ʻOi aku ka maikaʻi loa no ka pā paipu hao Kina a me ka laina hana paipu ʻole
ma muli o ke kōkua maikaʻi loa, nā ʻano huahana kiʻekiʻe a me nā hoʻonā, nā kumukūʻai koʻikoʻi a me ka hoʻopuka maikaʻi ʻana, hauʻoli mākou i kahi kaulana maikaʻi loa i waena o kā mākou mea kūʻai. He ʻoihana ikaika mākou me ka mākeke ākea no ka Best Price for China Steel Pipe Fence a me Seamless Pipe Production Line, Mālama kā mākou ʻoihana i nā ʻoihana liʻiliʻi i hoʻohui ʻia e ka ʻoiaʻiʻo a me ka ʻoiaʻiʻo e mālama i nā pilina lōʻihi me kā mākou mea kūʻai.
ma muli o ke kōkua maikaʻi loa, nā ʻano huahana kiʻekiʻe a me nā hoʻonā, nā kumukūʻai koʻikoʻi a me ka hoʻopuka maikaʻi ʻana, hauʻoli mākou i kahi kaulana maikaʻi loa i waena o kā mākou mea kūʻai. He ʻoihana ikaika mākou me ka mākeke ākea noPaipu hao hao ʻole Kina, Kumukuai o ka Paipu kila, Ke ʻimi nei mākou i nā manawa e hālāwai ai me nā hoa āpau mai ka home a ma waho no ka hui lanakila-lanakila. Manaʻolana mākou e loaʻa ka hui lōʻihi me ʻoukou a pau ma ke kumu o ka pōmaikaʻi like a me ka hoʻomohala maʻamau.
Nānā nui
Palapala noi
Hoʻohana ʻia ka pipeline no ka lawe ʻana i ka aila, ka mahu a me ka wai i huki ʻia mai ka ʻāina a i nā ʻoihana ʻoihana aila a me ke kinoea ma o ka pipeline.
Papa Nui
Papa no API 5L laina paipu kila: Gr.B X42 X52 X60 X65 X70
Mea Kimia
| Papa kila (inoa hao) | ʻO ka hapa nui, e pili ana i ka wela a me nā kānana huahanaa,g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max b | max b | min | max | max | max | max | max | |
| Paipu Seamless | ||||||||
| L175 a i ʻole A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P a i ʻole A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 a i ʻole A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 a i ʻole B | 0.28 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 a i ʻole X42 | 0.28 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 a i ʻole X46 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 a i ʻole X52 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 a i ʻole X56 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 a i ʻole X60 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 a i ʻole X65 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L485 a i ʻole X70 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| Paipu Weled | ||||||||
| L175 a i ʻole A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P a i ʻole A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 a i ʻole A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 a i ʻole B | 0.26 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 a i ʻole X42 | 0.26 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 a i ʻole X46 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 a i ʻole X52 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 a i ʻole X56 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 a i ʻole X60 | 0.26 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 a i ʻole X65 | 0.26 e | 1.45 e | — | 0.030 | 0.030 | f | f | f |
| L485 a i ʻole X70 | 0.26 e | 1.65 e | — | 0.030 | 0.030 | f | f | f |
