1. I-Womic Steel: Amandla okuvelisa kunye namandla enkampani
I-Womic Steel Group isebenzisa imigca emininzi yemveliso ye-LSAW ekwaziyo ukuvelisa iipayipi zesakhiwo ze-ASTM A500 Grade C. I-A500 Grade C yityhubhu yesakhiwo sentsimbi yekhabhoni edityanisiweyo eyenziwe ngokubandayo (“i-cold formed” ibhekisa kubushushu bokwenza, hayi unyango lobushushu emva kokuwelda). Inkqubo ye-LSAW ifanelekile kwiindawo zesakhiwo ezijikelezileyo ezinobubanzi obukhulu ngaphaya komthamo we-ERW okanye ii-mills ezingenamthungo.
●Umgca we-JCOE:Kwiidayamitha ezingama-406mm – 1,422mm (16″–56″), ubukhulu bodonga bufikelela kwi-50.8mm. Ifanelekile kwiikholamu zokwakha kunye namalungu ebhulorho.
● Umgca we-UOE:Kwi-diameters ezingama-508mm – 1,220mm (20″–48″), ubukhulu bodonga bufikelela kwi-40mm. Ivelisa ukujikeleza okuphezulu kwintsimbi yoyilo ebonakalayo.
● Ipleyiti Eqengqelekayo (Umthungo Omnye):Kwimithamo engama-600mm – 2,500mm (24″–98″), ubukhulu bodonga buqala kwi-25mm ukuya kwi-80mm. Ilungele iintsika zodonga ezinzima kunye nemilenze yenqaba yokudlulisela.
● Ipleyiti Eqengqelekayo (I-Double Seam):Kwiidayamitha eziyi-1,200mm – 2,500mm (48″–98″), ubukhulu bodonga bufikelela kwi-80mm.
Umthamo we-LSAW uwonke udlula iitoni ezingama-300,000 ngonyaka, kunye nemveliso ye-A500 Grade C edlula iitoni ezingama-80,000 ngonyaka. I-Womic Steel ibamba i-ISO 9001, kwaye inokubonelela ngokuhlolwa ngumntu wesithathu yi-SGS, BV, TÜV. Amawaka eetoni ze-A500 Grade C zibonelelwe kwiiprojekthi zeziseko zophuhliso zase-US (iibhulorho, iinkundla zemidlalo, izityalo zoshishino).
Ukuguquguquka kwemveliso kwi-A500 Grade C:
I-JCOE: 406–1,422mm OD × 5.0–50.8mm Ubunzima × ≤ 18m
UOE: 508–1,220mm OD × 5.0–40.0mm Ubunzima × ≤ 24m
Ipleyiti eqengqekileyo (umthungo omnye): 600–2,500mm OD × 25–80mm Ubunzima × ≤ 18m
Ipleyiti eqengqekileyo (umthungo ophindwe kabini): 1,200–2,500mm OD × 25–80mm Ubunzima × ≤ 18m
Iipayipi zinokubonelelwa nge-primer coating (i-epoxy etyebileyo kwi-zinc, i-40-80 microns), engenanto (efakwe ioyile), okanye efakwe i-hot-dip galvanized.
2. I-ASTM A500 Ibanga C: Ukwakhiwa kwezinto kunye neempawu zokusebenza
I-ASTM A500 Grade C lolona didi luphezulu lwamandla kwiinkcukacha ze-A500 zeetyhubhu zesakhiwo sentsimbi yekhabhoni edityanisiweyo ebandayo. Amandla amancinci okuvelisa yi-345 MPa (50,000 psi) kunye namandla okusebenzisa i-485 MPa (70,300 psi). Inamandla angama-25% kuneGrade B (isivuno yi-290 MPa, i-tensile yi-400 MPa). IGrade C idla ngokuchazwa kwizicelo zesakhiwo ezithwala umthwalo onzima.
