ASTM A334Giredhi 6ipombi yesimbi yekabhoni yakasimba zvikuru, inodziya zvishoma ine kabhoni yakawanda ye0.30%, manganese yakawanda ye0.29-1.06%, simba rekudhonza re415Mpa (60ksi), uye simba rekubudisa re240Mp (35ksi).
Inonyanya kushandiswa mukugadzira gasi rechisikigo rakanyungudutswa, mainjiniya epolar, uye tekinoroji yekutonhodza, ichichinjika kunzvimbo dzine tembiricha yakaderera zvakanyanya.
ASTM A334ndiyo nzira yakajairika yekushandisa machubhu esimbi yekabhoni nesimbi ye alloy isina musono uye yakasungirirwa kuti ishandiswe pakugadzira cryogenic.
Kune magiredhi akati wandei ekuzadzisa zvinodiwa zvakasiyana.
Giredhi 1, Giredhi 3, Giredhi 6, Giredhi 7, Giredhi 8, Giredhi 9, uye Giredhi 11.
Giredhi 1uye Giredhi 6 ese ari mapaipi esimbi yekabhoni.
Pombi yesimbi yeASTM A334 Grade 6 inogona kugadzirwa nenzira dzisina musono kana dzakasungirirwa.
Maitiro ekuwedera anosanganisira nzira dzakasiyana siyana dzakadai sewelding yekudzivirira magetsi (ERW)uyewelding ye arc iri pasi pemvura (SAW).
Pazasi apa, maitiro ekugadziraKuwedera kweArc Yakadzikiswa Mumvura Yenguva refu (LSAW).
Semugadziri wemachubhu esimbi akasungirirwa, tinokwanisa kusangana nezvinodiwa nevatengi vedu vakasiyana-siyana, tichipa mhando dzakasiyana dzezvigadzirwa kuti tive nechokwadi chekuti mashandisirwo akanakisa uye mhando yechinhu chimwe nechimwe chinoshandiswa.
Kusungirirwa kwechubhu yeLSAW ine chidimbu chimwe chete kunovandudza simba rechubhu, zvichiita kuti ikwanise kumira kumanikidzwa kwakanyanya.
Pamusoro pezvo, yakakodzera kugadzirwa kwepombi dzesimbi dzine dhayamita hombe uye madziro akakora dzinosangana nezvinodiwa neASTM A334 Giredhi 6 mumaindasitiri makuru uye masisitimu ekutumira simba, senge mukuvaka nzvimbo hombe dzegasi rechisikigo rakanyungudutswa (LNG).
Panguva imwe chete, kudzora kwakanyatsojeka kunoita kuti dhayamita dzemapaipi neukobvu hwemadziro zvienderane kuitira kuti kubatana kuve kwakavimbika uye kudzivirira kubuda kwemvura mumasisitimu emapaipi.
Gadzirisai zvinhu nekudziisa kusvika patembiricha yakaenzana yeasingasviki 1550 °F [845 °C] mozotonhodza mumhepo kana mukamuri rekutonhodza rechoto chinodzora mhepo.
Kana kudziya kuchida, kuchafanirwa kutaurirana.
Kuumbwa kwemakemikari epaipi yesimbi yeASTM A334 Grade 6 kwakagadzirirwa kuve nechokwadi chekuti michina inoshanda zvakanaka pakupisa kwakaderera uye kusimba kwakakwana kwekushanda kwakavimbika mumamiriro ezvinhu akaoma.
| Giredhi | C (Kabhoni) | Mn (Manganese) | P (Fosforasi) | S (Sarufa) | Si (Silicone) |
| Giredhi 6 | 0.30 yepamusoro | 0.29-1.06 | yepamusoro 0.025 | yepamusoro 0.025 | miniti 0.10 |
| Pakudzikiswa kwega kwega kwe0.01% kabhoni pasi pe0.30%, kuwedzera kwe0.05% manganese pamusoro pe1.06% kuchabvumidzwa kusvika pa1.35% manganese. | |||||
Kune simbi dzeGiredhi 1 kana Giredhi 6, hazvibvumirwi kupa magiredhi ekusanganisa chero zvinhu kunze kweizvo zvinodiwa zvakananga. Zvisinei, zvinotenderwa kuwedzera zvinhu zvinodiwa kuti simbi ibude muoxidation.
Kuedza kwekushandisa simba papombi yesimbi yeGiredhi 6 kunoitwa pa -45°C [-50°F] senzira yekusimbisa kusimba uye kuramba simba kwezvinhu munzvimbo dzine tembiricha yakaderera.
Bvunzo iyi yakaitwa nekusarudza simba rekurova rakakodzera zvichibva pakukora kwemadziro epombi yesimbi.
Kureba kwemadziro kwakaverengerwa kwe1/32 inches.[0.80 mm] kuderera kweukobvu hwemadziro.
| Giredhi | Rockwell | Brinell |
| ASTM A334 Giredhi 6 | B 90 | 190 |
Pombi yega yega inofanira kuongororwa pasina kuparadza magetsi kana mvura zvichienderana neSpecial A1016/A1016M.
Kunze kwekunge zvataurwa neimwe nzira muodha yekutenga, mhando yebvunzo inofanira kushandiswa inofanira kunge iri sarudzo yemugadziri.
