ASTM A252 Icyiciro cya 3ni ibikoresho bisanzwe bikoreshwa nkumuyoboro wa silindrike.
Icyiciro cya 3 cyicyuma cyicyuma nticyagarukira kubikorwa byihariye kandi gishobora gukorwa hakoreshejwe uburyo butandukanye bwo guhimba imiyoboro, harimoSMLS(nta kashe),SAW(yarengewe arc gusudira), naEFW(electro-fusion irasudira).Ihindagurika ryemerera guhuza nibikorwa bitandukanye byubuhanga hamwe nibisabwa.
Nki cyiciro cyo hejuru murwego rwa A52, gifite imiterere yubukanishi ifite imbaraga nkeya zingana na 310 MPa nimbaraga ntoya ya 455 MPa kandi irashobora gukoreshwa nkibikoresho byimitwaro ihoraho cyangwa nkigikonoshwa cyo guteramo. -shyira ibirundo bya beto.
UwitekaASTM A252bisanzwe bishyira mubyuma byicyuma mubyiciro bitatu kugirango bikwiranye nibisabwa bitandukanye nibisabwa.Ibyiciro bitatu ni:
Icyiciro cya 1, Icyiciro cya 2, n'icyiciro cya 3.
Isosiyete yazanye ibikoresho byuzuye bya JCOE LSAW ibikoresho byo gukora ibyuma n’ibikoresho byo gupima, kabuhariwe mu gukora ibyuma bikikijwe n'inkuta nini, nini ya diameter nini ya LSAW hamwe na DSAW (impande zombi zirengewe arc gusudira).
Ibicuruzwa bisobanurwa ni:
Diameter yo hanze: DN 350 - 1500;
Uburebure bw'urukuta: 8 - 80 mm;
Ibirundo by'imiyoboro bigomba kuba impera yoroheje.
Impera zigomba gucanwa cyangwa gukata imashini no kuzimya.
Ku bijyanye naImpera, inguni yimpera igomba kuba30 - 35 °.
Botop Steelitanga intera nini yujuje ubuziranenge ASTM A52 imiyoboro yicyuma.Nyamuneka nyamuneka kutwandikira kubyo usabwa.
Ibyuma bigomba gukorwa na kimwe cyangwa byinshi mubikorwa bikurikira: gufungura-umuriro, shingiro-ogisijeni, cyangwa itanura ryamashanyarazi.
A252 izakorwa nanta nkomyi, amashanyarazi arwanya, flash weld, cyangwafusion weldinzira.
Ikirundo cy'ibirundo byo gusudira bigomba kubabirebire, butt-butt, cyangwaYamazaki.
Kugirango hamenyekane ubuziranenge n'imikorere y'ibirundo by'ibyuma, ni ngombwa guhitamo inzira nziza yo gukora.
Inzira ya LSAW (SAWL) ninziza kuri diameter nini, umuyoboro wibyuma, cyane cyane mubwubatsi nibikorwa remezo bisaba ubushobozi bwo gutwara ibintu byinshi no kubaka umusingi wimbitse.Bitewe n'imbaraga zayo zisumba izindi, ubushobozi bwo gutwara imizigo, hamwe n'imihindagurikire y'ikirere, irashobora guhuza n'imiterere itandukanye yimiterere ya geologiya mugihe itanga inyungu zo kwishyiriraho vuba no kuramba.
JCOEni uburyo busanzwe bwo gukora mu gukora umuyoboro wa LSAW wibyuma, ufite ibyiza byo gukora neza, ubuziranenge, ubushobozi bunini bwo gukora diameter, uburinganire bwuzuye, guhuza n'imihindagurikire, hamwe nubukungu, ibyo bikaba byarabaye uburyo bwo gukora imiyoboro ikunzwe muri byinshi binini- imishinga minini yubuhanga.
Icyuma kigomba kuba kirimontarenze 0.050% fosifori.
Kugabanya ibirimo fosifore mubyuma ni ukureba ko ibyuma bifite imiterere yubukanishi, cyane cyane iyo bikoreshwa mubikorwa byubaka nko kubaka piling.
Iyi mbogamizi ifasha kurinda ibyuma gucika intege kubushyuhe buke, bityo bikarinda umutekano wacyo no kwizerwa mugukoresha.
Kubindi bintu bikubiyemo, nta bisabwa.
Ibi ni ukubera ko intego nyamukuru yibitereko byimyanda ari ukureba niba imiyoboro ifite imbaraga zihagije zubaka hamwe nubukomezi, nibintu byingenzi kugirango bikoreshwe mubikorwa byubaka.