Ulwakhiwo lweeKhemikhali (ubuninzi be-% ngobunzima – i-ASTM A500 ayimiseli mida ingqongqo, kodwa imisela uluhlu oluqhelekileyo):
| I-elementi | I-ASTM A500 Ibanga C (uluhlu oluqhelekileyo) | Ulawulo lwabasetyhini |
| C | Ubuninzi obuyi-0.23 (ngokuqhelekileyo yi-0.20-0.23) | 0.20-0.23 |
| Mn | 1.35 ubuninzi (ngokuqhelekileyo 1.10-1.30) | 1.15-1.30 |
| P | Ubuninzi obuyi-0.035 | ≤ 0.030 |
| S | Ubuninzi obuyi-0.035 | ≤ 0.025 |
| Si | 0.30 ubuninzi (ngokuqhelekileyo) | 0.15-0.30 |
Iipropati zoomatshini (Ubushushu begumbi):
| Ipropati | I-ASTM A500 Ibanga C |
| Amandla okuvelisa (umzuzu) kwiityhubhu ezijikelezileyo | I-345 MPa (50,000 psi) |
| Amandla okuThamba (umzuzu) | I-485 MPa (70,300 psi) |
| Ukwandiswa (umzuzu) kweetyhubhu ezijikelezileyo – igeyiji engama-50mm | 21% |
| Ukwandiswa (umzuzu) kweetyhubhu ezijikelezileyo – igeyiji engama-200mm | 13% |
Ukuthelekiswa ne-A500 Grade B kunye ne-A53 GR.B:
| Ibanga | I-MPa yemveliso | I-MPa ethambileyo | Isicelo esiqhelekileyo |
| I-ASTM A53 GR.B | 240 | 415 | Ulwakhiwo ngokubanzi, amandla aphantsi |
| I-ASTM A500 Ibanga B | 290 | 400 | Ulwakhiwo olunamandla aphakathi |
| I-ASTM A500 Ibanga C | 345 | 485 | Amandla aphezulu okwakha, imithwalo enzima |
Amandla aphezulu eBanga C avumela iindonga ezincinci okanye amandla aphezulu okuthwala umthwalo xa kuthelekiswa neBanga B.
3. Ukuthobela uLuhlu lweeDimensional kunye neMigangatho
| Into | Inkcazo |
| Umgangatho | I-ASTM A500 Ibanga B, Ibanga C |
| Iinkqubo zoMveliso | I-JCOE, i-UOE, ipleyiti eqengqekileyo (umthungo omnye/ophindwe kabini) |
| Uluhlu lweDayamitha yangaphandle | 219mm – 2,500mm (8″ – 98″) |
| Uluhlu Lobukhulu Bodonga | I-JCOE/UOE: 5.0mm – 50.8mm; Ipleyiti eqengqekileyo: 25mm – 80mm |
| Uluhlu lobude | Umgangatho: 6m, 12m, 18m; Ububanzi: ukuya kuthi ga kwi-24m |
| Isiphelo Sokugqiba | Isiphelo esicacileyo (PE), Isiphelo esibekiweyo (BE), okanye isikwere esisikiweyo |
| Umphezulu Ukugqiba | Ayinawo amafutha, Imnyama, Igqunywe ngeprimer, Ifakwe nge-hot-dip galvanized |
| Ukunyamezelana (ASTM A500) | I-OD: ±0.5% yokuchaneka; Ubunzima: ±10%; Ubude: ±25mm (kwiindlela ezinqunqiweyo) |
| Ukuthe tye | ≤ 0.2% yobude |
| Ukungaguquguquki | ≤ 2% (umgangatho wesakhiwo) |
Ukunyamezelana kwe-ASTM A500 akunangqongqo kangako kune-API 5L, nto leyo eyenza imveliso ye-LSAW enobubanzi obukhulu ibe yeyongayo kwizicelo zesakhiwo.
