Spiral weld seam nwere ụdị dị iche iche:

1. Spiral strip end weld: ígwè isi nke gburugburu weld na ígwè ma ọ bụ ígwè weld isi na ọdụ;
2. Abụọ spiral butt weld: spiral cut is to connect the two together to form annular weld;
3. Spiral tack ịgbado ọkụ: na etinyere tupu ikpeazụ ịgbado ọkụ.N'ihi na ofu butt weld n'ọnụ.

Parametric analysis nke ịgbado ọkụ onuete
⑴ obosara weld na-ezo aka na nchikota nke elu weld na metal ala a na-akpọ weld mkpịsị ụkwụ.The otu ngafe weld cross-ngalaba, anya n'etiti abụọ na-akpọ onuete weld mkpịsị ụkwụ obosara.

⑵ gafere elu nke weld nkwado na-ezo aka njikọ na elu nke weld akụkụ akụkụ nke weld metal a na-akpọ nkwado.M na-eme ka cross-ngalaba nke weld onuete nke elu abawanye na-ebu ikike na-abawanye, na ike dịkwuo uche nke ray redio, ma ọ ga-eme ka weld mkpịsị ụkwụ nchegbu ịta.Na-achọkarị ihe karịrị elu ọ bụghị ihe na-erughị ihe ndị bụ isi, na-amụba ọkpụrụkpụ ya ma na-amụba ịdị elu nke ihe nne, ma nke kachasị ekwesịghị gafere 3mm.

⑶ penetration cross-ngalaba nke nkwonkwo welded, a na-akpọ ihe isi ihe omimi nke ntinye nke mgbaze.Ụfọdụ uru iji hụ na ejikọta ọnụ weld na isi metal ike.Mgbe ihe igwe eji eme ihe (mkpara ma ọ bụ waya) na-adịgide adịgide, omimi ntinye na-ekpebi oke kemịkalụ weld dị oke.Dị iche iche ịgbado ọkụ ụzọ chọrọ dị iche iche penetration uru, ihe atụ ịgbado ọkụ, surfacing oyi akwa iji nọgide na-esi ike na ibelata dilution nke isi metal nke weld, na premise nke n'ịhụ penetration kwesịrị ịchọ a nta omimi nke penetration.