1. Tšepe ea Womic: Bokhoni ba Tlhahiso le Matla a Khamphani
Sehlopha sa Tšepe sa Womic se sebetsa mela e mengata ea tlhahiso ea LSAW e khonang ho hlahisa liphaephe tsa sebopeho sa ASTM A500 Kereiti ea C. A500 Kereiti ea C ke tube ea sebopeho sa tšepe ea carbon e kopantsoeng e batang ("e entsoeng ka serame" e bolela mocheso oa ho theha, eseng kalafo ea mocheso ea kamora ho tjheseletsa). Ts'ebetso ea LSAW e loketse likarolo tse kholo tsa sebopeho tse chitja tse fetang bokhoni ba ERW kapa li-mill tse se nang moqhaka.
●Mohala oa JCOE:Bakeng sa bophara ba 406mm – 1,422mm (16″–56″), botenya ba lebota bo fihlang ho 50.8mm. E loketse ho haha litšiea le litho tsa truss ea borokho.
● Mola oa UOE:Bakeng sa bophara ba 508mm – 1,220mm (20″–48″), botenya ba lebota bo fihlang ho 40mm. E hlahisa chitja e phahameng bakeng sa tšepe ea meralo e pepeneneng.
● Poleiti e Menoang (Seam se le Seng):Bakeng sa bophara ba 600mm – 2,500mm (24″–98″), botenya ba lebota ho tloha ho 25mm ho isa ho 80mm. E loketse litšiea tse boima tsa lebota le maoto a tora ea phetisetso.
● Poleiti e Menoang (Seam e Habeli):Bakeng sa bophara ba 1,200mm – 2,500mm (48″–98″), botenya ba lebota bo fihlang ho 80mm.
Bokgoni bohle ba LSAW bo feta ditone tse 300,000 ka selemo, ka tlhahiso ya A500 Kereiti ya C e fetang ditone tse 80,000 ka selemo. Womic Steel e na le ISO 9001, mme e ka fana ka tlhahlobo ya motho wa boraro ke SGS, BV, TÜV. Ditone tse dikete tsa A500 Kereiti ya C di fanwa bakeng sa diporojeke tsa meralo ya motheo tsa US (marokho, mabala a dipapadi, dipolante tsa diindasteri).
Ho tenyetseha ha Tlhahiso bakeng sa A500 Kereiti C:
JCOE: 406–1,422mm OD × 5.0–50.8mm Boima × ≤ 18m
UOE: 508–1,220mm OD × 5.0–40.0mm Boima × ≤ 24m
Poleiti e phutholohileng (sehokelo se le seng): 600–2,500mm OD × 25–80mm Boima × ≤ 18m
Poleiti e phutholohileng (sehokelo se habeli): 1,200–2,500mm OD × 25–80mm Boima × ≤ 18m
Liphaephe li ka fanoa ka pente ea primer (epoxy e nang le zinki e ngata, 40-80 microns), e se nang letho (e tlotsitsoeng ka oli), kapa e nang le galvanized e chesang.
2. ASTM A500 Kereiti C: Sebopeho sa thepa le Litšobotsi tsa Tshebetso
ASTM A500 Kereiti ya C ke kereiti ya matla a phahameng ka ho fetisisa tlhalosong ya A500 bakeng sa diphaephe tsa sebopeho sa tshepe ya khabone e entsweng ka ho welded e batang. Matla a fokolang a tlhahiso ke 345 MPa (50,000 psi) le matla a ho thaepa a 485 MPa (70,300 psi). E matla ho feta Kereiti ya B ka 25% (tlhahiso ke 290 MPa, thaepa ke 400 MPa). Kereiti ya C hangata e hlaloswa bakeng sa ditshebediso tsa sebopeho tse boima.