4. Ubukhulu kunye neenkcukacha ezikhoyo – Umbhobho wentsimbi we-ASTM A500 Grade C LSAW (Ubungakanani obuqhelekileyo obukhethiweyo)
| OD (mm) | Iinketho ze-WT (mm) | Inkqubo | Ubunzima obumalunga (kg/m2) | Ubude obuqhelekileyo | Isicelo esiqhelekileyo |
| 219 | 5.0, 6.0, 8.0, 10.0, 12.5 | I-JCOE | 26.4 – 63.6 | 12m | Ikholamu yokwakha |
| 273 | 6.0, 8.0, 10.0, 12.5, 14.0 | I-JCOE | 39.5 – 89.4 | 12m / 18m | I-Bridge chord |
| 324 | 8.0, 10.0, 12.5, 14.0, 16.0 | I-JCOE | 62.4 – 121.5 | 12m / 18m | Inqaba yokudlulisa |
| 406 | 8.0, 10.0, 12.5, 14.0, 16.0, 20.0 | JCOE/UOE | 78.5 – 190.4 | 12m / 18m | I-crane boom |
| 508 | 10.0, 12.5, 14.0, 16.0, 20.0, 25.0 | I-UOE | 122.8 – 297.8 | 12m / 18m / 24m | I-truss yenkundla yemidlalo |
| 610 | 12.5, 14.0, 16.0, 20.0, 25.0, 30.0 | I-UOE | 184.2 – 429.1 | 12m / 18m | Ikholamu enzima |
| 711 | 14.0, 16.0, 20.0, 25.0, 30.0, 35.0 | JCOE/UOE | 240.7 – 583.5 | 12m / 18m | Icala eliphezulu lolwandle |
| 813 | 16.0, 20.0, 25.0, 30.0, 35.0, 40.0 | I-JCOE | 314.4 – 762.7 | 12m / 18m | I-arch yebhulorho |
| 914 | 20.0, 25.0, 30.0, 35.0, 40.0, 45.0 | I-JCOE/Eqengqiweyo | 441.0 – 964.8 | 12m / 18m | Isakhelo sezoshishino |
| 1,016 | 20.0, 25.0, 30.0, 35.0, 40.0, 50.0 | Iqengqiwe | 491.3 – 1,191.7 | 12m | I-monopole yokudlulisa |
| 1,220 | 25.0, 30.0, 35.0, 40.0, 50.0, 60.0 | Iqengqiwe | 736.5 – 1,716.9 | 12m | Imizi-mveliso enzima |
| 1,422 | 30.0, 35.0, 40.0, 50.0, 60.0, 70.0 | Iqengqelekile (inye) | 1,030 – 2,335 | 12m | Isakhiwo esikhulu |
| 1,600 | 35.0, 40.0, 50.0, 60.0, 70.0, 80.0 | Iqengqelekile (kabini) | 1,350 – 3,000 | 12m | Iprojekthi ekhethekileyo |
| 2,000 | 40.0, 50.0, 60.0, 70.0, 80.0 | Iqengqelekile (kabini) | 1,933 – 3,784 | 12m | Uyilo lwezakhiwo |
| 2,500 | 50.0, 60.0, 70.0, 80.0 | Iqengqelekile (kabini) | 3,023 – 4,766 | 12m | Isikhumbuzo |
Kwizicelo zesakhiwo, ukunyamezelana kobukhulu akungqongqo kangako, nto leyo evumela imveliso engabizi kakhulu. Kwintsimbi yoyilo ebonakalayo, kucetyiswa ukugaya nge-weld kunye nokufaka i-primer coating.
5. Imigangatho Eqhelekileyo kunye namaBanga – Iityhubhu Ezijikelezileyo Zesakhiwo (LSAW)
| Umgangatho | Amanqanaba eNsimbi | Isicelo esiqhelekileyo | Inkqubo Yokwenza |
| I-ASTM A500 | Ibanga B, Ibanga C | Izakhiwo, iibhulorho, iinqaba | I-JCOE/UOE/Eqengqiweyo |
| I-ASTM A53 | GR.B | Ulwakhiwo ngokubanzi, amandla aphantsi | I-JCOE |
| I-ASTM A252 | Ibanga lesi-2, Ibanga lesi-3 | Ukupakishwa (kwakhona nolwakhiwo) | I-JCOE/Eqengqiweyo |
| EN 10219 | S355JRH, S355J2H | Ulwakhiwo lwaseYurophu | I-JCOE/Eqengqiweyo |
| I-CSA G40.21 | 350W, 350WT | Ulwakhiwo lwaseKhanada | I-JCOE |
| AS/NZS 1163 | C350L0, C450L0 | Ulwakhiwo lwase-Australia | I-JCOE |
Isishwankathelo sokusetyenziswa:Iikholamu zokwakha, amalungu eebhulorho, imilenze yenqaba yokudlulisela, ii-crane booms, ii-pair trusses zenkundla, iindawo eziphezulu zaselwandle, amaqonga emizi-mveliso.
