho hlahisa
Tefo
30% depsoit, 70% L/C kapa B/L kopi kapa 100% L/C ha u bona
Lintlha tsa Sehlahisoa
Tube ea boiler
GB/T 8162-2008
ASTM A519-2006
Tlhaloso: EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
