Introduction to Classification of Welded Steel Pipe

▇ ▍ wehewehe

Hana ʻia ka paipu kila welded me ka hoʻohana ʻana i nā papa kila pālahalaha a i ʻole nā ​​ʻāpana kila, a ʻo kāna kaʻina hana hana e hana i nā hili i loko o kona kino.ʻO ke kikoʻī, i ka wā e hana ʻia ai nā paipu kila welded, piʻi ʻia ka pā kila a i ʻole ka ʻili a ma hope i hoʻopaʻa ʻia i loko o ka pōʻai, ʻano paipu kuʻuna a i ʻole ke ʻano huinaha. ke ano o ka wiliwili ana.No ka laʻana, ua wili ʻia ka paipu LSAW me ka longitudinally, a ua hoʻopili ʻia ka paipu SSAW.ʻO ka paipu ERW ka mea i hoʻopaʻa ʻia i ke kūpaʻa uila, e hopena i kahi hili e holo like ana ma ke kino paipu.

▇ ▍Paipu kila ERW 

ʻO nā paipu hoʻoheheʻe alapine kiʻekiʻe ka maʻamau-pololei, akā ʻaʻole pono nā paipu kila i hoʻoheheʻe ʻia i ka wā kiʻekiʻe.Hoʻokumu ʻia ke kiʻekiʻe kiʻekiʻe pololei-slit electric resistance welded steel pipe e ka hopena o ka ʻili a me ka hopena kokoke o ke alapine kiʻekiʻe ma hope o ka hoʻokumu ʻia ʻana o ka pā wili wela e ka mīkini hoʻoheheʻe ʻia, a ʻo ka lihi o ka pahu pahu hoʻoheheʻe ʻia a hoʻoheheʻe ʻia, a hana ʻia ka hoʻoheheʻe ʻana ma lalo o ka hana a ka roller kaomi e ʻike ai i ka hana.ʻOkoʻa ka paipu kila welded kiʻekiʻe me ka hana maʻamau.Hana ʻia ka weld i ka mea kumu o ke kino kaula kila, a ʻoi aku ka ikaika o ka mīkini ma mua o ka paipu welded maʻamau.He laumania ka ʻili, ka pololei kiʻekiʻe, ke kumu kūʻai haʻahaʻa, a he haʻahaʻa haʻahaʻa ke kiʻekiʻe o ka weld seam, he mea pono i ka uhi ʻana o ka 3PE anti-corrosion coating.

▇ ▍Paipu kila LSAW 

Hoʻohana ʻia ka longitudinal submerged arc welded ma ka hoʻohana ʻana i hoʻokahi mea a me ka pā mānoanoa e like me ka mea maka, ke kaomi ʻana (ka ʻōwili) i ka pā kila i loko o ka mold a i ʻole ka hana ʻana i ka mīkini i loko o kahi paipu blank, me ka hoʻohana ʻana i ʻelua ʻaoʻao submerged arc welding, a hoʻonui i ke anawaena.Hiki ke hoʻololi ʻia ka nui o ka pā kila e like me nā māka kila like ʻole, ka mānoanoa o ka pā, a me ka laulā pā.I ka manawa like, pale maikaʻi ka hana uku deformation i nā hopena ʻino o ka deformation mold i ka hoʻokumu ʻana a hōʻoia i ka palahalaha o ka lōʻihi piha o ka pā kila i ka wā o ke kaomi ʻana.He ʻano like ka hana ʻai i ka wā o ka hana ʻana, e hōʻoia ana i ka pōʻai ʻole o ka pahu a me ka palahalaha o ka ʻaoʻao welding.ʻO ka huahana i hoʻopau ʻia he ākea ākea o nā kikoʻī, a ʻo ka weld he paʻakikī maikaʻi, plasticity, uniformity, a compactness.Loaʻa iā ia nā mea maikaʻi o ka nui o ka paipu anawaena, ka mānoanoa o ka pā paipu, ke kūpaʻa kiʻekiʻe, ke kūpaʻa haʻahaʻa haʻahaʻa, a me ke kūpaʻa corrosion ikaika. 

▇ ▍Paipu kila SSAW

Paipu wiliwili ʻia (SSAW paipu, i kapa ʻia ʻo HSAW paipu).Hoʻokumu ʻia ka paipu e ka ʻenehana wiliwili arc submerged arc.Hoʻokumu ʻia nā paipu welded spiral me ka hoʻohana ʻana i nā papa liʻiliʻi a i ʻole nā ​​​​wili ʻōwili wela, kahi e hoʻohaʻahaʻa nui ai i kā lākou hana hana.ʻO ke ʻano o ka laina wiliwili e like me ka helix.ʻO ke kaʻina hana wiliwili spiral e ʻae i ka hana ʻana i nā paipu nui-diameter kūpono no ka lawe ʻana i ka nui o ka aila a me ke kinoea.Ua kaupalena ʻia kekahi mau paipu SSAW i nā noi haʻahaʻa haʻahaʻa.