ASTM A252 Giredhi 3 LSAW Steel Pipe: Kugona Kugadzira & Magadzirirwo Echigadzirwa

Tsananguro pfupi:

Womic Steel inopa pombi yesimbi yeASTM A252 Giredhi 3 LSAW yepamusoro-soro yekuisa hwaro hwakadzika, zvivakwa zvemugungwa, nheyo dzemabhiriji, uye mapuratifomu ekunze. Giredhi 3 inopa simba rekukohwa risingasviki 345 MPa (50,000 psi) uye simba rekudhonza risingasviki 455 MPa (66,000 psi), zvichiita kuti ive giredhi repamusoro-soro muASTM A252 specification yekushandiswa kwekuisa mapuranga. Maitiro eLSAW anosanganisira nzira dzeJCOE, UOE, uye rolled plate welding, zvichipa musono wakatwasuka we longitudinal une kugadzikana kwakanaka uye hunhu hwemakanika hwakafanana pakureba kwepombi yese. Kune dhayamita hombe kana kuti madziro anorema (kusvika pakukora kwemadziro kwe100mm), Womic inoshandisa plate rolling uye multi-pass submerged arc welding. Dhayamita yekunze kubva pa219mm kusvika 3,500mm (8″ – 138″), ukobvu hwemadziro kubva pa6.0mm kusvika 100mm (zvichienderana nemaitiro), kureba kusvika pa60m. Chitupa chemugayo, bvunzo ye ultrasonic 100% (sarudzo ye weld seam ne body), magumo akachekwa kana asina kujeka, uye anti-corrosion coating (epoxy, coal tar, zinc) zviripo. Zvakakodzera ma piers emabhiriji, zvivakwa zve port ne harbor, nheyo dzezvivakwa dzakakwirira, maturu e wind turbine, marine fender systems, uye offshore platform jacket piles.

Saizi yepombi yesimbi yeLSAW:Dhayamita yekunze: 219mm – 3,500mm (8″ – 138″), Ukobvu hwemadziro: 6.0mm – 100mm (JCOE/UOE max 50.8mm, plate yakakungurutswa max 100mm), Kureba: 6m – 18m yakajairika, urefu hwakatarwa hunosvika 60m yemapombi marefu

Standard & Grade yeLSAW Steel Pipe:ASTM A252 Giredhi 1, Giredhi 2, Giredhi 3; zvakare API 5L GR.B kana X42 yekuunganidzira (kana zvakumbirwa); EN 10248 S355GP; EN 10219 S355JRH

Kushandiswa kweLSAW Steel Pipe:Mirwi yenheyo dzemabhiriji, mirwi yechiteshi nechiteshi chengarava, nheyo dzakadzika dzezvivakwa zvirefu, mirwi yejaketi repamhenderekedzo yegungwa, nheyo dzeshongwe dzemhepo, mirwi yekutsigira marine fender, cofferdams, masisitimu ekuchengetedza madziro, mirwi yekusimbisa ivhu, chiratidzo chemugwagwa mukuru uye nheyo dzemapango emwenje

Simbi yeWomic inopa mitengo yepamusoro uye inokwikwidzana yemapaipi esimbi eASTM A252 Grade 3 LSAW, mapaipi esimbi, mapaipi eJCOE, mapaipi emadziro anorema, mapaipi ane dhayamita hombe, mapaipi emapuranga akareba. Chitupa chemugayo, bvunzo yemvura, kuongororwa kweUT weld, magumo akachekwa/asina ngura, chifukidziro chekudzivirira ngura chiripo. Kuwanikwa kwefekitori zvakananga kune mainjiniya ehurumende, kuvaka kwegungwa, uye mapurojekiti ezvivakwa pasi rese.

Tumira email kwatiri Zvimiro zveChigadzirwa

Ruzivo rweChigadzirwa

Matagi eChigadzirwa

1. Simbi yeWomic: Kugona Kugadzira & Simba reKambani

Womic Steel Group inoshandisa mitsetse yakawanda yekugadzira yeLSAW yakagadzirirwa kushandiswa pakukomba madziro akaremara uye dhayamita hombe. Mapaipi eASTM A252 Grade 3 anoda ductility yakakura uye hunhu hwakafanana hwemakanika ekufambisa nhandare (hammering) pasina kutsemuka.

● Mutsetse weJCOE:Kune dhayamita 406mm – 1,422mm (16″–56″), ukobvu hwemadziro hunosvika 50.8mm. Yakakodzera mapombi emabhiriji nenheyo dzekuvaka.

