ASTM A334Icyiciro cya 1ni umuyoboro wa karubone udafite ubudodo kandi usudira kuri serivisi yubushyuhe buke.
Ifite karuboni ntarengwa ya 0,30%, manganese ya 0,40-1.60%, imbaraga ntarengwa zingana na 380Mpa (55ksi), nimbaraga za 205Mpa (30ksi).
Ikoreshwa cyane cyane mu gutwara amazi ahantu hafite ubushyuhe buke, ibikoresho bya firigo, nibindi bikorwa byinganda bisaba guhangana nubushyuhe buke.
ASTM A334 ifite amanota menshi yo guhangana nubushyuhe butandukanye bwo hasi, aribyo:Icyiciro cya 1, Icyiciro cya 3, Icyiciro cya 6, Icyiciro cya 7, Icyiciro cya 8, Icyiciro cya 9, Icyiciro cya 11.
Hariho ubwoko bubiri bwibyuma, ibyuma bya karubone nicyuma kivanze.
Icyiciro cya 1naIcyiciro cya 6byombi ni ibyuma bya karubone.
Birashobora kubyazwa umusaruroinzira idahwitse cyangwa isudira.
Mugukora ibyuma bitagira ibyuma, hariho inzira ebyiri zo gukora,Bishyushye birangiye cyangwa bikonje.
Guhitamo biterwa ahanini nimikoreshereze yanyuma yumuyoboro, ingano yumuyoboro, nibisabwa byihariye kubintu bifatika.
Hasi nigishushanyo cyibikorwa bishyushye birangiye.
UwitekakurangizaUmuyoboro udafite icyerekezo urimo gushyushya fagitire yubushyuhe bwo hejuru hanyuma ugakora umuyoboro uzunguruka cyangwa usohora.Iyi nzira ibera mubushyuhe bwinshi kandi ifasha kunoza microstructure yibikoresho, bityo bikongerera ubukana muri rusange.
Igikorwa cyo kurangiza gishyushye gikwiranye cyane cyane no gukora imiyoboro minini ya diametre n’uruzitiro rukomeye, rusanzwe rukoreshwa mu miyoboro itwara abantu benshi no mu miterere y’imiterere, kandi irakwiriye kubyara umusaruro mwinshi kubera igiciro gito ugereranije.
Ubukonjeibyuma bitagira icyuma bitunganyirizwa hamwe kurambura nyuma yibikoresho bimaze gukonjeshwa rwose kugirango bigere ku bunini nuburyo bukenewe.Ubu buryo butezimbere cyane uburinganire nuburinganire bwibicuruzwa, mugihe ubukonje bwakazi bukomera nabwo bwongera imiterere yubukorikori, nkimbaraga no kwihanganira kwambara.
Igishushanyo cyo gukonjesha gikwiranye cyane cyane no gukora imiyoboro ifite diametero ntoya hamwe nubunini bwurukuta ruto aho bisabwa neza kandi bifite ubuziranenge buhebuje kandi bikoreshwa cyane mubice nka sisitemu ya hydraulic, ibice byimodoka, nibikoresho byumuvuduko mwinshi kugirango uhure byihariye-imikorere ikenewe cyane, nubwo ku giciro cyo hejuru.
Ubusanzwe ushyushya ubushyuhe bumwe butarenze 1550 ° F [845 ° C] hanyuma ukonje mu kirere cyangwa mu cyumba gikonjesha cy’itanura rigenzurwa n’ikirere.
Niba ubushyuhe bukenewe, bizakenera kumvikana.
Kubyiciro byavuzwe haruguru byicyuma kitagira icyuma gusa:
Shyushya kandi ugenzure akazi gashyushye hamwe nubushyuhe bwibikorwa bishyushye kugeza ubushyuhe burangiye kuva 1550 - 1750 ° F [845 - 955 ℃] hanyuma ukonje mu itanura ryikirere riyobowe nubushyuhe bwambere butari munsi ya 1550 ° F [ 845 ° C].
Chimie yo mu cyiciro cya 1 yagenewe kuringaniza imbaraga, ubukana, hamwe nubushyuhe buke bwo gukoreshwa mubisabwa mubushyuhe buke.
| Icyiciro | C.(Carbone) | Mn(Manganese) | P.(Fosifore) | S.(Amazi meza) |
| Icyiciro cya 1 | max 0,30% | 0.40-1.06% | max 0.025% | max 0.025% |
| Kuri buri kugabanuka kwa 0,01% karubone munsi ya 0,30%, kwiyongera kwa 0,05% manganese hejuru ya 1.06% bizemererwa kugera kuri 1.35%. | ||||
Carbone nikintu cyingenzi cyongera imbaraga nubukomezi bwibyuma, ariko mubisabwa ubushyuhe buke, ibintu byinshi bya karubone bishobora kugabanya ubukana bwibintu.