Sebopeho sa Lik'hemik'hale (max % ka boima - ASTM A500 ha e laele meeli e thata, empa e laela mefuta e tloaelehileng):
| Karolo | ASTM A500 Kereiti C (sebaka se tloaelehileng) | Taolo ea Basali |
| C | 0.23 max (ka tloaelo 0.20-0.23) | 0.20-0.23 |
| Mn | 1.35 max (e tloaelehileng 1.10-1.30) | 1.15-1.30 |
| P | 0.035 max | ≤ 0.030 |
| S | 0.035 max | ≤ 0.025 |
| Si | 0.30 max (e tloaelehileng) | 0.15-0.30 |
Thepa ea Mekaniki (Mocheso oa Kamore):
| Thepa | ASTM A500 Kereiti C |
| Matla a Tekanyo (metsotso) bakeng sa lipeipi tse chitja | 345 MPa (50,000 psi) |
| Matla a ho Tenyetseha (metsotso) | 485 MPa (70,300 psi) |
| Ho lelefatsa (bonyane) bakeng sa lipeipi tse chitja - gauge ea 50mm | 21% |
| Ho lelefatsa (bonyane) bakeng sa lipeipi tse chitja - gauge ea 200mm | 13% |
Papiso le A500 Kereiti B le A53 GR.B:
| Sehlopha | Tekanyo ea MPa | MPa e tenyetsehang | Tšebeliso e Tloaelehileng |
| ASTM A53 GR.B | 240 | 415 | Ka kakaretso ea sebopeho, matla a tlase |
| ASTM A500 Kereiti B | 290 | 400 | Matla a mahareng a sebopeho |
| ASTM A500 Kereiti C | 345 | 485 | Mejaro e matla ea sebopeho, e boima |
Matla a phahameng a Sehlopha sa C a dumella mabota a masesaane kapa bokgoni bo phahameng ba ho jara ha a bapiswa le Sehlopha sa B.
3. Ho Latela Maemo le Litekanyetso tsa Tekanyo
| Ntho | Tlhaloso |
| E tloaelehileng | ASTM A500 Kereiti B, Kereiti C |
| Mekhoa ea Tlhahiso | JCOE, UOE, poleiti e phutholohileng (sehokelo se le seng/se habeli) |
| Sebaka sa Bophara ba Kantle | 219mm – 2,500mm (8″ – 98″) |
| Botenya ba Lebota | JCOE/UOE: 5.0mm – 50.8mm; Poleiti e phutholohileng: 25mm – 80mm |
| Bolelele ba Nako | E tloaelehileng: 6m, 12m, 18m; E atolositsoe: ho fihlela ho 24m |
| Qetello ea ho Qetela | Qetello e se nang letho (PE), Qetello e Beveled (BE), kapa sekoere se sehiloeng |
| Qetello ea Bokaholimo | E hlobotse (e tlotsitsoe ka oli), E ntšo, E koahetsoe ke primer, E kentsoe ka galvanized ka ho chesa |
| Mamello (ASTM A500) | OD: ±0.5% bakeng sa ho nepahala; Boima: ±10%; Bolelele: ±25mm (bakeng sa ho seha ho tloaelehileng) |
| Ho otloloha | ≤ 0.2% ea bolelele |
| Ho se phele hantle | ≤ 2% (tekanyetso ea sebopeho) |
Mamello ea ASTM A500 ha e thata hakaalo ho feta API 5L, e leng se etsang hore tlhahiso ea LSAW e bophara bo boholo e be e theko e tlaase bakeng sa lits'ebetso tsa meaho.
