ʻO nā paipu wiliwili ʻia ʻo Spiral Submerged Arc no ka ʻoihana hou
Nā pōmaikaʻi o ka paipu welded arc submerged spiral:
1. Hana maikaʻi:
Hōʻike nā paipu SSAW i kahi hoʻolālā weld spiral e hiki ai ke hana pono a hoʻemi i ka manawa hana.ʻO kēia hiʻohiʻona kūʻokoʻa e lilo ia i mea koho mua no nā papahana kūkulu nui e like me ka aila a mepaipu kinoea, nā ʻōnaehana hoʻoili wai, a me nā paepae ʻeli kai.ʻO ke kaʻina hana hoʻomau hoʻomau e hōʻoia i kahi kiʻekiʻe o ka pono o ka hoʻolālā, hoʻonui i ka lōʻihi a me ke ola lawelawe o ka paipu.
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 |
2. Ka ikaika a me ka maʻalahi:
ʻO ka hoʻolālā spiral o ka paipu SSAW e hoʻonui i kona ikaika, e ʻae iā ia e pale i nā kaomi o waho a me loko.Hiki i kēia mau paipu ke kū i nā kūlana o ka lewa nui, i kūpono no nā noi ma luna a ma lalo.Eia kekahi, ʻo ka maʻalahi o nā paipu SSAW e hiki ai iā lākou ke maʻalahi a hoʻokomo ʻia i nā ʻano ʻāina like ʻole, me ka ʻāina ʻōpuʻu a me nā lepo paʻa ʻole.
3. Hoʻoholo kūʻai maikaʻi:
ʻO nā kaʻina hana kuʻihao mau e hoʻonui i ka huahana ʻoiai e hōʻemi nui ana i nā hemahema wili a me nā kumukūʻai.Hoʻohui hou, hāʻawi nā spiral submerged arc welded pipes i ka ikaika a me ka lōʻihi, e hōʻemi ana i ka mālama ʻana a me ka hoʻoponopono ʻana i nā kumukūʻai i ko lākou ola ʻana, e hoʻolilo iā lākou i koho waiwai no ka ʻoihana.
ʻO nā pilikia i kū ʻia e nā paipu i hoʻoheheʻe ʻia arc submerged:
1. Mana maikaʻi:
Ma muli o nā kaʻina hana wiliwili paʻakikī e pili ana i ka hana ʻana i nā paipu hoʻoheheʻe arc submerged arc, paʻakikī ka hōʻoia ʻana i ka maikaʻi.Inā ʻaʻole mālama pono ʻia nā ʻāpana kuʻi, hiki mai nā hemahema e like me ka undercuts, pores, a me ka nele o ka hui ʻana.No ka lanakila ʻana i kēia paʻakikī, he mea koʻikoʻi nā hana hoʻomalu maikaʻi a me nā ʻōnaehana nānā holomua i ka wā o ke kaʻina hana.
2. Paipu anawaena palena palena:
ʻOiai he mea kūpono nā paipu wiliwili puʻupuʻu i loko o ka spiral no nā noi anawaena nui, ʻaʻole kūpono paha ia no nā ʻoihana e koi ana i nā nui paipu liʻiliʻi.ʻOi aku ka maikaʻi o ke kaʻina hana no nā paipu anawaena nui aʻe, ka hopena o ka loaʻa ʻana o nā mea liʻiliʻi no nā papahana liʻiliʻi e like me ka paipu hale a me nā hoʻohana ʻoihana liʻiliʻi.No ia mau koi, pono e noʻonoʻo ʻia nā ʻenehana hana paipu ʻē aʻe.
3. Ka uhi ili:
ʻO kekahi paʻakikī e kū nei i ka ʻoihana paipu SSAW ʻo ka hōʻoia ʻana i nā uhi ʻili kūpono a paʻa e pale aku i ka ʻino a me ka ʻaʻahu.Pono ka hoʻohana ʻana i ka uhi ʻana ma luna o ka spiral surfaces i nā mea hana kiʻekiʻe a me ka ʻike e hōʻoia i ka uhi ʻana a me ka pili.He mea koʻikoʻi ka uhi ʻana i ka ʻili kūpono no ka hoʻolōʻihi ʻana i ke ola o ka paipu welded arc submerged arc, ʻoi aku ma nā wahi ʻino.
I ka hopena:
Ua hōʻike ʻia nā paipu wili ʻia ʻo Spiral submerged arc he ʻenehana maikaʻi loa i ka ʻoihana hou, e hāʻawi ana i ka pono, ikaika a me ka uku-pono.ʻO kāna wili weld spiral kū hoʻokahi e hiki ai ke hana maikaʻi a hoʻonui i ka lōʻihi, kūpono ia no nā hana kūkulu nui.Eia nō naʻe, no ka holomua ʻana a me ka hoʻohana nui ʻana i kēia ʻenehana hana, pono e hoʻoponopono ʻia nā pilikia e like me ka mālama ʻana i ka maikaʻi, ka palena palena palena, a me nā uhi uhi.Ma ka lanakila ʻana i kēia mau paʻakikī ma o ka holomua ʻenehana a me ka hui pū ʻana o ka ʻoihana, ua loaʻa i ka spiral submerged arc welded pipe ka wā e hiki mai ana i ka hoʻololi ʻana a me ka mālama ʻana i nā ʻoihana koʻikoʻi a puni ka honua.