Muedzo weKubata-bata
Kuedzwa kweFre (Machubhu Asina Musono)
Kuedzwa kweFlange (Machubhu Akasungirirwa)
Muedzo weKudzosera Kutsetseka
1. Nzvimbo dzeGasi reChisikigo rakanyungudika (LNG): Nekuda kwehunhu hwayo hwakanaka hwekupisa kwakaderera, mapaipi esimbi eGiredhi 6 anoshandiswa zvakanyanya mukugadzira, kuchengetera uye kutakura LNG. Nzvimbo idzi dzinoda zvinhu zvinochengetedza simba rakawanda uye kusimba kwakanaka pakupisa kwakaderera.
2. Masisitimu ekufambisa mafuta negasi: inoshandiswa kutakura mahydrocarbon emvura kana gasi, akadai segasi repetroleum rakanyungudutswa (LPG) nedzimwe mvura dzinopisa zvishoma munzvimbo ine tembiricha yakaderera.
3. Tekinoroji yekuisa mufiriji nenzvimbo dzekuchengetera zvinhu zvinotonhora: Izvi zvinoshandawo kune dzimwe nzvimbo dzetekinoroji yefiriji, dzakadai senzira dzekuomesa nekuchengetedza chikafu mukugadzirisa chikafu nedzimwe nzira dzemakemikari dzinoda kushanda pakupisa kwakaderera.
4. Uinjiniya hwePolar: Mumapurojekiti einjiniya munzvimbo dziri pedyo negungwa, dzakadai senzvimbo dzekutsvagisa kwesainzi muArctic kana Antarctica, anoshandiswa kuvaka masisitimu ekutakura zvinhu akasimba uye akavimbika uye zvivakwa zvinofanirwa kukwanisa kutsungirira kupisa kwakanyanya uye mamiriro ekunze akaomarara.
5. Masisitimu ekutonhodza mhepo uye zvinochinja-chinja kupisa: Inoshandiswawo mumidziyo mikuru inotonhodza mhepo uye inochinja-chinja kupisa, iyo inofanirwa kushanda zvakanaka patembiricha yakaderera kuti ive nechokwadi chekuti system inoshanda zvakanaka uye yakachengeteka.
6. Uinjiniya hwemagetsi nenzvimbo dzemagetsi: Mumapurojekiti ekugadzira magetsi akakosha, akadai semamwe marudzi ezviteshi zvemagetsi, machubhu esimbi eGiredhi 6 anogona kushandiswa kubata mvura kana magasi patembiricha yakaderera kuitira kuti hurongwa hushande zvakachengeteka uye zvinobudirira.
EN 10216-4:P265NL: Inonyanya kushandiswa pamidziyo ye cryogenic pressure uye masisitimu e cryogenic piping, ine kusimba kwakanaka uye yakakodzera kushandiswa munzvimbo dzine cryogenic.
DIN 17173:TTSt41N: Yakagadzirirwa kushandiswa pakupisa kushoma, inopa mashandiro akanaka kwazvo pakupisa kushoma uye inowanzoshandiswa mumidziyo nemapaipi zvinoda nzvimbo dzekushanda dzinopisa zvakanyanya.
JIS G3460:STPL46: Inoshandiswa kumasisitimu ekufambisa mapaipi munzvimbo dzine tembiricha yakaderera, inokwanisa kutsungirira mamwe matambudziko nekumanikidzwa kwetembiricha yakaderera.
GB/T 18984:09Mn2V: Chinhu ichi chakagadzirwa nehunyanzvi mukugadzira machubhu esimbi asina musono ekushandiswa munzvimbo dzine tembiricha yakaderera, ane kusimba kwakanaka kwetembiricha yakaderera uye anodzivirira kutsemuka.
Pakusarudza zvinhu zvakafanana izvi, zvakakosha kuve nechokwadi chekuti makemikari azvo uye hunhu hwemakanika zvinosangana nezvinodiwa zvekushandiswa uye zvinodiwa pakushanda.
Maparamita aya anofanirwa kuenzaniswa zvakadzama uye mamwe maitiro ekuyedza uye ekupa zvitupa anogona kudiwa kuti vaone kukodzera uye kushanda kwezvinhu zvacho.
Kubva payakavambwa muna 2014, Botop Steel yave mutengesi anotungamira wepombi yesimbi yekabhoniKuchamhembe kweChina, inozivikanwa nebasa rakanaka kwazvo, zvigadzirwa zvemhando yepamusoro, uye mhinduro dzakakwana. Kambani iyi inopa mapaipi akasiyana-siyana esimbi yekabhoni nezvimwe zvigadzirwa zvine chekuita nayo, zvinosanganisira mapaipi esimbi asina musono, ERW, LSAW, uye SSAW, pamwe chete nehurongwa hwakazara hwemapipi nemaflange.
Zvigadzirwa zvayo zvehunyanzvi zvinosanganisirawo alloys dzemhando yepamusoro uye simbi dzisina ngura dzinoshandiswa mukugadzira, dzakagadzirirwa kusangana nezvinodiwa nemapurojekiti akasiyana-siyana emapombi.