4. Litekanyo le Litlhaloso tse Fumanehang – Phaephe ea Tšepe ea ASTM A500 Kereiti ea C LSAW (Boholo bo Tloaelehileng bo Khethiloeng)
| OD (mm) | Dikgetho tsa WT (mm) | Tshebetso | Boima bo ka bang teng (kg/m2) | Bolelele bo Tloaelehileng | Tšebeliso e Tloaelehileng |
| 219 | 5.0, 6.0, 8.0, 10.0, 12.5 | JCOE | 26.4 – 63.6 | 12m | Kholomo ea moaho |
| 273 | 6.0, 8.0, 10.0, 12.5, 14.0 | JCOE | 39.5 – 89.4 | 12m / 18m | Khoutu ea borokho |
| 324 | 8.0, 10.0, 12.5, 14.0, 16.0 | JCOE | 62.4 – 121.5 | 12m / 18m | Tora ea phetisetso |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0, 20.0 | JCOE/UOE | 78.5 – 190.4 | 12m / 18m | Boom ea crane |
| 508 | 10.0, 12.5, 14.0, 16.0, 20.0, 25.0 | UOE | 122.8 – 297.8 | 12m / 18m / 24m | Truss ea lebala la lipapali |
| 610 | 12.5, 14.0, 16.0, 20.0, 25.0, 30.0 | UOE | 184.2 – 429.1 | 12m / 18m | Kholomo e boima |
| 711 | 14.0, 16.0, 20.0, 25.0, 30.0, 35.0 | JCOE/UOE | 240.7 – 583.5 | 12m / 18m | Lehlakoreng le ka holimo la lebōpo |
| 813 | 16.0, 20.0, 25.0, 30.0, 35.0, 40.0 | JCOE | 314.4 – 762.7 | 12m / 18m | Khoro ea borokho |
| 914 | 20.0, 25.0, 30.0, 35.0, 40.0, 45.0 | JCOE/E phutholohileng | 441.0 – 964.8 | 12m / 18m | Foreimi ea indasteri |
| 1,016 | 20.0, 25.0, 30.0, 35.0, 40.0, 50.0 | E phutholohile | 491.3 – 1,191.7 | 12m | Monopole ea phetisetso |
| 1,220 | 25.0, 30.0, 35.0, 40.0, 50.0, 60.0 | E phutholohile | 736.5 – 1,716.9 | 12m | Liindasteri tse boima |
| 1,422 | 30.0, 35.0, 40.0, 50.0, 60.0, 70.0 | E phutholohile (e le 'ngoe) | 1,030 – 2,335 | 12m | Sebopeho se seholo |
| 1,600 | 35.0, 40.0, 50.0, 60.0, 70.0, 80.0 | E phutholohile (e habeli) | 1,350 – 3,000 | 12m | Morero o ikhethileng |
| 2,000 | 40.0, 50.0, 60.0, 70.0, 80.0 | E phutholohile (e habeli) | 1,933 – 3,784 | 12m | Meaho |
| 2,500 | 50.0, 60.0, 70.0, 80.0 | E phutholohile (e habeli) | 3,023 – 4,766 | 12m | Seemahale |
Bakeng sa lits'ebetso tsa sebopeho, mamello ea boholo ha e thata hakaalo, e leng se lumellang tlhahiso e theko e tlaase. Bakeng sa tšepe ea meralo e pepesitsoeng, ho sila ka weld le ho penta ka primer hoa khothaletsoa.
5. Maemo le Likereiti tse Tloaelehileng – Li-Tube tse Chitja tsa Sebopeho (LSAW)
| E tloaelehileng | Likereiti tsa Tšepe | Tšebeliso e Tloaelehileng | Mokhoa oa ho Theha |
| ASTM A500 | Sehlopha sa B, Sehlopha sa C | Liforeimi tsa meaho, marokho, litora | JCOE/UOE/E phutholohileng |
| ASTM A53 | GR.B | Ka kakaretso ea sebopeho, matla a tlase | JCOE |
| ASTM A252 | Sehlopha sa 2, Sehlopha sa 3 | Ho bokella (le sebopeho) | JCOE/E phutholohileng |
| EN 10219 | S355JRH, S355J2H | Meaho ea Europe | JCOE/E phutholohileng |
| CSA G40.21 | 350W, 350W | Meaho ea Canada | JCOE |
| AS/NZS 1163 | C350L0, C450L0 | Meaho ea Australia | JCOE |
Kakaretso ea tšebeliso:Litšiea tsa kaho, litho tsa lithapo tsa borokho, maoto a tora ea phetisetso, li-boom tsa crane, lithapo tsa marulelo a lebala la lipapali, mahlakore a holimo a lebōpong la leoatle, liforomo tsa indasteri.