Icyiciro cya 1, hamwe na karubone ntarengwa ya 0,30%, ishyirwa mubyuma bya karuboni nkeya kandi igenzurwa kurwego rwo hasi kugirango igabanye ubukana bwubushyuhe buke.
Kubara byibuze kuramba kuri buri 1/32 muri. [0,80 mm] kugabanuka mubugari bwurukuta.
Ubushakashatsi bwingaruka ku cyiciro cya 1 cyicyuma kirakorwakuri -45 ° C [-50 ° F], yashizweho kugirango igenzure ubukana ningaruka zo kurwanya ibintu mubushyuhe buke cyane.Ikizamini gikozwe muguhitamo ingufu zikwiye zishingiye kumubyimba wurukuta rwicyuma.
Ingero zerekana ingaruka zigomba kuba kumurongo woroshye, Ubwoko bwa Charpy, ukurikije uburyo bwikizamini E23.Andika A, hamwe na V.
Uburyo bubiri busanzwe bwo gupima ubukana ni ibizamini bya Rockwell na Brinell.
| Icyiciro | Rockwell | Brinell |
| ASTM A334 Icyiciro cya 1 | B 85 | 163 |
Buri muyoboro ugomba kugeragezwa udasenya amashanyarazi cyangwa hydrostatike ukurikije STM A1016 / A1016M.Keretse niba byavuzwe ukundi muburyo bwo kugura, ubwoko bwikizamini bugomba gukoreshwa bugomba guhitamo uwabikoze.
Usibye ibimenyetso byerekanwe muri A1016 / A1016M, ikimenyetso kizaba kirimo ubushyuhe bwarangiye, bukonje bukonje, butagira ikidodo, cyangwa gusudira, hamwe n’inyuguti "LT" zikurikirwa nubushyuhe bwakorewe ikizamini cy’ingaruka.
Iyo umuyoboro wibyuma urangiye udafite ubunini buhagije kugirango ubone ingero ntoya, ikimenyetso ntigishobora kubamo inyuguti LT hamwe nubushyuhe bwikizamini bwerekanwe.
Byakoreshejwe cyane mubikorwa bitandukanye byinganda bisaba gukora ubushyuhe buke.
Gutwara amazi ya Cryogenic: Umuyoboro wo mu cyiciro cya 1 ukoreshwa cyane mu gutwara ibintu bya kirogenike nka gaze isanzwe (LNG), gaze ya peteroli yanduye (LPG), nindi miti ya kirogenike.Aya mazi akenera gutwarwa neza mubushyuhe buri munsi y’ibidukikije, kandi umuyoboro w’icyuma wo mu cyiciro cya 1 ugumana imiterere yumubiri nubusugire bwimiterere kuri ubu bushyuhe buke.
Sisitemu yo gukonjesha n'ibikoresho: Akenshi bikoreshwa mugutanga ibicuruzwa bikonje muri sisitemu.
Guhindura ubushyuhe hamwe na kondereseri: Guhindura ubushyuhe hamwe na kondereseri nibintu byingenzi mubikorwa byinganda ningufu, akenshi bifashisha ibyuma byo mucyiciro cya 1 nkibikoresho byubaka.Ibi bikoresho bisaba ibikoresho bikomeza imbaraga nyinshi hamwe no kurwanya ruswa kubushyuhe buke kugirango harebwe igihe kirekire kandi cyizewe.
Ububiko bukonje nubukonje: Mububiko bukonje nibindi bikoresho bya firigo, sisitemu yo kuvoma igomba guhuzwa nubushyuhe buke cyane.icyiciro cya 1 icyuma gishobora gukoreshwa mukubaka sisitemu yo kuvoma muri ibyo bikoresho kubera ubushobozi bwayo bwo gukomeza gukorera ahantu hakonje nta gutsindwa.
1. EN 10216-4: P215NL, P255QL;
2. DIN 17173: TTSt35N;
3. JIS G3460: STPL 380;
4. GB / T 18984: 09Mn2V.
Ibipimo n amanota yagenewe kugira ibintu bisa cyangwa bihwanye na ASTM A334 Icyiciro cya 1, urebye imiterere yubushyuhe buke nibindi bipimo bifatika.
Kuva yashingwa mu 2014, Botop Steel yabaye iyambere mu gutanga imiyoboro ya karubone mu majyaruguru y’Ubushinwa, izwiho serivisi nziza, ibicuruzwa byiza, ndetse n’ibisubizo byuzuye.Isosiyete itanga imiyoboro inyuranye y’ibyuma bya karubone n’ibicuruzwa bifitanye isano na byo, birimo icyuma, ERW, LSAW, hamwe n’icyuma cya SSAW, ndetse n’umurongo wuzuye w’ibikoresho bya flanges na flanges.
Ibicuruzwa byayo bidasanzwe birimo kandi amavuta yo mu rwego rwo hejuru hamwe na austenitis ibyuma bitagira umuyonga, bigenewe guhuza ibyifuzo byimishinga itandukanye.
