HSAW ọkpọkọ (spiral submerged arc welded pipe), bụ mabe nke warara nchara na-ekpo ọkụ na-ekpo ọkụ ma na-ehulata dị ka gburugburu, akpaka arc ịgbado ọkụ na-arụ n'ime onuete na mpụta onuete welded spiral seaam steel pipe (nke a makwaara dị ka spiral welded pipe). , spiral pipe, spiral steel pipe). Maka ihe ndị na-esonụ, a na-eji ya eme ihe n'ọtụtụ ebe na mmepụta nke nnukwu ọkpọkọ ígwè:
1) na-agbanwe n'akuku udi, ị nwere ike iji otu obosara warara mmepụta dị iche iche calibers ígwè ọkpọkọ;
2) n'ihi na ọ bụ na-ehulata na-aga n'ihu, ogologo ogologo ọkpọkọ ígwè na-akparaghị ókè;
3) weld spiral ekara edo nkesa na gburugburu nke dum ígwè ọkpọkọ, ígwè ọkpọkọ size, elu nkenke, elu ike;
4) dị mfe ịgbanwe nha kwesịrị ekwesị maka obere ọnụọgụ ígwè nke mmepụta ihe dị iche iche.

Spiral weld seam ogologo tube ogologo, ogologo tube L, ogologo weld bụ L / cos (8). N'ihi na ogologo oge na-arụ ụka na gburugburu na ogologo onuete ọkpọkọ, akpan akpan, onye ka elu tụnyere UOE ígwè ọkpọkọ. Spiral anwụrụ n'ichepụta technology ka taa, anyị kwesịrị keukwu na ziri ezi nwale na ntụnyere, echiche nke 'a ogologo gburugburu weld.

Nke mbụ, n'ihi ntụpọ na weld yiri ya, maka ọkpọkọ gburugburu, ntụpọ weld dị ka "nrụrụ oblique". N'oge a na-eji ya eme ihe, ntụzịaka mgbakasị isi nke ọkpọkọ nchara, ntụzịaka ọkpọkọ nke ogologo ntụpọ nhata bụ samll karịa ọkpọkọ kwụ ọtọ dị obere; Nke abuo, ebe ọ bụ na a na-atụgharị ọkpọkọ pipeline, na-emetụta ike siri ike nnukwu anisotropy n'akụkụ ntụgharị CVN uru karịa ka ọ dị na ntụgharị ntụgharị nke uru CVN ugboro atọ dị elu. Straight onuete ọkpọkọ tara ahụhụ site isi nchegbu bụ kpomkwem perpendicular na ntụziaka nke kacha nta anwụrụ mmetụta eguzogide, mgbe gburugburu bụ ịma jijiji kasị ala na ntụziaka nke ọkpọkọ mmetụta eguzogide, nke mere na gburugburu weld adịghị mma n'ime uru.