ʻO ka spiral seam submerged arc welded steel pipe he ʻano mānoanoa o ka paia, maikaʻi ke nānā aku, hoʻoluhi ʻia, a paʻa. He paipu kila ʻole ka mānoanoa o ka pā a me ke kaumaha ʻole ma ka paipu kila. ʻO nā ʻāpana lahilahi o ka paipu kila e haki maʻalahi. ʻO ka mānoanoa pā ʻole o ka paipu kila He mea maʻalahi i ka wā o ke kaʻina hana hoʻoponopono o nā paipu kila. Hōʻike ʻia ka mānoanoa pā like ʻole o nā paipu kila i ka mānoanoa o ka paia spiral ʻole, ka mānoanoa o ka paia laina ʻole, a me ka mānoanoa a ʻoi aku ka lahilahi o ka paia ma ke poʻo a me ka huelo. ʻO nā kikoʻī:

1: ʻAʻohe mānoanoa pā ma ke poʻo a me ka huelo
Nā kumu: 1) Ua ʻoki ʻia ka ʻaoʻao mua o ka puʻupuʻu spiral i hoʻopaʻa ʻia i loko o ke arc welded steel pipe blank me ka inclination a nui loa ka piko, a ʻaʻole pololei ka lua waena o ka paipu blank, hiki ke hana maʻalahi i ke poʻo o ke poʻo. ʻaʻohe mānoanoa pā; 2) He nui loa ka elongation coefficient i ka wā e hoʻoheheʻe ʻia, a me ka huila Ua kiʻekiʻe ka wikiwiki o ka hoʻololi ʻana a ʻaʻole paʻa ka ʻōwili; 3) ʻO ka hoʻolei ʻia ʻana o ke kila paʻa ʻole e ka mīkini kuʻi hiki ke hana maʻalahi i ka mānoanoa o ka paia i ka hopena o ka paipu capillary.

2: ʻAʻohe mānoanoa o ka paia spiral
ʻO nā kumu: 1) ʻAʻole like ka mānoanoa o ka pā ma muli o nā hoʻololi e like me ka laina waena hewa ʻole o ka mīkini piercing, nā kihi inclination like ʻole o nā wili ʻelua, a i ʻole ka liʻiliʻi liʻiliʻi o ke kaomi ʻana i mua, e puʻunaue pinepine ʻia i loko o kahi spiral ma ka lōʻihi o ka tapered. paipu kila; 2) ʻO ka mānoanoa pā like ʻole ma muli o ka wehe mua ʻana o ka roller centering, ka hoʻoponopono kūpono ʻole o ka roller centering, a me ka haʻalulu o ka ejector i ka wā o ka ʻōwili ʻana e puʻunaue pinepine ʻia i loko o kahi spiral ma ka lōʻihi holoʻokoʻa o ka paipu kila tapered.