6. Iinkqubo zoMveliso – i-LSAW ye-ASTM A500 Grade C Structural Pipe
Kwizicelo zesakhiwo, umgangatho we-weld kufuneka ube semgangathweni, kodwa ubuhle (iprofayili ye-weld egudileyo) ngamanye amaxesha kuyafuneka. Ukwandiswa koomatshini kuyinto yokuzikhethela.
Inkqubo ye-JCOE (406–1,422mm OD, 5.0–50.8mm WIT):
● Ukwenziwa kweJCO ngokulandelelana okuqhelekileyo
● Ukuwelda kwe-SAW yangaphakathi nangaphandle
● Ukwandiswa koomatshini (ukhetho – kuphucula ukujikeleza kwezakhiwo ezibonakalayo)
● Ukusila nge-weld kuyafumaneka (ukugqiba nge-flush kwintsimbi eveziweyo)
● Ifanelekile kwiindawo ezininzi zesakhiwo
Inkqubo ye-UOE (508–1,220mm OD, 5.0–40mm WIT):
● Cinezela u-U + Cinezela u-O ngokwandisa
● Ivelisa imibhobho engqukuva kakhulu - ilungele ukusetyenziswa kwezakhiwo ezivezwe ngaphandle
● I-weld geometry ehambelanayo
Ipleyiti Eqengqelekayo (Umthungo Omnye) woDonga Olunzima (600–2,500mm OD, 25–80mm WIT):
● Ukugoba okune-roll kwi-cylinder
● Ukuwelda kwe-SAW ende (udonga olunezinti ezininzi)
● Akukho kwandiswa – i-ovality ukuya kuthi ga kwi-1-2% yamkelekile kwisakhiwo
● Isetyenziselwa iintsika zodonga ezinzima kunye neekhowudi ze-truss ezinobubanzi obukhulu
Iindlela zokugqiba emva kokuwelda:
● Ukugaya nge-weld:Kwintsimbi evezwe ngobugcisa, siyayigaya i-weld cap flush.
● Ukwambathisa ngeprimer:I-primer ye-epoxy etyebileyo enezinki (40-80 microns) esemgangathweni wokukhusela ukugqwala.
● Ukucoca nge-hot-dip:Ukufakwa kwe-galvanizing epheleleyo yepayipi kuyafumaneka (ubude obuphezulu yi-12.5m).
7. Iinkqubo zoLawulo loMgangatho kunye noVavanyo lweMbhobho yeNsimbi ye-ASTM A500 Grade C LSAW
| Iqonga | Indlela yokuhlola | Injongo |
| Ipleyiti | Uhlalutyo lweeKhemikhali | Qinisekisa ukuthotyelwa kwemithetho (imida ye-C, Mn, P, S) |
| Ipleyiti | Uvavanyo lokuThatha | Qinisekisa isivuno ≥ 345 MPa, ukutsalwa ≥ 485 MPa |
| Kwinkqubo | Imilinganiselo (OD, WT) | Qinisekisa ukuthotyelwa kwemithetho |
| Umthungo wokuwelda | Uvavanyo lwe-Ultrasonic (100% kwizakhiwo ezibalulekileyo, indawo ngokubanzi) | Fumanisa iziphene zokuwelda |
| Umthungo wokuwelda | Uvavanyo lwe-X-ray (indawo leyo – 5-10% xa umthengi ecela) | Umgangatho wokuwelda |
| Umthungo wokuwelda | Ukuhlolwa kweMagnetic Particle (ukhetho) | Ukufunyanwa kweentanda zomphezulu |
| Umbhobho ogqityiweyo | Uvavanyo lokuThabatha (lufuneka ngokwe-ASTM A500) | Umzimba wepayipi kunye nokuqina kwe-weld |
| Umbhobho ogqityiweyo | Uvavanyo lwe-Gond oluQondisiweyo (i-weld) | Ukuqina kwe-Weld |
| Umbhobho ogqityiweyo | Okubonakalayo kunye nobukhulu | Umphezulu, ukuthe tye, ukumakisha |
Kwi-ASTM A500, uvavanyo lokuthamba luyimfuneko: icandelo lombhobho liyathambathiswa libe yi-1/3 yobubanzi bokuqala (okanye ukuthambathiswa ukuba ukuthamba kukwindawo engama-90°). Akukho mifantu okanye ukuqhekeka kuvumelekileyo.