Kubitereko byikirundo, hibandwa cyane kumiterere yimashini yigituba, nkimbaraga zumusaruro, imbaraga zingutu, hamwe nubukomere, kuko iyi mitungo ifitanye isano itaziguye nubushobozi bwo gutwara imizigo hamwe nuburyo butajegajega bwibirundo mubirundo bifatika. .
AImbonerahamwe 2 itanga agaciro ntarengwa kabaruwe:
Iyo uburebure bwurukuta rwerekanwe buri hagati yerekanwa hejuru, agaciro ntarengwa ko kuramba kugenwa gutya:
Icyiciro cya 3: E = 32t + 10.00 [E = 1.25t + 10.00]
E: kurambura muri 2 muri. [50.8 mm],%;
t: byerekanwe urukuta rw'izina, muri. [mm].
Icyiciro cya ASTM A252 Icyiciro cya 3 cyizeza umutekano no kwizerwa kubirundo byikariso ikoreshwa mugushiraho ibisabwa byibuze kuri iyi mashini.
Ku bipimo by'imiyoboro itashyizwe ku mbonerahamwe yuburemere bwa pipe, uburemere kuri buri burebure burashobora kubarwa ukoresheje formula.
w = C × (Dt) × t
w: uburemere kuri buri burebure, Ilb / ft [kg / m];
D: byerekanwe hanze ya diameter, muri. [mm];
t: byerekanwe urukuta rw'izina, muri. [mm];
C: 0.0246615 kubara mubice bya SI na 10.69 kubara mubice bya USC.
Ibiharuro byavuzwe haruguru bishingiye ku kwibwira ko ubucucike bw'umuyoboro w'icyuma ari 7,85 kg / dm³.
ASTM A252 Icyiciro cya 3 gifite imbaraga nyinshi nubukomere kubutaka butandukanye nibisabwa gutwara imitwaro.Umuyoboro wibyuma ukoreshwa mubisanzwe bikurikira:
1. Kubaka urufatiro.
2. Ibyambu n'ibyambu.Kugirango hongerwe igihe kirekire no kurwanya kwangirika kwimiyoboro yicyuma, hashyirwaho impuzu kugirango zitange ubundi burinzi.
3. Amazi: ASTM A252 Icyiciro cya 3 cyicyuma gikoreshwa mugushimangira inkombe zinzuzi no kurinda umwuzure mukubaka ingomero, gufunga, nibindi bigo byamazi.
4. Imishinga y'ingufu: Mu mbaraga z'umuyaga, ibyuma bya peteroli, hamwe nindi mishinga remezo yingufu, iyi miyoboro yicyuma ikoreshwa nkibikoresho byunganira kugirango ibikoresho bikore neza.
5. Ibikoresho byo gutwara abantu.
Kuva yashingwa mu 2014,Botop Steelyabaye umuyobozi wambere utanga imiyoboro ya karubone mumajyaruguru yUbushinwa, izwiho serivisi nziza, ibicuruzwa byiza, nibisubizo byuzuye.
Botop Steelitanga imiyoboro itandukanye ya karubone nibicuruzwa bifitanye isano nayo, harimo icyuma, ERW, LSAW, na SSAW ibyuma, hamwe numurongo wuzuye wibikoresho bya flanes na flanges.Ibicuruzwa byayo bidasanzwe birimo kandi amavuta yo mu rwego rwo hejuru hamwe na austenitis ibyuma bitagira umuyonga, bigenewe guhuza ibyifuzo byimishinga itandukanye.
ASTM A252 GR.2 GR.3 Umuyoboro udafite ibyuma
ASTM A252 GR.3 SSAW Umuyoboro wibyuma
AS 1579 SSAW Umuyoboro wamazi nicyuma
EN10219 S355J0H LSAW (JCOE) Umuyoboro w'icyuma
EN 10219 S275J0H / S275J2H ERW Umuyoboro wibyuma Kubaka
BS EN10210 S355J0H Umuyoboro wa Carbone udafite ibyuma
EN10210 S355J2H UMUYOBOZI W'IMBARAGA ZA ERW
API 5L PSL1 & PSL2 GR.B Longitudinal Submerged-Arc Welded umuyoboro
ASTM A501 Icyiciro B LSAW Carbone Icyuma Cyubaka
ASTM A672 B60 / B70 / C60 / C65 / C70 LSAW Umuyoboro wa Carbone
ASTM A671 / A671M Umuyoboro w'icyuma LSAW
ASTM A500 Icyiciro C Icyuma Cyubatswe Cyuma