| a Cu ≤ 0.50 %; Ni ≤ 0.50 %; Cr ≤ 0.50 % a me Mo ≤ 0.15 %. b No kēlā me kēia hoʻemi ʻana o 0.01 % ma lalo o ka manaʻo kiʻekiʻe i ʻōlelo ʻia no ke kalapona, hiki ke hoʻonui ʻia he 0.05 % ma luna o ka ʻike nui loa no Mn, a hiki i ka 1.65 % kiʻekiʻe no nā māka ≥ L245 a i ʻole B, akā ≤ L360 a i ʻole X52; a hiki i ka 1.75 % kiʻekiʻe no nā māka > L360 a i ʻole X52, akā < L485 a i ʻole X70; a hiki i ka 2.00 % kiʻekiʻe no ka Papa L485 a i ʻole X70. c Inā ʻaʻole i ʻae ʻia, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Inā ʻaʻole i ʻae ʻia. f Inā ʻaʻole i ʻae ʻia, Nb + V + Ti ≤ 0.15 %. g ʻAʻole ʻae ʻia ka hoʻohui ʻana o B a me ke koena B ≤ 0.001 %. | ||||||||
Waiwai Mekani
|
Papa Paipu | Kino Paipu o ka Paipu Holoʻole a Weled | Weld Seam o EW, LW, SAW, a me BIPIPaipu | ||
| Ka ikaika huaa Rt0.5 | Ikaika U'ia Rm | ʻO ka lōʻihi(ma ka 50 mm a i ʻole 2 in.) Af | Ikaika U'ib Rm | |
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 a i ʻole A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175P a i ʻole A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 a i ʻole A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 a i ʻole B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 a i ʻole X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 a i ʻole X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 a i ʻole X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 a i ʻole X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 a i ʻole X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 a i ʻole X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 a i ʻole X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| No nā papa waena, ʻo ka ʻokoʻa ma waena o ka ikaika uʻi haʻahaʻa haʻahaʻa i ʻōlelo ʻia a me ka ikaika hoʻohua liʻiliʻi i ʻōlelo ʻia no ke kino paipu e like me ka hāʻawi ʻia ma ka papa no ka papa kiʻekiʻe aʻe. e like ka waiwai me ka mea i hoʻoholo ʻia no ke kino paipu me ka hoʻohana ʻana i ka footnote a). c Ka elongation liʻiliʻi i kuhikuhi ʻia,Af, i hōʻike ʻia ma ka pākēneka a hoʻopuni ʻia i ka pākēneka kokoke loa, e like me ka hoʻoholo ʻana me ka hoʻohana ʻana i ka hoohalike penei:
i hea C ʻo 1940 no ka helu ʻana me ka hoʻohana ʻana i nā ʻāpana SI a me 625,000 no ka helu ʻana me nā ʻāpana USC; AʻO xc ka ʻāpana hoʻāʻo tensile kūpono, i hōʻike ʻia ma nā millimeters huinaha (inches square), penei: 1) no nā ʻāpana hoʻāʻo pōʻai kea, 130 mm2 (0.20 in.2) no 12.7 mm (0.500 in.) a me 8.9 mm (0.350 in.) nā ʻāpana hōʻike anawaena; 65 mm2 (0.10 in.2) no 6.4 mm (0.250 in.) anawaena mau apana hoao; 2) no nā ʻāpana hoʻāʻo piha, ʻo ka liʻiliʻi o a) 485 mm2 (0.75 in.2) a me b) ka ʻāpana cross-sectional o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ke anawaena o waho a me ka mānoanoa pā o ka paipu, hoʻopuni ʻia i ka 10 mm2 kokoke loa (0.01 in.2); 3) no nā ʻāpana hoʻāʻo ʻāwī, ʻoi aku ka liʻiliʻi o a) 485 mm2 (0.75 in.2) a me b) ka ʻāpana keʻa o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ka laulā kikoʻī o ka ʻāpana hoʻāʻo a me ka mānoanoa pā o ka paipu. , hoʻopuni ʻia i ka 10 mm2 kokoke loa (0.01 in.2); U ʻo ia ka ikaika tensile haʻahaʻa i ʻōlelo ʻia, i hōʻike ʻia ma nā megapascals (paona no ka ʻīniha square). | ||||
ʻO ke anawaena o waho, mai ka poepoe a me ka mānoanoa o ka paia
| Hōʻike ʻia ma waho anawaena D (i) | Ka hoʻomanawanui anawaena, ʻīniha d | ʻO ka hoʻomanawanui i waho o ka puni | ||||
| Paipu koe ka hopena a | Hopena paipu a,b,c | Paipu koe ka Hope a | Hoʻopau Paipu a,b,c | |||
| Paipu SMLS | Paipu Weled | Paipu SMLS | Paipu Weled | |||
