Machubhu eASTM A334 machubhu esimbi yekabhoni nealloy akagadzirirwa kushandiswa pakupisa kwakaderera uye anogadzirwa achishandisa nzira dzisina musono uye dzakasungirirwa.
Mamwe masayizi ezvigadzirwa anogona kunge asipo pasi pechirevo ichi nekuti ukobvu hwemadziro hwakakura hunokanganisa hunhu hwekupisa kushoma.
Kupatsanura Magiredhi
ASTM A334 ine mhando dzakasiyana dzemamiriro ekunze akaderera.
Giredhi 1, Giredhi 3, Giredhi 6, Giredhi 7, Giredhi 8, Giredhi 9, uye Giredhi 11.
Magiredhi anoenderana nawomachubhu esimbi emhando ye alloy ari eGiredhi 3, Giredhi 7, Giredhi 8, Giredhi 9, uye Giredhi 11.
Mhando yega yega yesimbi ine makemikari ayo chaiwo uye zvinodiwa zvehunhu hwemakanika, pamwe chete nezvinodiwa zvishoma zvekuyedza kupisa zvinofanirwa kuzadzikiswa.
Maitiro Ekugadzira
Machubhu acho anofanira kugadzirwa nemusonokana otomatikimaitiro ekunamirapasina kuwedzerwa kwesimbi yekuzadza pakushanda kwekunamira.
Kurapa Kupisa
Giredhi 1, 3, 6, 7, uye 9
Gadzirisai zvinhu nekudziisa kusvika patembiricha yakaenzana yeasingasviki 1550 °F [845 °C] mozotonhodza mumhepo kana mukamuri rekutonhodza rechoto chinodzora mhepo.
Kana kudziya kuchida, kuchafanirwa kutaurirana.
Kune machubhu esimbi asina musono chete emhando dziri pamusoro apa:
Dzorera uye dzora kupisa uye tembiricha yekushanda kwekupisa kusvika pakupisa kunobva pa1550 - 1750 °F [845 - 955℃] wozotonhodza muchoto chemhepo chinodzora kubva patembiricha yekutanga isiri pasi pe1550 °F [845 °C].
Giredhi 8
Sarudza chero ipi yenzira dzinotevera dzekurapa kupisa.
Yakadzimwa uye Yakagadzikana;
Yakajairika kaviri uye ine mwero.
Giredhi 11
Kana machubhu eGiredhi 11 achifanira kunyudzwa zviri muchibvumirano pakati pemutengi nemutengesi.
Kana machubhu eGiredhi 11 avharwa, anofanira kunge akajairwa ari pakati pe1400 - 1600℉[760 - 870 °C].
Kuumbwa kweMakemikoro kweASTM A334
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.
Miedzo yeASTM A334 Mechanical
Zvinodiwa zvehunhu hwemakanika hazvishande pamachubhu madiki pane 1/8 in. [3.2 mm] dhayamita yekunze uye ane ukobvu hwemadziro huri pasi pe0.015 in. [0.4 mm].
1. Nzvimbo Inodhonza
Kureba kushoma kwakaverengerwa pakuderedzwa kwega kwega kwe 1/32 inch [0.80 mm] muukobvu hwemadziro:
Pamachubhu madiki pane 1/2 in. [12.7 mm] dhayamita yekunze, huremu hwakatarwa hwemasampuli ezvidimbu hunofanira kushanda.
2. Miedzo yeKukanganisa
Sarudza tembiricha yakakodzera uye simba rekurova rinoenderana zvichienderana negiredhi uye ukobvu hwemadziro.
Simba reMhando
Kupisa Kwemhedzisiro
| Giredhi | Kupisa Kwekuongororwa Kwemhedzisiro | |
| ℉ | ℃ | |
| Giredhi 1 | -50 | -45 |
| Giredhi 3 | -150 | -100 |
| Giredhi 6 | -50 | -45 |
| Giredhi 7 | -100 | -75 |
| Giredhi 8 | -320 | -195 |
| Giredhi 9 | -100 | -75 |
3. Muedzo weKuoma
| Giredhi | Rockwell | Brinell |
| Giredhi 1 | B 85 | 163 |
| Giredhi 3 | B 90 | 190 |
| Giredhi 6 | B 90 | 190 |
| Giredhi 7 | B 90 | 190 |
| Giredhi 8 | — | — |
| Giredhi 11 | B 90 | 190 |
4. Muedzo weKutsvedza
Kuedzwa kumwe chete kwekutsetseka kunofanira kuitwa pamienzaniso kubva kumagumo ese echubhu imwe chete yakapedzwa yechikamu chimwe nechimwe asi kwete iyo inoshandiswa pakuyedzwa kweflare kana flange.