●Mutsetse weUOE:Kune dhayamita 508mm – 1,220mm (20″–48″), ukobvu hwemadziro hunosvika 40mm. Inogadzira mirwi yakatenderera zvikuru kuti ikwanise kutenderedzwa zvakasimba.

●Purati Yakamoneredzwa (Musono Mumwe - Rusvingo Runorema):Kune dhayamita 600mm – 3,500mm (24″–138″), ukobvu hwemadziro hunobva pa25mm kusvika pa100mm. Plate imwe chete yakamonerwa uye yakasungirirwa kwenguva refu. Yakanakira mapombi makuru egungwa uye mapombi ejaketi rekunze kwenyika.

● Purati Yakamonerwa (Musono Wakaviri):Kune dhayamita 1,200mm – 3,500mm (48″–138″), ukobvu hwemadziro hunosvika 100mm. Misono miviri yakareba. Inoshandiswa pakuvaka mapombi makuru ehwaro hwegungwa.

Huwandu hwese hweLSAW hunopfuura matani 300,000 pagore, nekugadzirwa kwemapombi ekuisa mapillar kunodarika matani 120,000 pagore. Womic Steel ine ISO 9001, CE (EN 10219, EN 10248), uye inogona kupa kuongororwa kwevamwe neSGS, BV, ABS, DNV, uye TÜV. Mapombi ekuisa mapillar anodarika makiromita mazana mashanu anopihwa pasi rose kune zviteshi, mabhiriji, uye nheyo dzekunze.

Kuchinjika Kwekugadzira kweASTM A252 Giredhi 3:

●JCOE: 406–1,422mm OD × 6.0–50.8mm Uzito × ≤ 18m

●UOE: 508–1,220mm OD × 6.0–40.0mm Uzito × ≤ 24m

●Purati yakamonerwa (musono mumwe chete): 600–3,500mm OD × 25–100mm Uremu × ≤ 18m (kusvika 60m nekusanganisa zvikamu zvakawanda)

●Pureti yakamonerwa (musono wakakombama): 1,200–3,500mm OD × 25–100mm Uremu × ≤ 18m

Kune kureba kwakanyanya kusvika ku60m, Womic inogona kusundira zvikamu zvakawanda kubva kumagumo kusvika kumagumo ichishandisa ma welds anopinda mukati meSAW (100% UT inoongororwa). Mapombi aya marefu anoderedza ma splices emunda panguva yekuisa.

2. ASTM A252 Giredhi 3: Kuumbwa kwezvinhu & Hunhu hwekushanda

ASTM A252 Giredhi 3 ndiyo giredhi repamusoro-soro muA252 specification yemapombi esimbi akasungirirwa uye asina musono. Simba remubereko diki re345 MPa (50,000 psi) uye simba rekudhonza re455 MPa (66,000 psi). Kusiyana neAPI 5L, A252 haina PSL1/PSL2 classifications asi inoda ductility yakanaka (longation) uye weld soundness yekufambisa munhandare.

Kuumbwa kweMakemikoro (yakanyanya % nehuremu - zvakajairika paGiredhi 3, ASTM A252 haimanikidze miganhu yakatarwa):

Chinhu	Mhando Yakajairika (Simbi Yevakadzi)
C	0.20 – 0.26
Mn	0.80 – 1.30
P	≤ 0.030
S	≤ 0.030
Si	0.15 – 0.40
CEV	≤ 0.45 (yakajairika ≤ 0.42)

Womic inoshandisa mazinga ecarbon ne manganese akadzorwa kuti isvike padanho rechitatu asi ichichengetedza kugona kwayo kupinza zvinhu zvakanaka uye kugona kupinza zvinhu mumunda.

Zvimiro zveMichina (Kupisa Kwemukamuri):

Pfuma	ASTM A252 Giredhi 3
Simba reKubereka (min)	345 MPa (50,000 psi)
Simba reKusimba (miniti)	455 MPa (66,000 psi)
Kureba (miniti)	20% (yegeji ye50mm)
Kuoma (kwakajairika)	75-85 HRB

Kuenzanisa neASTM A252 Grades:

Giredhi	Kubereka MPa (min)	Tensile MPa (miniti)	Kushandiswa Kwakajairika
Giredhi 1	205	310	Basa diki, kuunganidzwa kwenguva pfupi
Giredhi 2	240	415	Kuronga hwaro hwese
Giredhi 3	345	455	Basa rinorema, nheyo yakadzika, gungwa

Giredhi rechitatu rakasimba ne40% kupfuura Giredhi rechipiri, zvichibvumira zvikamu zvemadziro zvakatetepa kana mutoro wakakwira wedhayamita imwe chete.

