Chitoliro chachitsulo cha JIS G3454 cha kaboni ERW,
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| Kalembedwe | Zaukadaulo | Zinthu Zofunika | Muyezo | Giredi | Kagwiritsidwe Ntchito |
| Chitoliro chachitsulo cholimba chamagetsi cholimba (ERW) | Kuthamanga Kwambiri | Chitsulo cha Kaboni | API 5L PSL1 ndi PSL2 | GR.B,X42,X46,X52,X60,X65,X70, ndi zina zotero | Kutumiza mafuta ndi gasi |
| ASTM A53 | GR.A ,GR.B | Kapangidwe (Kuyika) | |||
| ASTM A252 | GR.1, GR.2,GR.3 | ||||
| BS EN10210 | S275JRH,S275J0H,S355J0H,S355J2H,etc | ||||
| BS EN10219 | S275JRH,S275J0H,S355J0H,S355J2H,etc | ||||
| JIS G3452 | SGP, ndi zina zotero | Kutumiza kwa madzi otsika mphamvu | |||
| JIS G3454 | STPG370, STPG410, ndi zina zotero | Kutumiza kwa madzi othamanga kwambiri | |||
| JIS G3456 | STPG370, STPG410, STPG480, ndi zina zotero | mapaipi achitsulo otentha kwambiri |
Chitoliro cholamulidwa motsatira izi ndi cha ntchito yokakamiza pa kutentha koyenera kwa 350℃.
Chitoliro chopanda kanthu, chophimba chakuda kapena choviikidwa ndi zinki chotentha (chosinthidwa);
Mu mitolo yokhala ndi zingwe ziwiri za thonje;
Mapeto onse awiri ali ndi zotetezera kumapeto;
Mapeto osalala, mapeto a bevel (Ngati wogula akufuna ndi S≤22mm, mapeto a paipi ayenera kukhala opindika, digiri: 30° (+5°~0°), ndipo makulidwe a khoma la muzu sachepetsedwa ndi <2.4mm.);
Kulemba.
Kapangidwe ka Mankhwala ndi Kapangidwe kake (％)
| Giredi | C≤ | Si≤ | Mn | P≤ | S≤ |
| STPG370 | 0.25 | 0.35 | 0.30~0.90 | 0.040 | 0.040 |
| STPG410 | 0.30 | 0.35 | 0.30~1.00 | 0.040 | 0.040 |
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| Katundu wa Makina | ||||||
| Giredi | Kulimba kwamakokedwe | Mphamvu yobereka | Kutalikitsa % | |||
| N/ m㎡ | N/ m㎡ | Zidutswa zoyesera Nambala 11 kapena Nambala 12 | Zidutswa zoyesera nambala 5 | Chigawo choyesera nambala 4 | ||
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| Longitudinal | Zosintha | Longitudinal | Zosintha | |
| STPG370 | Mphindi 370 | Mphindi 215 | Mphindi 30 | Mphindi 25 | Mphindi 28 | Mphindi 23 |
| STPG410 | Mphindi 410 | Mphindi 245 | Mphindi 25 | Mphindi 20 | Mphindi 24 | Mphindi 19 |
Kulekerera kwa OD ndi WT
| Gawo | Kulekerera pa OD | Kulekerera pa WT | ||
| Chitoliro cha Zitsulo cha ERW chozizira chomalizidwa | 24A kapena pansi | +/-0.3mm | Pansi pa 3mm
3mm kapena kupitirira apo | +/-0.3mm
+/-10% |
| 32A kapena kupitirira apo | +/-0.8% |
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| Pa mapaipi a kukula kwapadera kwa 350A kapena kupitirira apo, kulekerera kwa OD kungadalire kutalika kozungulira. Pankhaniyi, kulekerera kuyenera kukhala +/-0.5% | ||||
Ntchito yoponda mapaipi achitsulo a JIS G3454 ERW ndi gawo lofunika kwambiri pakupanga ndi kupanga mapaipi achitsulo a ERW. JIS G3454 ndi muyezo wa mafakitale waku Japan womwe umatchula mapaipi achitsulo cha kaboni kuti agwiritsidwe ntchito poponda kutentha kwambiri. Chitoliro chachitsulo cha ERW (choponda magetsi choponda) chimapangidwa ndi njira yomwe m'mbali mwa mapepala achitsulo kapena zingwe zimatenthedwa ndikusakanikirana pamodzi pansi pa kupanikizika, ndikupanga chitoliro chopanda msoko komanso cholimba. Ntchito zoponda zomwe zimagwiritsidwa ntchito popanga mapaipi achitsulo a JIS G3454 ERW zimagwira ntchito yofunika kwambiri pakutsimikizira ubwino ndi kudalirika kwa mapaipi awa. Ntchito zoponda zimaphatikizapo kugwiritsa ntchito makina amphamvu kwambiri kuti apange mapaipi malinga ndi miyeso ndi zofunikira zomwe mukufuna. Njirayi imatsimikizira kuti chitoliro chili ndi malekezero osalala komanso olondola, komanso makulidwe ofanana a khoma kutalika kwake konse. Chimodzi mwazabwino zazikulu za ntchito zoponda mapaipi achitsulo a JIS G3454 ERW ndi kuthekera kopanga mapaipi olondola kwambiri komanso osasunthika. Ntchito zoponda zimalola kuwongolera kwambiri njira zopangira, kuonetsetsa kuti chitolirocho chikukwaniritsa miyezo ndi zofunikira zofunika. Kuphatikiza apo, kugwiritsa ntchito makina amphamvu kwambiri panthawi yopondaponda kumathandiza kupanga mapaipi amphamvu komanso olimba kwambiri, zomwe zimapangitsa kuti akhale oyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana monga mafuta ndi gasi, zomangamanga, ndi magalimoto. Kuphatikiza apo, ntchito zopondaponda mapaipi achitsulo za JIS G3454 ERW zimathanso kupanga mapaipi osalala komanso okongola. Makina omwe amagwiritsidwa ntchito popondaponda amatha kupukuta ndikuyeretsa pamwamba pa chitoliro, zomwe zimapangitsa kuti chikhale chokongola kwambiri. Izi ndizofunikira kwambiri pa ntchito zomwe mapaipi amaonekera kapena kuwoneka chifukwa zimawonjezera mawonekedwe onse ndikutsimikizira kuti ali ndi mawonekedwe abwino kwambiri. Pomaliza, ntchito zopondaponda mapaipi achitsulo za JIS G3454 ERW ndi gawo lofunikira kwambiri pakupanga, kuonetsetsa kuti mapaipi apamwamba komanso odalirika a ntchito zosiyanasiyana zopondaponda. Zimatsimikizira kulondola kwa miyeso, umphumphu wa weld, komanso malo osalala, zomwe zimapangitsa mapaipi awa kukhala oyenera mafakitale ndi ntchito zosiyanasiyana.
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