6. Mekhoa ea Tlhahiso – LSAW bakeng sa Phaephe ea Sebopeho ea ASTM A500 Kereiti ea C
Bakeng sa lits'ebetso tsa sebopeho, boleng ba weld bo tlameha ho ba bo phethahetseng, empa botle (profaele e boreleli ea weld) ka linako tse ling boa hlokahala. Katoloso ea mechini ke boikhethelo.
Ts'ebetso ea JCOE (406–1,422mm OD, Boima ba 5.0–50.8mm):
● Ho thehoa ha JCO ka tatellano e tloaelehileng
● Ho tjheseletsa ka hare le kantle ho SAW
● Katoloso ea mechine (ha ho hlokahale - e ntlafatsa ho chitja bakeng sa meaho e bonahalang)
● Ho sila ka welding hoa fumaneha (qetello ea ho ntsha metsi bakeng sa tšepe e pepesitsoeng)
● E loketse likarolo tse ngata tsa meaho
Ts'ebetso ea UOE (508–1,220mm OD, Boima ba 5.0–40mm):
● Tobetsa ka holimo + tobetsa ka holimo ka ho atolosa
● E hlahisa liphaephe tse chitja haholo - e ntle bakeng sa lits'ebetso tsa meralo tse pepeneneng
● Sebopeho sa weld se tsitsitseng
Poleiti e Menoang (Seam se le Seng) bakeng sa Lebota le Boima (600–2,500mm OD, Boima ba 25–80mm):
● Meqolo e 4 e kobehang ka har'a silindara
● Ho tjheseletsa ka longitudinal SAW (ho sebelisa li-multi-pass bakeng sa mabota a teteaneng)
● Ha ho katoloso – ovate e fihlang ho 1-2% e amoheleha bakeng sa sebopeho
● E sebelisoa bakeng sa litšiea tse boima tsa lebota le likhoele tsa truss tse bophara bo boholo
Dikgetho tsa ho qeta ka mora ho tjheseletsa:
● Ho sila ka ho tjheseletsa:Bakeng sa tšepe e pepesitsoeng ka meralo, re sila sekoahelo sa weld flush.
● Seaparo sa pele:Tekanyetso ea epoxy primer e nang le zinki (40-80 microns) bakeng sa tšireletso ea mafome.
● Ho kenya ka galvanizing ka ho chesa:Ho tlala galvanizing ka phaephe ho fumaneha (bolelele bo boholo ba 12.5m).
7. Mekhoa ea Taolo le Teko ea Boleng bakeng sa Phaephe ea Tšepe ea LSAW ea ASTM A500 Grade C
| Sethaleng | Mokhoa oa Tlhahlobo | Morero |
| Poleiti | Tlhahlobo ea Lik'hemik'hale | Netefatsa ho latela melao (meeli ea C, Mn, P, S) |
| Poleiti | Teko ea ho Tenyetseha | Netefatsa chai ≥ 345 MPa, ho thapolla ≥ 485 MPa |
| Ts'ebetsong | Tekanyo (OD, Boima) | Netefatsa hore melao e lateloa |
| Sehokelo sa ho weld | Teko ea Ultrasonic (100% bakeng sa meaho ea bohlokoa, sebaka bakeng sa kakaretso) | Lemoha liphoso tsa ho tjheseletsa |
| Sehokelo sa ho weld | Teko ea X-ray (sebaka - 5-10% ha moreki a kopa) | Boleng ba ho weld |
| Sehokelo sa ho weld | Tlhahlobo ea Likaroloana tsa Magnetic (ha ho hlokahale) | Ho lemoha mapetso a bokaholimo |
| Phaephe e felileng | Teko ea ho Batalatsa (e hlokahala ho latela ASTM A500) | 'Mele oa phaephe le ho tjheseletsa ha weld |
| Phaephe e felileng | Teko ea ho Koba e Tataisoang (ho tjheseletsa) | Ho ductility ea ho tjheseletsa |
| Phaephe e felileng | Pono le Tekanyo | Bokaholimo, ho otloloha, ho tšoaea |
Bakeng sa ASTM A500, teko ea ho batalatsa e ea hlokahala: karolo ea phaephe e batalatsoa ho fihlela ho 1/3 ea bophara ba pele (kapa ho tjheseletsa haeba tjheseletsa e le boemong ba 90°). Ha hoa lumelloa mapetso kapa likheo.