| < 2.375 | -0.031 a i + 0.016 | – 0.031 a i + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 i ka 6.625 | 0.020D no | 0.015D no | ||||
| +/- 0.0075D | – 0.016 a i + 0.063 | D/t≤75 | D/t≤75 | |||
| Ma ka aelike no | Ma ka aelike no | |||||
| >6.625 i ka 24.000 | +/- 0.0075D | +/- 0.0075D, akā ka nui o 0.125 | +/- 0.005D, akā ka nui o 0.063 | 0.020D | 0.015D | |
| >24 a hiki i 56 | +/- 0.01D | +/- 0.005D akā ka nui o 0.160 | +/- 0.079 | +/- 0.063 | 0.015D no ka nui o 0.060 | 0.01D no ka nui o 0.500 |
| No ka mea | No ka mea | |||||
| D/t≤75 | D/t≤75 | |||||
| Ma ka ʻaelike | Ma ka ʻaelike | |||||
| no ka mea | no ka mea | |||||
| D/t≤75 | D/t≤75 | |||||
| >56 | E like me ka ʻae ʻana | |||||
| a. ʻO ka hopena o ka paipu he 4 ka lōʻihi o ka ʻai ʻana i kēlā me kēia o nā ʻāpana paipu | ||||||
| b. No ka paipu SMLS e pili ana ka hoʻomanawanui no t≤0.984in a ʻo nā ʻae no ka paipu mānoanoa e like me ka ʻaelike. | ||||||
| c. No ka paipu ho'onui me D≥8.625in a no ka paipu ho'onui 'ole, hiki ke ho'oholo 'ia ke anawaena a me ka ho'omanawanui o waho me ka ho'ohana 'ana i ke anawaena o loko i helu 'ia a i 'ole 'ia ke anawaena o loko ma mua o ka OD i kuhikuhi 'ia. | ||||||
| d. No ka hoʻoholo ʻana i ka mālama ʻana i ke anawaena, ua wehewehe ʻia ke anawaena paipu e like me ke anapuni o ka paipu i kēlā me kēia mokulele pōʻai i puʻunaue ʻia e Pi. | ||||||
| Mānoanoa pā | Hoʻomanawanui a |
| t iniha | iniha |
| Paipu SMLS b | |
| ≤ 0.157 | -1.2 |
| > 0.157 a i < 0.948 | + 0.150t / – 0.125t |
| ≥ 0.984 | + 0.146 a i ʻole + 0.1t, ʻoi aku ka nui |
| - 0.120 a i ʻole - 0.1t, ʻoi aku ka nui | |
| Paipu huila c,d | |
| ≤ 0.197 | +/- 0.020 |
| > 0.197 a i < 0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 |
| a. Inā ʻoi aku ka liʻiliʻi o ka mānoanoa o ka pā ma mua o ke kumu kūʻai i hāʻawi ʻia ma kēia pākaukau, e hoʻonui ʻia ka ʻae ʻana no ka mānoanoa o ka pā e ka nui e mālama ai i ka laulā kūpono. | |
| b. No ka paipu me D≥ 14.000 i loko a me t≥0.984in, hiki ke ʻoi aku ka mānoanoa o ka pā ma ka ʻāina ma mua o ka hoʻohui ʻana no ka mānoanoa o ka pā me ka 0.05t hou aʻe inā ʻaʻole i ʻoi aku ka nui o ka hoʻomanawanui ʻana no ka nuipa. | |
| c. ʻAʻole pili ka ʻae ʻana no ka mānoanoa o ka pā i ka wahi weld | |
| d. E ʻike i ka kikoʻī API5L piha no nā kikoʻī piha | |
Hoʻomanawanui
Koi hoao
Hōʻike hydrostatic
Paipu e kū i kahi hoʻāʻo hydrostatic me ka ʻole o ka leaka ma o ka weld seam a i ʻole ke kino paipu. ʻAʻole pono e hoʻāʻo ʻia nā hui hui hydrostatic hāʻawi i nā ʻāpana paipu i hoʻohana pono ʻia.
Hoʻo piʻo
ʻAʻole e puka mai nā māwae ma kekahi ʻāpana o ka ʻāpana hoʻāʻo a ʻaʻole e wehe ʻia ka weld.
Ho'āʻo palahalaha
ʻO nā pae hoʻoholo no ka hoʻāʻo palahalaha:
- Paipu EW D<12.750 in:
- X60 me T 500in. ʻAʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma lalo o 66% o ke anawaena o waho. No nā papa a me nā paia, 50%.
- No ka paipu me ka D/t > 10, ʻaʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma lalo o 30% o ke anawaena o waho.
- No nā nui ʻē aʻe e nānā i ka kikoʻī API 5L piha.
ʻO ka hōʻike hopena CVN no PSL2
Pono ka nui o nā paipu PSL2 a me nā māka i ka CVN. E hoʻāʻo ʻia ka paipu seamless ma ke kino. E ho'āʻo ʻia ka paipu welded i ke kino, ka weld paipu a me ka ʻāpana wela. E nānā i ka kikoʻī API 5L piha no ka pakuhi o nā nui a me nā māka a me nā waiwai ikehu e pono ai.
