Ipayipi elishiselwe okuvunguzaukukhiqiza kusebenzisa ikhoyili egoqiwe eshisayo.Okuqukethwe kwe-alloy yekhoyili kuvame ukuba ngaphansi kunamabanga afanayo epuleti lensimbi, okwenza ngcono ukushisela kwepayipi elishiselwe elivunguzayo.Ngenxa yokuqondisa okugoqayo kwekhoyili yepayipi eshiselwe okuvunguza akusiyo i-perpendicular isiqondiso se-axis yepayipi, ukumelana nokuqhekeka kwezinto zamapayipi ahlanganisiwe.

Ngenxa yokusebenza okuyingqayizivele kwepayipi elivunguzayo, lapho ukuqhuma kwepayipi elishiselwe okuvunguza kwenzeka, i-weld yabhekana nokucindezeleka kanye ne-co-stress kuncane kakhulu, ukuqhuma emlonyeni ngokuvamile akuyona imvelaphi ye-spiral weld, ngakho ukuphepha okuphezulu.I-Spiral weld eduze nesici ne-parallel spiral weld force incane, ngakho-ke ingozi yokwanda ayikho.

Ipayipi lensimbi lingaphansi kwengcindezi yangaphakathi, ngokuvamile obondeni ekusebenziseni amandla okubili okuyinhloko, ingcindezi yeradial δY kanye ne-axial stress δX.Ukucindezeleka okuwumphumela we-Weld δ = δY (l/4sin2α + cos2α) 1/2, okuthi, α iyi-engeli ye-helix yepayipi elishisela elivunguzayo.I-engeli ye-helix yepayipi le-weld elivunguzayo ngokuvamile lingama-degree angu-50-75, ngakho-ke i-spiral weld ingcindezi enkulu ewumphumela.Emsebenzini ofanayo ngaphansi kwengcindezi efanayo Kuvunguza ashiselwe ipayipi odongeni ukujiya kungancishiswa kakhulu, Kuvunguza ipayipi isitshalo singenziwa ibe osezingeni elincane.