3. Kutevedzera Dimensional Range & Standards

Chinhu	Tsanangudzo
Zvakajairika	ASTM A252 Giredhi 3 (zvakare Giredhi 1, Giredhi 2 iripo)
Maitiro Ekugadzira	JCOE, UOE, ndiro yakakungurutswa (musono mumwe chete/wakapetwa kaviri)
Dhayamita Yekunze	219mm – 3,500mm (8″ – 138″)
Ruvara rweMadziro	JCOE/UOE: 6.0mm – 50.8mm; Ndiro yakamonerwa: 25mm – 100mm
Hurefu hwehurefu	Yakajairwa: 6m, 12m, 18m; Yakatambanudzwa: kusvika 60m (zvikamu zvakasungirirwa)
Kupedzisa Kupedzisa	Mugumo Wakajeka (PE), Mugumo Wakakombama (BE), kana kuti wakarukwa neshinda ine coupling (kana wakumbirwa)
Kupedzisa Kwepamusoro	Yakashama, Yakazorwa Mafuta, Yakaputirwa Nhema, Epoxy, Coal Tar Epoxy, Zinc (yakaiswa galvanized)
Kushivirira	OD: ±0.75% kana ±3.2mm; Huremu: -0% / +15%; Kureba: +100mm / -0mm yekuunganidza (isina kuoma kupfuura API)
Kururama	≤ 0.2% yehurefu (hwakajairika)

4. Zviyero & Magadzirirwo Anowanikwa - ASTM A252 Giredhi 3 LSAW Steel Pipe (Saizi Dzakajairwa Dzakasarudzwa)

OD (mm)	Sarudzo dzeWT (mm)	Maitiro	Huremu hunenge (kg/m2)	Kureba Kwakajairwa	Kushandiswa Kwakajairika
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6 – 63.6	12m / 18m	Nheyo yekuvaka
273	6.4, 8.0, 10.0, 12.5	JCOE	42.1 – 80.1	12m / 18m	Chiteshi chebhiriji
324	8.0, 10.0, 12.5, 14.0	JCOE	62.4 – 107.1	12m / 18m	Kuunganidza chiteshi
406	8.0, 10.0, 12.5, 14.0, 16.0	JCOE/UOE	78.5 – 153.9	12m / 18m	Nheyo yechiteshi chengarava
508	10.0, 12.5, 14.0, 16.0, 19.0	UOE	122.8 – 229.1	12m / 18m / 24m	Kuunganidza zvinhu zvegungwa
610	12.5, 14.0, 16.0, 19.0, 22.0	UOE	184.2 – 319.1	12m / 18m / 24m	Kuwedzera kwechiteshi chengarava
711	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	JCOE/UOE	215.3 – 429.4	12m / 18m	Puratifomu yekunze kwenyika
813	14.0, 16.0, 19.0, 22.0, 25.4, 30.0	JCOE	275.9 – 579.8	12m / 18m	Nheyo yakadzika
914	16.0, 19.0, 22.0, 25.4, 30.0, 35.0	JCOE/Yakamoneredzwa	354.4 – 759.2	12m / 18m	Caisson yebhiriji
1,016	19.0, 22.0, 25.4, 30.0, 35.0, 40.0	Yakakungurutswa	467.1 – 963.9	12m / 18m	Chiteshi chengarava
1,220	22.0, 25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Yakakungurutswa	650.0 – 1,450.5	12m / 18m	Bhachi rekunze kwegungwa
1,422	25.4, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0	Yakakungurutswa	875.1 – 2,016.8	12m / 18m	Mirwi mikuru yegungwa
1,600	30.0, 40.0, 50.0, 60.0, 70.0, 80.0	Yakakungurutswa (kaviri)	1,162 - 3,000	12m / 18m	Nheyo yemvura yakadzika
2,000	40.0, 50.0, 60.0, 70.0, 80.0, 90.0	Yakakungurutswa (kaviri)	1,933 - 4,240	12m	Chirongwa chikuru chechiteshi chengarava
2,500	50.0, 60.0, 70.0, 80.0, 90.0, 100.0	Yakakungurutswa (kaviri)	3,023 - 5,917	12m	Chivako chikuru chegungwa
3,000	60.0, 70.0, 80.0, 90.0, 100.0	Yakakungurutswa (kaviri)	4,351 - 7,149	12m	Purazi remhepo riri kunze kwenyika

Mapaipi anorema emadziro (≥ 50mm) angada PWHT kuderedza kushushikana kwasara. Kune nzvimbo dzine dambudziko (dzegungwa), kudzora kuomarara kwemvura kunogona kupihwa kana zvakumbirwa.