8. Likopo tsa Motheo - Pipe ea Tšepe ea LSAW ea ASTM A500 Kereiti ea C
●Meaho ea likholomo– Litho tse otlolohileng tsa meaho e melelele, litšiea tsa limela tsa indasteri
● Li-chord tsa truss tsa borokho le li-diagonal– Marokho a Arch, marokho a truss, marokho a ba tsamaeang ka maoto
● Maoto a tora ea phetisetso– Maoto a tora a lattice (leoto le nang le di-tube), metheo ya monopole
● Crane e letsa le ho letsa li-outrigger– Litho tsa meaho ea kreine e tsamaeang, lipeipi tsa kreine ea tora
● Lithapo tsa marulelo a lebala la lipapali– Li-trus tse kholo tsa span, liforeimi tsa sebaka
● Di-module tse ka thoko ho lewatle– Maoto a tshehetsang deske, a tshehetswang hodima dipolatefomo tsa oli/khase
● Litšehetso tsa sethala sa indasteri– Liraka tsa liphaephe, litšehetso tsa lisebelisoa, litšiea tsa mezzanine
● Lipalo tsa matšoao le mabone– Lipalo tse chitja tse bophara bo boholo bakeng sa litsela tse kholo le mabala a lipapali
● Liforeimi tsa lisebelisoa tse boima– Litho tsa meaho ea lisebelisoa tsa merafo
● Ho tšehetsa litho ka liforeimi tsa sebopeho– Tšehetso e otlolohileng bakeng sa ho hanyetsa ho sisinyeha ha lefatše
9. Pakete le Thomello – ASTM A500 Kereiti ya C LSAW Steel Pipe
Sephutheloana:
● Bophara bo bonyenyane (≤ 610mm): E tlamiloe ka maqhama a tšepe (lithane tse 5-10 ka sephutheloana) ka litšireletso tse ka thoko
● Bophara bo boholo (> 610mm): Liphaephe tse ikemetseng tse nang le lepolanka la letsopa
● Liphaephe tse pepesitsoeng tsa meralo: Li phuthetsoe ka filimi ea polasetiki ho sireletsa pente ea primer
● Likoahelo tsa ho qetela: Likoahelo tsa polasetiki ho thibela ho kena ha lithōle (haeba ho hlokahala bakeng sa ho qeta)
Ho tsamaisa ka sekepe:
● Lijana tsa bophara bo bonyenyane le bolelele bo bokhutšoanyane (≤ 12m)
● Meqomo e robehileng bakeng sa bophara bo boholo (> 1,000mm) le lebota le boima
● Liraka tse bataletseng bakeng sa liphaephe tse telele haholo (ho fihlela ho 24m)
● Terene kapa teraka bakeng sa ho isa thepa ka hare ho naha
Litokomane:Setifikeiti sa Teko ea Mill (EN 10204 Mofuta oa 3.1), tlaleho ea litekanyo, tlaleho ea UT (haeba e boletsoe), tlaleho ea teko e batalatsang, lethathamo la liphutheloana, invoice ea khoebo, COO.
10. Melemo le Lipotso Tse Botsoang Khafetsa ka Tšepe ea Womic - Pipe ea Tšepe ea LSAW ea ASTM A500 Kereiti ea C
Hobaneng Tšepe ea Womic bakeng sa ASTM A500 Kereiti ea C?
