Umehluko phakathi kwe-hot stretchipayipi lokunciphisaand Ipayipi yensimbi ye-LSAWI-e inamaphuzu amabili alandelayo:

1, Okuholele ekuhlukeni kwekhwalithi yomkhiqizo ngenxa yezinqubo ezihlukene, ukunciphisa ukunwebeka okushisayo kuphinde kwaqhuba inqubo ngemva kwenqubo yokushisela ye-high-frequency lapho ipayipi lensimbi le-lsaw elingatholakali —— I-Longitudinal awekho umugqa ocacile ngaphakathi nangaphandle kwama-burrs.Ukuba khona kwe-Burr kuzothinta uketshezi lwe-tube - ukugeleza, i-burr ivimbe ukugeleza okujwayelekile koketshezi, okuholela ku-whirlpool.Ngokwemigomo ye-fluid mechanics, i-welding kufanele ikhulise ukucindezelwa kwendawo, ukungaqhubeki kwenza ukuphepha kwepayipi kuncishiswe kakhulu, ukunwebeka okushisayo kunciphisa inqubo yokukhiqiza insimbi - kucatshangelwa ngokugcwele ukuba khona kwengozi ye-burrs, ukunciphisa ukukhishwa kwe-burr, okwenza kube okufanayo. ukujiya, akukho mehluko ekubukekeni nokungenamthungo.Ngakho-ke ngokwaleli phuzu lokubuka, amapayipi anciphisa ukunwebeka ashisayo nawo aqedele uguquko ngaphandle komthungo.

I-2, ikhwalithi ye-Weld inquma ngokuqondile ikhwalithi yepayipi elihlanganisiwe, ipayipi elingenamthungo lihlanganiswe nomehluko omkhulu kakhulu.I-Longitudinal ngemuva kwe-high-frequency welding, i-straight seam set carbon ayikwazi ukuqedwa, i-weld futhi umzali avele ahlangane futhi angahlanganiswa ngokuphelele abe munye - akakwazanga ukumelana nesikhathi nokucindezela.Ukushisa okushisayo kunciphisa ipayipi lensimbi yokushisela imvamisa ephezulu ngemuva kokushisa ukuze kudlule lonke, izinga lokushisa eliphelele le-annealing lama-degree angu-800, bese livula inqubo yokushintsha, ngemva kwalokho uchungechunge lwezinqubo, ukusebenza kwe-weld kanye nokusebenza kwenhlangano yomzali - bekulokhu okufanayo ekuncibilikeni okuphelele, okwenziwe kahle ukusuka kumthungo kuya kuguquko olungenamthungo.