5. Mitemo Yakafanana & Magiredhi - Mapombi Ekuisa Piling Yekuvaka

Zvakajairika	Magiredhi eSimbi	Kushandiswa Kwakajairika	Maitiro Ekuumba
ASTM A252	Giredhi 1, 2, 3	Kuunganidza hwaro, zvegungwa	JCOE/UOE/Yakamoneredzwa
EN 10248	S235GP, S275GP, S355GP	Kuunganidza jira rinopfurwa nemoto (pombi)	Yakakungurutswa
EN 10219	S235JRH, S275JRH, S355JRH, S355J2H	Zvikamu zvemukati zvakasungirirwa zvakagadzirwa nechando	JCOE/Yakamoneredzwa
API 5L	GR.B, X42, X52	Kuunganidza mapuratifomu emafuta/gasi	JCOE/UOE
ASTM A500	GR.B, GR.C	Chubhu yakatenderera yeStructural	JCOE
BS 7191	S275, S355	Zvivakwa zvekunze kwegungwa	Yakakungurutswa

Pfupiso yekushandiswa:Nheyo dzemabhiriji, mapuranga echiteshi nechiteshi, mirwi yejaketi yepuratifomu iri kure, nheyo dzemhepo dzinofambisa mavhiri emhepo, nheyo dzekuvaka dzakadzika, macofferdams, masisitimu emarine fender.

6. Maitiro Ekugadzira - LSAW yeASTM A252 Grade 3 Steel Pipes

Womic Steel inosarudza maitiro acho zvichienderana nedhayamita neukobvu hwemadziro. Pakushandisa mapuranga, kushivirira kwakaenzana hakuna kuoma kupfuura API 5L, asi kusimba kweweld uye ductility zvakakosha pakufambisa nehammer.

Maitiro eJCOE (406–1,422mm OD, 6.0–50.8mm WIT):

● Kugaya simbi mumucheto weplate (bevel iri nyore, hapana chinodiwa chakasimba cheX kana J)

● Kuumbwa kweJCO kwakatevedzana

● Kusonwa kweSAW (mukati nekunze)

● Kuwedzera kwemuchina (zvingasarudzwa - mapaipi ekuisa zvinhu mumatanda kazhinji haadi kuwedzera)

● Yakakodzera mafoundation akawanda

Maitiro eUOE (508–1,220mm OD, 6.0–40mm WIT):

● Kudzvanya U-press uye O-press pamwe nekuwedzera

● Inogadzira mirwi yakatenderera zvikuru - inobatsira pakushandisa tambo dzakasimba mumakomba akamboborwa

● Inoshandiswa pakugadzira mapombi epuratifomu ari kunze kwenyika

Purati Yakamonerwa (Musono Mumwe Chete) weMadziro Akakura & Dhayamita Yakakura (600–3,500mm OD, 25–100mm WIT):

● Kukotama kwe4-roll mu cylinder

● Kusonwa kweSAW kwenguva refu (multi-pass yemadziro akakora)

● Hapana kuwedzera kwemuchina (kushivirira kwe ovality ±0.75% kunogamuchirwa pakuunganidzwa)

● Yakanakira mirwi mikuru yegungwa uko kutenderera kusina kukosha zvakanyanya kupfuura mutoro unorema

Purati Yakamonerwa (Musono Wakaviri) wedhayamita hombe kwazvo (1,200–3,500mm OD, 25–100mm WIT):

● Maplate maviri akamonerwa uye akasungirirwa pamwe chete nemisungo miviri

● Musono wega wega wakaongororwa 100% UT uye RT

● Inoshandiswa pakugadzira mapombi makuru ane dhayamita (mapombi emhepo anosvika 10m OD)

Kugadzirwa kweMurwi Murefu (kusvika 60m):Kune mapurojekiti anoda mirwi yakareba (semuenzaniso, mirwi yemhepo iri kunze kwegungwa), Womic inogona kusundira zvikamu zvakawanda zve12m kana 18m kubva kumagumo kusvika kumagumo uchishandisa mirwi yeSAW circumferential butt welds. Weld yega yega inotenderera inoongororwa 100% UT uye RT. Murwi wapera unorerutswa kushushikana (PWHT) kana ukobvu hwemadziro huchipfuura 40mm.

