Astm A139 Steel Pipe Standard
Tichiunza pombi yesimbi inotenderera yeS235 J0 - mhinduro inoshanda zvakasiyana-siyana yakagadzirirwa kusangana nezvinodiwa zvakasiyana-siyana zveindasitiri yemazuva ano. Yakagadzirwa mufekitori yemazuva ano iri muCangzhou City, Hebei Province, kambani yedu yave iri kutungamira mukugadzirwa kwesimbi kubvira muna 1993. Kambani iyi ine nzvimbo inosvika 350,000 square metres uye ine pfuma inosvika RMB 680 miriyoni. Tinodada nekuva nevashandi vakazvipira ve680 vane hunyanzvi vakazvipira kupa zvigadzirwa zvemhando yepamusoro.
Chimwe chezvinhu zvinoshamisa zvepombi yesimbi inotenderera yeS235 J0 ndiko kuchinjika kwayo kunoshamisa muhupamhi uye ukobvu hwemadziro. Kuchinjika uku kunotibvumira kusangana nezvinodiwa zvakasiyana-siyana zvekugadzira, kunyanya mukugadzirwa kwemapombi ane madziro akakora emhando yepamusoro. Kunyangwe uchida pombi yekuvaka, mafuta negesi, kana mamwe mashandisirwo emaindasitiri, pombi yedu yeS235 J0 yakagadzirwa kuti ikwane yakasimba.ASTM A139zviyero zvemapaipi esimbi kuti ive nechokwadi chekuvimbika uye kushanda zvakanaka kunyangwe munzvimbo dzakaoma zvakanyanya.
Kuzvipira kwedu kune mhando uye hunyanzvi zvinoreva kuti chidimbu chega chega chepombi yesimbi yeS235 J0 inoongororwa zvakasimba uye inodzorwa nehunhu, zvichiita kuti chigadzirwa chaunogamuchira chisasvike chete asi chinopfuura mwero weindasitiri. Neruzivo rwedu rwakakura nehunyanzvi, takazvipira kupa vatengi vedu mhinduro dzakanakisa dzakagadzirirwa kusangana nezvinodiwa zvavo.
Tsanangudzo yeChigadzirwa
| 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. | ||||||||
Kubatsira Kwechigadzirwa
1. Chimwe chezvakanakira zvikuru zveASTM A139 steel pipe ndiko kuchinjika kwayo muhupamhi uye ukobvu hwemadziro. Kuchinjika uku kunobvumira vagadziri kugadzira mapaipi ehukuru hwakasiyana-siyana kuti asvike pazvinodiwa zvakasiyana-siyana zvepurojekiti.
2. Kugona kwekugadzira kwekambani yakaita seyedu, iri muCangzhou, Hebei Province, kunowedzera mabhenefiti eASTM A139.
3. Yakavambwa muna 1993, fekitori yedu ine nzvimbo inosvika 350,000 square metres, ine midziyo inosvika RMB mamiriyoni 680, uye ine vashandi vane hunyanzvi vanosvika 680. Iyi zvivakwa zvakakura zvinotigonesa kusangana nezvinodiwa nevatengi vakawanda uku tichichengetedza mwero wepamusoro wekugadzira.
Kushaikwa kwechigadzirwa
1. Mutemo weASTM A139 ungasavhara zvese zvinodiwa kune mamwe mashandisirwo, zvichikonzera kushanda kushoma mumamiriro ezvinhu akaomarara.
2. Maitiro ekugadzira anogona kunge akaoma uye achidhura kupfuura mamwe maitiro, izvo zvinogona kukanganisa mitengo uye kuwanikwa.
Mhedzisiro
S235 J0 Spiral Steel Pipe inobatsira zvikuru vagadziri nekuda kwekugona kwayo kuchinjika. Kugona kugadzirisa dhayamita neukobvu hwemadziro kunobvumira kugadzirwa kwepombi yepamusoro-soro, ine madziro akakora inosangana nezvinodiwa zvepurojekiti. Kuchinjika uku hakungowedzere kushanda zvakanaka kwekugadzira, asiwo kunoita kuti chigadzirwa chekupedzisira chigone kutsungirira mamiriro akasiyana-siyana ezvakatipoteredza nekumanikidzwa, zvichiita kuti chikwanise kushandiswa zvakasiyana-siyana.
Fekitori yedu iri muCangzhou, Hebei Province, uye yave iri kambani huru muindasitiri yesimbi kubvira payakavambwa muna 1993. Fekitori yedu ine nzvimbo inosvika 350,000 square metres, ine midziyo inosvika RMB 680 miriyoni, uye ine vashandi vane hunyanzvi vanosvika 680. Iyi zvivakwa yakasimba inotigonesa kugadzira mapaipi esimbi emhando yepamusoro anosangana neASTM A139 standards, zvichiita kuti zvigadzirwa zvedu zvisangane nezvinodiwa nevatengi vedu.
ASTM A139pombi yesimbiStandard ine simba guru pakugadzirwa kwepombi yesimbi yeS235 J0 inotenderera, zvichivandudza kugona kwayo kugadzira zvinhu uye mhando yezvigadzirwa. Sezvatinoramba tichigadzira zvinhu zvitsva nekuwedzera kugona kwedu, tinoramba takazvipira kupa mhinduro dzesimbi dzepamusoro dzinosangana nezvinodiwa zveindasitiri.
Mibvunzo Inowanzo bvunzwa
Mubvunzo 1: Chii chinonzi ASTM A139?
ASTM A139 imhando yakajairwa inoratidza zvinodiwa zvemapaipi esimbi anodzivirira magetsi. Mapaipi aya anowanzo shandiswa mukushandiswa kwesimba shoma uye anozivikanwa nekusimba kwawo uye kugara kwenguva refu. Mutemo uyu unoita kuti mapaipi akwane hunhu hwakasiyana hwemakanika uye makemikari, zvichiita kuti akwanise kushandiswa mumaindasitiri akasiyana-siyana.
Mubvunzo wechipiri: Ndezvipi zvakanakira pombi yesimbi yeS235 J0 inotenderera?
Chimwe chezvakanakira zvikuru zveS235 J0 spiral steel pombi ndiko kuchinjika kwayo muhupamhi uye ukobvu hwemadziro. Kuchinjika uku kunobvumira vagadziri kugadzira pombi yepamusoro-soro, ine madziro akakora inogona kutsungirira kumanikidzwa kukuru uye kushushikana. Kukwanisa kugadzirisa magadzirirwo aya kunoita kuti pombi yeS235 J0 ive sarudzo yakanaka kumapurojekiti anoda saizi chaiyo uye simba.
