Mu rwego rwo gukora imiyoboro, hagomba gukurikizwa ibipimo bitandukanye nibisobanuro kugirango harebwe ubuziranenge n'umutekano byibicuruzwa byanyuma.ASTM A139ni kimwe mubisanzwe bigira uruhare runini mugukora imiyoboro yicyuma kubikorwa bitandukanye.
ASTM A139 nigipimo gisanzwe cya electrofusion (arc) icyuma gisudira (NPS 4 no hejuru).Ikubiyemo ibisabwa kugirango amashanyarazi azenguruke (arc) yasuditswe, urukuta ruto, umuyoboro wibyuma bya austenitike kugirango ubone ruswa cyangwa ubushyuhe bwinshi.Ibipimo ngenderwaho byerekana ibisabwa kubikoresho, inzira yo gukora, ibipimo hamwe nubukanishi bwimiyoboro yicyuma.
Ibisabwa ibikoresho bya ASTM A139 byerekana ubwoko n amanota yicyuma gishobora gukoreshwa mugukora imiyoboro.Ibi birimo imiti yimiti yicyuma, igomba kuba irimo ijanisha ryihariye ryibintu nka karubone, manganese, fosifore, sulfure na silikoni.Ibi bisabwa nibyingenzi kugirango ibyuma bikoreshwa muriimiyoboroyujuje imbaraga zikenewe hamwe no kurwanya ruswa.
Igikorwa cyo gukora umuyoboro wa ASTM A139 kirimo gusudira amashanyarazi (arc), ikoresha arc amashanyarazi kugirango itange ubushyuhe bukenewe mu gusudira imirongo yicyuma muburyo bwa silindrike.Iyi nzira iragenzurwa neza kugirango barebe ko gusudira bifite ubuziranenge kandi butagira inenge.Igipimo cyerekana kandi uburyo bwo kugenzura gusudira, nko gupima ultrasonic no kugerageza kugorora kugorora, kugirango byuzuze ubuziranenge busabwa.
Ukurikije ibipimo, ASTM A139 yerekana ibisabwa kubunini bwa pipe, uburebure bwurukuta, n'uburebure.Ibi birimo kwihanganira byihariye kubipimo kugirango umenye neza ko umuyoboro wujuje ibyangombwa bikenewe kugirango ukoreshwe.Ibi bisabwa murwego ni ngombwa kugirango tumenye neza ko imiyoboro yashyizweho kandi ihujwe neza muri porogaramu zitandukanye.
Ibikoresho bya mashini nkimbaraga zingana, imbaraga zitanga umusaruro, no kuramba nabyo bigaragara muri ASTM A139.Iyi miterere ni ingenzi mukumenya imbaraga nigikorwa cyumuyoboro mubikorwa bitandukanye.Igipimo gishyiraho ibisabwa byibuze kuri iyi mashini kugirango harebwe niba umuyoboro ushobora guhangana n’umuvuduko uteganijwe, ubushyuhe n’ibidukikije.
Muri rusange, ASTM A139 igira uruhare runini mugukoraimiyoboro y'icyumaKuri Porogaramu zitandukanye.Mugusobanura ibikoresho, uburyo bwo gukora, ibipimo hamwe nubukanishi bwimiyoboro, ibipimo byemeza ko ibicuruzwa byanyuma byujuje ubuziranenge numutekano.Iha abayikora, injeniyeri nabakoresha amaherezo kwizera ko umuyoboro uzakora nkuko biteganijwe mubisabwa.
Muri make, gusobanukirwa n'akamaro ka ASTM A139 mugukora imiyoboro ningirakamaro kugirango harebwe ubuziranenge n'umutekano by'ibicuruzwa biva mu byuma.Ibipimo byerekana ibisabwa bikenewe kubikoresho, inzira yo gukora, ibipimo hamwe nubukanishi kugirango harebwe niba imiyoboro yujuje ubuziranenge bukenewe nubuziranenge.Mugukurikiza ASTM A139, abayikora barashobora gukora umuyoboro mwiza wibyuma byujuje ubuziranenge bwinganda zitandukanye nibisabwa.
Igihe cyo kohereza: Ukuboza-28-2023