Chithunzi cha JIS G3452ndi muyezo Japan amene amatchula welded mpweya zitsulo chitoliro cha mayendedwe nthunzi, madzi, mafuta, gasi, mpweya, etc. pa zopanikizika ndi otsika ntchito.JIS G 3452 ili ndi giredi imodzi yokha, SGP, yomwe imatha kupangidwa ndi kuwotcherera kukana (RW) kapena kuwotcherera matako.
Mapaipi achitsulo a JIS G 3452 adzapangidwa pogwiritsa ntchito kuphatikiza koyenera kwa njira zopangira mapaipi ndi njira zomaliza.
| Chizindikiro wa kalasi | Chizindikiro cha kupanga njira | Gulu la zokutira zinc | |
| Njira yopanga mapaipi | Njira yomaliza | ||
| SGP | Kukana kwamagetsi welded: E Zida zowotcherera: B | Zomaliza: H Zomaliza: C Momwe kukana kwamagetsi kumawotcherera: G | Mapaipi akuda: mapaipi osapatsidwa zokutira zinki Mipope yoyera: mapaipi opaka zinki |
Mapaipi nthawi zambiri amaperekedwa ngati opangidwa.Mipope yoziziritsa yozizira iyenera kutsekedwa pambuyo popanga.
Ngati chitolirocho chimapangidwa ndi ERW, ma welds omwe ali mkati ndi kunja kwa chitoliro adzachotsedwa kuti apeze weld yosalala pamphepete mwa chitoliro.
Ngati zochepa chifukwa cha m'mimba mwake chitoliro kapena zipangizo, etc., kuwotcherera pamwamba pamwamba sangachotsedwe.
Kukonzekera: Pamaso otentha-kuviika galvanizing, pamwamba pa zitsulo chitoliro ayenera bwinobwino kutsukidwa ndi sandblasting, pickling, etc.
Makulidwe: Pa zokutira zinki, ingot yosungunuka ya zinki Kalasi 1 yofotokozedwa mu JIS H 2107 kapena zinki yokhala ndi mtundu wofanana ndi izi iyenera kugwiritsidwa ntchito.
Zina: Zofunikira zina zonse zopangira malata zili molingana ndi JIS H 8641.
Mayeso: Kuyeza kufanana kwa zokutira zamagalasi molingana ndi JIS H 0401 Ndime 6.
Kuphatikiza pa zinthu zomwe zaperekedwa, ma alloying ena amatha kuwonjezeredwa ngati pakufunika.
| Chizindikiro cha kalasi | Phosphorous (P) | S (Sulphur) |
| SGP | % 0.040 | % 0.040 |
JIS G 3452 ili ndi zoletsa zochepa pakupanga mankhwala chifukwa JIS G 3452 imagwiritsidwa ntchito makamaka pazinthu zina monga kutumiza nthunzi, madzi, mafuta, ndi gasi.The mankhwala zikuchokera zakuthupi si chinthu chofunika kwambiri, koma mawotchi katundu chitoliro kupirira ntchito mavuto.
Tensile Properties
| Chizindikiro cha kalasi | Kulimba kwamakokedwe | Elongation, min,% | ||||||
| Chigawo choyesera | Yesani malangizo | Makulidwe a khoma, mm | ||||||
| N/mm² (MPA) | ＞3 ≤ 4 | ＞4 ≤5 | ＞5 ≤ 6 | ＞6 ≤ 7 | ＞7 | |||
| SGP | 290 min | No.11 | Kufanana ndi nsonga ya chitoliro | 30 | 30 | 30 | 30 | 30 |
| No.12 | Kufanana ndi nsonga ya chitoliro | 24 | 26 | 27 | 28 | 30 | ||
| No.5 | Perpendicular to pipe axis | 19 | 20 | 22 | 24 | 25 | ||
Kwa mapaipi a mainchesi 32A kapena pansi, ma elongation omwe ali patebuloli sagwira ntchito, ngakhale zotsatira zake zoyeserera zidzajambulidwa.Pamenepa, kufunikira kwa elongation komwe kumagwirizana pakati pa wogula ndi wopanga kungagwiritsidwe ntchito.
Flattening Katundu
Kukula: Kwa machubu okhala ndi m'mimba mwake mwadzina kuposa 50A (2B).
Palibe ming'alu pamene chubu imaphwanyidwa mpaka 2/3 ya kunja kwake kwa chubu.
Kukhazikika
Kukula: Kwa machubu achitsulo okhala ndi m'mimba mwake mwadzina ≤ 50A (2B).
Pindani chitsanzocho ku 90 ° ndi utali wamkati wapakati kuwirikiza kasanu ndi m'mimba mwake mwa chitoliro popanda kutulutsa ming'alu.
Chitoliro chilichonse chachitsulo chiyenera kukhala ndi kuyesa kwa hydrostatic pressure kapena kuyesa kosawononga.
Kuyesedwa kwa Hydrostatic
Kupanikizika: 2.5 MPa;
Nthawi: Gwirani kwa masekondi osachepera 5;
Chigamulo: chitsulo chitoliro pansi pa mavuto popanda kutayikira.
Mayeso osawononga
Mayeso a akupanga omwe afotokozedwa mu JIS G 0582 adzagwiritsidwa ntchito.Mulingo woyeserera ukhoza kukhala wovuta kwambiri kuposa Gulu la UE.
Mayeso apano a eddy omwe afotokozedwa mu JIS G 0583 adzagwira ntchito.Mulingo woyeserera ukhoza kukhala wovuta kwambiri kuposa Gulu la EZ.
Kwa mapaipi okhala ndi ma diameter ≥ 350A (14B), werengerani m'mimba mwake poyesa circumference, pomwe kulolerana ndi ± 0.5%.
Mtundu wa mapeto a chitoliro kwa DN≤300A/12B: ulusi kapena lathyathyathya mapeto.
Mtundu wa mapeto a chitoliro cha DN≤350A/14B: mapeto athyathyathya.
Ngati wogula amafuna kumapeto kwa beveled, ngodya ya bevel ndi 30-35 °, m'lifupi mwake m'mphepete mwa chitoliro chachitsulo: max 2.4mm.
JIS G 3452 ili ndi zofanana muChithunzi cha ASTM A53ndiMtengo wa GB/T3091, ndi zida za chitoliro zomwe zafotokozedwa mumiyezo iyi zitha kuganiziridwa kuti ndizofanana wina ndi mnzake pakuchita ndi kugwiritsa ntchito.
Chiyambireni kukhazikitsidwa mu 2014, Botop Steel yakhala ikugulitsa chitoliro chachitsulo cha carbon ku Northern China, chomwe chimadziwika ndi ntchito zabwino kwambiri, zinthu zamtengo wapatali, komanso zothetsera mavuto.
Kampaniyi imapereka mapaipi osiyanasiyana a zitsulo za carbon ndi zinthu zomwe zimagwirizana nazo, kuphatikizapo zopanda msoko, ERW, LSAW, ndi chitoliro chachitsulo cha SSAW, komanso mzere wathunthu wazitsulo ndi flanges.Zopangira zake zapadera zimaphatikizanso ma alloys apamwamba kwambiri ndi zitsulo zosapanga dzimbiri za austenitic, zopangidwa kuti zikwaniritse zofunikira zama projekiti osiyanasiyana a mapaipi.
Lumikizanani nafe, gulu la akatswiri ndi okonzeka kukupatsani ntchito zabwino ndi zothetsera, kuyembekezera kufikira mgwirizano wokondweretsa ndi inu, ndikutsegula pamodzi mutu watsopano wachipambano.