● Bophara bo boholo ho fihlela ho 2,500mm (98″) – bo loketse likholomo tse boima le li-monopole tsa phetisetso
● Lebota le boima ho fihlela ho 80mm – bakeng sa litho tsa mohaho tse nang le mojaro o moholo
● Khetho ea ho sila ka weld bakeng sa tšepe ea meralo e pepesitsoeng
● Ho roala ka primer le ho kenya galvanizing e chesang hoa fumaneha
● Tlhahlobo ea motho oa boraro (SGS, BV, TÜV) ea amoheloa
● Litheko tse qothisanang lehlokoa bakeng sa merero ea meralo ea motheo e meholo
Lipotso Tse Botsoang Khafetsa:
P: Phapang ke efe pakeng tsa ASTM A500 Kereiti ya C le ASTM A53 GR.B bakeng sa phaephe ya sebopeho?
A: Sehlopha sa C se na le matla a phahameng haholo: chai ea 345 MPa khahlanong le 240 MPa bakeng sa A53. Sehlopha sa C se boetse se na le mamello e thata 'me se hloka teko ea ho batalatsa. Bakeng sa likholomo le li-trusses tse jarang mojaro, Sehlopha sa C sea khethoa. A53 GR.B e amoheleha bakeng sa litho tsa bobeli le meaho e seng ea bohlokoa.
P: Na ASTM A500 e hloka teko ea tšusumetso (Charpy)?
K: Tjhe. ASTM A500 ha e laele teko ya tshusumetso ya Charpy. Leha ho le jwalo, bakeng sa ditshebediso tsa mocheso o tlase (mohlala, Arctic, dikhoutu tse ding tsa borokho), baenjiniere ba ka eketsa ditlhoko tse eketsehileng. Womic e ka fana ka teko ya tshusumetso ya Charpy ka ditjeo tse ding (hangata ho 0°C kapa -20°C) haeba ho boletswe.
P: Na o ka fana ka A500 Grade C ka galvanizing e chesang bakeng sa tshebediso ya kantle?
K: E. Re fana ka galvanizing e chesang ho latela ASTM A123. Bolelele bo phahameng ka ho fetisisa bakeng sa bate ea rona ea galvanizing ke 12.5m. Bakeng sa liphaephe tse telele, re ka hlophisa galvanizing ea likarolo kapa ra sebelisa pente e 'ngoe (epoxy e nang le zinki e ngata). Ka kopo hlalosa litlhoko tsa bolelele ba hau.
P: Bolelele bo boholo boo o ka bo hlahisang bakeng sa phaephe ya A500 Grade C LSAW ke bofe?
K: Bolelele bo tloaelehileng ba bolelele ke 18m (JCOE) kapa 24m (UOE) bakeng sa bophara ba ≤ 1,220mm. Bakeng sa bophara bo boholo (poleiti e phutholohileng), bolelele bo boholo hangata ke 12-18m ka lebaka la meeli ea boholo ba poleiti. Bakeng sa bolelele bo fetang 18m, re ka tjheseletsa likarolo tse ngata ho tloha qalong ho isa qetellong (li-weld tsa SAW tse potolohang). Ikopanye le rona ka litlhoko tsa hau tse ikhethileng.
P: Na le etsa tlhahlobo ea motho oa boraro bakeng sa liphaephe tsa A500 Grade C?
K: E. Re sebetsa le SGS, BV, TÜV, le mekhatlo e meng. Tlhahlobo e ka kenyelletsa pono le tekanyo, teko ea ho batalatsa, UT kapa RT ea li-weld, le tlhahlobo ea lik'hemik'hale/ho tensile. Re fana ka litifikeiti tsa EN 10204 Type 3.1 joalo ka maemo; Mofuta oa 3.2 o fumaneha ha o kopuoa.
P: Nako e tloaelehileng ea ho etella pele bakeng sa phaephe ea sebopeho sa A500 Grade C LSAW ke efe?
A: Nako e tloaelehileng ea ho etella pele: matsatsi a 30-45 bakeng sa boholo ba JCOE/UOE. Bakeng sa lebota le boima la poleiti e phutholohileng (> 50mm): matsatsi a 45-60. Bakeng sa ho kenya galvanizing ka ho chesa: eketsa libeke tse 1-2. Bakeng sa ho sila ka weld (qetello ea meralo): eketsa libeke tse 2.
