ASTM A252 Grade 3ndiyo inonyanya kushandiswa se cylindrical pile pombi.
Giredhi 3 simbi pombi mirwi haina kugumira kune yakatarwa maitiro ekugadzira uye inogona kugadzirwa uchishandisa akasiyana nzira dzekugadzira pombi, kusanganisira.SMLS(isina musono),SAW(yakadzika arc welded), uyeEFW( electro-fusion welded).Uku kuchinjika kunobvumira kuti igadziriswe kune akasiyana einjiniya zvinodiwa uye mamiriro ekushandisa.
Segiredhi repamusoro-soro muye A52 chiyero, ine yakanakisa mechanicha zvivakwa zvine hushoma goho simba re310 MPa uye kushoma tensile simba re455 MPa uye inogona kushandiswa sechigarire-inotakura-inotakura zvimiro chikamu kana segoko rekukanda-mukati. -isa mirwi yekongiri.
TheASTM A252chiyero chinoisa simbi pombi mirwi mumagiredhi matatu kuti ienderane nenzvimbo dzakasiyana dzekushandisa uye kurodha zvinodiwa.Iwo magiredhi matatu ndeaya:
Grade 1, Grade 2, uye Grade 3.
Iyo kambani yakaunza seti yakakwana yemhando yepamusoro yeJCOE LSAW simbi yekugadzira pombi yekugadzira nemidziyo yekuyedza, inyanzvi mukugadzirwa kwegobvu-yakavezwa, yakakura-dhayamita LSAW simbi pombi ine DSAW (maviri-mativi akanyura arc welding).
Madimikira echigadzirwa ndeaya:
Outer Diameter: DN 350 - 1500;
Kukora Kwemadziro: 8 – 80 mm;
Mirwi yepombi ichave isina magumo.
Migumo yacho ichave yakachekwa-chekwa-chekwa-chekwa-chekwa nemuchina uye kubviswa.
Panyaya yebeveled magumo, kona yebeveled yekupedzisira inofanira kuva30 - 35 °.
Botop Steelinopa huwandu hwakawanda hwemhando yepamusoro ASTM A52 mapaipi esimbi.Ndapota inzwa wakasununguka kutibata nesu pane zvaunoda.
Iyo simbi ichaitwa neimwe kana kupfuura yeanotevera maitiro: yakavhurika-yevhu, basic-oxygen, kana yemagetsi-choto.
A252 ichagadzirwa neisina musono, magetsi kuramba welded, flash welded, kanafusion weldedprocess.
Mishonga yemapaipi akaiswa welded anofanira kunge arilongitudinal, helical-butt, kanahelical-lap.
Kuve nechokwadi chemhando uye kushanda kwesimbi pombi mirwi, zvakakosha kuti usarudze nzira chaiyo yekugadzira.
Iyo LSAW (SAWL) maitiro akanakira hombe-dhayamita, gobvu-yakavakirwa simbi pombi, kunyanya mukuvaka uye mapurojekiti ezvivakwa anoda huwandu hwekutakura mutoro uye kuvaka kwakadzika nheyo.Nekuda kwesimba rayo repamusoro, kutakura mutoro, uye kudzika kuchinjika, inokwanisa kuenderana neyakasiyana siyana yakaoma geologic mamiriro apo ichipa mabhenefiti ekukurumidza kuiswa uye kusimba kwenguva refu.
JCOEinzira yakajairika yekugadzira mukugadzirwa kweLSAW simbi pombi, ine zvakanakira kushanda kwepamusoro, mhando yepamusoro, yakakura dhayamita yekugadzira dhayamita, kurongeka kwedimensional, kuchinjika, uye hupfumi, izvo zvaita kuti ive iyo inofarirwa yekugadzira pombi mumazhinji makuru- zviyero zveinjiniya mapurojekiti.
Simbi yacho ngaigaremohapana kupfuura 0.050% phosphorus.
Kudzikamisa phosphorus musimbi kuve nechokwadi chekuti simbi ine yakanaka mechanicha zvivakwa, kunyanya kana ichishandiswa kune zvimiro zvekushandisa senge kuvaka piling.
Kuganhurirwa uku kunobatsira kudzivirira simbi kuti isanyanya brittle pakudziya kwakadzika, nokudaro kuve nechokwadi chekuchengetedzwa kwayo uye kuvimbika mukushandiswa.
Kune zvimwe zvinhu zviri mukati, hapana zvinodiwa.
Izvi zvinodaro nekuti iyo inonyanya kutariswa yepombi pile machubhu ndeye kuona kuti machubhu ane akaringana simba rechimiro uye kuoma, izvo zvakakosha zvivakwa zvekushandisa mukutsigira zvimiro.
