ʻO nā paipu pila welded anawaena nui
I nā makahiki i hala iho nei, ua piʻi nui ka noi no ka hoʻopili ʻana i nā paipu kila ma nā ʻoihana like ʻole.Me ka ulu wikiwiki o ke kūkulu ʻana a me ka hoʻomohala ʻana i ka ʻoihana, ke anawaena o paipu pilake ulu nei a nui.No laila, he mea ko'iko'i ka pono o ke ki'eki'e ki'eki'e spiral welded nui anawaena kila paipu.
Ma kā mākou hui, ua ʻike mākou i kēia pono e ulu nei a hoʻomohala i kahi hopena kiʻekiʻe e hoʻokō i nā pono o ka mākeke - kā mākou puʻu paipu kila nui.Hoʻolālā ʻia kēia mau paipu puʻupuʻu e hāʻawi i ka hiki ke hoʻokau mua i nā pahu wai hohonu, e hana ana iā lākou i mea koʻikoʻi o kekahi papahana kūkulu kai.
Kūlana | Papa kila | haku mele | Nā waiwai tensile | ʻO ka hoʻāʻo ʻana o Charpy Impact a me Drop Weight Tear Test | ||||||||||||||
C | Si | Mn | P | S | V | Nb | Ti | CEV4)(%) | Rt0.5 Mpa Hua ikaika | Rm Mpa Ikaika Tensile | Rt0.5/ Rm | (L0=5.65 √ S0 )Hooloihi A% | ||||||
max | max | max | max | max | max | max | max | 'ē aʻe | max | min | max | min | max | max | min | |||
L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | ʻO ka hoʻāʻo ʻana i ka hopena Charpy: E hoʻāʻo ʻia ka hopena o ka ikehu o ke kino paipu a me ka weld seam e like me ka mea i koi ʻia ma ke kūlana kumu.No nā kikoʻī, e ʻike i ke kūlana kumu.Hoʻāʻo waimaka kaumaha kaumaha: Wahi ʻāhi koho | |
GB/T9711-2011(PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Kūkākūkā | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
Nānā: | ||||||||||||||||||
1)0.015 ≤ Altot < 0.060;N ≤ 0.012;AI—N ≥ 2—1;Cu ≤ 0.25;Ni ≤ 0.30;Cr ≤ 0.30;Cr ≤ 0.30; | ||||||||||||||||||
2)V+Nb+Ti ≤ 0.015% | ||||||||||||||||||
3)No nā māka kila a pau, hiki iā Mo ≤ 0.35%, ma lalo o kahi ʻaelike. | ||||||||||||||||||
ʻO Mn Cr+Mo+V Cu+Ni4)CEV=C+ 6 + 5 + 5 |
ʻO kā mākoupuʻu paipu kila wiliwili ʻiahana ʻia me ka hoʻohana ʻana i ka ʻenehana hou loa e kū i nā kaiapuni ʻoi loa.ʻO ke alahaka paha, ke kūkulu alanui, nā hale kiʻekiʻe a i ʻole nā mea noiʻi ʻē aʻe e pono ai ke kumu hilinaʻi, kūpono kā mākou paile piling.
ʻO ka mea e hoʻokaʻawale ai i kā mākou paipu piling ʻo ko lākou maikaʻi a me ka lōʻihi.Hoʻomaopopo mākou i ke koʻikoʻi o kahi kahua paʻa a paʻa, ʻo ia ke kumu e hele nui ai mākou e hōʻoia i ka hoʻokō ʻana o kā mākou puʻu paipu kila nui i nā kūlana kiʻekiʻe o ka maikaʻi.Me kā lākou hana paʻa a me ka ʻenehana welding kiʻekiʻe, ua kūkulu ʻia kā mākou pilang pipes e mau loa, e hāʻawi iā ʻoe i ka maluhia o ka noʻonoʻo ʻana i kākoʻo ʻia kāu papahana e ka ʻenehana maikaʻi loa o ka ʻoihana.
Eia hou, loaʻa kā mākou paipu piling i nā ʻano nui like ʻole e hoʻokō i nā pono kikoʻī o kāu papahana.Inā makemake ʻoe i ka paipu welded nui a i ʻole ka nui liʻiliʻi, hiki iā mākou ke hāʻawi i ka hopena kūpono i kāu mau koi.
Eia hou, haʻaheo mākou i kā mākou kūpaʻa i ka hoʻomau ʻana i ke kaiapuni.Hana ʻia kā mākou mau puʻupuʻu paipu spiral welded me ka hoʻohana ʻana i nā kaʻina hana pili i ke kaiapuni, e hōʻoia ana ʻaʻole lākou e hoʻokō wale i nā kūlana kiʻekiʻe loa akā e hoʻokō pū nō hoʻi i nā lula kūlohelohe koʻikoʻi.ʻO ia ke ʻano o ke koho ʻana i kā mākou paipu piling, ʻaʻole ʻoe e hoʻopukapuka wale i kahi hoʻonā kumu hilinaʻi a paʻa, akā ke hāʻawi pū nei ʻoe i kahi ʻōmaʻomaʻo, ʻoi aku ka paʻa o ka wā e hiki mai ana.
I ka hōʻuluʻulu manaʻo, ʻo kā mākou paipu pila, me nā puʻu paipu kila welded spiral, ʻo ia ka hiʻohiʻona o ka maikaʻi o ka ʻoihana.Me ko lākou ʻano maikaʻi ʻole, ka lōʻihi a me ka hoʻomau ʻana o ke kaiapuni, ʻo lākou ke koho kūpono loa no kēlā me kēia papahana e koi ana i kahi kumu hilinaʻi.No laila, i ka wā e hālāwai ai i kāu mau pono piling pipe, ʻo kā mākou ʻoihana kāu koho maikaʻi loa.Kūpaʻa mākou i ka hāʻawi ʻana iā ʻoe i nā hopena maikaʻi loa no kāu mau koi kumu āpau.