8. Izicelo eziphambili – Umbhobho wentsimbi we-ASTM A500 Grade C LSAW
●Ukwakha iikholamu– Amalungu amile okwesakhiwo esiphakamileyo, iikholamu zezityalo zoshishino
● Iikhowudi zebhulorho kunye nee-diagonals– Iibhulorho zeArch, iibhulorho zeTruss, iibhulorho zabahambi ngeenyawo
● Imilenze yenqaba yokudlulisela– Imilenze yenqaba yeLattice (umlenze wekona onemibhobho), iziseko ze-monopole
● Iicrane ziyadubula kwaye zikhupha ii-outriggers– Amalungu olwakhiwo lwekreyini ehambayo, iimasti zekreyini yenqaba
● Iitrasi zophahla lwenkundla yezemidlalo– Ii-trus ezinkulu ezibanzi, izakhelo zesithuba
● Iimodyuli ezikwicala elingaphezulu lolwandle– Imilenze exhasa idekhi, ixhaswe ngamaqonga eoyile/egesi
● Inkxaso yeqonga lemizi-mveliso– Iirakhi zemibhobho, izixhobo ezixhasayo, iikholamu ze-mezzanine
● Izibonda zezibane kunye nezibane– Iipali ezinkulu eziziingxande ezinobubanzi beendlela ezinkulu kunye neenkundla zemidlalo
● Iifreyimu zezixhobo ezinzima– Amalungu ezakhiwo zezixhobo zokumba
● Ukuqinisa amalungu kwizakhelo zesakhiwo– Ukuxhasa nge-diagonal ukumelana ne-seismic
9. Ukupakishwa kunye nokuthunyelwa – Umbhobho wentsimbi we-ASTM A500 Grade C LSAW
Ukupakisha:
● Ububanzi obuncinci (≤ 610mm): Ihlanganiswe ngeentambo zentsimbi (iitoni ezi-5-10 ngephakheji nganye) kunye nezikhuseli ezisemaphethelweni
● Ububanzi obukhulu (> 610mm): Imibhobho nganye ene-dunnage yomthi
● Imibhobho evezwe ngoyilo: Isongelwe ngeplastiki ukuze ikhusele uqweqwe lweprimer
● Izigqubuthelo zokugqibela: Izigqubuthelo zeplastiki zokuthintela ukungena kwenkunkuma (ukuba kuyimfuneko ukuze igqitywe)
Ukuhambisa ngenqanawe:
● Izikhongozeli zeedayamitha ezincinci kunye nobude obufutshane (≤ 12m)
● Iinqanawa eziqhekezayo ezinobubanzi obukhulu (> 1,000mm) kunye nodonga olunzima
● Iirakhi ezisicaba zeepayipi ezinde kakhulu (ukuya kuthi ga kwi-24m)
● Uloliwe okanye ilori yokuhambisa impahla ngaphakathi elizweni
Amaxwebhu:Isatifikethi sovavanyo lweMill (EN 10204 Uhlobo 3.1), ingxelo enomlinganiselo, ingxelo ye-UT (ukuba ichaziwe), ingxelo yovavanyo olucwangcisiweyo, uluhlu lokupakisha, i-invoyisi yorhwebo, i-COO.
10. Iingenelo zeWomic Steel kunye neFAQ - Ipayipi yentsimbi ye-ASTM A500 Grade C LSAW
Kutheni iWomic Steel isetyenziselwa i-ASTM A500 Grade C?
