ʻO ka mea kūʻai aku ʻo Kina Steel Welded Carbon Pipe
Hoʻokuʻu akuPaipu kila kalapona,Paipu kila Kina,Paipu hao hao haahaa,paipu wiliwili, mai Kina. Kūleʻa kā mākou hui i ka lawe ʻana aku i nā paipu kila welded a me nā paipu kila ʻole. Hoʻokuʻu ʻia nā kaukani o nā paipu kila welded i kēlā me kēia makahiki. Hoʻokaʻawale ʻia nā paipu welded i lawe pinepine ʻia i LSAW a me SSAW. ʻIke paha ʻoe i ka ʻokoʻa ma waena o LSAW Pipe a me SSAW Pipe?
LSAW Pipe (Longitudinal Submerged Arc-Welding Pipe), kapa ʻia ʻo SAWL pipe. Lawe ʻo ia i ka pā kila ma ke ʻano he mea maka, hoʻoheheʻe ʻia e ka mīkini hoʻoheheʻe, a laila hana ʻelua ʻaoʻao submerged arc wili. Ma o kēia kaʻina hana e loaʻa ai i ka paipu kila LSAW ka ductility maikaʻi loa, weld paʻakikī, kūlike, plasticity a me ka sila nui.
ʻOi aku ka nui o ke anawaena paipu LSAW ma mua o ERW, maʻamau mai 16 iniha a 60 iniha, 406mm a 1500mm. ʻO nā hana maikaʻi ma ke kūpaʻa kiʻekiʻe, a me ke kūpaʻa haʻahaʻa haʻahaʻa.
Ua hoʻohana nui ʻia i ka ʻaila a me ke kinoea pipelines, koi nui ʻia ke anawaena nui a me ka paipu pā mānoanoa me ka ikaika kiʻekiʻe a me ka lōʻihi. I kēia manawa i ke kūkulu ʻana i ka hale e pono ai ka ikaika paʻakikī, mālama wai, ʻoihana wela, kūkulu alahaka, a me nā mea ʻē aʻe. nā paipu ma waena o ke kūlanakauhale, ke kai, a me ke kūlanakauhale. ʻO kēia ka papa 1 a me ka papa 2.
ʻO ka paipu SSAW (Spiral Submerged Arc-Welding Pipe), i kapa ʻia ʻo HSAW pipe (Helical SAW), ke ʻano laina kuʻi ʻana e like me ka helix. Ke hoʻohana nei ia i ka ʻenehana hoʻoheheʻe like o Submerged Arc-Welding me ka paipu LSAW. ʻOkoʻa ka paipu SSAW i wili ʻia ma kahi o ka LSAW i wili lōʻihi ʻia. ʻO ke kaʻina hana hana ke ʻōwili nei i ke kaula kila, e hana i ka ʻōwili ʻana i kahi kihi me ke kuhikuhi o ke kikowaena paipu, ka hana ʻana a me ke kuʻi ʻana, no laila aia ka wili kuʻi ma kahi laina spiral.
ʻO ke anawaena paipu SSAW mai ka 20 inch a 100 inch, 406 mm a 2540 mm. ʻO ka ʻāpana pōmaikaʻi hiki iā mākou ke kiʻi i ke anawaena like ʻole o nā paipu SSAW me ka nui like o ke kaula kila, aia kahi noi ākea no ka mea maka. ʻO ke kila kila, a me ka welding seam e pale i ke koʻikoʻi mua, nā hana maikaʻi e halihali i ke kaumaha.
ʻO ka hemahema ke kino kino ʻino, ʻoi aku ka lōʻihi o ka welding seam ma mua o ka lōʻihi o ka paipu, maʻalahi ke kumu i nā hemahema o nā māwae, ka lua ea, ka hoʻokomo ʻana i ka cinder, ka welding hapa, ka ikaika welding i ke kūlana huki.
No nā ʻōnaehana paipu aila a me ke kinoea, akā ma nā kikoʻī hoʻolālā ʻaila, hiki ke hoʻohana ʻia ka paipu SSAW / HSAW paipu ma nā wahi papa 3 a me ka papa 4. ʻO ke kūkulu hale, ka halihali wai a me ka mālama ʻana i ka wai, ka ʻoihana wela, nā hale etc.
Nānā nui
Palapala noi
Hoʻohana nui ʻia ia no nā ʻāpana ikaika a me nā ʻāpana, a no ke kumu nui o ka mahu, ka wai, ke kinoea a me nā paipu ea.
Papa Nui
GR.A, GR.B
Mea Kimia
| Papa | Huina %，≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| ʻAno S (paipu ʻole) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| ʻAno E | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| ʻAno F(Furnace Welded Paipu) | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
ʻAʻole ʻoi aku ka nui o kēia mau mea ʻelima ma mua o 1.00%.
B No kēlā me kēia 0.01% ka emi ʻana o ka nui o ka carbon content, ʻae ʻia ka nui o ka manganese e hoʻonui i ka 0.06%, akā ʻaʻole hiki ke kiʻekiʻe ma mua o 1.35%.
C ʻO kēlā me kēia 0.01% ka emiʻana o ke kalapona kalapona kiʻekiʻe eʻae i ka nui o ka manganese e hoʻonui i ka 0.06%, akā,ʻaʻole pono ka nui ma mua o 1.65%.
Waiwai Mekani
| mea | GR.A | GR.B |
| ikaika uʻi, ≥, psi [MPa] Ka ikaika o ka hua, ≥, psi [MPa] Ana 2in. a i ʻole 50mm elongation | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A ʻO ka lōʻihi liʻiliʻi o ka lōʻihi 2in. (50mm) e hoʻoholo ʻia e kēia ʻano kumu:
e=625000(1940)A0.2/U0.9
e = ka lōʻihi liʻiliʻi o ka anana 2in. (50mm), ka pākēneka i hoʻopuni ʻia i ka 0.5% kokoke loa;
A = helu ʻia e like me ke anawaena o waho o ka paipu inoa a i ʻole ka laula inoa o ka hāpana tensile a me kona mānoanoa pā i kuhikuhi ʻia, a hoʻopuni ʻia i kahi kokoke loa o ka hāpana tensile o 0.01 in.2 (1 mm2), a Hoʻohālikelike ʻia me 0.75in.2 (500mm2), ʻoi aku ka liʻiliʻi.
U = ka ikaika tensile palena iki, psi (MPa).
B No nā hui like ʻole o nā nui like ʻole o nā hōʻike hoʻāʻo tensile a me ka ikaika tensile haʻahaʻa i kuhikuhi ʻia, hōʻike ʻia ka elongation haʻahaʻa i koi ʻia ma ka Papa X4.1 a i ʻole ka Papa X4.2, e like me kona kūpono.
Koi hoao
ʻO ka hoʻāʻo tensile, ka hoʻāʻo ʻana, ka hoʻāʻo hydrostatic, ka hoʻāʻo uila nondestructive o nā welds.
Hiki ke hoolako
Hiki ke hoʻolako: 2000 Tons i kēlā me kēia mahina no ka papa o ASTM A53 / A53M-2012 Steel Pipe
Hoʻopili ʻia
I loko o nā pūʻolo a i loko o ka pahu lāʻau ikaika
Hāʻawi
7-14 mau lā inā ma ka waihona, 30-45 mau lā e hana ai
Uku
30% depsoit, 70% L/C a i ʻole B/L kope a i ʻole 100% L/C i ka ʻike
Huahana Huahana
Paipu paila
GB/T 8162-2008
ASTM A519-2006
BS EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
