Imibhobho ye-HSAW (umbhobho odityanisiweyo we-arc odityanisiweyo), yimabhi yentsimbi yomcu oshushu-eqengqelekayo kunye nokugotywa okwenziwe ngokwe-spiral, ukuwelda okuzenzekelayo okuntywiliselwa kwe-arc kuqhutywa ngaphakathi komthungo kunye nomthungo ongaphandle odityanisiweyo wentsimbi yomthungo ojiyileyo (ekwaziwa ngokuba ngumbhobho odityanisiweyo , umbhobho ojikelezayo, umbhobho wensimbi ojikelezayo). Ngokubhekiselele kwezi zizathu zilandelayo, isetyenziswa ngokubanzi kwimveliso yombhobho omkhulu wentsimbi:
1) Ukutshintsha i-engile yokuma, ungasebenzisa imveliso yobubanzi obufanayo bemibhobho yentsimbi;
2) ngenxa yokuba ukugoba okuqhubekayo, ubude bombhobho wensimbi ubude abunasiphelo;
3) i-weld spiral-shaped-shaped uniform distribution on the circumference of the whole pipe pipe, size yentsimbi yombhobho, ukuchaneka okuphezulu, ukuphakama okuphezulu;
4) kulula ukutshintsha ubungakanani obufanelekileyo kumanani amancinci okuvelisa umbhobho wensimbi weentlobo ezininzi.

Spiral weld umthungo ubude ityhubhu ubude, tube ubude L, ubude weld yi L / cos (8). Ixesha elide lixoxa ngombhobho ojikelezayo kunye nomthungo othe ngqo, ngokukodwa, ngubani ophakamileyo xa kuthelekiswa nombhobho wentsimbi we-UOE. Ubuchwephesha bokwenza umbhobho weSpiral ukuza kuthi ga namhlanje, kufuneka sibe novandlakanyo olubanzi noluchanekileyo kunye nothelekiso, ingcamango ??ye-weld ende ejikelezayo.

Okokuqala, ngenxa yeziphene kwi-weld parallel, kumbhobho ojikelezayo, iziphene ze-weld zifana ne "oblique defects". Ngethuba lokusetyenziswa, isikhokelo soxinzelelo oluphambili lwepayipi yensimbi, isikhokelo se-axis yepayipi yobude obulinganayo besiphako si-samll kunombhobho wokuthunga othe tye uncinci; Okwesibini, ekubeni intsimbi yombhobho iqengqeleka ipleyiti, impembelelo yokuqina kwe-anisotropy enkulu ecaleni kwendlela eqengqelekayo yexabiso le-CVN kune-perpendicular kwicala eliqengqelekayo lexabiso le-CVN ngokuphindwe kathathu ngaphezulu. Umbhobho womthungo othe tye uxhatshazwe luxinzelelo oluphambili ncakasana ngokuthe ngqo kwicala lokumelana nempembelelo yombhobho ephantsi, ngelixa i-spiral kukugxadazela elona lisezantsi kwicala loxhathiso lwempembelelo yombhobho, ukuze iintsilelo ze-spiral weld zibe ziinzuzo.