● Ububanzi obukhulu ukuya kuthi ga kwi-2,500mm (98″) – bufanelekile kwiikholamu ezinzima kunye nee-monopoles zokudlulisela
● Udonga olunzima olufikelela kwi-80mm – lwamalungu esakhiwo anomthwalo omninzi
● Ukhetho lokusila nge-weld kwintsimbi yoyilo ebonakalayo
● I-primer coating kunye ne-hot-dip galvanizing ziyafumaneka
● Uhlolo lomntu wesithathu (SGS, BV, TÜV) lwamkelwe
● Amaxabiso akhuphisanayo kwiiprojekthi ezinkulu zeziseko zophuhliso
Imibuzo ebuzwa qho:
Q: Yintoni umahluko phakathi kwe-ASTM A500 Grade C kunye ne-ASTM A53 GR.B kwipayipi yolwakhiwo?
A: Ibanga C linamandla aphezulu kakhulu: i-345 MPa yield vs 240 MPa kwi-A53. Ibanga C likwanokumelana okuqinileyo kwaye lifuna uvavanyo lokuthamba. Kwiikholamu kunye nee-trusses ezithwala umthwalo, iBanga C likhethwa. I-A53 GR.B iyamkeleka kumalungu esibini kunye nezakhiwo ezingezizo ezibalulekileyo.
Q: Ingaba i-ASTM A500 ifuna uvavanyo lwempembelelo (iCharpy)?
A: Hayi. I-ASTM A500 ayigunyazisi uvavanyo lwempembelelo yeCharpy. Nangona kunjalo, kwiisicelo zobushushu obuphantsi (umz., iArctic, ezinye iikhowudi zebhulorho), iinjineli zinokongeza iimfuno ezongezelelweyo. I-Womic inokubonelela ngovavanyo lwempembelelo yeCharpy ngexabiso elongezelelweyo (ngesiqhelo kwi-0°C okanye -20°C) ukuba kuchaziwe.
Q: Ngaba ungabonelela nge-A500 Grade C nge-hot-dip galvanizing ukuze isetyenziswe ngaphandle?
A: Ewe. Sinikezela nge-hot-dip galvanizing ngokwe-ASTM A123. Ubude obuphezulu bebhafu yethu ye-galvanizing yi-12.5m. Kwimibhobho emide, singacwangcisa i-sectional galvanizing okanye sisebenzise enye indlela yokugquma (i-epoxy etyebileyo kwi-zinc). Nceda ucacise iimfuno zakho zobude.
Q: Bungakanani ubude obuphezulu onokuthi ubuvelise kwipayipi ye-A500 Grade C LSAW?
A: Ubude obuqhelekileyo obuphezulu yi-18m (JCOE) okanye i-24m (UOE) kwiidayamitha ≤ 1,220mm. Kwiidayamitha ezinkulu (ipleyiti eqengqelekayo), ubude obuphezulu buhlala buyi-12-18m ngenxa yobungakanani bepleyiti. Kwiide ezingaphaya kwe-18m, singazitshixa iinxalenye ezininzi ukusuka ekuqaleni ukuya ekupheleni (ii-circumferential SAW welds). Nxibelelana nathi ngeemfuno zakho ezithile.
Q: Ngaba nibonelela ngovavanyo lwesithathu lwemibhobho ye-A500 Grade C?
A: Ewe. Sisebenza ne-SGS, i-BV, i-TÜV, kunye nezinye iiarhente. Uvavanyo lungabandakanya uvavanyo olubonakalayo nolunemilinganiselo, uvavanyo lokuthamba, uvavanyo lwe-UT okanye lwe-RT lwe-welds, kunye novavanyo lweekhemikhali/lokutsalwa. Sikhupha izatifikethi ze-EN 10204 Type 3.1 njengomgangatho; Uhlobo lwe-3.2 luyafumaneka xa luceliwe.
Q: Lingakanani ixesha eliqhelekileyo lokuqalisa umbhobho wolwakhiwo we-A500 Grade C LSAW?
