Mapaipi esimbi eASTM A139 S235 J0 Spiral
Chimwe chezvakanakira zvikuru zveS235 J0 pombi yesimbi inotendererandiyo nzira yayo yekuchinjika muhupamhi hwayo uye ukobvu hwemadziro. Izvi zvinoita kuti pave nekuchinjika kukuru mukugadzirwa kwayo, kunyanya mukugadzirwa kwemapombi ane madziro akakora uye epamusoro. Pamusoro pezvo, tekinoroji iyi inoshanda zvakanyanya pakugadzira mapaipi ane madziro akakora ane dhayamita diki nepakati, ichipfuura dzimwe nzira dziripo.
Zvivakwa zveMechanical
| giredhi resimbi | simba shoma regoho Mpa | Simba rekusimba | Kureba kushoma % | Simba shoma remagetsi J | ||||
| Ukobvu hwakatarwa mm | Ukobvu hwakatarwa mm | Ukobvu hwakatarwa mm | patembiricha yekuyedzwa kwe | |||||
| 16 | ＞16≤40 | 3 | ≥3≤40 | ≤40 | -20℃ | 0℃ | 20℃ | |
| S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
| S275J0H | 275 | 265 | 430-580 | 410-560 | 20 | - | 27 | - |
| S275J2H | 27 | - | - | |||||
| S355J0H | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| S355J2H | 27 | - | - | |||||
| S355K2H | 40 | - | - | |||||
Kuumbwa kweMakemikari
| Giredhi resimbi | Rudzi rwekubvisa oxidation a | % nehuremu, huwandu hwepamusoro | ||||||
| Zita resimbi | Nhamba yesimbi | C | C | Si | Mn | P | S | Nb |
| S235JRH | 1.0039 | FF | 0,17 | — | 1,40 | 0,040 | 0,040 | 0.009 |
| S275J0H | 1.0149 | FF | 0,20 | — | 1,50 | 0,035 | 0,035 | 0,009 |
| S275J2H | 1.0138 | FF | 0,20 | — | 1,50 | 0,030 | 0,030 | — |
| S355J0H | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
| S355J2H | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | — |
| S355K2H | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | — |
| a. Nzira yekubvisa oxidation inosarudzwa seinotevera: FF: Simbi yakaurayiwa zvizere ine nitrogen binding elements muhuwandu hwakakwana kuti isunge nitrogen iripo (semuenzaniso 0,020 % huwandu hweAl kana 0,015 % inonyungudika Al).b. Kukosha kwakanyanya kwenitrogen hakushande kana makemikari achiratidza huwandu hweAl hushoma hwe0,020 % neAl/N ratio ye2:1, kana kana paine zvimwe zvinhu zveN-binding zvakakwana. Zvinhu zveN-binding elements zvinofanira kunyorwa muInspection Document. | ||||||||
Hunhu hwakanaka hweS235 J0 spiral steel pombi hunoita kuti ive yakakodzera kushandiswa kwakasiyana-siyana. Ingava mapurojekiti emaindasitiri, ekutengeserana kana ezvivakwa, chigadzirwa ichi chakagadzirirwa kusangana nezvinodiwa nevashandisi vacho. Kushanda kwacho kwakavimbika uye kugara kwenguva refu kunoita kuti ive mhinduro inodhura zvishoma kune chero chirongwa chinoda machubhu esimbi akafukidzwa nespiral.
Pamusoro peS235 J0 spiral steel pipe, chigadzirwa chedu chinosanganisirawoPombi yesimbi yeA252 Giredhi 3Chigadzirwa ichi chinogadzirwa uchishandisa matekinoroji ekugadzira emhando yepamusoro uye akavimbika. Nesimba rayo rekusimba uye kuramba ngura kwakanyanya, pombi yesimbi yeA252 Grade 3 yakakodzera kushandiswa kwakaoma.
Tinodada nekupa tambo yakazara yemapaipi esimbi akasungirirwa pasi pe spiral arc arc anosangana uye anodarika zvinodiwa neindasitiri. Kuzvipira kwedu kune mhando uye hunyanzvi kwakaita kuti tive mutengesi akavimbika kuindasitiri yemapaipi esimbi. Nekuzvipira kwedu kuita zvakanaka, tinoramba tichisimudzira miganhu yekugadzira mapaipi esimbi.
Kana zvasvika papipi yakasungirirwa ye spiral inopinda mu arc welded, zvigadzirwa zvedu zvinoisa mwero wekushanda, kugara kwenguva refu uye kuvimbika. S235 J0 Spiral Steel Pipe neA252 Grade 3 Steel Pipe mienzaniso miviri chete yekuzvipira kwedu kupa vatengi vedu mhinduro dzakanakisisa. Tinotarisa pamhando yepamusoro uye hunyanzvi uye takazvipira kusangana nezvinodiwa nevatengi vedu uye kupfuura zvavanotarisira.
Muchidimbu, pombi yedu yesimbi inotenderera yeS235 J0 uye pombi yesimbi yeA252 yegiredhi rechitatu zvinokonzerwa netekinoroji yepamusoro uye hunyanzvi hwepamusoro. Zvigadzirwa izvi zvinopa mashandiro asina muganho, zvichiita kuti zvive sarudzo yakakwana yekushandiswa kwakasiyana-siyana. Ingave iri yekuvaka, yezvivakwa kana yemapurojekiti emaindasitiri, mapombi edu akasungirirwa esimbi anotenderera akagadzirwa kuti ape mhedzisiro yepamusoro. Vimba kuti hunyanzvi hwedu neruzivo zvichakupa mapombi esimbi emhando yepamusoro ari pamusika.