Tšupiso ea Morero - Meaho ea Tora ea Phetisetso ea Lebala la Lipapali la Los Angeles (USA)
Naha:United States (Inglewood, California - Sebaka sa Lebala la Lipapali la SoFi)
Maemo le Kereiti:ASTM A500 Kereiti C (ka tshusumetso e eketsehileng ya Charpy ho 0°C)
Litekanyo le Bongata:
OD 610mm (24″) × Boima 16.0mm – limithara tse 2,400 (hoo e ka bang lithane tse 560) e entsoeng ka ts'ebetso ea UOE
OD 813mm (32″) × Boima 20.0mm – limithara tse 1,800 (hoo e ka bang lithane tse 700) e entsoeng ke ts'ebetso ea JCOE
OD 1,016mm (40″) × Boima 25.0mm – 900 metres (hoo e ka bang lithane tse 550) e entsoeng ka seam e le 'ngoe ea poleiti e phutholohileng
OD 1,220mm (48″) × Boima 30.0mm – limithara tse 600 (hoo e ka bang lithane tse 530) e entsoeng ka seam e le 'ngoe ea poleiti e phutholohileng
Kakaretso:Limithara tse 5,700 (5.7 km), hoo e ka bang lithane tse 2,340
Litlhaloso:Lipheletso tse se nang letho tse nang le chamfer (bakeng sa ho tjheseletsa mokokotlo), li-weld caps tse qhibilihisitsoeng fatše (tlhoko ea sebopeho e pepesitsoeng), sekoahelo sa primer sa epoxy se nang le zinc e ngata (60 microns). Teko ea ho batalla e tlamang (ha ho mapetso a ho batalla bophara ba 1/3). Teko ea ho kobeha e tataisoang bakeng sa ho tsitsa ha weld. 100% UT ea weld seam. Tšusumetso ea Charpy ho 0°C (min 27J, e fihlelletsoe ho 60-90J). Ho otloloha ≤ 0.15% (e thata ho feta tekanyetso ea A500). Tlhahlobo ea motho oa boraro ke SGS USA.
Kopo:Meaho ea litora tsa phetiso e khabisitsoeng le e sebetsang e potolohileng Lebala la Lipapali la SoFi le nts'etsopele ea Hollywood Park Los Angeles. Liphaephe tsa LSAW li sebetsa e le litšiea tse ka sehloohong tse otlolohileng le tšehetso e otlolohileng bakeng sa litora tse kholo tsa phetiso tse "super" tsa meralo (tse ka bang bolelele ba limithara tse 60) tse tšehetsang matšoao, mabone, 'me hape li sebetsa e le matšoao a meralo. Morero o ne o hloka tšepe e pepeneneng e nang le qetello e boreleli ea weld le ponahalo e ts'oanang.
Liphephetso tsa Tekheniki le Litharollo:
● Tšepe e pepesitsoeng ea meralo - ho sila le ho qeta ka weld– Litora lia bonahala ho tloha lebaleng la lipapali le libakeng tse haufi. Womic e entse ho sila ka weld ka boiketsetso ebe e phethoa ka letsoho ho fihlela bokaholimo bo boreleli (Ra ≤ 6.3μm). Re boetse ra sebelisa pente ea primer e tšoanang (epoxy e nang le zinc e ngata, 'mala o moputsoa o bobebe o boletsoeng ke setsebi sa meralo). Phaephe e 'ngoe le e 'ngoe e ile ea hlahlojoa bakeng sa ho boreleli ha weld ke sehlopha sa QA sa moreki.
● Litlhoko tsa sebaka sa litšisinyeho tsa lefatše – ho ba bonolo ho sebetsa le ho tiea ha sona– Los Angeles e ho Sehlopha sa D sa Moralo oa Litšisinyeho tsa Lefatše (kotsi e phahameng ea litšisinyeho tsa lefatše). ASTM A500 Kereiti ea C hangata ha e hloke liteko tsa tšusumetso. Moenjiniere oa meaho o ekelitse tlhoko ea tšusumetso ea Charpy ea 27J ho 0°C. Lipoleiti tse khethiloeng tsa Womic tse nang le khabone e laoloang (0.20-0.22%) le manganese (1.15-1.25%) 'me li fihletse 60-90J ho 0°C, e leng se fetang tlhoko.
