Spiral Welded Carbon Simbi Mapaipi Epasi pevhu Natural Gasi Mapaipi - EN10219
Imwe yemabhenefiti makuru espiral welded carbon steel pipendiko kugona kugadzira pombi dzemadhayamita akasiyana uchishandisa mitsetse yehupamhi hwakafanana. Izvi zvinonyanya kubatsira kune maapplication anoda nhete mitsetse yesimbi kugadzira hombe dhayamita yesimbi mapaipi. Iyi nzira itsva yekugadzira inovimbisa kuti mapaipi anogadzirwa haasi chete akasimba uye akasimba, asiwo ehutano hunoenderana.
Spiral welded carbon simbi mapaipi akagadzirirwa kuisirwa pasi pevhu gasi pombi pombi uye zvinoenderana nezvinodiwa zvakasimba zve.EN10219. Iyi chiyero inodonongodza zvinodiwa zvehunyanzvi zvekuendesa kune inotonhora-yakaumbwa yakashongedzerwa makomba makomba zvikamu zveasiri-alloy simbi uye akatsetseka-grained simbi. Iyo pombi naizvozvo yakanyatsokodzera kushandiswa mumapaipi epasi pegasi chaiwo apo kupokana nekuora uye kusimba kwechimiro kwakakosha.
Mechanical Property
| simbi giredhi | shoma goho simba Mpa | Kusimba simba | Minimum elongation % | Minimum impact simba J | ||||
| Ukobvu hunotsanangurwa mm | Ukobvu hunotsanangurwa mm | Ukobvu hunotsanangurwa mm | at test temperature ye | |||||
| ＜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
| Simbi giredhi | Mhando ye de-oxidation a | % nehuwandu, huwandu | ||||||
| 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. Iyo deoxidation nzira inosarudzwa seinotevera: FF: Simbi yakaurayiwa zvizere ine nitrogen inosunga zvinhu muhuwandu hunokwana kusunga nitrogen iripo (semuenzaniso min. 0,020 % yakazara Al kana 0,015 % soluble Al). b. Iyo yakanyanya kukosha yenitrogen isingashande kana kemikari ichiratidza huwandu hushoma hwese hweAl content ye0,020 % ine hushoma hweAl/N chiyero che2: 1, kana kana zvimwe zvakakwana zveN-binding zvinhu zviripo. Iyo N-inosunga zvinhu icharekodhwa muChinyorwa Chekuongorora. | ||||||||
Pamusoro pekusiyana-siyana kwayo mukugadzira mapaipi makuru esimbi dhayamita, spiral welded carbon steel pombi inopa zvimwe zvakawanda zvakanaka. Yayo spiral welding tekinoroji inovimbisa kuti pombi ine yakatsetseka yemukati, inoderedza kudonha kwekumanikidza uye kugadzirisa kuyerera maitiro. Izvi zvinonyanya kukosha mumapombi epombi egasi, uko kuyerera kwakanaka uye kusingadzivirirwe kwakakosha pakuita kwakaringana.
Pamusoro pezvo, spiral welded kabhoni simbi pombi inoshingirira mukuora, ichiita kuti ive yakanakira kuisirwa pasi pevhu uko kuratidzwa nehunyoro uye zvinhu zvevhu zvinogona kukanganisa kuvimbika kwepombi. Kuvakwa kwayo kwakasimba uye zvinhu zvinogara kwenguva refu zvinoita kuti ive yakakodzera kushandiswa kwenguva refu mumamiriro ezvinhu akaoma.
Iko kushandiswa kwepamusoro-mhando kabhoni simbi inovimbisa kuti mapaipi ane akanakisa emuchina zvivakwa, kusanganisira yakakwira tensile simba uye kukanganisa kupikisa. Izvi zvinoita kuti ive sarudzo yakavimbika kunepasi pevhu gasi gasi pombikuiswa, sezvo mapaipi anogona kunge ari pasi pemitoro yekunze uye kukuvara kunogona kuitika.
Muchidimbu, spiral welded kabhoni simbi mapaipi ndiyo yakanakisa sarudzo yepasi pevhu echisikigo pombi pombi. Maitiro ayo ekugadzira ekugadzira anobvumira kugadzirwa kwepaipi yakakura yesimbi kubva kune yakamanikana mitsetse yesimbi, kuve nechokwadi chekuenderana uye kusimba. Iyo pombi inosangana nezvinodiwa zve EN10219 yakajairwa uye ine yakanakisa corrosion kuramba, yakatsetseka mukati memukati uye yakasimba michina zvivakwa, zvichiita kuti ive yakanakira kwenguva yakareba yakavimbika kushandiswa mupasi pevhu gasi gasi pombi kuisirwa.