5. Kuedza Kupenya (Machubhu Asina Musono)
Bvunzo imwe chete inofanira kuitwa pamienzaniso inobva kumagumo echubhu imwe chete yakapedzwa yechikamu chimwe nechimwe, asi kwete iyo inoshandiswa pabvunzo yekupeta.
6. Kuedzwa kweFlange (Machubhu Akasungirirwa)
Bvunzo imwe chete yeflange inofanira kuitwa pamienzaniso kubva kumagumo ese echubhu imwe chete yakapedzwa yechikamu chimwe nechimwe, asi kwete iyo inoshandiswa pabvunzo yekupeta.
7. Muedzo weKudzosera Kutsetseka
Pamachubhu akasungirirwa, bvunzo imwe chete yekupeta-peta inofanira kuitwa pamuenzaniso kubva pahurefu hwemamita 460 echubhu yapera.
Bvunzo yeMagetsi Inoparadza kana Isingaparadze
Pombi yega yega inofanira kuongororwa nemagetsi pasina kuparadza kana kuongororwa ne hydrostatic zvichienderana neSpecial A1016/A1016M.
Zvikumbiro zveASTM A334 Steel Pipe
Inonyanya kushandiswa kutakura mvura kana magasi akadai segasi rechisikigo, mafuta, nemamwe makemikari patembiricha yakaderera.
1. Masisitimu emapaipi eCryogenic: inowanzoshandiswa mukuvaka masisitimu emapaipi ekufambisa mvura inoyerera (semuenzaniso gasi rechisikigo rakanyungudutswa, nitrogen yemvura). Nekuda kwehunhu hwayo hwakanaka hwe cryogenic, inokwanisa kuchengetedza simba remakanika uye kusimba pakupisa kwakaderera.
2. Zvinochinja-chinja kupisa uye zvinokonzeresa kupisa: Zvinochinja-chinja kupisa uye zvinokonzeresa kupisa zvinogona kushandiswa zvinobudirira kutonhodza kana kupisa michina, kunyanya mumaindasitiri emakemikari nepetrochemical.
3. Mitsipa yekumanikidza: inogona kushandiswawo kugadzira midziyo yekumanikidza yakagadzirirwa mabasa ekudzivirira kupisa. Midziyo iyi inogona kushandiswa kuchengetedza makemikari ekudzivirira kupisa kana kuti yemabasa eindasitiri chaiwo.
4. Masisitimu efiriji nemidziyo: Machubhu aya anoshandiswa kutakura mafiriji, kunyanya kana zvinhu zvisingapindi tembiricha yakaderera zvichidikanwa.
ASTM A334 Yakaenzana Standard
EN 10216-4: Inofukidza machubhu esimbi asina kusanganiswa uye akabatanidzwa, ane hunhu hwakatarwa hwekupisa kwakaderera.
JIS G 3460: ine chekuita nemachubhu esimbi alloy ekushandira cryogenic.
GB/T 18984: inoshanda kumachubhu esimbi asina musono emidziyo inodzvinyirira cryogenic. Inotsanangura zvakadzama dhizaini nekugadzirwa kwemachubhu esimbi akakodzera nzvimbo dzinopisa zvakanyanya.
Kunyange zvazvo zviyero izvi zvingasiyana muzvinhu zvakadzama uye zvinodiwa, zvakafanana muchinangwa chazvo chose uye mashandisirwo azvo, icho chiri chekuona kuchengetedzeka uye kushanda kwemapaipi esimbi munzvimbo dzine cryogenic.
Zvigadzirwa Zvedu Zvakabatana
Kubva payakatangwa muna 2014, Botop Steel yave kambani inotungamira mukutengesa mapaipi esimbi yekabhoni kuChamhembe kweChina, inozivikanwa nebasa rakanaka kwazvo, zvigadzirwa zvemhando yepamusoro, uye mhinduro dzakakwana.
Kambani iyi inopa mapaipi akasiyana-siyana esimbi yekabhoni nezvimwe zvigadzirwa zvinoenderana nazvo, zvinosanganisira mapaipi esimbi asina musono, ERW, LSAW, uye SSAW, pamwe chete nehurongwa hwakazara hwemapipi nemaflange. Zvigadzirwa zvayo zvehunyanzvi zvinosanganisirawo alloys dzemhando yepamusoro nesimbi dzisina ngura dzinogadzirwa neaustenitic, dzakagadzirirwa kusangana nezvinodiwa nemapurojekiti akasiyana-siyana emapaipi.
Matagi: ASTM A334, pombi yesimbi yekabhoni, astm a334 gr 6, astm a334 gr 1.
Nguva yekutumira: Chivabvu-20-2024