●Likarolo tse kholo tse nang le bophara bo fokolang– Maoto a mang a tora a ne a tenyetsehile (a bōpehile joaloka khoune). Womic e ile ea fana ka liphaephe tse otlolohileng tse ileng tsa etsoa ke rakonteraka likarolong tse tenyetsehileng. Re fane ka taolo e tiileng ea ovality (≤ 0.5%) ho nolofatsa ts'ebetso ea ho tenyetseha. Liphaephe li ne li tšoailoe ka mela e shebaneng le ho netefatsa ho tjheseletsa ho tsitsitseng.
●Sekoahelo sa pele bakeng sa tikoloho ea lebopong– Lebala la Lipapali la SoFi le bohōle ba lik'hilomithara tse 5 ho tloha Leoatleng la Pacific, 'me le pepesehetse ho fafatsa letsoai. Setlolo sa epoxy se nang le zinc e ngata (li-micron tse 60) se ile sa sebelisoa liphaepheng tsohle. Sekoahelo se fetile teko ea ho fafatsa letsoai ea lihora tse 1,000 (ASTM B117) ka ho kheloha ha 2mm ho tsoa ho scribe. Ho lemoha matsatsi a phomolo ho 2kV ntle le ho hloleha le ho hang.
●Thepa ea thepa ho ea sebakeng se sebetsang sa kaho– Ntlafatso ea Hollywood Park ke e 'ngoe ea merero e meholo ka ho fetisisa ea kaho ea litoropo US. Ho ne ho hlokahala hore ho tsamaisoe lithane tse 2,340 tsa liphaephe tse bophara bo boholo. Womic e ile ea tlisa liphaephe ka thepa e 6 nakong ea likhoeli tse 8, e 'ngoe le e 'ngoe e reretsoe ho fihla pele ho ho kenngoa. Liphaephe li ile tsa romeloa ho tloha Shanghai ho ea Koung ea Los Angeles, eaba li tsamaisoa ka literaka lik'hilomithara tse 8 ho ea sebakeng seo. Re sebelisitse lijana tse bataletseng tsa rack bakeng sa liphaephe tsa 1,016mm le 1,220mm ho qoba tšenyo.
●Litlhoko tsa US Buy America– Morero o ne o hloka ho ntshwa ha tshepe ya dinaha tse ding hobane difeme tsa lehae tsa Amerika di ne di sa kgone ho hlahisa bophara bo boholo (1,220mm) ka botenya bo hlokahalang ba lebota ka hara kemiso. Womic e fane ka ditokomane tse felletseng ho kenyeletswa le disetifikeiti tsa feme, naha eo e tswang ho yona, le ho sala morao ha thepa. Ho ntshwa ha tshepe ho ile ha dumellwa ke mong'a yona.
●Sephetho:Meaho ea tora ea phetisetso e phethiloe ka 2022. E se e le tšobotsi e tsebahalang ea moaho oa SoFi Stadium. Rakonteraka o tlalehile hore liphaephe tsohle tsa LSAW li lekana hantle ntle le ho lokisoa bocha. Qetello ea tšepe e pepeneneng e ile ea rorisoa ke setsebi sa meralo. Ho tloha ka nako eo, Womic Steel e mengoa ho etsa kopo ea merero e meng ea tšepe ea meralo ea meaho US.
Ikopanye le rona:
Webosaete: www.womicsteel.com
Imeile: sales@womicsteel.com
Mohala / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Tšepe ea Womic – Molekane oa hau ea tšepahalang bakeng sa liphaephe tsa tšepe tsa ASTM A500 Grade C LSAW bakeng sa ho haha litšiea, lithapo tsa borokho, litora tsa phetisetso, le lits'ebetso tse boima tsa meaho lefatšeng ka bophara.
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