7. Maitiro Ekuongorora Hunhu uye Kuedza Mapaipi Esimbi eASTM A252 Grade 3 LSAW

Danho	Nzira yekuongorora	Chinangwa
Ndiro	Kuongorora Makemikari	Simbisa huwandu hwekabhoni/manganese
Ndiro	Kuedza Kusimba	Simbisa goho uye kudhonza (≥ 345/455 MPa)
Ndiro	Bvunzo reKukombama	Kusimbiswa kweDuctility
Zviri Mukati	Dimensional (OD, WT, ovality)	Iva nechokwadi chekuti pombi dzakaenzana
Musono we weld	Kuongororwa kweUltrasonic (100% yemapombi akakosha)	Tarisa zvikanganiso zve weld
Musono we weld	RT (nzvimbo - 10% yakajairika pakuunganidzwa kwemafuta)	Kusimbiswa kwemhando ye weld
Musono we weld	MPI (zvigunwe zveweld)	Mitswe yepamusoro (yakakosha pamapombi anofambiswa)
Pombi yapera	Kuongororwa kweHydrostatic (sarudzo - hazvidiwi kuti kuunganidzwa kwemvura kuome)	Kana zvataurwa chete
Pombi yapera	Kuedzwa kweKukotama Kunotungamirirwa (weld)	Kuchinjika kweWeld pakutyaira
Pombi yapera	Muedzo weKubata-bata	Kugadzikana kwemuviri wepombi
Pombi yapera	Kuonekwa & Kumaka	Mamiriro epamusoro, kureba kwechiratidzo

Kune mapombi anofambiswa (kuisa sando):Weld MPI uye guided bend tests zvakakosha kuona kuti weld inopona pakukanganiswa.

Zvingasarudzwa munzvimbo dzemugungwa kana dzinopisa:

● Kuongorora kuputira (kuona mazororo, kunamira, ukobvu)

● Kuongororwa kwekuoma (kwenzvimbo dzine mvura yakaoma mugungwa)

● PWHT yemakomba emadziro akakora (> 50mm)

8. Mashandisirwo Ekutanga - ASTM A252 Giredhi 3 LSAW Steel Pipe

●Nheyo dzebhiriji– Mirwi yakadzika yemigero yemabhiriji murwizi uye muvhu rakapfava

● Kuunganidza ngarava nechiteshi chengarava– Zviteshi zvengarava, madziro echiteshi chengarava, nheyo dzezvigadziko zvemidziyo

● Mirwi yejaketi repapuratifomu yekunze kwenyika- Mirwi yenheyo yenzvimbo dzemafuta/gasi munzvimbo dzakadzika kusvika pakati nepakati dzemvura

● Nheyo dzeshongwe yemhepo ine turbine– Monopiles yemapurazi emhepo ari kunze kwenyika (kazhinji dhayamita hombe, madziro akakora)

● Nheyo dzakadzika dzekuvaka dzakareba- Mirwi inotakurika yezvivakwa zvemarefu munzvimbo dzemaguta

● Mirwi yekutsigira fender yemugungwa- Masisitimu eFender ekuisa ngarava

● Matanda ekuchengetedza nemadziro ekuchengetedza- Kuchengetwa kwevhu kwenguva pfupi kana kuti kwenguva refu

● Chiratidzo chemugwagwa mukuru nenheyo dzematanda emwenje- Kuumbwa kwematanda madiki ekugadzira zvivakwa zvekufambisa

● Mirwi yekudzikamisa ivhu- Mapurojekiti ekugadzirisa ivhu

● Nheyo dzebhiriji rechitima- Zvivakwa zvezvitima zvinorema

9. Kurongedza & Kutumira - ASTM A252 Giredhi 3 LSAW Steel Pipe

Mapaipi ekuisa zvinhu anowanzo tumirwa akawanda, kazhinji zvakananga kunzvimbo dzekuvaka.

Kurongedza:

● Dhayamita diki (≤ 610mm): Yakasungirirwa netambo dzesimbi (tambo 3-5 pabhandi rimwe nerimwe) ine mapedhi ekudzivirira emakona.