A: Ixesha eliqhelekileyo lokuqalisa: iintsuku ezingama-30-45 zobukhulu be-JCOE/UOE. Kwipleyiti eqengqelekayo eludongeni olunzima (> 50mm): iintsuku ezingama-45-60. Kwi-hot-dip galvanizing: yongeza iiveki ezi-1-2. Kwi-weld grinding (ukugqitywa koyilo): yongeza iiveki ezi-2.
Isalathiso seProjekthi – Izakhiwo zeTransmission Tower zeLos Angeles Stadium (e-USA)
Ilizwe:I-United States (e-Inglewood, eCalifornia – indawo yeSoFi Stadium)
Imigangatho kunye neBanga:I-ASTM A500 Grade C (enefuthe elongezelelweyo leCharpy kwi-0°C)
Ubukhulu kunye nobungakanani:
OD 610mm (24″) × Ubunzima 16.0mm – 2,400 metres (malunga neetoni ezingama-560) ezenziwe ngenkqubo ye-UOE
OD 813mm (32″) × Ubunzima 20.0mm – 1,800 yeemitha (malunga neetoni ezingama-700) ezenziwe yinkqubo ye-JCOE
OD 1,016mm (40″) × Ubunzima 25.0mm – 900 yeemitha (malunga neetoni ezingama-550) ezenziwe ngepleyiti egoqiweyo enye
OD 1,220mm (48″) × Ubunzima 30.0mm – 600 metres (malunga neetoni ezingama-530) ezenziwe ngepleyiti egoqiweyo enye
Isimbuku:Iimitha ezingama-5,700 (5.7 km), malunga neetoni ezingama-2,340
Iinkcukacha:Iziphelo ezingenanto ezine-chamfer (yokushisela i-butt), ii-weld caps ground flush (imfuneko yesakhiwo eveziweyo), i-epoxy primer coating etyebileyo kwi-zinc (ii-microns ezingama-60). Uvavanyo lokutyibilika oluyimfuneko (akukho mifantu kwi-1/3 diameter flattening). Uvavanyo lokugoba olukhokelwayo lokuqina kwe-weld. I-100% UT yomthungo we-weld. Impembelelo yeCharpy kwi-0°C (min 27J, ifikelelwe kwi-60-90J). Ukuthe tye ≤ 0.15% (kungqongqo kunomgangatho we-A500). Uhlolo lomntu wesithathu yi-SGS USA.
Isicelo:Izakhiwo zenqaba yokuhambisa ezihonjisiweyo nezisebenzayo ezijikeleze iSoFi Stadium kunye nophuhliso lweHollywood Park eLos Angeles. Iipayipi ze-LSAW zisebenza njengeentsika eziphambili ezithe nkqo kunye nokuxhasa okuthe tyaba kwiinqaba ezinkulu zokuhambisa "ezinkulu" zokwakha (malunga ne-60m ukuphakama) ezixhasa imiqondiso, ukukhanya, kwaye zikwasebenza njengeempawu zobugcisa bokwakha. Le projekthi ifune intsimbi evulekileyo enesiphelo esigudileyo se-weld kunye nembonakalo efanayo.
Imingeni yoBugcisa kunye neZisombululo:
● Intsimbi evezwe ngobugcisa – ukugaywa kunye nokugqitywa kokuwelda– Iinqaba ziyabonakala ukusuka kwibala lemidlalo nakwiindawo ezingqongileyo. I-Womic yenze ukugaywa kwe-weld okuzenzakalelayo kulandele ukugqitywa ngesandla ukuze kufunyanwe umphezulu ogudileyo (Ra ≤ 6.3μm). Sikwafake ne-primer coating efanayo (i-epoxy etyebileyo ye-zinc, umbala ongwevu okhanyayo ochazwe ngumyili wezakhiwo). Umbhobho ngamnye uhlolwe ukuba uthambile na yiqela le-QA lomthengi.
● Iimfuneko zendawo yenyikima – ukuqina kwayo kunye nokuqina kwayo– ILos Angeles ikwiCandelo D loYilo lweSeismic (umngcipheko ophezulu we-seismic). I-ASTM A500 Grade C ngokwesiqhelo ayifuni vavanyo lwempembelelo. Injineli yolwakhiwo yongeze imfuneko yempembelelo yeCharpy ye-27J kwi-0°C. Iipleyiti zeWomic ezikhethiweyo ezinekhabhoni elawulwayo (0.20-0.22%) kunye ne-manganese (1.15-1.25%) kwaye zafikelela kwi-60-90J kwi-0°C, ngaphezulu kakhulu kwemfuneko.
