Sampole ea mahala bakeng sa China ASTM A53/BS1387 Pipe ea Tšepe e Kentsoeng ka Mocheso e Kentsoeng
Kakaretso
Setho se seng le se seng se tsoang ho sehlopha sa rona se seholo sa lekeno la ts'ebetso se ananela litlhoko tsa bareki le puisano ea mokhatlo bakeng sa ASTM A53/BS1387 Hot Dipped Galvanized Pipe. Re tšepa hore re ka ba morekisi oa hau ea tšepahalang Chaena. Re lebeletse tšebelisano-'moho ea hau .Ka lilemo tse fetang 9 tsa phihlelo le sehlopha sa litsebi, re rometse lihlahisoa tsa rona linaheng tse ngata le libakeng tse ngata lefatšeng ka bophara. Re amohela bareki, mekhatlo ea likhoebo le metsoalle ho tsoa likarolong tsohle tsa lefats'e ho ikopanya le rona le ho batla tšebelisano-'moho molemong oa bobeli.
Hot-dip galvanizing e na le melemo ea ho roala junifomo, ho khomarela ka matla le bophelo bo bolelele ba tšebeletso. Liphetoho tse rarahaneng tsa 'mele le tsa lik'hemik'hale li etsahala pakeng tsa matrix a phala ea tšepe le tharollo ea ho qhibiliha ho etsa moalo oa alloy oa tšepe oa zinki o hananang le ho bola o nang le sebopeho se kopaneng. Lera la alloy le kopantsoe le lesela le hloekileng la zinki le matrix a phala ea tšepe. Ka hona, khanyetso ea eona ea kutu e matla.
Ho hlokahala hore u hlokomele hore lilemong tsa bo-1960 le bo-1970, linaha tse tsoetseng pele lefatšeng li ile tsa qala ho hlahisa mefuta e mecha ea liphaephe 'me butle-butle li thibela liphaephe tse entsoeng ka masenke. Makala a mane le li-commissions tse kenyeletsang Lekala la Kaho la China le tsona li fane ka tokomane e hlakisang hore lipeipi tsa masenke li thibetsoe ho tloha ka 2000 ho ea pele. Liphaephe tse nang le masenke li sebelisoa ka seoelo bakeng sa lipeipi tsa metsi a batang metseng e sa tsoa ahoa, 'me lipeipi tsa masenke li sebelisetsoa lipeipi tsa metsi a chesang metseng e meng.
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