● Madhayamita makuru (> 610mm): Mapaipi ega ega, akaparadzaniswa nedunnage yemapuranga.

● Mirwi yemadziro inorema: Mapombi ega ega ane zvitsigiro zvine maburi pamativi matatu kusvika mana.

● Zvivharo zvekupedzisira: Zvivharo zvepurasitiki zvemativi akachekwa; mativi asina kujeka anogona kusiiwa akavhurika.

● Dziviriro yekuvhara: Kune mirwi yakafukidzwa, rabha padding kana furo rinoputirwa pakati pezvikamu.

Kutumira:

● Midziyo yakakamurwa-kamurwa yematanda makuru uye marefu (kusvika 60m)

● Maturaki akatsetseka kana midziyo yakavhurika ine hurefu hunosvika 18m

● Matangi edhayamita diki (< 610mm, ≤ 12m)

● Njanji kana rori yekutumira zvinhu mukati menyika

Magwaro:Chitupa Chekuyedza Chigayo (EN 10204 Type 3.1), mushumo wechiyero, mishumo yeUT/RT (kana yakatsanangurwa), runyorwa rwekurongedza, invoice yekutengeserana, COO.

10. Mabhenefiti eSimbi yeWomic & Mibvunzo Inowanzo bvunzwa - ASTM A252 Giredhi 3 LSAW Simbi Pombi

Sei Simbi yeWomic yeASTM A252 Giredhi 3 Piling Pipe?

●Kugona kukuru kwedhayamita kusvika 3,500mm (138″) - kwakanakira mamonopiles nemapombi makuru egungwa

●Madziro anorema anosvika 100mm - anotsigira mitoro yakakwira kwazvo ye axial ne lateral

●Kugadzirwa kwemurwi murefu kusvika 60m - kunoderedza zvisungo zvemunda uye nguva yekuisa

●Maitiro akawanda (JCOE, UOE, rolled plate) ekugadzira zvinhu zvinodhura zvishoma

●Kuongororwa kwevamwe vanhu kuripo (SGS, BV, ABS, DNV)

●Mapaipi ekuisa mapuranga anopfuura 500 km anopiwa pasi rose

●Mitengo inokwikwidzana yemapurojekiti makuru ezvivakwa

Mibvunzo Inowanzo bvunzwa:

Mubvunzo: Ndeupi musiyano uripo pakati peASTM A252 Giredhi 3 neAPI 5L X52 pakuunganidza zvinhu?
A: Giredhi 3 rine simba shoma (345 MPa vs X52's 360 MPa) asi rakagadzirirwa zvakananga kutenderera. Rine ductility yakakwira uye zvinodiwa zvekureba (20% min) uye rinotsungirira zvakanyanya kukanda zvinhu panguva yekutyaira nehammer. API 5L X52 inogonawo kushandiswa pakurongedza, asi Giredhi 3 ndiyo mwero weindasitiri yemafoundation piles muNorth America nemapurojekiti mazhinji epasi rose.

Mubvunzo: Munogona here kupa mirwi yakareba kupfuura 18m?
A: Ehe. Tinogona kusundira zvikamu zvakawanda zve12m kana 18m pamwe chete kuti tigadzire hurefu hunosvika 60m. Weld yega yega inotenderera inoongororwa 100% UT uye inogona kuongororwa RT kana yakumbirwa. Makomba marefu aya anowanzo shandiswa pamonopiles dzemhepo dziri kunze kwegungwa (hurefu hwe30-50m).

Mubvunzo: Upfumi hwakanyanya hwakadii hwepaipi yeLSAW yeGiredhi 3?
A: Musono mumwe chete wakamonerwa kusvika 100mm, musono wakakamurwa kaviri zvakare kusvika 100mm. Kana madziro akobvu kupfuura 100mm (semuenzaniso, 120mm), ndapota taura nesu kuti tiongorore chirongwa. Takapa mapombi e120mm WT enheyo dzakakosha dzemvura yakadzika.

Mubvunzo: Mapaipi aya anoda kuongororwa kwemvura here?
A: ASTM A252 haidi kuyedzwa kwemvura inoyerera nekuti mapaipi ekuisa makomba haapindi kumanikidzwa. Zvisinei, kana chirongwa chako chichida kuyedzwa kwemvura (semuenzaniso, kwekuiswa kwemakomba pamwe chete uye kutakurwa kwemvura), tinogona kuzviita nemutengo wekuwedzera.