●Amacandelo amakhulu anobubanzi obunciphileyo– Eminye imilenze yenqaba yayinciphile (imilo yekhowuni). I-Womic yanikezela ngemibhobho ethe tye eyathi emva koko yenziwa ngumakhi yaya kwiindawo ezinciphileyo. Sinikezele ngolawulo oluqinileyo lwe-ovality (≤ 0.5%) ukuze kube lula ukwenza inkqubo yokunciphisa. Imibhobho yayiphawulwe ngemigca yokuqondisa ukuqinisekisa ukuwelda okulinganayo.
●I-primer coating yokusingqongileyo konxweme– Ibala lemidlalo iSoFi likwiikhilomitha ezi-5 ukusuka kuLwandlekazi iPasifiki, apho ityuwa ingena khona. I-epoxy primer etyebileyo kwiZinc (60 microns) isetyenzisiwe kuzo zonke iipayipi. I-coating idlule uvavanyo lwe-salt spray lweeyure ezili-1,000 (ASTM B117) kunye nokuqhekeka okungaphantsi kwe-2mm ukusuka kwi-scribe. Ukufunyanwa kweholide kwi-2kV ngaphandle kokusilela.
●Uthutho oluya kwindawo yokwakha esebenzayo– Uphuhliso lweHollywood Park lolunye lwezona projekthi zinkulu zokwakha ezidolophini eMelika. Ukuhanjiswa kweetoni ezingama-2,340 zeepayipi ezinkulu kwakufuneka zicwangciswe ngokulandelelana. I-Womic yazisa iipayipi ngemithwalo emi-6 kwiinyanga ezi-8, nganye icwangciselwe ukufika ngaphambi kokufakwa. Iipayipi zathunyelwa ukusuka eShanghai ukuya ePort of Los Angeles, emva koko zathunyelwa ngelori kangangeekhilomitha ezi-8 ukuya kwindawo leyo. Sisebenzise izikhongozeli ze-flat rack kwiipayipi ze-1,016mm kunye ne-1,220mm ukunqanda umonakalo.
●Iimfuneko ze-US Buy America– Le projekthi ifune ukuxolelwa kwesinyithi sangaphandle kuba iifektri zasekhaya zaseMelika azikwazanga ukuvelisa ububanzi obukhulu (1,220mm) kubukhulu bodonga obufunekayo ngaphakathi kweshedyuli. I-Womic inikezele ngamaxwebhu apheleleyo kuquka iziqinisekiso zefektri, ilizwe elivela kulo, kunye nokulandeleka kwezinto. Ukuxolelwa kwavunywa ngumnini.
●Isiphumo:Izakhiwo zenqaba yokudlulisa umbane zagqitywa ngo-2022. Ziye zaba luphawu olubonakalayo lwesakhiwo seSoFi Stadium. Umenzi wekontraka uxele ukuba zonke iipayipi ze-LSAW zilingana ngokugqibeleleyo ngaphandle kokulungiswa kwakhona. Ukugqitywa kwentsimbi eveziweyo kwafumana udumo kumqambi wezakhiwo. I-Womic Steel ukususela ngoko imenyiwe ukuba ibhide kwiiprojekthi ezongezelelweyo zentsimbi yokwakha e-US.
Qhagamshelana:
Iwebhusayithi: www.womicsteel.com
I-imeyile: sales@womicsteel.com
Ucingo / WhatsApp / WeChat:
UVictor: +86 15575100681
UJack: +86 18390957568
I-Womic Steel – Iqabane lakho elithembekileyo lemibhobho yentsimbi ye-ASTM A500 Grade C LSAW yokwakha iintsika, iibhulorho, iinqaba zokuhambisa, kunye nokusetyenziswa kwezakhiwo ezinzima kwihlabathi liphela.
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