Kuxi geɖe ate ŋu anɔ pɔmpi siwo wotsɔ gakpo si mexɔ dzo o siwo wotsɔ gakpo wɔe ŋu le wo wɔwɔ me, abe undercuts, pores, unfused, cracks, kple bubuawo ene. Ekema, gbagbãƒe ka ƒomevie nènya ne èle pɔmpi siwo wotsɔ gakpo si mexɔ dzo o wɔ la ƒom?
1. Hot crack .
Efia welding crack si ga si le weld kple dzoxɔxɔ si ŋu wòku ɖo me le welding ƒe ɖoɖoa me va ɖo dzoxɔxɔ gã ƒe didime si te ɖe solidus line ŋu. Mɔxexeɖedɔléle nu ƒe afɔɖeɖewo: Kpɔ ɖiƒoƒo siwo gblẽa nu le ame ŋu abe sulfur kple phosphorus ene ƒe agbɔsɔsɔ dzi vevie le gakpo siwo mexɔ dzo o siwo wotsɔ ga wɔe kple nusiwo wotsɔ wɔa woe me, ɖea ʋuʋudedi dzodzoewo ƒe seselelãme dzi kpɔtɔna; Trɔ asi le atike siwo le weld ga me ŋu, na weld microstructure nanyo ɖe edzi, trɔ asi le nukuwo ŋu, eye nàna plasticity nanyo ɖe edzi. Ðe alesi gbegbe woɖea wo ɖokui ɖe vovoe dzi akpɔtɔ alo akakae; Zã alkaline welding nuawo nàtsɔ aɖe ɖiƒoƒo siwo le weld la me dzi akpɔtɔ eye nàna vovototodedeameme ƒe agbɔsɔsɔ nanyo ɖe edzi.
2. vuvɔŋɔli ƒe gbagbã .
Efia gbagbã si dona ne wofa ƒunukpeƒe si wotsɔ ga ƒo ƒui la ɖe dzoxɔxɔ si bɔbɔ ɖe anyi wu, si woyɔna be gbagbãƒe fafɛ la me. Mɔxexeɖedɔléle nu ƒe afɔɖeɖewo: Zã low-hydrogen type welding materials, wɔ ɖe mɔfiame siwo le mɔfiameawo me dzi pɛpɛpɛ hafi nàzãe; Ɖe ami kple tsi si le weldments la dzi hafi nàw nu, ɖe hydrogen si le weld la me dzi kpɔtɔ; Tia welding process parameters siwo sɔ kple dzoxɔxɔ ƒe nyawo be woaɖe weld ƒe sesẽ ƒe nɔnɔme dzi akpɔtɔ la, wowɔa haidrodzin ɖeɖeɖa ƒe atikewɔwɔ enumake le welding megbe be haidrodzin nasi le welded joint me;
3. Gbugbɔ do dzo ɖe crack .
Efia gbagbã si wowɔna le esi wogado dzo na pɔmpi si wotsɔ gakpo si mexɔ dzo o si wotsɔ ga wɔe la do dzoe le dzoxɔxɔ ƒe didime aɖe (si ɖea nuteɖeamedzi dzi kpɔtɔna alo dzoxɔxɔnamɔ̃ bubu aɖe) me vɔ megbe, si woyɔna be reheat crack.
Mɔxexeɖedɔléle nu ƒe afɔɖeɖewo: Le gɔmeɖose si nye be woaɖo aɖaŋua ƒe nudidiwo gbɔ la, tia nusiwo ŋu ŋusẽ mele o ƒe welding nuawo, ale be weld ƒe ŋusẽ nabɔbɔ wu gɔmeɖokpe ga la, nuteɖeamedzia le gbadzaa le weld la me, ƒo asa na gbagbãƒewo le dzoxɔxɔ-affected zone; Ðe nuteɖeamedzi kple nuteɖeamedzi ƒe susu ƒe tsɔtsɔ ɖe nu ŋu ƒe ƒuƒoƒo dzi kpɔtɔ; Kpɔ dzoxɔxɔ ƒe dzoxɔxɔ si wotsɔ ƒoa ʋuƒo si wotsɔ ga wɔe la dzi, tia dzoxɔxɔ si do ŋgɔ na dzoxɔxɔ kple dzoxɔxɔ ƒe dzoxɔxɔ si sɔ, eye nàƒo asa na teƒe si woate ŋu awɔ dɔ le alesi nàte ŋui.
Ele be pɔmpi si wotsɔ gakpo si mexɔ dzo o si wotsɔ gakpo wɔe nalé ŋku ɖe nuto si ƒo xlãe ŋu le ewɔwɔ me, eye woawɔ asitɔtrɔ siwo sɔ ɖe ɣeyiɣia nu eye woawɔ nuŋlɔɖiwo. Ne wotsɔe kpe ɖe nɔnɔme vovovo siwo me wotsɔa gakpo si mexɔ dzo o siwo wotsɔ ga wɔe ƒe pɔmpiwo ɖena fiana ŋu la, . Hangao Tech (Seko Mɔ̃wo)s High-speed stainless steel welded pipe line tube making machine zãa Seko ƒe Elektrikŋusẽ Dzi Kpɔkpɔ ƒe Ðoɖo tɔxɛ aɖe tsɔ kpɔa akasanu si woɖe ɖa dzi, si nana be wowɔa welding ƒe dɔwɔwɔ nyuie kple eƒe nyonyome nyona ɖe edzi ŋutɔ. Le ɣeyiɣi ma ke me la, wozãa eddy current glaw detector la ɖekae tsɔ léa ŋku ɖe pɔmpi si wotsɔ ga wɔe la ƒe gli ememetɔ ŋu ɣesiaɣi. PLC ɖoɖo si me nunya le la léa ŋku ɖe welded pipe ƒe wɔwɔ ŋuti nyatakakawo ŋu heŋlɔa wo ɖi le ɣeyiɣi ŋutɔŋutɔ me, ale be woƒe kutsetsea nyona ɖe edzi ŋutɔ, si wɔnɛ be woɖea ga si wozãna la dzi kpɔtɔna.