Mubvunzo: Ndechipi chifukidziro chinokurudzirwa pakuputira mvura mugungwa?
A: Kune nzvimbo dzemvura yegungwa, marasha epoxy (ukobvu hwema microns 600-800) kana girazi flake epoxy zvakajairika. Kune nzvimbo dzinopararira, tinokurudzira FBE kana 3LPE ine simba rekudzivirira kukwesha. Kune mvura yakachena kana ivhu, pombi nhema isina chinhu kana pamusoro pemafuta zvinowanzo kukwana.

Q: Unoita sei kuti ma welds arambe aripo nekushandisa nyundo?
A: Tinoita 100% UT ye weld seam pamwe neMPI (magnetic particle inspection) yezvigunwe zve weld kuti tione chero kuputika kwepadenga. Tinoitawo guided bend tests pa weld samples kuti tione ductility. Kune critical driven piles, tinogonawo kupa Charpy impact testing pa0°C kana pasi.

Q: Ndeipi nguva yakajairika yekuisa mapaipi eGiredhi 3?
A: Nguva yakatarwa yekutungamira: mazuva 30-45 edhayamita ≤ 1,422mm. Kune mapaipi eplate akakungurutswa ane dhayamita yakakura (> 1,422mm): mazuva 45-60. Kune mapaipi marefu akasungirirwa (kusvika 60m): wedzera mavhiki 2-3 ekushongedza nekutarisa denderedzwa.

Chirevo cheProjekti - Kuwedzera kweChiteshi cheMakontena chePort of Houston

Nyika:Nyika dzakabatana (Houston, Texas)
Standard & Giredhi:ASTM A252 Giredhi 3 (ine Charpy impact yekuwedzera pa0°C)
Zviyero & Huwandu:

●OD 914mm (36″) × Huremu 19.0mm – 18,000 metres (anenge matani 7,600) yakagadzirwa neJCOE process

●OD 1,067mm (42″) × Huremu 22.2mm – 9,000 metres (anenge matani 4,600) yakagadzirwa ne rolled plate single seam

●OD 1,219mm (48″) × Huremu 25.4mm – 3,500 metres (anenge matani 2,500) yakagadzirwa ne rolled plate single seam (yenzvimbo dzemvura yakadzika)
Huwandu:Mamita 30,500 (30.5 km) ekuunganidzira matura, matani angangoita 14,700

Magadzirirwo:Migumo isina kuchekwa (yakagadzirwa nemativi mana) ine chamfer, epoxy coating (500 microns, coal tar epoxy type) yekudzivirira ngura mumvura ine brackish Houston Ship Channel. Kuedza kwekupeta (hapana mitswe mushure mekupeta dhayamita 1/3). Kuedza kwekupeta kwakatungamirirwa kwe weld ductility. 100% UT ye weld seam pamwe ne10% RT spot. MPI yezvigunwe zvekupeta. Charpy impact pa0°C (min 20J, typical 40-60J). Kuongorora kwechitatu neSGS.

Kushandiswa:Kuwedzerwa kweBayport Container Terminal paPort of Houston. Chirongwa ichi chaisanganisira kuvaka nzvimbo mbiri itsva dzekurara (1,200m total quay wall) nenzvimbo yekuchengetera makontena iri padivi pevhu. Mapombi esimbi anoshanda sehwaro hwechivakwa chedeki rekongiri (mapombi akatwasuka anotakura mutoro) uye semapombi ekutsigira fender (kurodha lateral). Kudzika kwemvura panzvimbo dzekurara: 16m.

Matambudziko ehunyanzvi nemhinduro:

●Mvura ine mvura ine munyu inoparadza– Houston Ship Channel ine huwandu hwakawanda hwechloride (10,000-18,000 ppm) uye pH yakaderera (6.5-7.0) nekuda kwekuyerera kwemvura mumaindasitiri. Womic yakaiswa coal tar epoxy coating (600 microns DFT) ine zvikamu zviviri: primer (200 microns) + topcoat (400 microns). Coating yakapfuura bvunzo yesalt spray yemaawa 3,000 (ASTM B117) ine <2mm creep. Kuonekwa kwezororo kwakaitwa pa3.5kV pasina kukundikana.