Kune tubular pile machubhu, kutariswa kwakawanda kunobhadharwa kune ma mechanic properties emachubhu, senge simba regoho, kusimba kwesimba, uye kuomarara, sezvo zvivakwa izvi zvine chekuita nekutakura-kuremerwa simba uye kugadzikana kwechimiro chetubular mirwi mukushandisa zvinoshanda. .
ATafura 2 inopa iyo yakaverengerwa mishoma kukosha:
Kana iyo yakatsanangurwa yezita remadziro ukobvu huri pakati kune idzo dzaratidzwa pamusoro, hudiki hwekurebesa kukosha huchatemwa sezvinotevera:
Giredhi 3: E = 32t + 10.00 [E = 1.25t + 10.00]
E: kureba mu2 mukati. [50.8 mm], %;
t: yakatsanangurwa zita remadziro ukobvu, mukati. [mm].
Iyo ASTM A252 Giredhi 3 yakajairwa inovimbisa kuchengetedzeka uye kuvimbika kwetubular piles mukushandiswa nekuisa zvidiki zvinodiwa kune aya makinika zvivakwa.
Pazviyero zvepombi zvisina kunyorwa mumatafura ehuremu hwepombi, huremu pahurefu hweyuniti hunogona kuverengerwa uchishandisa fomuro.
w = C×(Dt)×t
w: uremu pakureba kweyuniti, Ilb/ft [kg/m];
D: kutsanangurwa kunze kwedhayamita, mukati. [mm];
t: yakatsanangurwa zita remadziro ukobvu, mukati. [mm];
C: 0.0246615 yekuverenga mumayuniti eSI uye 10.69 yekuverenga mumayuniti eUSC.
Maverengero ari pamusoro akavakirwa pafungidziro yekuti density yepombi yesimbi i7.85 kg/dm³.
ASTM A252 Giredhi 3 ine simba repamusoro uye kuoma kweivhu rakasiyana-siyana uye zvinotakura zvinotakura.Iyi pombi yesimbi inowanzoshandiswa mune zvinotevera zvinoshandiswa:
1. Kuvaka nheyo: ASTM A252 Giredhi 3 pombi yesimbi inoshandiswa semirwi nheyo mubasa renheyo yezvivakwa zvepamusoro-soro, mabhiriji, uye zvimwe zvivako zvakakura kuti zvipe rubatsiro rwakakodzera uye kugadzikana.
2. Zviteshi nezviteshi: Mapombi esimbi aya anoshandiswa kusungirira pakuvaka zviteshi nezviteshi zvekutepfenyura kuitira kuona kuti chimiro chinokwanisa kushingirira kukanganiswa kwengarava uye kukukurwa kwenzvimbo yegungwa.Kuti kuwedzere kusimba uye kushorwa nekuora kwepombi dzesimbi, machira anowanzo shandiswa kuti ape kumwe kudzivirirwa.
3. Mvura: ASTM A252 Giredhi 3 pombi yesimbi inoshandiswa kusimbisa mabhanga enzizi uye kupa kuchengetedzwa kwemafashama mukuvaka madhamu, kukiya, uye zvimwe zvivakwa zvemvura.
4. Mapurojekiti emagetsi: Musimba remhepo, zvigadziriso zveoiri, uye mamwe mapurojekiti emagetsi emagetsi, mapombi esimbi aya anoshandiswa sezvivakwa zvekutsigira kuona kushanda kwakagadzikana kwemidziyo.
5. Zvifambiso zvekufambisa: ASTM A252 Giredhi 3 pombi yesimbi inoshandiswa pakuputira mukuvaka njanji, migwagwa mikuru, uye nhandare dzendege kuti dzipe yakakwana yekutakura mitoro uye kusimba.
Kubva pakavambwa muna 2014.Botop Steelrave mutengesi anotungamira wekabhoni simbi pombi kuChamhembe kweChina, inozivikanwa nebasa rakanakisa, zvigadzirwa zvemhando yepamusoro, uye mhinduro dzakakwana.
Botop Steelinopa zvakasiyana-siyana zvekabhoni simbi mapaipi uye zvigadzirwa zvine hukama, zvinosanganisira isina musono, ERW, LSAW, uye SSAW simbi pombi, pamwe neyakakwana mutsara wepombi fittings uye flanges.Zvigadzirwa zvayo zvehunyanzvi zvinosanganisira alloys epamusoro-giredhi uye austenitic simbi isina tsvina, yakagadzirirwa kusangana nezvinodiwa zveakasiyana mapurojekiti epombi.
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