JIS G3454 carbon ERW zitsulo chitoliro,
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| Mtundu | Zaukadaulo | Zakuthupi | Standard | Gulu | Kugwiritsa ntchito |
| Electric Resistance Welded (RW) chitoliro chachitsulo | Kuthamanga Kwambiri | Chitsulo cha Carbon | API 5L PSL1&PSL2 | GR.B,X42,X46,X52,X60,X65,X70, etc. | Kuyendetsa mafuta ndi gasi |
| Chithunzi cha ASTM A53 | G.A ,GR.B | Za Kapangidwe (Piling) | |||
| ASTM A252 | GR.1, GR.2,GR.3 | ||||
| Chithunzi cha EN10210 | S275JRH,S275J0H,S355J0H,S355J2H, etc. | ||||
| Chithunzi cha EN10219 | S275JRH,S275J0H,S355J0H,S355J2H, etc. | ||||
| Chithunzi cha JIS G3452 | SGP, etc | Mayendedwe a Low-pressure fluid | |||
| Chithunzi cha JIS G3454 | STPG370,STPG410, etc | Kuyendetsa kwa High-pressure fluid | |||
| Chithunzi cha JIS G3456 | STPG370,STPG410,STPG480, etc | kutentha zitsulo mipope |
Chitoliro choyitanidwa motere ndi cha ntchito yokakamiza pa kutentha kwakukulu kwa 350 ℃.
Chitoliro chopanda kanthu, ❖ kuyanika kwakuda kapena kuviika kotentha kwa zinki (mwamakonda);
M'mitolo yokhala ndi gulaye ziwiri za thonje;
Zonsezi zimathera ndi otetezera mapeto;
Mapeto omveka, mapeto a bevel (Pakafunika ndi wogula ndi S≤22mm, mapeto a chitoliro ayenera kugwedezeka, digiri: 30 ° (+5 ° ~ 0 °), ndipo makulidwe a khoma la muzu sakuchepetsedwa ndi <2.4 mm.);
Kuyika chizindikiro.
Gulu ndi Chemical Composition (％)
| Gulu | C≤ | Si≤ | Mn | P≤ | S≤ |
| Chithunzi cha STPG370 | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 |
| Chithunzi cha STPG410 | 0.30 | 0.35 | 0.30-1.00 | 0.040 | 0.040 |
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| Mechanical Properties | ||||||
| Gulu | Kulimba kwamakokedwe | Zokolola mphamvu | Elongation % | |||
| N/m㎡ | N/m㎡ | No.11 kapena No.12 zidutswa zoyesa | No. 5 zidutswa zoyesa | No. 4 mayeso chidutswa | ||
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| Longitudinal | Chodutsa | Longitudinal | Chodutsa | |
| Chithunzi cha STPG370 | 370 min | 215 min | 30 min | 25 min | 28 min | 23 min |
| Chithunzi cha STPG410 | 410 min | 245 min | 25 min | 20 min | 24 min | 19 min |
Kulekerera kwa OD ndi WT
| Gawo | Kulekerera pa OD | Kulekerera pa WT | ||
| Chitoliro chachitsulo chozizira cha ERW | 24A kapena pansi | +/- 0.3mm | Pafupi ndi 3 mm
3 mm kapena kuposa | +/- 0.3mm
+/- 10% |
| 32A kapena kupitirira | +/- 0.8% |
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| Kwa mapaipi a kukula mwadzina 350A kapena kupitilira apo, kulolerana kwa OD kumatha kutsimikiziridwa ndi kutalika kwa circumferential.Pankhaniyi, kulolerana kudzakhala +/- 0.5% | ||||
JIS G3454 ERW chitsulo chopondaponda chitoliro ntchito ndi mbali yofunika ya ERW zitsulo chitoliro kupanga ndi kupanga.JIS G3454 ndi Japan Industrial Standard yofotokozera mapaipi achitsulo a carbon pa ntchito yothamanga kwambiri.ERW (electric resistance welded) chitoliro chachitsulo chimapangidwa ndi njira yomwe m'mphepete mwa mapepala achitsulo kapena mizere imatenthedwa ndikuphatikizidwa pamodzi pansi pa kukakamizidwa, kupanga chitoliro chopanda msoko ndi cholimba.Ntchito zosindikizira zomwe zimagwiritsidwa ntchito popanga mapaipi achitsulo a JIS G3454 ERW amagwira ntchito yofunika kwambiri powonetsetsa kuti mapaipiwa ndi odalirika komanso odalirika.Ntchito zopondaponda zimaphatikizapo kugwiritsa ntchito makina oponderezedwa kwambiri kuti apange mapaipi amiyeso yomwe mukufuna komanso zomwe mukufuna.Njirayi imatsimikizira kuti chitolirocho chimakhala ndi mapeto osalala komanso olondola, komanso makulidwe a khoma lokhazikika muutali wake wonse.Chimodzi mwazabwino zazikulu za JIS G3454 ERW zitsulo zosindikizira chitoliro chachitsulo ndikutha kupanga mapaipi olondola kwambiri komanso kukhulupirika kwa weld.Ntchito zosindikizira zimalola kuwongolera mwamphamvu pakupanga, kuonetsetsa kuti chitolirocho chikukwaniritsa zofunikira ndi zofunikira.Kuphatikiza apo, kugwiritsa ntchito makina oponderezedwa kwambiri panthawi yopondaponda kumathandizira kupanga mapaipi okhala ndi mphamvu zapadera komanso kulimba, kuwapangitsa kukhala oyenera kugwiritsidwa ntchito m'mafakitale monga mafuta ndi gasi, zomangamanga, ndi magalimoto.Kuphatikiza apo, JIS G3454 ERW zitsulo zosindikizira chitoliro zimatha kupanga mapaipi osalala komanso okongola.Makina omwe amagwiritsidwa ntchito popondaponda amatha kupukuta ndi kuyeretsa pamwamba pa chitoliro, zomwe zimapangitsa kuti pakhale chinthu chowoneka bwino.Izi ndizofunikira makamaka pamapulogalamu omwe mapaipi amawonekera kapena amawonekera chifukwa amawonjezera mawonekedwe onse ndikuwonetsetsa kutsirizika kwapamwamba.Pomaliza, JIS G3454 ERW Steel Pipe pressing services ndi gawo lofunika kwambiri pakupanga, kuwonetsetsa kupanga mapaipi apamwamba kwambiri komanso odalirika pazogwiritsa ntchito zosiyanasiyana.Imatsimikizira kulondola kwa mawonekedwe, kukhulupirika kwa weld, ndi malo osalala, kupanga mapaipiwa kukhala oyenera mafakitale ndi ntchito zosiyanasiyana.
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