●Kunetseka kwakanyanya mujecha rakakora– Ivhu riri pachiteshi rine jecha rakasviba rine mwero wejecha rine mwero wepamusoro (SPT) N-values ye30-50. Kumanikidzwa kwemurwi kwakasvika 80% yesimba remurwi. Womic yakaita bvunzo dzekukombama dzakatungamirirwa pamakuponi eweld (bend radius 4x thickness, 180°) pasina mitswe. Takapawo weld MPI pachikamu chega chega che50th kuti tive nechokwadi chekuti hapana mitswe yezvigunwe. Mukondirakita wekutyaira murwi wemutengi akataura kuti hapana mitswe yakatyoka panguva yekuisa mitswe 2,100.

●Kureba kwemurwi wenzvimbo dzemvura yakadzika- Nzvimbo yakadzika yaida mirwi inofambiswa kusvika pakadzika kwemamita makumi matatu nemaviri (20m mugungwa + 12m pamusoro pemugero wevhu). Mirwi yakajairika yemamita gumi nemaviri yaizoda mirwi mitatu yemunda pamurwi. Womic yakapa mirwi yakareba 18m (yakamonerwa plate single seam) yemirwi ye1,067mm ne1,219mm, zvichideredza mirwi yemunda kubva pa3 kusvika pa2 pamurwi (kuchengetedza nguva yekusondera ye35%). Takapawo mirwi yakareba 36m yefender system (hapana mirwi inodiwa) nekusondera zvikamu zviviri zve18m kubva kumagumo kusvika kumagumo neSAW yakazara uye 100% UT.

●Kusimba kwekutyaira muchando– Tembiricha yechando muHouston inogona kuderera kusvika -5°C. Kutyaira nemota patembiricha yakaderera kunogona kukonzera kupwanyika kwetsandanyama. Womic inopihwa Giredhi 3 ine kusimba kwakawedzerwa patembiricha yakaderera: Charpy impact pa 0°C min 20J (standard A252 haidi kuyedzwa kweimpact). Mhedzisiro chaiyo: 45-65J pa 0°C, 35-50J pa -10°C. Mutengi akaisa izvi sechinhu chisiri chemutemo asi chinobatsira.

●Kutumirwa kwezvinhu panguva chaiyo– Nzvimbo yekuvaka yaive nenzvimbo shoma yekurara (8,000 square metres chete). Womic yakaronga kutumira zvinhu zvina (inenge matani 3,700 imwe neimwe) kwemwedzi mishanu. Mapaipi akaunzwa nechikepe chekutakura zvinhu kubva kuShanghai kuenda kuHouston, ndokuzotumirwa nemarori akawanda matani 200 mavhiki maviri ega ega. Chikwata cheWomic chekutakura zvinhu chakabvumirana nechikwata chechiteshi kuti vatange kuburitsa zvinhu uye kutungamira kurodha zvinhu, vachidzivirira kuchengetwa pachiteshi. Zvinhu zvese zvakatumirwa zvakasvika mukati memazuva ±3 kubva pamazuva akarongwa.

●Kutevedzera mutemo weBuy America waiver- Chirongwa chePort of Houston chaida kuti simbi yekunze ibviswe nekuti kugadzirwa kwemuno muUS kwaisakwanisa kusvika panguva yakatarwa. Womic yakapa magwaro akadzama anosanganisira zvitupa zvemugayo, nyika yakabva, uye kurongeka kwezvinhu. Kuregererwa kwacho kwakatenderwa, uye matani ese 14,700 akabvumidzwa neUS Customs pasina kunonoka.

● Mhedzisiro:Kuwedzerwa kweBayport Container Terminal kwakapedzwa mukota yechitatu ya2024, nguva isati yakwana. Mapombi ese esimbi 2,100 akapasa bvunzo yekutakura zvinhu (kuyedzwa kwekutakura zvinhu pa5% yemapombi: kugadziriswa < 10mm pa2x dhizaini). Dare rechiteshi rakashuma kuti hapana kukundikana kwemapombi kana matambudziko ekuputira. Womic Steel yakagamuchira mubairo we "Supplier Performance Excellence" kubva kumukuru wekambani (kambani huru yeinjiniya yezvivakwa yeUS). Nzvimbo iyi yava kushanda, ichipa 1.5 miriyoni TEU pagore.

Bata nesu:
Webhusaiti: www.womicsteel.com
E-mail: sales@womicsteel.com

Nhare / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel - Mubatsiri wako wakavimbika weASTM A252 Grade 3 LSAW steel piles for bridge foundations, marine pillings, deep building foundations, uye offshore wind farm monopiles pasi rese.

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